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 % tcltk_interface.pl
6 :- module(tcltk_interface,[
7 tcltk_goto_state/2,
8 tcltk_add_new_transition_transid/6,
9 tcltk_add_new_transition/5,
10 tcltk_get_options/1, tcltk_get_options_dest_info/1, tcltk_get_state/1, tcltk_get_state/2,
11 tcltk_get_options_or_candidates/2, tcltk_get_options_candidate_nr_name/2,
12 potentially_enabled_operation/4,
13 tcltk_get_options_nr_description/2,
14 tcltk_get_history_nr_description/2,
15 tcltk_get_history_nr_origin_str/2, tcltk_edit_history_nr_origin_str/1,
16
17 tcltk_get_state_errors/1, tcltk_get_detailed_state_error/6,
18 tcltk_open_state_error_in_editor/1,
19 tcltk_get_line_col/5,
20 tcltk_current_state_invariant_violated/0,
21 tcltk_get_status/3,
22 tcltk_get_ops_with_virtual_timeout/1,
23 tcltk_get_ops_with_real_timeout/1,
24 tcltk_get_ops_user_interrupt_occurred/0,
25
26 tcltk_compute_options/2,
27 can_generate_dot_from_last_state_error/0,
28 tcltk_initialise/0, tcltk_reset/0,
29
30 tcltk_perform_nr/1, tcltk_random_perform/0, tcltk_random_perform/1,
31 tcltk_perform_nr_option/3,
32 tcltk_perform_action_term/2,
33 tcltk_is_sync_event/1,
34
35 tcltk_exists_an_open_node/0, tcltk_goto_an_open_node/0,
36 tcltk_goto_max_reached_node/0, tcltk_goto_timeout_node/0,
37 tcltk_state_exists_with_invariant_violated/0,
38 tcltk_goto_an_invariant_violation/0, tcltk_goto_node_with_id/1,
39 tcltk_try_goto_node_with_id/1,
40 tcltk_current_node_has_no_real_transition/0, tcltk_current_node_has_real_transition/0,
41 tcltk_current_node_has_partial_transition/0,
42 tcltk_goto_a_non_deterministic_node/1, tcltk_goto_a_non_deterministic_output_node/1,
43 tcltk_goto_a_branching_node/0, tcltk_goto_a_non_resetable_node/0,
44 tcltk_state_space_only_has_root_node/0, tcltk_no_constants_or_no_inititalisation_found/0,
45 tcltk_goto_event_list_property_violation/3, tcltk_goto_state_enabling_operation/2,
46 tcltk_find_max_reached_node/0, tcltk_find_max_reached_node/1,
47 tcltk_search_among_existing_nodes/6,
48 find_invariant_violation_among_not_checked_nodes/1,
49
50 tcltk_model_check/11, do_model_check/12,
51 tcltk_set_dbf_mode/1, tcltk_dbf_modes/1,
52 tcltk_mark_current_node_to_be_recomputed_wo_timeout/0,
53 tcltk_mark_current_node_to_be_recomputed_with_random_enum/0,
54 tcltk_finish_current_node_to_be_recomputed_with_random_enum/0,
55 tcltk_hash_model_checking_imprecise/0,
56 tcltk_clear_state_space_and_refocus_to_current_state/0,
57
58 tcltk_constraint_based_check/1,
59 tcltk_constraint_based_check_op/2, tcltk_constraint_based_check_op/3,
60 tcltk_constraint_based_check/2, tcltk_constraint_based_check_with_timeout/2,
61 tcltk_cbc_find_trace/2, tcltk_cbc_find_trace/4,
62 tcltk_cbc_refinement_check/2,
63 tcltk_constraint_find_valid_state/0,
64 tcltk_constraint_find_maximal_valid_state/0,
65 tcltk_constraint_find_dynamic_assertion_violation/0,
66 tcltk_constraint_find_valid_state_with_pred/3,
67 tcltk_constraint_find_deadlock_state/1,
68 tcltk_constraint_find_deadlock_state_with_goal/2,
69 tcltk_constraint_find_deadlock_state_with_goal/3,
70 tcltk_constraint_find_static_assertion_violation/1,
71 tcltk_check_if_feasible_operation/4,
72 cbc_constraint_find_static_assertion_violation/2,
73
74 tcltk_can_backtrack/0, tcltk_can_backtrack/1,
75 tcltk_can_forward/0, tcltk_can_forward/1,
76 tcltk_prepare_for_reload/0,
77 tcltk_backtrack/0, tcltk_backtrack/1, tcltk_fast_forward/0, tcltk_forward/0,
78 tcltk_execute_trace_to_current_node/0, tcltk_find_shortest_trace_to_current_node/1,
79 tcltk_execute_longest_trace_from/1,
80 tcltk_get_history/1,
81 tcltk_perform_action_string/3,
82 tcltk_perform_action/2,
83 tcltk_perform_action/4,
84
85 tcltk_open_xtl_file/1,
86 tcltk_open_z_file/1, tcltk_open_z_tex_file/1,
87 tcltk_open_alloy_file/1, tcltk_open_alloy_prolog_ast_file/1,
88 tcltk_open_cspm_file/1,
89 tcltk_add_csp_file/1,
90 tcltk_load_packaged_eventb_file/1,
91 tcltk_load_cnf_file/1,
92
93 tcltk_verify_alloy_cmd/4,
94 tcltk_get_alloy_cmd_names/1,
95 tcltk_load_alloy_cmd_in_current_translation/1,
96
97 tcltk_machine_has_assertions/0,
98 tcltk_unique_top_level_operation/1, tcltk_top_level_operations/1,
99
100 compute_all_transitions_if_necessary/0,
101 compute_all_transitions_if_necessary/2,
102 compute_state_information_if_necessary/0, % compute transitions and invariant
103 compute_invariant_if_necessary/3,
104 check_invariantKO/2,
105 check_invariantKO/3,
106 catch_clpfd_overflow_call_for_state/4,
107 compute_ample_set/3,
108 compute_all_transitions/2,
109 add_transition/4,
110 add_trans_id/5,
111 add_trans_id_infos/6,
112
113 tcltk_has_eventtrace/1, tcltk_show_eventtrace/2,
114 tcltk_execute_model/3,
115 tcltk_execute_trace_to_node/1,
116 find_shortest_trace_to_node/4,
117
118 tcltk_explore_csp_process/2, tcltk_visualize_csp_process/2,
119 get_csp_process_id/2, get_csp_process_stats/1,
120
121 tcltk_add_user_executed_operation/2, tcltk_add_user_executed_operation/3,
122 tcltk_add_user_executed_operation_typed/4, tcltk_add_user_executed_operation_typed/6,
123 tcltk_add_user_executed_statement/3,
124 tcltk_add_user_modify_variable_transition/2, tcltk_add_user_modify_variable_transition/4,
125 tk_get_possible_language_specific_top_level_event/3,
126
127 tcltk_analyse_option/2,
128 tcltk_analyse/6,
129 tcltk_show_typing_of_variables_and_constants/1,
130 tcltk_show_current_state/1,
131 tcltk_eval/4, interruptable_tcltk_eval/4,
132 tcltk_eval_as_table/2,
133 tcltk_find_value_as_table/3, find_value_in_cur_state/4,
134 tcltk_time_call/1, eval_elapsed_time/1,
135 tcltk_check_csp_assertions/2, tcltk_check_csp_assertion/4, tcltk_check_csp_assertion/5,
136 checkAssertion/5,
137 tcltk_get_vacuous_guards/1,
138 tcltk_get_vacuous_invariants/1, tcltk_get_vacuous_invariants_table/1,
139 tcltk_operations_covered_info/3, operation_name_covered/1,
140 tcltk_show_expression_as_dot/2,
141 generate_dot_from_formula/2,
142 generate_dot_from_invariant/1, generate_dot_from_properties/1, generate_dot_from_assertions/1,
143 generate_dot_from_deadlock_po/1, generate_dot_from_goal/1, generate_dot_from_last_span_predicate/1,
144 generate_dot_from_operation/2, generate_dot_from_operation_with_params/4,
145 write_dot_file_for_pred_expr/2,
146 write_dot_file_for_value_as_tree/2,
147 evaluate_expression_over_history_to_csv_file/2, tcltk_evaluate_expression_over_history/2,
148 translate_error_for_tclk/2,
149 tcltk_set_initial_machine/0, tcltk_clear_machine/0,
150 % set_tcltk_cspm_mode/0, unset_tcltk_cspm_mode/0,
151 tcltk_open_b_file/1, tcltk_open_b_file_for_minor_mode/2,
152 tcltk_run_ltsmin/5,
153 tcltk_save_history_as_trace_file/1,
154 tcltk_animate_until/4,
155
156 tcltk_bv_get_tops/1,
157 tcltk_bv_get_structure/3,
158 tcltk_bv_is_leaf/2,
159 tcltk_bv_get_values/3,
160 tcltk_bv_get_value/3,
161 tcltk_bv_show_formula_as_dot_tree/2,
162 tcltk_bv_show_formula_as_dot_graph/2,
163 tcltk_bv_show_value_as_dot_tree/2,
164 tcltk_bv_get_pp_formula_string/2,
165 tcltk_show_identifier_value_as_dot_tree/2, % a version of the above independent of bvisual
166 tcltk_bv_get_unlimited_value/3, tcltk_bv_get_unlimited_value_atom/2,
167
168 tcltk_get_constants_predicate/1, tcltk_get_constants_predicate/3,
169
170 get_cbc_data_base_id_checks/1, get_cbc_data_base_text_checks/1,
171
172 tcltk_write_uml_sequence_chart/1,
173
174 get_ltl_formulas_from_file/2,
175 tcltk_mcts_auto_play/0, tcltk_mcts_auto_play/1, mcts_auto_play_available/0,
176 tcltk_simplify_predicate/2, % not used
177 tcltk_get_possible_completions/2,
178
179 tcltk_start_simulation/0,
180 tcltk_peform_simulation_steps/4, tcltk_simulation_time/1, tcltk_delay_until_next_step/1,
181 tcltk_backtrack_simulation_step/0, tcltk_can_backtrack_simulation_step/0,
182 tk_get_simb_history_table/1, tcltk_get_simb_history_length/1,
183 tk_get_simb_scheduling_table/1, tk_get_simb_activations/1, tk_get_simb_activation_details/3,
184 tk_get_simb_scheduling_table_stats/1,
185 tcltk_print_simb_activation_graph/1
186 ]).
187
188
189 :- meta_predicate call_pred_on_expanded_state(3,-,-,-).
190 :- meta_predicate map_over_history(3,-).
191 :- meta_predicate tcltk_time_call(0).
192 :- meta_predicate catch_clpfd_overflow_call_for_state(-,-,0,0).
193 :- meta_predicate add_csp_process_id1(-,-,1).
194
195 %prob_use_module(X) :- load_files(X,[if(changed),load_type(source),compilation_mode(compile)]).
196
197 /* load all necessary modules */
198 :- use_module(library(random)).
199 :- use_module(library(lists)).
200
201 :- use_module(library(ordsets)).
202 :- use_module(library(avl)).
203
204 :- use_module(module_information).
205 :- module_info(group,tcltk).
206 :- module_info(description,'Interface between the Tcl/Tk GUI, the CLI and the internal modules.').
207
208 :- use_module(typechecker).
209 :- use_module(self_check).
210 :- use_module(probsrc(preferences)).
211 :- use_module(probsrc(debug)).
212 :- use_module(error_manager).
213 :- use_module(kernel_waitflags).
214 :- use_module(probsrc(tools)).
215 :- use_module(probsrc(specfile)).
216 :- use_module(probsrc(state_space_exploration_modes)).
217 :- use_module(probsrc(translate)).
218 :- use_module(probsrc(b_state_model_check)).
219 :- use_module(probsrc(bmachine)).
220 :- use_module(probsrc(b_interpreter)).
221 :- use_module(probsrc(b_trace_checking)).
222 :- use_module(probsrc(bsyntaxtree)).
223 :- use_module(kernel_objects).
224 :- use_module(probsrc(state_space)).
225 :- use_module(extension('plspec/plspec/plspec_core'),[set_error_handler/1]).
226 :- use_module(extension('plspec/plspec/prettyprinter'),[pretty_print_error/1]).
227 prob_plspec_error_handler(ErrTerm) :- pretty_print_error(ErrTerm),
228 add_internal_error('Error detected by plspec',ErrTerm).
229 :- set_error_handler(tcltk_interface:prob_plspec_error_handler).
230 :- use_module(model_checker).
231 :- use_module(dotsrc(visualize_graph)).
232 :- use_module(dotsrc(state_space_reduction)).
233 :- use_module(dotsrc(state_custom_dot_graph)).
234 :- use_module(succeed_max).
235 %:- use_module(testcase_generator).
236 :- use_module(prozsrc(proz),[open_proz_file/2]).
237 :- use_module(dotsrc(reduce_graph_state_space)).
238 :- use_module(b_read_write_info).
239 %:- use_module(flow).
240 :- use_module(probltlsrc(ltl),[parse_and_preprocess_formula/3, parse_ltlfile/2,
241 pp_ltl_formula/2, ltl_model_check_with_ce1/5,
242 is_fairness_implication/1, tcltk_play_ltl_counterexample/2]).
243 :- use_module(probltlsrc(ctl),[ctl_model_check_with_ce/6, tcltk_play_ctl_counterexample/2]).
244 %:- use_module('promela/promela_ncprinter').
245 :- use_module(extrasrc(bvisual2),[bv_get_top_level/1, bv_expand_formula/3, bv_get_values/3, bv_get_btvalue/4,
246 bv_get_stored_formula_expr/2, bv_is_explanation_node/1, bv_get_value_unlimited/3]).
247 :- use_module(b_show_history).
248 :- use_module(probcspsrc(haskell_csp),[parse_single_csp_declaration/3]).
249 %:- use_module(probcspsrc(slicer_csp),[slice_from_program_point/14]).
250 :- use_module(value_persistance, [save_constants/1,add_new_transitions_to_cache/1]).
251 :- use_module(cbcsrc(cbc_path_solver),[create_testcase_path_nondet/4,verify_alloy_command/5]).
252 :- use_module(dotsrc(uml_generator),[write_uml_sequence_chart/1]).
253
254 /* main program
255 * ============
256 */
257
258
259 /*
260 Start server for LTSmin
261 */
262
263 :- use_module(extension('ltsmin/ltsmin'),[start_ltsmin/4]).
264
265
266 % Backend = symbolic or sequential
267 tcltk_run_ltsmin(Backend,NoDead,NoInv,UsePOR,Res) :-
268 % in case of POR we can also enable/disable use_cbc_analysis preference
269 (UsePOR == true -> MoreFlags = [por] ; MoreFlags=[]),
270 start_ltsmin(Backend, [NoDead, NoInv], MoreFlags,Result),
271 get_check_name(NoDead,NoInv,Kind),
272 process_ltsmin_result(Result,Kind,Res).
273
274 % get_check_name(+NoDead,+NoInv,-Kind)
275 get_check_name(true,false,Kind) :- Kind = 'INVARIANT'.
276 get_check_name(false,true,Kind) :- Kind = 'DEADLOCK'.
277
278 :- use_module(tools_printing,[format_with_colour_nl/4]).
279 :- use_module(extension('ltsmin/ltsmin_trace'),[csv_to_trace/3]).
280 process_ltsmin_result(ltsmin_model_checking_ok,Kind,no_counter_example_found) :-
281 format_with_colour_nl(user_output,green,'LTSMin found no ~w Counter Example',Kind).
282 process_ltsmin_result(ltsmin_counter_example_found(CsvFile),Kind,counter_example_found) :-
283 format_with_colour_nl(user_output,[red,bold],'LTSMin found ~w Counter Example',Kind),
284 csv_to_trace(CsvFile,States,Transitions),
285 length(Transitions,TLen), format('*** REPLAYING TRACE with length ~w: ~w~n', [TLen, Transitions]),
286 % print(States),nl,
287 % length(States,SLen), print(state_len(SLen)),nl,
288 (replay_ltsmin_trace(States,Transitions) -> true
289 ; add_error(process_ltsmin_result,'Could not replay trace:',Transitions)).
290
291 replay_ltsmin_trace([],[]).
292 replay_ltsmin_trace([State|TS],[TransName|TT]) :-
293 (find_successor_state(State,TransName)
294 -> replay_ltsmin_trace(TS,TT)
295 ; add_error(replay_ltsmin_trace,'Could not execute:',trans_to(TransName,State)),fail).
296
297 :- use_module(state_space,[visited_expression/2]).
298 find_successor_state(EState,'$init_state') :- !,
299 tcltk_reset,
300 compute_all_inits, !,
301 is_initial_state_id(NewID),
302 visited_expression(NewID,State), % print(found_initial(State,EState,NewID)),nl,
303 expand_const_and_vars_to_full_store(State,EState), !,
304 tcltk_execute_trace_to_node(NewID).
305 find_successor_state(EState,TransName) :-
306 tcltk_get_options(_),
307 current_options(Options), % print(Options),nl,
308 member( (_,_Action,ActionOpAsTerm,NewID), Options),
309 get_operation_name(ActionOpAsTerm,TransName),
310 visited_expression(NewID,State), % print(found_transition(State,EState,NewID,ActionOpAsTerm)),nl,
311 expand_const_and_vars_to_full_store(State,EState), !, % TODO: only compare variables
312 tcltk_goto_state(ActionOpAsTerm,NewID).
313
314 % compute all INITIALISATIONS
315 compute_all_inits :- compute_all_transitions_if_necessary(root), fail.
316 compute_all_inits :- is_concrete_constants_state_id(ID), compute_all_transitions_if_necessary(ID), fail.
317 compute_all_inits.
318
319 /* -------------------------------------------------------------------- */
320
321 %tcltk_find_untyped_vars(Vs) :- find_untyped_vars(Vs), Vs \== [].
322
323 %tcltk_find_untyped_consts(Vs) :- find_untyped_consts(Vs), Vs \== [].
324
325
326 ?tcltk_find_max_reached_node :- tcltk_find_max_reached_node(_).
327 ?tcltk_find_max_reached_node(ID) :- max_reached_or_timeout_for_node(ID).
328
329
330 tcltk_current_node_has_no_real_transition :-
331 \+ tcltk_current_node_has_real_transition.
332 tcltk_current_node_has_real_transition :-
333 current_state_id(CurID),
334 transition(CurID,Trans,_),
335 (CurID \= root -> true
336 ; Trans = '$partial_setup_constants'
337 -> properties_were_filtered(Nr), Nr>0 % we probably have the partial transition due to prob-ignore pragmas
338 % TODO: detect whether any of the other non-ignored conjuncts were false/unknown
339 ; true),!.
340 tcltk_current_node_has_partial_transition :-
341 current_state_id(CurID),
342 transition(CurID,'$partial_setup_constants',_),!.
343
344 /* --------------------------------------------------------------------- */
345 tcltk_goto_state(ActionAsTerm,StateID) :-
346 (var(StateID) -> print_message(var_state(tcltk_goto_state(ActionAsTerm,StateID))) ; true),
347 (visited_expression_id(StateID)
348 -> true
349 ; ajoin(['State ',StateID,' does not exist. Could be due to insufficient memory. Transition: '],Msg),
350 add_warning(tcltk_goto_state,Msg,ActionAsTerm),
351 fail
352 ),
353 (current_state_id(CurID) -> true ; print('*** no_current_state_id ***'),nl),
354 ? ((transition(CurID,ActionAsTerm,OpID,StateID)
355 ; ActionAsTerm=jump, % jump is used by ProB2 and eclipse interface; TODO: use $jump or something similar to avoid confusion with real operation names
356 transition(CurID,_,OpID,StateID)
357 )
358 -> /* ok: proper transition */
359 set_current_state_id(StateID),
360 add_to_op_trace_ids(OpID),
361 add_id_to_history(CurID)
362 ; (CurID=StateID
363 -> true
364 ; ActionAsTerm=jump, find_id_in_history(StateID,Pos)
365 -> tcltk_backtrack(Pos)
366 ; ActionAsTerm=jump, find_id_in_forward_history(StateID,Pos)
367 -> tcltk_forward(Pos)
368 ; set_current_state_id(StateID),
369 add_to_op_trace_ids(jump(StateID)),
370 add_id_to_history(CurID)
371 )
372 ).
373
374 find_id_in_history(StateId,Position) :- history(H), nth1(Position,H,StateId).
375 find_id_in_forward_history(StateId,Position) :- forward_history(H), nth1(Position,H,forward(StateId,_)).
376
377 add_id_to_history(CurID) :-
378 (retract(history(History))-> true
379 ; add_warning(add_id_to_history,'No history for: ',CurID),History=[]),
380 (History=[],CurID\=root
381 -> add_message(add_id_to_history,'Adding missing root to history: ',CurID),
382 assertz(history([CurID,root])) % fix error in synchronisation between ProB2UI and prolog; should be fixed now
383 ; assertz(history([CurID|History]))
384 ),
385 retractall(forward_history(_)).
386
387
388
389 tcltk_add_new_transition(FromID,Action,ToID,ToTempl,TransInfo) :-
390 tcltk_add_new_transition_transid(FromID,Action,ToID,ToTempl,TransInfo,_TransId).
391
392 tcltk_add_new_transition_transid(FromID,Action,ToID,ToTempl,TransInfo,TransId) :-
393 add_new_transition_transid_with_infos(FromID,[],Action,ToID,ToTempl,TransInfo,TransId).
394
395 % variation with precomputed infos for the initial id (FromID)
396 add_new_transition_transid_with_infos(FromID,PrecomputedInfos,Action,ToID,ToTempl,TransInfo,TransId) :-
397 get_operation_internal_name(Action,OpName), % will use $initialise_machine; important for test 961 and PROOF_INFO
398 get_id_of_node_and_add_if_required_with_skip_check(ToTempl,ToID,Exists,FromID,OpName,PrecomputedInfos),
399 %% print_message(tcltk_add_new_transition(FromID,Action,ToID,Exists)), %%
400 ( Exists=exists,
401 (preferences:preference(store_only_one_incoming_transition,true),
402 \+ operation_not_yet_covered(OpName) % otherwise store at least one transition to achieve coverage
403 %-> transition(FromID,_,_,_) % add transition to prevent deadlock being detected
404 ? ; transition(FromID,Action,TransId,ToID), % identical transition already exists
405 (preference(eventtrace,true) % STORE_DETAILED_TRANSITION_INFOS; TODO: should we use a separate preference?
406 -> check_relevant_transition_info_stored(TransInfo,TransId) % check if we also have the same transition infos
407 ; true
408 )
409 )
410 -> true % // the transition already exists
411 ; % we have a new transition:
412 (preferences:preference(forget_state_space,true)
413 -> (any_transition(FromID,_,_) -> true
414 ; store_transition(FromID,'$NO_DEADLOCK',FromID,TransId)) /* just add dummy transition */
415 ; store_transition(FromID,Action,ToID,TransId),
416 (store_transition_infos(TransInfo,TransId) -> true
417 ; add_internal_error('storing transition info failed', store_transition_infos(TransInfo,TransId))
418 )
419 ),
420 mark_operation_as_covered(OpName),
421 (FromID \= ToID, b_or_z_mode, not_all_transitions_added(ToID)
422 -> add_additional_destination_infos(FromID,OpName,ToID) % e.g., PROOF_INF
423 ; true
424 )
425 ).
426
427 % a version that checks for query/skip operations and then simply returns old id
428 get_id_of_node_and_add_if_required_with_skip_check(_ToTempl,ToID,Exists,FromID,OpName,_PrecomputedInfos) :-
429 animation_mode(b), % csp_and_b mode is *not* ok ; see test 1701 for example
430 b_operation_cannot_modify_state(OpName),
431 !,
432 Exists=exists,ToID=FromID.
433 get_id_of_node_and_add_if_required_with_skip_check(ToTempl,ToID,Exists,FromID,OpName,PrecomputedInfos) :-
434 get_id_of_node_and_add_if_required(ToTempl,ToID,Exists,FromID,OpName,PrecomputedInfos).
435
436
437 :- use_module(probsrc(bit_sets),[bitset_intersection/3]).
438 % will only be called for ToID different from FromID
439 add_additional_destination_infos(FromID,ActionName,ToID) :- %print(add_dest(FromID,ActionName,ToID)),nl,
440 ( b_operation_preserves_invariant(ActionName,Full),
441 \+ invariant_still_to_be_checked(FromID),
442 \+ invariant_violated(FromID) % if Invariant does not hold in previous state,
443 % we have no idea about invariants in the new state (proof assumes invariant holds before)
444 ->
445 (retract(specialized_inv(ToID,OldMask)) -> true ; OldMask = empty),
446 (Full=full_invariant
447 -> assertz(specialized_inv(ToID,invariant_preserved))
448 % unfortunately we cannot yet retract invariant_not_yet_checked
449 ; OldMask=invariant_preserved
450 -> assertz(specialized_inv(ToID,invariant_preserved))
451 ; b_specialized_invariant_mask_for_op(ActionName,Mask) ->
452 (OldMask == empty -> NewMask = Mask ; bitset_intersection(Mask,OldMask,NewMask)),
453 assertz(specialized_inv(ToID,NewMask))
454 ; add_internal_error('Illegal operation: ',add_additional_destination_infos(FromID,ActionName,ToID) ),
455 assertz(specialized_inv(ToID,OldMask))
456 )
457 ; true
458 ).
459 /*
460 Store names of incoming transitions in an AVL tree
461 Used to calculate invariant in presence of proof information
462 */
463 % we could store this information to allow us to quickly generate traces from root to any state
464 %add_additional_destination_infos(FromID,ActionName,ToID) :-
465 % (reached_via(ToID,_,_) -> true ; %TODO: probably we should also store transition id
466 % assertz(reached_via(ToID,ActionName,FromID))).
467 % TO DO: we could store pge disabling information here disabled_operations
468
469
470
471
472 :- use_module(state_space_exploration_modes,[set_depth_breadth_first_mode/1,dbf_modes/3]).
473
474
475 tcltk_set_dbf_mode(Nr) :- dbf_modes(Nr,Mode,_),!,
476 set_depth_breadth_first_mode(Mode).
477 tcltk_set_dbf_mode(Nr) :- add_error(tcltk_set_dbf_mode,'Unknown mode: ',Nr).
478
479 tcltk_dbf_modes(list(Names)) :- findall(N,dbf_modes(_,_,N),Names).
480
481
482 :- dynamic prev_randomise_enumeration_order/1.
483
484
485 tcltk_mark_current_node_to_be_recomputed_wo_timeout :-
486 current_state_id(CurID),
487 format('Recomputing state id=~w without TIME_OUT~n',[CurID]),
488 tcltk_mark_node_for_recomputed(CurID),
489 (use_no_timeout(CurID) -> true ; assertz(use_no_timeout(CurID))).
490
491 % used for recomputing a state with random enumeration
492 tcltk_mark_current_node_to_be_recomputed_with_random_enum :-
493 current_state_id(CurID),
494 format('Recomputing state id=~w with random enumeration~n',[CurID]),
495 tcltk_mark_node_for_recomputed(CurID),
496 % retractall(transition(CurID,_,_,_)), % we no longer delete the transitions; this can cause problems with the history
497 % (if CurID appears earlier in the history and we remove the transition) and lead to error messages
498 % also: for the user it may be good to add new transitions incrementally
499 temporary_set_preference(randomise_enumeration_order,true,PREV),
500 assertz(prev_randomise_enumeration_order(PREV)).
501
502 tcltk_finish_current_node_to_be_recomputed_with_random_enum :-
503 retract(prev_randomise_enumeration_order(PREV)),
504 reset_temporary_preference(randomise_enumeration_order,PREV).
505
506 tcltk_mark_node_for_recomputed(ID) :-
507 (not_all_transitions_added(ID) -> true
508 ; add_id_at_front(ID)),
509 retractall(max_reached_for_node(ID)),
510 retractall(time_out_for_node(ID,_,_)),
511 % TODO: clear b_operation_cache:operation_cached_time_out for relevant nodes
512 (transition(ID,'$partial_setup_constants',ID2)
513 -> delete_node(ID2) ; true),
514 retractall(state_space:transition(ID,'$partial_setup_constants',_,_)).
515
516 transitions_computed_for_node(ID) :-
517 \+(not_all_transitions_added(ID)),
518 \+ is_not_interesting(ID).
