1 % (c) 2009-2025 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 :- module(specfile, [
6 specfile_possible_trans_name/2, specfile_possible_trans_name_for_successors/2,
7 specfile_trans/6,
8 prepare_state_for_specfile_trans/3, prepare_state_for_specfile_trans/4,
9 extract_infos_from_prepared_state/2,
10
11 property/2, elementary_prop/2,
12
13 partial_trans/4, specfile_trans_or_partial_trans/7,
14
15 animation_mode/1, set_animation_mode/1, add_animation_minor_mode/1,
16 animation_minor_mode/1, set_animation_minor_mode/1, remove_animation_minor_mode/0,
17 unset_animation_minor_modes/1, reset_animation_minor_modes/1,
18 b_mode/0, z_mode/0, b_or_z_mode/0, b_or_z_mode/1,
19 eventb_mode/0,
20 classical_b_mode/0,
21 csp_mode/0, csp_mode/1,
22 csp_with_bz_mode/0, z_or_tla_minor_mode/0,
23 process_algebra_mode/0,
24 xtl_mode/0,
25 b_syntax_available_for_source/0,
26
27 type_check_csp_and_b/0,
28
29 currently_opened_file/1, % only true for successfully opened files
30 currently_opened_file_status/2, % second parameter: success or failure
31 currently_opened_specification_name/1,
32 %reset_currently_opened_file/0,
33 set_currently_opened_file/1, set_currently_opened_b_file/1,
34 set_failed_to_open_file/1,
35 set_minor_animation_mode_from_file/1,
36 set_currently_opening_file/1,
37 set_currently_opened_package/1,
38 spec_file_has_been_successfully_loaded/0,
39 b_absolute_file_name_relative_to_opened_file/2,
40
41 state_corresponds_to_initialised_b_machine/1, state_corresponds_to_initialised_b_machine/2,
42 state_corresponds_to_fully_setup_b_machine/1, state_corresponds_to_fully_setup_b_machine/2,
43 state_corresponds_to_set_up_constants/1,
44 state_corresponds_to_set_up_constants/2, state_corresponds_to_set_up_constants_only/2,
45 extract_variables_from_state/2, extract_variables_from_state_as_primed/2,
46 current_b_expression/1,
47 get_current_state_for_b_formula/2, get_state_for_b_formula/3,
48
49 get_operation_name/2, get_operation_internal_name/2,
50 translate_operation_name/2,
51 get_operation_arguments/2, get_operation_return_values_and_arguments/3,
52 get_operation_description/2, get_operation_description_for_transition/4,
53 get_operation_description_for_transition_id/3,
54 build_up_b_real_operation/2,
55 expand_const_and_vars/3, expand_const_and_vars_to_full_store/2,
56 expand_to_constants_and_variables/3,
57
58 max_operations_zero_for_operation/1,
59 compute_operation_effect_max/6, % has replaced compute_operation_effect/5
60 create_setup_constants_operation/3,
61 get_internal_representation/1, get_internal_representation/4,
62 get_possible_event/1, get_feasible_event/1,
63 get_possible_language_specific_top_level_event/3,
64 get_specification_description/2,
65 get_local_state_for_operation_transition/3,
66 get_local_states_for_operation_transition/4, create_local_store_for_operation/4
67 ]).
68
69 :- use_module(tools).
70
71 :- use_module(module_information).
72 :- module_info(group,animator).
73 :- module_info(description,'This module computes transitions and properties depending on the current animator mode.').
74
75 :- use_module(library(lists)).
76 %:- use_module(library(avl)).
77 %:- use_module(library(clpfd)).
78
79 :- use_module(debug).
80 :- use_module(b_interpreter).
81 :- use_module(preferences).
82 :- use_module(self_check).
83 :- use_module(error_manager).
84 :- use_module(translate).
85 :- use_module(succeed_max,[succeed_max_call_id/3]).
86
87 :- use_module(store,[empty_state/1]).
88 :- use_module(bmachine).
89 :- use_module(bsyntaxtree).
90 :- use_module(xtl_interface).
91
92
93 %% :- use_module(delay).
94
95 :- use_module(value_persistance, [load_constants/2]).
96
97 :- set_prolog_flag(double_quotes, codes).
98
99 /* --------------------------------- */
100
101
102
103
104 /* --------------------------------- */
105 /* ANIMATION & TEMPORAL VERIFICATION */
106 /* --------------------------------- */
107
108
109 :- dynamic animation_mode/1, animation_minor_mode/1.
110 % not marking as volatile; otherwise we startup with no animation_mode set
111 % not all parts of ProB can deal with this at the moment
112 %:- volatile animation_mode/1, animation_minor_mode/1.
113
114 animation_mode(b).
115 % possible values: b, csp, xtl, z, csp_and_b, promela
116 % animation_minor_mode: possible values alloy, event_b, tla, z (classical B if no animation_minor_mode fact)
117
118 b_mode :- animation_mode(X), (X=b ; X=csp_and_b).
119 z_mode :- animation_mode(X), (X=b ; X=csp_and_b), animation_minor_mode(z).
120 ?classical_b_mode :- b_mode, (animation_minor_mode(Mode) -> classical_minor_mode(Mode) ; true).
121 classical_minor_mode(rules_dsl).
122
123 eventb_mode :-
124 animation_mode(X), (X=b ; X=csp_and_b),
125 animation_minor_mode(eventb).
126 csp_with_bz_mode :- animation_mode(csp_and_b).
127 z_or_tla_minor_mode :- animation_minor_mode(X), (X=tla ; X=z).
128
129 csp_mode :- animation_mode(X), csp_mode(X).
130 csp_mode(cspm).
131 csp_mode(csp_and_b).
132
133 xtl_mode :- animation_mode(xtl).
134
135 b_or_z_mode :-
136 (animation_mode(X) -> (X=b -> true ; X=csp_and_b)). % basically the same as b_mode
137 b_or_z_mode(b). b_or_z_mode(csp_and_b).
138
139 % is B syntax (ASCII/Unicode available for source files)
140 b_syntax_available_for_source :-
141 b_or_z_mode,
142 (animation_minor_mode(X) -> X=event_b ; true).
143
144 process_algebra_mode :- %Note: also covers xtl (Promela, CCS interpreters; see test 756); used for translating events (tau, tick, io(...))
145 animation_mode(X), X \= b,
146 \+ ((X=xtl, xtl_get_definition_string('PROCESS_ALGEBRA_MODE',false))).
147
148 set_animation_mode(X) :-
149 retractall(animation_mode(_)),
150 remove_animation_minor_mode,
151 assertz(animation_mode(X)).
152
153 set_animation_minor_mode(X) :-
154 remove_animation_minor_mode,
155 assertz(animation_minor_mode(X)).
156 remove_animation_minor_mode :-
157 retractall(animation_minor_mode(_)).
158
159 % use to temporarily unset animation minor mode:
160 :- use_module(library(lists),[maplist/2]).
161 unset_animation_minor_modes(L) :- findall(X,retract(animation_minor_mode(X)),L).
162 reset_animation_minor_modes(L) :- maplist(add_animation_minor_mode,L).
163
164 add_animation_minor_mode(X) :-
165 (animation_minor_mode(X) -> true ; assertz(animation_minor_mode(X))).
166
167
168 :- dynamic currently_opened_file_status/2.
169 :- volatile currently_opened_file_status/2.
170 %currently_opened_file(none).
171
172 :- use_module(bmachine,[b_machine_name/1]).
173 currently_opened_specification_name(Name) :-
174 (b_or_z_mode -> b_machine_name(Name)
175 ; currently_opened_file(File),
176 get_modulename_filename(File,Name)
177 ).
178
179 reset_currently_opened_file :- retractall(currently_opened_file_status(_,_)).
180 reset_specfile :- reset_currently_opened_file,
181 retractall(animation_minor_mode(_)).
182 :- use_module(eventhandling,[register_event_listener/3]).
183 :- register_event_listener(clear_specification,reset_specfile,
184 'Reset Specfile Currently Opened File.').
185
186 % call if a spec was not loaded from file but from package (e.g., via socket / prob2)
187 set_currently_opened_package(Type) :-
188 set_currently_opened_file(package(Type)).
189
190 % indicates we are in the process of opening a file
191 set_currently_opening_file(File) :-
192 reset_currently_opened_file,
193 assertz(currently_opened_file_status(File,opening)),
194 set_minor_animation_mode_from_file(File).
195
196 :- use_module(tools,[get_filename_extension/2]).
197 set_minor_animation_mode_from_file(File) :-
198 get_filename_extension(File,Extension),
199 file_extension_mode(Extension,Major,Minor),!,
200 animation_mode(CurMajor),
201 (CurMajor=Major
202 -> (animation_minor_mode(CurMinor)
203 -> (CurMinor=Minor -> true
204 ; add_warning(specfile,'Minor animation mode incompatible with file:',CurMinor:File)
205 )
206 ; Minor=none -> true
207 ; set_animation_minor_mode(Minor)
208 )
209 ; add_warning(specfile,'Major animation mode incompatible with file:',CurMajor:File)
210 ).
211 set_minor_animation_mode_from_file(File) :- add_warning(specfile,'Unknown file extension:',File).
212
213 :- use_module(probsrc(tools_platform), [host_platform/1]).
214 file_extension_mode(mch,b,none). % classical b, could also be csp_and_b
215 file_extension_mode(ref,b,none).
216 file_extension_mode(imp,b,none).
217 file_extension_mode(def,b,none).
218 file_extension_mode(sys,b,none).
219 file_extension_mode(rmch,b,rules_dsl).
220 file_extension_mode(prob,b,none). % Here we cannot infer the mode; TODO: in future store this info in the .prob file
221 file_extension_mode(tla,b,tla).
222 file_extension_mode(fuzz,b,z).
223 file_extension_mode(tex,b,z).
224 file_extension_mode(eventb,b,eventb).
225 file_extension_mode('P',xtl,none).
