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(preferences,
6		[init_preferences/0,
7		tcltk_get_preference/2,
8		get_computed_preference/2,
9		get_preference/2, get_preferences_list/1, get_preferences_list/2,
10		set_preference/2,
11		call_with_preference/3,
12		temporary_set_preference/2, temporary_set_preference/3,
13		reset_temporary_preference/1, reset_temporary_preference/2,
14		reset_all_temporary_preferences/0,
15		preference_category/2, preference_description/2, preference_val_type/2, preference_val_type_list/2, preference_default_value/2,
16		preference/2,
17		is_of_type/2, pref_type_synonym/2,
18		get_ith_preference_type/2, get_ith_preference_value/2, set_ith_preference_value/2,
19		get_ith_preference_type/3, get_ith_preference_value/3, set_ith_preference_value/3,
20		virtual_preference_category/2,
21		load_preferences/1,save_preferences/1,
22		backup_preferences/0, revert_preferences/0, reset_to_defaults/1, reset_for_benchmarking/0,
23		set_preference_group/2,
24		activate_recent_documents/0,deactivate_recent_documents/0,
25		print_preferences/0, print_preferences/1,
26		get_preference_with_warnings/2,
27
28		add_recent_document/1, /* use to add a file to recent documents list */
29		get_recent_documents/1, clear_recent_documents/0,
30		add_element_to_history/3, get_history_elements_list/3,
31
32		eclipse_preference/2, print_eclipse_prefs/0,
33		advanced_eclipse_preference/2,
34		obsolete_eclipse_preference/1, obsolete_preference/1,
35		deprecated_eclipse_preference/4,
36		get_non_default_preferences/1,
37		has_default_value/1,
38
39		get_time_out_preference_with_factor/2,
40		add_time_outs/3,
41		time_out_preference_disabled/0,
42
43		get_prob_application_type/1, set_prob_application_type/1,
44		try_get_program_path/2,
45
46		valid_rgb_color/1, valid_dot_shape/1, valid_dot_line_style/1, valid_dot_node_style/1
47		]).
48
49		:- meta_predicate call_with_preference(0,-,-).
50
51		:- use_module(tools, [print_message/1, get_modulename_filename/2]).
52		:- use_module(tools_meta, [safe_on_exception/3, safe_on_exception_silent/3, translate_term_into_atom/2]).
53		:- use_module(tools_platform, [host_platform/1]).
54		:- use_module(tools_strings, [string_concatenate/3, ajoin/2]).
55		:- use_module(tools_printing, [print_dynamic_pred/4,print_error/1,format_error_with_nl/2]).
56		:- use_module(version, [version_str/1, revision/1, lastchangeddate/1]).
57
58		:- use_module(module_information,[module_info/2]).
59		:- module_info(group,infrastructure).
60		:- module_info(description,'This module manages the various preferences of ProB. Preferences can be grouped, saved and restored and validated from file.').
61
62		:- load_files(library(system), [when(compile_time), imports([environ/2])]).
63
64		%:- use_module(debug). % no longer required
65		% :- use_module(self_check). % tests now in basic_tests
66		:- use_module(error_manager).
67		:- use_module(library(lists)).
68
69		:- volatile change_flag/0.
70		:- dynamic change_flag/0.
71		assert_change_flag :- assertz(change_flag).
72
73		% --------------
74
75		init_preferences :- retractall(change_flag),
76		reset_to_defaults, check_preferences.
77
78		check_preferences :-
79	?	preference_default_value(P,_), %print(check(P)),nl,
80		check_preference(P),
81		fail.
82		check_preferences :-
83	?	(preference_description(P,_) ; preference_category(P,_)),
84		\+ preference_default_value(P,_),
85		add_internal_error('Preference has no default value:',check_preference(P)).
86		check_preferences. % :- print_message('Preferences Checked').
87
88		check_preference(P) :- \+ preference(P,_),
89		add_internal_error('Preference has no value:',check_preference(P)),fail.
90		check_preference(P) :- \+ preference_val_type(P,_),
91		add_internal_error('Preference has no value type:',check_preference(P)),fail.
92		check_preference(P) :- \+ preference_category(P,_),
93		add_internal_error('Preference has no category:',check_preference(P)),fail.
94		check_preference(P) :- \+ preference_description(P,_),
95		add_internal_error('Preference has no description:',check_preference(P)),fail.
96		check_preference(P) :-
97		preference(P,Val), preference_val_type(P,T),
98	?	\+ is_of_type(Val,T),
99		add_internal_error('Preference value of incorrect type:',is_of_type(P,Val,T)),fail.
100		check_preference(P) :- preference_category(P,C1), preference_category(P,C2), C1 \= C2, !,
101		add_internal_error('Multiple categories for preference:',category(P,C1,C2)).
102		check_preference(_).
103
104		% --------------
105
106		load_preferences(File) :- print_message(load_preferences(File)),
107		safe_on_exception_silent(Exception1,
108		open(File,read,Stream,[encoding(utf8)]),
109		(print_see_exception(Exception1,File),fail)),
110		!,
111		load_preferences2(Stream,File).
112		load_preferences(_).
113
114		load_preferences2(Stream,File) :-
115		safe_on_exception(_Exc2,read_preferences(Stream),
116		(print_message('### corrupted preference file'),print_message(File))),
117		!.
118		%print(loaded_preferences(File)),nl.
119		load_preferences2(_Stream,File) :-
120		print_message('### error occured reading preference file'),
121		print_message(File).
122
123		print_see_exception(error(existence_error(_,_),_),File) :- !,
124		print_message('preference file does not exist, ProB will create a fresh one'),print_message(File).
125		print_see_exception(Exception,File) :-
126		print_message('### cannot open preference file'),print_message(File),
127		print_message(Exception).
128
129		read_preferences(Stream) :- clear_dynamic_preference_predicates,
130		call_cleanup(read_preferences2(Stream),close(Stream)).
131		read_preferences2(Stream) :-
132		read(Stream,Term),
133		Term \= end_of_file, !, %print(pref(Term)),nl,
134		(Term = preference(Pref,NVal)
135		-> (volatile_preference(Pref) -> true
136		; retract(preference(Pref,_)) -> assertz(preference(Pref,NVal))
137		; obsolete_preference(Pref) -> print_message(obsolete(Pref))
138		; add_message(load_preferences,'Unknown preference in preference file: ',Pref)
139		)
140		; Term = ':-'(dynamic(_)) -> true
141		; dynamic_preference_predicate(Term) -> assertz(Term)
142		; (Term = (Head:-fail),dynamic_preference_predicate(Head)) -> true
143		; add_error(load_preferences,'Unrecognised:',Term)
144		),
145		read_preferences2(Stream).
146		read_preferences2(_Stream) :- retractall(change_flag), recompute_nr_of_recent_documents.
147		%recompute_nr_of_searched_and_replaced_patterns.
148		%recompute_nr_of_eval_history_elements.
149
150		clear_dynamic_preference_predicates :- dynamic_preference_predicate(X), retractall(X),fail.
151		clear_dynamic_preference_predicates.
152
153		% declare which dynamic predicates are stored in Preference file
154		dynamic_preference_predicate(recent_documents(_)).
155		dynamic_preference_predicate(searched_patterns(_)).
156		dynamic_preference_predicate(replaced_patterns(_)).
157		dynamic_preference_predicate(eval_history_elements(_)).
158		dynamic_preference_predicate(eval_csp_history_elements(_)).
159		dynamic_preference_predicate(checked_ltl_formulas(_)).
160
161		save_preferences(File) :- change_flag,!,
162		% catch exception in case we cannot write preferences file
163		catch(save_preferences2(File), Exception, (
164		string_concatenate('Cannot write preferences file ',File,Msg),
165		add_error(save_preferences,Msg,Exception)
166		)).
167		save_preferences(File) :- print_message(preferences_unchanged(File)).
168
169		save_preferences2(File) :-
170		print_message(save_preferences(File)),
171		open(File,write,S,[encoding(utf8)]),
172		(print_preferences_for_saving(S) -> true ; true),
173		close(S),
174		retractall(change_flag).
175
176		% if we have temporarily set a preference, then print the old value
177		print_preferences_for_saving(Stream) :-
178		preference_default_value(Pref,_),
179		preference(Pref,CurVal),
180		(temp_pref(Pref,OldVal,CurVal) -> V=OldVal ; V=CurVal), % temp_pref can be nested !, will not print initial value in this case
181		write_term(Stream,preference(Pref,V),[quoted(true)]),print(Stream,'.'),nl(Stream),
182		fail.
183		print_preferences_for_saving(Stream) :- print_dynamic_preferences(Stream).
184
185		print_preferences :- print_preferences(user_output).
186		print_preferences(Stream) :-
187		print_dynamic_pred(Stream,preferences,preference,2),
188		print_dynamic_preferences(Stream).
189
190		print_dynamic_preferences(Stream) :-
191	?	dynamic_preference_predicate(P), functor(P,F,N),
192		print_dynamic_pred(Stream,preferences,F,N),fail.
193		print_dynamic_preferences(_).
194
195		% now in basic_tests.pl
196		%:- assert_must_succeed(get_non_default_preferences(_)).
197
198		get_non_default_preferences(list(L)) :-
199		findall(PS,non_default_pref(PS),L).
200
201		has_default_value(Pref) :- get_preference(Pref,Val), preference_default_value(Pref,Val).
202
203	?	non_default_pref(PrefStr) :- preference(Pref,Val), preference_default_value(Pref,DVal),
204		DVal \= Val,
205	?	(eclipse_preference(ECLPREF,Pref) ->
206		ajoin([Pref,' (',ECLPREF,') == ',Val,' (default = ',DVal, ')'],PrefStr)
207		;
208		ajoin([Pref,' == ',Val,' (default = ',DVal, ')'],PrefStr)
209		).
210
211		:- volatile change_flag_backup/0, pref_backup/2.
212		:- dynamic change_flag_backup/0.
213		:- dynamic pref_backup/2.
214
215		backup_preferences :- retractall(pref_backup(_,_)),retractall(change_flag_backup),
216	?	preference(P,Val), assertz(pref_backup(P,Val)),fail.
217	?	backup_preferences :- (change_flag -> assertz(change_flag_backup) ; true).
218
219	?	revert_preferences :- \+(pref_backup(_,_)),!, print_error('No previously backed-up preferences in revert_preferences!').
220	?	revert_preferences :- retractall(preference(_,_)),pref_backup(P,Val), assertz(preference(P,Val)),fail.
221		revert_preferences :- retractall(change_flag), (change_flag_backup -> assert_change_flag ; true).
222
223		reset_to_defaults :-
224		reset_to_defaults(_).
225
226	?	reset_to_defaults(Category) :- preference_category(Pref,Category),
227		preference_default_value(Pref,Val),
228		retractall(preference(Pref,_)),
229		assertz(preference(Pref,Val)),
230		fail.
231		reset_to_defaults(_) :- assert_change_flag.
232
233
234		reset_for_benchmarking :-
235		set_preference(maxNrOfInitialisations,3),
236		set_preference(randomisedRestartInitalisations,false),
237		set_preference(maxNrOfEnablingsPerOperation,10),
238		set_preference(maxint,4),
239		set_preference(minint,-1),
240		set_preference(time_out,3500),
241		set_preference(globalsets_fdrange,3),
242		set_preference(show_initialisation_arguments,true),
243		set_preference(provide_trace_information,false),
244		set_preference(prob_profiling_on,false),
245		set_preference(prob_source_profiling_on,false),
246		set_preference(performance_monitoring_on,false),
247		set_preference(data_validation_mode,false),
248		set_preference(find_abort_values,false),
249		set_preference(raise_abort_immediately,false),
250		set_preference(expand_forall_upto,100),
251		%set_preference(animate_skip_operations,true),
252		set_preference(cspm_animate_all_processes_without_arguments,false),
253		set_preference(cspm_animate_all_processes,false).
254		% set_preference(convert_closures_into_explicit_form_for_store,true).
255
256
257		call_with_preference(Call,Pref,Val) :-
258		temporary_set_preference(Pref,Val,CHNG1),
259		call_cleanup(Call,
260		reset_temporary_preference(Pref,CHNG1)).
261
262
263		% ------------------------
264
265
266		% now in basic_tests.pl
267		%:- assert_must_succeed( \+((eclipse_preference(_EP,P), \+preference_default_value(P,_Val)))).
268		% the order is also the order in which they appear in ProB for Rodin:
269		eclipse_preference('DEFAULT_SETSIZE',globalsets_fdrange).
270		eclipse_preference('MAX_INITIALISATIONS',maxNrOfInitialisations).
271		eclipse_preference('MAX_OPERATIONS',maxNrOfEnablingsPerOperation).
272		eclipse_preference('MAXINT',maxint).
273		eclipse_preference('MININT',minint).
274		%eclipse_preference('ANIMATE_SKIP_OPERATIONS',animate_skip_operations).
275		%eclipse_preference('EXPAND_CLOSURES_FOR_STATE',convert_closures_into_explicit_form_for_store).
276		eclipse_preference('TIME_OUT',time_out).
277		eclipse_preference('NUMBER_OF_ANIMATED_ABSTRACTIONS',number_animated_abstractions).
278		eclipse_preference('NUMBER_OF_SKIPPED_REFINEMENTS',number_skipped_refined_machines).
279		eclipse_preference('USE_RECORD_CONSTRUCTION',use_record_construction).
280		eclipse_preference('USE_IGNORE_PRAGMAS',use_ignore_pragmas).
281
282		eclipse_preference('COMPRESSION',try_use_state_packing).
283		eclipse_preference('OPERATION_REUSE',try_operation_reuse). % was initially not available for Event-B; see eg. prob_examples/examples/EventBPrologPackages/Advance_WP2/v6_Sep2014/ex_mch.eventb -animate 300 which generated deadlock
284		eclipse_preference('OPERATION_REUSE_FOR_INVARIANTS',try_operation_reuse_for_invariants).
285		eclipse_preference('PROOF_INFO',use_po).
286
287		eclipse_preference('RANDOMISE_ENUMERATION_ORDER',randomise_enumeration_order).
288		eclipse_preference('TRY_FIND_ABORT',find_abort_values). % maybe rename into TRY_FIND_WD_ERROR ?
289		eclipse_preference('CLPFD',use_clpfd_solver).
290		eclipse_preference('CLPFD_LABELING',clpfd_solver_label_option).
291		eclipse_preference('CHR',use_chr_solver).
292		eclipse_preference('SMT',use_smt_mode).
293		eclipse_preference('SOLVER_STRENGTH',solver_strength).
294		eclipse_preference('CSE',use_common_subexpression_elimination).
295		eclipse_preference('STATIC_ORDERING',use_static_ordering).
