| 1 | | % (c) 2009-2026 Lehrstuhl fuer Softwaretechnik und Programmiersprachen, |
| 2 | | % Heinrich Heine Universitaet Duesseldorf |
| 3 | | % This software is licenced under EPL 1.0 (http://www.eclipse.org/org/documents/epl-v10.html) |
| 4 | | |
| 5 | | % bmachine provides access to the currently loaded B-machine and all its subsidiary machines |
| 6 | | |
| 7 | | :- module(bmachine,[bmachine_is_precompiled/0, |
| 8 | | b_enumerated_sets_precompiled/0, |
| 9 | | b_set_initial_machine/0, |
| 10 | | b_set_empty_machine/0, |
| 11 | | b_set_machine/3, |
| 12 | | b_set_typed_machine/2, |
| 13 | | b_load_eventb_project/1, % used for loading .eventb files |
| 14 | | b_set_eventb_project_flat/3, % set an Event-B project from terms |
| 15 | | |
| 16 | | % used for loading additional VisB/... defs |
| 17 | | b_load_additional_definitions_file/1, |
| 18 | | b_load_additional_definitions_from_list_of_facts/1, |
| 19 | | b_load_additional_definitions_from_term/1, |
| 20 | | additional_defs_loaded/0, |
| 21 | | |
| 22 | | get_full_b_machine/2, |
| 23 | | full_b_machine/1, |
| 24 | | get_full_b_machine_sha_hash/1, % get SHA hash of loaded and type-checked B machine |
| 25 | | b_machine_is_loaded/0, |
| 26 | | |
| 27 | | get_proven_invariant/2, |
| 28 | | get_unproven_invariants/1, |
| 29 | | get_invariant_list_with_proof_info/1, |
| 30 | | load_additional_information/1, |
| 31 | | %% generate_specialized_invariants/0, %% no longer exists |
| 32 | | get_operation_info/2, |
| 33 | | b_get_operation_description/2, |
| 34 | | get_operation_description_template_expr/2, |
| 35 | | |
| 36 | | b_load_machine_from_file/1, b_load_machine_from_file/2, |
| 37 | | b_load_machine_probfile/1, b_load_machine_probfile/2, |
| 38 | | b_load_machine_from_list_of_facts/2, |
| 39 | | b_load_machine_from_term/2, % used for Alloy |
| 40 | | b_machine_precompile/0, other_spec_precompile/0, |
| 41 | | b_machine_reset/0, |
| 42 | | |
| 43 | | b_machine_name/1, |
| 44 | | |
| 45 | | b_get_all_used_filenames/1, b_get_main_filename/1, |
| 46 | | add_additional_filename/2, |
| 47 | | set_additional_filename_as_parsing_default/3, reset_filename_parsing_default/2, |
| 48 | | b_get_main_filenumber/1, b_filenumber/4, portray_filenumbers/0, |
| 49 | | get_machine_file_number/4, |
| 50 | | b_get_relative_file_name_for_machine/2, |
| 51 | | b_absolute_file_name_relative_to_main_machine/2, |
| 52 | | b_get_animated_sections/1, |
| 53 | | |
| 54 | | b_get_machine_set/1, b_get_machine_set/2, |
| 55 | | b_get_named_machine_set/2, b_get_named_machine_set/3, |
| 56 | | b_get_disjoint_constants_of_type/3, b_get_constant_represented_inside_global_set/2, |
| 57 | | b_get_machine_constants/1, b_get_machine_all_constants/1, |
| 58 | | b_machine_has_constants/0, b_machine_has_constants_or_properties/0, |
| 59 | | b_is_constant/2, b_is_constant/1, b_is_unused_constant/1, |
| 60 | | get_constant_span/2, |
| 61 | | b_machine_has_variables/0, |
| 62 | | b_is_variable/1, b_is_variable/2, |
| 63 | | b_get_constant_variable_description/2, |
| 64 | | constant_variable_marked_as_memo/1, constant_variable_marked_as_expand/1, |
| 65 | | b_get_machine_variables_in_original_order/1, b_get_machine_variables/1, |
| 66 | | get_primed_machine_variables/1, |
| 67 | | get_nr_of_machine_variables/1, get_nr_of_machine_constants/1, |
| 68 | | b_get_all_used_identifiers/1, % Note: may contain var$0 instead of var for becomes_such |
| 69 | | b_get_all_used_identifiers_in_section/2, % ditto |
| 70 | | get_machine_identifiers/2, get_machine_identifiers_with_pp_type/2, |
| 71 | | source_code_for_identifier/6, |
| 72 | | |
| 73 | | b_get_properties_from_machine/1, b_get_non_ignored_properties_from_machine/2, |
| 74 | | b_get_invariant_from_machine/1, |
| 75 | | b_get_linking_invariant_from_machine/1, |
| 76 | | b_machine_has_assertions/0, |
| 77 | | b_get_static_assertions_from_machine/1, b_machine_has_static_assertions/0, |
| 78 | | b_get_unproven_static_assertions_from_machine/1, |
| 79 | | b_get_dynamic_assertions_from_machine/1, b_machine_has_dynamic_assertions/0, |
| 80 | | b_get_unproven_dynamic_assertions_from_machine/1, |
| 81 | | b_get_assertions_from_main_machine/2, b_main_machine_has_no_assertions/0, |
| 82 | | b_machine_has_unproven_assertions/0, get_assertions_from_machine/2, |
| 83 | | get_all_assertions_from_machine/1, |
| 84 | | b_machine_has_proven_invariants/0, |
| 85 | | b_get_assertions/3, |
| 86 | | b_get_assertion_count/3, |
| 87 | | is_discharged_assertion/1, |
| 88 | | |
| 89 | | b_get_initialisation_from_machine/2, |
| 90 | | b_safe_get_initialisation_from_machine/2, % raise error if no INIT clause |
| 91 | | b_machine_has_operations/0, |
| 92 | | b_get_machine_operation/4, b_get_machine_operation/6, |
| 93 | | b_get_machine_operation_for_animation/4, % does some rewriting for ANY parameters |
| 94 | | b_get_machine_operation_for_animation/6, % does some rewriting for ANY parameters for TopLevel=true |
| 95 | | b_get_machine_operation_for_animation/7, % additional Pos parameter |
| 96 | | b_get_promoted_machine_operations/1, |
| 97 | | b_top_level_operation/1, b_top_level_feasible_operation/1, |
| 98 | | b_top_level_operation_without_machine_prefix/2, |
| 99 | | b_is_initialisation_name/1, |
| 100 | | b_is_operation_name/1, b_get_operation_pos/2, |
| 101 | | b_get_machine_operation_parameter_types/2, |
| 102 | | b_get_machine_operation_parameter_names/2, |
| 103 | | b_get_machine_operation_parameter_names_for_animation/2, |
| 104 | | b_get_machine_operation_result_names/2, |
| 105 | | b_get_machine_operation_typed_parameters/2, |
| 106 | | b_get_machine_operation_typed_parameters_for_animation/2, |
| 107 | | b_get_machine_operation_typed_results/2, |
| 108 | | b_get_machine_operation_signature/2, |
| 109 | | b_machine_operation_names_in_reverse_order/1, |
| 110 | | b_get_operation_variant/3, |
| 111 | | |
| 112 | | b_get_machine_setscope/2, |
| 113 | | b_get_machine_operation_max/2, |
| 114 | | b_get_machine_operation_time_out/2, |
| 115 | | b_get_machine_goal/1, |
| 116 | | b_set_machine_goal/1, b_set_machine_goal/2, |
| 117 | | b_set_machine_searchscope/1, b_set_machine_searchscope/2, |
| 118 | | b_set_parsed_typed_machine_goal/1, b_unset_machine_goal/0, |
| 119 | | b_reset_machine_goal_from_DEFINITIONS/0, |
| 120 | | b_parse_machine_expression_from_codes/2, |
| 121 | | b_parse_machine_expression_from_codes_with_prob_ids/2, |
| 122 | | b_parse_machine_expression_from_codes_with_prob_ids/3, |
| 123 | | b_parse_machine_expression_from_codes_with_prob_ids/4, |
| 124 | | b_parse_machine_expression_from_codes/5, |
| 125 | | b_parse_machine_expression_from_codes/6, |
| 126 | | b_parse_machine_subsitutions_from_codes/6, |
| 127 | | b_parse_machine_formula/3, b_parse_machine_formula_from_codes/7, |
| 128 | | b_parse_machine_predicate/2, b_parse_machine_predicate/3, |
| 129 | | b_parse_optional_machine_predicate/2, |
| 130 | | b_parse_machine_predicate_from_codes/3, |
| 131 | | b_parse_machine_predicate_from_codes_open/5, |
| 132 | | b_parse_machine_operation_pre_post_predicate/3, b_parse_machine_operation_pre_post_predicate/5, |
| 133 | | get_machine_operation_additional_identifiers/2, |
| 134 | | |
| 135 | | determine_type_of_formula/2, determine_type_of_formula/3, |
| 136 | | |
| 137 | | parse_expression_raw_or_atom_with_prob_ids/2, |
| 138 | | |
| 139 | | % a version where parsing and type checking are separate: |
| 140 | | b_parse_wo_type_machine_predicate_from_codes_to_raw_expr/2, |
| 141 | | b_type_check_raw_expr/4, |
| 142 | | |
| 143 | | b_get_machine_searchscope/1, |
| 144 | | b_get_machine_animation_function/2, |
| 145 | | b_get_machine_heuristic_function/1, |
| 146 | | b_get_machine_animation_expression/2, |
| 147 | | b_get_machine_custom_edges_function/2, |
| 148 | | b_get_machine_custom_nodes_function/2, |
| 149 | | b_get_machine_custom_graph_function/2, |
| 150 | | b_machine_temp_predicate/1, |
| 151 | | %set_temp_predicate/2, |
| 152 | | assert_temp_typed_predicate/1, |
| 153 | | reset_temp_predicate/0, |
| 154 | | add_additional_property/2, b_machine_additional_property/1, |
| 155 | | |
| 156 | | get_animation_image/2, get_animation_image_source_file/2, |
| 157 | | b_get_definition/5, b_get_definition_with_pos/6, |
| 158 | | b_get_definition_name_with_pos/4, % more efficient version; if we are only interested in def. name |
| 159 | | b_get_definition_string_from_machine/2, b_get_definition_string_from_machine/3, |
| 160 | | b_definition_prefixed/5, b_sorted_b_definition_prefixed/4, |
| 161 | | % get typed definitions without parameters: |
| 162 | | b_get_typed_definition/3, |
| 163 | | get_definitions_section/1, b_get_typed_definition_with_error_list/7, |
| 164 | | b_get_typed_predicate_definition/3, |
| 165 | | b_get_typed_expression_definition/3, b_get_true_expression_definition/1, |
| 166 | | pre_expand_typing_scope/2, |
| 167 | | |
| 168 | | b_nth1_invariant/3, % get nth invariant with used Ids |
| 169 | | b_nth1_non_ignored_invariant/3, % only succeed for those that do not have prob-ignore pragma |
| 170 | | b_invariant_number_list/1, |
| 171 | | b_nth1_invariant_is_ignored/1, number_of_ignored_invariants/1, |
| 172 | | b_specialized_invariant_for_op/2, |
| 173 | | b_specialized_invariant_mask_for_op/2, |
| 174 | | b_operation_preserves_full_invariant/1, b_operation_preserves_invariant/2, |
| 175 | | tcltk_get_specialized_invariant_for_op/2, tcltk_get_specialized_invariants_for_ops/1, |
| 176 | | b_get_operation_normalized_read_write_info/3, % used to be b_normalized_rwsets_for_op/3, |
| 177 | | b_get_operation_unchanged_variables/2, |
| 178 | | b_operation_cannot_modify_state/1, |
| 179 | | b_operation_reads_output_variables/3, |
| 180 | | b_get_operation_non_det_modifies/2, |
| 181 | | |
| 182 | | b_extract_values_clause_assignment/3, |
| 183 | | |
| 184 | | b_type_expression/5,b_type_expression_for_full_b_machine/6, |
| 185 | | b_type_open_predicate/5,b_type_open_predicate_with_errors/4, |
| 186 | | b_type_open_exists_predicate/3, |
| 187 | | type_with_errors/4, |
| 188 | | |
| 189 | | b_show_machine_representation_unicode/4, b_show_machine_representation/4, |
| 190 | | b_get_internal_prolog_representation_as_codes/1, |
| 191 | | b_write_machine_representation_to_file/2, |
| 192 | | b_write_machine_representation_to_file/3, |
| 193 | | b_write_eventb_machine_to_classicalb_to_file/1, |
| 194 | | b_get_eventb_machine_as_classicalb_codes/3, |
| 195 | | b_show_eventb_as_classicalb/2, |
| 196 | | |
| 197 | | b_get_machine_refinement_hierarchy/1, |
| 198 | | b_get_refined_machine/1, b_get_refined_machine_name/1, b_get_refined_ancestors_names/1, |
| 199 | | b_get_machine_header_position/2, |
| 200 | | b_get_model_type/1, |
| 201 | | b_machine_statistics/2, |
| 202 | | |
| 203 | | % More Proof Information: |
| 204 | | discharged_guard_strengthening/4, |
| 205 | | |
| 206 | | % Flow information |
| 207 | | wp_untyped/3, clear_wp/0, |
| 208 | | nonchanging_guard/2, |
| 209 | | typecheck_predicates/4 |
| 210 | | ]). |
| 211 | | |
| 212 | | :- use_module(library(lists)). |
| 213 | | :- use_module(library(ordsets)). |
| 214 | | |
| 215 | | :- use_module(self_check). |
| 216 | | :- use_module(error_manager). |
| 217 | | :- use_module(debug). |
| 218 | | :- use_module(bmachine_construction,[check_machine/4,type_in_machine_l/7,type_open_predicate_with_quantifier/6]). |
| 219 | | :- use_module(bsyntaxtree). |
| 220 | | :- use_module(bmachine_structure,[get_section/3,write_section/4,get_section_texprs/3]). |
| 221 | | :- use_module(parsercall). |
| 222 | | :- use_module(tools). |
| 223 | | :- use_module(translate,[translate_machine/3,translate_eventb_to_classicalb/3]). |
| 224 | | :- use_module(bmachine_eventb,[check_event_b_project/4,is_eventb_additional_info/1]). |
| 225 | | :- use_module(kernel_freetypes,[register_freetypes/1]). |
| 226 | | :- use_module(b_machine_hierarchy). |
| 227 | | :- use_module(kodkodsrc(kodkod), [replace_by_kodkod/3]). |
| 228 | | |
| 229 | | :- use_module(b_global_sets,[find_inequal_global_set_identifiers/4, |
| 230 | | b_get_prob_deferred_set_elements/2, |
| 231 | | b_check_and_precompile_enumerated_sets/0, |
| 232 | | b_check_and_precompile_deferred_sets/0, |
| 233 | | b_check_and_precompile_global_set_symmetry/0]). |
| 234 | | |
| 235 | | % for applying transformations on the machines |
| 236 | | :- use_module(record_detection,[replace_sets_by_records/2]). |
| 237 | | :- use_module(partition_detection,[detect_partitions/2]). |
| 238 | | |
| 239 | | :- use_module(module_information,[module_info/2]). |
| 240 | | :- module_info(group,ast). |
| 241 | | :- module_info(description,'This module provides access to the various parts of the loaded B machine.'). |
| 242 | | |
| 243 | | :- set_prolog_flag(double_quotes, codes). |
| 244 | | |
| 245 | | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 246 | | % bmachine: module for storing the currently loaded machine |
| 247 | | % Contains predicates for getting (already typed) information about |
| 248 | | % different parts of the machine |
| 249 | | % many predicates are precompiled by b_precompile_machine/0, see below for |
| 250 | | % details. |
| 251 | | |
| 252 | | :- volatile bmachine_is_precompiled/0. |
| 253 | | :- dynamic bmachine_is_precompiled/0. /* TRUE if the precompiled predicates have been set */ |
| 254 | | |
| 255 | | assert_bmachine_is_precompiled :- |
| 256 | | (bmachine_is_precompiled -> true ; assertz(bmachine_is_precompiled), debug_println(4,bmachine_is_precompiled)). |
| 257 | | |
| 258 | | :- volatile machine/2. |
| 259 | | :- dynamic machine/2. |
| 260 | | % there is only one main machine fact |
| 261 | | |
| 262 | | % true if a machine is loaded |
| 263 | | b_machine_is_loaded :- (machine(_,_) -> true). |
| 264 | | |
| 265 | | get_full_b_machine(Name,Res) :- |
| 266 | | (machine(Name,M) -> Res=M |
| 267 | | ; ground(Name) -> add_error(bmachine,'No B machine with this name loaded:',Name), fail |
| 268 | | ; add_error(bmachine,'No B machine loaded'), fail |
| 269 | | ). |
| 270 | | |
| 271 | | full_b_machine(machine(Name,M)) :- get_full_b_machine(Name,M). |
| 272 | | |
| 273 | | :- use_module(extension('probhash/probhash'),[raw_sha_hash/2]). |
| 274 | | get_full_b_machine_sha_hash(Hash) :- full_b_machine(FM), raw_sha_hash(FM,Hash). |
| 275 | | |
| 276 | | b_set_machine(Main,Machines,Errors) :- |
| 277 | | b_machine_reset, |
| 278 | ? | check_machine(Main,Machines,M1,Errors1),!, |
| 279 | | apply_machine_transformations(M1,ResultMachine), |
| 280 | | ( no_real_perror_occurred(Errors1) -> |
| 281 | | %% get_memory_used(M1), %% |
| 282 | | assert_main_machine(ResultMachine) |
| 283 | | %%, get_memory_used(M2),print_memory_used(M2), print_memory_used_difference(M1,M2),nl %% |
| 284 | | ; |
| 285 | | true), |
| 286 | | Errors=Errors1. |
| 287 | | |
| 288 | | assert_main_machine(X) :- %tools_printing:trace_print(X),nl, |
| 289 | | nonvar(X), X=machine(A,B), |
| 290 | | !, |
| 291 | | assertz(machine(A,B)), |
| 292 | | auto_recompile_for_new_main_machine. |
| 293 | | assert_main_machine(X) :- add_internal_error('Illegal format: ',assert_main_machine(X)),fail. |
| 294 | | |
| 295 | | :- meta_predicate apply_transformation_step(*,2,*,*). |
| 296 | | % apply some transformations on the machine that require global information |
| 297 | | % (other local transformations can be found in ast_cleanup) |
| 298 | | apply_machine_transformations --> |
| 299 | | apply_transformation_step('record definition detection', replace_sets_by_records), |
| 300 | | apply_transformation_step('partition detection', detect_partitions). % is this necessary?? done in ast_cleanup |
| 301 | | |
| 302 | | apply_transformation_step(Name,Pred,In,Out) :- |
| 303 | | ( call(Pred, In, Out) -> true |
| 304 | | ; |
| 305 | | ajoin(['applying ', Name, ' failed, skipping.'], Msg), |
| 306 | | add_error(bmachine,Msg), |
| 307 | | In=Out). |
| 308 | | |
| 309 | | % try to translate (parts of) the properties to Kodkod |
| 310 | | % if it succeeds, replace the translated predicates by |
| 311 | | % calls to the Kodkod process |
| 312 | | try_kodkod :- |
| 313 | | get_preference(use_solver_on_load,kodkod), |
| 314 | | b_get_machine_constants(Constants), |
| 315 | | Constants = [_|_],!, |
| 316 | | b_get_properties_from_machine(OldPredicate), |
| 317 | | ( replace_by_kodkod(Constants,OldPredicate,NewPredicate) -> |
| 318 | | retract(machine(N,OldMachine)), |
| 319 | | retractall( b_get_properties_from_machine(_) ), |
| 320 | | write_section(properties,NewPredicate,machine(N,OldMachine),NewMachine), |
| 321 | | assertz( NewMachine ), |
| 322 | | assertz( b_get_properties_from_machine(NewPredicate) ) |
| 323 | | ; |
| 324 | | true). |
| 325 | | try_kodkod. |
| 326 | | |
| 327 | | :- use_module(bmachine_static_checks, [static_check_main_machine/1]). |
| 328 | | % set a machine term as current machine, without calling type checking |
| 329 | | % (used for Z translations) |
| 330 | | b_set_typed_machine(M1,FromFile) :- |
| 331 | | b_machine_clear, |
| 332 | | static_check_main_machine(M1), % done by check_machine in b_set_machine above |
| 333 | | apply_machine_transformations(M1,ResultMachine), |
| 334 | | assert_main_machine(ResultMachine), |
| 335 | | set_all_used_filenames([FromFile]). |
| 336 | | |
| 337 | | b_set_eventb_project_flat(Models,Contextes,Proofs) :- |
| 338 | | b_machine_clear, |
| 339 | | set_animation_mode(b), set_animation_minor_mode(eventb), |
| 340 | | analyse_eventb_hierarchy(Models,Contextes), |
| 341 | | ( check_event_b_project(Models,Contextes,Proofs,M1) -> |
| 342 | | apply_machine_transformations(M1,ResultMachine), |
| 343 | | assert_main_machine(ResultMachine) % has the form machine/2 |
| 344 | | ; |
| 345 | | % Note: if there are typecheck errors due to missing .ptm files for axiomatic operators it is not an internal error! |
| 346 | | fail). |
| 347 | | |
| 348 | | b_load_eventb_project(Filename) :- |
| 349 | | read_eventb_project_from_file(Filename,Machines,Contexts,Proofs,Errors,Prefs), |
| 350 | | (Errors=[] -> true ; add_error(b_load_eventb_project,'Errors in Event-B Package: ',Errors)), |
| 351 | | set_stored_prefs(Prefs), |
| 352 | | set_all_used_filenames([Filename]), |
| 353 | | b_set_eventb_project_flat(Machines,Contexts,Proofs), |
| 354 | | clear_wp, |
| 355 | | (load_additional_information(Proofs) -> true ; add_error(b_load_eventb_project,'Failed to load proof information',Proofs)). |
| 356 | | % generate_specialized_invariants. |
| 357 | | |
| 358 | | read_eventb_project_from_file(Filename, Machines, Contexts, Proofs, Errors, Prefs) :- |
| 359 | | open(Filename, read, Stream, [encoding(utf8)]), |
| 360 | | call_cleanup(read_eventb_project_from_stream(Stream, Filename, LoadCommand, Prefs), close(Stream)), |
| 361 | | (eventb_load_command(LoadCommand, Machines, Contexts, Proofs, Errors) |
| 362 | | -> true |
| 363 | | ; add_error_and_fail(b_load_eventb_project, 'This is not a valid EventB Project file:', Filename) |
| 364 | | ). |
| 365 | | |
| 366 | | read_eventb_project_from_stream(Stream, Filename, LC, Prefs) :- |
| 367 | | safe_read(Stream, Filename, Term), |
| 368 | | (Term == end_of_file |
| 369 | | -> Prefs = [] |
| 370 | | ; process_eventb_project_term(Term, LC, Prefs, PrefsTail), |
| 371 | | read_eventb_project_from_stream(Stream, Filename, LC, PrefsTail) |
| 372 | | ). |
| 373 | | |
| 374 | | safe_read(Stream,Filename,T) :- |
| 375 | | catch(read(Stream,T), E, ( |
| 376 | | ajoin(['.eventb file "', Filename, '" is corrupted; exception occurred while reading:'],Msg), |
| 377 | | add_error(safe_read,Msg,E), |
| 378 | | T=end_of_file |
| 379 | | )). |
| 380 | | |
| 381 | | process_eventb_project_term(Term, _LC, Prefs, Prefs) :- |
| 382 | | %tools_printing:nested_write_term_to_codes(Term,Cs), format('~s~n',[Cs]), |
| 383 | | var(Term), |
| 384 | | !, |
| 385 | | add_warning(b_load_eventb_project, 'Bare variable term in Event-B project: ', Term). |
| 386 | | process_eventb_project_term(package(LoadCommand), LC, Prefs, Prefs) :- |
| 387 | | !, |
| 388 | | (nonvar(LC) |
| 389 | | -> add_error_and_fail(b_load_eventb_project, 'Duplicate package/1 term in Event-B project: ', package(LoadCommand)) |
| 390 | | ; LC = LoadCommand |
| 391 | | ). |
| 392 | | process_eventb_project_term(stored_preference(Pref,Val), _LC, [stored_preference(Pref,Val)|Prefs], Prefs) :- !. |
| 393 | | process_eventb_project_term(emf_model(_Name,_Base64Xml), _LC, Prefs, Prefs) :- !. % not used |
| 394 | | process_eventb_project_term(Term, _LC, Prefs, Prefs) :- |
| 395 | | functor(Term, F, N), |
| 396 | | add_warning(b_load_eventb_project, 'Unrecognized term in Event-B project: ', F/N). |
| 397 | | |
| 398 | | eventb_load_command(LoadCommand, _, _, _, _) :- var(LoadCommand), !, fail. |
| 399 | | eventb_load_command(load_event_b_project(Machines,Contexts,Proofs,Errors), Machines, Contexts, Proofs, Errors). |
| 400 | | eventb_load_command(load_event_b_project(Machines,Contexts,Errors), Machines, Contexts, [], Errors) :- |
| 401 | | print('% Deprecated EventB Project without Proof Info.'), nl. |
| 402 | | |
| 403 | | set_stored_prefs([stored_preference(Pref,Val)|Prefs]) :- |
| 404 | | printsilent(stored_preference(Pref,Val)), nls, |
| 405 | | preferences:set_preference(Pref,Val), |
| 406 | | set_stored_prefs(Prefs). |
| 407 | | set_stored_prefs([]). |
| 408 | | |
| 409 | | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 410 | | % Collect Proof Information from Event B |
| 411 | | |
| 412 | | :- volatile discharged/3. |
| 413 | | :- volatile discharged_theorem/3, wd_po/3, wp_untyped/3. |
| 414 | | :- volatile nonchanging_guard/2, discharged_guard_strengthening/4. |
| 415 | | :- dynamic discharged/3. |
| 416 | | % discharged(Model,Event,Name) : invariant Name in model Model is preserved by Event (no matter which Event at which refinement level) |
| 417 | | :- dynamic discharged_theorem/3. |
| 418 | | :- dynamic wd_po/3. |
| 419 | | :- dynamic wp_untyped/3. |
| 420 | | :- dynamic nonchanging_guard/2. |
| 421 | | :- dynamic discharged_guard_strengthening/4. |
| 422 | | |
| 423 | | :- volatile b_specialized_invariant_for_op/2, b_operation_preserves_invariant/2. |
| 424 | | :- dynamic b_specialized_invariant_for_op/2, b_operation_preserves_invariant/2. |
| 425 | | :- volatile b_nth1_invariant/3, b_invariant_number_list/1, b_nth1_invariant_is_ignored/1, |
| 426 | | b_specialized_invariant_mask_for_op/2, get_proven_invariant/2. |
| 427 | | :- dynamic b_nth1_invariant/3, b_invariant_number_list/1, b_nth1_invariant_is_ignored/1, |
| 428 | | b_specialized_invariant_mask_for_op/2, get_proven_invariant/2. |
| 429 | | :- volatile complete_discharged_info/0. |
| 430 | | :- dynamic complete_discharged_info/0. |
| 431 | | |
| 432 | | |
| 433 | | clear_wp :- |
| 434 | | retractall( wp_untyped(_,_,_) ). |
| 435 | | %retractall( wp_typed(_,_,_) ). only in flow.pl |
| 436 | | |
| 437 | | load_additional_information([]) :- !. |
| 438 | | load_additional_information([H|T]) :- |
| 439 | ? | load_additional_information_fact(H),!, |
| 440 | | load_additional_information(T). |
| 441 | | load_additional_information([H|T]) :- !, |
| 442 | | add_internal_error('Unknown additional info: ',load_additional_information_fact(H)), |
| 443 | | load_additional_information(T). |
| 444 | | load_additional_information(I) :- !, |
| 445 | | add_internal_error('Additional info not a list: ',load_additional_information_fact(I)). |
| 446 | | |
| 447 | | % old style proof info |
| 448 | | load_additional_information_fact(discharged(Machine,Theorem)) :- % a discharged theorem |
| 449 | | debug_println(9,discharged_theorem(Machine,old_style_proof_info,Theorem)), |
| 450 | | assertz(discharged_theorem(Machine,invariant,Theorem)). |
| 451 | | load_additional_information_fact(discharged(Machine,Event,Invariant)) :- |
| 452 | | debug_println(9,discharged(Machine,Event,Invariant)), |
| 453 | | assertz(discharged(Machine,Event,Invariant)). |
| 454 | | load_additional_information_fact(Term) :- % theories are handled in bmachine_eventb.pl already |
| 455 | | is_eventb_additional_info(Term). |
| 456 | | |
| 457 | | % new style proof info po(Machine,Info,SourceList,Discharged) |
| 458 | | |
| 459 | | load_additional_information_fact(po(Machine,'Invariant preservation',Source,true)) :- % invariant preservation |
| 460 | | add_discharged_po_infos(Source,Machine). |
| 461 | | |
| 462 | | load_additional_information_fact(po(Machine,'Invariant establishment',Source,true)) :- % invariant establishment |
| 463 | | add_discharged_po_infos(Source,Machine). |
| 464 | | |
| 465 | | load_additional_information_fact(po(Machine,Text,Source,Proven)) :- % invariant wd |
| 466 | | Text = 'Well-definedness of Invariant', |
| 467 | | (member(invariant(Invariant),Source) |
| 468 | | -> debug_println(9,wd_po(Machine,Invariant,Proven)), |
| 469 | | assertz(wd_po(Machine,Invariant,Proven)) |
| 470 | | ; add_warning(bmachine,'Could not locate source of invariant WD-PO in machine ',Machine) |
| 471 | | % this could be due to some plug-in generating invariants |
| 472 | | ). |
| 473 | | load_additional_information_fact(po(Machine,Text,Source,Proven)) :- % axiom wd |
| 474 | | Text = 'Well-definedness of Axiom', |
| 475 | | (member(axiom(Axiom),Source) |
| 476 | | -> debug_println(9,wd_axiom(Machine,Axiom,Proven)) % TO DO: assert and use |
| 477 | | ; add_warning(bmachine,'Could not locate source of axiom WD-PO in machine ',Machine) |
| 478 | | % this could be due to some plug-in generating invariants |
| 479 | | ). |
| 480 | | load_additional_information_fact(po(Machine,Text,Source,Proven)) :- |
| 481 | | Text = 'Well-definedness of Theorem', % could be invariant or axiom or guard |
| 482 | | member(invariant(Invariant),Source), |
| 483 | | debug_println(9,wd_po(Machine,Invariant,Proven)), |
| 484 | | assertz(wd_po(Machine,Invariant,Proven)). |
| 485 | | load_additional_information_fact(po(Machine,Text,Source,Proven)) :- % try axiom theorem wd |
| 486 | | Text = 'Well-definedness of Theorem', |
| 487 | | member(axiom(Axiom),Source), |
| 488 | | debug_println(9,wd_axiom(Machine,Axiom,Proven)). % TO DO: assert and use |
| 489 | | load_additional_information_fact(po(Machine,Text,Source,Proven)) :- % try proven theorem as guard |
| 490 | | Text = 'Well-definedness of Theorem', |
| 491 | | (member(guard(Grd),Source), |
| 492 | | member(event(Evt),Source) |
| 493 | | -> debug_println(9,wd_guard(Machine,Evt/Grd,Proven)) % TO DO: assert and use |
| 494 | | ; add_warning(bmachine,'Could not locate source of theorem WD-PO in machine ',Machine) |
| 495 | | % this could be due to some plug-in generating invariants |
| 496 | | ). |
| 497 | | load_additional_information_fact(po(Machine,Text,Source,Proven)) :- % wd of action |
| 498 | | Text = 'Well-definedness of action', |
| 499 | | (member(action(ACT),Source) % probably the guard in the last event with discharged info ?? |
| 500 | | -> debug_println(9,wd_action(Machine,ACT,Proven)) % TO DO: assert and use, if false: discard proven invariants?! |
| 501 | | ; format('Illegal Rodin PO source in ~w for ~w: ~w~n',[Machine,Text,Source]) |
| 502 | | ). |