226 file_extension_mode('p',xtl,none) :- host_platform(windows),
227 add_message(specfile,'Lower-case file extension .p treated as .P for XTL mode').
228 file_extension_mode(als,b,alloy).
229 file_extension_mode(csp,cspm,none).
230 file_extension_mode(cspm,cspm,none).
231
232 % store currently openend specification file and set B minor animation mode
233 set_currently_opened_b_file(File) :-
234 set_currently_opened_file(File),
235 set_minor_animation_mode_from_file(File).
236
237 set_currently_opened_file(File) :-
238 reset_currently_opened_file,
239 assertz(currently_opened_file_status(File,success)).
240
241 set_failed_to_open_file(File) :-
242 reset_currently_opened_file,
243 assertz(currently_opened_file_status(File,failure)).
244
245 currently_opened_file(File) :- currently_opened_file_status(File,success).
246
247
248 :- use_module(tools,[safe_absolute_file_name/3, get_parent_directory/2]).
249 % open a file relateive to the main B file
250 b_absolute_file_name_relative_to_opened_file(File,AbsFileName) :-
251 currently_opened_file_status(MainFileName,_Status), % _Status=failure happens when error during loading
252 get_parent_directory(MainFileName,Directory),
253 safe_absolute_file_name(File,AbsFileName,[relative_to(Directory)]).
254
255 spec_file_has_been_successfully_loaded :- currently_opened_file(_).
256
257 :- use_module(bmachine,[b_machine_has_variables/0]).
258 % true if state corresponds to an initialised B machine
259 state_corresponds_to_initialised_b_machine(const_and_vars(_,_)) :- !,
260 b_or_z_mode.
261 state_corresponds_to_initialised_b_machine(expanded_const_and_vars(_,_,_,_)) :- !,
262 b_or_z_mode.
263 state_corresponds_to_initialised_b_machine(expanded_vars(_,_)) :- !,
264 b_or_z_mode.
265 state_corresponds_to_initialised_b_machine([]).
266 state_corresponds_to_initialised_b_machine([_|_]).
267 state_corresponds_to_initialised_b_machine(csp_and_b(_,BState)) :-
268 csp_with_bz_mode,
269 state_corresponds_to_initialised_b_machine(BState).
270
271
272 % check if state corresponds to an initialised B machine, and if so return expanded State
273 state_corresponds_to_initialised_b_machine(const_and_vars(ConstID,Vars),State) :- !,
274 b_or_z_mode, expand_const_and_vars(ConstID,Vars,State).
275 state_corresponds_to_initialised_b_machine(expanded_const_and_vars(_ConstID,_Vars,FullStore,_),State) :- !,
276 % generated by prepare_state_for_specfile_trans
277 State=FullStore.
278 state_corresponds_to_initialised_b_machine(expanded_vars(FullStore,_),State) :- !,
279 % generated by prepare_state_for_specfile_trans
280 State=FullStore.
281 state_corresponds_to_initialised_b_machine([],[]).
282 state_corresponds_to_initialised_b_machine([H|T],[H|T]).
283 state_corresponds_to_initialised_b_machine(csp_and_b(_,BState),State) :-
284 csp_with_bz_mode,
285 state_corresponds_to_initialised_b_machine(BState,State).
286
287 % check if all variables, constants setup; also allows concrete_constants if no variables exist
288 state_corresponds_to_fully_setup_b_machine(concrete_constants(_)) :- !, b_or_z_mode,
289 \+ b_machine_has_variables.
290 state_corresponds_to_fully_setup_b_machine(X) :- state_corresponds_to_initialised_b_machine(X).
291
292 state_corresponds_to_fully_setup_b_machine(concrete_constants(Constants),State) :- !, b_or_z_mode,
293 \+ b_machine_has_variables, State=Constants.
294 state_corresponds_to_fully_setup_b_machine(X,State) :- state_corresponds_to_initialised_b_machine(X,State).
295
296 % check if we only have constants, no variable values yet
297 state_corresponds_to_set_up_constants_only(root,State) :- !, animation_mode(b),
298 \+ b_machine_has_constants_or_properties, State=[]. % relevant for test 960
299 state_corresponds_to_set_up_constants_only(concrete_constants(Constants),State) :- !,
300 b_or_z_mode, State=Constants.
301 state_corresponds_to_set_up_constants_only(csp_and_b(_,BState),State) :- !,
302 csp_with_bz_mode,
303 state_corresponds_to_set_up_constants_only(BState,State).
304
305 state_corresponds_to_set_up_constants(const_and_vars(_,_)) :- !. % avoid expansion
306 state_corresponds_to_set_up_constants(X) :- state_corresponds_to_set_up_constants(X,_).
307
308 state_corresponds_to_set_up_constants(const_and_vars(ConstID,Vars),State) :- !,
309 b_or_z_mode, expand_const_and_vars(ConstID,Vars,State).
310 state_corresponds_to_set_up_constants(expanded_const_and_vars(_ConstID,_Vars,FullStore,_),State) :- !,
311 % generated by prepare_state_for_specfile_trans
312 State=FullStore.
313 state_corresponds_to_set_up_constants(expanded_vars(FullStore,_),State) :- !,
314 % generated by prepare_state_for_specfile_trans
315 State=FullStore.
316 state_corresponds_to_set_up_constants(concrete_constants(Constants),State) :- !,
317 b_or_z_mode, State=Constants.
318 state_corresponds_to_set_up_constants(csp_and_b(_,BState),State) :- !,
319 csp_with_bz_mode,
320 state_corresponds_to_set_up_constants(BState,State).
321 state_corresponds_to_set_up_constants([],State) :- !, State=[],
322 animation_mode(b).
323 state_corresponds_to_set_up_constants(State,RState) :-
324 animation_mode(b),
325 (State = root -> \+ b_machine_has_constants_or_properties,RState=[] ; RState=State).
326
327 :- use_module(state_space,[current_expression/2]).
328 current_b_expression(CurBState) :-
329 current_expression(_CurID,CurState),
330 state_corresponds_to_set_up_constants(CurState,CurBState).
331
332
333
334 :- use_module(state_space, [current_state_id/1]).
335 :- use_module(bmachine, [determine_type_of_formula/2]).
336 % get a state sufficient to evaluate a given formula (expression or predicate)
337 % it will give an error is the machine is not sufficiently initialised
338 get_current_state_for_b_formula(TypedExpr,BState) :-
339 current_state_id(CurID),
340 get_state_for_b_formula(CurID,TypedExpr,BState).
341 get_state_for_b_formula(StateID,TypedExpr,BState) :-
342 (formula_class(TypedExpr) -> Type=TypedExpr % user already provided formula class
343 ; determine_type_of_formula(TypedExpr,Type)), % TODO: extract used ids and only expand those that are required
344 get_state(Type,StateID,TypedExpr,BState).
345
346 formula_class(requires_nothing).
347 formula_class(requires_constants).
348 formula_class(requires_variables).
349
350 :- use_module(probsrc(state_space),[get_constants_state_for_id/3]).
351 get_state(requires_nothing,_ID,_TE,[]).
352 get_state(requires_constants,StateID,TypedExpr,BState) :-
353 (get_constants_state_for_id(StateID,[allow_variable_list],BState) -> true
354 ; ajoin(['Please setup constants first, cannot evaluate (in state ',StateID,') :'],Msg),
355 add_error(get_state,Msg,TypedExpr,TypedExpr),fail).
356 get_state(requires_variables,StateID,TypedExpr,BState) :-
357 my_visited_expression(StateID,State),
358 (state_corresponds_to_initialised_b_machine(State,BState) -> true ;
359 ajoin(['Please initialise machine first, cannot evaluate (in state ',StateID,') :'],Msg),
360 add_error(get_state,Msg,TypedExpr,TypedExpr),fail).
361 % TO DO: we could try and get only those identifiers that are really used
362
363 :- use_module(state_space,[visited_expression/2]).
364 my_visited_expression(root,S) :- !,
365 S=root. % ensure we succeed even if no state space set (e.g. when no machine provided to probcli)
366 my_visited_expression(StateID,State) :- visited_expression(StateID,State).
367
368 /* TRANSITIONS */
369
370 :- use_module(tools_meta,[call_residue/2]).
371 % ---------------------------------------------------
372
373
374 % Tries to find successor state for Op in State DB. Fails, if no solution is possible
375 % Input: State DB, Operation Op
376 % Output: DB2 the sucessor state
377 % Residue: Unfinished co-routines (should not happen!)
378 %specfile_trans(DB,Op,DB2,[]) :- !, specfile:i_transition(DB,Op,DB2).
379 specfile_trans(DB,OpName,Op,DB2,TransInfo,Residue) :-
380 % i_transition(DB,OpName,Op,DB2,TransInfo), Residue = []. % is faster, but no residue checking
381 animation_mode(MODE),
382 ? call_residue(i_transition(MODE,DB,OpName,Op,DB2,TransInfo),Residue).
383
384 i_transition(b,State,OpName,Op,NewState,TransInfo) :- !,
385 ? b_trans(State,OpName,Op,NewState,TransInfo).
386 i_transition(xtl,State,OpName,Op,NewState,TransInfo) :- !,
387 xtl_transition(State,Op,NewState,TransInfo), functor(Op,OpName,_).
388 i_transition(cspm,State,_OpName,Op,NewState,[]) :- !,
389 % Note: the OpName is ignored: we cannot make use of it
390 cspm_transition(State,Op,NewState).
391 %i_transition(promela,State,_OpName,Op,NewState,[]) :- !,
392 % promela_transition(State,Op,NewState).
393 % ; MODE=smv -> smv_transition(State,Op,NewState),TransInfo=[]
394 i_transition(csp_and_b,State,OpName,Op,NewState,TransInfo) :- !,
395 % Note: the OpName is either the name of a B operation or '$CSP' (or a variable)
396 csp_and_b_transition(State,OpName,Op,NewState,TransInfo).