296
297		%eclipse_preference('SYMMETRY_MARKERS',use_symmetry_marker_hash).
298		%eclipse_preference('PERMUTATION_FLOODING',enable_permutation_reducation).
299		eclipse_preference('SYMMETRY_MODE',symmetry_mode).
300		%eclipse_preference('KODKOD',try_kodkod_on_load). % new preference try_solver_on_load
301		eclipse_preference('SOLVER_FOR_PROPERTIES',use_solver_on_load).
302
303		eclipse_preference('SYMBOLIC',convert_comprehension_sets_into_closures).
304		eclipse_preference('SYMBOLIC_LIMIT',comprehension_set_symbolic_limit).
305		eclipse_preference('MEMO',use_closure_expansion_memoization).
306		eclipse_preference('MEMOIZE_FUNCTIONS',use_function_memoization).
307
308		eclipse_preference('AUTO_DETECT_THEORY_MAPPING',auto_detect_theory_ops).
309		eclipse_preference('PROB_VERSION_INFO',prob_version_info).
310		eclipse_preference('PROB_REVISION_INFO',prob_revision_info).
311		eclipse_preference('PROB_LASTCHANGED_INFO',prob_lastchangedate_info).
312
313	?	eclipse_preference(A,B) :- advanced_eclipse_preference(A,B).
314
315		% these will not be shown in ProB for Rodin for example:
316		advanced_eclipse_preference('OPTIMIZE_AST',optimize_ast).
317		advanced_eclipse_preference('NORMALIZE_AST',normalize_ast).
318		advanced_eclipse_preference('STATIC_SYMMETRY_DETECTION',use_static_symmetry_detection).
319		advanced_eclipse_preference('ENUMERATION_ORDER_ANALYSIS',perform_enumeration_order_analysis). % should probably not be disabled in Rodin
320		advanced_eclipse_preference('DETECT_LAMBDAS',detect_lambdas).
321		advanced_eclipse_preference('DATA_VALIDATION',data_validation_mode).
322		advanced_eclipse_preference('RAISE_ABORT_IMMEDIATELY',raise_abort_immediately).
323		%advanced_eclipse_preference('WARN_WHEN_EXPANDING_INFINITE_CLOSURES',warn_when_expanding_infinite_closures).
324		advanced_eclipse_preference('ENUMERATE_INFINITE_TYPES',allow_enumeration_of_infinite_types).
325		advanced_eclipse_preference('KODKOD_ONLY_FULL',kodkod_for_components).
326		advanced_eclipse_preference('KODKOD_RAISE_WARNINGS',kodkod_raise_warnings).
327		advanced_eclipse_preference('KODKOD_MAX_NR_SOLS',kodkod_max_nr_solutions).
328		advanced_eclipse_preference('KODKOD_SYMMETRY',kodkod_symmetry_level).
329		advanced_eclipse_preference('KODKOD_SAT_SOLVER',kodkod_sat_solver).
330		advanced_eclipse_preference('CSE_PRED',use_common_subexpression_also_for_predicates).
331		advanced_eclipse_preference('CSE_WD_ONLY',use_common_subexpression_wd_only).
332		advanced_eclipse_preference('CSE_SUBST',use_common_subexpression_also_for_substitutions).
333		advanced_eclipse_preference('USELESS_CODE_ELIMINATION',useless_code_elimination).
334		advanced_eclipse_preference('ALLOW_INCOMPLETE_SETUP_CONSTANTS',allow_incomplete_partial_setup_constants).
335		advanced_eclipse_preference('PARTITION_PROPERTIES',partition_predicates).
336		advanced_eclipse_preference('PARTITION_PROPERTIES_INLINE',partition_predicates_inline_equalities).
337		advanced_eclipse_preference('SHOW_EVENTB_ANY_VALUES',show_eventb_any_arguments).
338		advanced_eclipse_preference('RANDOMISE_OPERATION_ORDER',randomise_operation_order).
339		advanced_eclipse_preference('RANDOMISED_RESTART_INIT',randomisedRestartInitalisations).
340		advanced_eclipse_preference('EXPAND_FORALL_UPTO',expand_forall_upto).
341		advanced_eclipse_preference('LIFT_EXISTS',lift_existential_quantifiers).
342		advanced_eclipse_preference('REMOVE_IMPLIED_CONSTRAINTS',remove_implied_constraints). % imply
343		advanced_eclipse_preference('MAX_DISPLAY_SET',expand_avl_upto).
344		advanced_eclipse_preference('SHOW_FORMULA_FUNCTOR',show_bvisual_formula_functor_from).
345		advanced_eclipse_preference('SHOW_FORMULA_PROOF_INFO',show_bvisual_proof_info_icons).
346		advanced_eclipse_preference('SHOW_FORMULA_EXPLANATIONS',show_bvisual_formula_explanations).
347		advanced_eclipse_preference('WARN_IF_DEFINITION_HIDES_VARIABLE',warn_if_definition_hides_variable).
348		advanced_eclipse_preference('TYPE_CHECK_DEFINITIONS',type_check_definitions).
349		advanced_eclipse_preference('TRACE_INFO',provide_trace_information).
350		advanced_eclipse_preference('PROFILING_INFO',prob_profiling_on).
351		advanced_eclipse_preference('SOURCE_PROFILING_INFO',prob_source_profiling_on).
352		advanced_eclipse_preference('STORE_DETAILED_TRANSITION_INFOS',eventtrace).
353		advanced_eclipse_preference('PERFORMANCE_INFO',performance_monitoring_on).
354		advanced_eclipse_preference('PERFORMANCE_INFO_LIMIT',performance_monitoring_expansion_limit).
355		advanced_eclipse_preference('DOUBLE_EVALUATION',double_evaluation_when_analysing).
356		advanced_eclipse_preference('PROB_SAFE_MODE',prob_safe_mode).
357		%advanced_eclipse_preference('RECURSIVE',allow_recursive_closures).
358		advanced_eclipse_preference('IGNORE_HASH_COLLISIONS',ignore_hash_collisions).
359		advanced_eclipse_preference('USE_SCOPE_DEFINITION',use_scope_predicate).
360		advanced_eclipse_preference('FORGET_STATE_SPACE',forget_state_space).
361		advanced_eclipse_preference('SAFETY_MODEL_CHECK',store_only_one_incoming_transition). % is actually INVARIANT_MC
362		advanced_eclipse_preference('LTL_SAFETY_MODEL_CHECK',use_safety_ltl_model_checker).
363		%advanced_eclipse_preference('LARGE_PARSER_JVM',use_large_jvm_for_parser).
364		advanced_eclipse_preference('JVM_PARSER_HEAP_MB',jvm_parser_heap_size_mb). % TO DO: do not show in ProB2-UI
365		advanced_eclipse_preference('JVM_PARSER_ARGS',jvm_parser_additional_args).
366		advanced_eclipse_preference('JVM_PARSER_POSITION_INFOS',jvm_parser_position_infos).
367		%advanced_eclipse_preference('JVM_PARSER_FASTRW',jvm_parser_fastrw).
368		advanced_eclipse_preference('CSP_STRIP_SOURCE_LOC',cspm_strip_source_location).
369		advanced_eclipse_preference('INVARIANT_CHECKING',do_invariant_checking).
370		advanced_eclipse_preference('ASSERT_CHECKING',do_assert_checking).
371		%advanced_eclipse_preference('NEGATED_INVARIANT_CHECKING',do_neginvariant_checking). % use double_evaluation_when_analysing
372		advanced_eclipse_preference('ALLOW_SIMULTANEOUS_ASSIGNMENTS',allow_simultaneous_assignments).
373		advanced_eclipse_preference('ALLOW_REALS',allow_arith_operators_on_reals).
374		advanced_eclipse_preference('REAL_SOLVER',solver_for_reals).
375		advanced_eclipse_preference('BUGLY',bugly_pp_scrambling). % B Ugly
376		advanced_eclipse_preference('ATELIERB_KRT_PATH',path_to_atb_krt).
377		advanced_eclipse_preference('JAVA_PATH',path_to_java).
378		advanced_eclipse_preference('JAVA_PARSER_PATH',path_to_java_parser).
379		advanced_eclipse_preference('TRY_ATELIERB_PROVERS',try_atb_provers).
380		advanced_eclipse_preference('SMTLIB_BOOL_ARRAYS_TO_SETS',smtlib2b_arrays_as_sets).
381		advanced_eclipse_preference('SMTLIB_PREPROCESS',smtlib2b_cleanup_predicate).
382		advanced_eclipse_preference('SYMBOLIC_MC_TRY_OTHER_SOLVERS',symbolic_mc_try_other_solvers).
383		advanced_eclipse_preference('SMT_SUPPORTED_INTERPRETER',smt_supported_interpreter).
384		advanced_eclipse_preference('SAT_SUPPORTED_INTERPRETER',sat_supported_interpreter).
385		advanced_eclipse_preference('PP_FROZEN_INFOS',translate_print_frozen_infos).
386		advanced_eclipse_preference('PP_SEQUENCES',translate_print_all_sequences).
387		advanced_eclipse_preference('PP_CS_STYLE_SEQUENCES',translate_print_cs_style_sequences).
388		advanced_eclipse_preference('STRING_AS_SEQUENCE',allow_sequence_operators_on_strings).
389		advanced_eclipse_preference('COMPILE_WHILE',compile_while_body).
390		%advanced_eclipse_preference('PGE',pge).
391
392
393		advanced_eclipse_preference('DOT_PROP',dot_print_node_properties).
394		advanced_eclipse_preference('DOT_IDS',dot_print_node_ids).
395		advanced_eclipse_preference('DOT_TRANS_IDS',dot_print_transition_ids).
396		advanced_eclipse_preference('DOT_INFO',dot_print_node_info).
397		advanced_eclipse_preference('DOT_LOOPS',dot_print_self_loops).
398		advanced_eclipse_preference('DOT_ARC_COLORS',dot_print_arc_colors).
399		advanced_eclipse_preference('DOT_FUNCTIONS',dot_print_functions).
400		advanced_eclipse_preference('DOT_ROOT',dot_print_root).
401		%advanced_eclipse_preference('DOT_LEAVES',dot_print_leaves).
402		advanced_eclipse_preference('DOT_EDGE_LABELS',dot_print_edge_labels).
403		advanced_eclipse_preference('DOT_ARGUMENTS',dot_print_action_arguments).
404		advanced_eclipse_preference('DOT_COLOR_ARC',dot_normal_arc_colour).
405		advanced_eclipse_preference('DOT_COLOR_NODE',dot_normal_node_colour).
406		advanced_eclipse_preference('DOT_COLOR_NODE_ERROR',dot_invariant_violated_node_colour).
407		advanced_eclipse_preference('DOT_COLOR_NODE_OPEN',dot_open_node_colour).
408		advanced_eclipse_preference('DOT_COLOR_NODE_GOAL',dot_goal_node_colour).
409		advanced_eclipse_preference('DOT_PEN_WIDTH',dot_node_penwidth).
410		advanced_eclipse_preference('DOT_EDGE_PEN_WIDTH',dot_edge_penwidth).
411		advanced_eclipse_preference('DOT_SHOW_OP_READ_WRITES',dot_enabling_show_readwrites).
412		advanced_eclipse_preference('DOT',path_to_dot).
413		advanced_eclipse_preference('DOT_ENGINE',dot_default_engine).
414		advanced_eclipse_preference('DOT_DECOMPOSE_NODES',dot_state_graph_decompose).
415
416		advanced_eclipse_preference('SUCCESSFUL_RULE_COLOUR',successful_rule_colour).
417		advanced_eclipse_preference('FAILED_RULE_COLOUR',failed_rule_colour).
418		advanced_eclipse_preference('DISABLED_RULE_COLOUR',disabled_rule_colour).
419		advanced_eclipse_preference('NOT_CHECKED_RULE_COLOUR',not_checked_rule_colour).
420		advanced_eclipse_preference('RULE_GRAPH_SHAPE',rule_graph_shape).
421		advanced_eclipse_preference('EXECUTED_COMPUTATION_COLOUR',executed_computation_colour).
422		advanced_eclipse_preference('NOT_EXECUTED_COMPUTATION_COLOUR',not_executed_computation_colour).
423		advanced_eclipse_preference('DISABLED_COMPUTATION_COLOUR',disabled_computation_colour).
424		advanced_eclipse_preference('COMPUTATION_GRAPH_SHAPE',computation_graph_shape).
425		advanced_eclipse_preference('SUCCEEDED_DEPENDENCY_COLOUR',succeeded_dependency_colour).
426		advanced_eclipse_preference('FAILED_DEPENDENCY_COLOUR',failed_dependency_colour).
427		advanced_eclipse_preference('NORMAL_DEPENDENCY_COLOUR',normal_dependency_colour).
428
429
430		advanced_eclipse_preference('TK_CUSTOM_STATE_VIEW_PADDING',tk_custom_state_viewer_padding).
431		advanced_eclipse_preference('TK_CUSTOM_STATE_VIEW_STRING_PADDING',tk_custom_state_viewer_str_padding).
432		advanced_eclipse_preference('TK_CUSTOM_STATE_VIEW_FONT_NAME',tk_custom_state_viewer_font_name).
433		advanced_eclipse_preference('TK_CUSTOM_STATE_VIEW_FONT_SIZE',tk_custom_state_viewer_font_size).
434		advanced_eclipse_preference('TK_CUSTOM_STATE_VIEW_VISIBLE',use_tk_custom_state_viewer).
435
436		%advanced_eclipse_preference('BOOL_AS_PREDICATE',bool_expression_as_predicate). % obsolete
437		advanced_eclipse_preference('ALLOW_UNTYPED_IDENTIFIERS',allow_untyped_identifiers).
438		advanced_eclipse_preference('ALLOW_LOCAL_OPERATION_CALLS',allow_local_operation_calls).
439		advanced_eclipse_preference('ALLOW_OPERATION_CALLS_IN_EXPRESSIONS',allow_operation_calls_in_expr).
440		advanced_eclipse_preference('ALLOW_COMPLEX_LETS',allow_let_to_reuse_introduced_ids).
441		advanced_eclipse_preference('REQUIRE_OUTPUT_ASSIGNMENT',require_operations_to_assign_all_outputs).
442		advanced_eclipse_preference('ALLOW_OUTPUT_READING',allow_operations_to_read_outputs).
443		advanced_eclipse_preference('ALLOW_OPERATION_CALLS_FOR_USES',allow_operation_calls_for_uses).
444		advanced_eclipse_preference('ALLOW_INITIALISATION_OVERRIDE',allow_overriding_initialisation).
445		advanced_eclipse_preference('REPL_UNICODE',repl_unicode).