519
520
521
522
523 tcltk_set_initial_machine :-
524 tcltk_clear_machine,
525 b_set_initial_machine,
526 set_animation_mode(b).
527
528 % new profiler
529 %:- use_module('../extensions/profiler/profiler.pl').
530 % old profiler
531 %:- use_module(runtime_profiler,[reset_runtime_profiler/0]).
532
533 % the following clears the entire state space and uses the current state as now starting initial state
534 tcltk_clear_state_space_and_refocus_to_current_state :-
535 Op = 'REFOCUS-ANIMATOR',
536 current_expression(_CurID,CurState),
537 (CurState = const_and_vars(ConstID,VarState) ->
538 visited_expression(ConstID,ConstState),
539 transition(root,SetupConstantAction,_,ConstID)
540 ; ConstState=[]),
541 announce_event(reset_specification),
542 (ConstState=[]
543 -> add_trans_id(root,Op,CurState,NewID,_TransId)
544 ; add_trans_id(root,SetupConstantAction,ConstState,NewConstID,_),
545 add_trans_id(NewConstID,Op,const_and_vars(NewConstID,VarState),NewID,_),
546 (retract_open_node(NewConstID) -> true ; true),
547 tcltk_goto_state(Op,NewConstID)
548 ),
549 tcltk_goto_state(Op,NewID),
550 (retract_open_node(root) -> true ; true).
551
552 :- use_module(eventhandling, [announce_event/1]).
553 tcltk_clear_machine :-
554 announce_event(reset_specification),
555 announce_event(clear_specification),
556 reset_tcltk_interface,
557 set_animation_mode(b),
558 bmachine:b_set_empty_machine,
559 reset_errors,
560 % reset_dynamics, % new profiler
561 % Now done via event handling: b_interpreter:reset_b_interpreter,reset_model_checker,
562 garbage_collect_atoms. % reclaim atoms if possible
563
564 :- use_module(prob2_interface, [start_animation/0, update_preferences_from_spec/0]).
565 tcltk_initialise :-
566 update_preferences_from_spec,
567 start_animation,
568 tcltk_try_reload.
569
570 tcltk_reset :- reset_errors,
571 history(H), op_trace_ids(T),
572 current_state_id(CurID),
573 (forward_history(FH) -> true ; FH=[]),
574 state_space_reset,
575 gen_forward_history(T,[CurID|H],FH,FwdHist),
576 retractall(forward_history(_)),
577 assertz(forward_history(FwdHist)).
578
579 gen_forward_history([],H,R,R) :- (H=[root] -> true ; print(unexpected_remaining_hist(H)),nl).
580 gen_forward_history([A|TT],[ID|TH],Acc,Res) :-
581 gen_forward_history(TT,TH,[forward(ID,A)|Acc],Res).
582
583
584
585 /* ---- getting available options ----- */
586
587 tcltk_get_options_dest_info(L) :-
588 tcltk_get_options_dest_info(L,[]). %[no_query_operations]).
589 tcltk_get_options_dest_info(list(DestinationInfos),Options) :-
590 debug_println(9,start_tcltk_get_options_dest_info),
591 % get a list of all options which are skip events
592 current_state_id(CurID),
593 compute_all_transitions_if_necessary(CurID),
594 tcltk_get_candidates_dest_info(List1),
595 findall(Res, (transition(CurID,ActionAsTerm,ID), % check no_query_operations
596 (member(no_query_operations,Options) -> \+ query_op_transition(ActionAsTerm) ; true),
597 option_dest_info(ID,ActionAsTerm,CurID,Res)),
598 DestinationInfos,List1).
599
600 option_dest_info(DestID,ActionAsTerm,CurID,Res) :- DestID=CurID,!,
601 (query_op_transition(ActionAsTerm) -> Res=query ; Res=skip).
602 option_dest_info(DestID,_,_,Res) :- not_all_transitions_added(DestID),!, Res=open.
603 option_dest_info(DestID,_,_,Res) :- invariant_violated(DestID),!,Res=invariant_violated.
604 option_dest_info(DestID,_,_,Res) :- is_deadlocked(DestID),!,Res=deadlock.
605 option_dest_info(DestID,_,_,Res) :- node_satisfies_goal(DestID),!,Res=goal.
606 option_dest_info(_DestID,_,_,unknown).
607
608 query_op_transition(Term) :- b_or_z_mode,
609 get_operation_name(Term,OpName),
610 b_operation_cannot_modify_state(OpName).
611
612 tcltk_get_options(Options) :- tcltk_get_options(Options,no_desc).
613
614 % get list of enabled operations/events:
615 tcltk_get_options(list(Options),GetDesc) :-
616 current_state_id(CurID), debug_println(9,start_tcltk_get_options(CurID)),
617 catch(tcltk_compute_options(CurID,TransSpecs),
618 user_interrupt_signal, (
619 assert_time_out_for_node(CurID,'unspecified_operation_interrupted_by_user',user_interrupt_signal),
620 tcltk_get_computed_options(CurID,TransSpecs)
621 )),
622 extract_actions(TransSpecs,CurID,ActionsAndIDs,Actions,GetDesc),
623 set_current_options(ActionsAndIDs),
624 debug_println(9,finished_tcltk_get_options(CurID)),
625 Actions = Options.
626
627 :- dynamic current_candidate_options/1.
628
629 % a newer version of tcltk_options which returns list of potentially enabled events
630 % in case MAX_OPERATIONS is set to 0; these virtual events are appended at the end of the
631 % current transitions (which at the start are empty; but can be populated by executed by predicate)
632 % if GetDesc = get_desc then it will try to get operation descriptions (e.g., via desc pragma)
633 tcltk_get_options_or_candidates(list(List),GetDesc) :-
634 retractall(current_candidate_options(_)),
635 tcltk_get_options(list(List1),GetDesc),
636 current_state_id(CurID),
637 (state_can_have_additional_candidates(CurID,List1,Candidates)
638 -> assert(current_candidate_options(Candidates)),
639 maplist(get_cand_name,Candidates,List2),
640 append(List1,List2,List)
641 ; List=List1).
642 get_cand_name(candidate(OpName,TO),OpNameRes) :-
643 (TO==true -> ajoin([OpName,' (*timeout*)'],OpNameRes) ; OpNameRes=OpName).
644
645 :- use_module(specfile,[max_operations_zero_for_setup_constants/0,max_operations_zero_for_initialisation/0]).
646 % check if a state can have additional, unexplored transition candidates
647 % either because of MAX_OPERATIONS or MAX_INITIALISATIONS or because of symbolic XTL transitions
648 state_can_have_additional_candidates(CurID,List1,Res) :- List1=[],
649 candidate_setup_constants_or_init(CurID,OpName),!,
650 Res = [candidate(OpName,false)].
651 state_can_have_additional_candidates(_,_,Res) :- \+ \+ max_op_zero_or_xtl_mode(_),
652 tcltk_get_candidate_operations(Res).
653
654 % check if SETUP_CONSTANTS or INITIALISATION were not computed due to MAX_INITIALISATION
655 candidate_setup_constants_or_init(root,Candidate) :- !, b_or_z_mode,
656 (b_machine_has_constants_or_properties
657 -> max_operations_zero_for_setup_constants,
658 Candidate = '$setup_constants'
659 ; max_operations_zero_for_initialisation,
660 Candidate = '$initialise_machine'
661 ).
662 candidate_setup_constants_or_init(CurID,'$initialise_machine') :- b_or_z_mode,
663 is_concrete_constants_state_id(CurID),
664 max_operations_zero_for_initialisation.
665
666 % in case of MAX_OPERATIONS=0 just show the potentially enabled (regular) operations
667 tcltk_get_candidate_operations(Candidates) :-
668 current_state_id(CurID),
669 findall(candidate(OpName,TimeOutOcc),
670 (max_op_zero_or_xtl_mode(OpName),
671 potentially_enabled_operation(CurID,OpName,TimeOutOcc,_Precise)
672 ),Candidates).
673
674 :- use_module(specfile,[max_operations_zero_for_operation/1]).
675 max_op_zero_or_xtl_mode(OpName) :-
676 xtl_mode,!,
677 xtl_transition_parameters(OpName,_Paras).
678 max_op_zero_or_xtl_mode(OpName) :- max_operations_zero_for_operation(OpName).
679
680 :- use_module(xtl_interface,[xtl_symbolic_transition_potentially_enabled/2]).
681 :- use_module(tools_timeout,[time_out_with_factor_call/4]).
682 % get operations with MAX_OPERATIONS=0 which are potentially enabled
683 potentially_enabled_operation(StateId,OpName,TimeOutOccurred,PreciseGuard) :- b_or_z_mode,!,
684 b_top_level_operation(OpName),
685 max_operations_zero_for_operation(OpName),
686 Simplify=true,
687 get_quantified_operation_enabling_condition(OpName, Guard, _, PreciseGuard, Simplify),
688 (time_out_with_factor_call(
689 eclipse_interface:test_boolean_expression_in_node(StateId,Guard,'operation Guard'),
690 0.1, [max_time_out(2000),
691 silent],
692 (format('TIME-OUT checking if ~w is enabled; assuming it could be.~n',[OpName]),TimeOutOccurred=true)
693 )
694 -> (var(TimeOutOccurred) -> TimeOutOccurred=false ; true)).
695 potentially_enabled_operation(StateId,OpName,false,imprecise) :- xtl_mode,!,
696 visited_expression(StateId,State),
697 xtl_symbolic_transition_potentially_enabled(OpName,State).
698
699 % get the name of a currently stored candidate option/operation
700 % the option list was empty and we inserted a list of candidate operations
701 % (e.g., because MAX_OPERATIONS was 0)
702 tcltk_get_options_candidate_nr_name(Nr,OpName) :-
703 current_candidate_options(List),
704 current_options(List1), length(List1,Len),
705 N1 is Nr-Len, % the candidate of potentially enabled events are listed after the regular options
706 nth1(N1,List,candidate(OpName,_)).
707
708 % get destination info for candidate operations in the Operations View
709 tcltk_get_candidates_dest_info(L) :- current_state_id(CurID),
710 current_candidate_options(Cands),!,
711 maplist(get_cand_dest(CurID),Cands,L).
712 tcltk_get_candidates_dest_info([]).
713 get_cand_dest(_,candidate(_,true),R) :- !, R=time_out.
714 get_cand_dest(CurID,candidate(OpName,_),Res) :-
715 transition(CurID,ActionTerm,_ActId,_DestID),
716 get_operation_name(ActionTerm,OpName),!,
717 % it is a candidate for which we already have a transition
718 Res = reached_candidate.
719 get_cand_dest(_,_,candidate).
720
721 :- use_module(tools_timeout,[time_out_call/2]).
722 :- use_module(translate,[translate_event_with_src_and_target_id/4]).
723 % GetDesc is either no_desc or get_desc
724 extract_actions([],_,[],[],_).
725 extract_actions([(ActionId,Term,Dst)|T],CurID,[(ActionId,Str,Term,Dst)|Srest],[Str|ET],GetDesc) :-
726 extract_action(CurID,Term,Dst,Str,GetDesc),
727 extract_actions(T,CurID,Srest,ET,GetDesc).
728
729 extract_action(CurID,ActionAsTerm,DestID,Str,get_desc) :-
730 tcltk_get_operation_description_for_trans(CurID,ActionAsTerm,DestID,Desc),!, Str=Desc.
731 extract_action(CurID,ActionAsTerm,DestID,Str,_) :-
732 time_out_call(translate_event_with_src_and_target_id(ActionAsTerm,CurID,DestID,Str), Str='**TIMEOUT**').
733
734 % compute transitions and invariant info
735 compute_state_information_if_necessary :-
736 current_state_id(CurID),
737 compute_state_information_if_necessary(CurID).
738 compute_state_information_if_necessary(CurID) :-
739 compute_all_transitions_if_necessary(CurID,true). % CheckInvariant=true
740
741 tcltk_compute_options(CurID,ActionsAndIDs) :-
742 compute_state_information_if_necessary(CurID),
743 %print(found_transitions(CurID)),nl,
744 tcltk_get_computed_options(CurID,ActionsAndIDs).
745
746 tcltk_get_computed_options(CurID,ActionsAndIDs) :-
747 findall((ActId,ActionAsTerm,DestID),
748 transition(CurID,ActionAsTerm,ActId,DestID),
749 % TO DO: sort or group, especially if we randomize transition/3
750 ActionsAndIDs).
751
752 tcltk_get_status(INVVIOLATED,MAXREACHED,TIMEOUT) :- debug_println(9,start_tcltk_get_status),
753 current_state_id(CurID),
754 (time_out_for_invariant(CurID) -> INVVIOLATED = 2
755 ; get_invariant_violated(CurID) -> INVVIOLATED = 1
756 ; not_invariant_checked(CurID) -> INVVIOLATED = 3
757 ; not_interesting(CurID) -> INVVIOLATED = 3
758 ; INVVIOLATED = 0
759 ),
760 (max_reached_for_node(CurID) -> MAXREACHED = 1
761 ; not_interesting(CurID) -> MAXREACHED = 2
762 ; MAXREACHED = 0),
763 (time_out_for_node(CurID,_,time_out) -> TIMEOUT = 1
764 ; time_out_for_node(CurID,_,user_interrupt_signal) -> TIMEOUT = 3 % CTRL-C
765 ; time_out_for_node(CurID,_,virtual_time_out(kodkod_timeout)) -> TIMEOUT = 1 % KODKOD; regular time-out
766 ; time_out_for_node(CurID,_,_) -> TIMEOUT = 2 % virtual_time_out
767 ; TIMEOUT = 0),
768 debug_println(9,got_status(INVVIOLATED,MAXREACHED,TIMEOUT)).
769
770 tcltk_get_ops_with_virtual_timeout(OpNameList) :-
771 current_state_id(StateId),
772 ops_with_timeout(StateId,OpNameList,virtual_time_out(_)).
773 tcltk_get_ops_with_real_timeout(OpNameList) :-
774 current_state_id(StateId),
775 ops_with_timeout(StateId,OpNameList,time_out).
776 % Note: possibilities are currently: time_out, user_interrupt_signal, virtual_time_out(_)
777 tcltk_get_ops_user_interrupt_occurred :-
778 current_state_id(StateId),
779 time_out_for_node(StateId,_,user_interrupt_signal).
780 ops_with_timeout(StateId,OpNameList,Type) :-
781 findall(OpName, time_out_for_node(StateId,OpName,Type), OpNameList).
782
783
784 %%fd_copy_term(X,Y,true) :- copy_term(X,Y).
785
786
787
788 /* --------------------------------------------------------------------- */
789
790 tcltk_get_history(list(StringHistory)) :- debug_println(9,start_tcltk_get_trace),
791 get_action_trace(History),
792 convert_trace_to_list_of_strings(History,StringHistory).
793
794 convert_trace_to_list_of_strings([],[]).
795 convert_trace_to_list_of_strings([action(AS,_)|T],[AS|CT]) :- !,
796 %truncate_atom(AS,1000,TruncatedAS), % especially SETUP_CONSTANTS, INITIALISATION can be very large; leading to performance issues
797 % get_action_trace now truncates
798 convert_trace_to_list_of_strings(T,CT).
799 convert_trace_to_list_of_strings([H|T],[H|CT]) :- convert_trace_to_list_of_strings(T,CT).
800
801 tcltk_write_uml_sequence_chart(File) :-
802 write_uml_sequence_chart(File).
803
804 /* --------------------------------------------------------------------- */
805
806 :- dynamic cached_state_as_strings/2.
807 :- use_module(probsrc(state_space),[try_compute_depth_of_state_id/2]).
808 %tcltk_get_state(list(List)) :- !,List=[]. % comment in to disable State Properties View in ProB Tcl/Tk
809 tcltk_get_state(list(List)) :- debug_println(9,start_tcltk_get_state),
810 current_expression(CurID,CurState),
811 compute_state_information_if_necessary(CurID),
812 (time_out_for_invariant(CurID) -> List = [invariant_time_out|List1]
813 ; invariant_violated(CurID) -> List = [invariant_violated|List1]
814 ; invariant_not_yet_checked(CurID) -> List = [invariant_not_checked|List1]
815 ; CurID=root -> List = List1
816 ; CurState = concrete_constants(_) -> List = List1
817 ; specfile:b_or_z_mode -> List=[invariant_ok|List1]
818 % only in b_or_z_mode do we add not_invariant_checked facts and check invariant while model checking/animating
819 ; List=List1),
820 (try_compute_depth_of_state_id(CurID,Depth),
821 translate:translate_properties_with_limit(['='(depth,Depth)],[DS])
822 -> List1 = [DS|StateAsStrings]
823 ; List1 = StateAsStrings),
824 (cached_state_as_strings(CurID,StateAsStrings) % TO DO: separate constant / variable properties ?
825 -> true
826 ; retractall(cached_state_as_strings(_,_)),
827 time_out_call(tcltk_get_state(StateAsStrings,CurState),
828 StateAsStrings = ['***TIMEOUT-PROPERTY***']),
829 assertz(cached_state_as_strings(CurID,StateAsStrings))
830 ),
831 debug_println(9,finished_tcltk_get_state).
832
833 tcltk_get_state(StateAsStrings,State) :-
834 %print(get_state),nl,
835 findall(Prop,property(State,Prop),StateProps),
836 %print(translating(StateProps)),nl,
837 translate:translate_properties_with_limit(StateProps,StateAsStrings).
838 %print(translated(StateAsStrings)),nl.
839
840
841 tcltk_get_state_errors(list(ErrorsAsStrings)) :-
842 get_current_state_errors(_CurID,Errors),
843 translate_state_errors(Errors,ErrorsAsStrings).
844
845 get_current_state_errors(CurID,Errors) :-
846 current_state_id(CurID),
847 findall(Error,( state_error(CurID,_,Error), Error \== invariant_violated ), Errors).
848
849 :- dynamic last_detailed_error/3.
850
851 reset_tcltk_interface :- debug_println(19,reset_tcltk),
852 retractall(cbc_inv_error_found(_,_)), reset_nr_cbc_sols,
853 retractall(find_flag(_,_)),
854 retractall(resetable_node(_)),
855 retractall(non_det_constant(_)),
856 retractall(current_candidate_options(_)),
857 retractall(cached_state_as_strings(_,_)),
858 retractall(last_detailed_error(_,_,_)).
859
860 tcltk_get_detailed_state_error(Num,ErrorMsg,Srow,Scol,Erow,Ecol) :-
861 retractall(last_detailed_error(_,_,_)),
862 get_current_state_errors(CurID,Errors),
863 nth0(Num,Errors,Error),
864 !,
865 explain_state_error(Error,Span,ErrorMsg),
866 assertz(last_detailed_error(CurID,Span,ErrorMsg)), % save info, so that we can debug if Span contains a span_predicate
867 %(generate_dot_from_last_span_predicate('~/Desktop/err.dot') -> true ; true),
868 (extract_line_col_for_main_file(Span,Srow,Scol,Erow,Ecol)
869 -> true
870 ; Srow= -1, Scol= -1, Erow= -2, Ecol= -2).
871
872
873 :- use_module(probsrc(tools_commands),[edit_file/2]).
874 :- use_module(specfile,[b_absolute_file_name_relative_to_opened_file/2]).
875 % show location of state error in external editor
876 tcltk_open_state_error_in_editor(Num) :-
877 get_current_state_errors(_,Errors),
878 nth0(Num,Errors,Error),
879 (get_state_error_span(Error,Span)
880 -> (extract_file_line_col(Span,FILE,LINE,_COL,_Erow,_Ecol)
881 -> b_absolute_file_name_relative_to_opened_file(FILE,AFILE),
882 edit_file(AFILE,LINE)
883 ; add_error(tcltk_open_state_error_in_editor,'Could not extract file position: ',Span)
884 )
885 ; add_error(tcltk_open_state_error_in_editor,'Could not extract source location for state error: ',Num)
886 ).
887
888 can_generate_dot_from_last_state_error :-
889 last_detailed_error(_CurID,ErrSpan,_),!,
890 get_inner_span(ErrSpan,span_predicate(_,_,_)).
891 can_generate_dot_from_last_state_error :-
892 current_state_id(CurID), state_error(CurID,_,_). % not sure if it is really possible to extract span predicate though
893 generate_dot_from_last_span_predicate(FileName) :-
894 current_state_id(CurID),
895 (last_detailed_error(CurID,ErrSpan,_ErrorMsg) % also works with expressions
896 -> true
897 ; tcltk_get_detailed_state_error(0,_,_,_,_,_), % try and generate error description
898 last_detailed_error(CurID,ErrSpan,_)
899 ),
900 get_inner_span(ErrSpan,span_predicate(P,LS,State)),
901 (State=[], visited_expression(CurID,S),
902 state_corresponds_to_initialised_b_machine(S,FullState)
903 -> true % span predicates from event trace do not have the current state, add state
904 ; FullState=State),
905 write_dot_file_for_pred_expr_and_state(P, LS, FullState,FileName).
906
907 get_inner_span(pos_context(Span1,_,_),SP) :- !,
908 get_inner_span(Span1,SP).
909 get_inner_span(SP,SP).
910
911 tcltk_current_state_invariant_violated :-
912 current_state_id(CurID),
913 get_invariant_violated(CurID).
914
915 tcltk_state_exists_with_invariant_violated :-
916 (invariant_violated(_) -> true). % would be too expensive for XTL mode
917
918 % also checks for other formalisms whether something similar to an invariant violation holds
919 get_invariant_violated(CurID) :- xtl_mode,!,
920 visited_expression(CurID,CurState),
921 xtl_invariant_violated(CurState).
922 get_invariant_violated(CurID) :- invariant_violated(CurID).
923
924 /* --------------------------------------------------------------------- */
925
926 :- use_module(b_trace_checking, [tcltk_save_history_as_trace_file/2]).
927 tcltk_save_history_as_trace_file(File) :-
928 tcltk_save_history_as_trace_file(prolog,File).
929
930
931 /* --------------------------------------------------------------------- */
932
933 :- use_module(translate, [get_bexpression_column_template/4]).
934 evaluate_bexpr_over_state(Stream,Expr,ValueTemplate,Columns,ResultColStrings,BState,OpName) :-
935 format(Stream,'~w,',[OpName]),
936 b_compute_expression_with_prob_ids(Expr,BState,Value),
937 copy_term((ValueTemplate,Columns),(Value,ResultCols)),
938 my_print_csv_value(ResultCols,Stream),
939 maplist(translate:translate_bvalue,ResultCols,ResultColStrings),
940 nl(Stream).
941
942 % evaluate an expression over the history and save the result to a CSV file
943 evaluate_expression_over_history_to_csv_file(Expr,File) :-
944 parse_machine_expression(Expr,TypedExpr),
945 get_bexpression_column_template(TypedExpr,ValueTemplate,ColHeaders,Columns),
946 format('Writing CSV file: ~w~n',[File]),
947 open(File,write,Stream),
948 format(Stream,'OPERATION,',[]),
949 my_print_csv_atoms(ColHeaders,Stream),
950 call_cleanup(map_over_history(evaluate_bexpr_over_state(Stream,TypedExpr,ValueTemplate,Columns),_),
951 close(Stream)),
952 format('Finished writing CSV file: ~w~n',[File]).
953
954
955 tcltk_evaluate_expression_over_history(Expr,list([list(['OPERATION','State Id'|ColHeaders])|ColumnLists])) :-
956 parse_machine_expression(Expr,TypedExpr),
957 get_bexpression_column_template(TypedExpr,ValueTemplate,ColHeaders,Columns),
958 map_over_history(evaluate_bexpr_over_state(user_output,TypedExpr,ValueTemplate,Columns),
959 ColumnLists).
960
961 map_over_history(Pred,ResColumnLists) :-
962 history(H), current_state_id(CurID),
963 reverse([CurID|H],RH),
964 get_action_trace(T), reverse(T,RT),
965 maplist(call_pred_on_expanded_state(Pred),RH,[action(root,root)|RT],ColumnLists),
966 prune_list(ColumnLists,ResColumnLists).
967 % remove unknown elements at front for Tk
968 prune_list([unknown|T],Res) :- !, prune_list(T,Res).
969 prune_list(R,R).
970
971 call_pred_on_expanded_state(_Pred,root,_,ColList) :- !, ColList=unknown.
972 call_pred_on_expanded_state(Pred,StateId,action(_,ActionTerm),ResColList) :- print(StateId),nl,
973 get_operation_name(ActionTerm,OpName),
974 format('Processing state ~w (reached via ~w)~n',[StateId,OpName]),
975 visited_expression(StateId,State),
976 (state_corresponds_to_initialised_b_machine(State,BState)
977 -> call(Pred,ColList,BState,OpName), ResColList = list([OpName,StateId|ColList])
978 ; ResColList = unknown ).
979
980 :- use_module(eval_let_store,[extend_state_with_probids_and_lets/2]).
981 b_compute_expression_with_prob_ids(Expr,BState,Value) :-
982 extend_state_with_probids_and_lets(BState,BState2),
983 b_interpreter:b_compute_expression_nowf(Expr,[],BState2,Value,'Tcl/Tk',0).
984
985
986 my_print_csv_atoms([A,B|T],Stream) :- !, format(Stream,'"~w",',[A]),
987 my_print_csv_atoms([B|T],Stream).
988 my_print_csv_atoms([A],Stream) :- format(Stream,'"~w"~n',[A]).
989
990 my_print_csv_value([A,B|T],Stream) :- !,
991 my_print_csv_value([A],Stream),
992 write(Stream,','),
993 my_print_csv_value([B|T],Stream).
994 my_print_csv_value([V],Stream) :-
995 (no_quotes_necessary(V) -> true ; write(Stream,'"')),
996 translate:print_bvalue_stream(Stream,V),
997 (no_quotes_necessary(V) -> true ; write(Stream,'"')).
998
999 no_quotes_necessary(int(_)).
1000 no_quotes_necessary(pred_false).
1001 no_quotes_necessary(pred_true).
1002
1003
1004 /* --------------------------------------------------------------------- */
1005
1006 :- use_module(probltlsrc(ltl),[preprocess_formula/2]).
1007
1008 % it is actually more tcltk_animate_until
1009 tcltk_animate_until(FormulaAsAtom,StepsExecuted,Result) :-
1010 CheckingType = ltl_state_property, % no_loop means we check entire animation trace from CurID for LTL property
1011 tcltk_animate_until(FormulaAsAtom,CheckingType,StepsExecuted,Result).
1012 tcltk_animate_until(FormulaAsAtom,CheckingType,StepsExecuted,Result) :-
1013 current_state_id(CurID),
1014 MaxNrOfSteps = 1000,
1015 tcltk_animate_until(FormulaAsAtom,CurID,MaxNrOfSteps,CheckingType,StepsExecuted,Result,_,_).
1016 tcltk_animate_until(FormulaAsAtom,CurID,MaxNrOfSteps,CheckingType,StepsExecuted,Result,NewStateId,OpIds) :-
1017 parse_and_preprocess_formula(FormulaAsAtom,ltl,Ltl2),
1018 % TODO: warn if CheckingType=ltl_state_property and we do not have an atomic state property
1019 prob2_interface:find_trace_until_ltl(CurID,random,Ltl2,CheckingType,MaxNrOfSteps,Trace,Result),
1020 % Result: ltl_found, maximum_nr_of_steps_reached, deadlock
1021 length(Trace,StepsExecuted),
1022 (last(Trace,op(_,_,_,NewStateId)) -> true ; NewStateId=CurID),
1023 debug_format(19,'Found trace of length ~w to ~w~n',[StepsExecuted,Result]),
1024 maplist(get_trans_id,Trace,OpIds),
1025 execute_id_trace_from_current(OpIds).
1026
1027 get_trans_id(op(OpID,_Name,_CurID,_NextID),OpID).
1028
1029
1030
1031 tcltk_random_perform :- tcltk_random_perform2(_,fully_random).
1032 tcltk_random_perform(Kind) :- tcltk_random_perform2(_,Kind).
1033
1034 % Kind can be fully_random, no_self_loops, explore_open
1035 % TODO: other options like out_degree, ...