397
398
399 % if you call specfile_trans multiple times for the same state, it is
400 % more efficient to call this predicate first once
401 prepare_state_for_specfile_trans(const_and_vars(ConstID,Vars),CurID,R) :- !, %print(expanding_const(ConstID)),nl,
402 R = expanded_const_and_vars(ConstID,Vars,FullStore,Infos),
403 expand_const_and_vars(ConstID,Vars,FullStore), %, print(full(FullStore)),nl.
404 prepare_infos(FullStore,CurID,Infos).
405 prepare_state_for_specfile_trans(FullStore,CurID,R) :- FullStore=[_|_],
406 prepare_infos(FullStore,CurID,Infos), Infos \=[],
407 !,
408 R = expanded_vars(FullStore,Infos).
409 prepare_state_for_specfile_trans(csp_and_b(CSP,BStore),CurID,csp_and_b(CSP,Res)) :- !,
410 prepare_state_for_specfile_trans(BStore,CurID,Res).
411 prepare_state_for_specfile_trans(X,_,X).
412
413 % a version with a memo argument to store expanded constants
414 prepare_state_for_specfile_trans(const_and_vars(ConstID,Vars),CurID,MEMO,R) :- !, %print(expanding_const(ConstID)),nl,
415 R = expanded_const_and_vars(ConstID,Vars,FullStore,Infos),
416 (nonvar(MEMO),MEMO = [ConstID/ConstantsStore]
417 % constants have already been previously extracted; e.g., in model_checker loop
418 -> %tools_printing:print_term_summary(memo(ConstID,ConstantsStore)),nl,
419 append(Vars,ConstantsStore,FullStore) % simply reuse expanded constants in MEMO
420 % used to be constants first, but has to be compatible with b_initialise_machine2 and expand_const_and_vars/3
421 ; % expand_const_and_vars/3 inlined (so as to obtain ConstantsStore
422 visited_expression(ConstID,concrete_constants(ConstantsStore)), %% This can take a while if the Constants are big !
423 % print(no_memo(ConstID,MEMO)),tools_printing:print_term_summary(ConstantsStore),nl,
424 append(Vars,ConstantsStore,FullStore),
425 (var(MEMO)
426 -> MEMO=[ConstID/ConstantsStore] % store expanded constants to avoid unpacking again
427 ; true)
428 ), %, print(full(FullStore)),nl.
429 prepare_infos(FullStore,CurID,Infos).
430 prepare_state_for_specfile_trans(FullStore,CurID,_,R) :- FullStore=[_|_],
431 prepare_infos(FullStore,CurID,Infos), Infos \=[], !,
432 R = expanded_vars(FullStore,Infos).
433 prepare_state_for_specfile_trans(csp_and_b(CSP,BStore),CurID,MEMO,csp_and_b(CSP,Res)) :- !,
434 prepare_state_for_specfile_trans(BStore,CurID,MEMO,Res).
435 prepare_state_for_specfile_trans(X,_,_,X). % TODO: prepare infos as well if we have no constants
436
437 :- use_module(state_packing,[pack_state/2, get_packed_b_state_with_uncompressed_lists/2]).
438 % store some operation independent infos which are useful
439 prepare_infos(FullStore,CurID,Infos) :- CurID \= root,
440 (get_preference(try_operation_reuse,false)
441 -> Infos = []
442 % TO DO: check if we should enable this: get_preference(use_state_packing,true)
443 % TODO: we could check if there are operations which do not write all variables
444 ; Infos=[packed_state/PackedList, state_id/CurID],
445 (CurID \= unknown, state_space:packed_visited_expression(CurID,PS),
446 get_packed_b_state_with_uncompressed_lists(PS,PackedList) % replace '$cst_vars' and compressed lists
447 -> true %,write('+')
448 ; format('prepare_infos for state ~w: need to pack_values~n',[CurID]), % should ideally not happen
449 pack_state(FullStore,PS), % precompute state packing; will be re-used multiple times
450 get_packed_b_state_with_uncompressed_lists(PS,PackedList)
451 )
452 ).
453
454 % extract pre-computed infos
455 extract_infos_from_prepared_state(expanded_const_and_vars(_,_,_,Infos),Res) :- !, Res=Infos.
456 extract_infos_from_prepared_state(expanded_vars(_,Infos),Res) :- !, Res=Infos.
457 extract_infos_from_prepared_state(_,[]).
458
459 remove_infos_from_prepared_state(expanded_const_and_vars(C,V,_,_),Res) :- !, Res=const_and_vars(C,V).
460 remove_infos_from_prepared_state(expanded_vars(V,_),R) :- !, R=V.
461 remove_infos_from_prepared_state(S,S).
462
463 % extract initialised variables from a state
464 extract_variables_from_state(const_and_vars(_,V),R) :- !,R=V.
465 extract_variables_from_state(expanded_const_and_vars(_,V,_,_),R) :- !,R=V.
466 extract_variables_from_state(expanded_vars(V,_),R) :- !,R=V.
467 extract_variables_from_state([],[]).
468 extract_variables_from_state([H|T],[H|T]).
469
470 :- use_module(probsrc(btypechecker),[prime_atom0/2]). % add $0 at end of variable
471 prime_binding(bind(ID,V),bind(PID,V)) :- prime_atom0(ID,PID).
472
473 extract_variables_from_state_as_primed(SrcState,PrimedVarBindings) :-
474 extract_variables_from_state(SrcState,VarVals),
475 maplist(prime_binding,VarVals,PrimedVarBindings).
476
477
478 /* can be attempted if trans fails to attempt to use partially computed transitions */
479 partial_trans(DB,Op,DB2,Residue) :-
480 call_residue(partial_i_transition(DB,Op,DB2),Residue).
481
482 partial_i_transition(root,'$partial_setup_constants',concrete_constants(ConstantsStore)) :-
483 animation_mode(b),
484 set_error_context(operation('$partial_setup_constants',root)),
485 b_interpreter:b_partial_set_up_concrete_constants(ConstantsStore).
486
487 % a predicate which automatically calls partial_trans :
488 specfile_trans_or_partial_trans(DB,OpName,Op,DB2,TransInfo,Residue,Partial) :-
489 if(specfile_trans(DB,OpName,Op,DB2,TransInfo,Residue),Partial=false,
490 (OpName='$setup_constants', % OpName is often an input argument here
491 TransInfo=[], Partial = true,
492 partial_trans(DB,Op,DB2,Residue))).
493
494 /* build up skeletons of possible operations; to be used before time_out call is made */
495 % currently only used in zmq worker.pl
496 specfile_possible_trans_name(State,OpName) :- animation_mode(MODE),
497 (MODE=b -> b_possible_trans_name(State,OpName)
498 ; MODE = csp_and_b -> csp_b_possible_trans_name(State,OpName)
499 ; setup_transition_skeleton(MODE,OpName) /* TO DO: add more possible skeletons */
500 ).
501
502 % only set up skeletons if it is worth it for computing all successors
503 % e.g., currently it is not worth it to setup skeletons for either CSP or CSP||B (due to renaming,... we cannot predict which parts of a CSP process can be excluded)
504 specfile_possible_trans_name_for_successors(State,OpName) :- animation_mode(MODE),
505 (MODE=b
506 ? -> b_possible_trans_name(State,OpName)
507 ; setup_transition_skeleton(MODE,OpName)
508 ).
509
510 setup_transition_skeleton(_,_). /* TO DO: add more possible skeletons ? */
511
512 :- use_module(library(random)).
513 b_possible_trans_name(root,OpName) :- !,
514 (b_machine_has_constants_or_properties
515 -> OpName = '$setup_constants'
516 ; OpName = '$initialise_machine').
517 b_possible_trans_name(concrete_constants(_),OpName) :- !, OpName = '$initialise_machine'.
518 b_possible_trans_name(_State,OpName) :-
519 (preferences:preference(randomise_operation_order,true),random(1,3,1)
520 -> b_machine_operation_names_in_reverse_order(OpName) ; true),
521 %b_get_machine_operation(OpName,_Res,_Params,_,_,_).
522 ? b_top_level_feasible_operation(OpName). % TO DO: we could link also with cbc feasibility analysis if carried out
523 % we could check: b_operation_cannot_modify_state(OpName) given a preference, in particular for SAFETY_MODEL_CHECK when operation already covered
524
525 csp_b_possible_trans_name(csp_and_b_root,OpName) :- !,
526 (b_machine_has_constants_or_properties
527 -> OpName = 'tau($setup_constants)'
528 ; OpName = 'tau($initialise_machine)').
529 csp_b_possible_trans_name(concrete_constants(_),OpName) :- !,
530 OpName = 'tau($initialise_machine)'.
531 csp_b_possible_trans_name(State,OpName) :-
532 b_possible_trans_name(State,OpName).
533 % TO DO: add non-synchronised channels
534
535 % --------------
536
537 :- use_module(probcspsrc(haskell_csp),[channel_type_list/2, symbol/4]).
538 :- use_module(debug).
539 % check whether a currently open CSP is type compatible with a loaded B machine
540 type_check_csp_and_b :- animation_mode(csp_and_b), debug_println(9,type_check_csp_and_b),
541 b_get_machine_operation(ChannelOpName,Res,Params,_,_,_), append(Params,Res,ParamsRes),
542 channel_type_list(ChannelOpName,CSPTypeList),
543 % TO DO: also check B variable names which match channel name
544 debug_println(9,checking_synchronised_channel(ChannelOpName,ParamsRes,CSPTypeList)),
545 l_check_compatibility(ParamsRes,CSPTypeList,ChannelOpName),
546 fail.
547 type_check_csp_and_b.
548
549 %convert_csp_type_to_list(type(T),R) :- convert_csp_type_to_list2(T,R).
550 %convert_csp_type_to_list2(dotUnitType,[]).
551 %convert_csp_type_to_list2(dotTupleType(T),T).
552
553 l_check_compatibility([],[],_) :- !.