| 503 | | load_additional_information_fact(po(Machine,Text,Source,Proven)) :- % wd of guard |
| 504 | | Text = 'Well-definedness of Guard', |
| 505 | | (member(guard(GRD),Source) % probably the guard in the last event with discharged info ?? |
| 506 | | -> debug_println(9,wd_guard(Machine,GRD,Proven)) % TO DO: assert and use |
| 507 | | ; format('Illegal Rodin PO source in ~w for ~w: ~w~n',[Machine,Text,Source]) |
| 508 | | ). |
| 509 | | load_additional_information_fact(po(Machine,'Theorem',[invariant(Theorem)],true)) :- % a theorem |
| 510 | | debug_println(9,discharged_theorem(Machine,invariant,Theorem)), |
| 511 | | assertz(discharged_theorem(Machine,invariant,Theorem)). |
| 512 | | load_additional_information_fact(po(Machine,'Theorem',[axiom(Theorem)],true)) :- % a theorem |
| 513 | | debug_println(9,discharged_theorem(Machine,axiom,Theorem)), |
| 514 | | assertz(discharged_theorem(Machine,axiom,Theorem)). |
| 515 | | load_additional_information_fact(po(Machine,'Theorem',[guard(GuardTheorem),event(Event)],true)) :- % a theorem in a guard |
| 516 | | debug_println(9,discharged_theorem(Machine,guard(Event),GuardTheorem)), |
| 517 | | assertz(discharged_theorem(Machine,guard(Event),GuardTheorem)). |
| 518 | | |
| 519 | | % stuff we don't yet care about |
| 520 | | load_additional_information_fact(po(Machine,Text,Infos,Proven)) :- |
| 521 | | ( Text = 'Guard strengthening (split)' |
| 522 | | ; Text = 'Guard strengthening (merge)' |
| 523 | | ; Text = 'Guard strengthening' ), |
| 524 | | !, |
| 525 | | (Proven=true, Infos = [event(AbsEvent),guard(Guard),event(ConcreteEvent)] |
| 526 | | -> assertz(discharged_guard_strengthening(Machine,AbsEvent,Guard,ConcreteEvent)), |
| 527 | | debug_println(19,discharged_guard_strengthening(Machine,AbsEvent,Guard,ConcreteEvent)) |
| 528 | | ; true |
| 529 | | ). |
| 530 | | load_additional_information_fact(po(_,'Variant of event',_,_)). |
| 531 | | load_additional_information_fact(po(_,'Natural number variant of event',_,_)). |
| 532 | | load_additional_information_fact(po(_,'Action simulation',_,_)). |
| 533 | | load_additional_information_fact(po(_,'Feasibility of witness',_,_)). |
| 534 | | load_additional_information_fact(po(_,'Feasibility of action',_,_)). |
| 535 | | load_additional_information_fact(po(_,'Well-definedness of witness',_,_)). |
| 536 | | load_additional_information_fact(po(_,'Well-definedness of variant',_,_)). |
| 537 | | load_additional_information_fact(po(_,'Finiteness of variant',_,_)). |
| 538 | | load_additional_information_fact(po(_,'Equality of common variables',_,_)). |
| 539 | | |
| 540 | | load_additional_information_fact(po(_Machine,_Kind,_Source,false)). % ignore everything that is not proven |
| 541 | | |
| 542 | | load_additional_information_fact(po(_Machine,_Kind,_Source,reviewed)). % ignore everything that is only reviewed |
| 543 | | |
| 544 | | % ignore exporter version for now |
| 545 | | % we are compatible to both versions 2 and 3 (added abstract constants) |
| 546 | | load_additional_information_fact(exporter_version(V)) :- V=2 ; V=3. |
| 547 | | |
| 548 | | % ignored because the pragmas are attached to the machine in load_event_b_project/4 |
| 549 | | load_additional_information_fact(pragma(_Type,_Source,_AttachedTo,_Content)). |
| 550 | | |
| 551 | | load_additional_information_fact(wp(S,D,P)) :- |
| 552 | | assertz( wp_untyped(S,D,P) ). |
| 553 | | |
| 554 | | load_additional_information_fact(nonchanging_guard(E,P)) :- |
| 555 | | typecheck_predicates(P,TypedPred,E,_), |
| 556 | | assertz(nonchanging_guard(E,TypedPred)). |
| 557 | | |
| 558 | | load_additional_information_fact(invariant(_I)). %ignore |
| 559 | | |
| 560 | | typecheck_predicates([],[],_,_). |
| 561 | | typecheck_predicates([H|T],[TH|TT],S,D) :- |
| 562 | | (S='INITIALISATION' -> Scope1 = []; Scope1=[operation(S)]), |
| 563 | | ((D='INITIALISATION';var(D)) -> Scope2 = Scope1; Scope2=[operation(D)|Scope1]), |
| 564 | | Scope = [variables|Scope2], |
| 565 | | b_type_expression(H,Scope, _, TH, _), |
| 566 | | typecheck_predicates(T,TT,S,D). |
| 567 | | |
| 568 | | |
| 569 | | add_discharged_po_infos(Source,Machine) :- |
| 570 | | % Source = [event(A1),...,event(CurMachineEvent),invariant(Inv)] |
| 571 | | % note that CurMachineEvent could be equal to A1; A1 can be split up into multiple events (one of which could have the same name as A1; see Ticket PROB-292) |
| 572 | | get_bottom_event(Source,Event), |
| 573 | | member(invariant(Invariant),Source), |
| 574 | | debug_println(9,discharged(Machine,Event,Invariant)), |
| 575 | | assertz(discharged(Machine,Event,Invariant)), |
| 576 | | % TO DO: should we propagate info up to abstract events which are not split up or where all refinements preserve a certain invariant ?? |
| 577 | | fail. |
| 578 | | add_discharged_po_infos(_Source,_Machine). |
| 579 | | |
| 580 | | % get the last event entry in proof info source list |
| 581 | | get_bottom_event(Source,Event) :- |
| 582 | | (bottom_event(Source,'$NONE'(none),Event) -> true |
| 583 | | ; add_error(bmachine,'Could not determine event for proof info: ',Source),fail). |
| 584 | | bottom_event([],Ev,Ev) :- Ev \= '$NONE'(none). |
| 585 | | bottom_event([event(E)|T],_,Res) :- !,bottom_event(T,E,Res). |
| 586 | | bottom_event([_|T],E,Res) :- bottom_event(T,E,Res). |
| 587 | | |
| 588 | | :- use_module(debug). |
| 589 | | |
| 590 | | tcltk_get_specialized_invariants_for_ops(list(Res)) :- |
| 591 | | findall([Name,InvHeader,TI | Tail], |
| 592 | | ((b_top_level_operation(Name) ; Name='$initialise_machine'), |
| 593 | | tcltk_get_specialized_invariant_for_op_single(Name,TI,NrUnProven), |
| 594 | | tcltk_get_proven_invariant_for_op(Name,PI), |
| 595 | | ajoin([' INVARIANT (',NrUnProven,')'],InvHeader), |
| 596 | | (PI='none' -> Tail = ['END;'] |
| 597 | | ; Tail = [' NON-TRIVIAL PROVEN INVARIANT:', PI, 'END;'] |
| 598 | | ) |
| 599 | | ), Res). |
| 600 | | tcltk_get_specialized_invariant_for_op_single(Event,TI,NrUnProven) :- |
| 601 | | (b_specialized_invariant_for_op(Event,Invariant) -> |
| 602 | | conjunction_to_list(Invariant,IL), length(IL,NrUnProven), |
| 603 | | translate:translate_bexpression(Invariant,TI) |
| 604 | | ; TI = 'not_simplified', NrUnProven='-'). |
| 605 | | tcltk_get_specialized_invariant_for_op(Event,list(TI)) :- |
| 606 | | (b_specialized_invariant_for_op(Event,Invariant) -> |
| 607 | | conjunction_to_list(Invariant,IL), |
| 608 | | (IL=[] -> TI = ['fully_proven'] |
| 609 | | ; maplist(translate:translate_bexpression,IL,TI)) |
| 610 | | ; TI = ['not_simplified']). |
| 611 | | tcltk_get_proven_invariant_for_op(Event,TI) :- % get non-trivially proven invariants |
| 612 | | (get_proven_invariant(Event,Invariant), \+ is_truth(Invariant) -> |
| 613 | | translate:translate_bexpression(Invariant,TI) |
| 614 | | ; TI = 'none'). |
| 615 | | |
| 616 | | |
| 617 | | :- public b_nth1_invariant_calc/3. |
| 618 | | b_nth1_invariant_calc(Nr,Invariant,UsedIds) :- |
| 619 | | get_invariant_list_with_used_ids(IL,IL_Ids), |
| 620 | ? | nth1(Nr,IL,Invariant), |
| 621 | | nth1(Nr,IL_Ids,UsedIds). |
| 622 | | |
| 623 | | % bmachine:b_nth1_invariant(Nr,Inv,Used), format('~nInvariant ~w over ~w~n',[Nr,Used]), translate:print_bexpr(Inv),nl,fail |
| 624 | | % bmachine:b_specialized_invariant_mask_for_op(Op,Mask), format('Mask ~w : ~w~n',[Op,Mask]),fail |
| 625 | | |
| 626 | | :- use_module(bsyntaxtree,[predicate_has_ignore_pragma/1]). |
| 627 | | :- public b_nth1_invariant_is_ignored_calc/1. |
| 628 | | b_nth1_invariant_is_ignored_calc(Nr) :- |
| 629 | | get_preference(use_ignore_pragmas,true), |
| 630 | | b_nth1_invariant(Nr,Inv,_UsedIds), |
| 631 | | predicate_has_ignore_pragma(Inv), |
| 632 | | add_message(bmachine,'Ignoring Invariant: ',Inv,Inv). |
| 633 | | |
| 634 | | number_of_ignored_invariants(Nr) :- findall(I,b_nth1_invariant_is_ignored(I),Nrs),length(Nrs,Nr). |
| 635 | | |
| 636 | | b_nth1_non_ignored_invariant(Nr,Invariant,UsedIds) :- |
| 637 | ? | b_nth1_invariant(Nr,Invariant,UsedIds), |
| 638 | | \+ b_nth1_invariant_is_ignored(Nr). |
| 639 | | |
| 640 | | % get a list of non-ignored invariants |
| 641 | | :- public b_invariant_number_list_calc/1. |
| 642 | | b_invariant_number_list_calc(InvList) :- |
| 643 | | findall(nth1_invariant(Nr),(b_nth1_non_ignored_invariant(Nr,_,_)), InvList). |
| 644 | | |
| 645 | | |
| 646 | | |
| 647 | | % use proof information to compute subset of invariant that needs to be checked for operations |
| 648 | | |
| 649 | | :- use_module(probsrc(bit_sets),[ordlist_to_bitset/2, member_bitset/2, empty_bit_set/1]). |
| 650 | | |
| 651 | | % one fact including the position of all unproven invariants |
| 652 | | :- public b_specialized_invariant_mask_for_op_calc/2. |
| 653 | | b_specialized_invariant_mask_for_op_calc(Event,MaskInteger) :- |
| 654 | | preferences:get_preference(use_po,true), |
| 655 | | get_invariant_list_with_used_ids(IL,IL_Ids), |
| 656 | | % Note: we can have interference with CSE here, as lazy_let_pred at top-level can merge several conjuncts (but CSE is now disabled for the invariant if PROOF_INFO = TRUE) |
| 657 | | IL \= [], % otherwise: Invariant already trivial; no sense in keeping track of information |
| 658 | ? | get_op_or_init_and_syntax_filter(Event,ProofInfoEventName,IL,IL_Ids,RIL), |
| 659 | | exclude(is_proven_invariant(ProofInfoEventName),RIL,RL), % Warning !! The invariants are not all from Model; the discharged information could be for a proven invariant with the same label from another model, see examples/EventBPrologPackages/ProofDirected/TestR_label_reuse.eventb; this should now properly be dealt with by filter_proven_invariants |
| 660 | | IL\=RL, /* something filtered out */ |
| 661 | | (RL=[] |
| 662 | | -> Mask = [] % fully proven |
| 663 | | ; findall(Nr,(nth1(Nr,IL,Inv), |
| 664 | | \+ b_nth1_invariant_is_ignored(Nr), % check invariant not ignored with prob-ignore |
| 665 | | member(Inv,RL)),Mask) |
| 666 | | ), |
| 667 | | ordlist_to_bitset(Mask,MaskInteger), |
| 668 | | debug_println(9,b_specialized_invariant_mask_for_op(Event,Mask,MaskInteger)). |
| 669 | | % if number of invariants less than 60 bits we could use integers and bit operators |
| 670 | | % ordlist_to_bitset |
| 671 | | |
| 672 | | % TODO: investigate whether we should pre-compute this or simply re-compute it as needed |
| 673 | | :- public b_specialized_invariant_for_op_calc/2. |
| 674 | | b_specialized_invariant_for_op_calc(Event,Invariant) :- |
| 675 | ? | b_specialized_invariant_mask_for_op(Event,Mask), |
| 676 | | findall(Inv,(member_bitset(Nr,Mask),b_nth1_non_ignored_invariant(Nr,Inv,_)),RL), |
| 677 | | conjunct_predicates(RL,Invariant). %, print(simplified),nl,translate:print_bexpr(Invariant),nl. |
| 678 | | |
| 679 | | |
| 680 | | get_op_or_init_and_syntax_filter('$initialise_machine','INITIALISATION',IL,_,IL). % INIT always sets all variables |
| 681 | | get_op_or_init_and_syntax_filter(Event,Event,IL,IL_Ids,RIL) :- |
| 682 | ? | b_is_operation_name(Event), |
| 683 | | filter_syntactically_relevant_invariants(IL,IL_Ids,Event,RIL). % filter out all invariants not modified by Event |
| 684 | | |
| 685 | | :- public b_operation_preserves_invariant_calc/2. |
| 686 | | % check if an operation preserves the full invariant; according to proof information |
| 687 | | b_operation_preserves_invariant_calc(Event,Preserved) :- |
| 688 | ? | b_specialized_invariant_mask_for_op(Event,Mask), |
| 689 | | (empty_bit_set(Mask) -> Preserved=full_invariant ; Preserved=partial_invariant). |
| 690 | | |
| 691 | | b_operation_preserves_full_invariant(Op) :- b_specialized_invariant_mask_for_op(Op,BS), empty_bit_set(BS). |
| 692 | | |
| 693 | | :- public get_proven_invariant_calc/2. |
| 694 | | % computes proven, relevant invariants (not trivial ones which are unaffected by Event) for main model |
| 695 | | get_proven_invariant_calc(Event, Invariant) :- |
| 696 | | preferences:get_preference(use_po,true), |
| 697 | | b_machine_name(Model), |
| 698 | | get_invariant_list_with_used_ids(IL,IL_Ids), |
| 699 | ? | b_is_operation_name(Event), |
| 700 | | %print(filter_syntactically_relevant_invariants(Event,Model)),debug:nl_time, |
| 701 | | filter_syntactically_relevant_invariants(IL,IL_Ids,Event,RIL), |
| 702 | | %print(select_proven_invariants(Event,Model)),debug:nl_time, |
| 703 | | select_proven_invariants(RIL,Model,Event,RL), |
| 704 | | %print(conjunct_predicates(Event,Model)),debug:nl_time, |
| 705 | | conjunct_predicates(RL,Invariant). |
| 706 | | |
| 707 | | get_invariant_list_with_used_ids(IL2,IL_Ids2) :- |
| 708 | | b_get_invariant_from_machine(I), |
| 709 | | conjunction_to_list_with_rodin_labels(I,IL), |
| 710 | | maplist(find_id_uses_for_maplist,IL,IL_Ids), |
| 711 | | (enable_merge_invariants |
| 712 | | -> merge_invariants(IL,IL_Ids,IL2,IL_Ids2) |
| 713 | | ; IL2=IL, IL_Ids2 = IL_Ids |
| 714 | | ). |
| 715 | | |
| 716 | | find_id_uses_for_maplist(Inv,IDs) :- find_identifier_uses(Inv,[],IDs). |
| 717 | | |
| 718 | | % merge invariants which have the same read identifiers: |
| 719 | | % they can be grouped for operation caching and for proof directed info relying just on syntactic read-info |
| 720 | | % Sorting prevents a danger of a quadratic complexity, see B/PerformanceTests/Generated/Generated10000.mch |
| 721 | | merge_invariants(IL,IL_Ids,IL2,IL_Ids2) :- |
| 722 | | start_ms_timer(T1), |
| 723 | | split_inv_list_wd(IL,IL_Ids,false,WDInv, NonWDInv), |
| 724 | | merge_wd_inv(NonWDInv,IL1, IL_Ids1, [], []), % merge consecutive IL1 non-wd invariants with same ids |
| 725 | | sort(WDInv,SWDInv), % sort according to identifiers |
| 726 | | % Note: we could also simply allow re-ordering all invariants |
| 727 | | % this is not a significant issue: if the other invariant is false we will generate an error anyway |
| 728 | | % we would only generate a WD error where previously we only reported an invariant violation |
| 729 | | merge_wd_inv(SWDInv,IL2, IL_Ids2, IL1, IL_Ids1), |
| 730 | | (debug_mode(on), length(IL,L0),length(IL2,L2) %, L0 \= L2 |
| 731 | | -> stop_ms_walltimer_with_msg(T1,'Merging Invariants (before,after)='(L0,L2)) |
| 732 | | ; true). |
| 733 | | |
| 734 | | % split invariants into WD ones and those with WD condition |
| 735 | | split_inv_list_wd([],[], _, [],[]). |
| 736 | | split_inv_list_wd([Inv1|T],[Ids1|TI], PreventMove, WDInv, NonWDInv) :- |
| 737 | | (PreventMove=false, |
| 738 | | always_well_defined(Inv1) |
| 739 | | -> WDInv = [inv(Ids1,Inv1)|TWDInv], split_inv_list_wd(T,TI, PreventMove, TWDInv, NonWDInv) |
| 740 | | ; NonWDInv = [inv(Ids1,Inv1)|TNonWDInv], |
| 741 | | get_preference(find_abort_values,PreventMove2), % false, true, full |
| 742 | | % Note: we could check allow_improving_wd_mode/ disprover_mode |
| 743 | | % see test 1290; we move 1=2 before potential WD issue; also test 1707 |
| 744 | | split_inv_list_wd(T,TI, PreventMove2, WDInv,TNonWDInv) |
| 745 | | ). |
| 746 | | |
| 747 | | % expand and merge wd invariants: |
| 748 | | merge_wd_inv([], I, II, I, II). |
| 749 | | merge_wd_inv([inv(Ids1,Inv1)|T], InvList, IDList, EndInv, EndIds) :- % see keyclumps |
| 750 | | merge_wd_inv_aux(T, Ids1, [Inv1], InvList,IDList, EndInv, EndIds). |
| 751 | | |
| 752 | | merge_wd_inv_aux([], Ids1, CList, [Inv1|EndInv],[Ids1|EndIds], EndInv, EndIds) :- |
| 753 | | reverse(CList, RCI), conjunct_predicates(RCI,Inv1). |
| 754 | | merge_wd_inv_aux([inv(Ids1,Inv2)|T], Ids1, CList, InvList, IDList, EndInv, EndIds) :- !, |
| 755 | | % same Ids1: merge with previous invariants |
| 756 | | merge_wd_inv_aux(T, Ids1, [Inv2|CList], InvList, IDList, EndInv, EndIds). |
| 757 | | merge_wd_inv_aux([inv(Ids2,Inv2)|T], Ids1, CList, [Inv1|TI],[Ids1|TII], EndInv, EndIds) :- % new identifiers; |
| 758 | | reverse(CList, RCI), conjunct_predicates(RCI,Inv1), % generate previous invariant over Ids1 |
| 759 | | (debug_level_inactive_for(19) -> true |
| 760 | | ; write('MERGING INVARIANTS: '),translate:print_bexpr_with_limit(Inv1,1000),nl), |
| 761 | | merge_wd_inv_aux(T,Ids2, [Inv2], TI, TII, EndInv, EndIds). % start new invariant group with [Inv2] |
| 762 | | |
| 763 | | :- use_module(specfile,[eventb_mode/0]). |
| 764 | | enable_merge_invariants :- get_preference(use_po,true), !, |
| 765 | ? | \+ eventb_mode. % we do not group by proof info below and we could loose precision in discharged info |
| 766 | | enable_merge_invariants :- |
| 767 | | get_preference(operation_reuse_setting,true), get_preference(try_operation_reuse_for_invariants,true). |
| 768 | | |
| 769 | | |
| 770 | | |
| 771 | | % get list of invariants with proof info (discharged(_)) added |
| 772 | | % called by bvisual2 |
| 773 | | get_invariant_list_with_proof_info(InvariantList) :- |
| 774 | | findall(I,get_invariant_with_proof_status_calc(I,_),InvariantList). |
| 775 | | |
| 776 | | :- use_module(probsrc(tools_lists),[count_occurences/2]). |
| 777 | | |
| 778 | | % compute all invariants which are not fully proven for events (initialisation is now examined!): |
| 779 | | % used by ltsmin |
| 780 | | get_unproven_invariants(UnProvenList) :- |
| 781 | | findall(I,get_invariant_with_proof_status_calc(I,unproven),UnProvenList). |
| 782 | | |
| 783 | | get_invariant_with_proof_status_calc(Invariant,Proven) :- % not precompiled at the moment |
| 784 | | b_machine_name(Model), |
| 785 | | b_get_invariant_from_machine(I), |
| 786 | | conjunction_to_list_with_rodin_labels(I,IL), % ensure rodin labels are propagated down for proof info |
| 787 | ? | member(Inv,IL), |
| 788 | | find_id_uses_for_maplist(Inv,IDs), |
| 789 | | findall(Status,invariant_proof_status_for_event(Inv,IDs,Model,_Event,Status),StatusList), |
| 790 | | count_occurences(StatusList,Occs), |
| 791 | | (member(unproven-_,Occs) |
| 792 | | -> Proven=unproven |
| 793 | | ; (debug_level_active_for(19) -> print('INVARIANT proven for all events: '), translate:print_bexpr(Inv),nl ; true), |
| 794 | | Proven=proven |
| 795 | | ), |
| 796 | | add_texpr_info_if_new(Inv,proof_status(Proven,Occs),Invariant). |
| 797 | | |
| 798 | | %is_unproven_inv_for_model(_Invariant,_Model,_Event) :- |
| 799 | | % preferences:get_preference(use_po,false),!. % information is used in bvisual2,... |
| 800 | | invariant_proof_status_for_event(Invariant,InvIds,Model,Event,Status) :- |
| 801 | ? | (b_is_operation_name(Event) ; Event='INITIALISATION'), |
| 802 | | proof_status_for_inv2(Invariant,InvIds,Model,Event,Status). |
| 803 | | |
| 804 | | proof_status_for_inv2(Invariant,InvIds,_,Event,unchanged) :- |
| 805 | | \+ is_syntactically_relevant_invariant_for_event(Event,Invariant,InvIds), |
| 806 | | !. % invariant unaffected by Event/Operation |
| 807 | | proof_status_for_inv2(Invariant,_,Model,Event,proven) :- |
| 808 | ? | is_proven_invariant_for_model(Model,Event,Invariant),!. |
| 809 | | proof_status_for_inv2(_,_,_,_,unproven). |
| 810 | | |
| 811 | | |
| 812 | | % filter_syntactically_relevant_invariants(+InvariantsList, +UsedIDs, +EventName, -RelevantItemsFromInvariantsList) |
| 813 | | filter_syntactically_relevant_invariants(Invariants,IL_Ids,Event,Result) :- |
| 814 | | get_operation_info(Event,SubstitutionInfo), |
| 815 | | get_modifies_from_info(SubstitutionInfo,SortedModIds), |
| 816 | | filter_syntactically_relevant_invariants2(Invariants,IL_Ids,SortedModIds,Result). |
| 817 | | % noticeably faster than include, see e.g. public_examples/B/PerformanceTests/Generated/Generated4000.mch |
| 818 | | %include(is_syntactically_relevant_inv(SortedModIds),Invariants,IL_Ids,Result). |
| 819 | | |
| 820 | | is_syntactically_relevant_inv(SortedModIds,_Inv,IDs) :- |
| 821 | | ord_intersect(SortedModIds,IDs). |
| 822 | | |
| 823 | | filter_syntactically_relevant_invariants2([],_,_,[]). |
| 824 | | filter_syntactically_relevant_invariants2([Inv|T],[IDs|TI],SortedModIds,R) :- |
| 825 | | (is_syntactically_relevant_inv(SortedModIds,Inv,IDs) |
| 826 | | -> R=[Inv|TR] ; R=TR), |
| 827 | | filter_syntactically_relevant_invariants2(T,TI,SortedModIds,TR). |
| 828 | | |
| 829 | | is_syntactically_relevant_invariant_for_event('INITIALISATION',_Inv,_) :- |
| 830 | | !. % we assume that all invariants need to be checked after the INITIALISATION |
| 831 | | is_syntactically_relevant_invariant_for_event(Event,Inv,IDs) :- |
| 832 | | get_operation_info(Event,SubstitutionInfo),!, |
| 833 | | get_modifies_from_info(SubstitutionInfo,SortedModIds), |
| 834 | | is_syntactically_relevant_inv(SortedModIds,Inv,IDs). |
| 835 | | is_syntactically_relevant_invariant_for_event(Event,_Inv,_) :- |
| 836 | | add_error(bmachine,'Unknown event: ',Event). |
| 837 | | |
| 838 | | get_modifies_from_info(SubstitutionInfo,SortedModIds) :- |
| 839 | | ((memberchk(modifies(ModID),SubstitutionInfo) |
| 840 | | -> ground(ModID) ; add_warning(bmachine,'Non-ground modifies information',ModID,SubstitutionInfo), fail) |
| 841 | | -> list_to_ord_set(ModID,SortedModIds) % should not be necessary |
| 842 | | ; add_warning(bmachine,'No modifies information available','',SubstitutionInfo), |
| 843 | | SortedModIds=[]). |
| 844 | | |
| 845 | | % filter_proven_invariants(+InvariantsList, +ModelName, +EventName, -RelevantItemsFromInvariantsList) |
| 846 | | % this gets called during model checking time |
| 847 | | is_proven_invariant(Event,E) :- |
| 848 | | % print('Filter Check: '), print(Event), print(' : '),translate:print_bexpr(E),nl, |
| 849 | | get_precise_rodin_model_and_name(E,Model,Name), |
| 850 | | !, |
| 851 | ? | discharged_invariant(Model,Name,Event), |
| 852 | | % now check that if E is not always well-defined that there are no unproven WD proof obligations ! |
| 853 | | check_wd_discharged_inv_or_thm(E,Model,Name,Event). %% print('DISCHARGED'(Model,Event,Name)),nl. |
| 854 | | |
| 855 | | check_wd_discharged_inv_or_thm(E,_,_,_) :- always_well_defined(E),!. |
| 856 | | check_wd_discharged_inv_or_thm(_,Model,Name,_Event) :- wd_po(Model,Name,ProofStatus),!, |
| 857 | | ProofStatus=true. |
| 858 | | check_wd_discharged_inv_or_thm(_,Model,Name,Event) :- |
| 859 | | % no WD_PO associated or stored |
| 860 | | % TO DO: we could try ProB-WD prover; but this situation only happens with old-style exports; we could use add_message |
| 861 | | format('% Assuming invariant/theorem ~w is well-defined for event ~w:~w (no WD PO found).~n',[Name,Model,Event]). |
| 862 | | |
| 863 | | % select_proven_invariants(+InvariantsList, +ModelName, +EventName, -RelevantItemsFromInvariantsList) |
| 864 | | select_proven_invariants(Invariants,Model,Event,Result) :- |
| 865 | | include(is_proven_invariant_for_model(Model,Event),Invariants,Result). |
| 866 | | |
| 867 | | % Note: different from is_proven_invariant; TO DO: merge (here we assume main model) |
| 868 | | is_proven_invariant_for_model(MainModel,Event,E) :- |
| 869 | | get_precise_rodin_name(E,Name), % if we do not have a rodin position we consider this as not proved |
| 870 | | (get_rodin_model_name(E,Model) -> true |
| 871 | | ; debug_format(19,'Could not get Rodin model name for invariant (deprecated .eventb format): ~w~n',[Name]), |
| 872 | | Model=MainModel, |
| 873 | | fail % we have an old style .eventb file; safer to assume not proven as there can be clashes of labels |
| 874 | | ), |
| 875 | ? | discharged_invariant(Model,Name,Event). |
| 876 | | |
| 877 | | is_discharged_assertion(Theorem) :- |
| 878 | | if( get_precise_rodin_model_and_name(Theorem,Model,Name), |
| 879 | | (discharged_theorem(Model,_,Name), % does not matter if invariant or axiom |
| 880 | | check_wd_discharged_inv_or_thm(Theorem,Model,Name,assertion) ) % check that well-defined |
| 881 | | , (animation_minor_mode(eventb), |
| 882 | | (silent_mode(on) -> true |
| 883 | | ; print('Could not get position information for theorem: '), |
| 884 | | translate:print_bexpr(Theorem),nl, |
| 885 | | get_texpr_pos(Theorem,POS),debug_println(19,get_texpr_pos(POS)) |
| 886 | | ), |
| 887 | | fail) |
| 888 | | ). |
| 889 | | |
| 890 | | get_precise_rodin_model_and_name(Theorem,Model,Name) :- |
| 891 | | get_texpr_pos(Theorem,Pos), |
| 892 | | (Pos = rodinpos(Model,Name,_) |
| 893 | | -> true % only accept new rodinpos information with three parameters ! |
| 894 | | % the old one with two parameters could lead to confusion as labels can be reused |
| 895 | | % we also do not accept rodin_derived_context_pos(Model,_Context,Name); not sure if this would be sound |
| 896 | | ). |
| 897 | | |
| 898 | | % derived predicate |
| 899 | | discharged_invariant(Model,InvariantName,Event) :- |
| 900 | | % InvariantName from model Model is preserved by Event and any of its refinements |
| 901 | | discharged(Model,Event,InvariantName). |
| 902 | | discharged_invariant(Model,InvariantName,Event) :- |
| 903 | | % InvariantName from model Model is preserved by Event and any of its refinements |
| 904 | | also_discharged(Model,Event,InvariantName). |
| 905 | | |
| 906 | | b_machine_has_proven_invariants :- |
| 907 | | (discharged(_,_,_) -> true). |
| 908 | | |
| 909 | | % complete the discharged/3 information: propagating information from abstract events |
| 910 | | % down to refined top-level events |
| 911 | | :- public complete_discharged_info/0. |
| 912 | | :- public complete_discharged_info_calc/0. |
| 913 | | complete_discharged_info_calc :- debug_println(4,'completing discharged info: '), |
| 914 | | statistics(runtime,[Start,_]), |
| 915 | | (complete_discharged_info2 -> true ; true), |
| 916 | | statistics(runtime,[Stop,_]), T is Stop-Start, debug_print(4,T), debug_println(4,' ms'). |
| 917 | | :- volatile discharged2/2, also_discharged/3. |
| 918 | | :- dynamic discharged2/2. |
| 919 | | :- dynamic also_discharged/3. |
| 920 | ? | discharged_info_exists :- discharged2(_,_),!. |
| 921 | | complete_discharged_info2 :- retractall(also_discharged(_,_,_)), |
| 922 | | retractall(discharged2(_,_)), |
| 923 | ? | discharged(Model,Event,_), % find out which Model and Events are used in discharged info |
| 924 | | \+ discharged2(Model,Event), %print(discharged(Model,Event)),nl, |
| 925 | | assertz(discharged2(Model,Event)),fail. |
| 926 | | complete_discharged_info2 :- discharged_info_exists, |
| 927 | | b_get_animated_sections(Sections), |
| 928 | ? | discharged2(Model,Event), % Event in Model was proven to preserve an invariant in Model |
| 929 | | b_get_abstract_events(Event,RModel,AbstractEvents), % search for a refinement of Model where the same event exists |
| 930 | | RModel \= Model, |
| 931 | | % i.e., invariant Name was proven in an abstract Model for Event |
| 932 | | \+ is_abstract_event_in_list(Event,Model,AbstractEvents), % this event is *NOT* a refinement of the proven one |
| 933 | | debug_println(4,removing_discharged(Model,Event)), |
| 934 | | retractall(discharged(Model,Event,_Name)), |
| 935 | | member(model(Model),Sections), % only generate error message if the Model is also animated using b_get_animated_sections, see example EventBPrologPackages/ProofDirected/TestInvPreserv_M2_ko_mch.eventb |
| 936 | | % (otherwise the refinement may well exist but has been filtered out by restricting the animation levels) |
| 937 | | add_error(event_refinement,'An event does not refine an abstract event of the same name: ',Event:Model:RModel), |