1036 tcltk_random_perform2(ActionId,Kind) :-
1037 current_options(Opts),
1038 current_state_id(CurID),
1039 (Kind=explore_open, exclude(is_already_explored,Opts,Options2), Options2 = [_|_]
1040 -> true % try and find unexplored successor
1041 ; is_heuristic(Kind),
1042 maplist(compute_heuristic(Kind),Opts,HOpts),
1043 sort(HOpts,SHOpts),
1044 keep_min_heuristic(SHOpts,Opts1)
1045 ->
1046 (exclude(is_already_explored,Opts1,Options2), Options2 = [_|_]
1047 -> true % among the nodes with the lowest heuristic value choose open nodes first; to try find new values
1048 ; Options2=Opts1)
1049 ; Kind=execute_first_enabled, Opts = [First|_] -> Options2 = [First]
1050 ; Kind\=fully_random,
1051 exclude(is_self_loop(CurID),Opts,Options2), Options2 = [_|_] -> true % try find different node
1052 ; Options2=Opts),
1053 length(Options2,Len),
1054 (Len>0
1055 -> L1 is Len+1,
1056 random(1,L1,RanChoice),
1057 tcltk_perform_nr_option(RanChoice,Options2,ActionId)
1058 ; true
1059 ).
1060
1061 is_already_explored((_Id,_Action,_,NextId)) :- \+ not_all_transitions_added(NextId).
1062 is_self_loop(CurId,(_Id,_Action,_,CurId)).
1063
1064 is_heuristic(heuristic).
1065 is_heuristic(min_out_degree).
1066 :- use_module(probsrc(state_space_exploration_modes),[compute_heuristic_function_for_state_id/2]).
1067 :- use_module(probsrc(state_space),[out_degree/2, compute_transitions_if_necessary/1]).
1068 compute_heuristic(Kind,(Id,Action,ActTerm,NextId),heurval(HeurVal,Id,Action,ActTerm,NextId)) :-
1069 compute_h2(Kind,NextId,HeurVal).
1070 compute_h2(heuristic,NextId,HeurVal) :-
1071 compute_heuristic_function_for_state_id(NextId,HeurVal).
1072 compute_h2(min_out_degree,NextId,HeurVal) :-
1073 compute_transitions_if_necessary(NextId),
1074 out_degree(NextId,HeurVal).
1075 %compute_h2(out_degree,NextId,HeurVal) :-
1076
1077 % only keep the maximal value
1078 keep_min_heuristic([heurval(HeurVal,Id,Action,ActTerm,NextId)|HT],
1079 [(Id,Action,ActTerm,NextId)|T]) :- keep_min2(HT,HeurVal,T).
1080 keep_min2([heurval(HeurVal,Id,Action,ActTerm,NextId)|HT],HeurVal,
1081 [(Id,Action,ActTerm,NextId)|T]) :- !, keep_min2(HT,HeurVal,T).
1082 keep_min2(_,_,[]).
1083
1084
1085 tcltk_get_line_col(Nr,list(StartLine),list(StartCol),list(EndLine),list(EndCol)) :- /* just get the location in the source code */
1086 current_options(Options),
1087 nth1(Nr,Options,(_Id,_Action,ActionAsTerm,_NewID)),
1088 %print(get_source_text(ActionAsTerm)),nl,
1089 time_out_call(get_source_text_positions(ActionAsTerm,StartLine,StartCol,EndLine,EndCol),
1090 add_error_and_fail(tcltk_get_line_col,'Timeout determining source code position: ',ActionAsTerm)),
1091 StartLine \= []. % otherwise fail
1092 % print(startlines(StartLine)),nl,print(startcols(StartCol)),nl,
1093 % print(endlines(EndLine)),nl, print(endcol(EndCol)),nl.
1094
1095 tcltk_is_sync_event(Nr) :-
1096 current_options(Options),
1097 nth1(Nr,Options,(_Id,_Action,ActionAsTerm,_NewID)),
1098 extract_span_from_event(ActionAsTerm,SPAN,_,_),
1099 extract_span_info(SPAN,Info),
1100 % print(extracted_span_info_for_sync(Info,SPAN)),nl,
1101 member(sharing,Info).
1102
1103 % get textual description of nth option in current options
1104 % is derived from description pragma attached to operations
1105 tcltk_get_options_nr_description(Nr,Desc) :-
1106 current_state_id(CurID),
1107 current_options(Options),
1108 nth1(Nr,Options,(_ActionId,_Action,ActionAsTerm,NewID)),
1109 tcltk_get_op_desc_or_other_info_for_trans(CurID,ActionAsTerm,NewID,Desc).
1110
1111 :- use_module(probsrc(bmachine),[source_code_for_identifier/6]).
1112 % get textual description for entry Nr in the Tk history view
1113 tcltk_get_history_nr_description(Nr,Desc) :-
1114 get_history_trans(Nr, CurID,ActionAsTerm,DestID),
1115 tcltk_get_op_desc_or_other_info_for_trans(CurID,ActionAsTerm,DestID,Desc).
1116
1117 get_history_trans(Nr, CurID,ActionAsTerm,DestID) :-
1118 op_trace_ids(OpTrace),
1119 nth0(Nr,OpTrace,TransId),
1120 history(StateIds),
1121 nth0(Nr,StateIds,CurID),
1122 transition(CurID,ActionAsTerm,TransId,DestID).
1123
1124 :- use_module(probsrc(bmachine),[source_code_for_identifier/6]).
1125 % show source code origin of entry number Nr in the Tk history view
1126 tcltk_get_history_nr_origin_str(Nr,Desc) :-
1127 get_history_trans(Nr, _CurID,ActionAsTerm,_DestID),
1128 get_operation_name(ActionAsTerm,OpID),
1129 source_code_for_identifier(OpID,operation,subst,OriginStr,_,_),
1130 Desc=OriginStr. %ajoin([OpID,' ', OriginStr],Desc).
1131
1132
1133 :- use_module(probsrc(tools_commands),[edit_file/2]).
1134 :- use_module(probsrc(error_manager),[extract_file_line_col/6]).
1135 % open source code in external editor for origin of entry number Nr in the history view
1136 tcltk_edit_history_nr_origin_str(Nr) :-
1137 get_history_trans(Nr, _CurID,ActionAsTerm,_DestID),
1138 get_operation_name(ActionAsTerm,OpID),
1139 source_code_for_identifier(OpID,operation,subst,_OriginStr,OriginTerm,_),
1140 extract_file_line_col(OriginTerm,FILE,LINE,_COL,_Erow,_Ecol),
1141 edit_file(FILE,LINE).
1142
1143 :- use_module(probsrc(state_space_exploration_modes),
1144 [compute_heuristic_function_for_state_id/2]).
1145 tcltk_get_operation_description_for_trans(CurID,ActionAsTerm,DestID,Desc) :-
1146 (b_or_z_mode ; xtl_mode),
1147 get_operation_description_for_transition(CurID,ActionAsTerm,DestID,Desc).
1148
1149 % this will also look for other info if available
1150 tcltk_get_op_desc_or_other_info_for_trans(CurID,ActionAsTerm,DestID,Desc) :-
1151 (tcltk_get_operation_description_for_trans(CurID,ActionAsTerm,DestID,Desc) -> true
1152 ; compute_heuristic_function_for_state_id(DestID,int(HeuristicVal)),
1153 ajoin(['Heuristic=',HeuristicVal],Desc)). % TODO: more infos, like deadlock, GOAL, ...
1154
1155 % counter-part to tcltk_get_options, to execute the option/operation number Nr in that list
1156 tcltk_perform_nr(Nr) :-
1157 current_options(Options),
1158 tcltk_perform_nr_option(Nr,Options,_).
1159
1160 tcltk_perform_nr_option(Nr,Options,ActionId) :-
1161 (nth1(Nr,Options,(ActionId,_Action,ActionAsTerm,NewID))
1162 -> (forward_history([forward(NewID,ActionId)|_FwdHist])
1163 -> tcltk_forward
1164 ; tcltk_perform_action_term(ActionAsTerm,NewID),
1165 retractall(forward_history(_))
1166 )
1167 ; tcltk_backtrack /* interpret as backtrack */
1168 ).
1169
1170
1171 tcltk_can_backtrack :- history([_|_]).
1172 tcltk_can_backtrack(Len) :- history(His), length(His,Len),Len>0.
1173 tcltk_can_backtrack_to_state_id(StateID) :- history([StateID|_]).
1174
1175 tcltk_backtrack :- \+ tcltk_can_backtrack,!,
1176 print_message('Cannot backtrack'),fail.
1177 tcltk_backtrack :-
1178 remove_from_op_trace_ids(LastTraceH), % remove last operation id from op_id trace
1179 retract(history(History)),
1180 retract(current_state_id(CurID)),!,
1181 History= [LastID|EHist],
1182 assertz(history(EHist)),
1183 %visited_expression(LastID,LastExpr,LastBody),
1184 assertz(current_state_id(LastID)),
1185 (retract(forward_history(FwdHist)) -> true ; FwdHist=[]),
1186 assertz(forward_history([forward(CurID,LastTraceH)|FwdHist])).
1187
1188 % used for right-clicks in history
1189 tcltk_backtrack(N) :- N =< 0, !.
1190 tcltk_backtrack(N) :- % TO DO: more efficient version
1191 tcltk_backtrack, N1 is N-1, tcltk_backtrack(N1).
1192
1193 :- dynamic saved_forward_history/2.
1194 :- volatile saved_forward_history/2.
1195
1196
1197 % save certain information to restore when reload is completed:
1198 tcltk_prepare_for_reload :-
1199 saved_forward_history([_|_],Mode), % tcltk_try_reload not executed; probably reloading failed
1200 animation_mode(Mode),
1201 current_state_id(root), %user has not performed another trace
1202 get_action_trace([]),!,
1203 format('Keeping saved forward history~n',[]). % so that user can fix error and re-load again
1204 tcltk_prepare_for_reload :-
1205 retractall(saved_forward_history(_,_)),
1206 get_action_term_trace(TrA),reverse(TrA,Tr),
1207 %print(prepare_reloading(Tr)),nl,
1208 maplist(gen_unknown_forward,Tr,SavedForwardHistory),
1209 animation_mode(Mode),
1210 % TO DO: add current forward history as well and restore when doing a reload with fastforward
1211 % forward_history(ForwHis), maplist(remove_forward_id,ForwHis,SavedPrevForwHis),
1212 assertz(saved_forward_history(SavedForwardHistory,Mode)).
1213
1214 %remove_forward_id(forward(_,Step),forward('$UNKNOWN',Step)).
1215 gen_unknown_forward(Step,forward('$UNKNOWN',Step)). % the forward ID is unknown
1216
1217 % try reloading certain information from previous load of same model
1218 tcltk_try_reload :-
1219 retract(saved_forward_history(SavedForwardHistory,Mode)),
1220 animation_mode(Mode), % we are in the same mode as when saved
1221 !,
1222 % TO DO: also retractall in other places
1223 %print(reloading(SavedForwardHistory)),nl,
1224 retractall(forward_history(_)),
1225 assertz(forward_history(SavedForwardHistory)).
1226 tcltk_try_reload.
1227
1228
1229 % go forward while possible
1230 tcltk_fast_forward :- tcltk_can_forward,!, tcltk_forward,
1231 current_state_id(CurID),
1232 compute_state_information_if_necessary(CurID),
1233 tcltk_fast_forward.
1234 tcltk_fast_forward.
1235
1236 tcltk_can_forward :- forward_history([_|_]).
1237 tcltk_can_forward(Len) :- forward_history(His), length(His,Len), Len>0.
1238
1239
1240 tcltk_forward(N) :- N =< 0, !.
1241 tcltk_forward(N) :- % TO DO: more efficient version
1242 tcltk_forward, N1 is N-1, tcltk_forward(N1).
1243
1244
1245 tcltk_forward :- \+ tcltk_can_forward,!,
1246 print_message('Cannot go forward'),fail.
1247 tcltk_forward :-
1248 retract(forward_history([forward(FwdID,LastTraceH)|FwdHist])),
1249 retract(history(EHist)),
1250 retract(current_state_id(CurID)),!,
1251 go_forward(FwdID,LastTraceH,FwdHist,CurID,EHist).
1252 go_forward('$UNKNOWN',ActionAsTerm,FwdHist,CurID,EHist) :-
1253 transition(CurID,ActionAsTerm,TransitionID,FwdID),!,
1254 %print(found(CurID,ActionAsTerm,TransitionID,FwdID)),nl,
1255 go_forward(FwdID,TransitionID,FwdHist,CurID,EHist).
1256 % TO DO: try and execute by predicate in case max_reached is true !
1257 go_forward('$UNKNOWN',ActionAsTerm,FwdHist,CurID,EHist) :-
1258 is_initialisation_op(ActionAsTerm),
1259 % maybe PROPERTIES/INITIALISATION has changed; try and replay with other values
1260 transition(CurID,ActionAsTerm2,TransitionID,FwdID),
1261 is_initialisation_op(ActionAsTerm2),
1262 !,
1263 %print(found(CurID,ActionAsTerm,TransitionID,FwdID)),nl,
1264 translate_event(ActionAsTerm,Action),
1265 format('Could not replay ~w.~nUsing other possible transition instead.~n',[Action]),
1266 go_forward(FwdID,TransitionID,FwdHist,CurID,EHist).
1267 go_forward('$UNKNOWN',ActionAsTerm,_FwdHist,CurID,EHist) :- !,
1268 assertz(forward_history([])),
1269 assertz(history(EHist)),
1270 assertz(current_state_id(CurID)),
1271 translate_event(ActionAsTerm,Action),
1272 add_error(tcltk_forward,'Cannot replay step after reload: ',Action).
1273 go_forward(FwdID,LastTraceH,FwdHist,CurID,EHist) :-
1274 assertz(forward_history(FwdHist)),
1275 assertz(history([CurID|EHist])),
1276 add_to_op_trace_ids(LastTraceH),
1277 assertz(current_state_id(FwdID)),
1278 re_execute_transition_if_necessary(CurID,LastTraceH,FwdID).
1279 %visited_expression(FwdID,FwdExpr,FwdBody).
1280
1281 is_initialisation_op(Op) :-
1282 (functor(Op,'$setup_constants',_) ; functor(Op,'$partial_setup_constants',_)
1283 ; functor(Op,'$initialise_machine',_)).
1284
1285 % re-execute operation with side-effects if necessary and if preference set
1286 % TO DO: tie into tcltk_perform so that not only the forward button but also double click
1287 % in operations pane works
1288 re_execute_transition_if_necessary(FromID,TransitionID,ToID) :-
1289 b_or_z_mode,
1290 get_preference(re_execute_operations_with_side_effects,true),
1291 bmachine_construction:external_procedure_used(_), % TO DO: check if operation itself has side-effects
1292 !,
1293 (re_execute_transition(FromID,TransitionID,ToID)
1294 -> true
1295 ; add_error(tcltk_forward,'Could not re-execute operation: ',TransitionID)).
1296 re_execute_transition_if_necessary(_,_,_).
1297
1298 re_execute_transition(FromID,TransitionID,ToID) :-
1299 transition(FromID,ActionTerm,TransitionID,ToID),
1300 %%print(trans(ActionTerm)),nl,
1301 get_operation_name(ActionTerm,OpName),
1302 debug_println(9,re_executing_operation(OpName,FromID,TransitionID,ToID)),
1303 visited_expression(FromID,InState),
1304 specfile:b_trans(InState,OpName,ActionTerm,_NewState,_TransInfo),
1305 debug_println(9,re_executed(OpName)).
1306
1307 % a version of tcltk_perform_action_term which can be given only the String (e.g., for trace checking)
1308 tcltk_perform_action_string(ActionString,ActionAsTerm,NewID) :-
1309 current_state_id(CurID),
1310 ? transition(CurID,ActionAsTerm,_,NewID),
1311 translate_event_with_src_and_target_id(ActionAsTerm,CurID,NewID,ActionString),
1312 tcltk_goto_state(ActionAsTerm,NewID).
1313 % translate_event_with_limit(ActionAsTerm,5000,ActionString). % should use same limit as below; otherwise trace checking will fail; ideally we should check ActionString is prefix
1314 %translate_event(ActionAsTerm,ActionString).
1315
1316 % perform the Action with term ActionAsTerm leading to new state NewID
1317 tcltk_perform_action_term(ActionAsTerm,NewID) :- %print(tcltk_perform_action_term(Action,ActionAsTerm,NewID)),nl,
1318 (var(ActionAsTerm)
1319 -> add_internal_error('Illegal call: ',tcltk_perform_action_term(ActionAsTerm,NewID)) ; true),
1320 tcltk_goto_state(ActionAsTerm,NewID).
1321
1322 /* allows one to execute an action in term form, from the current state: */
1323 %tcltk_perform_action(T,Cur) :- print_message(perf(T,Cur)),fail.
1324
1325 tcltk_perform_action(ActionAsTerm,NewID) :-
1326 current_state_id(CurID),
1327 tcltk_perform_action(CurID,ActionAsTerm,NewID).
1328 tcltk_perform_action(CurID,ActionAsTerm,NewID) :-
1329 tcltk_perform_action(CurID,ActionAsTerm,NewID,_).
1330 tcltk_perform_action(CurID,ActionAsTerm,TransitionID,NewStateID) :-
1331 transition(CurID,ActionAsTerm,TransitionID,NewStateID),
1332 tcltk_goto_state(ActionAsTerm,NewStateID).
1333
1334 tcltk_no_constants_or_no_inititalisation_found :-
1335 current_state_id(CurID),
1336 (CurID=root ; is_concrete_constants_state_id(CurID)),
1337 \+ candidate_setup_constants_or_init(CurID,_), % no additional unexplored candidates
1338 current_options([]).
1339
1340
1341
1342 /* ------------ */
1343 /* tcltk_open/1 */
1344 /* ------------ */
1345
1346
1347 %prolog_check_load_errors :-
1348 % (tcltk_find_untyped_consts(ErrRes)
1349 % -> add_error(prolog_open,'These constants were not given a proper type:', ErrRes)
1350 % ; true),
1351 % (tcltk_find_untyped_vars(ErrRes)
1352 % -> add_error(prolog_open,'These variables were not given a proper type:', ErrRes)
1353 % ; true).
1354
1355 tcltk_open_b_file_for_minor_mode(File,Minor) :- tcltk_open_b_file(File),
1356 set_animation_minor_mode(Minor).
1357
1358 tcltk_open_b_file(File) :-
1359 tcltk_clear_machine,
1360 set_animation_mode(b),
1361 print_message(loading_b_file(File)),flush_output,
1362 set_currently_opening_file(File),
1363 % to do: b_load_machine_probfile
1364 (b_load_aux(File)
1365 -> print_message(loaded),
1366 set_currently_opened_b_file(File)
1367 ; tcltk_set_failed_to_open_file(File),
1368 fail
1369 ).
1370
1371 tcltk_set_failed_to_open_file(File) :-
1372 set_failed_to_open_file(File),
1373 copy_current_errors_to_state(root,loading_context(File)).
1374
1375 :- use_module(probsrc(bmachine), [b_load_machine_from_file/1,b_load_machine_probfile/1]).
1376 :- use_module(tools,[get_filename_extension/2]).
1377 b_load_aux(File) :- get_filename_extension(File,'prob'),!,
1378 b_load_machine_probfile(File).
1379 b_load_aux(File) :-
1380 b_load_machine_from_file(File).
1381
1382 :- use_module(xtl_interface,[open_xtl_file/1]).
1383 tcltk_open_xtl_file(File) :- % TODO: redundant wrt load_xtl_spec_from_prolog_file
1384 tcltk_clear_machine,
1385 set_animation_mode(xtl),
1386 set_currently_opening_file(File),
1387 (open_xtl_file(File)
1388 -> set_currently_opened_file(File)
1389 ; tcltk_set_failed_to_open_file(File), fail).
1390
1391
1392 tcltk_open_cspm_file(File) :-
1393 tcltk_clear_machine,
1394 set_animation_mode(cspm),
1395 set_currently_opening_file(File),
1396 (xtl_interface:open_cspm_file(File)
1397 -> set_currently_opened_file(File)
1398 ; tcltk_set_failed_to_open_file(File), fail).
1399
1400 :- use_module(xtl_interface).
1401 %tcltk_open_promela_file(File) :-
1402 % tcltk_clear_machine,
1403 % set_animation_mode(promela), set_currently_opening_file(File),
1404 % xtl_interface:open_promela_file(File), set_currently_opened_file(File).
1405
1406 % disabled because Java parser seems broken
1407 %tcltk_open_smv_file(File) :-
1408 % tcltk_clear_machine,
1409 % set_animation_mode(smv), set_currently_opening_file(File),
1410 % xtl_interface:open_smv_file(File), set_currently_opened_file(File).
1411
1412 :- use_module(specfile,[type_check_csp_and_b/0]).
1413 :- use_module(library(file_systems),[file_exists/1,delete_file/1]).
1414
1415 tcltk_add_csp_file(File) :-
1416 \+ file_exists(File),!,
1417 add_error(csp_guide,'CSP guide file does not exist:',File).
1418 tcltk_add_csp_file(File) :-
1419 unset_animation_minor_modes(L), % we could be in z or tla or eventb mode
1420 set_animation_mode(csp_and_b),
1421 reset_animation_minor_modes(L),
1422 xtl_interface:open_cspm_file(File),
1423 notify_change_of_animation_mode,
1424 debug_format(19,'Added csp-guide file ~w~n',[File]),
1425 type_check_csp_and_b.
1426
1427 notify_change_of_animation_mode :-
1428 announce_event(change_of_animation_mode).
1429 % clear_applicable_flag. % no done via event handling
1430
1431
1432 tcltk_open_z_file(File) :-
1433 tcltk_clear_machine,
1434 tcltk_open_z_file2(File).
1435 tcltk_open_z_file2(File) :-
1436 set_currently_opening_file(File),
1437 ? open_proz_file(File,BMachine),
1438 set_animation_mode(b), set_animation_minor_mode(z),
1439 b_set_typed_machine(BMachine,File),
1440 !,
1441 set_currently_opened_b_file(File).
1442 tcltk_open_z_file2(File) :- tcltk_set_failed_to_open_file(File),fail.
1443
1444 :- use_module(parsercall,[call_fuzz_parser/2]).
1445 tcltk_open_z_tex_file(TexFile) :-
1446 tcltk_clear_machine,
1447 ? call_fuzz_parser(TexFile,FuzzFile),
1448 tcltk_open_z_file2(FuzzFile).
1449
1450
1451 :- use_module(eclipse_interface,[load_eventb_file/1]).
1452 tcltk_load_packaged_eventb_file(File) :-
1453 tcltk_clear_machine,
1454 load_eventb_file(File).
1455
1456 :- use_module(eclipse_interface,[load_cnf_file/2]).
1457 tcltk_load_cnf_file(File) :-
1458 tcltk_clear_machine,
1459 load_cnf_file(File,[]).
1460
1461 :- use_module(parsercall,[call_alloy2pl_parser/2]).
1462 :- use_module(probsrc('alloy2b/alloy2b')).
1463 tcltk_open_alloy_file(AlloyFile) :-
1464 tcltk_clear_machine,
1465 start_ms_timer(T1),
1466 formatsilent('Parsing Alloy file: ~w~n',[AlloyFile]),
1467 set_currently_opening_file(AlloyFile),
1468 call_alloy2pl_parser(AlloyFile,PrologFile),
1469 (silent_mode(off) -> stop_ms_walltimer_with_msg(T1,'parsing and type checking: ') ; true),
1470 %printsilent(generated_prolog_ast(PrologFile)),nls,
1471 start_ms_timer(T2),
1472 ( load_alloy_ast_prolog_file(PrologFile)
1473 -> true
1474 ; delete_file(PrologFile), % delete parsed Prolog file if model couldn't be loaded
1475 fail % since it's potentially empty due to the failure
1476 ),
1477 !,
1478 (silent_mode(off) -> stop_ms_walltimer_with_msg(T2,'loading and translation to B: ') ; true),
1479 set_currently_opened_b_file(AlloyFile).
1480 tcltk_open_alloy_file(AlloyFile) :- tcltk_set_failed_to_open_file(AlloyFile),fail.
1481
1482
1483 tcltk_open_alloy_prolog_ast_file(AlloyPrologFile) :-
1484 tcltk_clear_machine,
1485 start_ms_timer(T2),
1486 load_alloy_ast_prolog_file(AlloyPrologFile),
1487 !,
1488 (silent_mode(off) -> stop_ms_walltimer_with_msg(T2,'loading B translation of Alloy: ') ; true),
1489 set_currently_opened_b_file(AlloyPrologFile).
1490
1491 %% tcltk_load_alloy_cmd_in_current_translation(+CmdName).
1492 tcltk_load_alloy_cmd_in_current_translation(CmdName) :-
1493 alloy2b:load_command_in_current_translation(CmdName).
1494
1495 %% tcltk_get_alloy_cmd_names(-CmdNames).
1496 tcltk_get_alloy_cmd_names(CmdNames) :-
1497 alloy2b:get_command_names(CmdNames).
1498
1499 %% tcltk_verify_alloy_cmd(+CmdName, +SolverName, -CmdIsValid, -IsCheckCmd).
1500 tcltk_verify_alloy_cmd(CmdName, SolverName, CmdIsValid, IsCheckCmd) :-
1501 verify_alloy_command(CmdName, SolverName, CmdIsValid, IsCheckCmd, Res),
1502 ( Res = solution(Bindings)
1503 -> bindings_to_state(Bindings, State),
1504 tcltk_add_cbc_state(State, CmdName)
1505 ; true
1506 ).
1507
1508 bindings_to_state([], []).
1509 bindings_to_state([Binding|T], [Bind|NT]) :-
1510 (Binding = binding(Id,Val,_); Binding = bind(Id,Val)),
1511 Bind = bind(Id,Val),
1512 bindings_to_state(T, NT).
1513
1514 /* --------------------------------------------------------------------- */
1515
1516 tcltk_exists_an_open_node :-
1517 not_all_transitions_added(_) ; not_interesting(_).
1518 tcltk_goto_an_open_node :-
1519 (not_all_transitions_added(ID) ; not_interesting(ID)),!,
1520 tcltk_goto_state(find_open_node,ID).
1521 tcltk_goto_max_reached_node :-
1522 (max_reached_for_node(ID) ; time_out_for_node(ID)),!,
1523 tcltk_execute_trace_to_node(ID).
1524 tcltk_goto_timeout_node :-
1525 time_out_for_node(ID),!,
1526 tcltk_execute_trace_to_node(ID).
1527 % tcltk_goto_state(find_max_reached_node,ID).
1528
1529 tcltk_goto_an_invariant_violation :-
1530 invariant_violated(ID),!,
1531 tcltk_goto_state(find_inv_violation,ID).
1532
1533
1534 tcltk_goto_node_with_id(ToID) :-
1535 current_state_id(ToID),!.
1536 tcltk_goto_node_with_id(ID) :-
1537 visited_expression_id(ID),
1538 tcltk_execute_trace_to_node(ID).
1539
1540 tcltk_try_goto_node_with_id(ID) :-
1541 (tcltk_goto_node_with_id(ID) -> true
1542 ; add_internal_error('Call failed:',tcltk_goto_node_with_id(ID))).
1543
1544 /* --------------------------------------------------------------------- */
1545
1546 % TO DO: clean up and move into model_checker module
1547
1548 ?tcltk_state_space_only_has_root_node :- transition(root,_,ID),
1549 \+ not_all_transitions_added(ID),!,fail.
1550 tcltk_state_space_only_has_root_node.
1551
1552 tcltk_search_among_existing_nodes(TclTkRes,FindDeadlocks,FindInvViolations,
1553 FindGoal,FindAssViolations,FindStateErrors) :-
1554 search_among_existing_nodes(Res,FindDeadlocks,FindInvViolations,
1555 FindGoal,FindAssViolations,FindStateErrors),
1556 translate_error_for_tclk(Res,TclTkRes).
1557
1558 % if tcltk_state_space_only_has_root_node is true: then we should call search_among_existing_nodes before doing open_search to ensure that we uncover state_errors in the root node
1559 % TODO: process mc_continue_after_error preference
1560 search_among_existing_nodes(invariant_violation,_FindDeadlocks,FindInvViolations,
1561 _FindGoal,_FindAssViolations,_FindStateErrors) :-
1562 (get_state_space_stats(_,_,PrN), PrN>100
1563 -> print_message('Search Among Processed Nodes'), print_message(number_of_nodes(PrN)) ; true),
1564 FindInvViolations=1,
1565 (invariant_violated(ResID) -> true
1566 ; find_invariant_violation_among_not_checked_nodes(ResID)),
1567 tcltk_execute_trace_to_node(ResID).