446		advanced_eclipse_preference('REPL_CACHE_PARSING',repl_cache_parsing).
447		advanced_eclipse_preference('CACHE_CONSTANTS',cache_constants).
448		advanced_eclipse_preference('CACHE_OPERATIONS',cache_operations).
449		advanced_eclipse_preference('CACHE_OPERATIONS_RUNTIME_LIMIT',cache_operations_runtime_limit).
450		advanced_eclipse_preference('LATEX_ENCODING',latex_encoding).
451		advanced_eclipse_preference('LATEX_GREEK_IDENTIFIERS',latex_pp_greek_ids).
452		advanced_eclipse_preference('XML_ENCODING',xml_encoding).
453		advanced_eclipse_preference('BBRESULTS',view_probcli_errors_using_bbresults).
454		advanced_eclipse_preference('IGNORE_PRJ_TYPES',ignore_prj_types).
455		advanced_eclipse_preference('FILTER_UNUSED',filter_unused_constants).
456		advanced_eclipse_preference('DISPROVER_MODE',disprover_mode).
457		advanced_eclipse_preference('TRACE_UPON_ERROR',trace_upon_error).
458		advanced_eclipse_preference('NDJSON_ERROR_LOG_FILE',error_log_file).
459		advanced_eclipse_preference('STRICT_RAISE_WARNINGS',strict_raise_warnings).
460		advanced_eclipse_preference('STRICT_RAISE_ENUM_WARNINGS',strict_raise_enum_warnings).
461		advanced_eclipse_preference('STRICT_CLASH_CHECKING',clash_strict_checks).
462		%advanced_eclipse_preference('SHOW_FULL_ERROR_LOCATIONS',show_full_error_span).
463		advanced_eclipse_preference('EDITOR',path_to_text_editor_launch).
464		advanced_eclipse_preference('EDITOR_GUI',path_to_text_editor).
465		advanced_eclipse_preference('TLC_WORKERS',tlc_number_of_workers). % will be useful once we can call TLC from probcli (-mc_with_tlc)
466		advanced_eclipse_preference('TLC_USE_PROB_CONSTANTS',tlc_use_prob_constant_setup).
467		advanced_eclipse_preference('LTSMIN',path_to_ltsmin).
468
469		advanced_eclipse_preference('INTERNAL_ARGUMENT_PREFIX',prefix_internal_operation_arguments).
470		advanced_eclipse_preference('MINIMAL_TEST_SUITES',generate_minimal_nr_of_testcases).
471		advanced_eclipse_preference('ALLOW_NEW_OPERATIONS_IN_REFINEMENT',allow_new_ops_in_refinement).
472
473		advanced_eclipse_preference('ALLOY_USE_IMPLEMENTABLE_INTEGERS',alloy_use_implementable_integers).
474		advanced_eclipse_preference('ALLOY_SCOPELESS_TRANSLATION',alloy_scopeless_translation).
475		advanced_eclipse_preference('ALLOY_TRANSLATION_FOR_PROOF',alloy_translation_for_proof).
476		advanced_eclipse_preference('ALLOY_STRICT_INTEGERS',alloy_strict_integers).
477
478		advanced_eclipse_preference('DOT_EVENT_HIERARCHY_HORIZONTAL',dot_event_hierarchy_horizontal).
479		advanced_eclipse_preference('DOT_EVENT_HIERARCHY_MCH_COL',dot_event_hierarchy_machine_colour).
480		advanced_eclipse_preference('DOT_EVENT_HIERARCHY_REF_COL',dot_event_hierarchy_refines_colour).
481		advanced_eclipse_preference('DOT_EVENT_HIERARCHY_NEW_COL',dot_event_hierarchy_new_event_colour).
482		advanced_eclipse_preference('DOT_EVENT_HIERARCHY_RENAME_COL',dot_event_hierarchy_rename_event_colour).
483		advanced_eclipse_preference('DOT_EVENT_HIERARCHY_RENAME_UNCHG_COL',dot_event_hierarchy_rename_unchanged_event_colour).
484		advanced_eclipse_preference('DOT_EVENT_HIERARCHY_UNCHG_COL',dot_event_hierarchy_unchanged_event_colour).
485		advanced_eclipse_preference('DOT_EVENT_HIERARCHY_GRD_STRGTH_COL',dot_event_hierarchy_grd_strengthening_event_colour).
486		advanced_eclipse_preference('DOT_EVENT_HIERARCHY_GRD_KEEP_COL',dot_event_hierarchy_grd_keeping_event_colour).
487		advanced_eclipse_preference('DOT_EVENT_HIERARCHY_EDGE_COL',dot_event_hierarchy_edge_colour).
488		advanced_eclipse_preference('DOT_EVENT_HIERARCHY_EXTENDS_COL',dot_event_hierarchy_extends_colour).
489		advanced_eclipse_preference('DOT_HIERARCHY_EXTRA_DETAIL',dot_hierarchy_show_extra_detail).
490		advanced_eclipse_preference('DOT_USE_CONSTANTS',dot_print_use_constants).
491		advanced_eclipse_preference('DOT_ROOT_SHAPE',dot_root_shape).
492		advanced_eclipse_preference('DOT_NORMAL_NODE_SHAPE',dot_normal_node_shape).
493		advanced_eclipse_preference('DOT_CURRENT_NODE_SHAPE',dot_current_node_shape).
494		advanced_eclipse_preference('DOT_SCOPE_LIMIT_COL',dot_scope_limit_node_colour).
495		advanced_eclipse_preference('DOT_FILL_NORMAL_NODES',dot_fill_normal_nodes).
496		advanced_eclipse_preference('DOT_NODE_FONT_SIZE',dot_node_font_size).
497		advanced_eclipse_preference('DOT_EDGE_FONT_SIZE',dot_edge_font_size).
498		advanced_eclipse_preference('DOT_LIMIT_PAGE_SIZE',dot_with_page_size).
499		advanced_eclipse_preference('DOT_HORIZONTAL_LAYOUT',dot_horizontal_layout).
500		advanced_eclipse_preference('DOT_COLOUR_GOAL',dot_colour_goal_nodes).
501		advanced_eclipse_preference('DOT_DEFINITIONS_USE_SUB_GRAPH',dot_definitions_use_sub_graph).
502		advanced_eclipse_preference('DOT_DEFINITIONS_SHOW_ALL',dot_definitions_show_all).
503		advanced_eclipse_preference('DOT_PROJECTION_NON_DET_COL',dot_projection_non_det_edge_colour).
504		advanced_eclipse_preference('DOT_PROJECTION_DET_COL',dot_projection_det_edge_colour).
505		advanced_eclipse_preference('DOT_PROJECTION_NON_DEF_COL',dot_projection_non_definite_edge_style).
506		advanced_eclipse_preference('DOT_PROJECTION_DEF_COL',dot_projection_definite_edge_style).
507		advanced_eclipse_preference('DOT_PROJECTION_LABEL_LIMIT',dot_projection_label_limit).
508		advanced_eclipse_preference('DOT_PROJECTION_ONLY_EXPLORED_NODES',dot_projection_process_only_explored).
509		advanced_eclipse_preference('DOT_USE_UNICODE',dot_use_unicode).
510		advanced_eclipse_preference('DOT_PREDICATE_NODE_SHAPE',dot_predicate_node_shape).
511		advanced_eclipse_preference('DOT_EXPRESSION_NODE_SHAPE',dot_expression_node_shape).
512		advanced_eclipse_preference('DOT_VARIABLE_MODIFICATION_HIDE_ONLY_WRITTEN',dot_var_mod_hide_only_written).
513		advanced_eclipse_preference('DOT_MACHINE_HIERARCHY_MAX_IDS',dot_hierarchy_max_ids).
514		advanced_eclipse_preference('CBC_PROVIDE_EXPLANATIONS',cbc_provide_explanations).
515		advanced_eclipse_preference('CBC_ENABLE_ANALYSIS_TIME_OUT',timeout_cbc_analysis).
516		advanced_eclipse_preference('SYNTAX_HIGHLIGHT',do_syntax_highlighting).
517		advanced_eclipse_preference('WD_IGNORE_EXTERNAL',wd_ignore_external_funs).
518		advanced_eclipse_preference('WD_IGNORE_FINITE_POS',wd_skip_finite_pos).
519		advanced_eclipse_preference('WD_ANALYSIS_FOR_ANIMATION',wd_analysis_for_animation).
520		advanced_eclipse_preference('Z3_SOLVE_FOR_ANIMATION',z3_solve_for_animation).
521		advanced_eclipse_preference('ADD_WD_POS_FOR_Z3',add_wd_pos_for_z3).
522		%advanced_eclipse_preference('DO_NOT_PRINT_WD_ERRORS',do_not_print_wd_errors).
523		advanced_eclipse_preference('TABLE_COLUMN_LIMIT',translation_limit_for_table_commands).
524		advanced_eclipse_preference('MAX_TRACES',trace_generation_limit).
525		advanced_eclipse_preference('TRACES_TIME_OUT',trace_generation_time_out).
526
527		advanced_eclipse_preference('MC_DC_Level',mc_dc_default_level).
528		advanced_eclipse_preference('VISB_DEBUG_INFO',visb_show_debug_infos).
529
530		% obsolete
531		obsolete_eclipse_preference('EXPAND_CLOSURES_FOR_STATE').
532		obsolete_eclipse_preference('BOOL_AS_PREDICATE').
533		obsolete_eclipse_preference('BPARSER').
534		obsolete_eclipse_preference('DOT_LEAVES').
535		obsolete_eclipse_preference('PROB2_TRACE_FILE').
536		obsolete_eclipse_preference('PROB2_TRACE_FILE_UNIQUE').
537		obsolete_eclipse_preference('SFDP').
538		obsolete_eclipse_preference('SHOW_FULL_ERROR_LOCATIONS').
539		obsolete_eclipse_preference('WARN_WHEN_EXPANDING_INFINITE_CLOSURES').
540
541
542		deprecated_eclipse_preference('KODKOD',bool,use_solver_on_load,[true/kodkod,false/prob]). % try_kodkod_on_load
543
544
545
546		print_eclipse_prefs :- findall(X,eclipse_preference(X,_),Xs), sort(Xs,SXs),
547		length(SXs,Len),
548		format('VALUE and DESCRIPTION of ~w ProB PREFERENCES~n FORMAT:~n',[Len]),
549		format(' ~w = ~w~w : ~w ==> ~w~n',['PREFERENCE','CurrentValue','(*)','Type','Description']),
550		format(' * indicates current value does not correspond to default.~n',[]),
551		member(X,SXs),
552		eclipse_preference(X,P),
553		preference_val_type(P,VT),
554		preference_description(P,Desc),
555		preference(P,Val),
556		preference_default_value(P,Def),
557		(Def=Val -> Info = '' ; Info = ' *'),
558		format(' ~w = ~w~w : ~w ==> ~w~n',[X,Val,Info,VT,Desc]),
559		fail.
560		print_eclipse_prefs :-
561		format('DESCRIPTION of ProB PREFERENCE GROUPS:~n',[]),
562		preference_group_description(Group,Desc),
563		findall(Setting,preference_group_val(Group,Setting,_,_),S),
564		sort(S,Sorted),
565		format(' * PREFERENCE GROUP ~w : SETTINGS ~w : ~w~n',[Group,Sorted,Desc]),
566		fail.
567		print_eclipse_prefs.
568
569
570		:- dynamic preference/2.
571
572		% add clause in case init_preferences forgotten
573		preference(A,B) :- format(user_error,'Preferences not initalised (~w,~w)',[A,B]),
574		init_preferences,!, preference(A,B).
575		%add_internal_error('Preferences not initialised: ',preference(A,B)),fail.
576
577
578		% ------------------
579
580		preference_default_value(maxint,3). % 2147483647
581		preference_default_value(minint,-1). %-2147483648
582		preference_default_value(number_animated_abstractions, 20).
583		preference_default_value(number_skipped_refined_machines, 0).
584		preference_default_value(globalsets_fdrange,2).
585		preference_default_value(do_invariant_checking,true).
586		preference_default_value(do_assert_checking,true).
587		%preference_default_value(do_full_invariant_checking,true).
588		%preference_default_value(use_new_kernel,false).
589		preference_default_value(find_abort_values,false).
590		preference_default_value(raise_abort_immediately,false).
591		preference_default_value(treat_outermost_pre_as_select,true).
592		preference_default_value(require_operations_to_assign_all_outputs,false).
593		preference_default_value(allow_operations_to_read_outputs,false).
594		preference_default_value(allow_operation_calls_for_uses,false).
595		preference_default_value(allow_overriding_initialisation,false).
596		preference_default_value(allow_simultaneous_assignments,false).
597		preference_default_value(allow_arith_operators_on_reals,default).
598		preference_default_value(solver_for_reals,precise_float_solver).
599		preference_default_value(cspm_animate_all_processes_without_arguments,false).
600		preference_default_value(cspm_animate_all_processes,false).
601		%preference_default_value(cspm_display_inout,false).
602		preference_default_value(cspm_detailed_animation,false).
603		preference_default_value(cspm_strip_source_location,false).
604		%preference_default_value(csp_event_visible_to_user,false).
605		%preference_default_value(cspm_allow_incomplete_records,false).
606		%preference_default_value(findOnlyOneSol,false).
607		preference_default_value(maxNrOfInitialisations,4).
608		preference_default_value(randomisedRestartInitalisations,false).
609		preference_default_value(maxNrOfEnablingsPerOperation,10).
610		preference_default_value(time_out,2500).
611		preference_default_value(debug_time_out_factor,5).
612		%preference_default_value(use_large_jvm_for_parser,false).
613		preference_default_value(jvm_parser_heap_size_mb,0).
614		preference_default_value(jvm_parser_additional_args,'').
615		preference_default_value(jvm_parser_position_infos,true).
616		preference_default_value(jvm_parser_fastrw,false).
617		preference_default_value(jvm_parser_force_parsing,false).
618		preference_default_value(show_initialisation_arguments,true).
619		preference_default_value(deterministic_trace_replay,false).
620		%preference_default_value(animate_skip_operations,true).
621		preference_default_value(show_eventb_any_arguments,false).
622		preference_default_value(convert_comprehension_sets_into_closures,false). /* <------------ was true */
623		preference_default_value(comprehension_set_symbolic_limit,20000).
624		preference_default_value(use_clpfd_solver,true). % Default was changed from false to true on November 28 2013; commit d26b1bf1edeb29d630cf798c0773bfa1ba71219b
625		preference_default_value(clpfd_solver_label_option,ffc).
626		preference_default_value(use_chr_solver,false).
627		preference_default_value(data_validation_mode,false).
628		preference_default_value(use_smt_mode,false).
629		preference_default_value(solver_strength,0).