| 938 | | % This will could cause errors in the proof information usage ! |
| 939 | | %print(AbstractEvents),nl, |
| 940 | | fail. |
| 941 | | complete_discharged_info2 :- discharged_info_exists, |
| 942 | | complete_discharged_info3(_Model,_Event,_Name). |
| 943 | | complete_discharged_info3(InvNameModel,AbsEvent,Name) :- |
| 944 | ? | b_get_abstract_events(EventInRefinement,_RefModel,AbstrEvents), |
| 945 | ? | is_abstract_event_in_list(AbsEvent,InvNameModel,AbstrEvents), % Event in InvNameModel is an abstract event of EventInRefinement |
| 946 | | %print(check(InvNameModel,Event, EventInRefinement,RefModel)),nl, |
| 947 | | discharged(InvNameModel,AbsEvent,Name), % print(chck2(Model,Event,Name)),nl, |
| 948 | | %InvNameModel:Name has been proven for AbsEvent *at all relevant* levels |
| 949 | | \+ discharged(InvNameModel,EventInRefinement,Name), |
| 950 | | \+ also_discharged(InvNameModel,EventInRefinement,Name), |
| 951 | | % this invariant has not yet been marked as proven for EventInRefinement |
| 952 | | debug_println(4,also_discharged_in_refinement(InvNameModel:Name,EventInRefinement,refined_from(AbsEvent))), |
| 953 | | assertz(also_discharged(InvNameModel,EventInRefinement,Name)), |
| 954 | | fail. |
| 955 | | |
| 956 | | %abstract_event_of_calc(TopLevelEvent,RModel,Event,Model) :- |
| 957 | | % b_get_abstract_events(TopLevelEvent,RModel,AbstrEvents), |
| 958 | | % is_abstract_event_in_list(Event,Model,AbstrEvents) , print(abs(TopLevelEvent,RModel,Event,Model)),nl. |
| 959 | | |
| 960 | | is_abstract_event_in_list(Event,Model,AbstractEvents) :- |
| 961 | | member(b(rlevent(AEvent,AModel,_S,_P,_G,_Thm,_Act,_VW,_PW,_Unm,AbstractEvents2),_,_),AbstractEvents), |
| 962 | | (Event=AEvent, Model=AModel; |
| 963 | | is_abstract_event_in_list(Event,Model,AbstractEvents2)). |
| 964 | | |
| 965 | | % get events that are refined by an event |
| 966 | | b_get_abstract_events(Name,Section,AbsEvents) :- |
| 967 | ? | b_get_machine_operation(Name,_R,_P,Body,_OType,_OpPos), |
| 968 | | get_texpr_expr(Body,RLEVENT), |
| 969 | | RLEVENT = rlevent(_Name,Section,_Stat,_Parameters,_Grd,_Thm,_Act,_VWit,_PWit,_Unmod,AbsEvents). |
| 970 | | |
| 971 | | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 972 | | |
| 973 | | :- volatile b_operation_reads_output_variables/3, b_operation_cannot_modify_state/1. |
| 974 | | :- dynamic b_operation_reads_output_variables/3, b_operation_cannot_modify_state/1. |
| 975 | | |
| 976 | | % test if we have a query or skip operation which cannot modify the state |
| 977 | | % (preconditions, assertions could still fail though !) |
| 978 | | :- public b_operation_cannot_modify_state_calc/1. |
| 979 | | b_operation_cannot_modify_state_calc(Event) :- |
| 980 | ? | b_get_operation_normalized_read_write_info(Event,_ReadVariables,[]). |
| 981 | | |
| 982 | | :- use_module(b_read_write_info, [get_accessed_vars/4]). |
| 983 | | % check if classical B operation reads its output variables |
| 984 | | :- public b_operation_reads_output_variables_calc/3. |
| 985 | | b_operation_reads_output_variables_calc(Event,ReadOutputVariablesIds,ReadOutputTypedInfo) :- |
| 986 | ? | b_get_machine_operation(Event,ResultTuple,_TParas,TBody,_OType,_Pos), |
| 987 | | def_get_texpr_ids(ResultTuple,ResIds), |
| 988 | | sort(ResIds,SResIds), |
| 989 | | get_operation_info(Event,SubstitutionInfo), |
| 990 | ? | member(reads_locals(Reads),SubstitutionInfo), % locals are either arguments or return output variables |
| 991 | | % TODO: we could use read_output_positions info |
| 992 | | ord_intersection(Reads,SResIds,ReadOutputVariablesIds), |
| 993 | | ReadOutputVariablesIds \= [], |
| 994 | | % now recompute the information based on TBody after ast_cleanup: typing predicates have been removed |
| 995 | | get_accessed_vars(TBody,[],_,AllReadsAfterAstCleanup), % important to pass [] as local variables |
| 996 | | ord_intersection(AllReadsAfterAstCleanup,ReadOutputVariablesIds,ReadOutputVariablesIds2), |
| 997 | | ReadOutputVariablesIds2 \= [], |
| 998 | | (get_preference(allow_operations_to_read_outputs,true), debug_mode(off) -> true |
| 999 | | ; ajoin(['Operation ', Event, ' is possibly reading or not always assigning to output parameters: '],Msg), |
| 1000 | | add_message(bmachine,Msg,ReadOutputVariablesIds2,ResultTuple) |
| 1001 | | % Note: analysis is not always precise: /public_examples/B/NewSyntax/CallOperationInExprSimple2.mch |
| 1002 | | ), |
| 1003 | | findall(reads_result(Index,ID,Type), |
| 1004 | | (nth1(Index,ResultTuple,b(identifier(ID),Type,_)), ord_member(ID,ReadOutputVariablesIds2)), |
| 1005 | | ReadOutputTypedInfo). |
| 1006 | | |
| 1007 | | |
| 1008 | | |
| 1009 | | :- volatile b_get_operation_normalized_read_write_info/3, b_get_operation_unchanged_variables/2. |
| 1010 | | :- dynamic b_get_operation_normalized_read_write_info/3, b_get_operation_unchanged_variables/2. |
| 1011 | | |
| 1012 | | |
| 1013 | | :- use_module(b_global_sets,[exclude_global_identifiers/2]). |
| 1014 | | |
| 1015 | | :- public b_get_operation_normalized_read_write_info_calc/3. |
| 1016 | | /* compute Read and Written Variables by an operation */ |
| 1017 | | b_get_operation_normalized_read_write_info_calc(Event,SortedReadVariables,SortedWrittenVariables) :- |
| 1018 | | % Note: find identifier uses was called before global sets precompiled |
| 1019 | ? | get_operation_info(Event,SubstitutionInfo), |
| 1020 | | (memberchk(modifies(WrittenVariables),SubstitutionInfo) |
| 1021 | | -> list_to_ord_set(WrittenVariables,SWV), % normally not necessary; just to be sure |
| 1022 | | exclude_global_identifiers(SWV,SortedWrittenVariables) |
| 1023 | | ; print(no_modifies_info(Event)),nl,fail), |
| 1024 | | (memberchk(reads(ReadVariables),SubstitutionInfo) |
| 1025 | | -> sort(ReadVariables,SWR), |
| 1026 | | exclude_global_identifiers(SWR,SortedReadVariables) |
| 1027 | | ; debug_println(9,no_reads_info(Event)),fail). % happens currently in Event-B ! |
| 1028 | | %% , print(read_write_set(Event,ReadVariables,WrittenVariables)),nl. |
| 1029 | | |
| 1030 | | :- public b_get_operation_unchanged_variables_calc/2. |
| 1031 | | b_get_operation_unchanged_variables_calc(Event,UnchangedVariables) :- |
| 1032 | | b_get_machine_variables(TVars), |
| 1033 | | def_get_texpr_ids(TVars,V), |
| 1034 | | sort(V,SAllVars), |
| 1035 | ? | b_get_operation_normalized_read_write_info(Event,_,WrittenVars), |
| 1036 | | ord_subtract(SAllVars,WrittenVars,UnchangedVariables). |
| 1037 | | |
| 1038 | | |
| 1039 | | |
| 1040 | | :- volatile b_get_operation_non_det_modifies/2. |
| 1041 | | :- dynamic b_get_operation_non_det_modifies/2. |
| 1042 | | :- public b_get_operation_non_det_modifies_calc/2. |
| 1043 | | :- use_module(b_read_write_info,[get_nondet_modified_vars/3]). |
| 1044 | | % determine which variables are non-deterministically written by an operation |
| 1045 | | % note: this can depend on the parameters, hence show_eventb_any_arguments is relevant |
| 1046 | | b_get_operation_non_det_modifies_calc(OpName,NonDetModifies) :- |
| 1047 | ? | b_get_machine_operation_for_animation(OpName,Results,Parameters,Body), |
| 1048 | | append(Results,Parameters,TLocalVars), |
| 1049 | | get_texpr_ids(TLocalVars,LocalVars), |
| 1050 | | get_nondet_modified_vars(Body,LocalVars,NonDetModifies). |
| 1051 | | b_get_operation_non_det_modifies_calc('$initialise_machine',NonDetModifies) :- |
| 1052 | | b_get_initialisation_from_machine(Body,_), |
| 1053 | | get_nondet_modified_vars(Body,[],NonDetModifies),debug_println(19,init_not_det_modifies(NonDetModifies)). |
| 1054 | | |
| 1055 | | |
| 1056 | | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1057 | | |
| 1058 | | |
| 1059 | | :- volatile b_get_all_used_filenames/1, b_get_main_filename/1, b_get_main_filenumber/1. |
| 1060 | | :- dynamic b_get_all_used_filenames/1. % can be used, e.g., for second argument of pos info field |
| 1061 | | :- dynamic b_get_main_filename/1. % can be used in above list; there is also specfile:currently_opened_file |
| 1062 | | :- dynamic b_get_main_filenumber/1. % the number of the main_file in the b_get_all_used_filenames list (useful for pos information) |
| 1063 | | b_get_all_used_filenames([]). |
| 1064 | | |
| 1065 | | % add an additional filename and obtain its number |
| 1066 | | add_additional_filename(Filename,ResNr) :- functor(Filename,unknown,_),!, |
| 1067 | | format('Unknown additional filename: ~w~n',[Filename]), |
| 1068 | | ResNr = -1. |
| 1069 | | add_additional_filename(Filename,ResNr) :- |
| 1070 | | b_get_all_used_filenames(Fs), |
| 1071 | | nth1(Nr,Fs,Filename),!, |
| 1072 | | ResNr=Nr. |
| 1073 | | add_additional_filename(Filename,ResNr) :- |
| 1074 | | retract(b_get_all_used_filenames(Fs)), |
| 1075 | | length(Fs,Len), |
| 1076 | | append(Fs,[Filename],NewFs), |
| 1077 | | assert(b_get_all_used_filenames(NewFs)), |
| 1078 | | ResNr is Len+1, |
| 1079 | | format('Registering new filename ~w with number ~w~n',[Filename,ResNr]). |
| 1080 | | |
| 1081 | | % add additional filename and add as default for parsercalls |
| 1082 | | set_additional_filename_as_parsing_default(Filename,NewNr,OldNr) :- |
| 1083 | | add_additional_filename(Filename,NewNr), |
| 1084 | | set_default_filenumber(NewNr,OldNr). |
| 1085 | | reset_filename_parsing_default(NewNr,OldNr) :- % reset default filenumber back |
| 1086 | | reset_default_filenumber(NewNr,OldNr). |
| 1087 | | |
| 1088 | | b_load_machine_from_file(Filename) :- b_load_machine_from_file(Filename,[]). |
| 1089 | | b_load_machine_from_file(Filename,Options) :- |
| 1090 | | (debug_mode(on) |
| 1091 | | -> get_parser_version(Version), |
| 1092 | | format('Java Parser Version: ~w~n',[Version]) % used to be called unconditionally to be sure to catch error if java or BParser.jar not available; but now we do not want the Java startup time unless really necessary |
| 1093 | | ; true), |
| 1094 | | b_reset_filenames_and_numbers, |
| 1095 | | debug_stats(loading(Filename)), |
| 1096 | | catch(load_b_machine_as_term(Filename,Machine,Options), |
| 1097 | | parse_errors(Errors), |
| 1098 | | (add_all_perrors_in_context_of_used_filenames(Errors,parse_error,error),fail)), |
| 1099 | | b_load_machine_from_term(Filename,Machine). |
| 1100 | | |
| 1101 | | |
| 1102 | | % add parse errors in context of current machine and its filenames |
| 1103 | | add_all_perrors_in_context_of_used_filenames(Errors,TypeOfError,ErrOrWarn) :- Errors\=[], |
| 1104 | | b_get_all_used_filenames(Filenames), Filenames \= [], |
| 1105 | | !, |
| 1106 | | add_all_perrors(Errors,Filenames,TypeOfError,ErrOrWarn). |
| 1107 | | add_all_perrors_in_context_of_used_filenames(Errors,TypeOfError,ErrOrWarn) :- |
| 1108 | | (Errors=[] -> true ; debug_println(19,'Unable to obtain filenames for parse errors, probably preparse_error')), |
| 1109 | | add_all_perrors(Errors,[],TypeOfError,ErrOrWarn). |
| 1110 | | |
| 1111 | | |
| 1112 | | % a way to load .prob files directly |
| 1113 | | b_load_machine_probfile(Filename) :- b_load_machine_probfile(Filename,[]). |
| 1114 | | b_load_machine_probfile(Filename,Options) :- b_reset_filenames_and_numbers, |
| 1115 | | load_b_machine_probfile_as_term(Filename,Options,Machine), |
| 1116 | | Machine = complete_machine(_MainName,_,Filenames), |
| 1117 | | Filenames = [BFilename|_], % assume first file is the main file |
| 1118 | | b_load_machine_from_term(BFilename,Machine). |
| 1119 | | |
| 1120 | | |
| 1121 | | % a way to load form a list of Facts which would be found in the .prob file |
| 1122 | | b_load_machine_from_list_of_facts(Filename,ListOfFacts) :- % Filename only used below for find_main_file_name and later to find out about position infos if they are in the main file or not |
| 1123 | | load_b_machine_list_of_facts_as_term(ListOfFacts,Machine), |
| 1124 | | b_load_machine_from_term(Filename,Machine). |
| 1125 | | |
| 1126 | | |
| 1127 | | b_reset_filenames_and_numbers :- |
| 1128 | | set_all_used_filenames([]), |
| 1129 | | retractall(b_get_main_filename(_)), |
| 1130 | | retractall(b_get_main_filenumber(_)), |
| 1131 | | retractall(b_filenumber(_,_,_,_)). |
| 1132 | | |
| 1133 | | set_all_used_filenames(AllFilenames) :- |
| 1134 | | retractall(b_get_all_used_filenames(_)), |
| 1135 | | assertz(b_get_all_used_filenames(AllFilenames)). |
| 1136 | | |
| 1137 | | |
| 1138 | | b_load_machine_from_term(Filename,complete_machine(MainName,Machines,Filenames)) :- |
| 1139 | | b_reset_filenames_and_numbers, % call in case we call this predicate directly from outside |
| 1140 | | !, |
| 1141 | | assertz(b_get_main_filename(Filename)), |
| 1142 | | set_all_used_filenames(Filenames), |
| 1143 | | store_filenumbers(Filenames), |
| 1144 | | (find_main_file_name(Nr,Filenames,Filename) -> assertz(b_get_main_filenumber(Nr)) |
| 1145 | | ; ajoin(['Main filename ', Filename, ' does not appear in filenames list: '],Msg), |
| 1146 | | add_warning(bmachine,Msg,Filenames) |
| 1147 | | ), |
| 1148 | | %print(find_main_file_name(Nr,Filenames,Filename)),nl, |
| 1149 | | check_valid_machine_name(MainName), |
| 1150 | | debug_stats(analyse_hierarchy(MainName,Filename)), |
| 1151 | | (rewrite_complete_machine(MainName,Machines,Machines1) -> true ; Machines1 = Machines), |
| 1152 | | (analyse_hierarchy(MainName,Machines1) |
| 1153 | | -> true ; add_error(b_load_machine,'Analyse Hierarchy failed'),fail), |
| 1154 | | debug_stats(type_check(MainName,Filename)), |
| 1155 | | b_set_machine(MainName,Machines1,Errors), % Typechecking |
| 1156 | | debug_stats(checked_machine(MainName,Filename)), |
| 1157 | | add_all_perrors(Errors,Filenames,type_error), % TO DO: use type_check as source as this may also generate warnings |
| 1158 | | no_real_perror_occurred(Errors). |
| 1159 | | b_load_machine_from_term(F,X) :- add_internal_error('Illegal machine: ',b_load_machine_from_term(F,X)), |
| 1160 | | fail. |
| 1161 | | |
| 1162 | | rewrite_complete_machine(MainName,[DefMachine],[NewMachine]) :- |
| 1163 | | DefMachine=definition_file(Pos,Defs), |
| 1164 | | %print(defs(Defs)),nl, |
| 1165 | | % Generate virtual abstract machine when loading a .def DEFINITION file |
| 1166 | | debug_println(19,creating_virtual_abstract_machine_for_definition_file), |
| 1167 | | Header = machine_header(Pos,MainName,[]), |
| 1168 | | NewMachine = abstract_machine(Pos,machine(Pos),Header,[Defs]). |
| 1169 | | |
| 1170 | | check_valid_machine_name(Name) :- atom(Name),atom_codes(Name,Codes), |
| 1171 | | invalid_chars(Invalid), |
| 1172 | ? | (member(C,Codes),ord_member(C,Invalid) |
| 1173 | | -> ajoin(['Machine name ', Name, ' contains illegal character: '],Msg), |
| 1174 | | atom_codes(IChar,[C]), |
| 1175 | | add_warning(bmachine,Msg,IChar) |
| 1176 | | ; true), |
| 1177 | | !. |
| 1178 | | check_valid_machine_name(Name) :- add_internal_error('Illegal machine name:',check_valid_machine_name(Name)). |
| 1179 | | |
| 1180 | | invalid_chars("."). |
| 1181 | | |
| 1182 | | :- use_module(tools_matching,[codes_to_lower_case/2]). |
| 1183 | | find_main_file_name(Nr,_Filenames,File) :- safe_absolute_file_name(File,AF), |
| 1184 | | tools:get_modulename_filename(AF,TAF), tools:get_filename_extension(AF,ExtF), |
| 1185 | | (ExtF = prob |
| 1186 | | -> when(nonvar(EXT), member(EXT,[mch,ref,imp,tla,rmch])) % any machine extension is ok for .prob file |
| 1187 | | ; EXT =ExtF), |
| 1188 | | (b_filenumber(TAF,EXT,Nr,_) -> true |
| 1189 | | ; atom_codes(TAF,TAFCodes), codes_to_lower_case(TAFCodes,Low), |
| 1190 | | b_filenumber(TAF2,EXT,Nr,_), |
| 1191 | | atom_codes(TAF2,C2), codes_to_lower_case(C2,Low) |
| 1192 | | -> ajoin(['Case mis-match between main filename ',TAF,' and stored filename: '],Msg), |
| 1193 | | % can happen on some file-systems which are case-insensitive or when transferring .prob files from one OS to another |
| 1194 | | add_message(bmachine,Msg,TAF2) |
| 1195 | | ). |
| 1196 | | |
| 1197 | | |
| 1198 | | |
| 1199 | | % remember as facts all B filenames, their extension and their number |
| 1200 | | :- volatile b_filenumber/4. |
| 1201 | | :- dynamic b_filenumber/4. |
| 1202 | | store_filenumbers(Filenames) :- retractall(b_filenumber(_,_,_,_)), |
| 1203 | | store_filenumbers(Filenames,1). |
| 1204 | | store_filenumbers([],_). |
| 1205 | | store_filenumbers([H|T],Nr) :- |
| 1206 | | safe_absolute_file_name(H,AbsFname), |
| 1207 | | tools:get_modulename_filename(AbsFname,ModuleName), |
| 1208 | | tools:get_filename_extension(AbsFname,ExtF), |
| 1209 | | assertz(b_filenumber(ModuleName,ExtF,Nr,AbsFname)), |
| 1210 | | debug_println(9,b_filenumber(ModuleName,ExtF,Nr,AbsFname)), |
| 1211 | | N1 is Nr+1, |
| 1212 | | store_filenumbers(T,N1). |
| 1213 | | |
| 1214 | | portray_filenumbers :- |
| 1215 | | format('~w : ~w : ~w (~w)~n',['Nr','ext','Name','Full path']), |
| 1216 | | b_filenumber(ModuleName,ExtF,Nr,AbsFname), |
| 1217 | | format('~w : ~w : ~w (~w)~n',[Nr,ExtF,ModuleName,AbsFname]), |
| 1218 | | fail. |
| 1219 | | portray_filenumbers. |
| 1220 | | |
| 1221 | | :- use_module(tools,[same_file_name/2]). |
| 1222 | | get_machine_file_number(Name,Ext,Nr,File) :- |
| 1223 | ? | if(b_filenumber(Name,Ext,Nr,File), |
| 1224 | | true, |
| 1225 | | (b_filenumber(StoredName,Ext,Nr,File), |
| 1226 | | % on Windows the capitalisation of the stored name maybe different from the name in machine |
| 1227 | | same_file_name(Name,StoredName) |
| 1228 | | )). |
| 1229 | | |
| 1230 | | :- use_module(probsrc(tools),[gen_relative_path/3]). |
| 1231 | | % get the file path of a loaded machine name, relative to main B machine file: |
| 1232 | | b_get_relative_file_name_for_machine(MachName,RelFileName) :- |
| 1233 | | get_machine_file_number(MachName,_Ext,_Nr,File), |
| 1234 | | get_main_file_name_aux(MainFileName), |
| 1235 | | get_parent_directory(MainFileName,Directory), |
| 1236 | | gen_relative_path(File,Directory,RelFileName). |
| 1237 | | |
| 1238 | | :- use_module(tools,[safe_absolute_file_name/3, get_parent_directory/2]). |
| 1239 | | % get an absolute file relative to the main B file |
| 1240 | | b_absolute_file_name_relative_to_main_machine(File,AbsFileName) :- |
| 1241 | | get_main_file_name_aux(MainFileName), |
| 1242 | | get_parent_directory(MainFileName,Directory), |
| 1243 | | % in Jupyter: MainFileName does not exist; SICStus then treats it as a directory |
| 1244 | | safe_absolute_file_name(File,AbsFileName,[relative_to(Directory)]). |
| 1245 | | |
| 1246 | | get_main_file_name_aux(MainFileName) :- b_or_z_mode, !, b_get_main_filename(MainFileName). |
| 1247 | | get_main_file_name_aux(MainFileName) :- xtl_mode, !, xtl_interface:xtl_main_file_name(MainFileName). |
| 1248 | | |
| 1249 | | % call to clear all data stored for machine |
| 1250 | | b_machine_clear :- |
| 1251 | | b_machine_reset, |
| 1252 | | b_reset_filenames_and_numbers. |
| 1253 | | |
| 1254 | | :- use_module(btypechecker,[reset_typechecker/0]). |
| 1255 | | :- use_module(b_global_sets,[b_clear_global_set_type_definitions/0]). |
| 1256 | | :- use_module(bmachine_construction,[reset_bmachine_construction/0]). |
| 1257 | | b_machine_reset :- % print(b_machine_reset),nl, |
| 1258 | | retractall(machine(_,_)), |
| 1259 | | retractall(additional_configuration_machine(_,_)), |
| 1260 | | retractall(discharged_theorem(_,_,_)), |
| 1261 | | retractall(discharged_guard_strengthening(_,_,_,_)), |
| 1262 | | retractall(discharged(_,_,_)), |
| 1263 | | retractall(wd_po(_,_,_)), |
| 1264 | | retractall(also_discharged(_,_,_)), |
| 1265 | | reset_temp_predicate, |
| 1266 | | retractall(b_machine_additional_property(_)), |
| 1267 | | reset_typechecker, |
| 1268 | | b_clear_global_set_type_definitions, |
| 1269 | | reset_bmachine_construction, |
| 1270 | | startup_precompiled. % change so that error messages generated if we call them |
| 1271 | | |
| 1272 | | :- use_module(eventhandling,[register_event_listener/3]). |
| 1273 | | :- register_event_listener(clear_specification,b_machine_clear, |
| 1274 | | 'Reset bmachine facts.'). |
| 1275 | | |
| 1276 | | % :- use_module(library(random)). |
| 1277 | | :- use_module(preferences,[get_preference/2]). |
| 1278 | | |
| 1279 | | |
| 1280 | | |
| 1281 | | |
| 1282 | | % precompiled |
| 1283 | | :- volatile b_machine_name/1. |
| 1284 | | :- dynamic b_machine_name/1. |
| 1285 | | :- public b_machine_name_calc/1. |
| 1286 | | b_machine_name_calc(Name) :- |
| 1287 | | get_full_b_machine(Name,_). |
| 1288 | | |
| 1289 | | b_get_animated_sections(Sections) :- |
| 1290 | | get_section_from_current_machine(meta,MetaInfos), |
| 1291 | | ( member(animated_sections(Sections), MetaInfos) -> true |
| 1292 | | ; add_error(bmachine,'No animated sections available'), fail). |
| 1293 | | |
| 1294 | | :- volatile b_get_named_machine_set/3. |
| 1295 | | :- dynamic b_get_named_machine_set/3. |
| 1296 | | :- public b_get_named_machine_set_calc/3. |
| 1297 | ? | b_get_named_machine_set(Set,Members) :- b_get_named_machine_set(Set,_,Members). |
| 1298 | | % precompiled: all enumerated sets with their elements (all in atomic form) |
| 1299 | | b_get_named_machine_set_calc(Set,TExpr,Members) :- |
| 1300 | | get_section_from_current_machine(enumerated_sets,Sets), |
| 1301 | | get_section_from_current_machine(enumerated_elements,Elems), |
| 1302 | | get_texpr_id(TExpr,Set), |
| 1303 | | get_texpr_type(TExpr,set(Type)), |
| 1304 | | get_texpr_type(TElem,Type), |
| 1305 | ? | member(TExpr,Sets), |
| 1306 | | findall(E, (member(TElem,Elems), get_texpr_id(TElem,E)), Members). |
| 1307 | | |
| 1308 | | :- volatile b_enumerated_sets_precompiled/0. |
| 1309 | | :- dynamic b_enumerated_sets_precompiled/0. |
| 1310 | | :- public b_enumerated_sets_precompiled_calc/0. |
| 1311 | | b_enumerated_sets_precompiled_calc :- |
| 1312 | | b_check_and_precompile_enumerated_sets. |
| 1313 | | |
| 1314 | | :- volatile b_get_machine_set/2. |
| 1315 | | :- dynamic b_get_machine_set/2. |
| 1316 | | :- public b_get_machine_set_calc/2. |
| 1317 | ? | b_get_machine_set(Set) :- b_get_machine_set(Set,_). |
| 1318 | | % precompiled: all deferred and enumerated sets (in atomic form) |
| 1319 | | b_get_machine_set_calc(Set,TExpr) :- |
| 1320 | | get_section_from_current_machine(deferred_sets,Sets), |
| 1321 | | get_texpr_id(TExpr,Set), |
| 1322 | ? | member(TExpr,Sets). |
| 1323 | | b_get_machine_set_calc(Set,TExpr) :- |
| 1324 | ? | b_get_named_machine_set(Set,TExpr,_). |
| 1325 | | |
| 1326 | | :- volatile b_get_machine_constants/1, b_get_machine_all_constants/1, b_get_machine_variables/1, b_get_machine_variables_in_original_order/1, b_is_constant/2, b_is_variable/2, b_get_constant_variable_description/2. |
| 1327 | | :- dynamic b_get_machine_constants/1, b_get_machine_all_constants/1, b_get_machine_variables/1, b_get_machine_variables_in_original_order/1, b_is_constant/2, b_is_variable/2, b_get_constant_variable_description/2. |
| 1328 | | b_machine_has_constants :- b_get_machine_constants([_|_]). |
| 1329 | | :- public b_get_machine_all_constants_calc/1. |
| 1330 | | % precompiled: all constants (abstract and concrete) in typed form |
| 1331 | | b_get_machine_all_constants_calc(AllCsts2) :- |
| 1332 | | findall(C,get_multi_sections([abstract_constants,concrete_constants],C),AllCsts), |
| 1333 | | % now try and infer seq(.) type info for the constants; relevant for test 383 |
| 1334 | | b_get_properties_from_machine(Prop), |
| 1335 | | infer_seq_types_for_tids(AllCsts,Prop,AllCsts2). % TODO: check if a candidate type exists in the constants? |
| 1336 | | |
| 1337 | | :- public b_get_machine_constants_calc/1. |
| 1338 | | % precompiled: all constants (abstract and concrete) in typed form; except for constant_represented inside global set |
| 1339 | | b_get_machine_constants_calc(Csts) :- |
| 1340 | | b_get_machine_all_constants(AllCsts), |
| 1341 | | findall(C, |
| 1342 | | (member(C,AllCsts), get_texpr_id(C,CID), |
| 1343 | | \+ b_get_constant_represented_inside_global_set(CID,_)), % ignore constants detected as enumerated set elements |
| 1344 | | Csts). |
| 1345 | | |
| 1346 | | b_machine_has_variables :- b_get_machine_variables([_|_]). |
| 1347 | | |
| 1348 | | :- public b_get_machine_variables_in_original_order_calc/1. |
| 1349 | | % precompiled: all variables (abstract and concrete) in typed form |
| 1350 | | b_get_machine_variables_in_original_order_calc(Vars) :- |
| 1351 | | findall(V,get_multi_sections([abstract_variables,concrete_variables],V),Vars). |
| 1352 | | |
| 1353 | | :- public b_get_machine_variables_calc/1. |
| 1354 | | % get variables in order suitable for ord_member and optimized update storing |
| 1355 | | b_get_machine_variables_calc(SVars) :- |
| 1356 | | b_get_machine_variables_in_original_order(Vars), |
| 1357 | | sort(Vars,SVars). |
| 1358 | | |
| 1359 | | get_nr_of_machine_variables(Nr) :- b_get_machine_variables(L), length(L,Nr). |
| 1360 | | get_nr_of_machine_constants(Nr) :- b_get_machine_constants(L), length(L,Nr). |
| 1361 | | |
| 1362 | ? | b_is_constant(C) :- b_is_constant(C,_). |
| 1363 | | :- public b_is_constant_calc/2. |
| 1364 | | % precompiled: all constants (abstract and concrete) in atomic form |
| 1365 | | b_is_constant_calc(Cst,Type) :- |
| 1366 | | b_get_machine_constants(Constants), |
| 1367 | | get_texpr_id(Term,Cst), |
| 1368 | | get_texpr_type(Term,Type), |
| 1369 | ? | member(Term,Constants). |
| 1370 | | b_is_variable(V) :- b_is_variable(V,_). |
| 1371 | | :- public b_is_variable_calc/2. |
| 1372 | | % precompiled: all variables (abstract and concrete) in atomic form |
| 1373 | | b_is_variable_calc(Var,Type) :- |
| 1374 | | b_get_machine_variables(Vars), % b_get_machine_variables_in_original_order |
| 1375 | | get_texpr_id(Term,Var), |
| 1376 | | get_texpr_type(Term,Type), |
| 1377 | ? | member(Term,Vars). |
| 1378 | | % look up elements in several sections of the machine |
| 1379 | | get_multi_sections(Sections,Elem) :- |
| 1380 | ? | member(Section,Sections), |
| 1381 | | get_section_from_current_machine(Section,List), |
| 1382 | ? | member(Elem,List). |
| 1383 | | |
| 1384 | | :- public b_get_constant_variable_description_calc/2. |
| 1385 | | % get value of description pragmas @desc for variables and constants: |
| 1386 | | b_get_constant_variable_description_calc(ID,Desc) :- |
| 1387 | | (b_get_machine_constants(L) ; b_get_machine_variables(L)), |
| 1388 | | get_texpr_id(Term,ID), |
| 1389 | ? | member(Term,L), |
| 1390 | | get_texpr_description(Term,TDesc), |
| 1391 | | (simplify_desc(TDesc,Desc) -> true ; TDesc=Desc). |
| 1392 | | |
| 1393 | | :- use_module(probsrc(tools_strings), [atom_prefix/2]). |
| 1394 | | simplify_desc(Compound,R) :- compound(Compound),!, |
| 1395 | | add_error(simplify_desc,'Non-atomic description: ',Compound), |
| 1396 | | R=Compound. |
| 1397 | | simplify_desc(memoize,memo). |
| 1398 | | simplify_desc(memoise,memo). |
| 1399 | | simplify_desc('"memoize"',memo). |
| 1400 | | simplify_desc('"memoise"',memo). |
| 1401 | | simplify_desc('"expand"',expand). |
| 1402 | | simplify_desc('"memo"',memo). % allow /*@desc "memo" */ |
| 1403 | | simplify_desc(Atom,memo) :- atom_prefix('"memo ',Atom). % allow /*@desc "memo ...additional text" */ |
| 1404 | | |
| 1405 | | % check if a constant or variable is annotated for memoization: |