554 l_check_compatibility([B|BT],[CSP|CSPT],ChannelOpName) :- !, check_compatibility(B,CSP,ChannelOpName),
555 l_check_compatibility(BT,CSPT,ChannelOpName).
556 l_check_compatibility([],CSP,ChannelOpName) :- !,
557 add_error(type_check_csp_and_b,'CSP Channel has too many parameters: ', ChannelOpName:CSP).
558 l_check_compatibility(B,[],ChannelOpName) :- !,
559 print('* CSP Channel has too few parameters: '), print(ChannelOpName),nl,
560 print('* B Arguments will be ignored: '), l_print_bexpr_or_subst(B),nl.
561 %add_error(type_check_csp_and_b,'CSP Channel has too few parameters: ', ChannelOpName:B).
562
563 check_compatibility(b(identifier(ID),TYPE,INFO),CSP_TYPE,ChannelOpName) :- !,
564 (type_ok(TYPE,CSP_TYPE) -> true ;
565 % TO DO: pretty print B and CSP Types
566 add_error(type_check_csp_and_b,'Incompatible types between B and CSP: ',ChannelOpName:ID:(TYPE:CSP_TYPE),b(identifier(ID),TYPE,INFO))
567 ).
568 check_compatibility(B,CSP,ChannelOpName) :- !,
569 add_internal_error('Illegal types: ',check_compatibility(B,CSP,ChannelOpName)).
570
571 % TO DO: needs to be refined much more;
572 type_ok(Type,CSPType) :-
573 (type_ok2(Type,CSPType) -> true
574 ; add_error(type_check_csp_and_b,'Cannot be converted (B:CSP): ',Type:CSPType),fail).
575 type_ok2(boolean,X) :- !, is_csp_boolean_type(X).
576 type_ok2(integer,X) :- !, is_csp_integer_type(X).
577 type_ok2(string,CSP) :- !,is_csp_global_set_type(CSP,string).
578 type_ok2(set(T),CSP) :- !, is_csp_set_type(CSP,T).
579 % TO DO: what if we have set(couple(integer,T)) instead of seq(T) ?
580 % rye
581 % check set(couple(integer,T)) (seq type) in B
582 type_ok2(seq(T),CSP) :- !, is_csp_seq_type(CSP,T).
583 type_ok2(couple(A,B),CSP) :- !, is_csp_couple_type(CSP,A,B).
584 type_ok2(global(GS),CSP) :- !,is_csp_global_set_type(CSP,GS).
585 type_ok2(X,Y) :- print(unkown(X,Y)),nl.
586
587 is_csp_couple_type(setValue([na_tuple([A|Rest])|_]),TA,TB) :- type_ok(TA,setValue([A])),
588 check_rest_couple_els(Rest,TB).
589 is_csp_couple_type(typeTuple([A|Rest]),TA,TB) :- type_ok(TA,A), check_rest_couple(Rest,TB).
590
591 check_rest_couple_els([B],TB) :- !, type_ok(TB,setValue([B])).
592 check_rest_couple_els([B1|BRest],couple(TB1,TBRest)) :- type_ok(TB1,setValue([B1])),
593 check_rest_couple_els(BRest,TBRest).
594 check_rest_couple([B],TB) :- !, type_ok(TB,B).
595 check_rest_couple([B1|BRest],couple(TB1,TBRest)) :- type_ok(TB1,B1),
596 check_rest_couple(BRest,TBRest).
597
598 % rye
599 % check if it is couple(integer, T) type and return T in 2nd arguments
600 couple_int(couple(integer, T), T). % possible sequence
601
602 % rye: it's not correct to check only Head
603 % % for example, for CSP type, {{}, {(1,2),(2,3)}}. Its head is emptyset, but the second one is set of tuple
604 is_csp_set_type('Set'([H|_]),Type) :- type_ok(Type,H). % just check Head
605 % check the 2nd element in set in case the 1st is emptyset
606 is_csp_set_type(setValue([_|T]),Type) :-
607 T = [H1 | _], !,
608 % if it is set(couple(integer, T)), it can be a sequence type
609 (couple_int(Type, TH1) -> is_csp_seq_type(setValue(T), TH1)
610 ; type_ok(Type,H1)
611 ). % check the 2nd
612 % if it is only one element in set, just check the head
613 is_csp_set_type(setValue([H|T]),Type) :-
614 (couple_int(Type, TH1) -> is_csp_seq_type(setValue([H|T]), TH1)
615 ; type_ok(Type,H)
616 ). % just check Head
617
618 is_csp_seq_type('Seq'(H),Type) :- type_ok(Type,H).
619 is_csp_seq_type(setValue([H|_]),Type) :- H=list(L), is_csp_list(L,Type).
620 is_csp_list([],_).
621 is_csp_list([H|_],Type) :- type_ok(Type,setValue([H])).
622
623 is_csp_boolean_type(boolType).
624 is_csp_boolean_type(setValue([H|_])) :- is_csp_boolean_value(H).
625 is_csp_boolean_value(true).
626 is_csp_boolean_value(false).
627
628 is_csp_integer_type(intType).
629 is_csp_integer_type(setFromTo(_,_)).
630 is_csp_integer_type(setFrom(_)).
631 is_csp_integer_type(setValue([int(_)|_])).
632
633 is_csp_global_set_type(dataType(_),_GS). % TO DO CHECK MEMBERS
634 is_csp_global_set_type(setValue([]),_GS). % TO DO CHECK MEMBERS
635 is_csp_global_set_type(setValue([_|_]),_GS). % TO DO CHECK MEMBERS
636
637 % --------------
638
639
640 :- use_module(bmachine,[b_get_machine_operation/4]).
641 :- use_module(bsets_clp,[tuple_of/3]).
642 % compute transitions for a CSP || B specification
643 % Note: the OpName is either the name of a B machine operation (even if hidden) or '$CSP' (useful for ltsmin)
644 csp_and_b_transition(root,OpName,Op,NewState,TransInfo) :- !,
645 Op = start_cspm_MAIN, OpName=Op, NewState = csp_and_b_root,TransInfo = [].
646 csp_and_b_transition(csp_and_b_root,OpName,Trans,NewState,TransInfo) :- !,
647 Trans = tau(Op), OpName = '$CSP',
648 b_trans(root,_,Op,InitialBState,TransInfo),
649 (InitialBState = concrete_constants(_)
650 -> NewState = InitialBState
651 ; csp_initialisation_for_b(InitialCSPState),
652 NewState = csp_and_b(InitialCSPState,InitialBState)
653 ).
654 csp_and_b_transition(concrete_constants(C),OpName,Trans,NewState,TransInfo) :- !,
655 Trans = tau(Op), OpName = '$CSP',
656 b_trans(concrete_constants(C),_,Op,InitialBState,TransInfo),
657 csp_initialisation_for_b(InitialCSPState),
658 NewState = csp_and_b(InitialCSPState,InitialBState).
659 csp_and_b_transition(csp_and_b(CSPState,BState),OpName,EventVisibleToUser,csp_and_b(NewCSP,NewB),TransInfo) :-
660 !,
661 csp_transition_for_b(CSPState,ChOpName,ChArgs,CSPAction,NewCSP),
662 % TO DO: split up csp_transition_for_b: into two parts; second part converts datatypes and only called if linking op exists
663 %% print(csp_trans(ChOpName,ChArgs)),nl, %%
664 length(ChArgs,Len), length(OpArgs,Len),
665 b_transition_for_csp(ChOpName,CSPAction,ChArgs,OpArgs,BState,OpName,Operation,NewB,TransInfo),
666 hide_csp_event(CSPAction,Operation,EventVisibleToUser).
667 csp_and_b_transition(State,'$CSP',Op,NewState,[]) :-
668 % we have a pure CSP state: use CSP-M transition
669 cspm_transition(State,Op,NewState).
670
671 :- use_module(bmachine,[b_is_variable/1,b_is_constant/1]).
672 % compute the B counterpart for a CSP transition:
673 b_transition_for_csp(ChOpName,_CSPAction,ChArgs,OpArgs,BState,OpName,Operation,NewB,TransInfo) :-
674 build_up_b_operation_for_csp(ChOpName,OpArgs,Operation),
675 !,
676 OpName = ChOpName,
677 %% print_message(trying_b_trans(Operation,ChArgs,OpArgs)), %%
678 (get_preference(try_operation_reuse,false)
679 -> generate_b_operationargs_from_csp(ChArgs,OpArgs),
680 b_trans(BState,OpName,Operation,NewB,TransInfo)
681 ;
682 % compute B transition without parameters so that we can cache
683 b_trans(BState,OpName,Operation,NewB,TransInfo),
684 % and unify afterwards
685 generate_b_operationargs_from_csp(ChArgs,OpArgs)
686 ).
687 %%, print_message(csp_btrans(Operation)), %%.
688 b_transition_for_csp(ChOpName,_CSPAction,ChArgs,OpArgs,BState,OpName,Operation,NewB,TransInfo) :-
689 OpName = ChOpName,
690 (b_is_variable(ChOpName) ; b_is_constant(ChOpName)),
691 %% print(probing(ChOpName)),nl,
692 expand_const_and_vars_to_full_store(BState,FBState),
693 try_lookup_value_in_store_and_global_sets(ChOpName,FBState,IdValue),
694 !,
695 remove_infos_from_prepared_state(BState,NewB),
696 TransInfo=[],
697 /* interpret as probing operation: get value of var,cst,SET */
698 generate_b_operationargs_from_csp(ChArgs,OpArgs),
699 (OpArgs=[SingleVal]
700 -> SingleVal = IdValue, Operation='-->'(ChOpName,[IdValue])
701 ; OpArgs=[Val1,Val2],
702 tuple_of(Val1,Val2,IdValue), /* from bsets_clp, use exact_element_of ??? */
703 OpCall =.. [ChOpName,Val1],
704 Operation='-->'(OpCall,[Val2])
705 ).