630		preference_default_value(remove_implied_constraints,false).
631		preference_default_value(lift_existential_quantifiers,false).
632		preference_default_value(use_common_subexpression_elimination,false). % CSE
633		preference_default_value(use_common_subexpression_also_for_predicates,true). % CSE_PRED
634		preference_default_value(use_common_subexpression_also_for_substitutions,false). % CSE_SUBST
635		preference_default_value(use_common_subexpression_wd_only,false). % CSE_WD_ONLY
636		preference_default_value(normalize_ast,false). % NORMALIZE_AST
637		preference_default_value(normalize_ast_sort_commutative,false).
638		preference_default_value(optimize_ast,true). % OPTIMIZE_AST
639		%preference_default_value(optimize_enum_set_elems,false).
640		preference_default_value(useless_code_elimination,false). % see test 1660
641		preference_default_value(compile_while_body,true). % COMPILE_WHILE
642		preference_default_value(detect_lambdas,true). % DETECT_LAMBDAS
643		preference_default_value(auto_detect_theory_ops,false). % DETECT_LAMBDAS
644		preference_default_value(ltsmin_guard_splitting,false).
645		preference_default_value(ltsmin_do_not_evaluate_top_level_guards,false).
646		preference_default_value(fail_if_clpfd_timeout,false).
647		%preference_default_value(allow_recursive_closures,false).
648		preference_default_value(use_static_ordering,false).
649		preference_default_value(try_use_state_packing,auto).
650		preference_default_value(use_state_packing,false). % computed
651		preference_default_value(force_state_packing_for_closures,false).
652		preference_default_value(provide_trace_information,false).
653		:- if(environ(prob_profile,true)).
654		preference_default_value(prob_profiling_on,true).
655		:- else.
656		preference_default_value(prob_profiling_on,false).
657		:- endif.
658		:- if(environ(prob_src_profile,true)).
659		preference_default_value(prob_source_profiling_on,true).
660		:- else.
661		preference_default_value(prob_source_profiling_on,false).
662		:- endif.
663		preference_default_value(performance_monitoring_on,false).
664		preference_default_value(performance_monitoring_expansion_limit,100).
665		preference_default_value(partition_predicates,true).
666		preference_default_value(partition_predicates_inline_equalities,true).
667		preference_default_value(use_closure_expansion_memoization,false).
668		preference_default_value(use_function_memoization,default).
669		preference_default_value(allow_incomplete_partial_setup_constants,false).
670		preference_default_value(re_execute_operations_with_side_effects,false).
671		preference_default_value(warn_if_definition_hides_variable,true).
672		preference_default_value(type_check_definitions,false). % can consume time, see test 778; and produces error messages for some tests
673		%preference_default_value(warn_when_expanding_infinite_closures,5).
674		preference_default_value(allow_enumeration_of_infinite_types,true).
675		preference_default_value(strict_raise_warnings,false). % Default false as add_closure_warning otherwise will e.g. then be raised as errors; this can confuse predicate_evaluator into returning a not-well-defined result or everybody else relying ErrOcc arg of exit_error_scope
676		preference_default_value(strict_raise_enum_warnings,false).
677		preference_default_value(clash_strict_checks,false).
678		preference_default_value(perform_stricter_static_checks,false).
679		preference_default_value(ignore_prj_types,false).
680		%preference_default_value(never_convert_closures_into_explicit_form,false).
681		%preference_default_value(convert_types_into_closures,true).
682		%preference_default_value(convert_closures_into_explicit_form_for_store,true). % <--- maybe remove preference
683		%preference_default_value(allow_empty_global_sets,false).
684		%preference_default_value(test_case_gen_stop_at_first_error,false).
685		preference_default_value(prefix_internal_operation_arguments,'$none'). %all operations arguments are external and shown in testcases
686		preference_default_value(generate_minimal_nr_of_testcases,true).
687		preference_default_value(use_tk_custom_state_viewer,true).
688		preference_default_value(tk_custom_state_viewer_font_name,'').
689		preference_default_value(tk_custom_state_viewer_font_size,0).
690		preference_default_value(tk_custom_state_viewer_padding,0).
691		preference_default_value(tk_custom_state_viewer_str_padding,10).
692		preference_default_value(use_small_window,false).
693		preference_default_value(tk_show_source_pane,true).
694		preference_default_value(ignore_hash_collisions,false).
695		preference_default_value(forget_state_space,false).
696		preference_default_value(store_only_one_incoming_transition,false).
697		preference_default_value(mc_continue_after_error,false).
698		%preference_default_value(enable_permutation_reducation,false).
699		%preference_default_value(use_symmetry_marker_hash,false).
700		%preference_default_value(enable_canonical_symmetry,false).
701		%preference_default_value(use_nauty_symmetry_reduction,false).
702		preference_default_value(symmetry_mode,off).
703		preference_default_value(use_static_symmetry_detection,true).
704		%preference_default_value(bool_expression_as_predicate,false).
705		preference_default_value(allow_untyped_identifiers,false).
706		preference_default_value(repl_unicode,false).
707		preference_default_value(repl_cache_parsing,false).
708		preference_default_value(cache_constants,true).
709		preference_default_value(cache_operations,true).
710		preference_default_value(cache_operations_runtime_limit,0).
711		preference_default_value(latex_encoding,auto).
712		preference_default_value(latex_pp_greek_ids,false).
713		preference_default_value(xml_encoding,auto).
714		preference_default_value(view_probcli_errors_using_bbresults,false).
715		preference_default_value(eventtrace,false).
716		preference_default_value(store_event_transinfo,false).
717		preference_default_value(use_solver_on_load,prob).
718		%preference_default_value(try_kodkod_on_load,false).
719		preference_default_value(kodkod_for_components,true).
720		preference_default_value(kodkod_raise_warnings,false).
721		preference_default_value(kodkod_max_nr_solutions,22).
722		preference_default_value(kodkod_symmetry_level,0).
723		preference_default_value(kodkod_sat_solver,sat4j).
724		preference_default_value(smt_supported_interpreter,false).
725		preference_default_value(sat_supported_interpreter,false).
726		preference_default_value(use_record_construction,true). % was false
727		preference_default_value(seen_machines_included,false).
728		preference_default_value(allow_sequence_operators_on_strings,true).
729
730		preference_default_value(dot_print_edge_labels,true).
731		preference_default_value(dot_print_action_arguments,true).
732		preference_default_value(dot_print_functions,false).
733		preference_default_value(dot_print_self_loops,true).
734		preference_default_value(dot_print_arc_colors,true).
735		preference_default_value(dot_print_root,true).
736		%preference_default_value(dot_print_leaves,true).
737		preference_default_value(dot_print_node_ids,false).
738		preference_default_value(dot_print_transition_ids,false).
739		preference_default_value(dot_print_use_constants,true).
740		preference_default_value(dot_print_node_info,true).
741		preference_default_value(dot_use_ps_viewer,PS) :- host_platform(X),
742		(X = darwin -> PS = true % on recent macOS platforms all GraphViz Dotty viewers seem broken
743		; X=windows -> PS = true % GraphViz no longer seems to distribute the Dotty viewer
744		; PS=false).
745		preference_default_value(path_to_dot,Path) :- try_get_program_path('dot',Path).
746		preference_default_value(dot_default_engine,dot).
747		preference_default_value(path_to_dotty,VIEWER) :- (possible_program(dot_viewer,E) -> VIEWER=E ; VIEWER ='dotty').
748		%preference_default_value(path_to_dotty,'/Applications/OmniGraffle/OmniGraffle.app/Contents/MacOS/OmniGraffle').
749		preference_default_value(path_to_ltsmin,'./lib/'). % Path to where we can find prob2lts min commands like prob2lts-sym; default means we look in lib
750		preference_default_value(path_to_ps_viewer,VIEWER) :-
751		(possible_program(pdf_viewer,E) -> VIEWER=E ; VIEWER ='gv').
752		preference_default_value(path_to_latex,Path) :- try_get_program_path('pdflatex',Path).
753		%preference_default_value(path_to_ps_viewer,'open -a /Applications/Preview.app') :- host_platform(darwin).
754		%preference_default_value(path_to_ps_viewer,'C:/Program Files/Ghostgum/gsview/gsview32') :- host_platform(windows).
755		%preference_default_value(path_to_ps_viewer,'gv') :- host_platform(linux) ; host_platform(unknown).
756		%preference_default_value(path_to_ps_viewer,'open -a /Applications/MacGhostViewX_Folder/MacGhostViewX.app').
757		preference_default_value(dot_root_shape,invtriangle).
758		preference_default_value(dot_node_penwidth,2).
759		preference_default_value(dot_edge_penwidth,1).
760		preference_default_value(dot_normal_node_shape,box). % egg,ellipse
761		preference_default_value(dot_current_node_shape,doubleoctagon).
762		preference_default_value(dot_open_node_colour,'#F4E3C1'). %'#E88C59' '#C96D37'
763		preference_default_value(dot_scope_limit_node_colour,gray).
764		preference_default_value(dot_normal_node_colour,'#99BF38').
765		preference_default_value(dot_invariant_violated_node_colour,'#FF3800'). %'#FF4409'
766		preference_default_value(dot_fill_normal_nodes,false).
767		preference_default_value(dot_normal_arc_colour,'#006391').
768		preference_default_value(dot_node_font_size,12).
769		preference_default_value(dot_edge_font_size,12).
770		preference_default_value(dot_with_page_size,true).
771		preference_default_value(dot_horizontal_layout,false).
772		preference_default_value(dot_colour_goal_nodes,true).
773		preference_default_value(dot_goal_node_colour,orange).
774		preference_default_value(dot_print_node_properties,false).
775		preference_default_value(dot_counterexample_node_colour,brown).
776		preference_default_value(dot_counterexample_op_colour,brown).
777		preference_default_value(dot_hierarchy_max_ids,0).
778		preference_default_value(cbc_provide_explanations,false).
779
780		preference_default_value(successful_rule_colour,'#4caf504d').
781		preference_default_value(failed_rule_colour,'#cc2f274d').
782		preference_default_value(disabled_rule_colour,lightgray).
783		preference_default_value(not_checked_rule_colour,white).
784		preference_default_value(rule_graph_shape,ellipse).
785		preference_default_value(executed_computation_colour,'#4caf504d').
786		preference_default_value(not_executed_computation_colour,white).
787		preference_default_value(disabled_computation_colour,lightgray).
788		preference_default_value(computation_graph_shape,rectangle).
789		preference_default_value(succeeded_dependency_colour,'#4caf50').
790		preference_default_value(failed_dependency_colour,'#cc2f27').
791		preference_default_value(normal_dependency_colour,black).
792
793		preference_default_value(dot_event_hierarchy_horizontal,true).
794		preference_default_value(dot_event_hierarchy_machine_colour,gray95).
795		preference_default_value(dot_event_hierarchy_refines_colour,'#C0A060'). % Dark Khaki; see http://www.gpeters.com/color/color-schemes.php?search_term=Art+Nouveau
796		preference_default_value(dot_event_hierarchy_new_event_colour,'#C06040'). % Coral '#C08040'). % Peru
797		preference_default_value(dot_event_hierarchy_rename_event_colour,'#E0E0A0'). % Pale Goldenrod
798		preference_default_value(dot_event_hierarchy_rename_unchanged_event_colour,'#E0F0E0'). % Honeydew
799		preference_default_value(dot_event_hierarchy_unchanged_event_colour,gray92).
800		preference_default_value(dot_event_hierarchy_grd_strengthening_event_colour,gray83).
801		preference_default_value(dot_event_hierarchy_grd_keeping_event_colour,'#E0C080'). % Burlywood
802		preference_default_value(dot_event_hierarchy_edge_colour,'#806040'). % Sienna
803		preference_default_value(dot_event_hierarchy_extends_colour,gray50).
804		preference_default_value(dot_hierarchy_show_extra_detail,false).
805
806		preference_default_value(dot_projection_non_det_edge_colour,'#806040'). % Sienna; alternative :#A06040 Light Salmon
807		preference_default_value(dot_projection_det_edge_colour,black).
808		preference_default_value(dot_projection_non_definite_edge_style,dashed).
809		preference_default_value(dot_projection_definite_edge_style,solid).
810		preference_default_value(dot_projection_label_limit,75).
811		preference_default_value(dot_projection_process_only_explored,false).
812		preference_default_value(dot_use_unicode,true).
813		preference_default_value(dot_predicate_node_shape,rect).
814		preference_default_value(dot_expression_node_shape,record).
815		preference_default_value(dot_var_mod_hide_only_written,false).
816
817
818		preference_default_value(mc_dc_default_level,2).
819
820		preference_default_value(dot_enabling_show_readwrites,true).
821
822		preference_default_value(dot_definitions_use_sub_graph,true).
823		preference_default_value(dot_definitions_show_all,false).
824		preference_default_value(dot_state_graph_decompose,true).
825
826		preference_default_value(font_size,'Monaco 12') :- host_platform(darwin).
827		% Monaco looks better than Courier on Mac, Consolas
828		% Note: ctext seems to use a non-monospaced font for TkFixedFont
829		preference_default_value(font_size,'TkFixedFont 12') :- host_platform(X), X\==darwin. % alternative: Courier, Monaco, Consolas
830		preference_default_value(font_name,'Monaco') :- host_platform(darwin).
831		preference_default_value(font_name,'TkFixedFont') :- host_platform(X), X\==darwin. % alternative: Courier, Monaco
832		preference_default_value(font_size_only,12).
833		preference_default_value(use_font_size_for_columns,false).
834		preference_default_value(allow_source_code_editing,true).
835		preference_default_value(show_line_numbers,false).
836		%preference_default_value(show_full_error_span,true).
837		preference_default_value(highlight_brackets,true).
838		preference_default_value(highlight_current_line,true).
839		preference_default_value(ask_when_content_changed,false).
840		preference_default_value(user_not_beginner,false).
841		preference_default_value(user_is_an_expert_with_accessto_source_distribution,false).
842		%preference_default_value(default_to_runtime_type_checking_on_startup_for_expert,false).
843		preference_default_value(path_to_probe,'C:/probe/probe-1.30-windows/probe.exe') :- host_platform(windows).
844		preference_default_value(path_to_probe,'more') :- host_platform(X), X\==windows.
845		preference_default_value(path_to_spin,'xspin').
846		preference_default_value(path_to_cspm,'/usr/bin/cspm').
847		preference_default_value(path_to_text_editor,EDITOR) :-
848		(possible_program(editor,E) -> EDITOR=E ; EDITOR ='').
849		preference_default_value(path_to_text_editor_launch,EDITOR) :-
850		(possible_program(editor_launch,E) -> EDITOR=E ; EDITOR ='vi').