| 1406 | | constant_variable_marked_as_memo(ID) :- b_get_constant_variable_description(ID,memo). |
| 1407 | | |
| 1408 | | % check if a constant or variable is annotated for expansion using @desc expand |
| 1409 | | constant_variable_marked_as_expand(ID) :- b_get_constant_variable_description(ID,EXPAND), EXPAND=expand. |
| 1410 | | |
| 1411 | | |
| 1412 | | :- volatile b_get_invariant_from_machine/1, |
| 1413 | | b_get_linking_invariant_from_machine/1, |
| 1414 | | b_get_properties_from_machine/1, |
| 1415 | | b_get_static_assertions_from_machine/1, |
| 1416 | | b_extract_values_clause_assignment/3, |
| 1417 | | b_get_unproven_static_assertions_from_machine/1, |
| 1418 | | b_get_dynamic_assertions_from_machine/1, |
| 1419 | | b_get_unproven_dynamic_assertions_from_machine/1, |
| 1420 | | b_get_assertions_from_main_machine/2, |
| 1421 | | b_get_initialisation_from_machine/2, |
| 1422 | | b_get_machine_operation/6,b_top_level_operation/1, |
| 1423 | | b_get_machine_operation_for_animation/7, |
| 1424 | | b_is_operation_name/1, |
| 1425 | | b_get_promoted_machine_operations/1. |
| 1426 | | :- dynamic b_get_invariant_from_machine/1, |
| 1427 | | b_get_linking_invariant_from_machine/1, |
| 1428 | | b_get_properties_from_machine/1, |
| 1429 | | b_get_static_assertions_from_machine/1, |
| 1430 | | b_extract_values_clause_assignment/3, |
| 1431 | | b_get_unproven_static_assertions_from_machine/1, |
| 1432 | | b_get_dynamic_assertions_from_machine/1, |
| 1433 | | b_get_unproven_dynamic_assertions_from_machine/1, |
| 1434 | | b_get_assertions_from_main_machine/2, |
| 1435 | | b_get_initialisation_from_machine/2, |
| 1436 | | b_get_machine_operation/6,b_top_level_operation/1, |
| 1437 | | b_get_machine_operation_for_animation/7, |
| 1438 | | b_is_operation_name/1, |
| 1439 | | b_get_promoted_machine_operations/1. |
| 1440 | | |
| 1441 | | :- public b_get_invariant_from_machine_calc/1. |
| 1442 | | % precompiled: typed invariant (a predicate) |
| 1443 | | b_get_invariant_from_machine_calc(Inv) :- |
| 1444 | | get_section_from_current_machine(invariant,Inv). |
| 1445 | | |
| 1446 | | :- public b_get_linking_invariant_from_machine_calc/1. |
| 1447 | | % precompiled: typed linking invariant (a predicate) |
| 1448 | | b_get_linking_invariant_from_machine_calc(Inv) :- |
| 1449 | | get_section_from_current_machine(linking_invariant,Inv). |
| 1450 | | |
| 1451 | | |
| 1452 | | :- use_module(tools_lists,[exclude_count/4]). |
| 1453 | | b_get_non_ignored_properties_from_machine(NonIgnoredProperties,Excluded) :- |
| 1454 | | b_get_properties_from_machine(MProperties), |
| 1455 | | (get_preference(use_ignore_pragmas,true) % filter out prob-ignore predicates here |
| 1456 | | -> conjunction_to_list(MProperties,LMP), % TO DO avoid this conversion and back |
| 1457 | | exclude_count(predicate_has_ignore_pragma, LMP,LMP2,Excluded), % exclude props marked as prob-ignore |
| 1458 | | conjunct_predicates(LMP2,NonIgnoredProperties) |
| 1459 | | ; NonIgnoredProperties=MProperties, |
| 1460 | | Excluded=0 |
| 1461 | | ). |
| 1462 | | |
| 1463 | | :- public b_get_properties_from_machine_calc/1. |
| 1464 | | % precompiled: typed properties (a predicate) |
| 1465 | | b_get_properties_from_machine_calc(SortedProp) :- |
| 1466 | | get_section_from_current_machine(properties,Prop), |
| 1467 | | (sort_properties(Prop,SortedProp) -> true %(Prop=SortedProp->true ; print(sorted(SortedProp))) |
| 1468 | | ; add_error(sort_properties,'sort_properties failed: ',Prop), |
| 1469 | | SortedProp=Prop). |
| 1470 | | |
| 1471 | | sort_properties(Prop,SortedProp) :- % print(sort_properties),nl,statistics(runtime, [R1,_]), |
| 1472 | | weigh_properties(Prop,1,_,[],SProp), |
| 1473 | | % statistics(runtime, [R2,_]), RDiff is R2-R1,print(done_weigh(RDiff,SProp)),nl, |
| 1474 | | sort(SProp,SSProp), |
| 1475 | | % statistics(runtime, [R3,_]), RDiff2 is R3-R2,print(done_sort(RDiff2)),nl, |
| 1476 | | remove_weights(SSProp,PropList), |
| 1477 | | conjunct_predicates(PropList,SortedProp). |
| 1478 | | % translate:print_bexpr(SortedProp). |
| 1479 | | |
| 1480 | | remove_weights([],[]). |
| 1481 | | remove_weights([prop(_W,_Nr,E)|T],[E|RT]) :- remove_weights(T,RT). |
| 1482 | | |
| 1483 | | weigh_properties(Pred,Nr,ONr,InL,OutL) :- |
| 1484 | | decompose_conjunct(Pred,LHS,RHS), % will propagate labels down to conjuncts LHS,RHS |
| 1485 | | !, |
| 1486 | | weigh_properties(LHS,Nr,N1,InL,L2), |
| 1487 | | weigh_properties(RHS,N1,ONr,L2,OutL). |
| 1488 | | weigh_properties(b(Pred,S,I),Nr,N1,T,[prop(Weight,Nr,b(Pred,S,I))|T]) :- |
| 1489 | | N1 is Nr+1, |
| 1490 | ? | (member(contains_wd_condition,I) -> Weight=32000 % do not move properties with WD info |
| 1491 | | ; weigh_properties2(Pred,Weight)). |
| 1492 | | % translate:print_bexpr(b(Pred,S,I)), print(' WEIGHT: '), print(Weight),nl |
| 1493 | | |
| 1494 | | weigh_properties2(truth,W) :- !, W=1. |
| 1495 | | weigh_properties2(falsity,W) :- !, W=1. |
| 1496 | | weigh_properties2(equal(L,R),W) :- weigh_term(L,W1), !, |
| 1497 | | ( weigh_term(R,W2) -> W is W1*W2 |
| 1498 | | ; W is 3200). |
| 1499 | | % ; W is W1*20). %causes issue with ParityFunction test |
| 1500 | | %weigh_properties2(equal(_,R),W) :- weigh_term(R,W2), !, W is W2*20. |
| 1501 | | weigh_properties2(SOp,W) :- comparison(SOp,L,R),!, |
| 1502 | | ( (weigh_term(L,W1), weigh_term(R,W2)) |
| 1503 | | -> W is 7+W1+W2 % try and give things like x>10 priority over x>y (to overcome CLP(FD) limitations) |
| 1504 | | ; W=10). |
| 1505 | | weigh_properties2(partition(LHS,RHS),W) :- weigh_term(LHS,W1), l_weigh_term(RHS,W2), !, W is W1*W2. |
| 1506 | ? | weigh_properties2(not_equal(L,R),W) :- ((id(L),empty(R)) ; (id(R),empty(L))),!, W=1. |
| 1507 | | weigh_properties2(not_equal(L,R),W) :- weigh_term(L,W1), weigh_term(R,W2),!, |
| 1508 | | W is 20+W1*W2. |
| 1509 | | weigh_properties2(_Rest,W) :- W=32000. |
| 1510 | | |
| 1511 | | comparison(less(L,R),L,R). |
| 1512 | | comparison(less_equal(L,R),L,R). |
| 1513 | | comparison(greater(L,R),L,R). |
| 1514 | | comparison(greater_equal(L,R),L,R). |
| 1515 | | |
| 1516 | | |
| 1517 | | id(b(identifier(_),_,_)). |
| 1518 | | empty(b(empty_set,_,_)). |
| 1519 | | empty(b(empty_sequence,_,_)). |
| 1520 | | |
| 1521 | | l_weigh_term([],0). |
| 1522 | | l_weigh_term([H|T],R) :- l_weigh_term(T,TR), weigh_term(H,TH), R is TH+TR. |
| 1523 | | |
| 1524 | | weigh_term(b(T,_,_),R) :- (weigh_term2(T,R) -> true ; fail). %R=20). |
| 1525 | | |
| 1526 | | weigh_term2(value(_),1). |
| 1527 | | weigh_term2(boolean_true,1). |
| 1528 | | weigh_term2(boolean_false,1). |
| 1529 | | weigh_term2(empty_set,1). |
| 1530 | | weigh_term2(empty_sequence,1). |
| 1531 | | weigh_term2(integer(_),1). |
| 1532 | | weigh_term2(min_int,1). |
| 1533 | | weigh_term2(max_int,1). |
| 1534 | | weigh_term2(string(_),1). |
| 1535 | | weigh_term2(real(_),1). |
| 1536 | | weigh_term2(bool_set,2). |
| 1537 | | weigh_term2(identifier(_),2). |
| 1538 | | weigh_term2(set_extension(_),3). |
| 1539 | | weigh_term2(integer_set(_),3). |
| 1540 | | weigh_term2(interval(L,R),W) :- weigh_term(L,WL), weigh_term(R,WR), W is WL*WR. |
| 1541 | | |
| 1542 | | |
| 1543 | | |
| 1544 | | b_machine_has_constants_or_properties :- |
| 1545 | | (b_machine_has_constants -> true |
| 1546 | | ; (b_get_properties_from_machine(Prop)), \+ is_truth(Prop)). |
| 1547 | | |
| 1548 | | b_get_machine_operation_parameter_types(OpName,ParTypes) :- |
| 1549 | ? | b_get_machine_operation_typed_parameters(OpName,Parameters), |
| 1550 | | maplist(get_texpr_type,Parameters,ParTypes). |
| 1551 | | |
| 1552 | | b_get_machine_operation_typed_parameters(Operation,Res) :- |
| 1553 | ? | b_get_machine_operation_typed_parameters3(Operation,real_paras_only,Res). |
| 1554 | | b_get_machine_operation_typed_parameters_for_animation(Operation,Res) :- |
| 1555 | | b_get_machine_operation_typed_parameters3(Operation,for_animation,Res). |
| 1556 | | |
| 1557 | | b_get_machine_operation_typed_parameters3(Operation,ForAnim,Res) :- |
| 1558 | ? | if(b_get_machine_operation_typed_parameters_aux(Operation,ForAnim,Paras),Res=Paras, |
| 1559 | | (add_internal_error('Cannot get paras: ',b_get_machine_operation_typed_parameters(Operation,ForAnim,Res)),fail)). |
| 1560 | | % also recognises SETUP_CONSTANTS & INITIALISE_MACHINE |
| 1561 | | b_get_machine_operation_typed_parameters_aux('$setup_constants',_,Constants) :- |
| 1562 | | b_machine_has_constants_or_properties, |
| 1563 | | b_get_machine_constants(Constants). |
| 1564 | | b_get_machine_operation_typed_parameters_aux('$initialise_machine',_,Variables) :- |
| 1565 | | b_get_machine_variables(Variables). |
| 1566 | | b_get_machine_operation_typed_parameters_aux(OpName,real_paras_only,Parameters) :- |
| 1567 | | b_get_machine_operation(OpName,_R,Parameters,_Body,_OType,_OpPos). |
| 1568 | | b_get_machine_operation_typed_parameters_aux(OpName,for_animation,Parameters) :- |
| 1569 | | b_get_machine_operation_for_animation(OpName,_R,Parameters,_Body). |
| 1570 | | |
| 1571 | | b_get_machine_operation_parameter_names(OpName,ParaNames) :- |
| 1572 | | b_get_machine_operation_parameter_names(OpName,real_paras_only,ParaNames). |
| 1573 | | b_get_machine_operation_parameter_names_for_animation(OpName,ParaNames) :- |
| 1574 | | b_get_machine_operation_parameter_names(OpName,for_animation,ParaNames). |
| 1575 | | |
| 1576 | | b_get_machine_operation_parameter_names('@INITIALISATION',ForAnim,ParaNames) :- % for Tcl/Tk |
| 1577 | | b_get_machine_operation_parameter_names('$initialise_machine',ForAnim,ParaNames). |
| 1578 | | b_get_machine_operation_parameter_names('@PROPERTIES',ForAnim,ParaNames) :- % for Tcl/Tk |
| 1579 | | b_get_machine_operation_parameter_names('$setup_constants',ForAnim,ParaNames). |
| 1580 | | b_get_machine_operation_parameter_names(OpName,ForAnim,ParaNames) :- |
| 1581 | | b_get_machine_operation_typed_parameters3(OpName,ForAnim,Parameters), |
| 1582 | | get_texpr_ids(Parameters,ParaNames). |
| 1583 | | |
| 1584 | | b_get_machine_operation_typed_results('$setup_constants',[]). |
| 1585 | | b_get_machine_operation_typed_results('$initialise_machine',[]). |
| 1586 | | b_get_machine_operation_typed_results(OpName,Results) :- |
| 1587 | | b_get_machine_operation(OpName,Results,_Parameters,_Body,_OType,_OpPos). |
| 1588 | | |
| 1589 | | b_get_machine_operation_result_names('$setup_constants',[]). |
| 1590 | | b_get_machine_operation_result_names('$initialise_machine',[]). |
| 1591 | | b_get_machine_operation_result_names(OpName,ResultNames) :- |
| 1592 | | b_get_machine_operation(OpName,Results,_Parameters,_Body,_OType,_OpPos), |
| 1593 | | get_texpr_ids(Results,ResultNames). |
| 1594 | | |
| 1595 | | b_get_machine_operation(Name,Results,Parameters,Body) :- |
| 1596 | ? | b_get_machine_operation(Name,Results,Parameters,Body,_OType,_OpPos). |
| 1597 | | |
| 1598 | | :- public b_get_assertions_from_main_machine_calc/2. |
| 1599 | | b_get_assertions_from_main_machine_calc(static,FProp) :- |
| 1600 | | ((b_get_static_assertions_from_machine(Prop), |
| 1601 | | exclude(is_not_main_assertion,Prop,FProp)) -> true |
| 1602 | | ; add_error(bmachine,'b_get_assertions_from_main_machine_calc static fails'), FProp=[]). |
| 1603 | | b_get_assertions_from_main_machine_calc(dynamic,FProp) :- |
| 1604 | | ((b_get_dynamic_assertions_from_machine(Prop), |
| 1605 | | exclude(is_not_main_assertion,Prop,FProp)) -> true |
| 1606 | | ; add_error(bmachine,'b_get_assertions_from_main_machine_calc dynamic fails'), FProp=[]). |
| 1607 | | is_not_main_assertion(Assertion) :- |
| 1608 | | get_texpr_pos(Assertion,Pos), |
| 1609 | | error_manager:position_is_not_in_main_file(Pos). |
| 1610 | | |
| 1611 | | % get nr of assertions and nr of main assertions for static/dynamic |
| 1612 | | b_get_assertion_count(StaticOrDynamic,NrAll,NrMain) :- |
| 1613 | ? | b_get_assertions(all,StaticOrDynamic,A), length(A,NrAll), |
| 1614 | | b_get_assertions_from_main_machine(StaticOrDynamic,MA),length(MA,NrMain). |
| 1615 | | |
| 1616 | | b_get_assertions(main,Mode,Ass) :- !, |
| 1617 | | b_get_assertions_from_main_machine(Mode,Ass). |
| 1618 | | b_get_assertions(specific(Label),Mode,LabelAss) :- !, |
| 1619 | | b_get_assertions(all,Mode,Ass), |
| 1620 | | %maplist(get_texpr_label,Ass,Labels), print(labels(Labels)),nl, |
| 1621 | | include(has_label(Label),Ass,LabelAss), |
| 1622 | | (LabelAss=[] -> ajoin(['No ',Mode,' assertion has label: '],Msg), |
| 1623 | | add_warning(b_get_assertions,Msg,Label) ; true). |
| 1624 | | b_get_assertions(_,static,Ass) :- b_get_static_assertions_from_machine(Ass). |
| 1625 | | b_get_assertions(_,dynamic,Ass) :- b_get_dynamic_assertions_from_machine(Ass). |
| 1626 | | b_main_machine_has_no_assertions :- |
| 1627 | | b_get_assertions_from_main_machine(static,[]), |
| 1628 | | b_get_assertions_from_main_machine(dynamic,[]). |
| 1629 | | |
| 1630 | | |
| 1631 | | %has_label(Label,Expr) :- get_texpr_label(Expr,Label1), format('Labels ~w =? ~w~n',[Label1,Label]), fail. |
| 1632 | | has_label(Label,Expr) :- get_texpr_label(Expr,Label). |
| 1633 | | |
| 1634 | | :- public b_get_static_assertions_from_machine_calc/1. |
| 1635 | | % precompiled: typed assertions (a list of predicates) |
| 1636 | | b_get_static_assertions_from_machine_calc(Prop) :- |
| 1637 | | get_section_from_current_machine(assertions,Prop1), |
| 1638 | | exclude(predicate_uses_variables,Prop1,Prop),!. |
| 1639 | | b_get_static_assertions_from_machine_calc(Prop) :- |
| 1640 | | add_error(bmachine,'b_get_static_assertions_from_machine_calc fails'), Prop=[]. |
| 1641 | | |
| 1642 | | :- dynamic b_machine_has_static_assertions/0. |
| 1643 | | :- public b_machine_has_static_assertions_calc/0. |
| 1644 | | b_machine_has_static_assertions_calc :- |
| 1645 | | b_get_static_assertions_from_machine([_|_]). |
| 1646 | | |
| 1647 | | :- public b_get_unproven_static_assertions_from_machine_calc/1. |
| 1648 | | b_get_unproven_static_assertions_from_machine_calc(FAssertions) :- |
| 1649 | | b_get_static_assertions_from_machine(Assertions), |
| 1650 | | filter_out_proven_assertions(Assertions,FAssertions),!. |
| 1651 | | b_get_unproven_static_assertions_from_machine_calc(Prop) :- |
| 1652 | | add_error(bmachine,'b_get_unproven_static_assertions_from_machine_calc fails'), Prop=[]. |
| 1653 | | |
| 1654 | | filter_out_proven_assertions([],[]). |
| 1655 | | filter_out_proven_assertions([A1|T],R) :- |
| 1656 | | (is_discharged_assertion(A1) |
| 1657 | | -> R = TR %, print('Proven: '), translate:print_bexpr(A1),nl |
| 1658 | | ; R = [A1|TR]), |
| 1659 | | filter_out_proven_assertions(T,TR). |
| 1660 | | |
| 1661 | | :- public b_get_dynamic_assertions_from_machine_calc/1. |
| 1662 | | b_get_dynamic_assertions_from_machine_calc(Prop) :- |
| 1663 | | get_section_from_current_machine(assertions,Prop1), |
| 1664 | | include(predicate_uses_variables,Prop1,Prop),!. |
| 1665 | | b_get_dynamic_assertions_from_machine_calc(Prop) :- |
| 1666 | | add_error(bmachine,'b_get_dynamic_assertions_from_machine_calc fails'), Prop=[]. |
| 1667 | | |
| 1668 | | |
| 1669 | | :- dynamic b_machine_has_dynamic_assertions/0. |
| 1670 | | :- public b_machine_has_dynamic_assertions_calc/0. |
| 1671 | | b_machine_has_dynamic_assertions_calc :- |
| 1672 | | b_get_dynamic_assertions_from_machine([_|_]). |
| 1673 | | |
| 1674 | | b_machine_has_assertions :- (b_machine_has_static_assertions -> true ; b_machine_has_dynamic_assertions). |
| 1675 | | |
| 1676 | | b_machine_has_unproven_assertions :- |
| 1677 | | b_get_unproven_dynamic_assertions_from_machine([_|_]) -> true |
| 1678 | | ; b_get_unproven_static_assertions_from_machine([_|_]). |
| 1679 | | |
| 1680 | | |
| 1681 | | get_all_assertions_from_machine(Assertions) :- |
| 1682 | | findall(A,((SD=static;SD=dynamic),get_assertions_from_machine(SD,SS),member(A,SS)),Assertions). |
| 1683 | | |
| 1684 | | get_assertions_from_machine(Type,Assertions) :- |
| 1685 | | ( Type=(dynamic) -> |
| 1686 | | (get_preference(use_po,true) |
| 1687 | | -> b_get_unproven_dynamic_assertions_from_machine(Assertions) |
| 1688 | | ; b_get_dynamic_assertions_from_machine(Assertions) |
| 1689 | | ) |
| 1690 | | ; Type=(static) -> |
| 1691 | | (get_preference(use_po,true) |
| 1692 | | -> b_get_unproven_static_assertions_from_machine(Assertions) |
| 1693 | | ; b_get_static_assertions_from_machine(Assertions) |
| 1694 | | ) |
| 1695 | | ), |
| 1696 | | Assertions = [_|_]. |
| 1697 | | |
| 1698 | | :- public b_get_unproven_dynamic_assertions_from_machine_calc/1. |
| 1699 | | b_get_unproven_dynamic_assertions_from_machine_calc(FAssertions) :- |
| 1700 | | b_get_dynamic_assertions_from_machine(Assertions), |
| 1701 | | filter_out_proven_assertions(Assertions,FAssertions),!. |
| 1702 | | b_get_unproven_dynamic_assertions_from_machine_calc(Prop) :- |
| 1703 | | add_error(bmachine,'b_get_unproven_dynamic_assertions_from_machine_calc fails'), Prop=[]. |
| 1704 | | |
| 1705 | | predicate_uses_variables(Pred) :- |
| 1706 | | b_get_machine_variables(Vars), |
| 1707 | | get_texpr_ids(Vars,Ids), |
| 1708 | | list_to_ord_set(Ids,OrdVars), |
| 1709 | | find_identifier_uses(Pred,[],UsedVars), |
| 1710 | | list_to_ord_set(UsedVars,OrdUsedVars), |
| 1711 | | ord_intersect(OrdVars,OrdUsedVars). |
| 1712 | | |
| 1713 | | :- public b_get_initialisation_from_machine_calc/2. |
| 1714 | | % precompiled: typed initialisation (a substitution) |
| 1715 | | b_get_initialisation_from_machine_calc(Init,OType) :- |
| 1716 | | get_section_from_current_machine(initialisation,Init), |
| 1717 | | ( get_texpr_expr(Init,rlevent(_Name,_Section,_Status,Params,_Guard,_Theorems,_Actions,_VWitnesses,_PWitnesses,_Unmod,_AbstractEvents)) -> |
| 1718 | | get_operation_type(Init,'INITIALISATION',Params,OType) |
| 1719 | | ; |
| 1720 | | OType = classic). |
| 1721 | | % precompiled: operations, Name is in atomic form, Results and Parameters are lists |
| 1722 | | % of typed identifiers, Body is a typed substitution |
| 1723 | | |
| 1724 | | b_safe_get_initialisation_from_machine(Init,OType) :- |
| 1725 | | if(b_get_initialisation_from_machine(Init,OType),true, |
| 1726 | | add_error(bmachine,'Machine has no INITIALISATION clause')). |
| 1727 | | |
| 1728 | | |
| 1729 | | :- volatile b_machine_operation_names_in_reverse_order/1. |
| 1730 | | :- dynamic b_machine_operation_names_in_reverse_order/1. |
| 1731 | | % a list of operation names in reverse order; this way we can randomize the |
| 1732 | | % generation of the successor states |
| 1733 | | precompile_operation_names_in_reverse_order :- |
| 1734 | | retractall(b_machine_operation_names_in_reverse_order(_)), |
| 1735 | ? | b_get_machine_operation(Name,_Results,_Parameters,_Body,_OType,_OpPos), |
| 1736 | | asserta(b_machine_operation_names_in_reverse_order(Name)), |
| 1737 | | fail. |
| 1738 | | precompile_operation_names_in_reverse_order. |
| 1739 | | |
| 1740 | | :- use_module(specfile, [animation_minor_mode/1, classical_b_mode/0]). |
| 1741 | | :- use_module(extrasrc(b_expression_sharing),[cse_optimize_substitution/2]). |
| 1742 | | :- public b_get_machine_operation_calc/6. |
| 1743 | | b_get_machine_operation_calc(Name,Results,Parameters,NewBody,OType,OpPos) :- |
| 1744 | | %well_def_analyser:get_hyps_for_top_level_operations([],Hyps), |
| 1745 | | is_ground(Name,NameGround), |
| 1746 | | get_section_from_current_machine(operation_bodies,Ops), |
| 1747 | | get_texpr_expr(Op,operation(TId,Results,Parameters,Body)), |
| 1748 | | get_texpr_id(TId,op(Name)), |
| 1749 | ? | member(Op,Ops), |
| 1750 | | % remove choicepoints when name was ground |
| 1751 | | (NameGround==ground -> !; true), |
| 1752 | | get_operation_type(Op,Name,Parameters,OType), |
| 1753 | | (get_texpr_pos(TId,OpPos) -> true ; OpPos = unknown), |
| 1754 | | ( get_preference(use_common_subexpression_also_for_substitutions,true), |
| 1755 | | get_preference(use_common_subexpression_elimination,true), |
| 1756 | | \+ animation_minor_mode(eventb) % CSE_SUBST not yet available for Event-B |
| 1757 | | -> debug_println(19,applying_cse_to(Name)), |
| 1758 | | cse_optimize_substitution(Body,OpBody) |
| 1759 | | ; OpBody = Body), |
| 1760 | | NewBody=OpBody. |
| 1761 | | |
| 1762 | | b_get_machine_operation_signature(Name,SignatureStr) :- |
| 1763 | | b_get_machine_operation_calc(Name,Results,Parameters,_,_,_), |
| 1764 | | get_texpr_ids(Parameters,PIds), |
| 1765 | | ajoin_with_sep(PIds,',',Args), |
| 1766 | | (Results = [] |
| 1767 | | -> ajoin([Name,'(',Args,')'],SignatureStr) |
| 1768 | | ; get_texpr_ids(Results,RIds), |
| 1769 | | ajoin_with_sep(RIds,',',Res), |
| 1770 | | ajoin([Res,'<--',Name,'(',Args,')'],SignatureStr) |
| 1771 | | ). |
| 1772 | | |
| 1773 | | %well_def_analyser:transform_machine_operation(Name,Results,Parameters,OpBody,Hyps,[create_not_discharged_msg(message)],NewBody). |
| 1774 | | get_operation_type([],_Name,_Parameters,classic). |
| 1775 | | get_operation_type(Op,Name,Parameters,OType) :- |
| 1776 | | get_texpr_info(Op,Info), |
| 1777 | ? | ( member(eventb(_),Info) -> |
| 1778 | | OType=eventb_operation(SortedChangeSet,Ps,OpPattern), |
| 1779 | ? | member(modifies(ChangeSet),Info),!, |
| 1780 | | sort(ChangeSet,SortedChangeSet), % maybe not necessary ? |
| 1781 | | same_length(Parameters,Ps), |
| 1782 | | OpPattern =.. [Name|Ps] |
| 1783 | | ; |
| 1784 | | OType=classic). |
| 1785 | | |
| 1786 | | :- volatile get_operation_info/2, get_operation_description_template_expr/2. |
| 1787 | | :- dynamic get_operation_info/2, get_operation_description_template_expr/2. |
| 1788 | | :- public get_operation_info_calc/2, get_operation_description_template_expr_calc/2. |
| 1789 | | % precompiled: operation infos |
| 1790 | | get_operation_info_calc(OpName,Info1) :- |
| 1791 | | get_section_from_current_machine(operation_bodies,Ops), |
| 1792 | | create_texpr(operation(TId,_Results,_Parameters,_Body),_,Info1,TOp), % rlevent() |
| 1793 | | get_texpr_id(TId,op(OpName)), |
| 1794 | ? | member(TOp,Ops). |
| 1795 | | |
| 1796 | | b_get_operation_description(OpName,Desc) :- |
| 1797 | | get_operation_info(OpName,Infos), |
| 1798 | | member(description(Desc),Infos). |
| 1799 | | |
| 1800 | | get_operation_or_init_info('$setup_constants',[]). |
| 1801 | | get_operation_or_init_info('$initialise_machine',Info) :- |
| 1802 | | b_get_initialisation_from_machine(Init,_), |
| 1803 | | get_texpr_info(Init,Info). |
| 1804 | ? | get_operation_or_init_info(OpName,Info) :- get_operation_info(OpName,Info). |
| 1805 | | % todo '$setup_constants' |
| 1806 | | |
| 1807 | | % get a typed string expression that can compute an operation description (based on vars, paras, ...) |
| 1808 | | get_operation_description_template_expr_calc(OpName,TemplateStringExpr) :- |
| 1809 | | get_error_context(Context), |
| 1810 | | call_cleanup(get_op_desc_template_expr_calc2(OpName,TemplateStringExpr),restore_error_context(Context)). |
| 1811 | | |
| 1812 | | get_op_desc_template_expr_calc2(OpName,TemplateStringExpr) :- |
| 1813 | ? | get_operation_or_init_info(OpName,Infos), |
| 1814 | | (translate_operation_name(OpName,TOpName), % translate $setup_constants,... |
| 1815 | | b_definition_prefixed(expression, 'DESCRIPTION_FOR_', TOpName, DefName,DefPos), |
| 1816 | | get_machine_operation_typing_scope(OpName,Scope,[]), |
| 1817 | | b_get_typed_definition(DefName,Scope,TemplateStringExpr) |
| 1818 | | % the user provided an explicit DESCRIPTION definition: use this first; |
| 1819 | | % mainly useful for SETUP_CONSTANTS (DESCRIPTION_FOR_SETUP_CONSTANTS) |
| 1820 | | % for INITIALISATION and other operations we can also add a description pragma |
| 1821 | | -> (get_texpr_type(TemplateStringExpr,string) -> true |
| 1822 | | ; add_warning(bmachine,'Type of operation description definition must be string: ',DefName,DefPos), |
| 1823 | | fail |
| 1824 | | ) |
| 1825 | | ; % now look whether we have a description pragma |
| 1826 | | get_op_desc_template_expr_calc3(OpName,Infos,TemplateStringExpr) |
| 1827 | | ). |
| 1828 | | get_op_desc_template_expr_calc3(OpName,Infos,TemplateStringExpr) :- |
| 1829 | | member(description(Desc),Infos), |
| 1830 | | (member(description_position(OpPos),Infos) |
| 1831 | | -> true |
| 1832 | | ; get_info_pos(Infos,OpPos) |
| 1833 | | % Unfortunately this is the entire position from beginning of operation to desc label */ |
| 1834 | | ), |
| 1835 | | atom(Desc), |
| 1836 | | set_error_context(checking_context('Checking description template for operation: ',OpName)), |
| 1837 | | transform_string_template(Desc,OpPos,RawTemplateExpr), |
| 1838 | | %translate:print_raw_bexpr(RawTemplateExpr),nl, |
| 1839 | | GenerateParseErrors=gen_parse_warnings_for(OpPos), |
| 1840 | | get_machine_operation_typing_scope(OpName,Scope,[]), |
| 1841 | | % it could be that the template uses abstract variables that are no longer accessible |
| 1842 | | b_type_only(RawTemplateExpr,Scope,Type,TemplateStringExpr,GenerateParseErrors), |
| 1843 | | (debug_level_inactive_for(19) -> true |
| 1844 | | ; format('Template description expression for operation ~w:~n',[OpName]), |
| 1845 | | translate:print_bexpr(TemplateStringExpr),nl |
| 1846 | | ), |
| 1847 | | (Type=string -> true ; add_internal_error('Not string type:',Type)). |
| 1848 | | |
| 1849 | | |
| 1850 | | :- public b_top_level_operation_calc/1. |
| 1851 | | % precompiled: operation names (in atomic form) of top-level operations (promoted operations) |
| 1852 | | b_top_level_operation_calc(Name) :- |
| 1853 | | is_ground(Name,NameGround), |
| 1854 | | get_section_from_current_machine(promoted,Promoted), |
| 1855 | | get_texpr_id(TId,op(Name)), |
| 1856 | ? | member(TId,Promoted), |
| 1857 | | (NameGround==ground -> !; true). |
| 1858 | | :- public b_get_promoted_machine_operations_calc/1. |
| 1859 | | b_get_promoted_machine_operations_calc(Ops) :- |
| 1860 | | get_section_from_current_machine(promoted,Ops). |
| 1861 | | |
| 1862 | | :- volatile b_top_level_feasible_operation/1. |
| 1863 | | :- dynamic b_top_level_feasible_operation/1. |
| 1864 | | :- public b_top_level_feasible_operation_calc/1. |
| 1865 | | % filter out operations which are commented out statically by using 1=2 or similar in guard |
| 1866 | ? | b_top_level_feasible_operation_calc(Name) :- b_top_level_operation(Name), |
| 1867 | | b_get_machine_operation(Name,_,_,Body,_,_Pos), |
| 1868 | | \+ infeasible_tsubst(Body). |
| 1869 | | % TO DO: investigate how to link up with cbc feasibility analysis |
| 1870 | | |
| 1871 | | infeasible_tsubst(b(S,_,_)) :- infeasible_subst(S). |
| 1872 | | infeasible_subst(precondition(G,_)) :- is_falsity(G). |
| 1873 | | infeasible_subst(select([b(select_when(G,_),_,_)])) :- is_falsity(G). |
| 1874 | | infeasible_subst(any(_,G,_)) :- is_falsity(G). |
| 1875 | | |
| 1876 | | % this succeeds not just for top-level operations |
| 1877 | | %b_is_operation_name(Name) :- b_get_machine_operation(Name,_,_,_,_,_). is slower |
| 1878 | | :- public b_is_operation_name_calc/1. |
| 1879 | | b_is_operation_name_calc(Name) :- |
| 1880 | ? | b_get_machine_operation(Name,_,_,_,_,_). |
| 1881 | | |
| 1882 | | :- volatile b_top_level_operation_without_machine_prefix/2. |
| 1883 | | :- dynamic b_top_level_operation_without_machine_prefix/2. |