706 b_transition_for_csp(_ChOpName,CSPAction,_ChArgs,_OpArgs,BState,OpName,Operation,NewB,TransInfo) :-
707 OpName = '$CSP', % all CSP events grouped together
708 remove_infos_from_prepared_state(BState,NewB),
709 TransInfo=[],
710 /* no B operation of the name; could be tau or tick or extra comm channel */
711 %Op1 =.. [ChOpName|OpArgs],
712 Operation = CSPAction. % removed csp(.) wrapper [for LTL model checker]
713
714 hide_csp_event(CSPAction,_,EventVisibleToUser) :-
715 symbol('HIDE_CSPB',_,Span,_),!, % if there is a HIDE_CSPB definition then we do MAIN [{| HIDE_CSPB |}] B_MACHINE \ {| HIDE_CSPB |}
716 haskell_csp:evaluate_argument(val_of('HIDE_CSPB',Span),EvCList),
717 % print(hide(EvCList,CSPAction)),nl,
718 haskell_csp:expand_channel_pattern_expression(EvCList,ECList,no_loc_info_available),
719 haskell_csp:cspm_hide_action(CSPAction,omega,ECList, Span, EventVisibleToUser,_).
720 hide_csp_event(_CSPAction,Operation,EventVisibleToUser) :-
721 % get_preference(csp_event_visible_to_user,true) -> EventVisibleToUser = CSPAction
722 EventVisibleToUser = Operation.
723
724 build_up_b_operation_for_csp(OpName,OpArgs,Operation) :- %print(csp(OpName,OpArgs,Operation)),nl,
725 nonvar(OpName),
726 b_get_machine_operation(OpName,Res,Params,_), %print(get_machine_op(OpName,Res,Params)),nl,
727 specfile:generate_args(OpArgs,Params,Res, BArgs,BResults,OpName), %print(gen_args(BArgs,BResults)),nl,
728 % TO DO: either also extract types from Params, Res or better write a static checker that tests that the B operation and CSP channel types are compatible
729 safe_univ(Op1,[OpName|BArgs]), %print(op1(Op1)),nl,
730 (BResults = [] -> Operation = Op1 ; Operation = '-->'(Op1,BResults)).
731
732 :- use_module(bmachine,[b_get_machine_operation_for_animation/6]).
733 build_up_b_real_operation(OpName,Operation) :-
734 b_get_machine_operation_for_animation(OpName,Res,Params,_,_,true), %true==TopLevel
735 length(Params,Len), length(OpArgs,Len),
736 length(Res,RLen), length(BResults,RLen),
737 safe_univ(Op1,[OpName|OpArgs]),
738 (BResults = [] -> Operation = Op1 ; Operation = '-->'(Op1,BResults)).
739
740 generate_args([],[],Res,[],BRes,_) :- length(Res,L), length(BRes,L).
741 generate_args([],[_Param|T],Res,[_|TA],BRes,OpName) :-
742 generate_args([],T,Res,TA,BRes,OpName).
743 generate_args([CSPArg|TC],[Param|T],Res,[CSPArg|TA],BRes,OpName) :- check_type_for_id(CSPArg,Param,OpName),
744 generate_args(TC,T,Res,TA,BRes,OpName).
745 generate_args([CSPArg|TC],[],[ReturnParam|TRes],[],[CSPArg|TBRes],OpName) :-
746 check_type_for_id(CSPArg,ReturnParam,OpName),
747 generate_args(TC,[],TRes,[],TBRes,OpName).
748 generate_args([H|T],[],[],[],[],OpName) :-
749 add_error(specfile,'CSP provides extra arguments: ',OpName:[H|T]).
750
751 check_type_for_id(Val,TID,OpName) :- get_texpr_type(TID,Type),
752 check_type(Type,Val,OpName:TID).
753
754 :- block check_type(?,-,?).
755 check_type(boolean,pred_true,_) :- !.
756 check_type(boolean,pred_false,_) :- !.
757 check_type(integer,int(_),_) :- !.
758 check_type(string,string(_),_) :- !.
759 check_type(global(GS),fd(_,GS),_) :- !.
760 check_type(couple(A,B),(VA,VB),OID) :- !, check_type(A,VA,OID), check_type(B,VB,OID).
761 check_type(set(_T),[],_) :- !.
762 check_type(set(_T),closure(_,_,_),_) :- !. % TO DO: check type signature of closure
763 check_type(set(T),[H|_],OID) :- !, check_type(T,H,OID).
764 check_type(set(T),avl_set((node(Y,_,_,_L,_R))),OID) :- !, check_type(T,Y,OID).
765 check_type(seq(T),V,OID) :- !, check_type(set(couple(integer,T)),V,OID).
766 % TO DO: record, freetype ; but do not appear in translation from CSP to B yet
767 check_type(Type,Value,OpName:TID) :-
768 def_get_texpr_id(TID,ID),
769 add_error(check_type_for_id,'Illegal CSP value for argument: ',OpName:ID:type(Type):value(Value)),
770 fail.
771
772 get_operation_internal_name(Op,Name) :- var(Op),!,
773 add_error(get_operation_internal_name,'Variable Transition: ',Op), Name=Op.
774 get_operation_internal_name('$initialise_machine',N) :- !, N='$initialise_machine'.
775 get_operation_internal_name('$setup_constants',N) :- !, N='$setup_constants'.
776 get_operation_internal_name('$partial_setup_constants',N) :- !, N='$partial_setup_constants'.
777 get_operation_internal_name(Op,Name) :- get_operation_name(Op,Name).
778
779 is_setup_constants_internal_name('$setup_constants').
780 is_setup_constants_internal_name('$partial_setup_constants').
781
782 % tool to get the basic operation/channel/event name of a transition:
783 get_operation_name(Op,Name) :- var(Op),!, add_error(get_operation_name,'Variable Transition: ',Op), Name=Op.
784 get_operation_name('-->'(F,_),N) :- !, functor(F,N,_).
785 %get_operation_name(io([Action|_],proc(_Nr,_PROC),_SPAN),F) :-
786 % animation_mode(promela),!,functor(Action,F,_).
787 get_operation_name(io(_V,Ch,_SPAN),N) :- csp_mode,!, functor(Ch,N,_).
788 get_operation_name(FullOperation,Name) :- functor(FullOperation,Functor,_),
789 translate_operation_name(Functor,Name).
790
791 get_operation_arguments(Op,Args) :- var(Op),!, add_error(get_operation_arguments,'Variable Transition: ',Op), Args=[].
792 get_operation_arguments('-->'(F,_ReturnValues),Args) :- !, F =.. [_|Args].
793 %get_operation_arguments(io([_Action|V],proc(_Nr,_PROC),_SPAN),Args) :-
794 % animation_mode(promela),!,Args=V.
795 get_operation_arguments(io(V,_Ch,_SPAN),Args) :- csp_mode,!, Args = V.
796 get_operation_arguments(FullOperation,Args) :- FullOperation =.. [_|Args].
797
798 get_operation_return_values_and_arguments('-->'(F,ReturnValues),ReturnValues,Args) :- !,
799 F =.. [_|Args].
800 get_operation_return_values_and_arguments(Op,[],Args) :- get_operation_arguments(Op,Args).
801
802 translate_operation_name('$initialise_machine',T) :- !,T='INITIALISATION'.
803 translate_operation_name('$setup_constants',T) :- !,T='SETUP_CONSTANTS'.
804 translate_operation_name('$partial_setup_constants',T) :- !,T='PARTIAL_SETUP_CONSTANTS'.
805 %translate_operation_name(InternalName,Res) :- !, Res=InternalName.
806 translate_operation_name(X,X).
807
808 :- use_module(bmachine,[b_get_operation_description/2]).
809 % get a textual description of a transition, based on description pragma
810 get_operation_description(OpTerm,Desc) :- b_or_z_mode,
811 get_operation_name(OpTerm,OpName),
812 b_get_operation_description(OpName,Desc).
813 % in future we could possible use operation parameter values to adapt description
814
815 :- use_module(state_space,[transition/4,transition_info/2]).
816 get_operation_description_for_transition_id(StateId,TransitionId,Desc) :-
817 transition(StateId,OpTerm,TransitionId,NextId), !,
818 (xtl_mode % TODO: allow other modes?
819 -> transition_info(TransitionId,description(Desc))
820 ; get_operation_description_for_transition(StateId,OpTerm,NextId,Desc)
821 ).
822 get_operation_description_for_transition_id(StateId,TransitionId,_) :-
823 format('No transition from state ~w with id ~w!~n', [StateId,TransitionId]),
824 fail.
825
826 :- use_module(probsrc(b_interpreter),[b_compute_explicit_epression_no_wf/6]).
827 :- use_module(probsrc(bmachine),[get_operation_description_template_expr/2]).
828 % get a description for operation from a given state; to do: we could provide destination state
829 get_operation_description_for_transition(StateId,OpTerm,NextId,Desc) :- xtl_mode, !,
830 transition(StateId,OpTerm,TransitionId,NextId),
831 transition_info(TransitionId,description(Desc)).
832 get_operation_description_for_transition(StateId,OpTerm,NextId,Desc) :- b_or_z_mode,
833 get_operation_name(OpTerm,OpName),
834 get_operation_description_template_expr(OpName,TemplateStringExpr),
835 visited_expression(NextId,State),
836 state_corresponds_to_initialised_b_machine(State,BState1),
837 visited_expression(StateId,BeforeState),
838 state_corresponds_to_initialised_b_machine(BeforeState,BState0),
839 extract_variables_from_state_as_primed(BState0,PrimedBefore),
840 append(PrimedBefore,BState1,BState),
841
842 % TODO: use NextId and add StateId as $0 vars
843 % maplist(create_primed_binding,InVariablesState,PrimedVars),
844 % append(PrimedVars,Out,PredState),
845 !,
846 get_local_state_for_operation_transition(OpName,OpTerm,LocalState),
847 %write(local_state(OpName,OpTerm,LocalState)),nl,
848 % TODO: process errors better
849 if(b_compute_explicit_epression_no_wf(TemplateStringExpr,LocalState,BState,string(SD),
850 operation_description(OpName),0),
851 Desc=SD,
852 (get_operation_description(OpTerm,D), ajoin(['Error evaluating template: ',D],Desc))
853 ).