851		%preference_default_value(path_to_fuzz,'fuzz').
852		preference_default_value(path_to_fdr,'fdr2').
853		preference_default_value(path_to_csp_typechecker,FDR3) :-
854		(possible_program(fdr3,E) -> FDR3=E ; FDR3 ='refines').
855		preference_default_value(path_to_bcomp,'bcomp').
856		preference_default_value(path_to_atb_krt,Default) :- try_get_program_path('krt',Default).
857		preference_default_value(path_to_java,Default) :- try_get_program_path('java',Default).
858		preference_default_value(path_to_java_parser,''). % use default probcliparser.jar in lib folder
859		preference_default_value(try_atb_provers,false).
860		preference_default_value(smtlib2b_arrays_as_sets,false).
861		preference_default_value(smtlib2b_cleanup_predicate,false).
862		preference_default_value(symbolic_mc_try_other_solvers,false).
863		preference_default_value(ltl_to_ba_tool,'lib/ltl2ba').
864		preference_default_value(path_to_clingo,Default) :- try_get_program_path(clingo,Default).
865
866		preference_default_value(number_of_recent_documents,25).
867		preference_default_value(number_of_searched_patterns,9).
868		preference_default_value(number_of_replaced_patterns,9).
869		preference_default_value(number_of_eval_history_elements,50).
870		preference_default_value(number_of_eval_csp_history_elements,50).
871		preference_default_value(number_of_checked_ltl_formulas,20).
872
873		preference_default_value(do_syntax_highlighting,true).
874		preference_default_value(sh_type_colour,darkred).
875		preference_default_value(sh_logical_colour,tomato).
876		preference_default_value(sh_assignments_colour,darkslateblue).
877		preference_default_value(sh_operators,'#5883be').
878		preference_default_value(sh_top_level_keywords,blue).
879		preference_default_value(sh_control_keywords,darkviolet).
880		%preference_default_value(sh_includes_keywords,darkslateblue).
881		preference_default_value(sh_comments,'#784e50').
882		preference_default_value(sh_pragmas,'#5b5b5b').
883		preference_default_value(sh_unsupported_background,yellow).
884
885		preference_default_value(expand_forall_upto,100).
886		preference_default_value(double_evaluation_when_analysing,true).
887		:- if(environ(prob_safe_mode,true)).
888		preference_default_value(prob_safe_mode,true).
889		:- else.
890		preference_default_value(prob_safe_mode,false).
891		:- endif.
892		preference_default_value(expand_avl_upto,100).
893		preference_default_value(show_bvisual_formula_explanations,false).
894		preference_default_value(show_bvisual_formula_functor_from,Val) :-
895		(get_prob_application_type(tcltk) -> Val=0 ; Val = -1). % disable for ProB2
896		preference_default_value(show_bvisual_proof_info_icons,Val) :-
897		(get_prob_application_type(tcltk) -> Val=true ; Val = false). % disable for ProB2
898		preference_default_value(formula_tree_minimal_timeout,1000).
899		preference_default_value(formula_tree_maximal_timeout,30000).
900		preference_default_value(show_function_tuples_in_property,true).
901		preference_default_value(bugly_pp_scrambling,false).
902		preference_default_value(pp_propositional_logic_mode,false).
903		preference_default_value(pp_wd_infos,false).
904		preference_default_value(pp_with_terminal_colour,false).
905		preference_default_value(wd_ignore_external_funs,false).
906		preference_default_value(wd_skip_finite_pos,false).
907		preference_default_value(wd_analysis_for_animation,true).
908		preference_default_value(z3_solve_for_animation,true).
909		preference_default_value(add_wd_pos_for_z3,true).
910		preference_default_value(do_not_print_wd_errors,false).
911
912		preference_default_value(allow_new_ops_in_refinement,false).
913		preference_default_value(allow_local_operation_calls,false).
914		preference_default_value(allow_operation_calls_in_expr,false).
915		preference_default_value(allow_let_to_reuse_introduced_ids,false).
916		preference_default_value(use_po,true).
917		preference_default_value(try_operation_reuse,auto).
918		preference_default_value(try_operation_reuse_for_invariants,true).
919		preference_default_value(operation_reuse_setting,false).
920		preference_default_value(randomise_operation_order,false).
921		preference_default_value(randomise_enumeration_order,false).
922		preference_default_value(perform_enumeration_order_analysis,true).
923		preference_default_value(set_rand,false).
924		preference_default_value(rand_seed,2342452).
925
926		preference_default_value(use_cbc_analysis,true).
927		preference_default_value(timeout_cbc_analysis,300).
928
929		preference_default_value(use_scope_predicate,true).
930		preference_default_value(use_ignore_pragmas,false).
931
932		preference_default_value(alloy_use_implementable_integers,false).
933		preference_default_value(alloy_scopeless_translation,false).
934		preference_default_value(alloy_translation_for_proof,false).
935		preference_default_value(alloy_strict_integers,true).
936
937		%preference_default_value(pge,off).
938		preference_default_value(por,off).
939		preference_default_value(por_heur,random).
940		preference_default_value(use_safety_ltl_model_checker,true).
941
942		preference_default_value(enable_graph,false).
943		preference_default_value(enable_graph_depth,1).
944
945		preference_default_value(dependency_enable_predicates,false).
946
947		preference_default_value(filter_unused_constants,false).
948		preference_default_value(translate_force_all_typing_infos,false).
949		preference_default_value(translate_print_typing_infos,false).
950		preference_default_value(translate_print_frozen_infos,false).
951		preference_default_value(translate_ids_to_parseable_format,false).
952		preference_default_value(translate_suppress_rodin_positions_flag,false).
953		preference_default_value(translate_print_all_sequences,false).
954		preference_default_value(translate_print_cs_style_sequences,false).
955		preference_default_value(translation_limit_for_table_commands,100).
956		preference_default_value(visb_allow_variables_for_objects,Res) :-
957		(prob_application_type(tcltk) -> Res=true ; Res=false).
958		preference_default_value(visb_show_debug_infos,false).
959
960		preference_default_value(trace_generation_limit,100).
961		preference_default_value(trace_generation_time_out,2147483646). % disabled
962
963		/* Disprover mode - deactivates some optimizations only valid for animation */
964		preference_default_value(disprover_mode,false).
965		preference_default_value(allow_improving_wd_mode,false).
966		preference_default_value(trace_upon_error,false).
967		preference_default_value(error_log_file,'').
968		preference_default_value(tlc_number_of_workers,2).
969		preference_default_value(tlc_use_prob_constant_setup,false).
970		preference_default_value(unsat_core_algorithm,linear_greedy).
971
972		preference_default_value(port, 6000). % on macOS Monterey 5000 and 7000 are now used by control center
973		preference_default_value(ip, localhost).
974		preference_default_value(max_states, 0).
975		preference_default_value(tmpdir, '/tmp/').
976		preference_default_value(logdir, './distb-logs/').
977		preference_default_value(proxynumber, 0).
978		preference_default_value(queue_threshold, 20). /* TODO: this is not used an implemented in the proxy (pk, 12.01.18) */
979		preference_default_value(hash_cycle, 25).
980		preference_default_value(cdclt_perform_static_analysis, true).
981		preference_default_value(cdclt_perform_symmetry_breaking, false).
982		preference_default_value(cdclt_use_idl_theory_solver, false).
983		preference_default_value(prob_version_info,Version) :- version_str(Version).
984		preference_default_value(prob_revision_info,Rev) :- revision(Rev).
985		preference_default_value(prob_lastchangedate_info,D) :- lastchangeddate(D).
986
987		preference_default_value(xtl_safe_mode,false).
988
989		preference_default_value(machines_path,Dir) :-
990		catch(absolute_file_name(examples('.'),Dir),_,Dir='.').
991
992
993
994		:- use_module(library(file_systems),[file_exists/1,directory_exists/1]).
995		try_get_program_path(Name,Path) :-
996		(possible_program(Name,R) -> Path=R
997		; Path=Name). % hope in PATH
998	?	possible_program(Type,E) :- host_platform(P),possible_program_aux(Type,P,E),
999		%format('Trying program ~w for ~w on platform ~w.~n',[E,Type,P]),
1000		(file_exists(E) -> true ; P=darwin, directory_exists(E)).
1001		%format('Found program ~w for ~w on platform ~w.~n',[E,Type,P]).
1002
1003		:-use_module(library(system),[environ/2]).
1004		possible_program_aux(editor_launch,darwin,'/usr/local/bin/bbedit').
1005		possible_program_aux(editor_launch,darwin,'/usr/local/bin/edit'). % Text Wrangler
1006		possible_program_aux(editor_launch,_,PATH) :- environ('EDITOR',PATH).
1007		possible_program_aux(editor_launch,darwin,'/usr/local/bin/atom').
1008		possible_program_aux(editor_launch,linux,'/usr/local/bin/atom').
1009		possible_program_aux(editor_launch,linux,'/usr/bin/kwrite').
1010		possible_program_aux(editor_launch,linux,'/usr/bin/gedit').
1011		possible_program_aux(editor_launch,linux,'/usr/bin/vim').
1012		possible_program_aux(editor,darwin,'/Applications/BBEdit.app').
1013		possible_program_aux(editor,darwin,'/Applications/TextWrangler.app').
1014		possible_program_aux(editor,darwin,'/Applications/Atom.app').
1015		possible_program_aux(editor,darwin,'/Applications/Sublime Text 2.app').
1016		possible_program_aux(editor,darwin,'/Applications/TextMate.app').
1017		possible_program_aux(editor,darwin,'/Applications/TextEdit.app').
1018		possible_program_aux(editor,_,PATH) :- environ('EDITOR',PATH). % this is the Path in the Terminal; maybe the user wants other programs for the Tcl/Tk GUI; hence this is the last lookup
1019		possible_program_aux(pdf_viewer,darwin,'/Applications/Preview.app') :- prob_application_type(tcltk). % probcli cannot use open -a yet.
1020		possible_program_aux(pdf_viewer,darwin,'/usr/bin/open').
1021		possible_program_aux(pdf_viewer,linux,'/usr/bin/okular'). % KDE
1022		possible_program_aux(pdf_viewer,linux,'/usr/bin/evince'). % GNOME
1023		possible_program_aux(pdf_viewer,windows,'C:/Program Files/Ghostgum/gsview/gsview32').
1024		possible_program_aux(dot_viewer,darwin,'/Applications/MacPorts/Graphviz.app') :- % only version that seems to run on mac
1025		% sudo port install graphviz-gui (see https://ports.macports.org/port/graphviz-gui/)
1026		prob_application_type(tcltk).
1027		possible_program_aux(dot_viewer,darwin,'/Applications/Graphviz.app') :- prob_application_type(tcltk). % probcli cannot use open -a yet
1028		possible_program_aux(dot_viewer,darwin,'/Applications/OmniGraffle.app') :- prob_application_type(tcltk).
1029		possible_program_aux(dot_viewer,darwin,'/Applications/Visual Studio Code.app') :-
1030		% using Graphviz Interactive Preview extension
1031		prob_application_type(tcltk).
1032		possible_program_aux(dot_viewer,darwin,'/usr/bin/open').
1033		possible_program_aux(dot_viewer,windows,'C:/Program Files/Graphviz2.38/bin/dotty.exe').
1034		possible_program_aux(dot_viewer,windows,'C:/Program Files (x86)/Graphviz2.38/bin/dotty.exe').
1035		possible_program_aux(krt,darwin,'/Applications/AtelierB.app/AB/bbin/macosx/krt').
1036		possible_program_aux(krt,darwin,'/Applications/atelierb-free-arm64-24.04.2.app/Contents/Resources/bin/krt').
1037		%possible_program_aux(krt,darwin,'/Applications/atelierb-full-4.6.0-rc4.app/Contents/Resources/bbin/macosx/krt'). % set DYLD_VERSIONED_LIBRARY_PATH ?
1038		possible_program_aux(java,windows,'C:/Program Files/Java/jre7/bin/java.exe').
1039		possible_program_aux(java,P,'/usr/bin/java') :- unix(P).
1040		possible_program_aux(fdr3,darwin,'/Applications/FDR3.app/Contents/MacOS/refines').
1041		possible_program_aux(fdr3,darwin,'/Applications/FDR4.app/Contents/MacOS/refines').
1042		%possible_program_aux(sfdp,P,'/usr/local/bin/sfdp') :- unix(P).
1043		possible_program_aux(dot,P,'/usr/local/bin/dot') :- unix(P).
1044		possible_program_aux(dot,darwin,'/opt/homebrew/bin/dot'). % location of new homebrew on M1/Arm Macs
1045		% full location is e.g. /opt/homebrew/Cellar/graphviz/8.0.1/bin/dot
1046		possible_program_aux(dot,P,'/opt/local/bin/dot') :- unix(P). % e.g., location of MacPorts
1047		possible_program_aux(dot,P,'/usr/bin/dot') :- P=linux.
1048		possible_program_aux(pdflatex,P,'/usr/local/texlive/2016/bin/x86_64-darwin/pdflatex') :- P=darwin.
1049		possible_program_aux(pdflatex,P,'/usr/local/texlive/2019/bin/x86_64-darwin/pdflatex') :- P=darwin.
1050		possible_program_aux(pdflatex,P,'/usr/local/bin/pdflatex') :- unix(P).
1051		possible_program_aux(pdflatex,P,'/opt/local/bin/pdflatex') :- unix(P).
1052		possible_program_aux(open,darwin,'/usr/bin/open').
1053		possible_program_aux(open,linux,'xdg-open').
1054		possible_program_aux(open,windows,'start').
1055		possible_program_aux(clingo,darwin,'/opt/homebrew/bin/clingo').
1056
1057
1058		unix(darwin).
1059		unix(linux).
1060
1061		/* ------------------------- */
1062
1063		% now in basic_tests.pl
1064		%:- assert_must_succeed( \+((preference_description(P,_D),\+preference_default_value(P,_Val)))).
1065		%:- assert_must_succeed( \+((preference_default_value(P,_D), \+preference_description(P,_Val)))).
1066		preference_description(maxNrOfInitialisations,'Max Number of Initialisations and Constant-Setups Computed').
1067		preference_description(randomisedRestartInitalisations,'Use Randomised Restart for Initialisation and Constant Setup (only makes sense if RANDOMISE_ENUMERATION_ORDER is set; for an operation OP use MAX_OPERATIONS_OP == -Nr)').
1068		preference_description(maxNrOfEnablingsPerOperation,'Max Number of Enablings per Operation Computed').
1069		preference_description(time_out,'Time out for computing enabled transitions (in ms, is multiplied by a factor for other computations, value 2147483646 turns time outs off)').
1070		preference_description(globalsets_fdrange,'Size of unspecified deferred sets in SETS section').