1568 search_among_existing_nodes(Error,_FindDeadlocks,FindInvViolations,
1569 _FindGoal,_FindAssViolations,_FindStateErrors) :-
1570 FindInvViolations=1,
1571 find_xtl_csp_invariant_violation_among_all_existing_nodes(ResID,Error), % could be xtl_error
1572 tcltk_execute_trace_to_node(ResID).
1573 search_among_existing_nodes(DEADLOCK,FindDeadlocks,_,_,_,_) :-
1574 FindDeadlocks=1,
1575 ? visited_expression_id(ResID),
1576 transitions_computed_for_node(ResID),
1577 is_deadlocked(ResID),
1578 (time_out_for_node(ResID)
1579 -> DEADLOCK = possible_deadlock_timeout
1580 ; get_preference(store_only_one_incoming_transition,true) -> DEADLOCK = possible_deadlock
1581 ; DEADLOCK = deadlock),
1582 print_message(deadlock_among_existing_nodes(ResID)),
1583 tcltk_execute_trace_to_node(ResID).
1584 search_among_existing_nodes(goal_found,_,_,FindGoal,_,_) :-
1585 FindGoal=1,
1586 %visited_expression(ResID,_CurState),
1587 %\+(not_all_transitions_added(ResID)), % if commented out: will also look at open nodes
1588 node_satisfies_goal(ResID),
1589 tcltk_execute_trace_to_node(ResID).
1590 search_among_existing_nodes(assertion_violation,_,_,_,FindAssViolations,_) :-
1591 FindAssViolations=1,
1592 b_machine_has_assertions,
1593 ? visited_expression(ResID,CurState),
1594 transitions_computed_for_node(ResID),
1595 state_violates_assertions(ResID,CurState),
1596 tcltk_execute_trace_to_node(ResID).
1597 search_among_existing_nodes(ERR,_,_,_,_,FindStateErrors) :- FindStateErrors=1,
1598 ? state_space:state_error(ResID,_,Error), Error \== invariant_violated,
1599 (Error = abort_error(ERR,_,_,_) -> true ; ERR = state_error(Error)),
1600 tcltk_execute_trace_to_node(ResID).
1601 search_among_existing_nodes(all,_,_,_,_,_).
1602
1603
1604 compute_all_transitions_if_necessary :-
1605 current_state_id(CurID),
1606 compute_all_transitions_if_necessary(CurID,false).
1607 :- public compute_all_transitions_if_necessary/1.
1608 compute_all_transitions_if_necessary(CurID) :-
1609 compute_all_transitions_if_necessary(CurID,false).
1610
1611 compute_all_transitions_if_necessary(CurID,CheckInvariant) :-
1612 (retract_open_node(CurID) % will assert not_invariant_checked
1613 -> set_context_state(CurID),
1614 % first check invariant, relevant if we want to use specialized_inv proof information
1615 visited_expression(CurID,State),
1616 % TO DO: this does not expand concrete_constants: the expansion may be done twice below:
1617 % once for compute_invariant (corresponds_to_b...) and once for compute_all_transitions (prepare_state_for_specfile_trans)
1618 prepare_state_for_specfile_trans(State,CurID,PreparedState),
1619 (CheckInvariant==true
1620 -> compute_invariant_if_necessary_and_requested(CurID,PreparedState) ; true),
1621 compute_all_transitions(CurID,PreparedState),
1622 clear_context_state
1623 ; true).
1624 %compute_all_transitions_if_necessary(CurID,CurState) :-
1625 % ((not_all_transitions_added(CurID);not_interesting(CurID))
1626 % -> compute_all_transitions(CurID,CurState) ; true).
1627
1628
1629 compute_invariant_if_necessary_and_requested(ID,State) :-
1630 enter_new_error_scope(ErrScID,compute_invariant_if_necessary_and_requested), % here we setup a new error scope; see comment for force_check_invariantKO below
1631 compute_invariant_if_necessary(ID,State),
1632 exit_error_scope(ErrScID,_ErrOcc,compute_invariant_if_necessary_and_requested). % should we do something with error occured result ?
1633
1634 compute_invariant_if_necessary(ID,State) :-
1635 animation_mode(MODE),compute_invariant_if_necessary(ID,State,MODE).
1636 compute_invariant_if_necessary(ID,State,MODE) :-
1637 ( check_invariantKO(MODE,ID,State) -> true ; true).
1638
1639 check_invariantKO(ID,State) :-
1640 animation_mode(MODE),check_invariantKO(MODE,ID,State).
1641 check_invariantKO(b,ID,State) :-
1642 check_invariantKO2(ID,State).
1643 check_invariantKO(csp_and_b,ID,State) :-
1644 check_invariantKO2(ID,State).
1645 % for XTL we do not use not_invariant_checked/1 facts; one should call xtl_invariant_violated/1
1646
1647 % check invariant for B state
1648 check_invariantKO2(ID,_) :- invariant_violated(ID),!.
1649 check_invariantKO2(ID,CurState) :-
1650 ? set_invariant_checked(ID), % only succeeds if we haven't checked invariant for ID yet
1651 % print(check_inv(ID)),nl,
1652 state_corresponds_to_initialised_b_machine(CurState),
1653 ( preferences:preference(do_invariant_checking,false) -> assertz(not_invariant_checked(ID))
1654 ; force_check_invariantKO(ID,CurState)).
1655
1656
1657 force_check_invariantKO(ID,CurBState) :-
1658 % Note: this checks the invariant without setting up a new error scope
1659 % (Reason: in the model checker it would be relatively expensive to set up an error scope for each state
1660 % the model checker stops anyway when the first error is found and then exits its error scope)
1661 catch_clpfd_overflow_call_for_state(ID, 'checking invariants',
1662 b_state_violates_invariant(ID,CurBState),true) ->
1663 %(b_state_violates_invariant(ID,CurBState) ->
1664 set_invariant_violated(ID).
1665 % TO DO ?: call state_satisfies_negation_of_invariant if double_evaluation_when_analysing is true ?
1666
1667 % try and find an invariant violation among those nodes that have not yet been checked
1668 find_invariant_violation_among_not_checked_nodes(ID) :-
1669 retract(not_invariant_checked(ID)), %print(checking_invariant(ID)),nl,
1670 visited_expression(ID,State),
1671 state_corresponds_to_initialised_b_machine(State),
1672 prepare_state_for_specfile_trans(State,ID,CurBState),
1673 force_check_invariantKO(ID,CurBState).
1674
1675 find_xtl_csp_invariant_violation_among_all_existing_nodes(ID,Error) :-
1676 animation_mode(MODE),
1677 (MODE=xtl ; MODE=csp), % invariant violations not stored, hence we need to re-check every node
1678 ? visited_expression(ID,State),
1679 find_invariant_error(MODE,ID,State,Error). % csp_error or xtl_error
1680
1681 :- use_module(probporsrc(ample_sets),[compute_ample_set2/3]).
1682 % computing ample sets (model_checker.pl)
1683 compute_ample_set(CurID,CurState,POROptions) :-
1684 catch_clpfd_overflow_call_for_state(CurID,'computing ample sets for POR',
1685 compute_ample_set2(CurID,CurState,POROptions),clear_context_state).
1686
1687
1688 %compute_all_transitions(CurID,CurState) :- get_preference(use_clpfd_solver,false),!,
1689 % compute_all_transitions2(CurID,CurState). % in principle this overflow cannot/should not happen with CLPFD FALSE
1690 % but no performance benefit can be measured by removing the catch
1691 compute_all_transitions(CurID,CurState) :-
1692 catch_clpfd_overflow_call_for_state(CurID,'computing all enabled transitions',
1693 compute_all_transitions2(CurID,CurState),clear_context_state).
1694
1695
1696 %catch_clpfd_overflow_call_for_state(_CurID, Call,_ExtraCleanUpCode) :-
1697 % preferences:preference(use_clpfd_solver,false),!, % Overflow should not occur
1698 % call(Call).
1699 :- use_module(clpfd_interface,[catch_clpfd_overflow_call2/2]).
1700 catch_clpfd_overflow_call_for_state(CurID, Context, Call,ExtraCleanUpCode) :-
1701 catch_clpfd_overflow_call2(Call,
1702 ( store_state_error(CurID,clpfd_overflow_error(Context),_),
1703 call(ExtraCleanUpCode)) ).
1704
1705
1706
1707
1708 :- use_module(probsrc(succeed_max),[reset_max_reached/0,max_reached/0, max_reached/1]).
1709 compute_all_transitions2(CurID,CurState) :- /* compute all outgoing transitions for a given node */
1710 % set_context_state(CurID), % error_context is set for each operation below anyway.
1711 reset_max_reached,
1712 prepare_state_for_specfile_trans(CurState,CurID,PreparedCurState), % will perform unpacking of constants just once, for example
1713 ((time_out_preference_disabled % e.g., when using probcli -disable_time_out
1714 ; use_no_timeout(CurID))
1715 -> add_transitions_fail_loop(CurID,PreparedCurState)
1716 ; preferences:preference(time_out,CurTO),
1717 add_transitions__with_timeout_fail_loop(CurID,PreparedCurState,CurTO)
1718 ),
1719 add_partial_transitions(CurID,PreparedCurState), % also copies unsat component infos
1720 (max_reached -> assert_max_reached_for_node(CurID),MaxReached=true ; MaxReached=false),
1721 % TO DO: use max_reached(OpID)
1722 (CurID==root -> save_constants(MaxReached) ; add_new_transitions_to_cache(CurID))
1723 . %,clear_context_state.
1724
1725 :- use_module(error_manager,[get_virtual_time_out_from_exception/2]). % used by time_out_with_enum_warning_for_findall
1726 % loop to compute successor states without a time_out
1727 add_transitions_fail_loop(CurID,CurState) :-
1728 catch(
1729 add_transitions_fail_loop2(CurID,CurState,TimeOutRes),
1730 Exc,
1731 get_virtual_time_out_from_exception(Exc,TimeOutRes)),
1732 (nonvar(TimeOutRes),
1733 (TimeOutRes=operation_time_out(Op,TimeOutRes2)
1734 -> assert_time_out_for_node(CurID,Op,TimeOutRes2)
1735 ; assert_time_out_for_node(CurID,'unspecified_operation',TimeOutRes))
1736 ; true).
1737
1738 add_transitions_fail_loop2(CurID,CurState,_) :-
1739 ? possible_trans_name_for_successors(CurState,ActionName),
1740 % we could check pge info here (e.g., store one Predecessor ID and look if ActionName can be enabled after)
1741 set_error_context(operation(ActionName,CurID)),
1742 ? add_transition(CurID,CurState,ActionName,_NewId), % TO DO: transmit animation_mode value?
1743 fail.
1744 add_transitions_fail_loop2(_,_,OpTimeOutRes) :-
1745 (enumeration_warning_occured_in_error_scope
1746 -> (virtual_time_out_occured_in_error_scope(TimeOutRes)
1747 -> % i.e., critical enumeration warning occurred
1748 (get_error_context(operation(ActionName,_))
1749 -> OpTimeOutRes = operation_time_out(ActionName,TimeOutRes)
1750 ; OpTimeOutRes = operation_time_out('unspecified_operation',TimeOutRes))
1751 ; true),
1752 clear_enumeration_warnings
1753 ; true % no warnings: sunshine case
1754 ),
1755 clear_error_context.
1756
1757 possible_trans_name_for_successors(CurState,ActionName) :-
1758 ? specfile_possible_trans_name_for_successors(CurState,ActionName),
1759 (preference(store_only_one_incoming_transition,true), % SAFETY_MODEL_CHECK
1760 nonvar(ActionName),
1761 b_or_z_mode,
1762 b_operation_cannot_modify_state(ActionName) % we have a skip operation
1763 -> operation_not_yet_covered(ActionName)
1764 % if operation covered: all we could is create a self-loop, which would not be added to the state space anyway
1765 ; true).
1766
1767
1768 :- use_module(library(timeout),[time_out/3]).
1769 my_timeout_test(1000000) :- write('.'), !, my_timeout_test(0).
1770 my_timeout_test(X) :- X1 is X+1, my_timeout_test(X1).
1771 :- public my_timeout_test/0.
1772 my_timeout_test :- time_out(my_timeout_test(0),500,TO), nl,
1773 print(time_out_result(TO)),nl, TO==time_out.
1774 :- assert_must_succeed(tcltk_interface:my_timeout_test).
1775
1776 add_transitions__with_timeout_fail_loop(CurID,CurState,CurTO) :-
1777 enter_new_error_scope(Level,add_transitions__with_timeout_fail_loop),
1778 call_cleanup(add_transitions__with_timeout_fail_loop2(Level,CurID,CurState,CurTO),
1779 exit_error_scope(Level,_,add_transitions__with_timeout_fail_loop)).
1780
1781 % old profiler
1782 :- use_module(runtime_profiler,[profile_failure_driven_loop/2]).
1783
1784 % the loop to compute all successors of state CurID with a time-out
1785 add_transitions__with_timeout_fail_loop2(Level,CurID,CurState,CurTO) :- % statistics(runtime,_),
1786 % TO DO: prepare computing the state: expanding const and vars, unpacking, ...
1787 ? possible_trans_name_for_successors(CurState,ActionName),
1788 ? profile_failure_driven_loop(ActionName,CurID),
1789 % Note: we enumerate possible transition names so that we can catch the time-out per name !
1790 % statistics(runtime,[T1,DeltaT]), print(delta_time(ActionName,DeltaT)),nl, %%
1791 % first enumerate possible Operations/... to obtain timeout per operation/...
1792 % TO DO: divide CurTO by number of transitions ???
1793 % We could also decide to have one time-out per state, only if that one is triggered move to
1794 % finer-grained timeouts
1795 % For probcli ../prob_examples/public_examples/B/Benchmarks/Cruise_finite1.mch --model-check, there are 35360 calls to timeout/3 (one per state the model checker reached and per transition group), with -disable-timeout none
1796 % In SICS 4.3.5 the runtime increased from 1.480 to 2.270 seconds = 0.022 ms per timeout call
1797 % In SICS 4.4.1 the runtime increased from 1.494 to 3.033 seconds. = 0.044 ms per timeout call.
1798 %% statistics(runtime,[T1,_]), print(try(ActionName,T1)),nl,%%
1799 set_error_context(operation(ActionName,CurID)),
1800 (nonvar(ActionName),translate_operation_name(ActionName,A2),
1801 get_specific_time_out_for_operation(A2,RealTimeOut) -> true ; RealTimeOut = CurTO),
1802 ? time_out_with_enum_warning_for_findall_in_current_error_scope(Level,
1803 (add_transition(CurID,CurState,ActionName,_NewId),fail), % fail inside meta-call;
1804 % so that time_out is for entire add_transition loop; not just for each single solution
1805 RealTimeOut,TimeOutRes),
1806 %% statistics(runtime,[T2,_]), TDiff is T2-T1, print(added_transition(CurID,ActionName,TDiff,TimeOutRes)),nl, %%
1807 %% add_transition(CurID,CurState,ActionName,_NewId) ,
1808 ((TimeOutRes==time_out ;
1809 nonvar(TimeOutRes),TimeOutRes=virtual_time_out(_), \+ max_reached(ActionName))
1810 % virtual time outs not relevant if we have already stopped earlier anyway;
1811 % TO DO: does not seem to work for INITIALISATION
1812 -> (TimeOutRes=virtual_time_out(_) -> true
1813 ; print_message('TIME OUT: '),print_message(CurID),
1814 print_message(RealTimeOut),print_message(ActionName)
1815 ),
1816 (var(ActionName)
1817 -> assert_time_out_for_node(CurID,'unspecified_operation',TimeOutRes)
1818 ; assert_time_out_for_node(CurID,ActionName,TimeOutRes) % TO DO: assert info per ActionSkeleton ?
1819 )
1820 ; true
1821 ),fail.
1822 add_transitions__with_timeout_fail_loop2(_,_,_,_) :- clear_error_context.
1823 % statistics(runtime,[_,DeltaT]), print(delta_time(end,DeltaT)),nl.
1824
1825 % compute and add transition to next states
1826 add_transition(CurID,CurState,ActionName,NewId) :-
1827 /* ActionName maybe pre-instantiated */
1828 extract_infos_from_prepared_state(CurState,PrecomputedInfos),
1829 ? specfile_trans(CurState,ActionName,Act,NewExpression,TransInfo,Residue),
1830 %% print_bt_message(specfile_trans(CurState,ActionName,Act,NewExpression,TransInfo,Residue)), %%
1831 add_trans_id_with_infos(CurID,PrecomputedInfos,Act,NewExpression,Residue,NewId,TransInfo,_).
1832
1833 :- use_module(kernel_tools,[add_call_residue_error/3]).
1834 % after being computed, add a new transition in the state space; adding the destination state if required
1835 add_trans_id_with_infos(CurID,PrecomputedInfos,Act,NewExpression,Residue,NewID,TransInfo,TransId) :-
1836 (Residue=[] -> true
1837 ; ajoin(['Prolog residue while computing transition ',Act,' in state ',CurID,':'],Msg),
1838 add_call_residue_error(add_trans_id,Msg,Residue)
1839 ),
1840 add_new_transition_transid_with_infos(CurID,PrecomputedInfos,Act,NewID,NewExpression,TransInfo,TransId).
1841
1842
1843
1844 add_trans_id(CurID,Act,NewExpression,NewID,TransId) :-
1845 add_trans_id_with_infos(CurID,[],Act,NewExpression,[],NewID,[],TransId).
1846
1847 add_trans_id_infos(CurID,Act,NewExpression,NewID,TransId,TransInfos) :-
1848 add_trans_id_with_infos(CurID,[],Act,NewExpression,[],NewID,TransInfos,TransId).
1849
1850 add_partial_transitions(root,CurState) :-
1851 % for the moment root is the only state where partial transitions are computed
1852 % note: some regular setup_constants transitions can cover partial_properties and are also partial transitions
1853 % (but which find values for all constants)
1854 ? \+ any_transition(root,_,_),
1855 % No transition was found, we try and extract deterministic values found for constants
1856 % and will add PARTIAL_SETUP_CONSTANTS if all constants valued or if preference allows it
1857 partial_trans(CurState,Act,NewExpression,Residue),
1858 add_trans_id_with_infos(root,[],Act,NewExpression,Residue,_NewID,[],_),fail.
1859 add_partial_transitions(_CurID,_).
1860
1861 /* --------------------------------------------------------------------- */
1862
1863 /* A bit like AO* algorithm: expands open nodes (i.e., states whose transitions
1864 have not yet been computed */
1865
1866 :- use_module(model_checker).
1867
1868 tcltk_model_check(Nr,TclTkRes,FindDeadlocks,FindInvViolations,FindGoal,FindAssViolations,
1869 FindStateErrors,StopFullCoverage,PartialOrderReduction,TIMELIMIT,TotalTime) :-
1870 statistics(walltime,[CurTime,_]), /* get current time in ms */
1871 LimitTime is CurTime+TIMELIMIT,
1872 %debug_println(10,start_tcltk_model_check(Nr,TIMELIMIT)),
1873 InspectExistingNodes = 0,
1874 (do_model_check(Nr,_A,LimitTime,Res,FindDeadlocks,FindInvViolations,FindGoal,
1875 FindAssViolations,FindStateErrors,StopFullCoverage,
1876 PartialOrderReduction,InspectExistingNodes)
1877 -> translate_error_for_tclk(Res,TclTkRes)
1878 ; add_internal_error('Call failed: ',do_model_check(Nr,_A,LimitTime,Res,FindDeadlocks,FindInvViolations,FindGoal,
1879 FindAssViolations,FindStateErrors,StopFullCoverage,
1880 PartialOrderReduction,InspectExistingNodes)),
1881 TclTkRes=error),
1882 statistics(walltime,[CurTime2,_]),
1883 TotalTime is CurTime2-CurTime,
1884 debug_println(10,tcltk_model_check(Nr,TotalTime,Res)).
1885
1886 translate_error_for_tclk([timeout,Nr],Res) :- !, Res=[timeout,Nr].
1887 translate_error_for_tclk(state_error(S),String) :- !, translate_state_err_for_tcltk(S,String).
1888 translate_error_for_tclk(S,R) :- atomic(S),!,R=S.
1889 translate_error_for_tclk(S,R) :- nonvar(S), add_error(translate_error_for_tclk,'Unknown Model Check result: ',S), R=unknown.
1890
1891 translate_state_err_for_tcltk(abort_error(TYPE,_,_,_),ERR) :- !, ERR = TYPE.
1892 translate_state_err_for_tcltk(eventerror(Event,Error,_),ERR) :- !,
1893 functor(Error,F,_),
1894 ajoin(['event_error:',Event,':',F],ERR).
1895 translate_state_err_for_tcltk(Error,ERR) :-
1896 functor(Error, StateError, _), atom_concat('state_error:',StateError,ERR).
1897
1898
1899
1900 do_model_check(_Nr,NodesAnalysed,_LimitTime,Res,FindDeadlocks,FindInvViolations,FindGoal,
1901 FindAssViolations,FindStateErrors,_StopFullCoverage,
1902 _PartialOrderReduction,ForceInspectExistingNodes) :-
1903 (tcltk_state_space_only_has_root_node -> true % Then also look at the root node
1904 ; ForceInspectExistingNodes == 1),
1905 ? search_among_existing_nodes(Res,FindDeadlocks,FindInvViolations,FindGoal,
1906 FindAssViolations,FindStateErrors),
1907 Res \=all, NodesAnalysed=0.
1908 do_model_check(LimitNr,NodesAnalysed,LimitTime,Res,FindDeadlocks,FindInvViolations,FindGoal,
1909 FindAssViolations,FindStateErrors,StopFullCoverage,PartialOrderReduction,_) :-
1910 update_ass(FindAssViolations,FindAssViolations2),
1911 open_search(LimitNr,NodesAnalysed,LimitTime,Res,FindDeadlocks,FindInvViolations,FindGoal,
1912 FindAssViolations2,FindStateErrors,StopFullCoverage,PartialOrderReduction).
1913
1914 update_ass(1,FindAssViol) :- \+ b_machine_has_assertions,!, % no need to check assertions
1915 FindAssViol=0.
1916 update_ass(X,X).
1917
1918 /* --------------------------------------------------- */
1919
1920 /* constraint-based checking of refinements */
1921 :- use_module(symbolic_model_checker(cbc_refinement_checks), [cbc_refinement_check/2]).
1922 tcltk_cbc_refinement_check(list(List),ErrorOccured) :-
1923 ? cbc_refinement_check(List,ErrorOccured).
1924
1925 /* constraint-based/model search for invariant violations */
1926
1927 :- dynamic cbc_inv_error_found/2.
1928
1929 tcltk_constraint_based_check(L) :- tcltk_constraint_based_check(L,_).
1930 tcltk_constraint_based_check(list(List),ErrorsOrTimeoutWereFound) :-
1931 retractall(cbc_inv_error_found(_,_)),
1932 findall(Res, (tcltk_constraint_based_check_with_timeout(OpName,ErrorDesc),
1933 (ErrorDesc=ok -> true ; assertz(cbc_inv_error_found(OpName,ErrorDesc))),
1934 string_concatenate(' == ',ErrorDesc,Res1),
1935 string_concatenate(OpName,Res1,Res)), List),
1936 %%print(list(List)),nl, %%
1937 ? (cbc_inv_error_found(_,_) ->
1938 ? (cbc_inv_error_found(_,X),X\=time_out
1939 -> ErrorsOrTimeoutWereFound=true ; ErrorsOrTimeoutWereFound=time_out
1940 )
1941 ; ErrorsOrTimeoutWereFound = false).
1942
1943 % can also be called with uninstantiated OpName
1944 tcltk_constraint_based_check_with_timeout(OpName,ErrorDesc) :-
1945 preferences:get_computed_preference(debug_time_out,DebugTimeOut),
1946 ? valid_operation_or_init(OpName,IOpName),
1947 (time_out_with_enum_warning_one_solution(tcltk_constraint_based_check_op(IOpName,ErrorDesc),DebugTimeOut,TimeOutRes)
1948 -> (is_time_out_result(TimeOutRes)
1949 -> print_message('TIME OUT: '), print_message(OpName), print_message(DebugTimeOut),
1950 ErrorDesc = timeout
1951 ; true
1952 )).
1953 valid_operation_or_init(OpName,R) :- OpName=='@INITIALISATION',!,R='$initialise_machine'.
1954 ?valid_operation_or_init(OpName,OpName) :- b_get_machine_operation(OpName,_,_,_).
1955 valid_operation_or_init('INITIALISATION','$initialise_machine'). % used e.g. in test 1821: -cbc INITIALISATION
1956
1957 tcltk_constraint_based_check_op(OpName,ErrorDesc) :-
1958 tcltk_constraint_based_check_op(OpName,invariant,ErrorDesc).
1959
1960 tcltk_constraint_based_check_op(TclOpName,InvOrAssertion,ErrorDesc) :-
1961 adapt_tcl_operation_name(TclOpName,OpName),
1962 tcltk_constraint_based_check_op2(OpName,InvOrAssertion,ErrorDesc).
1963
1964 % code below because names with $ cause problems in Tcl with eval
1965 adapt_tcl_operation_name(X,R) :- var(X),!,R=X.
1966 adapt_tcl_operation_name('@PROPERTIES','$setup_constants') :- !.
1967 adapt_tcl_operation_name('@INITIALISATION','$initialise_machine') :- !.
1968 adapt_tcl_operation_name(X,X).
1969
1970 % a version that allows either invariant or assertions check after an Operation OpName
1971 tcltk_constraint_based_check_op2(OpName,InvOrAssertion,ErrorDesc) :-
1972 call_cbc_command(state_model_check(OpName,InvOrAssertion,State,Operation,NewState)),!,
1973 tcltk_add_cbc_state(State,'$JUMP'(constraint_based_check),PriorID), % will also set history
1974 translate_event(Operation,Action),
1975 tcltk_add_new_transition_transid(PriorID,Operation,NewID,NewState,[],TransId2),
1976 set_current_state_id(NewID),
1977 add_to_op_trace_ids(TransId2),
1978 add_id_to_history(PriorID),
1979 ajoin([InvOrAssertion,'_violated_after(',Action,')'],ErrorDesc).
1980 tcltk_constraint_based_check_op2(_,_,'ok').
1981
1982
1983 % try to find constants, parameters that make a given trace feasible
1984 tcltk_cbc_find_trace(TraceToBeFound,Res) :-
1985 tcltk_cbc_find_trace(TraceToBeFound,'',first_solution,Res).
1986
1987 %:- public tcltk_cbc_find_invariant_violation/2.
1988 %tcltk_cbc_find_invariant_violation(TraceToBeFound,Res) :-
1989 % tcltk_cbc_find_trace(TraceToBeFound,'#not_invariant',first_solution,Res).
1990 % could also call tcltk_constraint_based_check_op('$initialise_machine',invariant,Res)
1991
1992 tcltk_cbc_find_trace(TraceToBeFound,TargetPredString,FindAll,Res) :-
1993 b_parse_optional_machine_predicate(TargetPredString,TargetPred),
1994 formatsilent('Looking for solution for trace ~w~n',[TraceToBeFound]),
1995 split_atom(TraceToBeFound,[',',';',' '],TraceAsList),
1996 (maplist(check_valid_operation,TraceAsList)
1997 -> start_ms_timer(Timer),
1998 tcltk_cbc_find_trace_aux(Timer,TraceAsList,TargetPred,FindAll,Res)
1999 ; Res = error).
