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