1071		preference_description(maxint,Desc) :-
1072		(get_prob_application_type(rodin)
1073		-> Desc='maximum value for unbounded integer enumerations'
1074		; Desc='value of MAXINT, controls enumeration of integers and used to define NAT in classical B (2147483647 for 32 bit ints)').
1075		preference_description(minint,Desc) :-
1076		(get_prob_application_type(rodin)
1077		-> Desc='minimum value for unbounded integer enumerations'
1078		; Desc='value of MININT, controls enumeration of integers and used to define INT in classical B (-2147483648 for 32 bit ints)'). % Atelier-B uses 2147483647
1079		preference_description(number_animated_abstractions,'How many levels of refined Event-B models are animated by default').
1080		preference_description(number_skipped_refined_machines,'How many levels of concrete Event-B refinements are skipped for animation').
1081		%preference_description(findOnlyOneSol,'Find only one solution per Operation or Initialisation').
1082		preference_description(debug_time_out_factor,'Debug Properties: Multiplying Factor for Timeout').
1083		%preference_description(use_large_jvm_for_parser,'Use large Heap and Stack size for Java Parser').
1084		preference_description(jvm_parser_heap_size_mb,'Heap size in MB for Java parser (-Xmx JVM option, 0 means default value)').
1085		preference_description(jvm_parser_additional_args,'Additional arguments sent to the JVM for the Java parser (e.g., "-XX:+UseG1GC -Xss5m")').
1086		preference_description(jvm_parser_position_infos,'Produce detailed position information in the Java parser (turn off to reduce memory consumption for very large B machines; change requires restarting ProB)').
1087		preference_description(jvm_parser_fastrw,'Use binary (fastrw) format for .prob files for faster loading').
1088		preference_description(jvm_parser_force_parsing,'Always parse B machines even if .prob file is up-to-date').
1089		preference_description(do_invariant_checking,'Check invariant while animating and model checking').
1090		preference_description(do_assert_checking,'Check ASSERT statements while animating and model checking').
1091		%preference_description(do_neginvariant_checking,'Check negation of invariant').
1092		%preference_description(do_full_invariant_checking,'Check types when checking invariant').
1093		%preference_description(use_new_kernel,'Use new Kernel (only some basic operations supported, only fore PRE and INITs)').
1094		preference_description(find_abort_values,'Try more aggressively to detect not well-defined expressions (e.g. applying function outside of domain), may slow down animator; possible values false,true,full').
1095		preference_description(raise_abort_immediately,'Raise potential well-definedness issues immediately (may lead to false spurious alarms, but can allow to better detect WD issues which lead to timeouts; possible values false,true,full)').
1096		preference_description(cspm_animate_all_processes,'Animate all CSP-M processes (also processes with arguments)').
1097		preference_description(cspm_animate_all_processes_without_arguments,'Animate all CSP-M processes without arguments (not just MAIN)').
1098		%preference_description(cspm_display_inout,'Display unsynchronised inputs/outputs as ?/!').
1099		preference_description(cspm_detailed_animation,'Provide more fine-grained source-location animation for CSP (can slow model checking down)').
1100		preference_description(cspm_strip_source_location,'Strip CSP source-location information (for RHS of processes, except for internal choice)').
1101		%preference_description(csp_event_visible_to_user,'Return the CSP event as visible event to the user (option only relevant for models in \'CSP || B\' mode).').
1102		%preference_description(cspm_allow_incomplete_records,'Allow construction of incomplete records (e.g., for Casper files)').
1103		preference_description(use_clpfd_solver,'Use CLP(FD) solver for B integers (restricts range to -2^28..2^28-1 on 32 bit machines)').
1104		preference_description(clpfd_solver_label_option,'CLP(FD) labeling option used: ffc (default), occurence, ff, leftmost, min, max, max_regret, dom_w_deg, anti_first_fail (see SICStus manual)').
1105		preference_description(use_chr_solver,'Use CHR based solver. Should speed up detection of unsolvable predicates, but might slow down solving in general.').
1106		preference_description(data_validation_mode,'Assume everything can be computed without constraint solving.').
1107		preference_description(convert_comprehension_sets_into_closures,'Lazy expansion of lambdas and set comprehensions (i.e., keep them symbolic by default even if smaller than SYMBOLIC_LIMIT)').
1108		preference_description(comprehension_set_symbolic_limit,'Limit for expanding comprehension sets (comprehension sets known to be larger than limit will be kept symbolic)').
1109		preference_description(use_smt_mode,'Enable SMT-Mode (more aggressive enumeration of case distinctions inside predicates compared to enumeration of data values)'). % will be set automatically in CBC mode; should normally not be set by user
1110		preference_description(solver_strength,'Strength of certain Solver propagations (0 is default)').
1111		preference_description(remove_implied_constraints,'Remove unnecessary constraints implied by other constraints').
1112		preference_description(lift_existential_quantifiers,'Lift existential quantifiers, i.e., treat existentially quantified variables like ordinary variables').
1113		preference_description(use_common_subexpression_elimination,'Enable CSE (Common Subexpression Elimination)').
1114		preference_description(use_common_subexpression_also_for_predicates,'Apply CSE (if enabled) also to predicates').
1115		preference_description(use_common_subexpression_also_for_substitutions,'Apply CSE (if enabled) also to substitutions (operation/event bodies) [EXPERIMENTAL]').
1116		preference_description(use_common_subexpression_wd_only,'Apply CSE (if enabled) only to well-defined sub-formulas').
1117		preference_description(normalize_ast,'Normalize AST before passing to ProB kernel (rewrites many B predicates into simpler form)').
1118		preference_description(normalize_ast_sort_commutative,'Sort commutative operators (useful with NORMALIZE_AST to try detect equivalent formulas)').
1119		preference_description(optimize_ast,'Optimize AST (Abstract Syntax Tree) before passing to ProB kernel (rewrites many B predicates into more efficient form)').
1120		%preference_description(optimize_enum_set_elems,'Optimize type checking and compilation of sets containing enumerated set elements; assumes enumerated set ids are not used as quantifier ids'). % in future this preference will disappear and ProB will do safe detection automatically
1121		preference_description(useless_code_elimination,'Useless Code Elimination: try and find useless statements which have no influence on the result of an operation.').
1122		preference_description(compile_while_body,'Compile bodies of WHILE loops if variant large').
1123		preference_description(detect_lambdas,'Detect set comprehensions which can be rewritten into lambdas.').
1124		preference_description(auto_detect_theory_ops,'Try and detect mappings of Rodin axiomatic theory operators based on name.').
1125		preference_description(ltsmin_guard_splitting,'Detect GUARDS of operations which do not depend on parameters (for LTSMin); these guards will not be evaluated by the interpreter when ltsmin_do_not_evaluate_top_level_guards is true').
1126		preference_description(ltsmin_do_not_evaluate_top_level_guards,'Do not evaluate top-level GUARDS detected when true (for guards detected by ltsmin_guard_splitting) or full (for all top-level guards for PGE)').
1127		preference_description(fail_if_clpfd_timeout,'Assume failure if posting a CLP(FD) constraint times-out').
1128		%preference_description(allow_recursive_closures,'Lazy expansion of *Recursive* set Comprehensions and lambdas').
1129		preference_description(use_static_ordering,'Use static ordering to enumerate constants which occur in most PROPERTIES first'). % sort properties
1130		preference_description(try_use_state_packing,'Use more aggressive COMPRESSION when storing states (false: off, true: compromise between speed and memory, full: preserve more memory, auto: use heuristic)').
1131		preference_description(use_state_packing,'Computed actual value of COMPRESSION preference').
1132		preference_description(force_state_packing_for_closures,'Use more aggressive COMPRESSION when storing states with symbolic closures'). % only has influence if use_state_packing is not already full
1133		preference_description(provide_trace_information,'Provide various tracing information on the terminal/console.').
1134		preference_description(prob_profiling_on,'Keep track of ProB profiling information (e.g., for time spent in operations or memoized function calls)').
1135		preference_description(prob_source_profiling_on,'Keep track of ProB source profiling information (e.g., which parts of the B source code is covered)').
1136		preference_description(performance_monitoring_on,'Provide performance monitoring information on the terminal/console.').
1137		preference_description(performance_monitoring_expansion_limit,'Limit in ms for printing warnings when expanding comprehension sets in performance monitoring mode.').
1138		preference_description(partition_predicates,'Partition predicates (PROPERTIES) into components').
1139		preference_description(partition_predicates_inline_equalities,'Inline equalities when partitioning into components').
1140		preference_description(use_closure_expansion_memoization,'MEMOize expansions of set comprehensions and lambda abstractions.').
1141		preference_description(use_function_memoization,'MEMOIZE function applications of all functions defined in ABSTRACT_CONSTANTS (default means only memoize functions annotated /*@desc memo */).').
1142		preference_description(allow_incomplete_partial_setup_constants,'Allow ProB to proceed even if only part of the CONSTANTS have been found.').
1143		preference_description(re_execute_operations_with_side_effects,'Re-execute operations with side-effects in the animator (only works for the forward button at the moment).').
1144		preference_description(warn_if_definition_hides_variable,'Warn if a DEFINITION hides a variable with the same name').
1145		preference_description(type_check_definitions,'Type check all visible DEFINITIONs (not just used ones)').
1146		%preference_description(warn_when_expanding_infinite_closures,'Warn when expanding infinite closures if MAXINT larger than: ').
1147		preference_description(allow_enumeration_of_infinite_types,'Allow enumeration of infinite types').
1148		preference_description(strict_raise_warnings,'Treat warnings as errors (Warning: can generate spurious NOT-WELL-DEFINED messages).').
1149		preference_description(strict_raise_enum_warnings,'Treat ENUMERATION warnings (aka VIRTUAL TIME-OUTS) as errors (Warning: can generate spurious NOT-WELL-DEFINED messages).').
1150		preference_description(clash_strict_checks,'Do a stricter checking for name CLASHES in B machines').
1151		preference_description(perform_stricter_static_checks,'Perform stricter additional static checks on formulas (automatically set by ProB).').
1152		preference_description(ignore_prj_types,'Ignore types of prj1 and prj2 (i.e., prj1({1},{1})(2,3) is considered well-defined').
1153
1154		%preference_description(never_convert_closures_into_explicit_form,'Never convert closures back into explicit form (only use for debugging !)').
1155		%preference_description(convert_types_into_closures,'Lazy expansion of type expressions (POW,-->,...)').
1156		%preference_description(convert_closures_into_explicit_form_for_store,'Convert lazy form back into explicit form for Variables, Constants, Operation Arguments').
1157		%preference_description(allow_empty_global_sets,'Allow empty global SETs').
1158		%preference_description(test_case_gen_stop_at_first_error,'Stop at first error in test case generation').
1159		preference_description(prefix_internal_operation_arguments,'Prefix of internal operation arguments (these are not included in test cases)').
1160		preference_description(generate_minimal_nr_of_testcases,'Generate minimal suite of mcm testcases (and not one per event)').
1161		preference_description(use_tk_custom_state_viewer,'Use custom Tk viewer to represent state of B Machine').
1162		preference_description(tk_custom_state_viewer_font_name,'Font for animation strings (if empty, the editor font will be used)').
1163		preference_description(tk_custom_state_viewer_font_size,'Font size for animation strings (if 0, the editor font size will be used)').
1164		preference_description(tk_custom_state_viewer_padding,'Padding (in pixels) between images of custom TK state viewer').
1165		preference_description(tk_custom_state_viewer_str_padding,'Padding (in pixels) between strings of custom TK state viewer').
1166		preference_description(use_small_window,'Use a small main window for ProB (useful on small screens)').
1167		preference_description(tk_show_source_pane,'Show the B Source Code').
1168		preference_description(ignore_hash_collisions,'Ignore hash collisions in state space (if true not all states may be computed!)').
1169		preference_description(forget_state_space,'Do not remember state space (mainly useful in conjunction with IGNORE_HASH_COLLISIONS)').
1170		preference_description(store_only_one_incoming_transition,'Only store one incoming transition/operation per reached state. Can be used when model checking of safety properties (invariants, goal, assertions). Do not use for LTL model checking, deadlock checking or animation.'). % TO DO: check config
1171		preference_description(mc_continue_after_error,'Continue model checking even after an error or goal has been found').
1172		%preference_description(enable_permutation_reducation,'Enable Permutation Flooding').
1173		%preference_description(use_symmetry_marker_hash,'Use Symmetry Hash Marker').
1174		%preference_description(enable_canonical_symmetry,'Enable Symmetry Reduction by Canonical Form Computation').
1175		%preference_description(use_nauty_symmetry_reduction,'Use Nauty ((c) McKay) C Library for Symmetry Reduction with Canonical Form Computation').
1176		preference_description(symmetry_mode,'Symmetry Mode: off,flood,canon,nauty,hash').
1177		preference_description(use_static_symmetry_detection,'Detect symmetries in forall/exists and in PROPERTIES for deferred sets').
1178		%preference_description(bool_expression_as_predicate,'Extended Predicate Syntax (allow p&q as syntactic sugar for (p=TRUE) & (q=TRUE), only possible in REPL and DEPRECATED)' ).
1179		preference_description(allow_untyped_identifiers,'Allow UNTYPED identifiers (they will be assigned new deferred sets as type)' ).
1180		preference_description(repl_unicode,'Use UNICODE in REPL and editing window').
1181		preference_description(repl_cache_parsing,'Cache parsing in REPL (useful if same formula gets parsed multiple times, e.g., for Latex processing)').
1182		preference_description(cache_constants,'Cache constant values when -cache is activated'). % value_persistance
1183		preference_description(cache_operations,'Cache operations/events when -cache is activated'). % ditto
1184		preference_description(cache_operations_runtime_limit,'Minimal runtime for operations to be stored in -cache').
1185		preference_description(latex_encoding,'Encoding used for Latex processing with -latex (auto,ISO-8859-1,ISO-8859-2,UTF-8,UTF-16,...)').
1186		preference_description(latex_pp_greek_ids,'Prety-print Greek identifiers (Sigma,...) in Latex mode').
1187		preference_description(xml_encoding,'Encoding used for XML processing, e.g., with -logxml (auto,ISO-8859-1,ISO-8859-2,UTF-8,UTF-16,...)').
1188		preference_description(view_probcli_errors_using_bbresults,'Show probcli errors using the BBEdit (11.6 or newer) bbresults command').
1189
1190		preference_description(eventtrace,'Store detailed trace for each execution of a Rodin event or classical B operation (may cause large memory requirement)'). % detailed info with guards, simulation errors, ... or path(.) for classical B
1191		preference_description(store_event_transinfo,'Store information about parameters and abstract events for each execution of a Rodin event (may cause larger memory requirement)'). % just event(Name,Parameters) trace
1192		preference_description(use_solver_on_load,'Use this solver for PROPERTIES when loading machines').