2000 tcltk_cbc_find_trace_aux(Timer,TraceAsList,TargetPred,FindAll,Res) :-
2001 preferences:get_computed_preference(debug_time_out,DebugTimeOut),
2002 reset_nr_cbc_sols,
2003 time_out_with_enum_warning_one_solution(
2004 cbc_path_solver:create_testcase_path_nondet(init,TraceAsList,TargetPred,Transitions),DebugTimeOut,TimeOutRes),
2005 stop_ms_timer(Timer),
2006 (is_time_out_result(TimeOutRes)
2007 -> !,
2008 print_message('*** TIME OUT: '), print_message(DebugTimeOut), Res = time_out
2009 ; FindAll = findall -> inc_nr_cbc_sols,
2010 print('% *** FOUND PATH: '), maplist(print_trans,Transitions),nl,
2011 fail % backtrack to find further solutions
2012 ; !,Res = ok,
2013 print('% *** FOUND PATH: '), maplist(print_trans,Transitions),nl,
2014 maplist(extract_trans_id,Transitions,TransIds),
2015 set_trace_by_transition_ids(TransIds)
2016 ).
2017 tcltk_cbc_find_trace_aux(Timer,_TraceToBeFound,_TargetPred,findall,R) :- !, stop_ms_timer(Timer),
2018 R=nr_cbc_sols(Res),
2019 nr_cbc_sols(Res),
2020 print_message('*** ALL SOLUTIONS FOUND ').
2021 tcltk_cbc_find_trace_aux(Timer,_TraceToBeFound,_TargetPred,_FindAll,no_solution_found) :-
2022 stop_ms_timer(Timer),
2023 print_message('*** NO SOLUTION FOUND'),nl.
2024
2025 :- dynamic nr_cbc_sols/1.
2026 nr_cbc_sols(0).
2027 reset_nr_cbc_sols :- retractall(nr_cbc_sols(_)), assertz(nr_cbc_sols(0)).
2028 inc_nr_cbc_sols :-
2029 retract(nr_cbc_sols(N)), N1 is N+1, assertz(nr_cbc_sols(N1)).
2030 extract_trans_id( (TransId,_,_,_), TransId).
2031 print_trans( (_,Event,_,_)) :- translate_event(Event,S), print(S), print(' ').
2032
2033 :- use_module(probsrc(tools_matching), [get_possible_top_level_event_matches_msg/2]).
2034 check_valid_operation(Op) :-
2035 (get_possible_language_specific_top_level_event(Op,_,_) -> true
2036 ; (get_possible_top_level_event_matches_msg(Op,FMsg)
2037 -> ajoin(['Unknown operation/event (did you mean ',FMsg,' ?):'],Msg)
2038 ; Msg='Unknown operation/event:'
2039 ),
2040 add_error(cbc_find_sequence,Msg,Op),
2041 fail
2042 ).
2043
2044 tk_get_possible_language_specific_top_level_event(OpName,list(ResultNames),list(ParameterNames)) :-
2045 get_possible_language_specific_top_level_event(OpName,ResultNames,ParameterNames).
2046
2047
2048 % ------------
2049
2050 :- use_module(bsyntaxtree).
2051 tcltk_constraint_find_valid_state_with_pred(ParameterBindList,RestPreCond,UseConstantsFromStateID) :-
2052 parse_tclk_parameter_values_and_pred('$initialise_machine',ParameterBindList,RestPreCond,CustomPredicate),
2053 UseInvariant=true,
2054 call_cbc_command(
2055 b_state_model_check:b_set_up_valid_state_with_pred(State,CustomPredicate,
2056 UseInvariant,UseConstantsFromStateID)),
2057 tcltk_add_cbc_state(State,find_valid_state).
2058 tcltk_constraint_find_valid_state :-
2059 call_cbc_command(b_set_up_valid_state(State)),
2060 tcltk_add_cbc_state(State,find_valid_state).
2061
2062 :- use_module(extrasrc(optimizing_solver),[b_set_up_maximally_valid_state/2]).
2063 tcltk_constraint_find_maximal_valid_state :-
2064 current_state_id(ID),
2065 call_cbc_command(b_set_up_maximally_valid_state(ID,State)),
2066 tcltk_add_cbc_state(State,find_maximal_valid_state).
2067
2068
2069 tcltk_constraint_find_dynamic_assertion_violation :-
2070 call_cbc_command(b_find_dynamic_assertion_violation(State)),
2071 tcltk_add_cbc_state(State,cbc_dynamic_assertions_check).
2072
2073 :- use_module(clpfd_interface,[catch_clpfd_overflow_call1/1]).
2074 :- use_module(error_manager,[call_in_fresh_error_scope_for_one_solution/1]).
2075 % catch CLPFD overflows and catch other errors
2076 call_cbc_command(Command) :-
2077 call_in_fresh_error_scope_for_one_solution(
2078 (catch_clpfd_overflow_call1(Command) -> true
2079 ; translate_events_in_current_scope_to_warnings(cbc,'Warning: '),fail
2080 % Maybe we should raise error when Command fails and enumeration warnings are there ?
2081 )).
2082
2083
2084 tcltk_constraint_find_deadlock_state(Res) :-
2085 check_we_are_in_b_mode(cbc_deadlock_freedom_check),
2086 create_texpr(truth,pred,[],True),
2087 call_cbc_command(cbc_deadlock_freedom_check(State,True,0)),
2088 (State == time_out -> Res = time_out
2089 ; tcltk_add_cbc_state(State,cbc_deadlock), Res=deadlock).
2090
2091 % if Filter=1 we remove guards which are inconsitent with goal
2092 tcltk_constraint_find_deadlock_state_with_goal(Filter,Res) :-
2093 check_we_are_in_b_mode(cbc_deadlock_freedom_check),
2094 (b_get_machine_goal(Goal) -> true ; create_texpr(truth,pred,[],Goal)),
2095 call_cbc_command(cbc_deadlock_freedom_check(State,Goal,Filter)),
2096 (State == time_out -> Res = time_out
2097 ; tcltk_add_cbc_state(State,cbc_deadlock), Res=deadlock).
2098
2099 check_we_are_in_b_mode(_) :- b_or_z_mode,!.
2100 check_we_are_in_b_mode(Cmd) :- add_error(check_we_are_in_b_mode,'This command can only be performed in B,Z or TLA+ mode: ',Cmd),fail.
2101
2102 tcltk_constraint_find_deadlock_state_with_goal(true,_Filter,Res) :-
2103 !,tcltk_constraint_find_deadlock_state(Res).
2104 tcltk_constraint_find_deadlock_state_with_goal(GoalPred,Filter,Res) :-
2105 bmachine:b_set_machine_goal(GoalPred),
2106 tcltk_constraint_find_deadlock_state_with_goal(Filter,Res).
2107
2108 :- use_module(cbcsrc(enabling_analysis),[check_if_feasible_operation/5]).
2109 tcltk_check_if_feasible_operation(OpName,UseInvariant,TimeOutFactor,Result) :- % UseInvariant currently always 1 from Tcl
2110 check_if_feasible_operation(OpName,UseInvariant,TimeOutFactor,Result,ResultState),
2111 tcltk_add_cbc_state(ResultState,feasibility_check(OpName)).
2112
2113 % add a state found by constraint-based verification or other method that tries to jump to a state without all intermediate steps
2114 % it will add a separate concrete_constants state if necessary
2115 tcltk_add_cbc_state(State,OpName) :-
2116 tcltk_add_cbc_state(State,'$JUMP'(OpName),_ToID).
2117
2118 tcltk_add_cbc_state('$UNKNOWN_STATE',_,To) :- !,To=none.
2119 tcltk_add_cbc_state(State,OpNameTerm,NewID) :-
2120 seperate_state_into_const_and_vars(State,Constants,Variables),
2121 !,
2122 % store the constants separately: important for memory consumption when continuing animation/model checking
2123 (Variables=[] -> Op='$initialise_machine' ; Op = OpNameTerm),
2124 % if Variables are [] we simply create an initialisation transition
2125 (Constants = [] % no need to create SETUP_CONSTANTS transition
2126 -> (Variables = [] % probably prior state for INITIALISATION cbc check
2127 -> NewID=root, set_cbc_state(root,[],[])
2128 ; FullState = Variables,
2129 tcltk_add_new_transition_transid(root,Op,NewID,FullState,[],TransId2),
2130 set_cbc_state(NewID,[TransId2],[root])
2131 )
2132 ; tcltk_add_new_transition_transid(root,'$setup_constants',CstID,concrete_constants(Constants),[],TransId1),
2133 FullState = const_and_vars(CstID,Variables),
2134 tcltk_add_new_transition_transid(CstID,Op,NewID,FullState,[],TransId2),
2135 set_cbc_state(NewID,[TransId1,TransId2],[CstID,root])
2136 ).
2137 tcltk_add_cbc_state(State,OpNameTerm,NewID) :-
2138 tcltk_add_new_transition_transid(root,OpNameTerm,NewID,State,[],TransId),
2139 set_cbc_state(NewID,[TransId],[root]).
2140
2141
2142 set_cbc_state(NewID,TransIds,His) :-
2143 set_current_state_id(NewID),
2144 reset_op_trace_ids,
2145 maplist(add_to_op_trace_ids,TransIds),
2146 retractall(history(_)),
2147 retractall(forward_history(_)),
2148 assertz(history(His)). %, print(State),nl.
2149
2150 is_constant_binding(SortedCsts,bind(ID,_)) :-
2151 ord_member(ID,SortedCsts).
2152
2153 :- use_module(bsyntaxtree, [get_texpr_ids/2]).
2154 seperate_state_into_const_and_vars(concrete_constants(C),Constants,Variables) :- !,
2155 Constants=C, Variables=[].
2156 seperate_state_into_const_and_vars(State,Constants,Variables) :-
2157 b_get_machine_constants(TCs), get_texpr_ids(TCs,Cs),
2158 sort(Cs,SortedCsts),
2159 include(is_constant_binding(SortedCsts),State,Constants),
2160 Constants \= [],
2161 exclude(is_constant_binding(SortedCsts),State,Variables).
2162
2163
2164
2165 tcltk_constraint_find_static_assertion_violation(TclResult) :-
2166 cbc_constraint_find_static_assertion_violation(Result,[]),
2167 functor(Result,TclResult,_).
2168 cbc_constraint_find_static_assertion_violation(Result,Options) :-
2169 call_cbc_command(cbc_static_assertions_check(State,Options)),
2170 ( State = counterexample_found(CE) ->
2171 Result = counterexample_found,
2172 tcltk_add_cbc_state(CE,static_assertion_check)
2173 ;
2174 Result = State).
2175
2176 /* --------------------------------------------------- */
2177
2178
2179 :- use_module(error_manager,[extract_all_line_col/5]).
2180 :- use_module(probcspsrc(haskell_csp),[extract_span_from_event/4,extract_span_info/2]).
2181
2182 get_source_text_positions(Event,Line,Col,EndLine,EndCol) :-
2183 extract_span_from_action(Event,SPAN),
2184 extract_all_line_col(SPAN,Line,Col,EndLine,EndCol).
2185
2186 extract_span_from_action(Event,Span) :- csp_mode,
2187 extract_span_from_event(Event,Span,_,_).
2188 extract_span_from_action(Event,Pos) :- b_or_z_mode,
2189 get_operation_name(Event,ID),
2190 b_get_machine_operation(ID,_Res,_TParas,_Body,_OType,Pos).
2191
2192
2193 /* -------------------------------------------------------------------- */
2194
2195 get_current_option_eventtrace(OptionNum,TraceInfo) :-
2196 % the option number starts with 0 (coming from a TK listbox)
2197 current_options(ActionsAndIDs),
2198 nth0(OptionNum,ActionsAndIDs,(Id,_,_,_)),
2199 transition_info(Id,TraceInfo),
2200 transition_info_can_be_shown(TraceInfo),!.
2201
2202 transition_info_can_be_shown(eventtrace(_)).
2203 transition_info_can_be_shown(path(_)).
2204
2205
2206 tcltk_has_eventtrace(OptionNum) :-
2207 get_current_option_eventtrace(OptionNum,_Trace).
2208
2209 tcltk_show_eventtrace(OptionNum,Desc) :-
2210 get_current_option_eventtrace(OptionNum,Trace),
2211 explain_transition_info(Trace,Desc).
2212
2213
2214
2215 /* --------------------------------------------------- */
2216
2217 :- use_module(prob2_interface,[execute_model/5]).
2218
2219 tcltk_execute_model(MaxNrSteps,ExecutedSteps,Result) :-
2220 current_state_id(CurID),
2221 execute_model(CurID,MaxNrSteps,_TransitionInfo,ExecutedSteps,Result).
2222
2223
2224 tcltk_find_shortest_trace_to_current_node(list(StringList)) :-
2225 find_trace_to_current_node(OpL),
2226 translate_events(OpL,StringList).
2227
2228
2229 tcltk_execute_trace_to_current_node :-
2230 current_state_id(CurID),
2231 tcltk_execute_trace_to_node(CurID).
2232
2233 tcltk_execute_trace_to_node(ToID) :- /* can be useful for TestCase Generation */
2234 set_target_id(ToID),
2235 tcltk_execute_trace_from_to_found_predicate(root,_,_).
2236
2237 % execcute longest loop-free trace (no repeated state)
2238 tcltk_execute_longest_trace_from(From) :-
2239 set_longest_trace_target,
2240 tcltk_execute_trace_from_to_found_predicate(From,_,_).
2241
2242 % OpL is list of operation ids, IDList is list of state ids
2243 tcltk_execute_trace_from_to_found_predicate(From,OpL,IDList) :-
2244 debug_println(19,finding_trace_from_to(From)), flush_output(user),
2245 find_shortest_path_from_to_found_predicate(From,OpL,IDList,ToID), !,
2246 (current_state_id(From) -> true ; state_space_reset),
2247 debug_println(9,executing_trace(From,OpL,ToID)), flush_output(user),
2248 execute_id_trace_from_current(ToID,OpL,IDList).
2249
2250
2251 find_trace_to_current_node(Trace) :-
2252 current_state_id(CurID),
2253 find_shortest_path_from_to(root,CurID,L,_),
2254 extract_term_trace_from_transition_ids(L,Trace).
2255
2256 :- use_module(state_space_dijkstra).
2257
2258 find_shortest_trace_to_node(FromID,ToID,OpIDListe,StateIDList) :-
2259 find_shortest_path_from_to(FromID,ToID,OpIDListe,StateIDList).
2260
2261
2262 /* --------------------------------------------------- */
2263
2264
2265
2266 tcltk_goto_a_non_deterministic_node(Msg) :- /* same transition leads to different resulting state */
2267 visited_expression_id(ID),
2268 external_functions:non_det_transition(ID,_OpName,TID1,TID2),
2269 tcltk_execute_trace_to_node(ID),
2270 transition(ID,Op1,TID1,ID1),
2271 transition(ID,_Op2,TID2,ID2),
2272 translate_event_with_src_and_target_id(Op1,ID,ID1,OpStr),
2273 ajoin(['Operation leads to at least two different states (ids ', ID1,', ',ID2,
2274 ') for same arguments: ', OpStr], Msg).
2275
2276 tcltk_goto_a_non_deterministic_output_node(Msg) :- /* same transition leads to different outputs */
2277 visited_expression_id(ID),
2278 external_functions:non_det_output_transition(ID,_OpName,TID1,TID2),
2279 tcltk_execute_trace_to_node(ID),
2280 transition(ID,Op1,TID1,ID1),
2281 transition(ID,Op2,TID2,ID2),
2282 translate_event_with_src_and_target_id(Op1,ID,ID1,OpStr1),
2283 translate_event_with_src_and_target_id(Op2,ID,ID2,OpStr2),
2284 ajoin(['Operation has at least two different results for same arguments: ', OpStr1,
2285 '\n and ',OpStr2], Msg).
2286
2287 dif_ID(ID1,ID2) :- (number(ID1),number(ID2) -> ID2>ID1 ; ID1 \= ID2).
2288
2289 tcltk_goto_a_branching_node :- /* two different events/operations enabled */
2290 transition(ID,X,ID2), get_operation_name(X,NX),
2291 transition(ID,Y,ID3), dif_ID(ID2,ID3), get_operation_name(Y,NY), NX\=NY,
2292 print_message(found_branching_op(ID,NX,NY)),
2293 %tcltk_goto_state(find_branching_node,ID),
2294 tcltk_execute_trace_to_node(ID).
2295
2296 tcltk_goto_a_non_resetable_node :-
2297 find_resetable_nodes,
2298 visited_expression_id(ID),
2299 \+(resetable_node(ID)),
2300 \+(not_all_transitions_added(ID)), !,
2301 %tcltk_goto_state(find_non_resetable_node,ID).
2302 tcltk_execute_trace_to_node(ID).
2303
2304 :- use_module(bmachine,[b_get_machine_operation_for_animation/4]).
2305 operation_name_covered(OpName) :- operation_name_covered(OpName,_).
2306 operation_name_covered(OpName,Template) :-
2307 b_get_machine_operation_for_animation(OpName,Results,Par,_),
2308 \+ operation_not_yet_covered(OpName),
2309 length(Par,Arity),
2310 functor(Op,OpName,Arity),
2311 (Results\=[] -> Template = '-->'(Op,_) ; Template = Op).
2312
2313 tcltk_goto_event_list_property_violation(Property,EventSelection,list(OperationList)) :-
2314 % first translate Tk EventSelection Number list into Events
2315 sap:get_selected_events(EventSelection,_AllEvents,OperationList),
2316 include(operation_name_covered,OperationList,_,EnabledOpList), % only keep operations that can be enabled anyway
2317 maplist(operation_name_covered,EnabledOpList,TemplateList), % replace by template
2318 print(find_property_violation_for_template(Property,TemplateList)),nl,
2319 visited_expression(ID,S), ID \= root, S\= concrete_constants(_),
2320 \+(not_all_transitions_added(ID)),
2321 \+( check_event_list_property(Property,ID,TemplateList) ),
2322 print(found_event_list_property_violation(Property,ID)),nl,
2323 tcltk_execute_trace_to_node(ID).
2324
2325 check_event_list_property(relative_deadlock_freedom,ID,TemplateList) :-
2326 relative_deadlock_freedom(ID,TemplateList).
2327 check_event_list_property(valid_controller,ID,TemplateList) :-
2328 is_valid_controller_state(ID,TemplateList).
2329 check_event_list_property(det_controller,ID,TemplateList) :-
2330 is_det_controller_state(ID,TemplateList).
2331
2332 relative_deadlock_freedom(ID,TemplateList) :- member(Template,TemplateList),
2333 transition(ID,Template,_).
2334 is_valid_controller_state(ID,TemplateList) :- % check that exactly one event from TemplateList is enabled
2335 append(_,[LiveEvent|RestTemplate],TemplateList),
2336 transition(ID,LiveEvent,_),!, % we found one enabled event
2337 \+ relative_deadlock_freedom(ID,RestTemplate). % all other events from list must be disabled
2338 is_det_controller_state(ID,TemplateList) :- % check that *at most* one event from TemplateList is enabled
2339 append(_,[LiveEvent|RestTemplate],TemplateList),
2340 transition(ID,LiveEvent,_),!, % we found one enabled event from list
2341 \+ relative_deadlock_freedom(ID,RestTemplate). % all other events from list must be disabled
2342 is_det_controller_state(_,_) :- true. % no event enabled is also ok
2343
2344
2345 tcltk_goto_state_enabling_operation(TclOpName,FromCurrent) :-
2346 adapt_tcl_operation_name(TclOpName,OpName),
2347 operation_name_covered(OpName,Template), % does cater for Event-B any vars
2348 set_found_predicate(ID, transition(ID,Template,_)),
2349 print_message('Computing trace to node'),
2350 (FromCurrent=1
2351 -> current_state_id(FromID) % inefficient: better to do one dijkstra from FromID !
2352 ; FromID = root
2353 ),
2354 tcltk_execute_trace_from_to_found_predicate(FromID,_,_).
2355 % tcltk_goto_state(find_enabled(OpName),ID).
2356
2357
2358 :- use_module(tools_lists,[count_occurences/2]).
2359 % quickly compute which operations have already been covered and which ones not
2360 tcltk_operations_covered_info(list([list(['Operation','Covered'])|OpCov]),list(Occurences),Precise) :-
2361 findall(list([OpName,Cov]),
2362 (specfile:get_possible_event(OpName),
2363 (operation_name_not_yet_covered(OpName)
2364 -> not_yet_covered_info(Precise,OpName,Cov)
2365 ; Cov = 'yes')),OpCov),
2366 (maplist(get_cov,OpCov,Cov2),
2367 count_occurences(Cov2,Occ2),
2368 maplist(construct_list,Occ2,Occurences) -> true ; Occurences=[]).
2369
2370 get_cov(list([_,Cov|_]),Cov).
2371 construct_list(Kind-Nr,list([Kind,Nr])).
2372
2373 :- use_module(cbcsrc(enabling_analysis),[feasible_operation/2]).
2374 not_yet_covered_info(precise,OpName,Cov) :-
2375 feasible_operation(OpName,Res),!, Res=Cov.
2376 not_yet_covered_info(precise,_,R) :- !, R='unknown'.
2377 not_yet_covered_info(_,_,'uncovered').
2378
2379 :- dynamic resetable_node/1.
2380
2381 resetable_node(a).
2382
2383 :- public find_resetable_nodes/0.
2384 :- dynamic find_flag/2.
2385 find_resetable_nodes :-
2386 retractall(find_flag(_,_)),
2387 retractall(resetable_node(_)),
2388 any_transition(root,_,ID), /* add nodes reachable from root */
2389 assertz(find_flag(ID,0)),
2390 fail.
2391 find_resetable_nodes :-
2392 visited_expression(CID,concrete_constants(_C)),
2393 any_transition(CID,_,ID), /* add nodes reachable after a setup_constants */
2394 assertz(find_flag(ID,0)),
2395 fail.
2396 find_resetable_nodes :- find_resetable_nodes_loop,
2397 print_message('Not resetable:'),
2398 visited_expression_id(ID),
2399 \+(resetable_node(ID)),
2400 print_message(ID),
2401 fail.
2402 find_resetable_nodes :-
2403 print_message('Done').
2404
2405
2406 find_resetable_nodes_loop :-
2407 retract(find_flag(ID,N)), !, find_resetable_nodes_loop(ID,N).
2408 find_resetable_nodes_loop.
2409
2410 find_resetable_nodes_loop(ID,N) :- N1 is N+1,
2411 assertz(resetable_node(ID)),
2412 any_transition(NewID,_,ID),
2413 \+(resetable_node(NewID)),
2414 \+(find_flag(NewID,_)),
2415 assertz(find_flag(NewID,N1)),
2416 fail.
2417 find_resetable_nodes_loop(_,_) :- find_resetable_nodes_loop.
2418
2419
2420 :- use_module(specfile, [get_current_state_for_b_formula/2]).
2421
2422 tcltk_show_expression_as_dot(VorE,File) :-
2423 parse_machine_expression(VorE,TypedExpr),
2424 tcltk_show_typed_expression_as_dot_graph(TypedExpr,File).
2425 tcltk_show_expression_as_dot(_VorE,File) :-
2426 add_error(tcltk_show_expression_as_dot,'Computing Value Dot Representation Failed for: ',File),
2427 fail.
2428
2429 :- use_module(dotsrc(state_as_dot_graph),[print_cstate_graph/2]).
2430 :- use_module(dotsrc(state_custom_dot_graph),[tcltk_generate_state_custom_dot_graph_for_expr/2, is_valid_custom_dot_graph_record/1]).
2431
2432 tcltk_show_typed_expression_as_dot_graph(TypedExpr,File) :-
2433 is_valid_custom_dot_graph_record(TypedExpr),
2434 !, % use the more powerful custom_dot_graph mechanism
2435 tcltk_generate_state_custom_dot_graph_for_expr(TypedExpr,File).
2436 tcltk_show_typed_expression_as_dot_graph(TypedExpr,File) :-
2437 get_current_state_for_b_formula(TypedExpr,BState),
2438 extend_state_with_probids_and_lets(BState,BState1),
2439 decompose_expression_for_dot(TypedExpr,ExprList,[]), % decompose pairs so that user can provide multiple values/graphs
2440 compute_for_dot(ExprList,BState1,GraphState), % compute value for each sub-component
2441 format('Writing value to DOT file: ~w~n',[File]),
2442 print_cstate_graph(GraphState,File),
2443 format('Finished writing value to DOT file: ~w~n',[File]).
2444
2445
2446 :- use_module(eval_let_store,[extend_typing_scope_for_stored_lets/2]).
2447 :- use_module(bmachine, [b_parse_machine_expression_from_codes_with_prob_ids/2, type_with_errors/4]).
2448 parse_machine_expression(RawAST,TypedExpr) :- compound(RawAST),!, % allow to pass raw AST as well
2449 extend_typing_scope_for_stored_lets([prob_ids(visible),variables,external_library(safe_available_libraries)],Scope),
2450 type_with_errors(RawAST,Scope,Type,TypedExpr),
2451 % TODO: get_stored_let_typing_scope and add values to state returned by get_current_state_for_b_formula
2452 ((Type=pred ; Type=subst)
2453 -> add_error(parse_machine_expression,'Expected expression formula but obtained: ',Type),fail
2454 ; true ).
2455 parse_machine_expression(VorE,TypedExpr) :-
2456 atom_codes(VorE,VorECodes),
2457 b_parse_machine_expression_from_codes_with_prob_ids(VorECodes,TypedExpr).
2458
2459 compute_for_dot([],_,[]).
2460 compute_for_dot([String,TypedExpr|Tail],BState,[bind(Str,Value)|TS]) :-
2461 % allow user to specify labels for graphs ("lbl1", e1, "lbl2", e2, ...)
2462 get_texpr_expr(String,string(Str)),!,
2463 translate:translate_bexpression_with_limit(TypedExpr,100,EStr),
2464 format('Computing value for expression: ~w~n',[EStr]),
2465 b_compute_expression_with_prob_ids(TypedExpr,BState,Value),
2466 compute_for_dot(Tail,BState,TS).
2467 compute_for_dot([TypedExpr|Tail],BState,[bind(Str,Value)|TS]) :-
2468 translate:translate_bexpression_with_limit(TypedExpr,100,Str),
2469 format('Computing value for expression: ~w~n',[Str]),
2470 b_compute_expression_with_prob_ids(TypedExpr,BState,Value),
2471 compute_for_dot(Tail,BState,TS).
2472
2473 :- use_module(bsyntaxtree, [replace_ids_by_exprs/4]).
2474
2475 % decompose_expression_for_dot ensures that
2476 % ("label1",graph1,"lbl2",graph2) or rec(label:graph) is decomposed and we can associate labels with multiple graphs
2477 decompose_expression_for_dot(b(couple(A,B),_,_)) --> !,
2478 decompose_expression_for_dot(A), decompose_expression_for_dot(B).
2479 decompose_expression_for_dot(b(rec(Fields),_,_)) --> !,decompose_fields_for_dot(Fields).
2480 decompose_expression_for_dot(b(let_expression(Ids,Exprs,Body),couple(_,_),_)) --> !,
2481 % this can happen when OPTIMIZE_AST is set to FALSE and the Jupyter kernel adds LETs; lift string out of let
2482 % :dot expr_as_graph ("h",h,"hh",(h;h))
2483 {replace_ids_by_exprs(Body,Ids,Exprs,Body2)},
2484 decompose_expression_for_dot(Body2).
2485 decompose_expression_for_dot(X) --> [X].
2486
2487
2488 decompose_fields_for_dot([]) --> [].
2489 decompose_fields_for_dot([field(Name,Val)|T]) --> [b(string(Name),string,[]),Val], decompose_fields_for_dot(T).
2490
2491 /* ------------------------------------------------------------------ */
2492
2493 % aka Execute by Predicate
2494 tcltk_add_user_executed_operation(TclOpName,CustomPredicate) :-
2495 tcltk_add_user_executed_operation(TclOpName,[],CustomPredicate).
2496
2497 tcltk_add_user_executed_operation(TclOpName,ParameterBindList,RestPreCond) :-
2498 adapt_tcl_operation_name(TclOpName,OpName),
2499 parse_tclk_parameter_values_and_pred(OpName,ParameterBindList,RestPreCond,CustomPredicate),
2500 current_state_id(CurID),
2501 get_computed_preference(debug_time_out,DTO),
2502 time_out_with_enum_warning_one_solution(b_trans_one_solution_with_pred(OpName,CustomPredicate,CurID,_,_,_),
2503 DTO,TimeOutRes),
2504 (is_time_out_result(TimeOutRes)
2505 -> add_warning(execute_by_predicate,'Timeout occured trying to execute operation with predicate: ',TclOpName),fail
2506 ; true).