854 get_operation_description_for_transition(_StateId,OpTerm,_NextStateId,Desc) :-
855 get_operation_description(OpTerm,Desc).
856
857 get_local_state_for_operation_transition(OpName,OperationTerm,LocalState) :-
858 get_local_states_for_operation_transition(OpName,OperationTerm,ParaStore,ResultStore),
859 append(ResultStore,ParaStore,LocalState).
860
861 % get local states for parameter values and result values extracted from a B operation transition term
862 get_local_states_for_operation_transition(OpName,OperationTerm,ParaStore,ResultStore) :- b_or_z_mode,!,
863 get_operation_return_values_and_arguments(OperationTerm,ReturnValues,ParaValues),
864 (b_get_machine_operation_for_animation(OpName,Results,Parameters,_Body,_OType,_TopLevel,OpPos)
865 -> true
866 ; is_setup_constants_internal_name(OpName) -> Results=[], Parameters=[], OpPos=unknown
867 ; add_error(specfile,'Unrecognized operation: ',OpName),
868 Results=[], Parameters=[], OpPos=unknown
869 ),
870 def_get_texpr_ids(Parameters,OpParameterNames), % also includes virtual parameters (show_eventb_any_arguments)
871 (ParaValues=[]
872 -> ParaStore=[]
873 ; (OpParameterNames=[], ParaValues=[_|_]
874 -> (get_preference(show_eventb_any_arguments,true)
875 -> add_message(specfile,'Ignoring additional parameters for:',OpName,OpPos)
876 ; add_warning(specfile,'Ignoring additional parameters for:',OpName,OpPos)
877 ),
878 ParaStore = []
879 ; create_local_store_for_operation(OpParameterNames,ParaValues,OpName,ParaStore)
880 )
881 ),
882 (ReturnValues=[]
883 -> ResultStore = []
884 ; %b_get_machine_operation_result_names(OpName,OpResults),
885 def_get_texpr_ids(Results,OpResults),
886 create_local_store_for_operation(OpResults,ReturnValues,OpName,ResultStore)
887 ).
888 get_local_states_for_operation_transition(OpName,OperationTerm,ParaStore,ResultStore) :- xtl_mode,
889 xtl_transition_parameters(OpName,ParaNames), !, % user-defined parameters found, otherwise use default params below
890 get_operation_return_values_and_arguments(OperationTerm,_ReturnValues,ParaValues), % ReturnValues should always be []
891 ResultStore = [],
892 maplist(gen_id_bind,ParaNames,ParaValues,ParaStore).
893 get_local_states_for_operation_transition(_OpName,OperationTerm,ParaStore,ResultStore) :- % not B mode or no user-defined params available in XTL mode
894 ResultStore = [],
895 get_operation_return_values_and_arguments(OperationTerm,ReturnValues,ParaValues),
896 ReturnValues = [], % should always succeed
897 gen_para_bind(ParaValues,1,ParaStore). % create [bind(para1,Val1),...]
898
899 gen_id_bind(ID,Val,bind(ID,Val)).
900
901 gen_para_bind([],_,[]).
902 gen_para_bind([H|T],Nr,[bind(ParaNr,H)|BT]) :- ajoin([para,Nr],ParaNr),
903 N1 is Nr+1,
904 gen_para_bind(T,N1,BT).
905
906 % create a store from parameter names and values:
907 create_local_store_for_operation([],[],_,Store) :- !, Store=[].
908 create_local_store_for_operation([Name|NT],[Val|VT],OpName,[bind(Name,Val)|StoreT]) :- !,
909 create_local_store_for_operation(NT,VT,OpName,StoreT).
910 create_local_store_for_operation([Name|NT],[],OpName,Store) :- !,
911 ajoin(['Missing values for operation ',OpName,':'],Msg),
912 add_error(specfile,Msg,[Name|NT]),
913 Store = [].
914 create_local_store_for_operation(_,V,OpName,Store) :-
915 ajoin(['Too many values for operation ',OpName,':'],Msg),
916 add_error(specfile,Msg,V),
917 Store = [].
918
919 :- use_module(library(between),[between/3]).
920
921 b_trans(State,OpName,Operation,NewState,PathInfo) :-
922 ? compute_operation_effect_max(State,OpName,Operation,NewState,PathInfo,_Max).
923
924 :- use_module(store,[store_updates_and_normalise/3]).
925
926 compute_operation_effect_max([],OpName,Operation,NewState,PathInfo,Max) :-
927 ? compute_operation_updates_on_expanded_store([],OpName,Operation,Updates,PathInfo,Max),
928 store_updates_and_normalise(Updates,[],NewState).
929 compute_operation_effect_max([H|T],OpName,Operation,NewState,PathInfo,Max) :-
930 ? compute_operation_updates_on_expanded_store([H|T],OpName,Operation,Updates,PathInfo,Max),
931 store_updates_and_normalise(Updates,[H|T],NewState).
932 compute_operation_effect_max(const_and_vars(ConstID,Vars),OpName,Operation,ResultingStore,PathInfo,Max) :-
933 prepare_state_for_specfile_trans(const_and_vars(ConstID,Vars),unknown,R),
934 %print(expanded_const_and_vars(ConstID)),nl,
935 compute_operation_effect_max(R,OpName,Operation,ResultingStore,PathInfo,Max).
936 compute_operation_effect_max(expanded_const_and_vars(ID,Vars,FullStore,Infos),OpName,Operation,NewState,PathInfo,Max) :-
937 ? compute_operation_updates_on_expanded_store(expanded_const_and_vars(ID,Vars,FullStore,Infos),
938 OpName,Operation,Updates,PathInfo,Max),
939 NewState = const_and_vars(ID,NewVars),
940 store_updates_and_normalise(Updates,Vars,NewVars).
941 compute_operation_effect_max(expanded_vars(FullStore,Infos),OpName,Operation,NewState,PathInfo,Max) :-
942 compute_operation_updates_on_expanded_store(expanded_vars(FullStore,Infos),
943 OpName,Operation,Updates,PathInfo,Max),
944 store_updates_and_normalise(Updates,FullStore,NewState).
945
946 compute_operation_effect_max(concrete_constants(ConstantsStore),'$initialise_machine',OpInit,ResultingStore,PathInfo,Max) :-
947 get_max_enablings_for_init(Max,'$initialise_machine',MaxForCall),
948 ? succeed_max_call_id('$initialise_machine',
949 b_interpreter:b_initialise_machine(ConstantsStore,InitialVars,InitialStore,PathInfo),MaxForCall),
950 create_initialisation_operation(InitialVars,OpInit),
951 (\+ preferences:preference(symmetry_mode,flood), /* TO DO : improve permutation to allow using const_and_vars optimisation */
952 ? visited_expression(ConstID,concrete_constants(ConstantsStore))
953 -> ResultingStore = const_and_vars(ConstID,InitialVars) /* avoid storing constant values again */
954 ; ResultingStore = InitialStore).
955 compute_operation_effect_max(root,'$setup_constants',OpSetup,concrete_constants(FilteredConstantsStore),[],Max) :-
956 b_machine_has_constants_or_properties,
957 get_max_enablings_for_init(Max,'$setup_constants',MaxForCall),
958 ? compute_constants(ConstantsStore,MaxForCall,Complete),
959 create_setup_constants_operation(ConstantsStore,Complete,OpSetup),
960 %%print_message('FOUND_CONSTANTS'(OpName)),
961 (get_preference(filter_unused_constants,true) % possibly disable if VisB or Custom Graph Definitions exist
962 -> exclude(unused_binding,ConstantsStore,FilteredConstantsStore)
963 ; FilteredConstantsStore=ConstantsStore).
964 compute_operation_effect_max(root,'$initialise_machine',OpInit,InitialStore,PathInfo,Max) :-
965 \+ b_machine_has_constants_or_properties,
966 get_max_enablings_for_init(Max,'$initialise_machine',MaxForCall),
967 empty_state(EmptyState),
968 succeed_max_call_id('$initialise_machine',
969 b_interpreter:b_initialise_machine(EmptyState,InitialVars,InitialStore,PathInfo),MaxForCall),
970 create_initialisation_operation(InitialVars,OpInit).
971
972
973 unused_binding(bind(C,_)) :- bmachine:b_is_unused_constant(C).
974
975 compute_constants(ConstantsStore,_Max,C) :-
976 % check if values have been computed and stored into a file before -- if yes, use them
977 load_constants(Stores,MaxReached),!,
978 C = complete_properties, % TODO: check that only complete properties stored or that we store this info
979 choose_loaded_solution(Stores,ConstantsStore,MaxReached).
980 compute_constants(ConstantsStore,Max,Complete) :-
981 % print('Searching for valid CONSTANTS'),nl,!,
982 ? succeed_max_call_id('$setup_constants',b_interpreter:b_set_up_concrete_constants(ConstantsStore,Complete),Max).
983
984 choose_loaded_solution(Stores,ConstantsStore,_MaxReached) :-
985 member(ConstantsStore,Stores).
986 choose_loaded_solution(_Stores,_ConstantsStore,true) :-
987 % provoke the setting of the "maximum reached flag"
988 succeed_max_call_id('$setup_constants',member(_,_),1),fail.
989
990 expand_const_and_vars_to_full_store(root,R) :- !,R=[].
991 expand_const_and_vars_to_full_store(concrete_constants(ConstantsStore),FullStore) :- !,
992 ConstantsStore = FullStore.
993 expand_const_and_vars_to_full_store(const_and_vars(ConstID,Vars),FullStore) :- !,
994 expand_const_and_vars(ConstID,Vars,FullStore).