1193		%preference_description(try_kodkod_on_load,'Apply translation to KODKOD on PROPERTIES when loading machines').
1194		preference_description(kodkod_for_components,'Translate only complete components to KODKOD (false allows partial translations)'). % and full throws enumeration warning if translation fails
1195		preference_description(kodkod_raise_warnings,'Raise WARNING when component or predicate cannot be translated to KODKOD').
1196		preference_description(kodkod_max_nr_solutions,'Maximum number of solutions computed and sent by KODKOD per batch.').
1197		preference_description(kodkod_symmetry_level,'Symmetry level for Kodkod (0=off, 20=on), the higher this value, the more symmetries will be broken, you should probably only turn this on when MAX_INITIALISATIONS is set to 1').
1198		% from Kodkod API: If a non-symmetric solver is chosen for this.solver, this value controls the maximum length of the generated lex-leader symmetry breaking predicate. In general, the higher this value, the more symmetries will be broken. But setting the value too high may have the opposite effect and slow down the solving. The default value for this property is 20.
1199		preference_description(kodkod_sat_solver,'SAT solver used for Kodkod (sat4j, minisat, lingeling, glucose)').
1200		preference_description(smt_supported_interpreter,'Use Z3 / CVC4 for predicates inside the B interpreter').
1201		preference_description(sat_supported_interpreter,'Use Kodkod for specific predicates inside the B interpreter').
1202		preference_description(use_record_construction,'Records: Check if axioms/properties describe a record pattern').
1203		preference_description(seen_machines_included,'Seen/used machines are included (no operations available) instead of extended').
1204		preference_description(allow_sequence_operators_on_strings,'Allow sequence operators (^) to be applied to STRINGs').
1205		preference_description(show_eventb_any_arguments,'Show top-level ANY variable values of B Operations without parameters as parameters').
1206		preference_description(show_initialisation_arguments,'Show effect of initialisation and setup constants in operation name'). % in case of non-deterministic assignments for INIT: only those are shown
1207		%preference_description(animate_skip_operations,'Animate operations which are skip or PRE C THEN skip').
1208		preference_description(deterministic_trace_replay,'Replay Traces without backtracking (to reduce memory consumption)').
1209		preference_description(treat_outermost_pre_as_select,'Treat outermost PRE as SELECT').
1210		preference_description(require_operations_to_assign_all_outputs,'Require operations to assign to all outputs').
1211		preference_description(allow_operations_to_read_outputs,'Allow B operations to read output parameters; output values will be initialised to default value in animator.').
1212		preference_description(allow_operation_calls_for_uses,'Allow to call B read-only operations of used machines (via USES clauses); permitted by BToolkit but not Atelier-B').
1213		preference_description(allow_overriding_initialisation,'Allow to override INITIALISATION of included/extended machines'). % useful when using EXTENDS to create animation instances
1214		preference_description(allow_simultaneous_assignments,'Allow B operations to assign multiple times to same variable (ASM style)').
1215		preference_description(allow_arith_operators_on_reals,'Allow to use the REAL datatype').
1216		preference_description(solver_for_reals,'Solver to be used for REAL/FLOAT datatype (none, float_solver: simple det. propagation, precise_float_solver, aggressive_float_solver)').
1217		%preference_description(check_prolog_b_ast,'Check the abstract syntax tree for B machines').
1218		preference_description(dot_print_edge_labels,'Show edge labels (operation names) in state space').
1219		preference_description(dot_print_action_arguments,'Show operation arguments (when edge labels shown)').
1220		preference_description(dot_print_functions,'Show functions (operations that return values w/o changing state) in state space').
1221		preference_description(dot_print_self_loops,'Show self-loops in state space and other dot graphs').
1222		%preference_description(dot_print_leaves,'Print Leaves').
1223		preference_description(dot_print_arc_colors,'Colour the arcs (disable for import in OmniGraffle)').
1224		preference_description(dot_print_root,'Show root node in state space').
1225		preference_description(dot_print_node_ids,'Show internal state ids in state space').
1226		preference_description(dot_print_transition_ids,'Show transition ids in state space').
1227		preference_description(dot_print_node_info,'Show additional state information (values of variables)').
1228		preference_description(dot_print_use_constants,'Use constants for deferred set values if possible').
1229		preference_description(dot_use_ps_viewer,'Use PDF/Postscript Viewer for .dot files').
1230		preference_description(path_to_dot,'Path/Command for dot program (using "/" even on Windows. Try avoiding spaces in path)').
1231		preference_description(dot_default_engine,'Default layout engine used for dot (dot,neato,sfdp,fdp,twopi,circo)').
1232		preference_description(path_to_dotty,'Path/Command for viewer of .dot files (e.g., dotty)').
1233		%preference_description(path_to_sfdp,'Path/Command for sfdp program for dot files (using "/" even on Windows. Try avoiding spaces in path)').
1234		preference_description(path_to_ltsmin,'Path to LTSmin commands, such as prob2lts-sym for symbolic model checking (not available for Windows.)').
1235		preference_description(path_to_ps_viewer,'Path/Command for PDF/Postscript viewer').
1236		preference_description(path_to_latex,'Path/Command for Latex (pdflatex)').
1237		preference_description(dot_root_shape,'Shape for root node (invtriangle,triangle, ellipse, box, diamond,...)').
1238		preference_description(dot_normal_node_shape,'Shape for normal node').
1239		preference_description(dot_current_node_shape,'Shape for current node').
1240		preference_description(dot_open_node_colour,'Colour for open node (red,green,blue,gray,... or rgb hex #ff00ff) or adjacent to an open node if print leaves is off').
1241		preference_description(dot_scope_limit_node_colour,'Colour for open, but uninteresting nodes (red,green,blue,gray,... or rgb hex #ff00ff)').
1242		preference_description(dot_normal_node_colour,'Colour for normal node').
1243		preference_description(dot_node_penwidth,'Pen width for nodes').
1244		preference_description(dot_edge_penwidth,'Pen width for edges').
1245		preference_description(dot_invariant_violated_node_colour,'Colour for invariant violation').
1246		preference_description(dot_fill_normal_nodes,'Fill normal nodes with color').
1247		preference_description(dot_normal_arc_colour,'Colour for normal arcs').
1248		preference_description(dot_node_font_size,'Font Size for Node labels').
1249		preference_description(dot_edge_font_size,'Font Size for Edge labels').
1250		preference_description(dot_with_page_size,'Limit page size by default (does not affect all dot graphs)').
1251		preference_description(dot_horizontal_layout,'Use horizontal layout by default (does not affect all dot graphs)').
1252		preference_description(dot_colour_goal_nodes,'Colour the nodes that satisfy the GOAL predicate').
1253		preference_description(dot_goal_node_colour,'Colour for nodes satisfying the GOAL predicate').
1254		preference_description(dot_print_node_properties,'Show properties of statespace node (useful for CSP models)').
1255		preference_description(dot_counterexample_node_colour,'Colour for counterexample nodes').
1256		preference_description(dot_counterexample_op_colour,'Colour for counterexample transitions').
1257		preference_description(dot_hierarchy_max_ids,'Max. number of identifiers shown in hierarchy view (-1 to show all)').
1258		preference_description(cbc_provide_explanations,'Provide explanations (unsat core,...) for some CBC commands').
1259
1260		preference_description(successful_rule_colour,'Colour of successful rules nodes').
1261		preference_description(failed_rule_colour,'Colour of failed rule nodes').
1262		preference_description(disabled_rule_colour,'Colour of disabled rule nodes').
1263		preference_description(not_checked_rule_colour,'Colour of not checked rule nodes').
1264		preference_description(rule_graph_shape,'Shape of rule nodes').
1265		preference_description(executed_computation_colour,'Colour of executed computation nodes').
1266		preference_description(not_executed_computation_colour,'Colour of not executed computation nodes').
1267		preference_description(disabled_computation_colour,'Colour of disabled computation nodes').
1268		preference_description(computation_graph_shape,'Shape of computation nodes').
1269		preference_description(succeeded_dependency_colour,'Colour of edges to succeeded dependencies').
1270		preference_description(failed_dependency_colour,'Colour of edges to failed dependencies').
1271		preference_description(normal_dependency_colour,'Colour of edges to executed dependencies').
1272
1273		preference_description(dot_event_hierarchy_horizontal,'Organize refinements horizontally').
1274		preference_description(dot_event_hierarchy_machine_colour,'Colour for machine event cluster').
1275		preference_description(dot_event_hierarchy_refines_colour,'Colour for events refining themselves (i.e., not renamed and modifying guard or action)').
1276		preference_description(dot_event_hierarchy_new_event_colour,'Colour for new events (not refining any event) or variables').
1277		preference_description(dot_event_hierarchy_rename_event_colour,'Colour for renamed events (with change in guard or action)').
1278		preference_description(dot_event_hierarchy_rename_unchanged_event_colour,'Colour for renamed unchanged events').
1279		preference_description(dot_event_hierarchy_unchanged_event_colour,'Colour for unchanged events (not renamed, no guards or actions added) or variables').
1280		preference_description(dot_event_hierarchy_grd_strengthening_event_colour,'Colour for events just adding a guard (not renamed, no actions added)').
1281		preference_description(dot_event_hierarchy_grd_keeping_event_colour,'Colour for events just changing an action (not renamed, keeping guard unchanged)').
1282		preference_description(dot_event_hierarchy_edge_colour,'Edge colour for refine relation').
1283		preference_description(dot_event_hierarchy_extends_colour,'Edge colour for extends relation').
1284		preference_description(dot_hierarchy_show_extra_detail,'Provide more details in hierarchy diagram (e.g., constants)').
1285
1286		preference_description(dot_projection_non_det_edge_colour,'Edge colour for deterministic edges').
1287		preference_description(dot_projection_det_edge_colour,'Edge colour for non-deterministic edges').
1288		preference_description(dot_projection_non_definite_edge_style,'Style for non-definite edges (solid,dashed,dotted,bold,invis)').
1289		preference_description(dot_projection_definite_edge_style,'Style for definite edges (solid,dashed,dotted,bold,invis)').
1290		preference_description(dot_projection_label_limit,'Max. nr of characters for node labels').
1291		preference_description(dot_projection_process_only_explored,'Project only on the explored nodes').
1292		preference_description(dot_use_unicode,'Use Unicode symbols for values and formulas').
1293		preference_description(dot_predicate_node_shape,'Shape for predicate nodes in formula trees').
1294		preference_description(dot_expression_node_shape,'Shape for expression nodes in formula trees').
1295		preference_description(dot_var_mod_hide_only_written,'Hide variables which are only written and not read in any guard').
1296
1297
1298		preference_description(mc_dc_default_level,'Default Predicate Expansion Level for MC/DC Coverage Analyses (0=no expansion, 1=only top level connective expanded,...)').
1299
1300		preference_description(dot_enabling_show_readwrites,'Show read/write info for enabling diagrams').
1301
1302		preference_description(dot_definitions_use_sub_graph,'Show expression-, predicate-, substitution-DEFINITIONS as sub-graphs').
1303		preference_description(dot_definitions_show_all,'Show all DEFINITIONS').
1304		preference_description(dot_state_graph_decompose,'Decompose sets and complex pairs into individual vertices').
1305
1306		preference_description(font_size,'Font size in main window').
1307		preference_description(font_name,'Font name in text editor').
1308		preference_description(font_size_only,'Font size in text editor').
1309		preference_description(use_font_size_for_columns,'Use font size also for columns (you need to reselect font size + Courier will be used)').
1310		preference_description(allow_source_code_editing,'Allow editing and saving of main B machine file').
1311		preference_description(show_line_numbers,'Show line numbers in main window').
1312		%preference_description(show_full_error_span,'Show also the end line and column in error messages').
1313		preference_description(highlight_brackets,'Highlights brackets').
1314		preference_description(highlight_current_line,'Highlights current line').
1315		preference_description(ask_when_content_changed,'Asking when file content changed from external program').
1316		preference_description(user_not_beginner,'User is not a beginner').
1317		preference_description(user_is_an_expert_with_accessto_source_distribution,'User is expert with access to source distribution of ProB').
1318		%preference_description(default_to_runtime_type_checking_on_startup_for_expert,'When starting up (in expert mode) turn runtime type checking on').
1319		preference_description(path_to_probe,'Path to Probe or other tool to view .csp files').
1320		preference_description(path_to_spin,'Path to Spin or other tool to view .prom files').
1321		preference_description(path_to_cspm,'Path to cspm to view and analyze .csp files.').
1322		preference_description(path_to_text_editor,'Path to external GUI text editor').
1323		preference_description(path_to_text_editor_launch,'Path to external text editor for probcli (uses EDITOR environment variable by default)'). % different to path_to_text_editor, as from SICStus we cannot launch .app ??!
1324		%preference_description(path_to_fuzz,'Path to the fuzz tool for ProZ').
1325		preference_description(path_to_fdr,'Path to the FDR2 tool').
1326		preference_description(path_to_csp_typechecker,'Path to a CSP type checking tool, such as refines from FDR3 (taking --typecheck as argument)').
1327		preference_description(path_to_bcomp,'Path to a bcomp (Atelier B Parser and type checker )').
1328		preference_description(path_to_java,'Path to the "java" command (in case java is not found on the PATH)').
1329		preference_description(path_to_java_parser,'Provide alternate path to the "probcliparser.jar" JAR file or "cliparser" Graal VM binary (by default ProB will use parser in lib folder)').
1330		preference_description(path_to_atb_krt,'Path to Atelier B Provers krt tool').
1331		preference_description(try_atb_provers,'Try Atelier B Provers for unknown SMTLIB specifications').
1332		preference_description(smtlib2b_arrays_as_sets,'Translate SMTLib boolean Arrays to B Sets (when processing .smt2 files)').
1333		preference_description(smtlib2b_cleanup_predicate,'Preprocess before solving SMTLib formulas (when processing .smt2 files)').
1334		preference_description(symbolic_mc_try_other_solvers,'Symbolic Model Checking: Try different solver / settings combinations').
1335		preference_description(number_of_recent_documents,'Number of recently opened file names memorised').
1336		preference_description(number_of_searched_patterns,'Number of recently searched patterns in text').
1337		preference_description(number_of_replaced_patterns,'Number of recently replaced patterns in text').
1338		preference_description(number_of_eval_history_elements,'Number of recently runs of commands in the eval window').
1339		preference_description(number_of_eval_csp_history_elements,'Number of recently runs of commands in the eval window').
1340		preference_description(number_of_checked_ltl_formulas,'Number of recently checked LTL formulas').