2507
2508 parse_tclk_parameter_values_and_pred(OpName,ParameterBindList,RestPreCond,CustomPredicate) :-
2509 GenParseErrors=true,
2510 parse_tclk_parameter_values_and_pred(OpName,ParameterBindList,RestPreCond,CustomPredicate,GenParseErrors).
2511 parse_tclk_parameter_values_and_pred(OpName,ParameterBindList,RestPreCond,CustomPredicate,GenParseErrors) :-
2512 ExtraScope=[],
2513 b_parse_machine_operation_pre_post_predicate(RestPreCond,ExtraScope,RestTypedPred,OpName,GenParseErrors),
2514 (ParameterBindList=[] -> CustomPredicate = RestTypedPred
2515 ; get_animation_operation_parameters(OpName,Parameters),
2516 % print(tcltk_add_user_executed_operation(OpName,ParameterBindList,Parameters)),nl,
2517 parse_parameter_values(ParameterBindList,OpName,Parameters,List),
2518 conjunct_predicates([RestTypedPred|List],CustomPredicate)
2519 ).
2520
2521 :- use_module(bmachine,[b_get_machine_operation_for_animation/7]).
2522 get_animation_operation_parameters('$setup_constants',Parameters) :- !,
2523 b_get_machine_operation_typed_parameters('$setup_constants',Parameters).
2524 get_animation_operation_parameters(OpName,FullParameters) :- xtl_mode,!,
2525 xtl_transition_parameters(OpName,ParaNames),
2526 maplist(make_string_id,ParaNames,FullParameters).
2527 get_animation_operation_parameters(OpName,FullParameters) :-
2528 TopLevel=true, % otherwise ANY parameters not added when show_eventb_any_arguments is true
2529 b_get_machine_operation_for_animation(OpName,_Results,Parameters,_Body,_OType,TopLevel,_OpPos),
2530 b_get_operation_non_det_modifies(OpName,NonDetVars), % also allow setting non-deterministically assigned vars
2531 b_get_machine_variables(Vars),
2532 include(non_det_modified(NonDetVars),Vars,ParaVars),
2533 append(ParaVars,Parameters,FullParameters).
2534
2535 make_string_id(ID,b(identifier(ID),string,[])).
2536 non_det_modified(NonDetVars,TID) :- get_texpr_id(TID,ID), ord_member(ID,NonDetVars).
2537
2538 % parse a list of variable names and expressions and turn into equal predicates
2539 % Motivation: this can also deal with Z-style identifiers like in?, ... which cannot be parsed
2540 :- use_module(btypechecker, [unify_types_strict/2, coerce_type/4]).
2541 :- use_module(extrasrc(before_after_predicates),[prime_dollar0_bexpr_for_ids/3]).
2542 :- use_module(probsrc(b_read_write_info), [b_get_read_write/3]).
2543
2544 parse_parameter_values([],_,_,Res) :- !,Res=[].
2545 parse_parameter_values(['='(ParameterID,ExpressionStr)|T],OpName,Parameters,[Pred|PT]) :-
2546 atom_codes(ExpressionStr,Codes),
2547 format('Parsing for parameter ~w : ~w~n',[ParameterID,ExpressionStr]),
2548 !,
2549 b_parse_machine_expression_from_codes_with_prob_ids(Codes,TypedExpr),
2550 get_texpr_type(TypedExpr,Type),
2551 TID = b(identifier(ParameterID),ExpectedType,[]),
2552 % if we reference a modified variable in the expression, we replace id by id$0 :
2553 (b_or_z_mode -> b_get_read_write(OpName,_,Written) ; Written=[]),
2554 prime_dollar0_bexpr_for_ids(TypedExpr,Written,PrimedTypedExpr0),
2555 (xtl_mode
2556 -> (Type=string -> PrimedTypedExpr1=PrimedTypedExpr0
2557 ; coerce_type(Type,string,PrimedTypedExpr0,PrimedTypedExpr1)),
2558 PrimedTypedExpr=b(external_function_call('STRING_TO_TERM',[PrimedTypedExpr1]),string,[]),
2559 Type2=string
2560 ; PrimedTypedExpr=PrimedTypedExpr0, Type2=Type),
2561 (member(b(identifier(ParameterID),ExpectedType,_),Parameters)
2562 -> (unify_types_strict(Type2,ExpectedType)
2563 -> safe_create_texpr(equal(TID,PrimedTypedExpr),pred,Pred),
2564 parse_parameter_values(T,OpName,Parameters,PT)
2565 ; coerce_type(Type2,ExpectedType,PrimedTypedExpr,NewTypedExpr)
2566 -> safe_create_texpr(equal(TID,NewTypedExpr),pred,Pred),
2567 add_message(parse_parameter_values,'Coercion of provided parameter value: ',NewTypedExpr),
2568 parse_parameter_values(T,OpName,Parameters,PT)
2569 ;
2570 pretty_type(Type2,String1), pretty_type(ExpectedType,String2),
2571 ajoin(['Value for parameter ',ParameterID,' has unexpected type ',String1,', expected: '],Msg),
2572 add_error(parse_parameter_values,Msg,String2),
2573 fail
2574 )
2575 ; add_error(parse_parameter_values,'Unknown operation parameter: ',ParameterID),
2576 fail).
2577 parse_parameter_values(PB,OpName,P,_) :-
2578 add_internal_error('Illegal parameter binding: ',parse_parameter_values(PB,OpName,P,_)),fail.
2579
2580
2581 % just as above but with typed predicate
2582 tcltk_add_user_executed_operation_typed(OpName,Operation,TypedCustomPredicate,NewID) :-
2583 current_state_id(CurID),
2584 tcltk_add_user_executed_operation_typed(OpName,CurID,Operation,TypedCustomPredicate,_,NewID).
2585 tcltk_add_user_executed_operation_typed(OpName,CurID,Operation,TypedCustomPredicate,TransID,NewID) :-
2586 b_trans_one_solution_with_pred(OpName,TypedCustomPredicate,CurID,Operation,TransID,NewID).
2587
2588 % allows the user to arbitrarily change variable values
2589 % Attention: this can of course violate the invariant
2590 tcltk_add_user_modify_variable_transition(VarID,ValueStr) :-
2591 current_state_id(CurID),
2592 tcltk_add_user_modify_variable_transition(CurID,VarID,ValueStr,_).
2593 tcltk_add_user_modify_variable_transition(CurID,VarID,ValueStr,NewID) :-
2594 get_id_type(VarID,Kind,Type),!,
2595 format('Trying to update ~w ~w to new value: ~w~n',[Kind,VarID,ValueStr]),
2596 eval_string_in_cur_state(ValueStr,ValTyped,Value),
2597 get_texpr_type(ValTyped,ValType),
2598 check_types(Kind,VarID,Type,ValType),
2599 visited_expression(CurID,CurState),
2600 update_variable(CurState,VarID,Value,NewState),
2601 Residue=[], TransInfo=[],
2602 Operation = '$modify'(string(VarID),string(ValueStr)),
2603 add_trans_id_with_infos(CurID,[],Operation,NewState,Residue,NewID,TransInfo,_),
2604 tcltk_goto_state(Operation,NewID).
2605
2606 check_types(_,_,Type,ValType) :-
2607 unify_types_strict(Type,ValType),!.
2608 check_types(Kind,VarID,Type,ValType) :-
2609 pretty_type(ValType,VTS), pretty_type(Type,TS),
2610 ajoin(['Unexpected type of value (', VTS, ' instead of ',TS,') for ',Kind,' :'],Msg),
2611 add_error(check_types,Msg,VarID),
2612 fail.
2613
2614 :- use_module(bmachine,[b_is_variable/2, b_is_constant/2]).
2615 get_id_type(ID,variable,Type) :- b_is_variable(ID,Type).
2616 get_id_type(ID,constant,Type) :- b_is_constant(ID,Type).
2617 % update variable value or constant value in concrete_constants state
2618 update_variable([],VarID,_,[]) :- add_error(update_variable,'Identifier does not exist in state:',VarID),fail.
2619 update_variable([bind(VarID,_)|T],VarID,NewVal,Res) :- !, Res = [bind(VarID,NewVal)|T].
2620 update_variable([H|T],VarID,NewVal,[H|UT]) :- !, update_variable(T,VarID,NewVal,UT).
2621 update_variable(const_and_vars(ConstID,Old),VarID,NewVal,const_and_vars(ConstID,New)) :- !,
2622 update_variable(Old,VarID,NewVal,New).
2623 update_variable(concrete_constants(Old),VarID,NewVal,concrete_constants(New)) :- !,
2624 update_variable(Old,VarID,NewVal,New). % here we allow updating constants
2625
2626 % execute operation by predicate finding just one solution
2627 b_trans_one_solution_with_pred(OpName,TypedCustomPredicate,CurID,Operation,TransId,NewID) :-
2628 catch(
2629 (
2630 call_cleanup(b_trans_one_solution_with_pred2(OpName,TypedCustomPredicate,CurID,Operation,TransId,NewID),
2631 bmachine:reset_temp_predicate)
2632 ),
2633 enumeration_warning(Cause,_,_,_,_),
2634 (
2635 add_warning(b_trans_one_solution_with_pred,
2636 'Enumeration warning prevented finding solution for operation: ',Cause),
2637 fail
2638 )
2639 ).
2640
2641 % find one solution from current state using OpName and respecting temp_predicate
2642 % Note: the predicate is evaluated in post-state, use $0 to access values in current state
2643 b_trans_one_solution_with_pred2(OpName,TypedCustomPredicate,CurID,Operation,TransId,NewID) :-
2644 (b_or_z_mode -> b_top_level_operation(OpName) ; true),
2645 !,
2646 visited_expression(CurID,InState),
2647 set_error_context(operation(OpName,CurID)),
2648 set_context_state(CurID,b_trans_one_solution_with_pred),
2649 debug_format(19,'Executing ~w in state ~w by predicate~n',[OpName,CurID]),
2650 ? call_cleanup(execute_operation_by_predicate_in_state(InState,OpName,TypedCustomPredicate,Operation,NewState,TransInfo),
2651 (clear_context_state,clear_error_context)),
2652 !,
2653 debug_format(19,'Executed by predicate: ~w~n',[OpName]),
2654 add_trans_id_infos(CurID,Operation,NewState,NewID,TransId,TransInfo),
2655 tcltk_goto_state(Operation,NewID).
2656 b_trans_one_solution_with_pred2(OpName,TypedCustomPredicate,CurID,Operation,TransId,NewID) :-
2657 assert_temp_predicate_with_prob_def_set_elements(TypedCustomPredicate),
2658 visited_expression(CurID,InState),
2659 set_error_context(operation(OpName,CurID)),
2660 set_context_state(CurID,b_trans_one_solution_with_pred),
2661 temporary_set_preference(maxNrOfEnablingsPerOperation,1,Max),
2662 temporary_set_preference(maxNrOfInitialisations,1,MaxI),
2663 start_ms_timer(Timer),
2664 call_cleanup((specfile:b_trans(InState,OpName,Operation,NewState,TransInfo) -> true),
2665 (stop_ms_timer(Timer),
2666 reset_temporary_preference(maxNrOfEnablingsPerOperation,Max),
2667 reset_temporary_preference(maxNrOfInitialisations,MaxI),
2668 clear_context_state,clear_error_context)
2669 ),
2670 debug_println(9,found_solution(NewState)),nl,
2671 % now add a transition to the state space:
2672 Residue=[],
2673 add_trans_id_with_infos(CurID,[],Operation,NewState,Residue,NewID,TransInfo,TransId),
2674 tcltk_goto_state(Operation,NewID).
2675
2676 :- use_module(b_global_sets,[inline_prob_deferred_set_elements_into_bexpr/2]).
2677 assert_temp_predicate_with_prob_def_set_elements(CustomPredicate) :-
2678 inline_prob_deferred_set_elements_into_bexpr(CustomPredicate,CompiledPred),
2679 bmachine:assert_temp_typed_predicate(CompiledPred).
2680
2681
2682 % allow user to execute any statement
2683 % TO DO: catch operation_calls and route them differently
2684 % translate operation_call arguments into predicate and call tcltk_add_user_executed_operation_typed(OpName,Operation,TypedCustomPredicate,NewID)
2685 tcltk_add_user_executed_statement(Statement,Updates,NewID) :-
2686 current_expression(CurID,InState),
2687 state_corresponds_to_initialised_b_machine(InState,BState),
2688 set_context_state(CurID,tcltk_add_user_executed_statement),
2689 %start_ms_timer(Timer),
2690 call_cleanup((tcltk_interface:b_full_execute_top_level_statement_with_probids(Statement,BState,Updates,NewState)->true),
2691 clear_context_state),
2692 % TO DO: do we need to catch enumeration warnings ?
2693 %stop_ms_timer(Timer),
2694 Residue=[], TransInfo = [],
2695 debug_println(4,executed(Updates,NewState)),
2696 compute_all_transitions_if_necessary(CurID), % first ensure we have already computed outgoing transitions as usual, so that we can detect if a new state is added
2697 (get_id_of_node_and_add_if_required(NewState,NewID,Exists,CurID,'$unknown_operation',[]),
2698 Exists=exists,
2699 transition(CurID,Action,TransId,NewID)
2700 -> debug_println(4,transition_exists_already(Action,TransId))
2701 ; translate:translate_substitution(Statement,OpLabel),
2702 add_trans_id_with_infos(CurID,[],'$USER'(OpLabel),NewState,Residue,NewID,TransInfo,_),
2703 format('Added new user-initiated transition to ~w via: ~w~n',[NewID,OpLabel])
2704 ),
2705 tcltk_goto_state(OpLabel,NewID).
2706
2707 :- use_module(eval_let_store,[extend_state_with_probids_and_lets/2]).
2708 :- use_module(kernel_waitflags,[init_wait_flags_with_call_stack/2, ground_wait_flags/1]).
2709 %% allows one to execute any statement (not just operations).
2710 b_full_execute_top_level_statement_with_probids(Body,InState,Updates,NewState) :-
2711 extend_state_with_probids_and_lets(InState,InState1),
2712 init_wait_flags_with_call_stack(WF,[prob_command_context(user_executed_statement,unknown)]),
2713 b_execute_top_level_statement(Body,[],InState1,Updates,WF,_Path1,output_not_required),
2714 ground_wait_flags(WF),
2715 store:store_updates_and_normalise(Updates,InState,NewState).
2716
2717 % --------------------------------------------------------------------------------------
2718
2719
2720 :- use_module(bmachine).
2721 :- use_module(specfile).
2722 :- use_module(tools).
2723 :- use_module(library(lists)).
2724 :- use_module(store).
2725 :- use_module(self_check).
2726 :- use_module(b_global_sets).
2727 :- use_module(translate).
2728
2729
2730 /* --------------------------------------------------------- */
2731 /* --------------------------------------------------------- */
2732
2733
2734 /* ----------------------------------*/
2735 /* b_analyse_conjunction */
2736 /* ----------------------------------*/
2737
2738
2739 /* provide list of possible options for analysis */
2740 tcltk_analyse_option(invariant,'INVARIANT') :- b_or_z_mode.
2741 tcltk_analyse_option(properties,S) :- b_or_z_mode,
2742 get_specification_description(properties,S).
2743 tcltk_analyse_option(assertions,S) :- (b_or_z_mode ; csp_mode),
2744 get_specification_description(assertions,S).
2745 tcltk_analyse_option(deadlock,'DEADLOCKED') :- b_or_z_mode.
2746
2747
2748 :- use_module(predicate_evaluator).
2749 /* perform the various analysis */
2750 tcltk_analyse(Mode,Type,ListWithResults,Total,False,Unknown) :-
2751 (Mode == unicode
2752 -> set_unicode_mode,
2753 call_cleanup(tcltk_analyse2(Type,ListWithResults,Summary),unset_unicode_mode)
2754 ; tcltk_analyse2(Type,ListWithResults,Summary)),
2755 (member(total/Total,Summary) -> true ; Total=0),
2756 (member(false/False,Summary) -> true ; False=0),
2757 (member(unknown/Unknown,Summary) -> true ; Unknown=0).
2758 tcltk_analyse2(invariant,L,Summary) :- !,tcltk_analyse_invariant(L,Summary).
2759 tcltk_analyse2(properties,L,Summary) :- !,tcltk_analyse_properties(L,Summary).
2760 tcltk_analyse2(assertions,L,Summary) :- !,tcltk_analyse_assertions(L,Summary).
2761 tcltk_analyse2(deadlock,L,Summary) :- !,tcltk_analyse_deadlock(L,Summary).
2762 tcltk_analyse2(X,L,Summary) :- add_error(tcltk_analyse, 'Unknown type of formula: ', X),
2763 L=[], Summary=[].
2764
2765
2766 /* --------------------------------- */
2767
2768 tcltk_show_current_state(TransBState) :-
2769 current_b_expression(B),
2770 translate_bstate(B,TransBState).
2771
2772
2773 tcltk_show_typing_of_variables_and_constants(list(List)) :-
2774 b_get_machine_variables(TypedVarList),
2775 convert_typed_varlist(TypedVarList,VarList,Types),
2776 generate_typing_list(VarList,Types,VList,VarCard),
2777 length(VarList,NrVars),
2778 format_to_codes(' VARIABLES [nr=~w,card=~w]',[NrVars,VarCard],Codes1),atom_codes(VARAtom,Codes1),
2779
2780 b_get_machine_all_constants(TypedCstList),
2781 convert_typed_varlist(TypedCstList,CVarList,CTypes),
2782 find_non_det_constants,
2783 generate_typing_list(CVarList,CTypes,CList,CCard),
2784 ( CList = []
2785 -> List = [VARAtom|VList]
2786 ; length(CVarList,NrCsts),
2787 format_to_codes(' CONSTANTS [nr=~w,card=~w]',[NrCsts,CCard],Codes2),atom_codes(CstAtom,Codes2),
2788 append([CstAtom|CList],[VARAtom|VList],List)
2789 ),!.
2790 tcltk_show_typing_of_variables_and_constants(list(['TYPE ERROR in MACHINE'])).
2791
2792
2793 %%% Used to get the constant values for the currently loaded B machine in form of a B predicate.
2794 %%% In case that the constants in the model has not been set up then all possible constants'
2795 %%% evaluations will be provided in form of a predicate in Disjunctive Normal Form.
2796 %%% Predicate used for setting up constants when model checking with TLC. (TLA)
2797
2798 tcltk_get_constants_predicate(Pred) :-
2799 tcltk_get_constants_predicate(root,Pred,_PredComplete).
2800 tcltk_get_constants_predicate(CurID,Pred,PredComplete) :-
2801 (CurID=root
2802 -> get_constants_as_disjoint_predicate(Pred),
2803 (max_reached_or_timeout_for_node(root) -> PredComplete = incomplete ; PredComplete = complete)
2804 ; PredComplete=complete,
2805 prob2_interface:get_state(CurID,EState),
2806 filter_constants_bindings(EState,X), % this will only get current constants values
2807 translate_bstate_to_pred(X,Pred)
2808 ).
2809
2810 get_constants_as_disjoint_predicate(Pred) :-
2811 findall(R,get_set_up_constants_solution(R),PredList),
2812 add_or_between_constant_predicates(PredList,Pred).
2813
2814 %get_a_part_of_the_found_solutions(L,N,Part,PredComplete) :-
2815 % length(L,Length),
2816 % (N>=Length
2817 % -> Part=L, PredComplete=complete
2818 % ; sublist(L,Part,_B,N,_A), PredComplete=incomplete
2819 % ).
2820
2821 translate_bstate_to_pred(State,P) :-
2822 temporary_set_preference(expand_avl_upto,-1,CHNG2),
2823 translate: translate_bstate(State,P),
2824 reset_temporary_preference(expand_avl_upto,CHNG2).
2825
2826 get_set_up_constants_solution(R) :-
2827 compute_transitions_if_necessary(root),
2828 %\+ max_reached_or_timeout_for_node(root),!, % then lookup constants rather than computing them
2829 transition(root,_,Dst),
2830 visited_expression(Dst,concrete_constants(X)),
2831 translate_bstate_to_pred(X,R).
2832 %get_set_up_constants_solution(R) :-
2833 % b_interpreter: b_set_up_concrete_constants(X,_),
2834 % translate:translate_bstate(X,R).
2835
2836 add_or_between_constant_predicates([],'1=1').
2837 add_or_between_constant_predicates(L,Res) :-
2838 tools: ajoin_with_sep(L,' or ',Res).
2839
2840 filter_constants_bindings(EState,R) :-
2841 b_get_machine_all_constants(C),
2842 convert_typed_varlist(C,CVarList,_CTypes),
2843 filter_constants_bindings1(EState,CVarList,R).
2844
2845 filter_constants_bindings1([],_,[]).
2846 filter_constants_bindings1([bind(Ident,Val)|T],CVarList,Res) :-
2847 (member(Ident,CVarList) -> Res = [bind(Ident,Val)|Rest]; Res = Rest),
2848 filter_constants_bindings1(T,CVarList,Rest).
2849
2850 convert_typed_varlist([],[],[]).
2851 convert_typed_varlist([b(identifier(ID),Type,_)|T],[ID|IT],[Type|TT]) :-
2852 %print(ID), print(' : '), print(Type),nl,
2853 % db : set(couple(global(Name),global(Code))) a : set(integer) boolean
2854 convert_typed_varlist(T,IT,TT).
2855 %--------------------------------------
2856
2857
2858 :- use_module(symsrc(symmetry_marker),[type_allows_for_precise_marker/1]).
2859 :- use_module(bmachine,[b_is_unused_constant/1]).
2860 :- use_module(library(codesio),[format_to_codes/3]).
2861 :- use_module(kernel_card_arithmetic,[safe_mul/3]).
2862 generate_typing_list([],[],[],1).
2863 generate_typing_list([Var|VT],[BasicType|TT],[Translation|Rest],TotCard) :-
2864 pretty_type(BasicType,PrettyType),
2865 (kernel_objects:max_cardinality(BasicType,Card) -> true ; Card='??'),
2866 (b_get_constant_represented_inside_global_set(Var,BasicType)
2867 -> Imp='(treated as enumerated) '
2868 ; (preference(symmetry_mode,hash),
2869 \+type_allows_for_precise_marker(BasicType))
2870 -> Imp = '(IMPRECISE for HASH) '
2871 ; Imp = ''
2872 ),
2873 (non_det_constant(Var)
2874 -> MulSol ='[multiple solutions in SETUP_CONSTANTS]'
2875 ; MulSol=''),
2876 (b_is_unused_constant(Var) -> Unused=' (unused)' ; Unused=''),
2877 % translate:translate_bexpression(b(member(identifier(Var),BasicType),pred,[]),Translation),
2878 format_to_codes('~w:~w [card=~w]~w~w~w',[Var,PrettyType,Card,MulSol,Imp,Unused],Codes),
2879 atom_codes(Translation,Codes),
2880 generate_typing_list(VT,TT,Rest,RestCard),
2881 safe_mul(RestCard,Card,TotCard).
2882
2883 :- use_module(symsrc(symmetry_marker),[hash_model_checking_imprecise/2]).
2884 :- use_module(translate,[pretty_type/2]).
2885
2886 tcltk_hash_model_checking_imprecise :-
2887 get_preference(symmetry_mode,hash),
2888 hash_model_checking_imprecise(ID,BasicType),!,
2889 print(' * Note: Hashing may be imprecise for: '),
2890 print(ID), print(' : '),translate:pretty_type(BasicType,S),print(S), print(' !'),nl.
2891
2892
2893 /* find constants which are assigned multiple values */
2894 :- dynamic non_det_constant/1.
2895 find_non_det_constants :-
2896 retractall(non_det_constant(_)),
2897 findall(Csts,visited_expression(_,concrete_constants(Csts),_),CL),
2898 (CL=[Valuation1|O],O=[_|_] -> find_non_det_constants1(Valuation1,O)
2899 ; true /* 0 or 1 valuation only */
2900 ).
2901
2902 find_non_det_constants1([],_).
2903 find_non_det_constants1([bind(C,Value)|T],Other) :- check_cst(Other, C, Value, PeeledOther),
2904 find_non_det_constants1(T,PeeledOther).
2905
2906 check_cst([],_,_,[]).
2907 check_cst([ [bind(C,OtherVal)|T1] | TT], C, Value, [ T1 | PTT]) :-
2908 (Value=OtherVal -> check_cst(TT,C,Value,PTT)
2909 ; assertz(non_det_constant(C)), peel2(TT,PTT)).
2910 peel2([],[]).
2911 peel2([ [_|T1] | TT], [ T1 | PTT]) :- peel2(TT,PTT).
2912
2913
2914 /* --------------------------------- */
2915
2916
2917 /* --------------------------------- */
2918
2919 %%
2920 % Visualize Invariant...
2921 %
2922 % Siehe bvisual.pl
2923
2924 :- use_module(dotsrc(bvisual),[get_tree_from_expr/4, write_dot_graph_to_file/2]).
2925
2926
2927 generate_dot_from_invariant(FileName):-
2928 bmachine:b_get_invariant_from_machine(BExpr),
2929 write_dot_file_for_pred_expr(BExpr,FileName).
2930
2931
2932 :- use_module(b_operation_guards,[get_quantified_operation_enabling_condition/5]).
2933 generate_dot_from_operation(TclOpName,FileName) :-
2934 adapt_tcl_operation_name(TclOpName,OpName),
2935 Simplify=false,
2936 get_quantified_operation_enabling_condition(OpName, BExpr, _BecomesSuchVars, _Precise, Simplify),
2937 write_dot_file_for_pred_expr(BExpr,FileName).
2938 %generate_tree_from_boolean_expression(BExpr, Tree,BecomesSuchVars),
2939 %write_dot_graph_to_file(Tree,FileName).
2940
2941 % a version with additional parameters and additional pre condition / guard predicate
2942 generate_dot_from_operation_with_params(TclOpName,ParameterBindList,RestPreCond, FileName) :-
2943 adapt_tcl_operation_name(TclOpName,OpName),
2944 Simplify=false,
2945 get_quantified_operation_enabling_condition(OpName, BExpr, BecomesSuchVars,_Precise,Simplify),
2946 parse_tclk_parameter_values_and_pred(OpName,ParameterBindList,RestPreCond,CustomPredicate),
2947 insert_custom_predicate_into_guard(BExpr,CustomPredicate,FullPred),
2948 %translate:nested_print_bexpr(FullPred),nl,
2949 % TODO: probably allow all variables to be primed in CustomPredicate:
2950 b_ast_cleanup:annotate_becomes_such_vars(BecomesSuchVars,CustomPredicate,BSV2),
2951 write_dot_file_for_pred_expr(FullPred,FileName,BSV2).
2952
2953 insert_custom_predicate_into_guard(b(exists(Para,Body),pred,Info),Pred,Res) :- !,
2954 Res = b(exists(Para,BodyRes),pred,Info), % TODO: update wd infos
2955 insert_custom_predicate_into_guard(Body,Pred,BodyRes).
2956 insert_custom_predicate_into_guard(Guard,CustomPred,FullPred) :-
2957 % put CustomPred first so that bvisual prioritises solutions coming from user values/predicate
2958 % TODO: we could try and force equalities in CustomPred before calling bvisual
2959 conjunct_predicates([CustomPred,Guard],FullPred).
2960
2961 :- use_module(bmachine, [
2962 b_get_properties_from_machine/1,
2963 b_get_machine_constants/1,
2964 b_machine_has_constants_or_properties/0 ]).
2965 :- use_module(bsyntaxtree,[create_or_merge_exists/3]).
2966 get_properties(BExpr,CreateExists):-
2967 b_get_properties_from_machine(Condition),
2968 ( (CreateExists=true,b_machine_has_constants_or_properties) ->
2969 b_get_machine_constants(IDs),
2970 create_or_merge_exists(IDs, Condition, BExpr)
2971 ;
2972 BExpr = Condition
2973 ).
2974
2975 generate_dot_from_properties(FileName) :-
2976 (current_state_corresponds_to_fully_setup_b_machine -> CreateExists=false; CreateExists=true),
2977 get_properties(BExpr,CreateExists),
2978 write_dot_file_for_pred_expr(BExpr,FileName).
2979
2980 :- use_module(bsyntaxtree,[conjunct_predicates/2]).