995 expand_const_and_vars_to_full_store(expanded_const_and_vars(_ConstID,_Vars,ExpStore,_),FullStore) :- !,
996 FullStore = ExpStore.
997 expand_const_and_vars_to_full_store(expanded_vars(ExpStore,_),FullStore) :- !,
998 FullStore = ExpStore.
999 expand_const_and_vars_to_full_store(csp_and_b(_,BState),FullStore) :- !,
1000 expand_const_and_vars_to_full_store(BState,FullStore).
1001 expand_const_and_vars_to_full_store(R,R).
1002
1003 expand_const_and_vars(ConstID,Vars,FullStore) :-
1004 visited_expression(ConstID,concrete_constants(ConstantsStore)),
1005 %% This can take a while if the Constants are big !
1006 % print('exp: '),tools_printing:print_term_summary(ConstantsStore),nl,
1007 append(Vars,ConstantsStore,FullStore). % used to be Constants first, now consistent with b_initialise_machine2,
1008 % b_initialise_machine2 puts constants at end to make sharing of complete tail-list easier for successor states
1009
1010 expand_to_constants_and_variables(root,[],[]).
1011 expand_to_constants_and_variables(concrete_constants(ConstStore),ConstStore,[]).
1012 expand_to_constants_and_variables(const_and_vars(ConstID,VarStore),ConstStore,VarStore) :-
1013 visited_expression(ConstID,concrete_constants(ConstStore)).
1014 expand_to_constants_and_variables([],[],[]).
1015 expand_to_constants_and_variables([H|T],[],[H|T]).
1016 expand_to_constants_and_variables(csp_and_b(_,BState),ConstStore,VarStore) :-
1017 expand_to_constants_and_variables(BState,ConstStore,VarStore).
1018
1019 :- use_module(extrasrc(b_operation_cache),[compute_operation_on_expanded_store_cache/6]).
1020
1021 % compute operation effect on a store where all constants have been put into the environment
1022 compute_operation_updates_on_expanded_store(InState,OpName,Operation,NewState,PathInfo,Max) :-
1023 get_preference(try_operation_reuse,V), V \= false,
1024 b_or_z_mode, % now works with CSP || B
1025 %\+ animation_minor_mode(eventb), % projection used to confuse Event-B interpreter, see test 2138
1026 !,
1027 get_max_enablings_per_operation(Max,OpName,MaxForCall),
1028 compute_operation_on_expanded_store_cache(OpName,Operation,InState,NewState,PathInfo,MaxForCall).
1029 compute_operation_updates_on_expanded_store(Store,OpName,Operation,Updates,PathInfo,Max) :-
1030 extract_full_store(Store,FullStore),!,
1031 ? compute_operation_on_expanded_store2(FullStore,OpName,Operation,Updates,PathInfo,Max).
1032 compute_operation_updates_on_expanded_store(InState,OpName,Operation,Updates,PathInfo,Max) :-
1033 ? compute_operation_on_expanded_store2(InState,OpName,Operation,Updates,PathInfo,Max).
1034
1035 compute_operation_on_expanded_store2(InState,OpName,Operation,Updates,PathInfo,Max) :-
1036 get_max_enablings_per_operation(Max,OpName,MaxForCall),
1037 ? succeed_max_call_id(OpName,
1038 b_interpreter:b_execute_top_level_operation_update(OpName,Operation,InState,Updates,PathInfo),
1039 MaxForCall).
1040
1041 extract_full_store(expanded_const_and_vars(_,_,FS,_),Res) :- !, Res=FS.
1042 extract_full_store(expanded_vars(FS,_),Res) :- !, Res=FS.
1043
1044 create_initialisation_operation(_InitialVars,'$initialise_machine').
1045
1046 create_setup_constants_operation(_ConstantVars,complete_properties,R) :- !, R='$setup_constants'.
1047 create_setup_constants_operation(_ConstantVars,_,'$partial_setup_constants').
1048
1049 :- use_module(bmachine,[b_get_machine_operation_max/2]). % MAX_OPERATIONS_... DEFINITIONS
1050 get_max_enablings_per_operation_aux(OpName,RMax,RandomisedRestart) :-
1051 b_get_machine_operation_max(OpName,Max),
1052 !,
1053 (Max<0 -> RMax is -Max, RandomisedRestart=true ; RMax=Max, RandomisedRestart=false).
1054 get_max_enablings_per_operation_aux(_OpName,Max,false) :-
1055 preferences:preference(maxNrOfEnablingsPerOperation,Max).
1056
1057 max_operations_zero_for_operation(OpName) :-
1058 b_or_z_mode,
1059 b_top_level_operation(OpName),
1060 (b_get_machine_operation_max(OpName,0) -> true
1061 ; get_preference(maxNrOfEnablingsPerOperation,0)).
1062
1063 get_max_enablings_per_operation(Max,OpName,MaxForCall) :-
1064 (var(Max) -> get_max_enablings_per_operation_aux(OpName,Max,RandomisedRestart) ; RandomisedRestart=false),
1065 (RandomisedRestart=true,
1066 get_preference(randomise_enumeration_order,true)
1067 -> % we succeed Max times with the value 1, thus forcing a randomised restart
1068 MaxForCall=1, between(1,Max,Retry), format('Randomised Restart ~w for ~w~n',[Retry,OpName])
1069 ; % we succeed once with the value Max
1070 MaxForCall is Max).
1071
1072 get_max_enablings_for_init(Max,Op,MaxForCall) :-
1073 (var(Max) -> get_preference(maxNrOfInitialisations,Max) ; true),
1074 (Max>1,
1075 get_preference(randomisedRestartInitalisations,true),
1076 get_preference(randomise_enumeration_order,true)
1077 -> % we succeed Max times with the value 1, thus forcing a randomised restart
1078 MaxForCall=1, between(1,Max,Retry), format('Randomised Restart ~w for ~w~n',[Retry,Op])
1079 ; % we succeed once with the value Max
1080 MaxForCall=Max).
1081
1082 /* PROPERTIES */
1083
1084 property(const_and_vars(ConstID,Vars),Property) :- b_or_z_mode,
1085 expand_const_and_vars(ConstID,Vars,FullStore),!,
1086 property(FullStore,Property).
1087 property(csp_and_b(CSPState,BState),Property) :- animation_mode(csp_and_b),!,
1088 %% print(checking_csp_and_b(CSPState)),nl,
1089 expand_const_and_vars_to_full_store(BState,FBState),
1090 (xtl_interface:cspm_property(CSPState,Property) ;
1091 b_property(FBState,Property)).
1092 property(State,Property) :- animation_mode(AM),
1093 (AM = b -> b_property(State,Property)
1094 ; AM=xtl -> xtl_interface:xtl_property(State,Property)
1095 ; AM=cspm -> xtl_interface:cspm_property(State,Property)
1096 ; AM=csp_and_b -> b_property(State,Property) % State should be root
1097 ).
1098
1099 %b_property(const_and_vars(ConstID,Vars),Prop) :- !,
1100 % expand_const_and_vars(ConstID,Vars,FullStore),
1101 % b_property(FullStore,Prop).
1102 b_property(root,Prop) :- !, b_preference_par(PARA,Op,VAL), Prop=.. [Op,PARA,VAL].
1103 b_property([H|T],non_ground(Var)) :- debug:debug_mode(on),
1104 member(bind(Var,Val),[H|T]),\+(ground(Val)).
1105 b_property([H|T],Prop) :- elementary_prop([H|T],Prop).
1106 b_property([],Prop) :- elementary_prop([],Prop).
1107 b_property(concrete_constants(DB),Prop) :- elementary_prop(DB,Prop).
1108
1109
1110
1111 :- use_module(preferences).
1112 :- use_module(b_global_sets,[b_global_set/1, b_fd_card/2,inferred_minimum_global_set_cardinality/2,
1113 inferred_maximum_global_set_cardinality/2, unfixed_deferred_set/1]).
1114
1115 % preference values shown as properties of the root node
1116 b_preference_par('MAXINT','=',MaxInt) :- get_preference(maxint,MaxInt).
1117 b_preference_par('MININT','=',MinInt) :- get_preference(minint,MinInt).
1118 b_preference_par(card(GlobalSet),Op,Card) :-
1119 b_global_set(GlobalSet),
1120 b_fd_card(GlobalSet,RCard),
1121 % provide feedback if unfixed_deferred_set
1122 (inferred_maximum_global_set_cardinality(GlobalSet,MaxCard),
1123 (inferred_minimum_global_set_cardinality(GlobalSet,MinCard) -> true ; MinCard=1),
1124 MinCard \= MaxCard,
1125 Op = ':', Card = '..'(MinCard,MaxCard)
1126
1127 ;
1128
1129 inferred_minimum_global_set_cardinality(GlobalSet,MinCard),
1130 \+ (inferred_maximum_global_set_cardinality(GlobalSet,_)),
1131 Op='>=',Card=MinCard % show minimum cardinality info
1132
1133 ;
1134
1135 Op= '=', (unfixed_deferred_set(GlobalSet)
1136 -> ajoin([RCard,' (assumed for deferred set)'],Card) ; Card=RCard)
1137 ).
1138
1139 /* --------------------------------------------------------- */
1140
1141
1142 elementary_prop(DB,Prop) :-
1143 member(bind(Var,Val),DB), %print(var_prop(Var)),nl_time,
1144 elementary_prop3(Val,Var,Prop).
1145
1146 :- use_module(custom_explicit_sets,[is_avl_relation/1,is_avl_partial_function/1,get_first_avl_elements/4, avl_approximate_size/3]).
1147 elementary_prop3(Val,Var,Prop) :- var(Val),!, Prop = '='(Var,'_VAR_').
1148 elementary_prop3(avl_set(Avl),Var,Prop) :- !,
1149 (show_avl_set(Avl) % \+ custom_explicit_sets:is_avl_sequence(Avl))
1150 -> elementary_fun_prop(avl_set(Avl),Var,Prop)
1151 ; elementary_var_prop(avl_set(Avl),Var,Prop)).