| 1884 | | :- public b_top_level_operation_without_machine_prefix_calc/2. |
| 1885 | | % if we have a top-level operation M1.op then here we store here that op is mapped to the full name M1.op. |
| 1886 | | b_top_level_operation_without_machine_prefix_calc(OpName,FullOpName) :- |
| 1887 | ? | b_top_level_operation(FullOpName), |
| 1888 | | split_last(FullOpName, '.', _, OpName). |
| 1889 | | |
| 1890 | | b_get_operation_pos(Name,Pos) :- |
| 1891 | ? | b_get_machine_operation(Name,_,_,_,_,Pos). |
| 1892 | | |
| 1893 | | b_get_operation_variant(Name,ConvOrAnt,Variant) :- |
| 1894 | ? | b_get_machine_operation(Name,_,_,TBody), |
| 1895 | | get_texpr_expr(TBody,Body), |
| 1896 | | Body = rlevent(Name,_Section,Status, |
| 1897 | | _Params,_Guard,_Theorems,_Actions,_VWitnesses,_PWitnesses,_Unmod,_AbstractEvents), |
| 1898 | | % TO DO: look maybe higher up in refinement hierarchy |
| 1899 | | get_texpr_expr(Status,S), |
| 1900 | | functor(S,ConvOrAnt,1), |
| 1901 | | (ConvOrAnt = convergent ; ConvOrAnt = anticipated), |
| 1902 | | arg(1,S,Variant). |
| 1903 | | |
| 1904 | | b_machine_has_operations :- |
| 1905 | | (b_is_operation_name(_) -> true). |
| 1906 | | % ----------------------------- |
| 1907 | | |
| 1908 | | |
| 1909 | | % the names of definitions which have a given Prefix, |
| 1910 | | % Type is expression or predicate, Name is an atomic name |
| 1911 | | b_definition_prefixed(Type,Prefix,Suffix,Name,Pos) :- |
| 1912 | | safe_atom_chars(Prefix,PrefixChars,b_definition_prefixed1), |
| 1913 | | append(PrefixChars,SuffixChars,FullChars), |
| 1914 | | (ground(Suffix) -> safe_atom_chars(Suffix,SuffixChars,b_definition_prefixed2), |
| 1915 | | safe_atom_chars(Name,FullChars,b_definition_prefixed3) |
| 1916 | | ; true), |
| 1917 | ? | b_get_definition_name_with_pos(Name,_Arity,Type,Pos), |
| 1918 | | safe_atom_chars(Name,FullChars,b_definition_prefixed4), |
| 1919 | | safe_atom_chars(Suffix,SuffixChars,b_definition_prefixed5). |
| 1920 | | |
| 1921 | | % TODO: should we also look for theory direct definitions for Event-B models? |
| 1922 | | % :- use_module(bmachine_eventb,[stored_operator_direct_definition/8]). |
| 1923 | | % stored_operator_direct_definition(Id,_Proj,_Thy,Parameters,_Def,_WD,_TP,_Kind), |
| 1924 | | % or add auxiliary definition files for Event-B models |
| 1925 | | |
| 1926 | | |
| 1927 | | % get definitions in alphabetical order of name: |
| 1928 | | % predictable order is relevant for SVG_OBJECTS to know which objects are on top of each other |
| 1929 | | b_sorted_b_definition_prefixed(Type,DEFPREFIX,DefName,DefPos) :- |
| 1930 | | (b_or_z_mode -> true |
| 1931 | | ; additional_defs_loaded), % allow, e.g., XTL mode for VisB definition files (VISB_DEFINITIONS_FILE); |
| 1932 | | % TODO: maybe allow other non-B modes (mainly for VisB) |
| 1933 | | % fail silently if we are not B/Z/TLA+/Alloy mode as machine not pre-compiled |
| 1934 | | (DEFPREFIX==DefName % only one can definition can match; no need to do findall |
| 1935 | | -> b_get_definition_name_with_pos(DefName,_,_,DefPos) |
| 1936 | | ; sorted_list_of_defs(Type,DEFPREFIX,SortedList), |
| 1937 | ? | member(def(DefName,DefPos),SortedList) |
| 1938 | | ). |
| 1939 | | sorted_list_of_defs(Type,DEFPREFIX,SortedList) :- |
| 1940 | | findall(def(DefName,DefPos), |
| 1941 | | b_definition_prefixed(Type,DEFPREFIX,_Tail,DefName,DefPos), |
| 1942 | | List), |
| 1943 | | sort(List,SortedList). |
| 1944 | | |
| 1945 | | |
| 1946 | | :- use_module(bmachine_construction,[type_open_formula/8]). |
| 1947 | | type_check_definitions :- |
| 1948 | | temporary_set_preference(allow_untyped_identifiers,true_with_string_type,CHNG), % we may not have all identifiers visible |
| 1949 | | get_error_context(Context), |
| 1950 | | call_cleanup(type_check_definitions2,restore_error_context(Context)), |
| 1951 | | reset_temporary_preference(allow_untyped_identifiers,CHNG). |
| 1952 | | type_check_definitions2 :- |
| 1953 | | get_preference(type_check_definitions,true), |
| 1954 | | full_b_machine(Machine), |
| 1955 | | b_get_definition_with_pos(Name,Type,DefPos,Args,RawExpr,_Deps), |
| 1956 | | % TO DO: do not re-analyse definitions already analysed for ANIMATION_FUNCTION,... |
| 1957 | | (Type = predicate ; Type=expression), % can we also allow substitutions ? |
| 1958 | | debug_format(9,'Type checking DEFINITION ~w~n',[Name]), |
| 1959 | | set_error_context(checking_context('Type checking DEFINITION: ',Name)), |
| 1960 | | Scope = [variables], % prob_ids(visible), |
| 1961 | | %type_with_errors(RawExpr,Scope,_,_TExpr), |
| 1962 | | AllowNewIds=true, |
| 1963 | | % TO DO: improve solution below, e.g., delete Args from visible variables or rename Args to fresh ids! |
| 1964 | | (Args=[] -> RawExpr2=RawExpr |
| 1965 | | ; Type=predicate -> RawExpr2 = exists(none,Args,conjunct(none,falsity(none),RawExpr)) |
| 1966 | | % wrap Args into quantifier, avoid clash with variables,... ; conjunct used to avoid warnings about body of exists |
| 1967 | | % it would be better to use unknown_truth_value instead of falsity, but this currently fails in btypechecker |
| 1968 | | ; RawExpr2=exists(none,Args,equal(none,RawExpr,RawExpr)) % TODO: better solution to avoid duplicating RawExpr |
| 1969 | | ), |
| 1970 | | (type_open_formula(RawExpr2,Scope,AllowNewIds,Machine,FType,Identifiers,_TPred,Errors) % maybe no need to run cleanup? |
| 1971 | | -> Errors = [_|_], |
| 1972 | | format('Error for DEFINITION ~w of type ~w over identifiers ~w~n',[Name,FType,Identifiers]), |
| 1973 | | add_all_perrors_in_context_of_used_filenames(Errors,definition_type_error,error), |
| 1974 | | fail |
| 1975 | | % TO DO: check for local clashes? |
| 1976 | | ; add_error(bmachine,'Type checking DEFINITION failed: ',Name,DefPos) |
| 1977 | | ), |
| 1978 | | fail. |
| 1979 | | type_check_definitions2 :- debug_format(9,'Finished type checking DEFINITIONs~n',[]). |
| 1980 | | |
| 1981 | | b_get_definition(Name,DefType,Args,RawExpr,Deps) :- |
| 1982 | ? | b_get_definition_with_pos(Name,DefType,_DefPos,Args,RawExpr,Deps). |
| 1983 | | |
| 1984 | | :- public portray_defs/0. % debugging utility |
| 1985 | | portray_defs :- |
| 1986 | | b_get_definition_with_pos(Name,DefType,DefPos,_Args,_RawExpr,_), |
| 1987 | | add_message(bmachine,'DEFINITION: ',Name:DefType,DefPos),fail. |
| 1988 | | portray_defs. |
| 1989 | | |
| 1990 | | b_get_definition_with_pos(Name,DefType,DefPos,Args,RawExpr,Deps) :- %print(get_def(Name)),nl, |
| 1991 | | get_section_from_current_machine(definitions,Defs), |
| 1992 | ? | member(definition_decl(Name,DefType,_DefInfos,DefPos,Args,RawExpr,Deps),Defs). |
| 1993 | | b_get_definition_with_pos(Name,DefType,DefPos,Args,RawExpr,Deps) :- %print(get_def(Name)),nl, |
| 1994 | | additional_configuration_machine(_MchName,Mch), |
| 1995 | | get_section(definitions,Mch,Defs), |
| 1996 | | member(definition_decl(Name,DefType,_,DefPos,Args,RawExpr,Deps),Defs). |
| 1997 | | %flush_output,write(additional_def(Name,DefType,Deps)),nl,flush_output. |
| 1998 | | |
| 1999 | | % a version where we have already pre-fetched the Defs section to avoid getting full B machine each time |
| 2000 | | b_get_definition_from_defs_section(Defs,Name,DefType,DefPos,Args,RawExpr,Deps) :- %print(get_def(Name)),nl, |
| 2001 | ? | member(definition_decl(Name,DefType,_,DefPos,Args,RawExpr,Deps),Defs). |
| 2002 | | b_get_definition_from_defs_section(_,Name,DefType,DefPos,Args,RawExpr,Deps) :- %print(get_def(Name)),nl, |
| 2003 | | additional_configuration_machine(_MchName,Mch), |
| 2004 | | get_section(definitions,Mch,Defs), |
| 2005 | | member(definition_decl(Name,DefType,_,DefPos,Args,RawExpr,Deps),Defs). |
| 2006 | | |
| 2007 | | |
| 2008 | | :- use_module(input_syntax_tree,[raw_update_file_nrs/3]). |
| 2009 | | :- volatile additional_configuration_machine/2. |
| 2010 | | :- dynamic additional_configuration_machine/2. |
| 2011 | | % load an additional definitions file for ViB configuration or CUSTOM_GRAPH features |
| 2012 | | % useful for Event-B, ... models |
| 2013 | | b_load_additional_definitions_file(File) :- |
| 2014 | | Options=[], |
| 2015 | | catch(load_b_machine_as_term(File,Machine,Options), |
| 2016 | | parse_errors(Errors), |
| 2017 | | (add_all_perrors_in_context_of_used_filenames(Errors,parse_error,error),fail)), |
| 2018 | | b_load_additional_definitions_from_term(Machine). |
| 2019 | | |
| 2020 | | b_load_additional_definitions_from_list_of_facts(ListOfFacts) :- |
| 2021 | | load_b_machine_list_of_facts_as_term(ListOfFacts, Machine), |
| 2022 | | b_load_additional_definitions_from_term(Machine). |
| 2023 | | |
| 2024 | | b_load_additional_definitions_from_term(complete_machine(_MainName, Machines, [File|_OtherFilenames])) :- |
| 2025 | | b_get_all_used_filenames(Fs), |
| 2026 | | member(File,Fs), % this definition file was already loaded, maybe not at top-level |
| 2027 | | member(definition_file(_,Defs),Machines), |
| 2028 | | Defs = definitions(_Pos,DefList), |
| 2029 | | (member(expression_definition(_DefPos1,NAME,Args1,_RawExpr1),DefList) -> true), |
| 2030 | | % check if first Definition found already exists, not a 100% guarantee that File was loaded at top-level |
| 2031 | | % but we would get type-errors anyway |
| 2032 | | b_get_definition_with_pos(NAME,_DefType,_DefPos2,Args2,_RawExpr2,_Deps), |
| 2033 | | same_length(Args1,Args2), |
| 2034 | | add_warning(bmachine,'DEFINITION file already loaded (not loading it again to avoid errors): ',File), |
| 2035 | | !. |
| 2036 | | b_load_additional_definitions_from_term(complete_machine(MainName, Machines, Filenames)) :- |
| 2037 | | maplist(add_additional_filename,Filenames,NewNrs), |
| 2038 | | member(definition_file(_,Defs),Machines), |
| 2039 | | Defs = definitions(_Pos,_List), |
| 2040 | | raw_update_file_nrs(Defs,NewNrs,NewDefs), |
| 2041 | | bmachine_construction:extract_only_definitions(MainName,[NewDefs],DefsMachine,Errs), |
| 2042 | | add_all_perrors_in_context_of_used_filenames(Errs,definition_type_error,error), |
| 2043 | | retractall(additional_configuration_machine(MainName,_)), |
| 2044 | | assert(additional_configuration_machine(MainName,DefsMachine)), |
| 2045 | | b_machine_recompile_for_new_defs. |
| 2046 | | |
| 2047 | | additional_defs_loaded :- (additional_configuration_machine(_,_) -> true). |
| 2048 | | |
| 2049 | | |
| 2050 | | % the next calls get typed definitions without parameters: |
| 2051 | | % (To treat definitions with parameters one would have to add the parameters to the type environment, see type_check_definitions2) |
| 2052 | | b_get_typed_predicate_definition(Name,Scope,ResTExpr) :- |
| 2053 | | b_get_definition_name_with_pos(Name,0,predicate,_), % check if it exists first |
| 2054 | ? | b_get_definition(Name,predicate,[],RawExpr,_Deps), |
| 2055 | | type_with_errors_in_context(RawExpr,Scope,_,TExpr,machine_context,error), |
| 2056 | | ResTExpr=TExpr. % Do unification after to not prevent generation of type errors. |
| 2057 | | b_get_typed_expression_definition(Name,Scope,ResTExpr) :- |
| 2058 | | b_get_definition_name_with_pos(Name,0,expression,_), % check if it exists first |
| 2059 | | b_get_definition(Name,expression,[],RawExpr,_Deps), |
| 2060 | | type_with_errors_in_context(RawExpr,Scope,_,TExpr,machine_context,error), |
| 2061 | | ResTExpr=TExpr. % Do unification after to not prevent generation of type errors, e.g., test 1691 |
| 2062 | | b_get_true_expression_definition(Name) :- |
| 2063 | | b_get_typed_expression_definition(Name,[variables_and_additional_defs],PF), |
| 2064 | | PF = b(boolean_true,boolean,_). |
| 2065 | | %b_get_typed_subst_definition(Name,Scope,Parameters,TExpr) :- |
| 2066 | | % temporary_set_preference(allow_local_operation_calls,true,CHNG), |
| 2067 | | % b_get_definition(Name,substitution,Parameters,RawExpr,_Deps), |
| 2068 | | % type_with_errors(RawExpr,[operation_bodies|Scope],_,TExpr), % need to remove variables to avoid clash warnings |
| 2069 | | % reset_temporary_preference(allow_local_operation_calls,CHNG). |
| 2070 | | b_get_typed_definition(Name,Scope,TExpr) :- |
| 2071 | | b_get_definition_name_with_pos(Name,0,_,_), % check if it exists first |
| 2072 | ? | b_get_definition(Name,_DefType,[],RawExpr,_Deps), |
| 2073 | | type_with_errors_in_context(RawExpr,Scope,_,TExpr,machine_context,error). |
| 2074 | | |
| 2075 | | |
| 2076 | | % the following does not send errors to error_manager: |
| 2077 | | % and requires get_section_from_current_machine(definitions,Defs), to be called before |
| 2078 | | b_get_typed_definition_with_error_list(Machine,Defs,Name,Scope,TExpr,ErrorsAndWarnings,Success) :- |
| 2079 | ? | b_get_definition_from_defs_section(Defs,Name,_DefType,_DefPos,[],RawExpr,_Deps), |
| 2080 | | b_type_expression_nge(Machine,RawExpr,Scope,do_not_ground_types,_Type,TExpr,ErrorsAndWarnings), |
| 2081 | | (no_real_perror_occurred(ErrorsAndWarnings) -> Success=true ; Success=false). |
| 2082 | | |
| 2083 | | get_definitions_section(Defs) :- get_section_from_current_machine(definitions,Defs). |
| 2084 | | |
| 2085 | | type_with_errors(RawExpr,Scope,Type,TExpr) :- |
| 2086 | | type_with_errors_in_context(RawExpr,Scope,Type,TExpr,not_in_machine_context([]),error). |
| 2087 | | |
| 2088 | | |
| 2089 | | type_with_errors_in_context(RawExpr,Scope,Type,TExpr,Context,ErrOrWarn) :- % print(scope(Scope)),nl, |
| 2090 | | b_type_expression(RawExpr,Scope,Type,TExpr,Errors),!, |
| 2091 | | (Context=not_in_machine_context(Filenames) |
| 2092 | | -> add_all_perrors(Errors,Filenames,type_expression_error,ErrOrWarn) % [] for REPL, or JSON file for VisB |
| 2093 | | ; add_all_perrors_in_context_of_used_filenames(Errors,type_expression_error,ErrOrWarn) |
| 2094 | | ), |
| 2095 | | no_real_perror_occurred(Errors). % check that we have no errors, just warnings |
| 2096 | | |
| 2097 | | % here we do not add perrors; just fail |
| 2098 | | type_without_errors(RawExpr,Scope,Type,TExpr) :- |
| 2099 | | b_type_expression(RawExpr,Scope,Type,TExpr,Errors),!, |
| 2100 | | no_real_perror_occurred(Errors). |
| 2101 | | |
| 2102 | | % OptionalQuantifier is: forall, exists, no_quantifier |
| 2103 | | % influences whether we create a forall, exists or no quantifier around the RawPred |
| 2104 | | b_type_open_predicate_with_errors(OptionalQuantifier,RawPred,Scope,TPred) :- |
| 2105 | | b_type_open_predicate(OptionalQuantifier,RawPred,Scope,TPred,Errors), |
| 2106 | | add_all_perrors(Errors,[],type_expression_error), |
| 2107 | | no_real_perror_occurred(Errors). |
| 2108 | | b_type_open_predicate(OptionalQuantifier,RawPred,Scope,TPred,Errors) :- |
| 2109 | | b_type_open_predicate_for_full_b_machine(_Machine,OptionalQuantifier,RawPred,Scope,TPred,Errors). |
| 2110 | | b_type_open_predicate_for_full_b_machine(Machine,OptionalQuantifier,RawPred,Scope,TPred,Errors) :- |
| 2111 | | (var(Machine) -> full_b_machine(Machine) ; true), |
| 2112 | | replace_prob_set_elements_in_scope(Scope,Scope1), |
| 2113 | | type_open_predicate_with_quantifier(OptionalQuantifier,RawPred,Scope1,Machine,TPred,Errors),!. |
| 2114 | | b_type_open_exists_predicate(Raw,Typed,Errors) :- |
| 2115 | | b_type_open_predicate(open(exists),Raw,[prob_ids(visible),variables],Typed,Errors). |
| 2116 | | |
| 2117 | | % Note: see pre_expand_typing_scope below if you need to type a long list of expressions |
| 2118 | | b_type_expression(RawExpr,Scope,Type,TExpr,Errors) :- |
| 2119 | | b_type_expression(_Machine,RawExpr,Scope,Type,TExpr,Errors). |
| 2120 | | % machine can be variable; will be instantiated upon demand |
| 2121 | | b_type_expression(_,RawExpr,_Scope,Type,TExpr,Errors) :- |
| 2122 | | b_type_literal(RawExpr,T,TE),!, |
| 2123 | | Type=T,TExpr=TE,Errors=[]. |
| 2124 | | b_type_expression(Machine,RawExpr,Scope,Type,TExpr,Errors) :- |
| 2125 | | b_type_expression_for_full_b_machine(Machine,RawExpr,Scope,Type,TExpr,Errors). |
| 2126 | | % version where we can pass NonGroundException list or do_not_ground_types: |
| 2127 | | b_type_expression_nge(Machine,RawExpr,Scope,NonGroundExceptions,Type,TExpr,Errors) :- |
| 2128 | | b_type_expression_for_full_b_machine_nge(Machine,RawExpr,Scope,NonGroundExceptions,Type,TExpr,Errors). |
| 2129 | | |
| 2130 | | % type literals without setting up scope, ... |
| 2131 | | % TODO: also use for type_in_machine_l |
| 2132 | | b_type_literal(boolean_false(Pos),boolean,b(boolean_false,boolean,[nodeid(Pos)])). |
| 2133 | | b_type_literal(boolean_true(Pos),boolean,b(boolean_true,boolean,[nodeid(Pos)])). |
| 2134 | | b_type_literal(integer(Pos,Int),integer,b(integer(Int),integer,[nodeid(Pos)])). |
| 2135 | | b_type_literal(real(Pos,R),real,b(real(R),real,[nodeid(Pos)])). |
| 2136 | | b_type_literal(string(Pos,Atom),string,b(string(Atom),string,[nodeid(Pos)])). |
| 2137 | | |
| 2138 | | |
| 2139 | | b_type_expression_for_full_b_machine(M,RawExpr,Scope,Type,TExpr,Errors) :- |
| 2140 | | b_type_expressions_l(M,[RawExpr],Scope,[],[Type],[TExpr],Errors). |
| 2141 | | % version where we can also specify NonGroundExceptions (e.g. to do_not_ground_types) |
| 2142 | | b_type_expression_for_full_b_machine_nge(M,RawExpr,Scope,NonGroundExceptions,Type,TExpr,Errors) :- |
| 2143 | | b_type_expressions_l(M,[RawExpr],Scope,NonGroundExceptions,[Type],[TExpr],Errors). |
| 2144 | | |
| 2145 | | b_type_expressions_l(Machine,RawExprs,Scope,NonGroundExceptions,Types,TExprs,Errors) :- |
| 2146 | | (var(Machine) -> full_b_machine(Machine) ; true), |
| 2147 | | % in case you type check multiple expressions for a complex machine it is better to extract the machine once |
| 2148 | | replace_prob_set_elements_in_scope(Scope,Scope1), |
| 2149 | | % we need this, for example for tcltk_check_state_sequence_from_file, when deferred set elements written by TLC are in the file |
| 2150 | ? | type_in_machine_l(RawExprs,Scope1,NonGroundExceptions,Machine,Types,TExprs,Errors),!. |
| 2151 | | |
| 2152 | | replace_prob_set_elements_in_scope(Scope,Res) :- var(Scope),!, |
| 2153 | | add_internal_error('Scope is a variable (use, e.g., [constants,variables,operation_bodies,...]):',replace_prob_set_elements_in_scope(Scope,Res)), |
| 2154 | | Res=Scope. |
| 2155 | | replace_prob_set_elements_in_scope(Scope,NewScope) :- |
| 2156 | ? | ( select(prob_ids(AllOrVisible),Scope,identifier(Ids),NewScope) |
| 2157 | | -> % replaces prob by deferred set element identifiers |
| 2158 | | % e.g., if we have SETS PID then we would have PID1,... in Ids unless PID1 is known to be another identifier |
| 2159 | | b_get_prob_deferred_set_elements(DefIDs,AllOrVisible), |
| 2160 | | exclude(known_identifier,DefIDs,Ids) % exclude those ids that would clash |
| 2161 | | % TO DO: add option to translate_identifiers using translate:keyword_to_id_cache |
| 2162 | | ; |
| 2163 | | Scope = NewScope). |
| 2164 | | |
| 2165 | | |
| 2166 | | known_identifier(X) :- get_texpr_id(X,ID), |
| 2167 | | (bmachine:b_is_constant(ID,_) ; |
| 2168 | | bmachine:b_is_variable(ID,_)). |
| 2169 | | |
| 2170 | | |
| 2171 | | :- use_module(bmachine_construction,[create_scope/6]). |
| 2172 | | % pre-expand a type-checking scope once; so that we can typecheck a series of formulas |
| 2173 | | pre_expand_typing_scope(Scope,pre_expanded_scope(Env,Errors)) :- |
| 2174 | | replace_prob_set_elements_in_scope(Scope,NewScope), |
| 2175 | | full_b_machine(Machine), |
| 2176 | | create_scope(NewScope,machine,Machine,Env,Errors,[]). |
| 2177 | | |
| 2178 | | % ------------------------ |
| 2179 | | |
| 2180 | | % a generic predicate to find all kinds of identifiers |
| 2181 | | |
| 2182 | | :- use_module(b_global_sets,[b_global_set/1, is_b_global_constant/3, |
| 2183 | | b_global_sets_precompiled/0]). |
| 2184 | | :- use_module(probsrc(kernel_freetypes),[registered_freetype/2, freetype_case_db/3]). |
| 2185 | | :- use_module(probsrc(bmachine_eventb), [ stored_operator/2]). |
| 2186 | | %! mode get_machine_identifiers(+Category, -ListOfIdentifiers) |
| 2187 | | get_machine_identifiers(machines,MN) :- |
| 2188 | | findall(FID, (b_filenumber(FID,Type,_,_),Type \= def),MN). |
| 2189 | | get_machine_identifiers(definition_files,DFN) :- |
| 2190 | | findall(FID, b_filenumber(FID,def,_,_),DFN). |
| 2191 | | get_machine_identifiers(definitions,DN) :- |
| 2192 | | findall(DefID,b_get_definition(DefID,_,_,_,_),DN). |
| 2193 | | get_machine_identifiers(sets,Sets) :- |
| 2194 | | % to avoid failures for other animation modes (e.g. in xtl_mode), check b_global_sets_precompiled in findall |
| 2195 | | findall(GS,(b_global_sets_precompiled, b_global_set(GS)),Sets). |
| 2196 | | get_machine_identifiers(set_constants,Csts) :- |
| 2197 | | findall(Cst,(b_global_sets_precompiled, is_b_global_constant(_GS,_,Cst)),Csts). |
| 2198 | | get_machine_identifiers(constants,CN) :- |
| 2199 | | bmachine_is_precompiled, |
| 2200 | | b_get_machine_constants(Constants), |
| 2201 | | get_texpr_ids(Constants,CN). |
| 2202 | | get_machine_identifiers(freetypes,FN) :- |
| 2203 | | findall(FID,((registered_freetype(F,_) ; freetype_case_db(F,_,_)),functor(F,FID,_)),FN). |
| 2204 | | get_machine_identifiers(operators,FN) :- |
| 2205 | | findall(Name,stored_operator(Name,_Kind),FN). % we could exclude Kind=datatype_definition, as listed in freetypes? |
| 2206 | | get_machine_identifiers(variables,VN) :- |
| 2207 | | bmachine_is_precompiled, |
| 2208 | | b_get_machine_variables(Variables), |
| 2209 | | get_texpr_ids(Variables,VN). |
| 2210 | | get_machine_identifiers(operations,Ops) :- |
| 2211 | | bmachine_is_precompiled, |
| 2212 | | findall(Op,b_top_level_operation(Op),Ops). |
| 2213 | | |
| 2214 | | get_machine_identifiers_with_pp_type(machines,MN) :- |
| 2215 | | findall([FID,'Machine'], (b_filenumber(FID,Type,_,_),Type \= def),MN). |
| 2216 | | get_machine_identifiers_with_pp_type(definition_files,DFN) :- |
| 2217 | | findall([FID,'Definition file'], b_filenumber(FID,def,_,_),DFN). |
| 2218 | | get_machine_identifiers_with_pp_type(definitions,DN) :- |
| 2219 | | findall([DefID,DefType],b_get_definition(DefID,DefType,_,_,_),DN). |
| 2220 | | get_machine_identifiers_with_pp_type(sets,Sets) :- |
| 2221 | | findall([GS,GS],(b_global_sets_precompiled, b_global_set(GS)),Sets). |
| 2222 | | get_machine_identifiers_with_pp_type(set_constants,Csts) :- |
| 2223 | | findall([Cst,GS],(b_global_sets_precompiled, is_b_global_constant(GS,_,Cst)),Csts). |
| 2224 | | get_machine_identifiers_with_pp_type(constants,CN) :- |
| 2225 | | bmachine_is_precompiled, |
| 2226 | | b_get_machine_constants(Constants), |
| 2227 | | maplist(extract_id_and_pp_type,Constants,CN). |
| 2228 | | %get_machine_identifiers_with_pp_type(freetypes,FN) :- |
| 2229 | | % findall([FID,FID],((registered_freetype(F,_) ; freetype_case_db(F,_,_)),functor(F,FID,_)),FN). |
| 2230 | | get_machine_identifiers_with_pp_type(operators,FN) :- |
| 2231 | | findall([Name,''],stored_operator(Name,_Kind),FN). % we could exclude Kind=datatype_definition, as listed in freetypes? |
| 2232 | | get_machine_identifiers_with_pp_type(variables,VN) :- |
| 2233 | | bmachine_is_precompiled, |
| 2234 | | b_get_machine_variables(Variables), |
| 2235 | | maplist(extract_id_and_pp_type,Variables,VN). |
| 2236 | | get_machine_identifiers_with_pp_type(operations,Ops) :- |
| 2237 | | bmachine_is_precompiled, |
| 2238 | | findall([Op,'Operation'],b_top_level_operation(Op),Ops). |
| 2239 | | |
| 2240 | | :- use_module(bsyntaxtree,[get_texpr_id/2, get_texpr_type/2]). |
| 2241 | | :- use_module(translate,[pretty_type/2]). |
| 2242 | | extract_id_and_pp_type(TId,[Id,PPType]) :- |
| 2243 | | get_texpr_id(TId,Id), |
| 2244 | | get_texpr_type(TId,Type), |
| 2245 | | pretty_type(Type,PPType). |
| 2246 | | |
| 2247 | | :- use_module(b_global_sets,[b_global_deferred_set/1,all_elements_of_type/2]). |
| 2248 | | :- use_module(input_syntax_tree,[get_raw_position_info/2]). |
| 2249 | | % try and get source code for an identifier |
| 2250 | | source_code_for_identifier(ID,constant,Type,OriginStr,OriginTerm,Source) :- b_is_constant(ID),!, |
| 2251 | | get_constant_type_and_origin(ID,Type,OriginStr,OriginTerm), |
| 2252 | | findall(Def,get_constant_definition(ID,Def),AllDefs), |
| 2253 | | (AllDefs=[_|_] -> conjunct_predicates(AllDefs,Source) |
| 2254 | | ; % try and find other type of predicates defining ID |
| 2255 | | findall(Pred,get_constant_predicate(ID,Pred),AllPreds), |
| 2256 | | conjunct_predicates(AllPreds,Source)). |
| 2257 | | source_code_for_identifier(ID,variable,Type,OriginStr,OriginTerm,Source) :- b_is_variable(ID),!, |
| 2258 | | get_variable_type_and_origin(ID,Type,OriginStr,OriginTerm), |
| 2259 | | Source = b(truth,pred,[]). % TO DO: improve |
| 2260 | | source_code_for_identifier(ID,Kind,Type,OriginStr,OriginTerm,Source) :- b_get_machine_set(ID,TID),!, |
| 2261 | | (b_global_deferred_set(ID) -> Kind = deferred_set ; Kind = enumerated_set), |
| 2262 | | Type = set(global(ID)), |
| 2263 | | all_elements_of_type(ID,All), |
| 2264 | | translate:translate_span_with_filename(TID,OriginStr), OriginTerm=TID, |
| 2265 | | Source = b(equal(TID,b(value(All),Type,[])),pred,[]). |
| 2266 | | source_code_for_identifier(ID,Kind,Type,OriginStr,OriginTerm,Source) :- |
| 2267 | | global_set_element(ID,GID),!, |
| 2268 | | (b_global_deferred_set(GID) |
| 2269 | | -> Kind = deferred_set_element ; Kind = enumerated_set_element), |
| 2270 | | b_get_machine_set(GID,TGID), |
| 2271 | | Type = global(ID), |
| 2272 | | all_elements_of_type(GID,All), |
| 2273 | | translate:translate_span_with_filename(TGID,OriginStr), OriginTerm=TGID, |
| 2274 | | Source = b(equal(TGID,b(value(All),set(Type),[])),pred,[]). |
| 2275 | | source_code_for_identifier(ID,definition,Type,OriginStr,OriginTerm,Source) :- |
| 2276 | | b_get_definition(ID,DefType,Args,RawExpr,_Deps),!, |
| 2277 | | Type = DefType, |
| 2278 | | % Definitions are only present in RAW form |
| 2279 | | get_raw_position_info(RawExpr,PosInfo), |
| 2280 | | translate:translate_span_with_filename(PosInfo,OriginStr), % the position info does not always seem to be valid (when coming from DEFINITION FILE) !??! TO DO fix |
| 2281 | | OriginTerm=PosInfo, |
| 2282 | | source_code_for_definition(DefType,ID,Args,RawExpr,Source). |
| 2283 | | source_code_for_identifier(ID,file,Type,OriginStr,OriginTerm,b(string(Source),string,[])) :- |
| 2284 | | b_filenumber(ID,Kind,_,Filename), |
| 2285 | | extension_kind(Kind,Type), |
| 2286 | | !, |
| 2287 | | ajoin([Type,' ',ID],Source), |
| 2288 | | OriginTerm =src_position_with_filename(1,0,0,Filename), |
| 2289 | | OriginStr = Filename. |
| 2290 | | source_code_for_identifier(ID,Kind,subst,OriginStr,OriginTerm,Source) :- |
| 2291 | | b_find_operation(ID,Res,TParas,Body,OType), |
| 2292 | | (OType=classic -> Kind = operation ; Kind=event), |
| 2293 | | translate:translate_span_with_filename(Body,OriginStr),Body=OriginTerm, |
| 2294 | | get_texpr_info(Body,Info), |
| 2295 | | Source=b(operation(b(identifier(ID),subst,[]),Res,TParas,Body),subst,Info). |
| 2296 | | source_code_for_identifier(ID,assertion,pred,OriginStr,OriginTerm,Assertion) :- |
| 2297 | | b_get_assertions(all,_,Ass), member(Assertion,Ass), |
| 2298 | | get_texpr_label(Assertion,ID), OriginTerm = Assertion, |