2981
2982 generate_dot_from_assertions(FileName) :-
2983 (current_state_corresponds_to_setup_constants_b_machine,
2984 bmachine:b_get_dynamic_assertions_from_machine(BExpr), BExpr \=[]
2985 -> true
2986 ; bmachine:b_get_static_assertions_from_machine(BExpr)
2987 ),
2988 conjunct_predicates(BExpr,BE),
2989 write_dot_file_for_pred_expr(BE,FileName).
2990
2991 generate_dot_from_goal(FileName) :-
2992 b_get_machine_goal(BExpr),!,
2993 write_dot_file_for_pred_expr(BExpr,FileName,all_primed_vars).
2994 generate_dot_from_goal(FileName) :-
2995 write_dot_file_for_pred_expr_and_state(b(string('No GOAL DEFINITION available'),string,[]),[],[],FileName).
2996
2997 generate_dot_from_deadlock_po(FileName) :-
2998 b_state_model_check:get_unsorted_all_guards_false_pred(BExpr),
2999 %print('% CHECKING: '),translate_bexpression(BExpr,PT), print(PT),nl,
3000 write_dot_file_for_pred_expr(BExpr,FileName). % we do not check it is a predicate anymore
3001
3002
3003 generate_dot_from_formula(Pred,FileName) :-
3004 debug_format(19,'Parsing formula ~w~n',[Pred]),
3005 parse_machine_formula(Pred,TypedExpr),
3006 debug_format(19,'Writing dot formula ~w~n',[Pred]),
3007 ? write_dot_file_for_pred_expr(TypedExpr,FileName,all_primed_vars).
3008
3009
3010 :- use_module(bmachine, [b_parse_machine_formula/3, type_with_errors/4, get_primed_machine_variables/1]).
3011 parse_machine_formula(RawAST,TypedPred) :- compound(RawAST),!, % allow to pass raw AST as well
3012 get_primed_machine_variables(PV),
3013 type_with_errors(RawAST,[prob_ids(visible),identifier(PV),variables],_Type,TypedPred).
3014 parse_machine_formula(PredStr,TypedExpr) :-
3015 get_primed_machine_variables(PV),
3016 b_parse_machine_formula(PredStr,[prob_ids(visible),identifier(PV),variables],TypedExpr).
3017
3018
3019 write_dot_file_for_pred_expr(BExpr,FileName) :-
3020 write_dot_file_for_pred_expr(BExpr,FileName,[]).
3021 write_dot_file_for_pred_expr(BExpr,FileName,BecomesSuchVars) :-
3022 ? generate_tree_in_cur_state(BExpr, Tree,BecomesSuchVars),
3023 printsilent('% Writing to: '), printsilent(FileName),nls,
3024 write_dot_graph_to_file(Tree,FileName).
3025 write_dot_file_for_pred_expr_and_state(BExpr, LocalState, State,FileName) :-
3026 get_tree_from_expr(Tree, BExpr, LocalState, State),
3027 printsilent('% Writing to: '), printsilent(FileName),nls,
3028 write_dot_graph_to_file(Tree,FileName).
3029
3030 :- use_module(probsrc(state_space),[get_current_predecessor_state_id/1]).
3031 :- use_module(probsrc(specfile),[extract_variables_from_state_as_primed/2]).
3032
3033 generate_tree_in_cur_state(BExpr,Tree,all_primed_vars) :-
3034 (get_current_predecessor_state_id(PredID),
3035 visited_expression(PredID,SrcState),
3036 extract_variables_from_state_as_primed(SrcState,PrimedVarBindings)
3037 -> true
3038 ; PrimedVarBindings=[]
3039 ),
3040 get_current_state_for_b_formula(BExpr,CurState0),
3041 extend_state_with_probids_and_lets(CurState0,CurState1),
3042 append(PrimedVarBindings,CurState1,CurState),
3043 get_tree_from_expr(Tree, BExpr, [], CurState).
3044 generate_tree_in_cur_state(BExpr,Tree,BecomesSuchVars) :-
3045 get_current_state_for_b_formula(BExpr,CurState0),
3046 extend_state_with_probids_and_lets(CurState0,CurState1),
3047 % print(cur(CurState1)),nl,
3048 insert_before_substitution_variables(BecomesSuchVars,[],CurState1,CurState1,CurState),
3049 !,
3050 get_tree_from_expr(Tree, BExpr, [], CurState).
3051
3052 % generate a dot tree representation for a value; mostly useful for symbolic values
3053 write_dot_file_for_value_as_tree(Value,FileName) :-
3054 transform_value_to_expr(Value,BExpr),
3055 temporary_set_preference(formula_tree_minimal_timeout,5,Prev1),
3056 temporary_set_preference(formula_tree_maximal_timeout,30,Prev2),
3057 call_cleanup(generate_tree_in_cur_state(BExpr, Tree,[]),
3058 (reset_temporary_preference(formula_tree_minimal_timeout,Prev1),
3059 reset_temporary_preference(formula_tree_maximal_timeout,Prev2))),
3060 printsilent('% Writing to: '), printsilent(FileName),nls,
3061 write_dot_graph_to_file(Tree,FileName).
3062
3063 :- use_module(probsrc(bsyntaxtree),[create_typed_ids/3]).
3064 :- use_module(library(lists),[maplist/4]).
3065 transform_value_to_expr(closure(P,T,B),E) :-
3066 create_typed_ids(P,T,Parameters),!,
3067 E=b(comprehension_set(Parameters,B),set(any),[]). % TO DO: we could create typing
3068 transform_value_to_expr(Val,b(value(Val),any,[])).
3069
3070 :- use_module(tools,[maplist5/5]).
3071 tcltk_bv_get_tops(Tops) :-
3072 bv_get_top_level(Tops).
3073 tcltk_bv_get_structure(Id,Label,list(Subs)) :-
3074 bv_expand_formula(Id,Label,Subs).
3075 tcltk_bv_is_leaf(Id,Label) :-
3076 bv_expand_formula(Id,Label,[]).
3077 tcltk_bv_get_values(Ids,list(RTexts),list(Tags)) :-
3078 current_state_id(StateId),
3079 bv_get_values(Ids,StateId,Values),
3080 maplist5(tcltk_interface:retrieve_tag_adapted_text_for_id,Ids,Values,Tags,RTexts).
3081 tcltk_bv_get_value(Id,RText,Tag) :-
3082 tcltk_bv_get_values([Id],list([RText]),list([Tag])).
3083 tcltk_bv_show_formula_as_dot_tree(Id,File) :-
3084 bv_get_stored_formula_expr(Id,TExpr),
3085 write_dot_file_for_pred_expr(TExpr,File).
3086 tcltk_bv_get_pp_formula_string(Id,PPFormula) :-
3087 bv_get_stored_formula_expr(Id,TExpr),
3088 translate:translate_bexpression(TExpr,PPFormula).
3089
3090 tcltk_bv_show_formula_as_dot_graph(Id,File) :-
3091 bv_get_stored_formula_expr(Id,TExpr),
3092 get_texpr_type(TExpr,Type),
3093 Type \= pred, Type \= subst,
3094 % tcltk_show_typed_expression_as_dot_graph decomposes expressions and shows value as graph: could be useful for pre-configured DEFINITIONS
3095 tcltk_show_typed_expression_as_dot_graph(TExpr,File).
3096
3097 tcltk_bv_show_value_as_dot_tree(Id,File) :- % useful for symbolic values
3098 current_state_id(StateId),
3099 bv_get_btvalue(Id,StateId,_E,Value),
3100 write_dot_file_for_value_as_tree(Value,File).
3101
3102 % a variation of tcltk_bv_show_value_as_dot_tree without dependence on bvisual2
3103 tcltk_show_identifier_value_as_dot_tree(RawId,File) :- % this also works if bvisual2 is not set up and entry active
3104 get_identifier(RawId,Id),
3105 current_expression(_ID,CurState),
3106 expand_const_and_vars_to_full_store(CurState,EState),
3107 (EState=[] -> add_error(tcltk_show_identifier_value_as_dot_tree,'Initialise machine first, cannot retrieve value for identifier:',Id)
3108 ; lookup_value_for_existing_id(Id,EState,Value)
3109 -> write_dot_file_for_value_as_tree(Value,File)
3110 ; add_error(tcltk_show_identifier_value_as_dot_tree,'Cannot retrieve value for identifier:',Id)).
3111
3112 get_identifier(AtomicID,Res) :- atom(AtomicID), valid_id(AtomicID), !,Res=AtomicID.
3113 get_identifier(identifier(_,ID),Res) :- valid_id(ID),!, Res=ID. % raw ID from prob2_interface
3114 get_identifier(RawFormula,_) :-
3115 add_error(tcltk_show_identifier_value_as_dot_tree,'Please provide valid identifier of constant or variable:',RawFormula),
3116 fail.
3117 valid_id(ID) :- b_is_variable(ID).
3118 valid_id(ID) :- b_is_constant(ID).
3119
3120 retrieve_tag_adapted_text_for_id(Id,Value,Tag,RText) :-
3121 retrieve_tag_text_for_id(Id,Value,Tag,Text),
3122 (Text = '[]' -> RText = '[ ]' ; RText=Text). % for some reason the empty sequence translation [] gets transformed into '' by the tcltk library
3123
3124 retrieve_tag_text_for_id(Id,Value,FullTag,Text) :-
3125 retrieve_tag_text(Value,Tag,Text),
3126 (bv_is_explanation_node(Id) -> convert_explain_tag(Tag,FullTag) ; FullTag=Tag).
3127 retrieve_tag_text(i, inac, '').
3128 retrieve_tag_text(e(Text), error, Text).
3129 retrieve_tag_text(v(Text), value, Text).
3130 retrieve_tag_text(p(true), ptrue, true).
3131 retrieve_tag_text(p(false),pfalse, false).
3132 retrieve_tag_text(bv_info(Text), inac, Text).
3133
3134
3135 tcltk_bv_get_unlimited_value(Id,Text,Tag) :-
3136 current_state_id(StateId),
3137 bv_get_value_unlimited(Id,StateId,Value),
3138 retrieve_tag_text_for_id(Id,Value,Tag,Text1),
3139 atom_codes(Text1,Text). % TODO: In the end, the result was converted from codes to atom and back
3140
3141 % a version which returns just the value as an atom:
3142 tcltk_bv_get_unlimited_value_atom(Id,AtomText) :-
3143 current_state_id(StateId),
3144 bv_get_value_unlimited(Id,StateId,Value),
3145 retrieve_tag_text_for_id(Id,Value,_Tag,AtomText).
3146
3147 convert_explain_tag(ptrue,explaintrue).
3148 convert_explain_tag(pfalse,explainfalse).
3149 convert_explain_tag(X,X).
3150
3151 % -----------------------------------------
3152
3153 % STILL TO DO: refactor eval from here and probcli into separate module
3154
3155 :- dynamic eval_elapsed_time/1.
3156 tcltk_time_call(Call) :-
3157 cputime(T1),Call,cputime(T2),ElapsedTime is T2-T1,
3158 retractall(eval_elapsed_time(_)),assertz(eval_elapsed_time(ElapsedTime)).
3159
3160 :- use_module(eval_strings).
3161
3162
3163 tcltk_eval(String,StringResult,EnumWarning,Solution) :-
3164 get_computed_preference(debug_time_out,DTO),
3165 %print(debug_time_out(DTO)),nl,
3166 time_out_with_enum_warning_one_solution(eval_string(String,StringResult,EnumWarning,LocalState),DTO,TimeOutRes),
3167 (LocalState=[] -> Solution='' ; translate_bstate(LocalState,Solution)),
3168 (is_time_out_result(TimeOutRes) ->
3169 StringResult = '**** TIME-OUT ****', print(StringResult), print(' ('),print(DTO), print('ms)'),nl,
3170 EnumWarning = no
3171 ; print_last_info).
3172
3173 :- public tcltk_eval_string_in_cur_state/2.
3174 tcltk_eval_string_in_cur_state(String,TclValue) :-
3175 eval_string_in_cur_state(String,_,Value),
3176 convert_value_to_tcl(Value,TclValue).
3177 convert_value_to_tcl(int(X),R) :- !, R=X.
3178 convert_value_to_tcl(pred_true,R) :- !, R=1.
3179 convert_value_to_tcl(pred_false,R) :- !, R=0.
3180 convert_value_to_tcl(string(X),R) :- !, R=X.
3181 % TO DO: add sets,...
3182 convert_value_to_tcl(R,R) :- print(cannot_convert_to_tcl(R,R)),nl.
3183
3184 eval_string_in_cur_state(String,Typed,Value) :-
3185 %format('Parsing : "~w"~n',[String]),
3186 bmachine:parse_expression_raw_or_atom_with_prob_ids(String,Typed),
3187 current_state_id(CurID), prob2_interface:get_state(CurID,EState),
3188 %print(evaluating_in_state(CurID)),nl,
3189 b_compute_expression_with_prob_ids(Typed,EState,Value).
3190
3191 % code to translate an expression into a list of lists that can be displayed as a table in Tk
3192 % TO DO: make more robust and add more fancy translations
3193 :- use_module(extrasrc(table_tools),[expand_and_translate_to_table_for_expr/5]).
3194 tcltk_eval_as_table(String,Res) :-
3195 eval_string_in_cur_state(String,Typed,Value),
3196 Res = list([list(Header)|Table]),
3197 expand_and_translate_to_table_for_expr(Typed,Value,Header,Table,['no-row-numbers']).
3198
3199 :- use_module(user_interrupts,[interruptable_call/1]).
3200 interruptable_tcltk_eval(String,StringResult,EnumWarning,Solution) :-
3201 if(interruptable_call(tcltk_eval(String,StringResult,EnumWarning,Solution)),true,
3202 (StringResult = 'Error or User-Interrupt', EnumWarning=unknown, Solution='')).
3203
3204 % -----------------------------------------
3205
3206 % Options can be a singleton list with: prefix, exact, suffix, fuzzy
3207 tcltk_find_value_as_table(String,Options,list([Header|Matches])) :-
3208 eval_string_in_cur_state(String,Typed,GoalValue),
3209 Header = list(['ID','Kind','MatchPath']),
3210 get_texpr_type(Typed,Type),
3211 findall(list([ID,Kind,MatchMsg]),
3212 (find_value_in_cur_state(GoalValue,Type,Options,match(Kind,ID,PathObj)),
3213 translate_bvalue_with_limit(PathObj,1000,PathS),
3214 atom_codes(PathS,MatchMsgC),
3215 format('* match inside ~w ~w @ path: ~w~n',[Kind,ID,PathS]),
3216 atom_codes(MatchMsg,MatchMsgC)),Matches).
3217
3218 % find a given value somewhere in a constant or variable value
3219
3220 find_value_in_cur_state(GoalValue,Type,Options,match(Kind,ID,PathObj)) :-
3221 translate:translate_bvalue(GoalValue,VS),
3222 get_current_state_for_b_formula(requires_variables,State), % produce full state
3223 member(bind(ID,Value),State),
3224 ( bmachine:b_is_variable(ID,IDType), Kind=variable
3225 ; bmachine:b_is_constant(ID,IDType), Kind=constant),
3226 debug_format(19,'Searching id ~w for ~w~n',[ID,VS]),
3227 % TODO check if Type occurs in type of ID
3228 find_value(Value,IDType,GoalValue,Type,Options,PathObj).
3229
3230
3231 :- use_module(probsrc(kernel_freetypes),[registered_freetype/2]).
3232 :- use_module(bsyntaxtree,[is_set_type/2]).
3233 :- use_module(kernel_strings,[to_b_string/2]).
3234 find_value(Val,Type,GoalVal,Type,Options,Path) :- !, % target and goal type match; to do: unify_types
3235 (kernel_objects:equal_object(Val,GoalVal) -> Path = term('$MATCH')
3236 ; fuzzy_find_value(Val,Type,GoalVal,Type,Options,Path)).
3237 find_value((A,B),couple(TA,TB),GoalVal,Type,Options,Path) :- !,
3238 ( find_value(A,TA,GoalVal,Type,Options,PA),
3239 Path=','(PA,B)
3240 ; find_value(B,TB,GoalVal,Type,Options,PB),
3241 Path=','(A,PB)).
3242 find_value(rec(Fields),record(FieldTypes),GoalVal,Type,Options,rec([field(Field,Path)])) :- !,
3243 member(field(Field,Val),Fields),
3244 member(field(Field,TVal),FieldTypes),
3245 find_value(Val,TVal,GoalVal,Type,Options,Path).
3246 find_value(avl_set(AVL),AType,GoalVal,Type,Options,[Path]) :- !,
3247 is_set_type(AType,TA),
3248 custom_explicit_sets:avl_member_opt(Value,AVL), % TODO: provide a more proper interface predicate
3249 find_value(Value,TA,GoalVal,Type,Options,Path).
3250 find_value([H|T],set(TA),GoalVal,Type,Options,[Path]) :- !,
3251 member(Value,[H|T]),
3252 find_value(Value,TA,GoalVal,Type,Options,Path).
3253 find_value(freeval(ID,Case,Val),freetype(ID),GoalVal,Type,Options,freeval(Case,Path)) :- !,
3254 (registered_freetype(ID,Cases),
3255 member(case(Case,TVal),Cases) -> true
3256 ; add_error(find_value,'Illegal freeval:',freeval(ID,Case,Val)),fail
3257 ),
3258 find_value(Val,TVal,GoalVal,Type,Options,Path).
3259 find_value(Val,TypeVal,GoalVal,Type,Options,Path) :-
3260 fuzzy_find_value(Val,TypeVal,GoalVal,Type,Options,Path).
3261
3262 fuzzy_find_value(Val,_Type,string(GoalAtom),string,[Option|_],term('$FUZZYMATCH'(TargetAtom))) :-
3263 GoalAtom \= '',
3264 simple_value_to_match(Val),
3265 to_b_string(Val,string(TargetAtom)),
3266 find_match_string(Option,TargetAtom,GoalAtom).
3267
3268 simple_value_to_match(fd(_,_)).
3269 simple_value_to_match(string(_)).
3270 simple_value_to_match(int(_)).
3271 simple_value_to_match(term(_)).
3272 simple_value_to_match(freeval(_,_Case,Val)) :- ground(Val), Val=term(_).
3273
3274 :- use_module(tools_matching,[fuzzy_match_codes_lower_case/2]).
3275
3276 % check whether TargetAtom matches GoalAtom given match option
3277 find_match_string(exact,GoalAtom,GoalAtom).
3278 find_match_string(prefix,TargetAtom,GoalAtom) :-
3279 atom_concat(GoalAtom,_,TargetAtom). % use sub_atom ?
3280 find_match_string(suffix,TargetAtom,GoalAtom) :-
3281 atom_concat(_,GoalAtom,TargetAtom).
3282 find_match_string(infix,TargetAtom,GoalAtom) :-
3283 sub_atom(TargetAtom,_Before,Length,_After,GoalAtom), Length>0.
3284 find_match_string(fuzzy,TargetAtom,GoalAtom) :-
3285 atom_codes(TargetAtom,TC),
3286 atom_codes(GoalAtom,GC),
3287 fuzzy_match_codes_lower_case(TC,GC).
3288 % TODO: regex
3289
3290
3291 :- use_module(prob2_interface, [get_possible_completions/3]).
3292 % ID can be col$, svg$, ... (TODO: maybe pass category names directly ? svg_colors_only, ...)
3293 tcltk_get_possible_completions(ID,list(Completions)) :-
3294 get_possible_completions(ID,[],L),
3295 findall(C,member(completion(C,_Category),L),CL),
3296 sort(CL,Completions).
3297
3298 % -----------------------------------------
3299 % B Simplifier
3300 :- use_module(probporsrc(b_simplifier),[tcltk_simplify_b_predicate/2]).
3301 tcltk_simplify_predicate(String,StringResult) :-
3302 tcltk_simplify_b_predicate(String,StringResult).
3303
3304
3305 % -----------------------------------------
3306 % CBC Check
3307
3308 get_cbc_data_base_id_checks(IDs) :-
3309 findall(ID,b_state_model_check: cbc_check(ID,_Text,_Call,_Res,_Ok),IDs).
3310 get_cbc_data_base_text_checks(Strings) :-
3311 findall(Text1,(b_state_model_check: cbc_check(_ID,Text,_Call,_Res,_Ok),tools: string_concatenate(Text,';',Text1)),Strings).
3312
3313
3314 % -----------------------------------------
3315
3316 % CSP Refinement Search
3317
3318 %:- dynamic tcltk_cspm_mode/0.
3319 %set_tcltk_cspm_mode :- assertz(tcltk_cspm_mode).
3320 %unset_tcltk_cspm_mode :- retractall(tcltk_cspm_mode).
3321
3322
3323 %get_new_csp_process_id(E,File,ID) :-
3324 % ( parse_single_csp_expression_file(E,File,Proc) ->
3325 % haskell_csp: check_compiled_term(Proc), add_csp_process_id1(Proc,ID,haskell_csp:animatable_process)
3326 % ; add_error(parse_single_csp_expression_file,'Invalid process expression: ',E),fail
3327 % ).
3328
3329 %parse_and_analyze_process_expression(ProcExp,File,Proc) :-
3330 % ( parse_single_csp_expression_file(ProcExp,File,Proc) -> true
3331 % ; add_error(parse_single_csp_expression_file,'Invalid process expression: ',ProcExp),fail
3332 % ).
3333
3334 get_csp_process_id(Process,ID) :- get_start_transition_term(Process,Trans),
3335 transition(root,Trans,ID).
3336
3337 :- use_module(probcspsrc(haskell_csp),[animatable_process_without_arguments/1,animatable_process_cli/1]).
3338 add_csp_process_id(Process,NewID) :-
3339 add_csp_process_id1(Process,NewID,animatable_process_cli).
3340
3341 add_csp_process_id1(Process,NewID,Pred) :-
3342 (call(Pred,Process)
3343 -> get_start_transition_term(Process,Trans),
3344 (transition(root,Trans,_,DestID) -> NewID=DestID % process already set up
3345 ; xtl_interface:get_start_expr(Process,NewState),
3346 add_trans_id(root,Trans,NewState,NewID,_)
3347 )
3348 ; add_error_fail(add_csp_process_id,'Not an animatable CSP Process: ',Process)).
3349
3350 get_start_transition_term('MAIN',R) :- !, R= start_cspm_MAIN.
3351 get_start_transition_term(agent_call(_Src,'MAIN',[]),R) :- !, R= start_cspm_MAIN.
3352 get_start_transition_term(P,start_cspm(P)).
3353
3354 add_csp_general_process_id(val_of(Process,_),ID) :- !,
3355 ( animatable_process_without_arguments(Process) % in case the called processes is one without arguments, then we don't have to parse the expression
3356 -> add_csp_process_id(Process,ID)
3357 % code below not covered; loaded_main_file only defined for probcli entry point !
3358 %; animation_mode(cspm),
3359 % loaded_main_file(CSPFile),
3360 % parse_and_analyze_process_expression(Process,CSPFile,Proc),
3361 % (transition(root,start_cspm(Proc),_TransID,ID) -> true
3362 % ; otherwise -> add_trans_id(root,start_cspm(Proc),Proc,ID,_)
3363 % )
3364 ).
3365 add_csp_general_process_id(GenProcExpr,ID) :-
3366 % stripping out the source-loc info
3367 haskell_csp_analyzer: clear_span(GenProcExpr,GenProcExpr1),
3368 get_start_transition_term(GenProcExpr1,Trans),
3369 ? (transition(root,Trans,_TransID,ID)
3370 -> true
3371 ; add_trans_id(root,Trans,GenProcExpr1,ID,_)
3372 ).
3373
3374 :- public tcltk_csp_in_situ_refinement/4.
3375 tcltk_csp_in_situ_refinement(ImplProcess,AbsProcess,ResTrace,Style) :-
3376 format('Checking ~w ~w ~w~n',[AbsProcess,Style,ImplProcess]),
3377 tcltk_csp_in_situ_refinement(ImplProcess,AbsProcess,ResTrace,Style,10000000).
3378 csp_ref_style('[T=',trace). % Trace Refinement
3379 csp_ref_style('T',trace). % Trace Refinement
3380 csp_ref_style('[SF=',singleton_failures). % Singleton Failures Refinement
3381 csp_ref_style('[F=',failures). % Failures Refinement
3382 csp_ref_style('[R=',refusals). % Refusals Refinement
3383 csp_ref_style('[RD=',refusals_div). % Refusals-Divergence Refinement
3384 csp_ref_style('F',failures). % Failures Refinement
3385 csp_ref_style('[FD=',X) :- csp_ref_style('FailureDivergence',X).
3386 csp_ref_style('FD',X) :- csp_ref_style('FailureDivergence',X).
3387 csp_ref_style('Trace',trace).
3388 csp_ref_style('Failure',failures).
3389 csp_ref_style('FailureDivergence',failure_divergences).
3390 csp_ref_style('RefusalTesting',refusals).
3391 csp_ref_style('RefusalTestingDiv',refusals_div).
3392 csp_ref_style('RevivalTesting',revival) :- add_error(unsupported_refinement_operator,'[V= refinement not yet supported.').
3393 csp_ref_style('RevivalTestingDiv',revival_div) :- add_error(unsupported_refinement_operator,'[VD= refinement not yet supported.').
3394
3395 translate_csp_ref_style(Style,RefStyle) :- (csp_ref_style(Style,RefStyle) -> true ;
3396 add_error_fail(csp,'Unknown refinement style: ',Style)).
3397
3398 :- use_module(extrasrc(refinement_checker),[in_situ_ref_search/5]).
3399
3400 % tcltk_csp_in_situ_refinement('P','Q',R,0,1000). tcltk_csp_in_situ_refinement('Q','P',R,1000).
3401 tcltk_csp_in_situ_refinement(ImplProcess,AbsProcess,ResTrace,Style,MaxNrOfNewNodes) :-
3402 add_csp_process_id(ImplProcess,ImplNodeID),
3403 add_csp_process_id(AbsProcess,SpecNodeID),
3404 translate_csp_ref_style(Style,RefStyle),
3405 in_situ_ref_search(ImplNodeID,SpecNodeID,ResTrace,RefStyle,MaxNrOfNewNodes).
3406
3407 :- use_module(probcspsrc(haskell_csp),[get_csp_assertions/1,translate_csp_assertion/2]).
3408
3409 tcltk_check_csp_assertions(List,Summary) :- get_csp_assertions(Assertions),
3410 treat_csp_ass(Assertions,List,0,0,0,Summary). % TO DO: display _List
3411
3412 treat_csp_ass([],[],T,F,U,[total/Tot, true/T, false/F, unknown/U]) :- Tot is T+F+U.
3413 treat_csp_ass([Assertion|T],['='(PP,Ok)|TPP],True,False,U,Summary) :- !,
3414 (checkAssertion(Assertion,PP,_,Ok,_)
3415 -> ( Ok=true -> T1 is True+1, F1=False, U1=U
3416 ; Ok=false -> T1=True, F1 is False+1, U1=U
3417 ; T1=True, F1=False, U1 is U+1)
3418 ; U1 is U+1, T1=True, PP = '??',
3419 F1=False,Ok=unknown
3420 ),
3421 treat_csp_ass(T,TPP,T1,F1,U1,Summary).
3422 treat_csp_ass([H|T],TP,T1,F1,U,Summary) :-
3423 add_error(treat_csp_ass,'Unknown CSP assertion: ',H),
3424 U1 is U+1, treat_csp_ass(T,TP,T1,F1,U1,Summary).
3425
3426 % assertModelCheckExt(False,val_of(P3,src_span(25,8,25,10,562,2)),DeadlockFree,F)
3427
3428 :- use_module(extrasrc(refinement_checker),[in_situ_model_check/5, reset_refinement_checker/0]).
3429
3430 run_assertion_check(assertModelCheckExt(Negated,Spec,Type,ModelStyle),Negated,ResTrace) :-
3431 ? haskell_csp_analyzer: compile_body(Spec,'assertModelCheck',[],[],CSpec),
3432 debug_println(9,assertModelCheckExt(Negated,CSpec,Type,ModelStyle)),
3433 add_csp_general_process_id(CSpec,SpecNodeID),
3434 translate_csp_ref_style(ModelStyle,RefStyle),
3435 in_situ_model_check(SpecNodeID,ResTrace,Type,RefStyle,10000000),
3436 formatsilent('Result trace for assertModelCheck: ~w~n',[ResTrace]).