1152 elementary_prop3([H|T],Var,Prop) :- H=(_,_),
1153 get_preference(show_function_tuples_in_property,true),!,
1154 elementary_fun_prop([H|T],Var,Prop).
1155 elementary_prop3(Val,Var,Prop) :- elementary_var_prop(Val,Var,Prop).
1156
1157 show_avl_set(AVL) :- get_preference(show_function_tuples_in_property,true),
1158 is_avl_relation(AVL),
1159 avl_approximate_size(AVL,0,Size), Size < 257, % only the first 30 will be shown by get_relation_element anyway
1160 is_avl_partial_function(AVL).
1161
1162
1163 :- use_module(bmachine,[b_is_variable/2]).
1164 elementary_var_prop(Val,Var,Prop) :-
1165 % TODO: use translate:translate_bvalue_for_expression/3
1166 animation_minor_mode(tla),!,
1167 ( identifier_has_tla_type(Var,TlaType) ->
1168 translate_bvalue_with_tlatype(Val,TlaType,Text)
1169 ;
1170 translate_bvalue(Val,Text)),
1171 Prop = '='(Var,Text).
1172 elementary_var_prop(Val,Var,Prop) :-
1173 (var_cst_type(Var,Type)
1174 -> translate_bvalue_with_type_and_limit(Val,Type,320,Text)
1175 ; translate_bvalue_with_type_and_limit(Val,any,320,Text)), % translate_properties_with_limit uses 320 Limit
1176 Prop = '='(Var,Text).
1177
1178 identifier_has_tla_type(Id,Type) :-
1179 get_texpr_id(TId,Id),
1180 (b_get_machine_constants(Ids)
1181 ;b_get_machine_variables(Ids)),
1182 member(TId,Ids),!,
1183 get_texpr_info(TId,Infos),
1184 memberchk(tla_type(Type),Infos).
1185 % to do: use b_is_variable + translate_bvalue_with_type
1186 elementary_fun_prop(Val,Var,Prop) :-
1187 simple(Prop), % will only succeed if Prop is var or atom; translate_bexpression will raise error if Prop is compound
1188 nonvar(Val),
1189 (var_cst_type(Var,Type),dom_range_type(Type,Dom,Ran) -> true ; Type=any,Dom=any, Ran=any),
1190 get_relation_element(Val,X,Y), % Show value in form: Var(X) = Y
1191 create_texpr(identifier(Var),Type,[],Fun),
1192 create_value(X,Dom,Arg),
1193 create_texpr(function(Fun,Arg),Ran,[],Lhs),
1194 create_value(Y,Ran,Rhs),
1195 create_texpr(equal(Lhs,Rhs),pred,[],Expr),
1196 translate_bexpression_with_limit(Expr,80,Prop).
1197
1198 var_cst_type(Name,Type) :- (b_is_variable(Name,Type) ; b_is_constant(Name,Type)).
1199 dom_range_type(seq(R),integer,R).
1200 dom_range_type(set(couple(D,R)),D,R).
1201
1202 get_relation_element(avl_set(A),X,Y) :- custom_explicit_sets:is_avl_relation(A),
1203 !, %preferences:preference(expand_avl_upto,Limit),
1204 Limit=30, % reduced limit, as now we can inspect with evaluation view
1205 get_first_avl_elements(A,Limit,Els,CutOff),
1206 (member((X,Y),Els), X\=term(_)
1207 ;
1208 CutOff=not_all, X='...', Y='...').
1209 get_relation_element(Value,X,Y) :-
1210 member((X,Y),Value). /* otherwise we have a record structure */
1211
1212 create_value('...',_,R) :- !, R = b(string('...'),string,[]).
1213 create_value(X,T,R) :-
1214 create_texpr(value(X),T,[],R).
1215
1216
1217 :- use_module(bmachine,[b_show_machine_representation/4]).
1218 :- use_module(probcspsrc(haskell_csp_analyzer),[get_internal_csp_representation/1]).
1219 get_internal_representation(X) :- get_internal_representation(X,true,false,none).
1220 get_internal_representation(X,AdditionalInfo,UnsetMinorMode,Typing) :- animation_mode(AM),
1221 get_internal_aux(AM,X,AdditionalInfo,UnsetMinorMode,Typing).
1222 get_internal_aux(b,X,AdditionalInfo,UnsetMinorMode,Typing) :- !,
1223 b_show_machine_representation(X,AdditionalInfo,UnsetMinorMode,Typing).
1224 % UnsetMinorMode=true means we try and generate classical B syntax
1225 get_internal_aux(cspm,X,_,_,_) :- !, get_internal_csp_representation(X).
1226 get_internal_aux(csp_and_b,Res,AdditionalInfo,UnsetMinorMode,Typing) :- !,
1227 append("CSP||B - B Part only",X,Res),
1228 b_show_machine_representation(X,AdditionalInfo,UnsetMinorMode,Typing).
1229 get_internal_aux(_,X,_,_,_) :- X="Internal representation only available in B or CSP mode".
1230
1231
1232 :- use_module(probcspsrc(haskell_csp),[channel/2]).
1233 :- use_module(bmachine,[b_top_level_operation/1, b_top_level_feasible_operation/1]).
1234 get_possible_event(OpName) :- b_or_z_mode,
1235 %b_is_operation_name(OpName).
1236 ? b_top_level_operation(OpName).
1237 get_possible_event(Channel) :- csp_mode,
1238 channel(Channel,_).
1239 % what about csp_and_b mode ?
1240
1241 get_feasible_event(OpName) :- b_or_z_mode,
1242 %b_is_operation_name(OpName).
1243 ? b_top_level_feasible_operation(OpName).
1244 get_feasible_event(Channel) :- csp_mode,
1245 channel(Channel,_).
1246
1247
1248 get_possible_language_specific_top_level_event(OpName,ResultNames,ParameterNames) :-
1249 b_or_z_mode,!,
1250 get_possible_b_top_level_event(OpName,ResultNames,ParameterNames).
1251 get_possible_language_specific_top_level_event(TransName,[],ParameterNames) :- xtl_mode, !,
1252 xtl_transition_parameters(TransName,ParameterNames).
1253 get_possible_language_specific_top_level_event(Channel,unknown,unknown) :- csp_mode,
1254 channel(Channel,_).
1255
1256 get_possible_b_top_level_event('$setup_constants',[],Ids) :-
1257 b_machine_has_constants_or_properties,
1258 b_get_machine_constants(TIds), maplist(get_texpr_id,TIds,Ids).
1259 get_possible_b_top_level_event('$initialise_machine',[],Ids) :-
1260 b_get_machine_variables(TIds), maplist(get_texpr_id,TIds,Ids).
1261 get_possible_b_top_level_event(OpName,ResultNames,ParameterNames) :-
1262 b_top_level_operation(OpName),
1263 %b_get_machine_operation(OpName,Results,RealParameters,_RealBody,_OType,_OpPos),
1264 b_get_machine_operation_for_animation(OpName,Results,AllParameters,_RealBody,_OType,_TL),
1265 maplist(get_texpr_id,Results,ResultNames),
1266 maplist(get_texpr_id,AllParameters,ParameterNames).
1267
1268 % obtain a textual description of specification category names
1269 get_specification_description(Category,Name) :-
1270 animation_mode(Mode),
1271 (animation_minor_mode(Minor) -> true ; Minor = none), % there could be several minor modes !
1272 (get_specific_description(Mode,Minor,Category,N) -> Name=N
1273 ; get_default_description(Category,N) -> Name = N
1274 ; add_error(get_specification_description,'Unknown category: ',Category),
1275 Name=Category).
1276
1277 get_specific_description(cspm,_,C,N) :- get_csp_description(C,N).
1278 get_specific_description(b,eventb,C,N) :- get_eventb_description(C,N).
1279 get_specific_description(b,tla,C,N) :- get_tla_description(C,N).
1280 get_specific_description(b,alloy,C,N) :- get_alloy_description(C,N).
1281
1282 get_csp_description(operations,'CHANNELS').
1283 get_csp_description(operation,'CHANNEL').
1284 get_csp_description(assertions,'CSP_ASSERTIONS').
1285 get_csp_description(machine,'CSP_SPECIFICATION').
1286 get_csp_description(operations_lc,'events').
1287
1288 get_tla_description(properties,'ASSUME').
1289 get_tla_description(machine,'MODULE').
1290 get_tla_description(operation,'ACTION'). % no key word
1291 get_tla_description(operations,'ACTIONS'). % no key word
1292 get_tla_description(operations_lc,'actions').
1293
1294 get_eventb_description(properties,'AXIOMS').
1295 get_eventb_description(assertions,'THEOREMS').
1296 get_eventb_description(operations,'EVENTS').
1297 get_eventb_description(operation,'EVENT').
1298 get_eventb_description(operations_lc,'events').
1299 get_eventb_description(machine,'MODEL').
1300
1301 get_alloy_description(machine,'MODULE').
1302 get_alloy_description(sets,'SIGNATURES'). % abstract
1303 get_alloy_description(operations,'RUNS').
1304 get_alloy_description(operation,'RUN').
1305
1306 get_default_description(constraints,'CONSTRAINTS').
1307 get_default_description(properties,'PROPERTIES').
1308 get_default_description(assertions,'ASSERTIONS').
1309 get_default_description(invariant,'INVARIANT').
1310 get_default_description(invariants,'INVARIANTS').
1311 get_default_description(operations,'OPERATIONS').
1312 get_default_description(operation,'OPERATION').
1313 get_default_description(operations_lc,'operations').
1314 get_default_description(machine,'MACHINE').
1315 get_default_description(constants,'CONSTANTS').
1316 get_default_description(variables,'VARIABLES').
1317 get_default_description(initialisation,'INITIALISATION').
1318 get_default_description(sets,'SETS').
1319 get_default_description(goal,'GOAL').
1320 get_default_description(definition,'DEFINITION').
1321 get_default_description(definitions,'DEFINITIONS').
1322 get_default_description(variants,'VARIANTS').