| 2299 | | translate:translate_span_with_filename(Assertion,OriginStr). |
| 2300 | | source_code_for_identifier(ID,invariant,pred,OriginStr,OriginTerm,Invariant) :- |
| 2301 | | b_get_invariant_from_machine(C), conjunction_to_list(C,L), member(Invariant,L), |
| 2302 | | get_texpr_label(Invariant,ID), OriginTerm = Invariant, |
| 2303 | | translate:translate_span_with_filename(Invariant,OriginStr). |
| 2304 | | % TO DO: look for invariant labels as ids ? |
| 2305 | | |
| 2306 | | :- use_module(tools,[ split_last/4 ]). |
| 2307 | | b_find_operation(ID,Res,TParas,Body,OType) :- |
| 2308 | | b_get_machine_operation(ID,Res,TParas,Body,OType,_Pos). |
| 2309 | | b_find_operation(ID,Res,TParas,Body,OType) :- |
| 2310 | | b_get_machine_operation(ID2,Res,TParas,Body,OType,_Pos), |
| 2311 | | split_last(ID2, '.', _, ID). |
| 2312 | | |
| 2313 | | extension_kind(mch,'MACHINE'). |
| 2314 | | extension_kind(ref,'REFINEMENT'). |
| 2315 | | extension_kind(def,'DEFINITIONS FILE'). |
| 2316 | | extension_kind(imp,'IMPLEMENTATION'). |
| 2317 | | |
| 2318 | | source_code_for_definition(predicate,ID,_,RawExpr,Source) :- |
| 2319 | | b_type_open_exists_predicate(RawExpr,Typed,Errors), |
| 2320 | | (no_real_perror_occurred(Errors) -> true ; debug_println(9,errs(ID,Errors))), |
| 2321 | | Source=Typed. |
| 2322 | | source_code_for_definition(expression,ID,Args,RawExpr,Source) :- |
| 2323 | | % TO DO: add parameters to avoid type errors; but we get Typed anyway |
| 2324 | | b_type_expression(RawExpr,[prob_ids(visible),variables],Type,Typed,Errors), |
| 2325 | | (no_real_perror_occurred(Errors) -> true ; debug_println(9,errs(ID,Args,Type,Errors))), |
| 2326 | | Source=Typed. |
| 2327 | | % TO DO: treate substitutions |
| 2328 | | source_code_for_definition(DefType,ID,_Args,_RawExpr,Source) :- |
| 2329 | | Source=b(identifier(ID),DefType,[]). |
| 2330 | | |
| 2331 | | :- use_module(b_global_sets,[lookup_global_constant/2,prob_deferred_set_element/4]). |
| 2332 | | global_set_element(ID,GlobalSetID) :- lookup_global_constant(ID,fd(_,GlobalSetID)). |
| 2333 | | global_set_element(ID,GlobalSetID) :- |
| 2334 | | prob_deferred_set_element(GlobalSetID,_Elem,ID,all). |
| 2335 | | |
| 2336 | | get_constant_span(ID,Span) :- |
| 2337 | | b_get_machine_constants(Constants), |
| 2338 | | TID = b(identifier(ID),_,Span), |
| 2339 | | member(TID,Constants). |
| 2340 | | |
| 2341 | | get_constant_type_and_origin(ID,Type,OriginStr,OriginTerm) :- |
| 2342 | | b_get_machine_constants(Constants), |
| 2343 | | TID = b(identifier(ID),Type,_Infos), |
| 2344 | | member(TID,Constants), |
| 2345 | | % we could also use member(origin(Origin),Infos) |
| 2346 | | translate:translate_span_with_filename(TID,OriginStr), OriginTerm=TID. |
| 2347 | | get_variable_type_and_origin(ID,Type,OriginStr,OriginTerm) :- |
| 2348 | | b_get_machine_variables(Vars), |
| 2349 | | TID = b(identifier(ID),Type,_Infos), |
| 2350 | | member(TID,Vars), |
| 2351 | | % we could also use member(origin(Origin),Infos) |
| 2352 | | translate:translate_span_with_filename(TID,OriginStr), OriginTerm=TID. |
| 2353 | | |
| 2354 | | get_constant_definition(ID,FullDef) :- |
| 2355 | | b_get_properties_from_machine(Prop), |
| 2356 | | EqDef = b(equal(LHS,RHS),pred,_), |
| 2357 | | member_in_conjunction_cse(FullDef,EqDef,Prop), |
| 2358 | | (get_texpr_id(LHS,ID) ; get_texpr_id(RHS,ID)). |
| 2359 | | |
| 2360 | | get_constant_predicate(ID,FullPred) :- |
| 2361 | | b_get_properties_from_machine(Prop), |
| 2362 | | member_in_conjunction_cse(FullPred,Pred,Prop), |
| 2363 | | involves_id(Pred,ID). |
| 2364 | | involves_id(ID,b(E,_,_)) :- involves_id_aux(E,ID). |
| 2365 | | involves_id_aux(member(LHS,_),ID) :- get_texpr_id(LHS,ID). |
| 2366 | | involves_id_aux(subset(LHS,_),ID) :- get_texpr_id(LHS,ID). |
| 2367 | | involves_id_aux(subset_strict(LHS,_),ID) :- get_texpr_id(LHS,ID). |
| 2368 | | |
| 2369 | | :- volatile b_get_definition_name_with_pos/4. |
| 2370 | | :- dynamic b_get_definition_name_with_pos/4. |
| 2371 | | :- public b_get_definition_name_with_pos_calc/4. |
| 2372 | | b_get_definition_name_with_pos_calc(Name,Arity,DefType,DefPos) :- |
| 2373 | ? | b_get_definition_with_pos(Name,DefType,DefPos,Args,_RawExpr,_Deps), |
| 2374 | | length(Args,Arity). |
| 2375 | | |
| 2376 | | :- volatile b_get_machine_setscope/2. |
| 2377 | | :- dynamic b_get_machine_setscope/2. |
| 2378 | | :- public b_get_machine_setscope_calc/2. |
| 2379 | | % precompiled: definitions of the form "scope_SET == Expr", |
| 2380 | | % Set is the name of the Set, TExpr the typed expression |
| 2381 | | b_get_machine_setscope_calc(Set,TExpr) :- |
| 2382 | | b_definition_prefixed(expression, scope_, Set, Name,_), |
| 2383 | | % TO DO: check if it is a SET |
| 2384 | | b_get_typed_definition(Name,[constants],TExpr). % [constants] scope so that we have access to other definitions |
| 2385 | | |
| 2386 | | |
| 2387 | | % get a specific MAX_OPERATIONS Value for an operation |
| 2388 | | % precompiled: definitions of the form "MAX_OPERATIONS_OpName == Expr" |
| 2389 | | :- volatile b_get_machine_operation_max/2, b_get_machine_operation_time_out/2. |
| 2390 | | :- dynamic b_get_machine_operation_max/2, b_get_machine_operation_time_out/2. |
| 2391 | | :- public b_get_machine_operation_max_calc/2, b_get_machine_operation_time_out_calc/2. |
| 2392 | | |
| 2393 | | b_get_machine_operation_max_calc(OpName,MaxOp) :- |
| 2394 | | b_get_machine_operation_integer_def('MAX_OPERATIONS_', |
| 2395 | | ' (negative numbers means using randomised restart)', OpName,MaxOp). |
| 2396 | | b_get_machine_operation_time_out_calc(OpName,TimeOut) :- |
| 2397 | | b_get_machine_operation_integer_def('TIME_OUT_','', OpName,TimeOut). |
| 2398 | | |
| 2399 | | :- use_module(probsrc(pref_definitions),[compute_static_expr_for_pref/3]). |
| 2400 | | :- use_module(probsrc(tools_matching), [get_possible_operation_matches_msg/2]). |
| 2401 | | b_get_machine_operation_integer_def(DefPrefix,AdditionalMsg,FullOpName,MaxOp) :- |
| 2402 | | b_definition_prefixed(expression,DefPrefix,OpName,Name,DefPos), |
| 2403 | | (b_is_operation_name_or_init_step(OpName) -> FullOpName=OpName |
| 2404 | | ; b_top_level_operation_without_machine_prefix(OpName,_) -> |
| 2405 | | % we have found a full operation Machine.OpName (there could be more) |
| 2406 | | % Note: user can currently not use . inside definition names |
| 2407 | | b_top_level_operation_without_machine_prefix(OpName,FullOpName), % there could be more matches |
| 2408 | | ajoin(['Assuming DEFINITION refers to operation ', FullOpName,': '], Msg), |
| 2409 | | add_message(b_get_machine_operation_integer_def,Msg,Name,DefPos) |
| 2410 | | ; get_possible_operation_matches_msg(OpName,FMsg) -> |
| 2411 | | ajoin(['Unknown operation in DEFINITION (did you mean ',FMsg,' ?) : '], Msg), |
| 2412 | | add_warning(b_get_machine_operation_integer_def,Msg,Name,DefPos), |
| 2413 | | fail |
| 2414 | | ; add_warning(b_get_machine_operation_integer_def,'Unknown operation in DEFINITION: ',Name,DefPos), |
| 2415 | | fail |
| 2416 | | ), |
| 2417 | | (b_get_typed_definition(Name,[constants],DEF) -> compute_static_expr_for_pref(DEF,Name,Val) ; DEF='??'), |
| 2418 | | (Val=int(MaxOp) |
| 2419 | | % TO DO: check if it is an operation, use compute_static_expr from pref_definitions |
| 2420 | | %, MaxOp >= 0 we now use negative numbers for randomised restart for MAX_OPERATIONS |
| 2421 | | -> true |
| 2422 | | ; ajoin(['Definition ',Name,' must specify an integer',AdditionalMsg,': '],Msg), |
| 2423 | | add_warning(b_get_machine_operation_integer_def,Msg,DEF,DefPos), |
| 2424 | | fail |
| 2425 | | ). |
| 2426 | | |
| 2427 | | b_is_operation_name_or_init_step(Event) :- |
| 2428 | | (b_is_operation_name(Event) ; Event='INITIALISATION' ; Event='SETUP_CONSTANTS'). |
| 2429 | | |
| 2430 | | :- volatile b_get_machine_goal/1. |
| 2431 | | :- dynamic b_get_machine_goal/1. |
| 2432 | | :- public b_get_machine_goal_calc/1. |
| 2433 | | % precompiled: definition of GOAL, a typed predicate |
| 2434 | ? | b_get_machine_goal_calc(TPred) :- get_goal(TPred). |
| 2435 | | |
| 2436 | | b_reset_machine_goal_from_DEFINITIONS :- |
| 2437 | | get_goal(TPred), |
| 2438 | | b_set_parsed_typed_machine_goal(TPred). |
| 2439 | | get_goal(Goal) :- |
| 2440 | | get_proz_settings(Settings),memberchk(goal(Goal),Settings),!. |
| 2441 | | get_goal(Goal) :- % print(getting_goal),nl, |
| 2442 | | get_texpr_type(Goal,pred), |
| 2443 | ? | b_get_typed_predicate_definition('GOAL',[variables_and_additional_defs],Goal). |
| 2444 | | |
| 2445 | | :- volatile b_get_machine_searchscope/1. |
| 2446 | | :- dynamic b_get_machine_searchscope/1. |
| 2447 | | :- public b_get_machine_searchscope_calc/1. |
| 2448 | | % precompiled: definition of SCOPE, a typed predicate |
| 2449 | | b_get_machine_searchscope_calc(TPred) :- |
| 2450 | | get_texpr_type(TPred,pred), |
| 2451 | | b_get_typed_definition('SCOPE',[variables_and_additional_defs],TPred). |
| 2452 | | |
| 2453 | | :- volatile b_get_definition_string_from_machine/3. |
| 2454 | | :- dynamic b_get_definition_string_from_machine/3. |
| 2455 | | :- public b_get_definition_string_from_machine_calc/3. |
| 2456 | | % precompiled: string definitions, Name == "String" |
| 2457 | | b_get_definition_string_from_machine(Name,String) :- |
| 2458 | | b_get_definition_string_from_machine(Name,_,String). |
| 2459 | | b_get_definition_string_from_machine_calc(Name,Pos,String) :- |
| 2460 | ? | b_get_definition_name_with_pos(Name,0,expression,_), % pre-computed, check if exists first |
| 2461 | ? | b_get_definition(Name,expression,[],string(Pos,Str),_Deps), |
| 2462 | | get_texpr_expr(TExpr,string(String)), |
| 2463 | | type_with_errors_in_context(string(Pos,Str),[],_,TExpr,machine_context,warning). |
| 2464 | | |
| 2465 | | get_animation_image(Nr,S) :- |
| 2466 | | animation_minor_mode(z), |
| 2467 | | get_proz_animation_function(_,_,Images),!, |
| 2468 | | nth1(Nr,Images,S). |
| 2469 | | get_animation_image(Nr,S) :- number(Nr),!, |
| 2470 | | number_codes(Nr,TailCodes), |
| 2471 | | /* ANIMATION_IMG */ |
| 2472 | | atom_codes(Def_Name,[65,78,73,77,65,84,73,79,78,95,73,77,71|TailCodes]), |
| 2473 | | b_get_definition_string_from_machine(Def_Name,S). |
| 2474 | | get_animation_image(Nr,S) :- |
| 2475 | | b_get_definition_string_from_machine(Def_Name,S), |
| 2476 | | /* ANIMATION_IMG */ |
| 2477 | | atom_codes(Def_Name,[65,78,73,77,65,84,73,79,78,95,73,77,71|TailCodes]), |
| 2478 | | number_codes(Nr,TailCodes). |
| 2479 | | |
| 2480 | | :- use_module(error_manager,[extract_file_number_and_name/3]). |
| 2481 | | :- use_module(specfile,[b_or_z_mode/0]). |
| 2482 | | get_animation_image_source_file(Nr,File) :- b_or_z_mode, |
| 2483 | | % get source file where Animation image is defined; relevant for finding images |
| 2484 | | b_get_definition_string_from_machine(Def_Name,Pos,_), |
| 2485 | | atom_codes(Def_Name,[65,78,73,77,65,84,73,79,78,95,73,77,71|TailCodes]), |
| 2486 | | number_codes(Nr,TailCodes), |
| 2487 | | extract_file_number_and_name(Pos,_,File). |
| 2488 | | |
| 2489 | | get_proz_animation_function(Function,Default,Images) :- |
| 2490 | | get_proz_settings(Settings), |
| 2491 | | memberchk(animation_function(Function,Default,Images),Settings). |
| 2492 | | get_proz_settings(Settings) :- |
| 2493 | | machine(_,Sections),memberchk(meta/Meta,Sections), |
| 2494 | | memberchk(proz_settings(Settings),Meta). |
| 2495 | | |
| 2496 | | |
| 2497 | | :- volatile b_get_machine_animation_function/2. |
| 2498 | | :- dynamic b_get_machine_animation_function/2. |
| 2499 | | :- public b_get_machine_animation_function_calc/2. |
| 2500 | | :- use_module(tools,[safe_number_codes/2]). |
| 2501 | | :- use_module(bsyntaxtree,[is_set_type/2]). |
| 2502 | | % precompiled: definition of ANIMATION_FUNCTION, a typed expression |
| 2503 | | b_get_machine_animation_function_calc(AFun,Nr) :- |
| 2504 | | get_proz_animation_function(TFun,Default,_),!, |
| 2505 | | ( Nr = -1, AFun = Default |
| 2506 | | ; Nr = 0, TFun \= none, AFun=TFun |
| 2507 | | ). |
| 2508 | | b_get_machine_animation_function_calc(TFun,Nr) :- |
| 2509 | | get_definition_with_nr_suffix("ANIMATION_FUNCTION",Nr,Def_Name), |
| 2510 | | b_get_typed_expression_definition(Def_Name,[variables_and_additional_defs],TFun), |
| 2511 | | % only type it afterwards; avoid throwing type errors for other definitions |
| 2512 | | get_texpr_type(TFun,Type), |
| 2513 | | (is_set_type(Type,couple(_,_)) -> true |
| 2514 | | ; add_warning(b_get_machine_animation_function_calc,'Illegal type for ANIMATION_FUNCTION: ',Def_Name:Type,TFun), |
| 2515 | | fail). |
| 2516 | | |
| 2517 | | |
| 2518 | | :- volatile b_get_machine_heuristic_function/1. |
| 2519 | | :- dynamic b_get_machine_heuristic_function/1. |
| 2520 | | :- public b_get_machine_heuristic_function_calc/1. |
| 2521 | | b_get_machine_heuristic_function_calc(TFun) :- %print(extracting_heuristic_fun(TFun)),nl, |
| 2522 | | get_texpr_type(TFun,integer), |
| 2523 | | b_get_typed_expression_definition('HEURISTIC_FUNCTION',[variables_and_additional_defs],TFun), |
| 2524 | | % variables_and_additional_defs necessary if we add HEURISTIC_FUNCTION from an auxiliary definition file (e.g. for .eventb files) using b_load_additional_definitions_file; same holds for other definitions |
| 2525 | | debug_format(19,'HEURISTIC_FUNCTION DEFINITION detected~n',[]). |
| 2526 | | |
| 2527 | | :- volatile b_get_machine_animation_expression/2. |
| 2528 | | :- dynamic b_get_machine_animation_expression/2. |
| 2529 | | :- public b_get_machine_animation_expression_calc/2. |
| 2530 | | b_get_machine_animation_expression_calc(STR,AExpr) :- %print(extracting_heuristic_fun(TFun)),nl, |
| 2531 | ? | useful_animation_expression(STR), |
| 2532 | | b_get_typed_expression_definition(STR,[variables_and_additional_defs],AExpr). |
| 2533 | | b_get_machine_animation_expression_calc(DefName,AExpr) :- |
| 2534 | | b_definition_prefixed(_,'ANIMATION_EXPRESSION',_,DefName,_DefPos), |
| 2535 | | b_get_typed_expression_definition(DefName,[variables_and_additional_defs],AExpr). |
| 2536 | | |
| 2537 | | %useful_animation_expression('ANIMATION_EXPRESSION'). % for state viewer |
| 2538 | | useful_animation_expression('GAME_PLAYER'). % for MCTS, should return "min" or "max" |
| 2539 | | useful_animation_expression('GAME_OVER'). |
| 2540 | | useful_animation_expression('GAME_VALUE'). |
| 2541 | | useful_animation_expression('GAME_MCTS_RUNS'). |
| 2542 | | useful_animation_expression('GAME_MCTS_TIMEOUT'). |
| 2543 | | useful_animation_expression('GAME_MCTS_CACHE_LAST_TREE'). |
| 2544 | | |
| 2545 | | |
| 2546 | | % Custom nodes and edges for a custom graph representation of a state |
| 2547 | | :- volatile b_get_machine_custom_nodes_function/2, b_get_machine_custom_edges_function/2, |
| 2548 | | b_get_machine_custom_graph_function/2. |
| 2549 | | :- dynamic b_get_machine_custom_nodes_function/2, b_get_machine_custom_edges_function/2, |
| 2550 | | b_get_machine_custom_graph_function/2. |
| 2551 | | :- public b_get_machine_custom_nodes_function_calc/2. |
| 2552 | | b_get_machine_custom_nodes_function_calc(TFun,Nr) :- |
| 2553 | | get_definition_with_nr_suffix("CUSTOM_GRAPH_NODES",Nr,Def_Name), |
| 2554 | | b_get_typed_expression_definition(Def_Name,[variables_and_additional_defs],TFun). |
| 2555 | | :- public b_get_machine_custom_edges_function_calc/2. |
| 2556 | | b_get_machine_custom_edges_function_calc(TFun,Nr) :- |
| 2557 | | get_definition_with_nr_suffix("CUSTOM_GRAPH_EDGES",Nr,Def_Name), |
| 2558 | | b_get_typed_expression_definition(Def_Name,[variables_and_additional_defs],TFun). |
| 2559 | | :- public b_get_machine_custom_graph_function_calc/2. |
| 2560 | | b_get_machine_custom_graph_function_calc(TFun,Nr) :- |
| 2561 | | get_definition_with_nr_suffix("CUSTOM_GRAPH",Nr,Def_Name), % single function for graph attributes, possibly edges and nodes |
| 2562 | | b_get_typed_expression_definition(Def_Name,[variables_and_additional_defs],TFun). |
| 2563 | | |
| 2564 | | |
| 2565 | | get_definition_with_nr_suffix(Prefix,Nr,Def_Name) :- |
| 2566 | ? | b_get_definition_name_with_pos(Def_Name,0,expression,_), |
| 2567 | | atom_codes(Def_Name,AC), |
| 2568 | | append(Prefix,TailCodes,AC), |
| 2569 | | (TailCodes=[] -> Nr=0 |
| 2570 | | ; TailCodes = "_DEFAULT" -> Nr = -1 |
| 2571 | | ; safe_number_codes(Nr,TailCodes)). |
| 2572 | | |
| 2573 | | |
| 2574 | | % ------------------------ |
| 2575 | | |
| 2576 | | :- volatile b_get_constant_represented_inside_global_set/2. |
| 2577 | | :- dynamic b_get_constant_represented_inside_global_set/2. |
| 2578 | | |
| 2579 | | :- public b_get_constant_represented_inside_global_set_calc/2. |
| 2580 | | b_get_constant_represented_inside_global_set_calc(X,GlobalSetName) :- |
| 2581 | | b_get_disjoint_constants_of_type(GlobalSetName, DisjointConstants,_), |
| 2582 | ? | member(X,DisjointConstants). /* X will be integrated into the global_set */ |
| 2583 | | |
| 2584 | | |
| 2585 | | :- volatile b_get_disjoint_constants_of_type/3. |
| 2586 | | :- dynamic b_get_disjoint_constants_of_type/3. |
| 2587 | | :- public b_get_disjoint_constants_of_type_calc/3. |
| 2588 | | b_get_disjoint_constants_of_type_calc(GlobalSetName, DisjointConstants, AllConstantsIDs) :- |
| 2589 | | b_get_machine_all_constants(Constants), /* get all the constants */ |
| 2590 | | b_get_properties_from_machine(Properties), |
| 2591 | ? | b_get_machine_set(GlobalSetName), |
| 2592 | | \+ b_get_named_machine_set(GlobalSetName,_), % not an explicitly enumerated set |
| 2593 | | find_constant_ids_of_type(Constants,GlobalSetName,AllConstantsIDs), |
| 2594 | | find_inequal_global_set_identifiers(AllConstantsIDs,global(GlobalSetName),Properties,DisjointConstants), |
| 2595 | | DisjointConstants \= [], |
| 2596 | | debug_println(9,disjoint_enumerated_constants(GlobalSetName,DisjointConstants)). |
| 2597 | | % TO DO: remove from Properties irrelevant conjuncts; sort AllConstantsIDs by having first those with max disequalities |
| 2598 | | |
| 2599 | | find_constant_ids_of_type([],_GS,[]) :- !. |
| 2600 | | find_constant_ids_of_type([b(identifier(ID),global(GS),_)|T], GS, [ID|IT]) :- !, |
| 2601 | | find_constant_ids_of_type(T,GS,IT). |
| 2602 | | find_constant_ids_of_type([b(_,_,_)|T], GS, IT) :- !, find_constant_ids_of_type(T,GS,IT). |
| 2603 | | find_constant_ids_of_type(X,GS,_) :- print(find_constant_ids_of_type_error(X,GS)),nl,fail. |
| 2604 | | |
| 2605 | | |
| 2606 | | % ------------------------ |
| 2607 | | :- volatile b_get_all_used_identifiers_in_section/2. |
| 2608 | | :- dynamic b_get_all_used_identifiers_in_section/2. |
| 2609 | | :- public b_get_all_used_identifiers_in_section_calc/2. |
| 2610 | | |
| 2611 | | % Note: may contain var$0 instead of var for becomes_such |
| 2612 | | b_get_all_used_identifiers_in_section_calc(SECTION,Identifiers) :- |
| 2613 | | full_b_machine(BMachine), |
| 2614 | ? | member(SECTION,[constraints,properties,invariant,assertions, |
| 2615 | | initialisation,operation_bodies]), |
| 2616 | | findall(I, find_used_identifier_in_machine_section(BMachine,SECTION,I), Ids), |
| 2617 | | %print(section_ids(SECTION,Ids)),nl, |
| 2618 | | sort(Ids,Identifiers). |
| 2619 | | |
| 2620 | | :- volatile b_get_all_used_identifiers/1. |
| 2621 | | :- dynamic b_get_all_used_identifiers/1. |
| 2622 | | :- public b_get_all_used_identifiers_calc/1. |
| 2623 | | :- use_module(library(ordsets),[ord_union/2]). |
| 2624 | | % Precompiled: b_get_all_used_identifiers_calc/1 returns a list of all |
| 2625 | | % identifiers used in machine sections that contain expressions and predicates |
| 2626 | | b_get_all_used_identifiers_calc(Identifiers) :- |
| 2627 | | findall(I, b_get_all_used_identifiers_in_section(_,I), ListOfList), |
| 2628 | | ord_union(ListOfList,Identifiers). % ,print(all(Identifiers)),nl. |
| 2629 | | |
| 2630 | | find_used_identifier_in_machine_section(Machine,Sec,Identifier) :- |
| 2631 | | % treat it like a list of expressions |
| 2632 | | get_section_texprs(Sec,Machine,TExprs), |
| 2633 | | % and find all identifiers in each expression |
| 2634 | ? | member(TExpr,TExprs), |
| 2635 | | find_identifier_uses(TExpr,[],Ids), |
| 2636 | ? | member(Identifier,Ids). |
| 2637 | | |
| 2638 | | :- volatile b_is_unused_constant/1. |
| 2639 | | :- dynamic b_is_unused_constant/1. |
| 2640 | | :- public b_is_unused_constant_calc/1. |
| 2641 | | b_is_unused_constant_calc(UnusedConstant) :- |
| 2642 | | findall(C,b_is_constant(C),CL), %b_get_machine_constants(Constants), gives typed ids |
| 2643 | | CL\=[] ,sort(CL,Constants), |
| 2644 | | b_get_all_used_identifiers_in_section(invariant,I1), |
| 2645 | | b_get_all_used_identifiers_in_section(assertions,I2), |
| 2646 | | b_get_all_used_identifiers_in_section(initialisation,I3), |
| 2647 | | b_get_all_used_identifiers_in_section(operation_bodies,I4), |
| 2648 | | % TODO: get constants used in VisB definitions |
| 2649 | | ord_union([I1,I2,I3,I4],UsedIds), |
| 2650 | | %print(used(UsedIds)),nl, |
| 2651 | | ord_subtract(Constants,UsedIds,UnusedConstants), |
| 2652 | | UnusedConstants\=[], |
| 2653 | | (b_get_machine_variables([]) -> true |
| 2654 | | ; length(UnusedConstants,NrUC), |
| 2655 | | (silent_mode(on) -> true |
| 2656 | | ; (NrUC>10,debug_mode(off),UnusedConstants=[C1,C2|_]) -> |
| 2657 | | print_message_with_max_depth(unused_constants(NrUC,[C1,C2,'...']),500) |
| 2658 | | ; print_message_with_max_depth(unused_constants(NrUC,UnusedConstants),500)) |
| 2659 | | ), |
| 2660 | ? | member(UnusedConstant,UnusedConstants). |
| 2661 | | |
| 2662 | | |
| 2663 | | % precompiled: Skel is the operation skeleton, SpecializedInv a typed predicate |
| 2664 | | % (Skel,SpecializedInv) :- |
| 2665 | | % b_get_machine_operation(Name,_Res,Params,_Body), |
| 2666 | | % atom_concat('SIMPLIFIED_INV_OP_',Name,ASNC), |
| 2667 | | % b_get_typed_definition(ASNC,[variables,identifiers(Params)],SpecializedInv), |
| 2668 | | % length(Params,Len), |
| 2669 | | % functor(Skel,Name,Len), |
| 2670 | | % print(b_specialized_invariant_for_op(Skel)). |
| 2671 | | |
| 2672 | | |
| 2673 | | get_section_from_current_machine(Section,Content) :- |
| 2674 | | full_b_machine(BMachine), |
| 2675 | | get_section(Section,BMachine,Content). |
| 2676 | | |
| 2677 | | is_ground(X,R) :- ground(X),!,R=ground. |
| 2678 | | is_ground(_,nonground). |
| 2679 | | |
| 2680 | | b_set_empty_machine :- debug_println(9,setting_empty_machine), |
| 2681 | | empty_machine(Main,Machines), |
| 2682 | | b_set_machine(Main,Machines,[]). |
| 2683 | | |
| 2684 | | b_get_machine_refinement_hierarchy(Hierarchy) :- |
| 2685 | | \+ machine(_Name,_M),!,Hierarchy=[]. %No B Machine loaded |
| 2686 | | b_get_machine_refinement_hierarchy(Hierarchy) :- |
| 2687 | | get_section_from_current_machine(meta,Infos), |
| 2688 | | member(hierarchy/Hierarchy,Infos),!. |
| 2689 | | |
| 2690 | | b_get_refined_machine_name(Machine) :- |
| 2691 | | b_get_machine_refinement_hierarchy([_Main,Machine|_Rest]). |
| 2692 | | b_get_refined_ancestors_names(list(AncestorList)) :- |
| 2693 | | b_get_machine_refinement_hierarchy([_Main|AncestorList]). |
| 2694 | | b_get_refined_machine(M) :- |
| 2695 | | get_section_from_current_machine(meta,Infos), |
| 2696 | | member(refined_machine/M,Infos), !. |
| 2697 | | |
| 2698 | | |
| 2699 | | |
| 2700 | | b_get_machine_header_position(MachName,Position) :- |
| 2701 | | get_section_from_current_machine(meta,Infos), |
| 2702 | | member(header_pos/HeaderPosList,Infos), |
| 2703 | | % List with elements MachineName/PositionOfMachineHeader |
| 2704 | | member(MachName/Position,HeaderPosList). |
| 2705 | | |
| 2706 | | % model type can be system for Atelier-B Event-B |
| 2707 | | b_get_model_type(M) :- |
| 2708 | | get_section_from_current_machine(meta,Infos), |
| 2709 | | member(model_type/M,Infos), !. |
| 2710 | | |
| 2711 | | % TODO(DP,6.8.2008) |
| 2712 | | :- volatile b_machine_temp_predicate/1. |
| 2713 | | :- dynamic b_machine_temp_predicate/1. |
| 2714 | | |
| 2715 | | %set_temp_predicate(CustomPredicate) :- |
| 2716 | | % b_parse_machine_predicate(CustomPredicate,TypedPred), |
| 2717 | | % assert_temp_typed_predicate(TypedPred). |
| 2718 | | % |
| 2719 | | %% set a temporary predicate as additional guard |
| 2720 | | %set_temp_predicate(CustomPredicate,'$initialise_machine') :- !,set_temp_predicate(CustomPredicate). |
| 2721 | | %set_temp_predicate(CustomPredicate,'$setup_constants') :- !,set_temp_predicate(CustomPredicate). |
| 2722 | | %set_temp_predicate(CustomPredicate,OpName) :- |
| 2723 | | % b_parse_machine_operation_pre_post_predicate(CustomPredicate,TypedPred, OpName,true), |
| 2724 | | % assert_temp_typed_predicate(TypedPred). |
| 2725 | | |
| 2726 | | % Note: it can be a good idea to use inline_prob_deferred_set_elements_into_bexpr/2 before: |
| 2727 | | assert_temp_typed_predicate(TypedPred) :- |
| 2728 | | reset_temp_predicate, |
| 2729 | | assertz(b_machine_temp_predicate(TypedPred)). |
| 2730 | | |
| 2731 | | |
| 2732 | | reset_temp_predicate :- retractall(b_machine_temp_predicate(_)). |
| 2733 | | |
| 2734 | | :- volatile b_machine_additional_property/1. |
| 2735 | | :- dynamic b_machine_additional_property/1. |
| 2736 | | |
| 2737 | | % additional properties for set_up_constants |
| 2738 | | % TO DO: check if there are constants/properties; otherwise raise warning |
| 2739 | | add_additional_property(CustomPredicate,Description) :- |
| 2740 | | format('Adding Property: ~w~n',[CustomPredicate]), |
| 2741 | | b_parse_machine_predicate(CustomPredicate,TypedPred), |
| 2742 | | add_texpr_info_if_new(TypedPred,description(Description),TP2), |
| 2743 | | assertz(b_machine_additional_property(TP2)). |
| 2744 | | |
| 2745 | | :- use_module(btypechecker, [unify_types_strict/2]). |
| 2746 | | :- use_module(bsyntaxtree, [safe_create_texpr/4]). |
| 2747 | | :- use_module(probsrc(translate), [pretty_type/2]). |
| 2748 | | |
| 2749 | | :- public b_extract_values_clause_assignment_calc/3. |
| 2750 | | b_extract_values_clause_assignment_calc(ID,Type,TVal) :- |
| 2751 | | % extract equalities from VALUES clause |
| 2752 | | get_section_from_current_machine(values,Values), |
| 2753 | | member(b(values_entry(TID,TVal),_,Info),Values), |
| 2754 | | get_texpr_id(TID,ID), |
| 2755 | | get_texpr_type(TID,Type), |
| 2756 | | debug_println(20,values_entry(ID,Type,TVal)), |
| 2757 | | (b_is_constant(ID,OtherType), |
| 2758 | | unify_types_strict(Type,OtherType) |
| 2759 | | -> (member(description(_),Info) -> Info1=Info |
| 2760 | | ; Info1=[description('from VALUES clause') | Info]), |
| 2761 | | safe_create_texpr(equal(TID,TVal),pred,Info1,Equality), |
| 2762 | | (debug_level_inactive_for(19) -> true ; add_message(bmachine,'Adding property for VALUES: ',Equality,Equality)), |
| 2763 | | assertz(b_machine_additional_property(Equality)), |
| 2764 | | (b_extract_values_clause_assignment(ID,_,_) |
| 2765 | | -> add_error(bmachine,'Multiple VALUES entries for constant: ',ID,TID) |
| 2766 | | ; true) |
| 2767 | | ; b_get_machine_set(ID) -> true % will be dealt with in b_global_sets for deferred sets |
| 2768 | | ; b_get_constant_represented_inside_global_set(ID,_) -> |