3437 run_assertion_check(assertModelCheck(Negated,Spec,Style),Negated,ResTrace) :-
3438 ? run_assertion_check(assertModelCheckExt(Negated,Spec,Style,'FailureDivergence'),Negated,ResTrace).
3439 run_assertion_check(assertRef(Negated,Spec,Style,Impl,Span),Negated,ResTrace) :-
3440 ? haskell_csp_analyzer: compile_body(Spec,'assertRef',[],[],CSpec),
3441 ? haskell_csp_analyzer: compile_body(Impl,'assertRef',[],[],CImpl),
3442 debug_println(9,assertRef(Negated,CSpec,Style,CImpl,Span)),
3443 add_csp_general_process_id(CSpec,SpecNodeID),
3444 add_csp_general_process_id(CImpl,ImplNodeID),
3445 translate_csp_ref_style(Style,RefStyle),
3446 refinement_checker:in_situ_ref_search(ImplNodeID,SpecNodeID,ResTrace,RefStyle,10000000).
3447 run_assertion_check(assertLtl(Negated,Spec,FormulaAsAtom,_Span),Negated,ResTrace) :-
3448 add_csp_process_id_normalized(Spec,'assertLtl',CSpec,CSpecNodeID),
3449 %% print(add_csp_general_process_id(Spec,CSpec,SpecNodeID)),nl,
3450 tcltk_reset,
3451 ltl_model_check_with_ce1(CSpec,FormulaAsAtom,-1,specific_node(CSpecNodeID),Result),
3452 translate_ltl_result(Result,ResTrace),
3453 debug_println(9,ltl_result(Negated,CSpec,CSpecNodeID,FormulaAsAtom,Result)).
3454 run_assertion_check(assertCtl(Negated,Spec,FormulaAsAtom,_Span),Negated,ResTrace) :-
3455 add_csp_process_id_normalized(Spec,'assertCtl',CSpec,CSpecNodeID),
3456 tcltk_reset,
3457 ctl_model_check_with_ce(CSpec,FormulaAsAtom,-1,specific_node(CSpecNodeID),Result,Trace),
3458 debug_println(9,ctl_result(Negated,CSpec,CSpecNodeID,FormulaAsAtom,Result)),
3459 translate_ctl_result(Result,Trace,ResTrace).
3460
3461 checkAssertion(Assertion,PP,Negated,Ok,ResTrace) :-
3462 translate_csp_assertion(Assertion,PP),
3463 formatsilent('CHECKING ~w~n',[PP]),
3464 debug_println(9,checkAssertion(Assertion)),
3465 reset_refinement_checker,
3466 ? (run_assertion_check(Assertion,Negated,ResTrace)
3467 -> debug_println(9,result(ResTrace)),
3468 (ResTrace=no_counter_example
3469 -> (Negated = 'False' -> Ok=true ; Ok=false)
3470 ; ResTrace=no_counter_example_found
3471 -> Ok=interrupted
3472 ; ResTrace=[interrupted|_]
3473 -> Ok=interrupted, print('*** Execution interrupted by user ***'),nl
3474 ; Negated = 'False' -> Ok=false
3475 ; Ok=true
3476 ),
3477 (Ok=true -> printsilent('OK'),nls
3478 ; Ok=interrupted -> print('*** UNKNOWN ***'),nl
3479 ; print('*** FALSE ***'),nl
3480 )
3481 ; add_error_fail(checkAssertion,'Internal Error, Assertion Checking Failed for: ',PP)
3482 ).
3483
3484 add_csp_process_id_normalized(Spec,Functor,CSpec,CSpecNodeID) :-
3485 % stripping out the src_span info
3486 haskell_csp_analyzer: clear_span(Spec,SpecNoSpan),
3487 haskell_csp_analyzer: compile_body(SpecNoSpan,Functor,[],[],CSpec),
3488 add_csp_general_process_id(CSpec,CSpecNodeID).
3489
3490 translate_ltl_result(ok,Res) :- !,
3491 Res = no_counter_example.
3492 translate_ltl_result(no,Res) :- !,
3493 Res = no.
3494 translate_ltl_result(ce(Atom),Res) :-
3495 !, % we have a counter-example for the LTL formula
3496 Res=Atom.
3497 translate_ltl_result(interrupted,Res) :-
3498 !,
3499 Res=[interrupted].
3500 translate_ltl_result(Status,_Res) :-
3501 add_error_fail(ltl_assertions_result, 'Internal Error: unknown LTL assertion result ', Status).
3502
3503 translate_ctl_result(true,_Trace,ResTrace) :- !,
3504 ResTrace = no_counter_example.
3505 translate_ctl_result(false,ce(Atom),ResTrace) :- !,
3506 ResTrace = Atom.
3507 translate_ctl_result(interrupted,_TRace,ResTrace) :-
3508 !,
3509 ResTrace=[interrupted].
3510 translate_ctl_result(Status,_Trace,_ResTrace) :-
3511 add_error_fail(ctl_assertions_result, 'Internal Error: unknown CTL assertion result ', Status).
3512
3513
3514 tcltk_check_csp_assertion(Assertion,CSPFile,Negated,Result) :-
3515 tcltk_check_csp_assertion(Assertion,CSPFile,Negated,_PlTerm,Result).
3516
3517 tcltk_check_csp_assertion(Assertion,CSPFile,Negated,PlTerm,Result) :-
3518 parse_single_csp_declaration(Assertion,CSPFile,PlTerm),
3519 checkAssertion(PlTerm,_PP,Negated,_Ok,Result).
3520
3521 :- public tcltk_play_ltl_ctl_counterexample_trace/4.
3522 tcltk_play_ltl_ctl_counterexample_trace(Assertion,CSPFile,Type,FairnessChecked) :-
3523 announce_event(play_counterexample),
3524 ( Type == ltl -> Functor = assertLtl
3525 ; Type == ctl -> Functor = assertCtl
3526 ; add_error_fail(ltl_ctl_counterexample, 'Internal Error: Model checker type unknown: ',Type)),
3527 % constructing the prolog declaration term
3528 PlDeclTerm =.. [Functor,_Negated,Spec,FormulaAsAtom,_Span],
3529 parse_single_csp_declaration(Assertion,CSPFile,PlDeclTerm),
3530 haskell_csp_analyzer: clear_span(Spec,SpecNoSpan),
3531 haskell_csp_analyzer: compile_body(SpecNoSpan,'assertLtl',[],[],CSpec),
3532 % parsing and preprocessing the LTL/CTL formula
3533 parse_and_preprocess_formula(FormulaAsAtom,Type,PF),
3534 (is_fairness_implication(PF) -> FairnessChecked='yes'; FairnessChecked='no'),
3535 % need to reset history and current state before loading the counter-example
3536 tcltk_reset,
3537 tcltk_play_counterexample(Type,CSpec,PF).
3538
3539 tcltk_play_counterexample(ltl,Spec,Formula) :- !,
3540 tcltk_play_ltl_counterexample(Spec,Formula).
3541 tcltk_play_counterexample(ctl,Spec,Formula) :- !,
3542 tcltk_play_ctl_counterexample(Spec,Formula).
3543 tcltk_play_counterexample(Type,Spec,Formula) :-
3544 add_error_fail(ltl_ctl_counterexample, 'Internal Error: Unknown domain type: ', (Type,Spec,Formula)).
3545
3546 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3547
3548
3549 %%%% Parse and get LTL formulas from LTL File %%%%
3550 get_ltl_formulas_from_file(Filename,Text) :-
3551 parse_ltlfile(Filename, Formulas), print(Formulas),nl,
3552 translate_ltl_formulas(Formulas,Text).
3553
3554 translate_ltl_formulas(Formulas,Text) :-
3555 maplist(translate_ltl_formula,Formulas,Strings),
3556 haskell_csp: concatenate_string_list(Strings,Text).
3557
3558 translate_ltl_formula(formula(_Name,Formula),Text) :- !,
3559 pp_ltl_formula(Formula,T),
3560 string_concatenate(T,'$',Text).
3561 translate_ltl_formula(F,'') :- add_error(get_ltl_formulas_from_file,'Illegal formula: ',F).
3562
3563
3564 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3565
3566
3567 tcltk_explore_csp_process(ProcString,SpecNodeID) :-
3568 haskell_csp: parse_single_csp_expression(ltl,ProcString,Res),
3569 haskell_csp_analyzer: clear_span(Res,ResNoSpan),
3570 haskell_csp_analyzer: compile_body(ResNoSpan,'assertLtl',[],[],CRes),
3571 add_csp_general_process_id(CRes,SpecNodeID),
3572 refinement_checker:dfs_check(SpecNodeID,_ResTrace,false,false).
3573
3574 tcltk_visualize_csp_process(SpecNodeID,F) :-
3575 visualize_graph: tcltk_print_csp_process_states_for_dot(F,SpecNodeID).
3576
3577 :- dynamic nr_csp_process_state/1.
3578 get_csp_process_stats(NrNodes) :-
3579 assertz(nr_csp_process_state(0)),
3580 count_nodes,
3581 nr_csp_process_state(NrNodes),
3582 retractall(nr_csp_process_state(_)).
3583
3584 count_nodes :-
3585 refinement_checker: dvisited(_NodeID),
3586 nr_csp_process_state(NrNodes),
3587 NewNrNodes is NrNodes +1,
3588 retractall(nr_csp_process_state(_)),
3589 assertz(nr_csp_process_state(NewNrNodes)),
3590 fail.
3591 count_nodes.
3592
3593 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3594
3595 tcltk_machine_has_assertions :-
3596 ( b_get_static_assertions_from_machine([_|_]); b_get_dynamic_assertions_from_machine([_|_]) ), !.
3597
3598 tcltk_unique_top_level_operation(Name) :- b_top_level_operation(Name),
3599 \+ (b_top_level_operation(N2), N2 \= Name).
3600
3601 tcltk_top_level_operations(list(Res)) :-
3602 findall(Name,b_top_level_operation(Name),Names),
3603 length(Names,L),
3604 (L>5 -> sort(Names,Res) ; Res=Names).
3605
3606 tcltk_get_vacuous_guards(list(L)) :-
3607 eclipse_interface:get_vacuous_guards(LP), % to do: add source column
3608 (LP=[] -> L = ['No vacuous guards']
3609 ; L = [list(['VACUOUS GUARDS'])|L1],
3610 findall(list([P]), member(P,LP), L1)
3611 ).
3612
3613 tcltk_get_vacuous_invariants(list(L)) :-
3614 eclipse_interface:get_vacuous_invariants(LP),
3615 (LP=[] -> L = ['No vacuous invariants']
3616 ; L = [list(['VACUOUS INVARIANTS'])|L1],
3617 findall(list([TP]), (member(P,LP), translate_bexpression(P,TP)), L1)
3618 ).
3619
3620 tcltk_get_vacuous_invariants_table(list([list(['LHS','Op','RHS','Source'])|L])) :-
3621 eclipse_interface:get_vacuous_invariants(LP),
3622 LP \= [], !,
3623 maplist(get_expr_and_source,LP,L).
3624 tcltk_get_vacuous_invariants_table(list(['No vacuous invariants'])).
3625
3626 :- use_module(translate,[translate_bexpression_with_limit/3]).
3627 :- use_module(error_manager,[get_tk_table_position_info/2]).
3628 get_expr_and_source(P,list([TS1,Op,TS2,Src])) :-
3629 decompose(P,LHS,Op,RHS),
3630 translate_bexpression_with_limit(LHS,150,TS1),
3631 translate_bexpression_with_limit(RHS,60,TS2),
3632 get_tk_table_position_info(P,Src).
3633
3634 decompose(b(implication(LHS,RHS),pred,_),LHS,'=>',RHS) :- !.
3635 decompose(b(disjunction(LHS,RHS),pred,_),LHS,'or',RHS) :- !.
3636 decompose(LHS,LHS,'?',b(truth,pred,[])).
3637
3638
3639 % -------------------
3640
3641
3642 :- use_module(extrasrc(mcts_game_play), [mcts_auto_play/4, mcts_auto_play_available/0]).
3643
3644 tcltk_mcts_auto_play :- tcltk_mcts_auto_play(_).
3645 tcltk_mcts_auto_play(TransID) :-
3646 mcts_auto_play_available,
3647 current_state_id(CurID),
3648 mcts_auto_play(CurID,ActionAsTerm,TransID,State2),
3649 (tcltk_perform_action(CurID,ActionAsTerm,TransID,State2)
3650 -> true
3651 ; add_error(tcltk_mcts_auto_play,'Cannot perform chosen action:',ActionAsTerm),fail).
3652
3653
3654 % -----------------------
3655
3656
3657 :- dynamic current_simb_state/1, simb_history/5.
3658
3659 :- use_module(extrasrc(simb_parser)).
3660 :- use_module(extrasrc(simb_simulator)).
3661
3662 tcltk_start_simulation :-
3663 retractall(current_simb_state(_)),
3664 retractall(simb_history(_,_,_,_,_)),
3665 simb_file_loaded(_),!,
3666 tcltk_reset,
3667 simb_initial_state(Init),
3668 assert(current_simb_state(Init)).
3669 tcltk_start_simulation :- add_error(simb,'Cannot start simulation, no SimB file loaded').
3670
3671 % Options: visible, stop_if_time_progresses, stop_if_time_exceeds(T)
3672 tcltk_peform_simulation_steps(Nr,ResElapsedTime,StopReason,Opts) :- \+ current_simb_state(_),!,
3673 tcltk_start_simulation,
3674 tcltk_peform_simulation_steps2(1,0,Nr,ResElapsedTime,StopReason,Opts).
3675 tcltk_peform_simulation_steps(Nr,ResElapsedTime,StopReason,Opts) :-
3676 tcltk_peform_simulation_steps2(1,0,Nr,ResElapsedTime,StopReason,Opts).
3677
3678 tcltk_peform_simulation_steps2(CurStepNr,ElapsedTime,MaxNr,ResElapsedTime,StopReason,Opts) :-
3679 stop_simulation(CurStepNr,ElapsedTime,MaxNr,StopReason,Opts), !,
3680 (debug_mode(off) -> true
3681 ; format('Stop simulation at step ~w after ~w ms~n',[CurStepNr,ElapsedTime]),
3682 current_simb_state(State), portray_simb_state(State)),
3683 ResElapsedTime = ElapsedTime.
3684 tcltk_peform_simulation_steps2(CurStepNr,ElapsedTime,MaxNr,ResElapsedTime,StopReason,Opts) :-
3685 (tcltk_peform_simulation_step(Delta,Opts)
3686 -> N1 is MaxNr-1,
3687 C1 is CurStepNr+1, E1 is ElapsedTime+Delta,
3688 tcltk_peform_simulation_steps2(C1,E1,N1,ResElapsedTime,StopReason,Opts)
3689 ; % Simulation is deadlocked
3690 ResElapsedTime = ElapsedTime,
3691 StopReason = deadlock,
3692 add_warning(simb,'Simulation is deadlocked at step nr: ',CurStepNr)
3693 %,current_simb_state(State), portray_simb_state(State)
3694 ).
3695
3696 stop_simulation(_,_,Nr,max_steps_reached,_Opts) :- Nr =< 0.
3697 stop_simulation(CurStepNr,_,_Nr,time_progresses,Opts) :- CurStepNr>1,
3698 member(stop_if_time_progresses,Opts),
3699 current_simb_state(State),
3700 get_simb_delay_until_next_step(State,Delta),
3701 Delta > 0.
3702 stop_simulation(_,ElapsedTime,_Nr,max_time_exceeded,Opts) :-
3703 member(stop_if_time_exceeds(MaxTime),Opts),
3704 ElapsedTime > MaxTime.
3705
3706 tcltk_peform_simulation_step(Delta,Opts) :-
3707 current_state_id(CurID), % todo: assert/retract in tcltk_peform_simulation_steps
3708 retract(current_simb_state(State)),!,
3709 simb_update_current_state_id(State,CurID,State2),
3710 (simb_perform_step(Opts,State2, TransID, Delta, Probability,NewSimBState)
3711 -> true
3712 ; assert(current_simb_state(State2)),
3713 fail
3714 ),
3715 assert(current_simb_state(NewSimBState)),
3716 save_last_simulation_step(State2,TransID,Delta,Probability),
3717 (TransID=none -> true
3718 ; tcltk_perform_action(CurID,_,TransID,_)
3719 -> true % TODO: add time and maybe activation id store_transition_infos(TransInfo,TransID)
3720 ; add_error(simb,'Cannot perform chosen transition:',TransID),fail).
3721
3722 % save last simulation state and the transition that was performed from it
3723 save_last_simulation_step(LastSimBState,TransID,Delta,Probability) :-
3724 tcltk_get_simb_history_length(Len), L1 is Len+1,
3725 asserta(simb_history(L1,TransID,Delta,Probability,LastSimBState)).
3726
3727 tcltk_get_simb_history_length(Len) :- simb_history(Len,_,_,_,_),!.
3728 tcltk_get_simb_history_length(0).
3729
3730 % try and go back one simulation step
3731 tcltk_backtrack_simulation_step :-
3732 retract(simb_history(_,TransID,_Delta,_Prob,LastSimBState)),
3733 get_simb_current_state_id(LastSimBState,LastCurID),
3734 (TransID = none -> true
3735 ; tcltk_can_backtrack_to_state_id(LastCurID) -> tcltk_backtrack
3736 ; add_warning(simb,'Animator and simulator not synchronised, cannot step back in animator to state, : ',LastCurID)
3737 ),
3738 retract(current_simb_state(_)), % TODO: add to forward history
3739 assert(current_simb_state(LastSimBState)).
3740
3741 tcltk_can_backtrack_simulation_step :-
3742 simb_history(_,TransID,_Delta,_Prob,LastSimBState),
3743 (TransID=none -> true
3744 ; get_simb_current_state_id(LastSimBState,LastCurID),
3745 tcltk_can_backtrack_to_state_id(LastCurID)).
3746
3747 tk_get_simb_history_entry([Step,Time,Delta,ProbS,ActID,ActionString]) :-
3748 simb_history(Step,TransID,Delta,Prob,LastSimBState),
3749 (Prob=none -> ProbS = 'det' ; ProbS = Prob),
3750 get_simb_current_state_id(LastSimBState,CurID),
3751 translate_event_from_src_and_target_id(CurID,TransID,ActionString),
3752 get_simb_time(LastSimBState,Time),
3753 get_simb_next_activation_term(LastSimBState,ActID,_Params). % TODO: extract number of activations, ...
3754
3755 translate_event_from_src_and_target_id(_,none,ActionString) :- !, ActionString='-'.
3756 translate_event_from_src_and_target_id(CurID,TransID,ActionString) :-
3757 transition(CurID,ActionAsTerm,TransID,NewID),
3758 translate_event_with_src_and_target_id(ActionAsTerm,CurID,NewID,40,ActionString).
3759
3760 tk_get_simb_history_table(list([list(['Step','Time','Delta','Probability','ActivationID','VisibleEvent'])|RList])) :-
3761 findall(list(EntryList),tk_get_simb_history_entry(EntryList),List),
3762 reverse(List,RList).
3763
3764 simb_perform_step(Opts,State, TransID, Delta, Probability, NewSimBState) :- member(visible,Opts),!,
3765 simb_perform_visible_step(State, TransID, Delta, Probability, NewSimBState).
3766 simb_perform_step(_,State, TransID, Delta, Probability, NewSimBState) :-
3767 simb_perform_step(State, TransID, Delta, Probability, NewSimBState).
3768
3769 tcltk_delay_until_next_step(Time) :-
3770 current_simb_state(State), !, get_simb_delay_until_next_step(State,Time).
3771 tcltk_delay_until_next_step(0).
3772
3773 tcltk_simulation_time(Time) :-
3774 current_simb_state(State), !, get_simb_time(State,Time).
3775 tcltk_simulation_time('-').
3776
3777 tk_get_simb_scheduling_table_stats(Info) :-
3778 current_simb_state(State), !, get_simb_scheduling_table_info(State,Info).
3779 tk_get_simb_scheduling_table_stats('-').
3780
3781
3782 tk_get_simb_scheduling_table(list([list(['Time(ms)','Prio','ActivationID','Params'])|List])) :-
3783 current_simb_state(State),!, %simb_simulator:portray_simb_state(State),nl,
3784 findall(list([Time,Prio,ID,ParamStr]),(get_simb_scheduling_entry(State,Time,Prio,ID,Params),
3785 get_simb_params(Params,ParamStr)),List).
3786 tk_get_simb_scheduling_table(list(['Simulation Not Started'])).
3787
3788 get_simb_params([],Res) :- !, Res='-'.
3789 get_simb_params(List,ParamString) :-
3790 get_param_tokens(List,Tokens), ajoin(Tokens,ParamString).
3791
3792 % note we could use translate_bstate_limited; but it inserts spaces/newlines
3793 :- use_module(probsrc(translate), [translate_bvalue_with_limit/3]).
3794 get_param_tokens([],[]).
3795 get_param_tokens([bind(Name,Val)],[Name,'=',ValS]) :- !,
3796 translate_bvalue_with_limit(Val,20,ValS).
3797 get_param_tokens([bind(Name,Val)|T],[Name,'=',ValS,','|TT]) :-
3798 translate_bvalue_with_limit(Val,20,ValS),
3799 get_param_tokens(T,TT).
3800
3801 tk_get_simb_activations(list([list(['ActivationID','Prio','Kind','After','TransSelection','Guard','Execute'])|List])) :-
3802 simb_file_loaded(_),!,
3803 findall(list([ID,PrioS,ActKind,AftS,TransSelection,Gs,ExList]),
3804 (simb_activation(ID,Prio,ActKind),
3805 simb_activation_effect(ID,Execute,AddGuard,TransSelection,After,_ActivationList),
3806 get_simb_number_as_str(After,20,AftS),
3807 get_simb_number_as_str(Prio,20,PrioS),
3808 ajoin_with_sep(Execute,',',ExList),
3809 translate_bexpression_with_limit(AddGuard,20,Gs)),List).
3810 tk_get_simb_activations(list(['Simulation Not Loaded'])).
3811
3812 get_simb_number_as_str(After,Lim,AftS) :-
3813 (number(After) -> AftS = After ; translate_bexpression_with_limit(After,Lim,AftS)).
3814
3815 % for reacting to clicks in tk_get_simb_activations
3816 tk_get_simb_activation_details(Nr,ID,list([list(['Attribute','Value'])|Details])) :-
3817 findall(ID, simb_activation(ID,_Prio,_ActKind), List),
3818 nth1(Nr,List,ID),
3819 findall(list([Attr,Val]),describe_activation(ID,Attr,Val),Details).
3820
3821 :- use_module(probsrc(bsyntaxtree), [def_get_texpr_id/2]).
3822
3823 describe_activation(ID,id,ID).
3824 describe_activation(ID,param,Para) :-
3825 simb_activation_params(ID,TParams),
3826 member(TID,TParams), def_get_texpr_id(TID,ParaID),
3827 get_texpr_type(TID,Type), pretty_type(Type,String),
3828 ajoin([ParaID,' : ',String],Para).
3829 describe_activation(ID,priority,PrioS) :-
3830 simb_activation(ID,Prio,_ActKind),get_simb_number_as_str(Prio,150,PrioS).
3831 describe_activation(ID,activationKind,ActKind) :- simb_activation(ID,_Prio,ActKind).
3832 describe_activation(ID,additionalGuard,Gs) :-
3833 simb_activation_effect(ID,_,AddGuard,_,_After,_),translate_bexpression_with_limit(AddGuard,150,Gs).
3834 describe_activation(ID,after,AfterS) :-
3835 simb_activation_effect(ID,_,_,_,After,_),get_simb_number_as_str(After,150,AfterS).
3836 describe_activation(ID,execute,OpName) :-
3837 simb_activation_effect(ID,Execute,_,_TransSelect,_After,_), member(OpName,Execute).
3838 describe_activation(ID,transitionSelection,TransSelect) :-
3839 simb_activation_effect(ID,_,_,TransSelect,_After,_).
3840 describe_activation(ID,activating,Activating) :-
3841 simb_activation_effect(ID,_,_,_TransSelect,_After,ActivatingList),
3842 member(A,ActivatingList),
3843 (atomic(A) -> Activating=A
3844 ; A=triggerActivation(A2,_Params,_Prob) -> Activating=A2 % TODO: show params
3845 ; member(chooseActivation(A2,Prob),A), get_simb_number_as_str(Prob,30,P2), ajoin([A2,':',P2],Activating)).
3846 describe_activation(ID,Option,true) :-
3847 simb_activation_options(ID,Options), member(Option,Options).
3848 % TODO: extend for all other infos
3849
3850 % ---------------------
3851
3852 :- use_module(probsrc(tools),[wrap_and_truncate_atom/4,string_escape/2]).
3853 :- use_module(dotsrc(dot_graph_generator), [gen_dot_graph/3, list_to_dot_record/2]).
3854 :- use_module(probsrc(preferences),[temporary_set_preference/3, reset_temporary_preference/2]).
3855
3856 tcltk_print_simb_activation_graph(File) :-
3857 (current_simb_state(State) -> true ; State=none),
3858 temporary_set_preference(dot_print_self_loops,true,Chng),
3859 call_cleanup(gen_dot_graph(File,dot_activation_node(State),dot_activation_trans(State)),
3860 reset_temporary_preference(dot_print_self_loops,Chng)).
3861
3862 %:- use_module(library(codesio),[format_to_codes/3]).
3863 dot_activation_node(State,ID,none,EDesc,record,none,Color) :-
3864 simb_activation(ID,Prio,ActKind),
3865 simb_activation_effect(ID,Execute,AddGuard,_TransSelection,After,_ActivationList),
3866 (get_simb_scheduling_entry(State,Time,_Prio,ID,_) -> Color=purple, ajoin(['* ',Time,' ms *'],TimeS)
3867 ; Color=blue, TimeS=none),
3868 (After=0 -> EAftSS=none
3869 ; get_simb_number_as_str(After,30,AftS),string_escape(AftS,EAftS), atom_concat('after: ',EAftS,EAftSS)),
3870 (Prio=1 -> EPrioSS=none
3871 ; get_simb_number_as_str(Prio,30,PrioS),string_escape(PrioS,EPrioS),atom_concat('prio: ',EPrioS,EPrioSS)),
3872 (Execute=[] -> ExecSS=none
3873 ; Execute=[Ex], atom(Ex) -> string_escape(Ex,ExecS), atom_concat('execute: ',ExecS,ExecSS)
3874 ; length(Execute,Len) -> ajoin(['execute list: ',Len],ExecSS)
3875 ; ExecSS = 'execute: ??'
3876 ),
3877 (simb_activation_params(ID,TParams), TParams = [_|_], get_texpr_ids(TParams,Params)
3878 -> ajoin_with_sep(Params,',',ParamsS), atom_concat('params: ',ParamsS,ParamsSS)
3879 ; ParamsSS = none),
3880 (AddGuard=b(truth,_,_) -> GuardSS=none
3881 ; translate_bexpression_with_limit(AddGuard,30,Gs), string_escape(Gs,EGs),
3882 atom_concat('guard: ',EGs,GuardSS)),
3883 list_to_dot_record([ID,ParamsSS,TimeS,EPrioSS,ActKind,EAftSS,ExecSS,GuardSS],EDesc).
3884 %simb_activation_options(ID,Options).
3885
3886
3887
3888 dot_activation_trans(_State,NodeID,Label,SuccNodeID,Color,Style) :- Color=black,
3889 simb_activation(NodeID,_,_ActKind),
3890 simb_activation_effect(NodeID,_Execute,_AddGuard,_TransSelection,_After,ActivationList),
3891 (member(SuccNodeID,ActivationList), simb_activation_id(SuccNodeID),Label = '', Style=solid
3892 ; member(triggerActivation(SuccNodeID,_Params,Prob),ActivationList),
3893 (Prob=none -> Label = '', Style=solid
3894 ; get_simb_number_as_str(Prob,30,Label), Style=dashed) % TODO: show params
3895 ; member(List,ActivationList),member(chooseActivation(SuccNodeID,Prob),List),
3896 get_simb_number_as_str(Prob,30,Label), Style=dashed
3897 ).