| 2769 | | add_message(bmachine,'Ignoring VALUES entry for constant (already detected as enumerated set element): ',ID,TID) |
| 2770 | | ; lookup_global_constant(ID,fd(_,GSET)) -> |
| 2771 | | ajoin(['Ignoring VALUES entry for element of enumerated set ',GSET,': '],Msg), |
| 2772 | | add_message(bmachine,Msg,ID,TID) |
| 2773 | | % TODO: detect case when this is a deferred set element not detected as (virtual) enumerated element |
| 2774 | | ; b_is_constant(ID,OtherType) -> pretty_type(OtherType,OT), pretty_type(Type,TT), |
| 2775 | | ajoin(['Cannot adapt value type ',TT,' to abstract type ',OT,', ignoring VALUES entry for: '],Msg), |
| 2776 | | add_warning(bmachine,Msg,ID,TID) |
| 2777 | | ; add_error(bmachine,'VALUES clause for unknown constant: ',ID,TID), |
| 2778 | | fail |
| 2779 | | ). |
| 2780 | | |
| 2781 | | |
| 2782 | | % ------------------- |
| 2783 | | |
| 2784 | | :- use_module(specfile,[unset_animation_minor_modes/1,reset_animation_minor_modes/1]). |
| 2785 | | :- use_module(translate,[set_unicode_mode/0, unset_unicode_mode/0, set_print_type_infos/1]). |
| 2786 | | b_show_machine_representation_unicode(Rep,AdditionalInfo,UnsetMinorModes,Unicode) :- |
| 2787 | | Unicode=true,!, |
| 2788 | | set_unicode_mode, |
| 2789 | | call_cleanup(b_show_machine_representation(Rep,AdditionalInfo,UnsetMinorModes,none),unset_unicode_mode). |
| 2790 | | b_show_machine_representation_unicode(Rep,AdditionalInfo,UnsetMinorModes,_) :- |
| 2791 | | b_show_machine_representation(Rep,AdditionalInfo,UnsetMinorModes,none). |
| 2792 | | |
| 2793 | | |
| 2794 | | % AdditionalInfo=true means show additional information as comments (promoted, ...) |
| 2795 | | % UnsetMinorModes will print in default classical B style |
| 2796 | | % TypeInfos: none, needed or all |
| 2797 | | b_show_machine_representation(Rep,AdditionalInfo,UnsetMinorModes,TypeInfos) :- |
| 2798 | | full_b_machine(BMachine), |
| 2799 | | (UnsetMinorModes==true -> unset_animation_minor_modes(L) ; L=[]), |
| 2800 | | set_print_type_infos(TypeInfos), |
| 2801 | | translate_machine(BMachine,Rep,AdditionalInfo), |
| 2802 | | set_print_type_infos(none), |
| 2803 | | (UnsetMinorModes==true -> reset_animation_minor_modes(L) ; true). |
| 2804 | | |
| 2805 | | :- use_module(tools_printing,[nested_write_term_to_codes/2]). |
| 2806 | | b_get_internal_prolog_representation_as_codes(Codes) :- |
| 2807 | | full_b_machine(BMachine), |
| 2808 | | nested_write_term_to_codes(BMachine,Codes). |
| 2809 | | |
| 2810 | | :- use_module(tools,[get_tail_filename/2,split_filename/3,safe_atom_chars/3]). |
| 2811 | | % TypingLevel = none, needed or all |
| 2812 | | b_write_machine_representation_to_file(TypingLevel,PPFILE) :- |
| 2813 | | b_write_machine_representation_to_file('$auto',TypingLevel,PPFILE). |
| 2814 | | b_write_machine_representation_to_file('$auto',TypingLevel,PPFILE) :- !, % automatically infer machine name |
| 2815 | | %get_full_b_machine(Name,M), |
| 2816 | | get_tail_filename(PPFILE,Tail), |
| 2817 | | split_filename(Tail,MachName,_Ext), |
| 2818 | | b_write_machine_representation_to_file3(MachName,TypingLevel,PPFILE). |
| 2819 | | b_write_machine_representation_to_file(MachName,TypingLevel,PPFILE) :- |
| 2820 | | % provide explicit machine name; useful for diff checks |
| 2821 | | b_write_machine_representation_to_file3(MachName,TypingLevel,PPFILE). |
| 2822 | | |
| 2823 | | :- use_module(translate,[set_print_type_infos/1]). |
| 2824 | | :- use_module(tools_files, [write_to_utf8_file_or_user_output/2]). |
| 2825 | | b_write_machine_representation_to_file3(MachName,Level,PPFILE) :- |
| 2826 | | debug_println(20,'% Pretty-Printing Internal Representation to File: '), |
| 2827 | | debug_println(20,PPFILE), |
| 2828 | | translate:set_print_type_infos(Level), % none, needed or all |
| 2829 | | get_full_b_machine(_Name,M), |
| 2830 | | (translate_machine_to_classicalb(MachName,M,Rep) |
| 2831 | | -> translate:set_print_type_infos(none) |
| 2832 | | ; add_internal_error('Translating machine failed: ',b_write_machine_representation_to_file3(MachName,Level,PPFILE)), |
| 2833 | | set_print_type_infos(none), |
| 2834 | | fail), |
| 2835 | | write_to_utf8_file_or_user_output(PPFILE,Rep). |
| 2836 | | |
| 2837 | | :- use_module(specfile). |
| 2838 | | translate_machine_to_classicalb(MachName,M,Rep) :- |
| 2839 | | temporary_set_preference(expand_avl_upto,-1,CHNG), % avoid printing sets using condensed # |
| 2840 | | (animation_minor_mode(X) |
| 2841 | | -> remove_animation_minor_mode, |
| 2842 | | call_cleanup(translate_machine(machine(MachName,M),Rep,false), set_animation_minor_mode(X)) |
| 2843 | | ; translate_machine(machine(MachName,M),Rep,false)), |
| 2844 | | reset_temporary_preference(expand_avl_upto,CHNG). |
| 2845 | | |
| 2846 | | b_write_eventb_machine_to_classicalb_to_file(PPFILE) :- |
| 2847 | | get_tail_filename(PPFILE,Tail), |
| 2848 | | split_filename(Tail,MachName,_Ext), |
| 2849 | | AdditionalInfo=true, |
| 2850 | | b_get_eventb_machine_as_classicalb_codes(MachName,AdditionalInfo,Rep), |
| 2851 | | write_to_utf8_file_or_user_output(PPFILE,Rep). |
| 2852 | | |
| 2853 | | :- use_module(preferences,[temporary_set_preference/3,reset_temporary_preference/2]). |
| 2854 | | b_get_eventb_machine_as_classicalb_codes(MachName,AdditionalInfo,Rep) :- |
| 2855 | | full_b_machine(machine(Name,MachineBody)), |
| 2856 | | (var(MachName) -> MachName=Name ; true), |
| 2857 | | % limit abstract level to 0 |
| 2858 | | b_limit_abstract_level_to_zero(MachineBody,MachineBodyLevel0), |
| 2859 | | temporary_set_preference(translate_print_typing_infos,true,CHNG), |
| 2860 | | temporary_set_preference(translate_ids_to_parseable_format,true,CHNG2), |
| 2861 | | temporary_set_preference(expand_avl_upto,-1,CHNG3), % avoid printing sets using condensed # |
| 2862 | | (translate_eventb_to_classicalb(machine(MachName,MachineBodyLevel0),AdditionalInfo,Rep) |
| 2863 | | -> reset_temporary_preference(translate_print_typing_infos,CHNG), |
| 2864 | | reset_temporary_preference(translate_ids_to_parseable_format,CHNG2), |
| 2865 | | reset_temporary_preference(expand_avl_upto,CHNG3) |
| 2866 | | ; add_internal_error('Translating Event-B machine to Classical B failed: ',b_get_eventb_machine_as_classicalb_codes(MachName,AdditionalInfo,Rep)), |
| 2867 | | reset_temporary_preference(translate_print_typing_infos,CHNG), |
| 2868 | | reset_temporary_preference(translate_ids_to_parseable_format,CHNG2), |
| 2869 | | reset_temporary_preference(expand_avl_upto,CHNG3), |
| 2870 | | fail). |
| 2871 | | |
| 2872 | | b_limit_abstract_level_to_zero(MachineBody,MachineBodyLevel0) :- |
| 2873 | | maplist(b_set_to_level_zero,MachineBody,MachineBodyLevel0). |
| 2874 | | |
| 2875 | | % TODO: set to level zero also the other events of the Event-B machine |
| 2876 | | b_set_to_level_zero(initialisation/InitEvent,initialisation/InitEventLevelZero) :- |
| 2877 | | get_texpr_expr(InitEvent,rlevent(Id,Sec,St,Par,Grd,Thms,Act,VW,PW,Ums,_Abs)), |
| 2878 | | get_texpr_info(InitEvent,Info), |
| 2879 | | create_texpr(rlevent(Id,Sec,St,Par,Grd,Thms,Act,VW,PW,Ums,[]),subst,Info,InitEventLevelZero). |
| 2880 | | b_set_to_level_zero(X,X). |
| 2881 | | |
| 2882 | | b_show_eventb_as_classicalb(Rep,AdditionalInfo) :- |
| 2883 | | full_b_machine(BMachine), |
| 2884 | | translate_eventb_to_classicalb(BMachine,AdditionalInfo,Rep). |
| 2885 | | |
| 2886 | | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 2887 | | |
| 2888 | | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 2889 | | % precompilation: predicates are precompiled by calling the ..._calc predicate |
| 2890 | | |
| 2891 | | :- use_module(state_packing). |
| 2892 | | :- use_module(tools,[start_ms_timer/1,stop_ms_walltimer_with_msg/2, stop_ms_timer_with_debug_msg/2]). |
| 2893 | | :- use_module(rulesdslsrc(rule_validation),[setup_rules_extras/0]). |
| 2894 | | % maybe this predicate should be directly called by b_load_machine |
| 2895 | | b_machine_precompile :- debug_println(9,'Precompiling B Machine'), |
| 2896 | | start_ms_timer(T1), |
| 2897 | | get_full_b_machine(_,_), |
| 2898 | | auto_precompile, |
| 2899 | | stop_ms_timer_with_debug_msg(T1,'auto_precompile: '), |
| 2900 | | precompile_operation_names_in_reverse_order, |
| 2901 | | % TODO(DP, 14.8.2008): remove reference to b_global_sets |
| 2902 | | start_ms_timer(T2), |
| 2903 | | b_check_and_precompile_deferred_sets, |
| 2904 | | stop_ms_timer_with_debug_msg(T2,'precompiling global sets: '), |
| 2905 | | % Now done in bmachine_construction:clean_up_machine but not yet for Event-B: |
| 2906 | | get_section_from_current_machine(freetypes,Freetypes),register_freetypes(Freetypes), |
| 2907 | | auto_precompile_phase2, |
| 2908 | | b_check_and_precompile_global_set_symmetry, |
| 2909 | | state_packing:precompile_state_packing, |
| 2910 | | do_machine_consistency_check, |
| 2911 | | try_kodkod, |
| 2912 | | (animation_minor_mode(rules_dsl) -> setup_rules_extras ; true), |
| 2913 | | stop_ms_timer_with_debug_msg(T1,'complete precompiling B machine: '). |
| 2914 | | |
| 2915 | | % recompile predicates which change when definitionss are loaded (e.g., CUSTOM_GRAPH or similar) |
| 2916 | | b_machine_recompile_for_new_defs :- |
| 2917 | | start_ms_timer(T1), |
| 2918 | | auto_recompile_for_new_defs, |
| 2919 | | stop_ms_timer_with_debug_msg(T1,'recompile for defs: '). |
| 2920 | | auto_recompile_for_new_defs :- |
| 2921 | | % failure-driven loop |
| 2922 | | (mandatory_pre_compilation_for_new_defs_or_mch(Pred/Arity) |
| 2923 | | ; requires_pre_compilation_for_new_defs(Pred/Arity) |
| 2924 | | ; precompiled_predicate_no_error_when_not_precompiled(Pred/Arity) |
| 2925 | | ), %print(precompile(Pred/Arity)),nl, |
| 2926 | | auto_precompile2(Pred,Arity,Pattern), |
| 2927 | | (Pattern -> true /* this pattern already asserted */ |
| 2928 | | ; assertz(Pattern)), fail. |
| 2929 | | auto_recompile_for_new_defs. |
| 2930 | | |
| 2931 | | auto_recompile_for_new_main_machine :- |
| 2932 | ? | mandatory_pre_compilation_for_new_defs_or_mch(Pred/Arity), |
| 2933 | | % required for b_get_preferences_from_specification / update_preferences_from_spec called beore b_machine_precompile |
| 2934 | ? | auto_precompile2(Pred,Arity,Pattern), |
| 2935 | | (Pattern -> true /* this pattern already asserted */ |
| 2936 | | ; assertz(Pattern)), fail. |
| 2937 | | auto_recompile_for_new_main_machine. |
| 2938 | | |
| 2939 | | % these need to be pre-compiled straightaway; so that b_get_preferences_from_specification works |
| 2940 | | mandatory_pre_compilation_for_new_defs_or_mch(b_get_definition_name_with_pos/4). |
| 2941 | | mandatory_pre_compilation_for_new_defs_or_mch(b_get_definition_string_from_machine/3). |
| 2942 | | |
| 2943 | | requires_pre_compilation_for_new_defs(b_get_machine_goal/1). |
| 2944 | | requires_pre_compilation_for_new_defs(b_get_machine_searchscope/1). |
| 2945 | | requires_pre_compilation_for_new_defs(b_get_machine_operation_max/2). % Note: requires b_operation_name to be precompiled |
| 2946 | | requires_pre_compilation_for_new_defs(b_get_machine_operation_time_out/2). % ditto |
| 2947 | | % following already covered in precompiled_predicate_no_error_when_not_precompiled: |
| 2948 | | %requires_pre_compilation_for_new_defs(b_get_machine_heuristic_function/1). |
| 2949 | | %requires_pre_compilation_for_new_defs(b_get_machine_custom_nodes_function/2). |
| 2950 | | %requires_pre_compilation_for_new_defs(b_get_machine_custom_graph_function/2). |
| 2951 | | |
| 2952 | | other_spec_precompile :- retractall(bmachine_is_precompiled), |
| 2953 | | /* call if you do not animate a B specification */ |
| 2954 | | is_precompiled_predicate(Pred/Arity), |
| 2955 | | functor(Pattern,Pred,Arity), |
| 2956 | | retractall(Pattern), |
| 2957 | | (precompiled_predicate_no_error_when_not_precompiled(Pred/Arity) |
| 2958 | | -> assertz( (Pattern :- fail )) |
| 2959 | | ; assertz( (Pattern :- print_message('No B machine available for '), print_message(Pattern), fail) ) |
| 2960 | | ), |
| 2961 | | fail. |
| 2962 | | other_spec_precompile :- |
| 2963 | | retractall(b_get_machine_constants(_)), |
| 2964 | | assertz( b_get_machine_constants([]) ), |
| 2965 | | retractall(b_get_machine_variables_in_original_order(_)), |
| 2966 | | assertz( b_get_machine_variables_in_original_order([]) ), |
| 2967 | | retractall(b_get_machine_variables(_)), |
| 2968 | | assertz( b_get_machine_variables([]) ), |
| 2969 | | retractall(b_get_static_assertions_from_machine(_)), |
| 2970 | | assertz( b_get_static_assertions_from_machine([]) ), |
| 2971 | | retractall(b_machine_has_static_assertions), |
| 2972 | | retractall(b_get_unproven_static_assertions_from_machine(_)), |
| 2973 | | assertz( b_get_unproven_static_assertions_from_machine([]) ), |
| 2974 | | retractall(b_get_dynamic_assertions_from_machine(_)), |
| 2975 | | assertz( b_get_dynamic_assertions_from_machine([]) ), |
| 2976 | | retractall(b_machine_has_dynamic_assertions), |
| 2977 | | retractall(b_get_unproven_dynamic_assertions_from_machine(_)), |
| 2978 | | assertz( b_get_unproven_dynamic_assertions_from_machine([]) ), |
| 2979 | | retractall( b_get_machine_searchscope(_) ), |
| 2980 | | retractall( b_get_machine_goal(_) ), |
| 2981 | | retractall( b_machine_name(_) ), |
| 2982 | | retractall( b_is_constant(_,_) ), |
| 2983 | | retractall( b_is_variable(_,_) ), |
| 2984 | | assert_bmachine_is_precompiled, debug_println(4,other_spec_precompile). |
| 2985 | | |
| 2986 | ? | is_precompiled_predicate(P) :- precompiled_predicate(P). |
| 2987 | ? | is_precompiled_predicate(P) :- precompiled_predicate_phase2(P). |
| 2988 | | |
| 2989 | | % phase 1 precompilation: required by b_global_sets |
| 2990 | | precompiled_predicate(b_machine_name/1). |
| 2991 | | precompiled_predicate(b_get_definition_name_with_pos/4). |
| 2992 | | precompiled_predicate(b_get_named_machine_set/3). |
| 2993 | | precompiled_predicate(b_enumerated_sets_precompiled/0). |
| 2994 | | precompiled_predicate(b_get_properties_from_machine/1). |
| 2995 | | precompiled_predicate(b_get_machine_all_constants/1). |
| 2996 | | precompiled_predicate(b_get_machine_set/2). |
| 2997 | | precompiled_predicate(b_get_disjoint_constants_of_type/3). |
| 2998 | | precompiled_predicate(b_get_constant_represented_inside_global_set/2). |
| 2999 | | precompiled_predicate(b_get_machine_constants/1). |
| 3000 | | precompiled_predicate(b_get_machine_variables_in_original_order/1). |
| 3001 | | precompiled_predicate(b_get_machine_variables/1). |
| 3002 | | precompiled_predicate(b_get_invariant_from_machine/1). |
| 3003 | | precompiled_predicate(b_get_linking_invariant_from_machine/1). |
| 3004 | | precompiled_predicate(b_is_constant/2). |
| 3005 | | precompiled_predicate(b_is_variable/2). |
| 3006 | | precompiled_predicate(b_get_constant_variable_description/2). |
| 3007 | | precompiled_predicate(b_get_static_assertions_from_machine/1). |
| 3008 | | precompiled_predicate(b_machine_has_static_assertions/0). |
| 3009 | | precompiled_predicate(b_get_unproven_static_assertions_from_machine/1). |
| 3010 | | precompiled_predicate(b_get_dynamic_assertions_from_machine/1). |
| 3011 | | precompiled_predicate(b_machine_has_dynamic_assertions/0). |
| 3012 | | precompiled_predicate(b_get_unproven_dynamic_assertions_from_machine/1). |
| 3013 | | precompiled_predicate(b_get_assertions_from_main_machine/2). |
| 3014 | | precompiled_predicate(b_get_initialisation_from_machine/2). |
| 3015 | | precompiled_predicate(b_get_machine_operation/6). |
| 3016 | | precompiled_predicate(b_top_level_operation/1). |
| 3017 | | precompiled_predicate(b_is_operation_name/1). |
| 3018 | | precompiled_predicate(b_top_level_operation_without_machine_prefix/2). |
| 3019 | | precompiled_predicate(b_top_level_feasible_operation/1). |
| 3020 | | precompiled_predicate(b_get_promoted_machine_operations/1). |
| 3021 | | precompiled_predicate(get_operation_info/2). |
| 3022 | | precompiled_predicate(b_get_machine_operation_for_animation/7). |
| 3023 | | precompiled_predicate(get_operation_description_template_expr/2). |
| 3024 | | precompiled_predicate(b_get_machine_goal/1). |
| 3025 | | precompiled_predicate(b_get_machine_setscope/2). |
| 3026 | | precompiled_predicate(b_get_machine_operation_max/2). |
| 3027 | | precompiled_predicate(b_get_machine_operation_time_out/2). |
| 3028 | | precompiled_predicate(b_get_machine_searchscope/1). |
| 3029 | | precompiled_predicate(b_get_definition_string_from_machine/3). |
| 3030 | | precompiled_predicate(b_get_machine_animation_function/2). |
| 3031 | | precompiled_predicate(b_get_machine_heuristic_function/1). |
| 3032 | | precompiled_predicate(b_get_machine_animation_expression/2). |
| 3033 | | precompiled_predicate(b_get_machine_custom_nodes_function/2). |
| 3034 | | precompiled_predicate(b_get_machine_custom_edges_function/2). |
| 3035 | | precompiled_predicate(b_get_machine_custom_graph_function/2). |
| 3036 | | precompiled_predicate(complete_discharged_info/0). % just call it before calling b_specialized_invariant_for_op_calc ! |
| 3037 | | precompiled_predicate(get_proven_invariant/2). |
| 3038 | | precompiled_predicate(b_nth1_invariant/3). |
| 3039 | | precompiled_predicate(b_nth1_invariant_is_ignored/1). |
| 3040 | | precompiled_predicate(b_invariant_number_list/1). |
| 3041 | | precompiled_predicate(b_specialized_invariant_mask_for_op/2). |
| 3042 | | precompiled_predicate(b_specialized_invariant_for_op/2). |
| 3043 | | precompiled_predicate(b_operation_preserves_invariant/2). |
| 3044 | | precompiled_predicate(b_get_all_used_identifiers_in_section/2). |
| 3045 | | precompiled_predicate(b_get_all_used_identifiers/1). |
| 3046 | | precompiled_predicate(b_is_unused_constant/1). |
| 3047 | | precompiled_predicate(b_extract_values_clause_assignment/3). % depends on b_is_constant/1 |
| 3048 | | precompiled_predicate(b_machine_statistics/2). |
| 3049 | | |
| 3050 | | % require b_global_sets to be initialised |
| 3051 | | precompiled_predicate_phase2(b_get_operation_normalized_read_write_info/3). |
| 3052 | | precompiled_predicate_phase2(b_get_operation_unchanged_variables/2). |
| 3053 | | precompiled_predicate_phase2(b_operation_cannot_modify_state/1). |
| 3054 | | precompiled_predicate_phase2(b_operation_reads_output_variables/3). |
| 3055 | | precompiled_predicate_phase2(b_get_operation_non_det_modifies/2). |
| 3056 | | |
| 3057 | | % these functions sometimes get called also in csp mode; simply fail silently for those cases in other_spec_precompile |
| 3058 | | % they also get recompiled when new definition file is added |
| 3059 | | precompiled_predicate_no_error_when_not_precompiled(b_get_machine_animation_function/2). |
| 3060 | | precompiled_predicate_no_error_when_not_precompiled(b_get_machine_heuristic_function/1). |
| 3061 | | precompiled_predicate_no_error_when_not_precompiled(b_get_machine_animation_expression/2). |
| 3062 | | precompiled_predicate_no_error_when_not_precompiled(b_get_machine_custom_nodes_function/2). |
| 3063 | | precompiled_predicate_no_error_when_not_precompiled(b_get_machine_custom_edges_function/2). |
| 3064 | | precompiled_predicate_no_error_when_not_precompiled(b_get_machine_custom_graph_function/2). |
| 3065 | | |
| 3066 | | % on startup, all precompiled predicates yield error message |
| 3067 | | startup_precompiled :- retractall(bmachine_is_precompiled), |
| 3068 | ? | is_precompiled_predicate(Pred/Arity), |
| 3069 | | functor(Pattern,Pred,Arity), |
| 3070 | | retractall(Pattern), |
| 3071 | | assertz( (Pattern :- add_error(bmachine,'B machine not precompiled for ',Pattern),fail) ), |
| 3072 | | fail. |
| 3073 | | startup_precompiled :- debug_println(4,startup_precompiled). |
| 3074 | | |
| 3075 | | :- startup_precompiled. |
| 3076 | | |
| 3077 | | % for each predicate in "precompiled_predicate", auto_precompile computes |
| 3078 | | % all solutions by calling the predicate with an appended _calc |
| 3079 | | auto_precompile :- % startup_precompiled, |
| 3080 | | % failure-driven loop |
| 3081 | ? | precompiled_predicate(Pred/Arity), %print(precompile(Pred/Arity)),nl, |
| 3082 | | %statistics(walltime,[Tot,Delta]), format('Precompiling ~w/~w [~w ms (Delta ~w) ms]~n',[Pred,Arity,Tot,Delta]), |
| 3083 | ? | auto_precompile2(Pred,Arity,Pattern), |
| 3084 | | (Pattern -> true /* this pattern already asserted */ |
| 3085 | | ; assertz(Pattern)), fail. |
| 3086 | | auto_precompile :- |
| 3087 | | assert_bmachine_is_precompiled, debug_println(4,auto_precompile). |
| 3088 | | auto_precompile_phase2 :- |
| 3089 | | % failure-driven loop |
| 3090 | ? | precompiled_predicate_phase2(Pred/Arity), %print(precompile(Pred/Arity)),nl, |
| 3091 | ? | auto_precompile2(Pred,Arity,Pattern), |
| 3092 | | (Pattern -> true /* this pattern already asserted */ |
| 3093 | | ; assertz(Pattern)), fail. |
| 3094 | | auto_precompile_phase2. |
| 3095 | | |
| 3096 | | % if the precompiled predicates is e.g. foo/2 then |
| 3097 | | % Pattern=foo(A,B) and Call=foo_calc(A,B) |
| 3098 | | auto_precompile2(Pred,Arity,Pattern) :- |
| 3099 | | atom_concat(Pred,'_calc',CallFunctor), |
| 3100 | | functor(Pattern,Pred,Arity), |
| 3101 | | functor(Call,CallFunctor,Arity), |
| 3102 | | unify_args(Arity,Call,Pattern), |
| 3103 | | retractall(Pattern), % probably just removes clause added by startup_precompiled |
| 3104 | | % the failure-driven loop for one predicate |
| 3105 | ? | call(Call). |
| 3106 | | |
| 3107 | | unify_args(0,_,_) :- !. |
| 3108 | | unify_args(N,A,B) :- |
| 3109 | | arg(N,A,Arg), arg(N,B,Arg), |
| 3110 | | N1 is N-1, unify_args(N1,A,B). |
| 3111 | | |
| 3112 | | |
| 3113 | | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3114 | | % set machine goal |
| 3115 | | |
| 3116 | | b_set_machine_goal(Goal) :- b_set_machine_goal(Goal,false). |
| 3117 | | b_set_machine_goal(Goal,WithDeferredSets) :- |
| 3118 | | get_tc_scope(WithDeferredSets,Scope), |
| 3119 | | b_parse_machine_predicate(Goal,Scope,TypedPred), |
| 3120 | | b_set_parsed_typed_machine_goal(TypedPred). |
| 3121 | | |
| 3122 | | b_set_parsed_typed_machine_goal(TypedPred) :- |
| 3123 | | retractall(b_get_machine_goal(_)), |
| 3124 | | assertz(b_get_machine_goal(TypedPred)). |
| 3125 | | |
| 3126 | | b_unset_machine_goal :- |
| 3127 | | retractall(b_get_machine_goal(_)). |
| 3128 | | |
| 3129 | | |
| 3130 | | % get typechecking scope: |
| 3131 | | get_tc_scope(with_deferred,Scope) :- !, |
| 3132 | | Scope = [prob_ids(visible),variables,external_library(all_available_libraries)]. |
| 3133 | | % with external libraries we can use e.g. GET_IS_DET_OUTPUT("OpName")=FALSE |
| 3134 | | get_tc_scope(with_deferred_and_primed,Scope) :- !, |
| 3135 | | get_primed_machine_variables(PV), % this can be useful for visualisation, but will not work during mc |
| 3136 | | Scope = [prob_ids(visible),identifier(PV),variables,external_library(all_available_libraries)]. |
| 3137 | | get_tc_scope(_,[variables]). |
| 3138 | | |
| 3139 | | % set search_scope, restricting model checking to states which satisfy the SCOPE DEFINITION predicate |
| 3140 | | b_set_machine_searchscope(Goal) :- b_set_machine_searchscope(Goal,with_deferred). |
| 3141 | | b_set_machine_searchscope(Goal,WithDeferredSets) :- |
| 3142 | | get_tc_scope(WithDeferredSets,Scope), |
| 3143 | | b_parse_machine_predicate(Goal,Scope,TypedPred), |
| 3144 | | b_set_parsed_typed_machine_searchscope(TypedPred). |
| 3145 | | b_set_parsed_typed_machine_searchscope(TypedPred) :- |
| 3146 | | retractall(b_get_machine_searchscope(_)), |
| 3147 | | assertz(b_get_machine_searchscope(TypedPred)). |
| 3148 | | |
| 3149 | | % also allow empty string, and #invariant and #not_invariant |
| 3150 | | b_parse_optional_machine_predicate(TargetString,Target) :- |
| 3151 | | is_empty_string(TargetString),!,create_texpr(truth,pred,[],Target). |
| 3152 | | b_parse_optional_machine_predicate('#invariant',Invariant) :- !, |
| 3153 | | b_get_invariant_from_machine(Invariant). |
| 3154 | | b_parse_optional_machine_predicate('#not_invariant',TargetPredicate) :- !, |
| 3155 | | b_get_invariant_from_machine(Invariant), |
| 3156 | | bsyntaxtree:create_negation(Invariant,TargetPredicate). |
| 3157 | | b_parse_optional_machine_predicate(TargetString,Target) :- |
| 3158 | | b_parse_machine_predicate(TargetString,Target). |
| 3159 | | |
| 3160 | | is_empty_string(Atom) :- |
| 3161 | | atom_codes(Atom,Codes), |
| 3162 | | is_empty_string2(Codes). |
| 3163 | | is_empty_string2([]). |
| 3164 | | is_empty_string2([32|Codes]) :- is_empty_string2(Codes). |
| 3165 | | |
| 3166 | | |
| 3167 | | % parsing a string as predicate with deferred set elements |
| 3168 | | b_parse_machine_predicate(Pred,TypedPred) :- b_parse_machine_predicate(Pred,[variables],TypedPred). |
| 3169 | | b_parse_machine_predicate(Pred,Scope,TypedPred) :- |
| 3170 | | atom_codes(Pred,Codes), |
| 3171 | | b_parse_machine_predicate_from_codes(Codes,Scope,TypedPred). |
| 3172 | | b_parse_machine_predicate_from_codes(Codes,Scope,TypedPred) :- |
| 3173 | | b_parse_machine_predicate_from_codes2(Codes,[],Scope,TypedPred,closed). |
| 3174 | | b_parse_machine_predicate_from_codes_open(OptionalQuantifier,Codes,Defs,Scope,TypedPred) :- |
| 3175 | | b_parse_machine_predicate_from_codes2(Codes,Defs,Scope,TypedPred,open(OptionalQuantifier)). |
| 3176 | | |
| 3177 | | b_parse_machine_predicate_from_codes2(Codes,Defs,Scope,TypedPred,Mode) :- |
| 3178 | | debug_println(9,parse_predicate(Mode)), |
| 3179 | | (Defs=[] -> true ; debug_println(9,'% Ignoring DEFINITIONS')), |
| 3180 | | b_parse_wo_type_machine_predicate_from_codes_to_raw_expr(Codes,Parsed), |
| 3181 | | %format('Raw Parsed AST = ~w~n',[Parsed]), |
| 3182 | | b_type_check_raw_expr(Parsed,Scope,TypedPred,Mode). |
| 3183 | | |
| 3184 | | check_codes(X) :- (X=[] ; X=[H|_], number(H)),!. |
| 3185 | | check_codes(X) :- add_error(bmachine,'Error while parsing: not a code list: ',X),fail. |
| 3186 | | |
| 3187 | | b_parse_wo_type_machine_predicate_from_codes_to_raw_expr(Codes,ParsedRaw) :- |
| 3188 | | check_codes(Codes), |
| 3189 | | catch( |
| 3190 | | parse_predicate(Codes,ParsedRaw), % ,print(ParsedRaw),nl), |
| 3191 | | Exception, |
| 3192 | | ( Exception = parse_errors(Errors) -> %print(errors(Errors)),nl, |
| 3193 | | add_all_perrors(Errors,[],parse_machine_predicate_error),fail |
| 3194 | | ; |
| 3195 | | add_error(bmachine,'Exception while parsing predicate: ',Exception), |
| 3196 | | fail)). |
| 3197 | | |
| 3198 | | b_type_check_raw_expr(ParsedRaw,Scope,TypedPred,Mode) :- |
| 3199 | | debug_println(9,type_with_errors(ParsedRaw)), |
| 3200 | | ( Mode == closed -> |
| 3201 | | type_with_errors(ParsedRaw,Scope,pred,TypedPred) |
| 3202 | | ; Mode = open(OptionalQuantifier) -> |
| 3203 | | b_type_open_predicate_with_errors(OptionalQuantifier,ParsedRaw,Scope,TypedPred)). |
| 3204 | | |
| 3205 | | % a flexible version: convert atom to codes, but also accept codes list |
| 3206 | | flexible_atom_codes([],R) :- !, R=[]. |
| 3207 | | flexible_atom_codes(A,R) :- atom(A), !, atom_codes(A,R). |
| 3208 | | flexible_atom_codes([H|T],List) :- !, List=[H|T]. |
| 3209 | | flexible_atom_codes(Other,List) :- add_internal_error('Not atom or codes list: ',flexible_atom_codes(Other,List)), |
| 3210 | | List=Other. |
| 3211 | | |
| 3212 | | b_parse_machine_operation_pre_post_predicate(AtomOrCodes,TypedPred,OpName) :- |
| 3213 | | b_parse_machine_operation_pre_post_predicate(AtomOrCodes,[],TypedPred,OpName,true). |
| 3214 | | b_parse_machine_operation_pre_post_predicate(AtomOrCodes,ExtraScope,TypedPred,OpName,GenerateParseErrors) :- |
| 3215 | | flexible_atom_codes(AtomOrCodes,Codes), |
| 3216 | | b_parse_predicate(Codes,Parsed,GenerateParseErrors), |
| 3217 | | (trivial_raw_pred(Parsed) -> Scope=[] |
| 3218 | | ; get_machine_operation_typing_scope(OpName,Scope,ExtraScope)), |
| 3219 | | b_type_only(Parsed,Scope,pred,TypedPred,GenerateParseErrors). |
| 3220 | | |
| 3221 | | trivial_raw_pred(truth(_)). |
| 3222 | | trivial_raw_pred(falsity(_)). |
| 3223 | | |
| 3224 | | % Note: B and Event-B have different way of priming; this is aimed at classical B |
| 3225 | | % and supposes predicate used together with execute_operation_by_predicate_in_state |
| 3226 | | % in classical B x$0 refers to the value before a substitution (e.g., becomes_such) |
| 3227 | | get_primed_machine_variables(Ids) :- |
| 3228 | | b_get_machine_variables(Vars), |
| 3229 | | maplist(prime_variable,Vars,Ids). |
| 3230 | | :- use_module(btypechecker,[prime_atom0/2]). % add $0 at end of variable |
| 3231 | | prime_variable(b(identifier(ID),T,I),b(identifier(PID),T,I)) :- prime_atom0(ID,PID). |
| 3232 | | |
| 3233 | | is_initialisation_op('$setup_constants'). |
| 3234 | | is_initialisation_op('$initialise_machine'). |
| 3235 | | |
| 3236 | | % analog version to b_is_operation_name: |
| 3237 | | b_is_initialisation_name('$initialise_machine'). |
| 3238 | | |
| 3239 | | |
| 3240 | | get_machine_operation_typing_scope(OpName,Scope,ExtraScope) :- |
| 3241 | | ( get_machine_operation_additional_identifiers(OpName,V) -> true |
| 3242 | | ; add_error_fail(get_machine_operation_typing_scope,'Unknown operation:', OpName)), |
| 3243 | | Scope = [prob_ids(visible),identifier(V),variables,external_library(all_available_libraries)|ExtraScope]. |
| 3244 | | |
| 3245 | | % get additional ids to add to Scope for typing with identifier(V) |
| 3246 | | get_machine_operation_additional_identifiers(OpName,V) :- xtl_mode,!, |
| 3247 | | xtl_interface:get_xtl_paras_as_identifiers(OpName,V). |
| 3248 | | get_machine_operation_additional_identifiers(OpName,V) :- |
| 3249 | | is_initialisation_op(OpName),!, V=[]. |
| 3250 | | get_machine_operation_additional_identifiers(OpName,V) :- |
| 3251 | | b_get_machine_operation_for_animation(OpName,Results,Paras,_), |
| 3252 | | append(Paras,Results,PR), % b_get_machine_operation_typed_parameters |
| 3253 | | get_primed_machine_variables(PV), |
| 3254 | | append(PV,PR,V). |
| 3255 | | |
| 3256 | | b_get_machine_operation_for_animation(Name,Results,Parameters,Body) :- |
| 3257 | ? | b_get_machine_operation_for_animation(Name,Results,Parameters,Body,_OType,true). |
| 3258 | | % interface predicate b_get_machine_operation_for_animation/6 |
| 3259 | | b_get_machine_operation_for_animation(Name,Results,Parameters,Body,OType,TopLevel) :- |
| 3260 | ? | b_get_machine_operation_for_animation(Name,Results,Parameters,Body,OType,TopLevel,_OpPos). |
| 3261 | | |
| 3262 | | :- public b_get_machine_operation_for_animation_calc/7. |
| 3263 | | % adds some additional ANY parameters if preference is set |
| 3264 | | b_get_machine_operation_for_animation_calc('$initialise_machine',[],Parameters,Body,OType,_TopLevel,OpPos) :- |
| 3265 | | b_get_machine_variables(DeclaredVars), Parameters=DeclaredVars, |
| 3266 | | OpPos = unknown, % TODO: improve |
| 3267 | | b_get_initialisation_from_machine(Body,OType). |
| 3268 | | b_get_machine_operation_for_animation_calc(Name,Results,Parameters,Body,OType,TopLevel,OpPos) :- |
| 3269 | | get_preference(show_eventb_any_arguments,EVENTB), |
| 3270 | ? | b_get_machine_operation(Name,Results,RealParameters,RealBody,OType,OpPos), |
| 3271 | | % TO DO: check whether we should only keep b_top_level_operation(Name) in case TopLevel==true ! |
| 3272 | | %length(RealParameters,P), format('Get Mach Op ~w ; paras ~w ; EB ~w, TopLevel=~w~n',[Name,P,EVENTB,TopLevel]), |
| 3273 | | ((Results=[_|_] ; RealParameters=[_|_] ; EVENTB=false) |
| 3274 | | -> Parameters=RealParameters, Body=RealBody |
| 3275 | | ; translate_any_into_parameters(RealBody,FakeParameters,FakeBody), |
| 3276 | | length(FakeParameters,Len), |
| 3277 | | (Len > 255 |
| 3278 | | -> add_message(bmachine,'Not adding any parameters to operation, max_arity (255) exceeded: ',Name:Len,OpPos), |
| 3279 | | Parameters=RealParameters, Body=RealBody |
| 3280 | | ; ( TopLevel=true, Parameters=FakeParameters, Body=FakeBody |
| 3281 | | ; TopLevel=false, Parameters=RealParameters, Body=RealBody |
| 3282 | | ) |
| 3283 | | ) |
| 3284 | | ; Parameters=RealParameters, Body=RealBody |
| 3285 | | ). |
| 3286 | | |
| 3287 | | % TO DO: limit to max_arity |
| 3288 | | translate_any_into_parameters(b(E,Type,Info),Parameters,NewSubst) :- |
| 3289 | | translate_any_into_parameters_aux(E,Type,Info,Parameters,NewSubst). |
| 3290 | | translate_any_into_parameters_aux(any(Parameters,PreCond,ABody),Type,Info,Parameters,NewSubst) :- |
| 3291 | | NewSubst=b(select([b(select_when(PreCond,ABody),Type,Info)]),Type,Info). % TO DO: go deeper ? (nested ANY ?) |
| 3292 | | translate_any_into_parameters_aux(let(Parameters,Defs,LBody),Type,Info,Parameters,NewSubst) :- |
| 3293 | | NewSubst=b(select([b(select_when(Defs,LBody),Type,Info)]),Type,Info). % TO DO: go deeper ? ANY could have been translated into several LETs ? |
| 3294 | | translate_any_into_parameters_aux(lazy_let_subst(Id,IdExpr,Body),Type,Info,Parameters,NewSubst) :- |
| 3295 | | NewSubst=b(lazy_let_subst(Id,IdExpr,NewInnerSubst),Type,Info), |
| 3296 | | translate_any_into_parameters(Body,Parameters,NewInnerSubst). |
| 3297 | | |
| 3298 | | |
| 3299 | | % add deferred set prob_ids and external libraries as well |
| 3300 | | % ExtraScope could e.g. be [identifier(TypedIDLIst)] |
| 3301 | | b_parse_machine_expression_from_codes_with_prob_ids(Codes,ExtraScope,TypedExpr,GenerateParseErrors) :- |
| 3302 | | extend_typing_scope_for_stored_lets([prob_ids(visible),variables_and_additional_defs, |
| 3303 | | external_library(all_available_libraries)|ExtraScope], |
| 3304 | | Scope), |
| 3305 | | b_parse_machine_expression_from_codes4(Codes,Scope,TypedExpr,GenerateParseErrors). |
| 3306 | | b_parse_machine_expression_from_codes_with_prob_ids(Codes,ExtraScope,TypedExpr) :- |
| 3307 | | b_parse_machine_expression_from_codes_with_prob_ids(Codes,ExtraScope,TypedExpr,true). |
| 3308 | | b_parse_machine_expression_from_codes_with_prob_ids(Codes,TypedExpr) :- |
| 3309 | | b_parse_machine_expression_from_codes_with_prob_ids(Codes,[],TypedExpr,true). |
| 3310 | | |
| 3311 | | b_parse_machine_expression_from_codes(Codes,TypedExpr) :- |
| 3312 | | b_parse_machine_expression_from_codes4(Codes,[variables],TypedExpr,true). |
| 3313 | | |
| 3314 | | b_parse_machine_expression_from_codes4(Codes,Scope,TypedExpr,GenerateParseErrors) :- |
| 3315 | | b_parse_machine_expression_from_codes(Codes,Scope,TypedExpr,_Type,GenerateParseErrors,Error),!, |
| 3316 | | (Error=none -> true |
| 3317 | | ; generate_parse_errors_for(GenerateParseErrors,Position,ErrOrWarn), |
| 3318 | | add_msg_warn_or_err(ErrOrWarn,b_parse_machine_expression_from_codes, |
| 3319 | | 'Errors occured during parsing:', Error,Position), |
| 3320 | | % format(user_error,'Parsing: ~s~n',[Codes]), |
| 3321 | | fail). |
| 3322 | | |
| 3323 | | |
| 3324 | | %b_parse_machine_expression_from_codes(Codes,TypedExpr) :- |
| 3325 | | % b_parse_machine_expression_from_codes(Codes,TypedExpr,_Type,false,Error), Error=none. |
| 3326 | | |
| 3327 | | b_parse_machine_expression_from_codes(Codes,Typed,Type,GenerateParseErrors,Error) :- |
| 3328 | | b_parse_machine_expression_from_codes(Codes,[variables], |
| 3329 | | Typed,Type,GenerateParseErrors,Error). |
| 3330 | | b_parse_machine_expression_from_codes(Codes,Scope, |
| 3331 | | Typed,Type,GenerateParseErrors,Error) :- |
| 3332 | | b_parse_machine_formula_from_codes(expression,Codes,Scope, |
| 3333 | | Typed,Type,GenerateParseErrors,Error). |
| 3334 | | |
| 3335 | | % parse substitutions so as to allow operation calls; useful for REPL or trace files: |
| 3336 | | b_parse_machine_subsitutions_from_codes(Codes,Scope, |
| 3337 | | Typed,Type,GenerateParseErrors,Error) :- |
| 3338 | | temporary_set_preference(allow_local_operation_calls,true,CHNG), |
| 3339 | | call_cleanup( |
| 3340 | | b_parse_machine_formula_from_codes(substitution,Codes,Scope, |
| 3341 | | Typed,Type,GenerateParseErrors,Error), |
| 3342 | | reset_temporary_preference(allow_local_operation_calls,CHNG)). |
| 3343 | | |
| 3344 | | % a variant of b_parse_machine_predicate that allows also expressions |
| 3345 | | b_parse_machine_formula(PredOrExpr,Scope,TypedPredOrExpr) :- |
| 3346 | | atom_codes(PredOrExpr,Codes), |
| 3347 | | b_parse_machine_formula_from_codes(formula,Codes,Scope, |
| 3348 | | TypedPredOrExpr,_Type,true,Error), Error=none. |
| 3349 | | |
| 3350 | | % Kind = expression, predicate, formula, substitution |
| 3351 | | % GnerateParseErrors = true, false, type_errors_only, gen_parse_errors_for/2 |
| 3352 | | b_parse_machine_formula_from_codes(Kind,Codes,Scope, |
| 3353 | | Typed,Type,GenerateParseErrors,Error) :- |
| 3354 | | b_parse_only(Kind,Codes, ParsedAST, GenerateParseErrors, Error), |
| 3355 | | %print(parsed(Parsed,Error)),nl, |
| 3356 | | ( nonvar(Error) -> true /* either exception or parse error occured */ |
| 3357 | | ; generate_no_parse_errors(GenerateParseErrors), type_without_errors(ParsedAST,Scope,Type,Typed) -> Error=none |
| 3358 | | ; b_type_only(ParsedAST,Scope,Type,Typed,GenerateParseErrors) -> Error=none |
| 3359 | | ; Error=type_error). |
| 3360 | | |
| 3361 | | % typing with or without errors, depending on GenerateParseErrors flag |
| 3362 | | b_type_only(ParsedAST,Scope,Type,Typed,GenParseErrors) :- |
| 3363 | | generate_parse_errors_for(GenParseErrors,_Pos,ErrOrWarn),!, |
| 3364 | | % ParsedAST now contains filenumber for additional file |
| 3365 | | type_with_errors_in_context(ParsedAST,Scope,Type,Typed,machine_context,ErrOrWarn). |
| 3366 | | b_type_only(ParsedAST,Scope,Type,Typed,false) :- !, |
| 3367 | | type_without_errors(ParsedAST,Scope,Type,Typed). |
| 3368 | | b_type_only(ParsedAST,Scope,Type,Typed,_GenerateParseErrors) :- |
| 3369 | | type_with_errors_in_context(ParsedAST,Scope,Type,Typed,no_machine_context([]),error). |
| 3370 | | |
| 3371 | | % GenerateParseErrors can also provide context filename |
| 3372 | | b_parse_predicate(Codes,ParsedAST,GenerateParseErrors) :- |
| 3373 | | b_parse_only(predicate,Codes, ParsedAST, GenerateParseErrors,Error), |
| 3374 | | Error=none. |
| 3375 | | |
| 3376 | | b_parse_only(Kind,Codes, ParsedAST, _,Error) :- (Codes \= [] , Codes \= [_|_]),!, |
| 3377 | | add_internal_error('Not a codes list: ',b_parse_only(Kind,Codes, ParsedAST, _, Error)), |
| 3378 | | Error = internal_error. |
| 3379 | | b_parse_only(Kind,Codes, ParsedAST, GenerateParseErrors,Error) :- |
| 3380 | | generate_parse_errors_for(GenerateParseErrors,Position,ErrOrWarn),!, |
| 3381 | | % we should generate errors in a particular file context |
| 3382 | | (extract_file_number_and_name(Position,FileNr,Filename) |
| 3383 | | -> Files=[Filename] ; FileNr = -1, Files=[]), |
| 3384 | | (number(FileNr) -> NewFileNr=FileNr ; add_additional_filename(Filename,NewFileNr)), |
| 3385 | | catch( parse_at_position_in_file(Kind,Codes,ParsedAST,Position,NewFileNr), |
| 3386 | | Exception, |
| 3387 | | ((Exception = parse_errors(Errors) -> |
| 3388 | | add_all_perrors(Errors,Files,parse_machine_formula_error,ErrOrWarn), |
| 3389 | | Error=parse_error |
| 3390 | | ; |
| 3391 | | ajoin(['Exception while parsing ',Kind,': '],Msg), |
| 3392 | | add_msg_warn_or_err(ErrOrWarn,bmachine,Msg,Exception,Position), |
| 3393 | | Error=exception))). |
| 3394 | | b_parse_only(Kind,Codes, ParsedAST, _GenerateParseErrors,_Error) :- |
| 3395 | | catch( parse(Kind,Codes,ParsedAST), |
| 3396 | | Exception, |
| 3397 | | (debug_println(19,parse_exception(Exception)),fail)). |
| 3398 | | |
| 3399 | | %generate_type_errors_for(type_errors_only,unknown,[]). |
| 3400 | | %generate_type_errors_for(GenerateParseErrors,Pos) :- generate_parse_errors_for(GenerateParseErrors,Pos). |
| 3401 | | |
| 3402 | | generate_parse_errors_for(true,unknown,error). |
| 3403 | | generate_parse_errors_for(gen_parse_errors_for(Pos),Pos,error). |
| 3404 | | generate_parse_errors_for(gen_parse_warnings_for(Pos),Pos,warning). |
| 3405 | | |
| 3406 | | generate_no_parse_errors(false). |
| 3407 | | |
| 3408 | | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3409 | | |
| 3410 | | % a flexible parsing predicate, useful for dot and table tools to be called from |
| 3411 | | % either probcli or prob2 with either atoms or with raw ASTs: |
| 3412 | | |
| 3413 | | :- use_module(eval_let_store,[extend_typing_scope_for_stored_lets/2]). |
| 3414 | | parse_expression_raw_or_atom_with_prob_ids(Expr,TypedExpr) :- |
| 3415 | | extend_typing_scope_for_stored_lets([prob_ids(visible),variables,external_library(all_available_libraries)],Scope), |
| 3416 | | parse_expression_raw_or_atom3(Expr,Scope,TypedExpr). |
| 3417 | | |
| 3418 | | parse_expression_raw_or_atom3('$VARIABLES',_,TypedExpr) :- !, |
| 3419 | | b_get_machine_variables(DeclaredVars), |
| 3420 | | gen_couple_from_list(DeclaredVars,TypedExpr). |
| 3421 | | parse_expression_raw_or_atom3(RawAST,Scope,TypedExpr) :- compound(RawAST),!, % allow to pass raw AST as well |
| 3422 | | type_with_errors(RawAST,Scope,Type,TypedExpr), |
| 3423 | | ((Type=pred ; Type=subst) |
| 3424 | | -> add_error(parse_expression,'Expected expression formula but obtained: ',Type),fail |
| 3425 | | ; true ). |
| 3426 | | parse_expression_raw_or_atom3(VorE,Scope,TypedExpr) :- |
| 3427 | | atom_codes(VorE,VorECodes), |
| 3428 | | % to do: maybe support b_parse_machine_expression_from_codes_with_prob_ids |
| 3429 | | b_parse_machine_expression_from_codes4(VorECodes,Scope,TypedExpr,true). |
| 3430 | | |
| 3431 | | :- use_module(bsyntaxtree, [create_couple/3]). |
| 3432 | | gen_couple_from_list([],string('NO VARIABLES')). |
| 3433 | | gen_couple_from_list([TID],Res) :- !, Res=TID. |
| 3434 | | gen_couple_from_list([TID|T],Couple) :- |
| 3435 | | gen_couple_from_list(T,Rest), |
| 3436 | | create_couple(TID,Rest,Couple). |
| 3437 | | |
| 3438 | | |
| 3439 | | :- use_module(btypechecker,[prime_atom0/2]). % add $0 at end of variable |
| 3440 | | :- use_module(bsyntaxtree, [find_typed_identifier_uses/2,get_texpr_id/2]). |
| 3441 | | % compute requirements for evaluating formula |
| 3442 | | % requires_nothing, requires_constants, requires_variables |
| 3443 | | determine_type_of_formula(TypedExpr,Class) :- |
| 3444 | | determine_type_of_formula(TypedExpr,_,Class). |
| 3445 | | determine_type_of_formula(TypedExpr,Identifiers,Class) :- |
| 3446 | | find_typed_identifier_uses(TypedExpr,Identifiers), |
| 3447 | | determine_type_of_formula2(Identifiers,Class). |
| 3448 | | determine_type_of_formula2([],Res) :- !, Res = requires_nothing. |
| 3449 | | determine_type_of_formula2(Ids,Res) :- |
| 3450 | | member(TID,Ids), get_texpr_id(TID,ID), |
| 3451 | | (b_is_variable(ID,_) -> true |
| 3452 | | ; prime_atom0(Original,ID), |
| 3453 | | (b_is_variable(Original,_) -> true ; add_warning(bmachine,'Unknown primed variable: ',ID)) |
| 3454 | | ), |
| 3455 | | !, Res = requires_variables. |
| 3456 | | determine_type_of_formula2(Ids,Res) :- |
| 3457 | | member(TID,Ids), get_texpr_id(TID,ID), |
| 3458 | | b_is_constant(ID,_), |
| 3459 | | !, Res = requires_constants. |
| 3460 | | determine_type_of_formula2(_,requires_nothing). |
| 3461 | | % only open, implicitly existentially quantified variables |
| 3462 | | % also, TO DO: check that insert_before_substitution_variables / $0 variables are properly treated |
| 3463 | | % TODO: there are external functions like ENABLED(.) which implicitly require a state with variables |
| 3464 | | |
| 3465 | | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3466 | | % consistency check to spot some errors |
| 3467 | | do_machine_consistency_check :- |
| 3468 | | specfile:animation_mode(b), % TODO (dp,27.09.2012): this is just an ugly hack |
| 3469 | | type_check_definitions, |
| 3470 | ? | minor_mode_to_check, |
| 3471 | | %debug:time(bmachine:all_operations_have_valid_read_modifies_infos). |
| 3472 | | !, |
| 3473 | | all_operations_have_valid_read_modifies_infos. |
| 3474 | | do_machine_consistency_check. |
| 3475 | | |
| 3476 | | % In future, all formalisms should provide the relevent data |
| 3477 | | minor_mode_to_check :- animation_minor_mode(eventb),!. |
| 3478 | ? | minor_mode_to_check :- classical_b_mode. |
| 3479 | | |
| 3480 | | all_operations_have_valid_read_modifies_infos :- |
| 3481 | | %findall(O,b_get_machine_operation(O,_,_,_,_),OpNames), |
| 3482 | | %maplist(operation_has_valid_read_modifies_infos,OpNames). |
| 3483 | ? | b_get_operation_pos(OpName,Pos), |
| 3484 | | operation_has_valid_read_modifies_infos(OpName,Pos),fail. |
| 3485 | | all_operations_have_valid_read_modifies_infos. |
| 3486 | | |
| 3487 | | operation_has_valid_read_modifies_infos(OpName,Pos) :- % print(check(OpName)),nl, |
| 3488 | | ( operation_has_valid_read_modifies_infos2(OpName,Pos) -> true |
| 3489 | | ; add_failed_call_error(operation_has_valid_read_modifies_infos2(OpName,Pos))). |
| 3490 | | operation_has_valid_read_modifies_infos2(OpName,Pos) :- |
| 3491 | | b_get_operation_normalized_read_write_info(OpName,Reads,Writes), |
| 3492 | | maplist(check_read(OpName,Pos),Reads), |
| 3493 | | %print(operation(OpName,reads(Reads),writes(Writes))),nl, |
| 3494 | | maplist(check_write(OpName,Pos),Writes). |
| 3495 | | |
| 3496 | | |
| 3497 | | :- use_module(translate,[translate_span_with_filename/2]). |
| 3498 | | :- use_module(bmachine_construction,[abstract_variable_removed_in/3]). |
| 3499 | | check_read(OpName,Pos,Id) :- |
| 3500 | ? | ( (check_is_var(Id); check_is_constant(Id) ; check_is_operation(Id)) -> true |
| 3501 | | ; abstract_variable_removed_in(Id,Mch,TId) -> |
| 3502 | | translate_span_with_filename(TId,SP), |
| 3503 | | ajoin(['Operation reads invisible abstract variable `',Id,'` ',SP,', removed in ',Mch,':'],Msg), |
| 3504 | | % this shows that in that refinement step we removed a variable without adapting an operation |
| 3505 | | add_error(bmachine,Msg,OpName,Pos) |
| 3506 | | ; |
| 3507 | | ajoin(['Unknown identifier `',Id,'` in "reads" information of operation:'],Msg), |
| 3508 | | add_internal_error(bmachine,Msg,OpName,Pos)). |
| 3509 | | check_write(OpName,Pos,Id) :- |
| 3510 | | ( check_is_var(Id) -> true |
| 3511 | | ; abstract_variable_removed_in(Id,Mch,TId) -> |
| 3512 | | translate_span_with_filename(TId,SP), |
| 3513 | | ajoin(['Operation writes invisible abstract variable `',Id,'` ',SP,', removed in ',Mch,':'],Msg), |
| 3514 | | % this shows that in that refinement step we removed a variable without adapting an operation |
| 3515 | | add_error(bmachine,Msg,OpName,Pos) |
| 3516 | | ; |
| 3517 | | ajoin(['Unknown variable `',Id,'` in "modifies" information of operation:'],Msg), |
| 3518 | | add_internal_error(bmachine,Msg,OpName,Pos)). |
| 3519 | | |
| 3520 | | check_is_var(Id) :- |
| 3521 | | b_is_variable(Id,_). |
| 3522 | | %get_texpr_id(E,Id), |
| 3523 | | %b_get_machine_variables(Vars), |
| 3524 | | %memberchk(E,Vars). |
| 3525 | | check_is_constant(Id) :- b_is_constant(Id,_). |
| 3526 | | check_is_constant(Id) :- b_get_constant_represented_inside_global_set(Id,_). |
| 3527 | | % b_get_machine_all_constants(Constants), |
| 3528 | | % get_texpr_id(TId,Id), |
| 3529 | | % memberchk(TId,Constants). |
| 3530 | | check_is_constant(Id) :- b_get_machine_set(Id). |
| 3531 | | check_is_constant(Id) :- b_get_named_machine_set(Id,_). |
| 3532 | | check_is_constant(Id) :- |
| 3533 | | b_get_named_machine_set(_,Elems),member(Id,Elems). |
| 3534 | | %check_is_constant(Id) :- % add later when we deal FREETYPE section in classical B as in Z |
| 3535 | | % kernel_freetypes:freetype_register_db(Id,_) ; |
| 3536 | | % kernel_freetypes:freetype_case_db(Id,_,_). |
| 3537 | | |
| 3538 | | check_is_operation(op(ID)) :- |
| 3539 | | b_is_operation_name(ID), % TO DO: check that other predicates can deal with op(Id) infos |
| 3540 | | get_preference(allow_operation_calls_in_expr,true). |
| 3541 | | |
| 3542 | | % provide access to number of constants, ....: |
| 3543 | | |
| 3544 | | :- volatile b_machine_statistics/2. |
| 3545 | | :- dynamic b_machine_statistics/2. |
| 3546 | | :- public b_machine_statistics_calc/2. |
| 3547 | | b_machine_statistics_calc(files,Nr) :- |
| 3548 | | b_get_all_used_filenames(L),length(L,Nr). |
| 3549 | | b_machine_statistics_calc(deferred_sets,Nr) :- |
| 3550 | | get_section_from_current_machine(deferred_sets,L),length(L,Nr). |
| 3551 | | b_machine_statistics_calc(enumerated_sets,Nr) :- |
| 3552 | | get_section_from_current_machine(enumerated_sets,L),length(L,Nr). |
| 3553 | | b_machine_statistics_calc(definitions,Nr) :- |
| 3554 | | get_section_from_current_machine(definitions,L),length(L,Nr). |
| 3555 | | b_machine_statistics_calc(constants,Nr) :- b_get_machine_constants(L), length(L,Nr). |
| 3556 | | b_machine_statistics_calc(variables,Nr) :- b_get_machine_variables(L), length(L,Nr). |
| 3557 | | b_machine_statistics_calc(properties,Nr) :- |
| 3558 | | b_get_properties_from_machine(C), conjunction_to_list(C,L),length(L,Nr). |
| 3559 | | b_machine_statistics_calc(invariants,Nr) :- |
| 3560 | | b_get_invariant_from_machine(C), conjunction_to_list(C,L),length(L,Nr). |
| 3561 | | b_machine_statistics_calc(static_assertions,Nr) :- |
| 3562 | | b_get_static_assertions_from_machine(L), length(L,Nr). |
| 3563 | | b_machine_statistics_calc(dynamic_assertions,Nr) :- |
| 3564 | | b_get_dynamic_assertions_from_machine(L), length(L,Nr). |
| 3565 | | b_machine_statistics_calc(operations,Nr) :- findall(N,b_is_operation_name(N),L),length(L,Nr). |
| 3566 | | |
| 3567 | | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3568 | | % default and initial machines |
| 3569 | | b_set_initial_machine :- |
| 3570 | | initial_machine(Main,Machines), |
| 3571 | | b_set_machine(Main,Machines,[]). |
| 3572 | | |
| 3573 | | initial_machine(phonebook,[M]) :- |
| 3574 | | M = abstract_machine(none,machine(none),machine_header(none,phonebook,[]),Body), |
| 3575 | | Body = [sets(none, [deferred_set(none,'Name'), |
| 3576 | | deferred_set(none,'Code')]), |
| 3577 | | definitions(none,[ScopeName,ScopeCode,TraceTest0]), |
| 3578 | | variables(none, [identifier(none, db)]), |
| 3579 | | invariant(none, member(none, |
| 3580 | | identifier(none, db), |
| 3581 | | partial_function(none, |
| 3582 | | identifier(none, 'Name'), |
| 3583 | | identifier(none, 'Code')))), |
| 3584 | | initialisation(none, |
| 3585 | | assign(none, [identifier(none, db)], [empty_set(none)])), |
| 3586 | | operations(none, [Add,Lookup,Update,Reset])], |
| 3587 | | |
| 3588 | | % definitions |
| 3589 | | ScopeName = expression_definition(none, |
| 3590 | | scope_Name, |
| 3591 | | [], |
| 3592 | | interval(none, integer(none, 1), integer(none, 3))), |
| 3593 | | ScopeCode = expression_definition(none, |
| 3594 | | scope_Code, |
| 3595 | | [], |
| 3596 | | interval(none, integer(none, 1), integer(none, 2))), |
| 3597 | | TraceTest0 = expression_definition(none, trace_Test0, [], empty_sequence(none)), |
| 3598 | | |
| 3599 | | % add operation |
| 3600 | | Add = operation(none, |
| 3601 | | identifier(none, add), |
| 3602 | | [], |
| 3603 | | [identifier(none,cc),identifier(none,nn)], |
| 3604 | | precondition(none, AddPre, AddAssign)), |
| 3605 | | AddPre = conjunct(none, |
| 3606 | | conjunct(none, |
| 3607 | | member(none, identifier(none,nn), identifier(none,'Name')), |
| 3608 | | member(none, identifier(none,cc), identifier(none,'Code'))), |
| 3609 | | not_member(none, |
| 3610 | | identifier(none,nn), |
| 3611 | | domain(none, identifier(none,db)))), |
| 3612 | | AddAssign = assign(none, |
| 3613 | | [identifier(none,db)], |
| 3614 | | [union(none, |
| 3615 | | identifier(none,db), |
| 3616 | | set_extension(none, |
| 3617 | | [couple(none,[identifier(none,nn), |
| 3618 | | identifier(none,cc)])]))]), |
| 3619 | | |
| 3620 | | % lookup operation |
| 3621 | | Lookup = operation(none, |
| 3622 | | identifier(none, lookup), |
| 3623 | | [identifier(none, cc)], |
| 3624 | | [identifier(none, nn)], |
| 3625 | | precondition(none, LookupPre, LookupAssign)), |
| 3626 | | LookupPre = member(none, identifier(none,nn), domain(none,identifier(none,db))), |
| 3627 | | LookupAssign = assign(none, |
| 3628 | | [identifier(none, cc)], |
| 3629 | | [function(none, identifier(none, db), identifier(none, nn))]), |
| 3630 | | |
| 3631 | | % update operation |
| 3632 | | Update = operation(none, |
| 3633 | | identifier(none, update), |
| 3634 | | [], |
| 3635 | | [identifier(none,nn),identifier(none,cc)], |
| 3636 | | precondition(none, UpdatePre, UpdateAssign)), |
| 3637 | | UpdatePre = conjunct(none, |
| 3638 | | conjunct(none, |
| 3639 | | member(none, identifier(none,nn), identifier(none,'Name')), |
| 3640 | | member(none, identifier(none,cc), identifier(none,'Code'))), |
| 3641 | | member(none, |
| 3642 | | identifier(none,nn), |
| 3643 | | domain(none, identifier(none,db)))), |
| 3644 | | UpdateAssign = assign(none, |
| 3645 | | [function(none, identifier(none,db), identifier(none,nn))], |
| 3646 | | [identifier(none, cc)]), |
| 3647 | | |
| 3648 | | % reset operation |
| 3649 | | Reset = operation(none, |
| 3650 | | identifier(none,reset), |
| 3651 | | [], |
| 3652 | | [], |
| 3653 | | precondition(none, ResetPre, ResetAssign)), |
| 3654 | | ResetPre = member(none, |
| 3655 | | identifier(none, db), |
| 3656 | | total_function(none, identifier(none,'Name'), identifier(none,'Code'))), |
| 3657 | | ResetAssign = assign(none,[identifier(none,db)],[empty_set(none)]). |
| 3658 | | |
| 3659 | | empty_machine(empty_machine,[M]) :- |
| 3660 | | M = abstract_machine(none,machine(none),machine_header(none,empty_machine,[]),Body), |
| 3661 | | Body = []. |
| 3662 | | |
| 3663 | | % after transformation this gives |
| 3664 | | % machine(empty_machine,[deferred_sets/[],enumerated_sets/[],enumerated_elements/[],parameters/[],internal_parameters/[],abstract_constants/[],concrete_constants/[],abstract_variables/[],concrete_variables/[],promoted/[],unpromoted/[],(constraints)/b(truth,pred,[]),properties/b(truth,pred,[initial]),invariant/b(truth,pred,[initial]),linking_invariant/b(truth,pred,[initial]),assertions/[],initialisation/b(skip,subst,[generated]),operation_bodies/[],definitions/[],used/[],freetypes/[],operators/[],values/[],meta/[model_type/machine,hierarchy/[empty_machine],header_pos/[empty_machine/none]]]) |
| 3665 | | |
| 3666 | | % Code to inspect sizes of operations: |
| 3667 | | % findall(op(Sz,Op),(bmachine:b_get_machine_operation_for_animation(Op,_,_,Body,_,_Top), terms:term_size(Body,Sz)),L), sort(L,SL), print(SL),nl. |