1341		preference_description(ltl_to_ba_tool,'Tool in lib/ directory for generating a Buechi automaton from LTL.').
1342		preference_description(path_to_clingo,'Path to clingo binary (for alternate constraint solving backend)').
1343
1344		preference_description(do_syntax_highlighting,'Enable Syntax Colour Highlighting').
1345		preference_description(sh_type_colour,'Colour of typing constructs: NAT,POW,... (red,green,... or rgb hex #ff00ff)').
1346		preference_description(sh_logical_colour,'Colour of logical operators: &,or,...').
1347		preference_description(sh_assignments_colour,'Colour of assignments: :=, <-- and strings').
1348		preference_description(sh_operators,'Colour of normal operators ran,dom,...').
1349		preference_description(sh_top_level_keywords,'Colour of top level keywords: MACHINE, INVARIANT,...').
1350		preference_description(sh_control_keywords,'Colour of control keywords: IF, CASE,...').
1351		%preference_description(sh_includes_keywords,'Colour of inclusion related keywords: USES,...').
1352		preference_description(sh_comments,'Colour of comments /* ... */').
1353		preference_description(sh_pragmas,'Colour of pragmas /*@ ... */').
1354		preference_description(sh_unsupported_background,'Background colour for unsupported features (closure,...)').
1355
1356		preference_description(expand_forall_upto,'When analysing predicates: max. domain size for expansion of forall').
1357		preference_description(double_evaluation_when_analysing,'Evaluate PREDICATES positively and negatively when analysing').
1358		preference_description(prob_safe_mode,'Perform additional safety checks, which can slow down ProB').
1359		preference_description(expand_avl_upto,'Max size for pretty-printing sets (-1 means no limit)').
1360		preference_description(show_bvisual_formula_functor_from,'Show prefix/infix operators in state view for formulas longer than (use -1 to disable feature):').
1361		preference_description(show_bvisual_proof_info_icons,'Show proof info icon in state view (currently only for Event-B):').
1362		preference_description(formula_tree_minimal_timeout,'Minimal time-out for formula tree visualisation to find solutions to quantified identifiers').
1363		preference_description(formula_tree_maximal_timeout,'Maximal time-out for formula tree visualisation to find solutions to quantified identifiers').
1364		preference_description(show_bvisual_formula_explanations,'Show explanation nodes in state view for certain formulas (e.g., <:, ...)').
1365		preference_description(show_function_tuples_in_property,'Show function tuples in state view or dot files (f(1)=2 instead of f={(1,2)})').
1366		preference_description(bugly_pp_scrambling,'Scramble identifiers when pretty-printing (BUGLY)').
1367		preference_description(pp_propositional_logic_mode,'Try and pretty-print formulas using propositional variables (A=TRUE will be printed as A)').
1368		preference_description(pp_wd_infos,'Pretty-print well-definedness information for formulas').
1369		preference_description(pp_with_terminal_colour,'Pretty-print values and formulas with terminal colour escape codes').
1370		preference_description(wd_ignore_external_funs,'Do not create (unprovable) WD PO for external functions with WD condition').
1371		preference_description(wd_skip_finite_pos,'Do not generate finite WD POs').
1372		preference_description(wd_analysis_for_animation,'Perform the WD analysis in the context of ProB animation (e.g., deferred sets considered finite)').
1373		preference_description(z3_solve_for_animation,'Perform SMT solving with Z3 in the context of ProB animation (e.g., deferred sets considered finite)').
1374		preference_description(add_wd_pos_for_z3,'Add well-definedness POs to constraints before translating to SMT-LIB').
1375		preference_description(do_not_print_wd_errors,'Do not print well-definedness (WD) errors on the console.').
1376
1377
1378		preference_description(allow_new_ops_in_refinement,'Allow introduction of new operations in refinements (automatically set to TRUE for SYSTEM machines)').
1379		preference_description(allow_local_operation_calls,'Allow to call (local) operations in same machine').
1380		preference_description(allow_operation_calls_in_expr,'Allow to call query operations in (some) expressions').
1381		preference_description(allow_let_to_reuse_introduced_ids,'Allow LET substitutions to directly use introduced identifiers (e.g., LET x,y BE x=4 & y=x*x IN ...)').
1382
1383
1384		preference_description(use_po,'Use PROOF information to restrict invariant checking to affected clauses.').
1385		%preference_description(use_po,'Restrict invariant checking to affected clauses. Also remove clauses that are proven (EventB)').
1386		preference_description(try_operation_reuse,'Reuse previously computed operation effects in B/Event-B (cache projected state space per operation)'). % we used to have two values: true/full; true: performed local propagation to successor states for statically computed operation pairs, full: caches a projected state space per eligible operation in LTSmin style
1387		preference_description(try_operation_reuse_for_invariants,'Apply OPERATION_REUSE also to invariants (cache projected state space per invariant check)').
1388		preference_description(operation_reuse_setting,'real setting computed from OPERATION_REUSE').
1389		preference_description(randomise_operation_order,'Randomise order of operations when computing successor states.').
1390		% currently only alternates between normal and reverse order
1391		preference_description(randomise_enumeration_order,'Randomise enumeration of variables.').
1392		preference_description(perform_enumeration_order_analysis,'Perform enumeration order analysis within quantifiers, e.g., to detect identifiers that should not be enumerated').
1393		preference_description(set_rand,'Use a fix seed for random number generator. Allows to reproduce results.').
1394		preference_description(rand_seed,'Seed for Random Number Generator').
1395
1396		preference_description(machines_path,'Last open directory').
1397
1398		% Options for enabling/disabling the POR and PGE optimisations for Model Checking of B and Event-B models
1399		preference_description(use_cbc_analysis,'Use the constraint solver for more refined analysis of the action relations (in case of enabling/dependency determination for POR).').
1400		preference_description(timeout_cbc_analysis,'Time out for computing independence and enable relations between operations.').
1401
1402		preference_description(alloy_use_implementable_integers,'Use INT (minint..maxint) for the translation from Alloy to B.').
1403		preference_description(alloy_scopeless_translation,'Do not set any scopes when translating an Alloy model to B (useful for proof assistants).').
1404		preference_description(alloy_translation_for_proof, 'Translate only a single command of an Alloy model to the B machine assertions section to enable generation of proof obligations in AtelierB.').
1405		preference_description(alloy_strict_integers, 'Only accept integers (i.e, singleton sets in Alloy) as arguments to integer operations. Otherwise, a well-definedness error is thrown.').
1406
1407		preference_description(use_scope_predicate,
1408		'Use SCOPE predicate (if defined) to restrict state space exploration for model checking and animation.').
1409		preference_description(use_ignore_pragmas, 'Ignore predicates with prob-ignore labels or /*@desc prob-ignore */ pragmas when checking PROPERTIES/axioms'). % later we may extend this to INVARIANTS and other contexts
1410
1411		preference_description(por,'Type of Partial Order Reduction Technique (ample_sets, ample_sets2).').
1412		preference_description(por_heur,'Type of heuritic for choosing a valid ample set.').
1413		%preference_description(use_por_for_ltl,'Use Partial Order Reduction for LTL.').
1414		preference_description(use_safety_ltl_model_checker,'Recognise safety properties and check these using the safety property model checker (requires ltl2ba for more complex properties)'). % will currently ignore ltllimit set in probcli
1415
1416		preference_description(enable_graph,'Option for using the enable graph module for partial order reduction.').
1417		preference_description(enable_graph_depth,'The depth of evaluating the weakest-preconditions along a path in an enable graph.').
1418
1419		preference_description(dependency_enable_predicates,'Compute in each state whether two events can disable each other.').
1420
1421		preference_description(filter_unused_constants,'Filter out unused constants (can interfere with VisB or other visualisations)').
1422		preference_description(translate_force_all_typing_infos,'Print all typing infos when pretty-printing').
1423		preference_description(translate_print_typing_infos,'Print needed typing infos when pretty-printing').
1424		preference_description(translate_print_frozen_infos,'Print Prolog frozen goal infos for unbound variables').
1425		preference_description(translate_ids_to_parseable_format,'Print Identifiers in a format that can be parsed again').
1426		preference_description(translate_suppress_rodin_positions_flag,'Suppres Rodin position information when pretty-printing').
1427		preference_description(translate_print_all_sequences,'Print B relations as sequences when possible during pretty-printing.').
1428		preference_description(translate_print_cs_style_sequences,'Print B sequences in theoretical CS style without separators.').
1429		% Note: also influenced by expand_avl_upto preference
1430		preference_description(translation_limit_for_table_commands,'Translation/pretty print limit for columns used by some table (CSV) commands').
1431		preference_description(visb_allow_variables_for_objects,'Allow variables to be used within VISB_SVG_OBJECTS and VISB_SVG_HOVERS expressions'). % for ProB2-UI this could cause problems
1432		preference_description(visb_show_debug_infos,'Show VisB debug information in title hovers').
1433
1434		preference_description(trace_generation_limit,'Max. number of traces generated').
1435		preference_description(trace_generation_time_out,'Timeout for trace generation').
1436
1437		preference_description(disprover_mode,'Assume that well-definedness is guaranteed or checked by other means (for Rodin DISPROVER Plugin)').
1438		preference_description(allow_improving_wd_mode,'Allow transformations that improve well-definedness (e.g., transforming x=1/0 & bfalse to bfalse or replacing #x.(x=E) by btrue)'). % first example still respecting the commutative D system for well-definedness, second example not; used in clean_up
1439		preference_description(trace_upon_error,'Trace upon error (requires running from source)').
1440		preference_description(error_log_file, 'File were all errors and warnings are logged (NDJSON format). Can be set to stderr or stdout.').
1441		preference_description(tlc_number_of_workers,'Number of parallel workers for external tool TLC (for -workers option)').
1442		preference_description(tlc_use_prob_constant_setup,'Use constants found by ProB for TLC model checking (for -constantssetup option)').
1443		preference_description(unsat_core_algorithm,'Algorithm to compute the unsat core of predicates. (divide_and_conquer or linear or linear_greedy or linear_greedy_decompose)').
1444
1445
1446		preference_description(port, 'First number to be used by parB/distb/ZMQ. Default: 5000').
1447		preference_description(ip, 'The IP addess or hostname of the current machine that should be used by parB/distb/ZMQ. Default: localhost. Must be overriden in a distributed setting.').
1448		preference_description(max_states, 'The amount of states that shall be checked by parB/distb/ZMQ worker. Zero means explore entire state space. Default: 0').
1449		preference_description(tmpdir, 'The directory where temporary files should be stored. Default: /tmp/.').
1450		preference_description(logdir, 'The directory where log files should be stored. Default: ./distb-logs/').
1451		preference_description(proxynumber, 'The number of the proxy the ZMQ component should connect to. Relevant if multiple proxies run on the same machine. Default: 0').
1452		preference_description(queue_threshold, 'The amount of states that may be kept in a ZMQ queue before it is allowed to share. Default: 20').
1453		preference_description(hash_cycle, 'Minimum amount of milliseconds that has to pass between hash code updates from the ZMQ master. Default: 25').
1454		preference_description(cdclt_perform_static_analysis, 'CDCL(T) Solver: Perform static analysis to infer implied constraints').
1455		preference_description(cdclt_perform_symmetry_breaking, 'CDCL(T) Solver: Perform symmetry breaking using BLISS (if installed)').
1456		preference_description(cdclt_use_idl_theory_solver, 'CDCL(T) Solver: Use additional IDL (Integer-Difference-Logic) solver').
1457		preference_description(prob_version_info,'Version of ProB (read-only preference)'). % mainly so that in ProB for Rodin we can see the version number
1458		preference_description(prob_revision_info,'Git revision of ProB (read-only preference)').
1459		preference_description(prob_lastchangedate_info,'Last change date of ProB source (read-only preference)').
1460
1461		preference_description(xtl_safe_mode,'Use runtime checking to make sure the predicates in XTL models are implemented correctly, the tradeoff is performance.').
1462
1463		/* ------------------------- */
1464
1465		:- use_module(pathes_extensions_db, [preference_value_requires_extension/3]).
1466		:- use_module(pathes_lib, [unavailable_extension/2]).
1467
1468		%preference_update_action(do_full_invariant_checking,_) :- !, b_types_precompile.
1469		%preference_change_requires_reload(enable_canonical_symmetry,true) :- !, .
1470		%preference_update_action(use_nauty_symmetry_reduction,true) :- !, graph_iso_nauty:nauty_init.
1471		%:- use_module(probsrc(bmachine),[bmachine_is_precompiled/0]).
1472		%:- use_module(probsrc(graph_iso_nauty),[nauty_init/0]).
1473		preference_update_action(Pref,Val) :-
1474	?	preference_value_requires_extension(Pref,Val,Extension),
1475		unavailable_extension(Extension,Reason),
1476		ajoin(['Value ', Val,' for preference ',Pref,' may lead to errors because extension not available (',Reason,'): '],Msg),
1477		add_warning(preferences,Msg,Extension),
1478		fail.
1479		preference_update_action(symmetry_mode,nauty) :- !,
1480		(bmachine:bmachine_is_precompiled -> graph_iso_nauty:nauty_init ; true).
1481		preference_update_action(_,_).
1482		% TODO: jvm_parser_position_infos : release_console_parser
1483
1484		/* ------------------------- */
1485
1486		% now in basic_tests.pl
1487		%:- assert_must_succeed( \+((preference_val_type(P,_D),\+preference_default_value(P,_Val)))).
1488		%:- assert_must_succeed( \+((preference_default_value(P,_D), \+preference_val_type(P,_Val)))).
1489		preference_val_type(maxint,nat1).
1490		preference_val_type(minint,neg).
1491		preference_val_type(number_animated_abstractions,nat).
1492		preference_val_type(number_skipped_refined_machines,nat).
1493		preference_val_type(globalsets_fdrange,nat).
1494		preference_val_type(do_invariant_checking,bool).
1495		preference_val_type(do_assert_checking,bool).
1496		preference_val_type(find_abort_values,xbool).
1497		preference_val_type(raise_abort_immediately,xbool).
1498		preference_val_type(treat_outermost_pre_as_select,bool).
1499		preference_val_type(require_operations_to_assign_all_outputs,bool).
1500		preference_val_type(allow_operations_to_read_outputs,bool).
1501		preference_val_type(allow_operation_calls_for_uses,bool).
1502		preference_val_type(allow_overriding_initialisation,bool).
1503		preference_val_type(allow_simultaneous_assignments,bool).
1504		preference_val_type(allow_arith_operators_on_reals,dbool).
1505		preference_val_type(solver_for_reals,[aggressive_float_solver,float_solver,none,precise_float_solver]).
1506		preference_val_type(cspm_animate_all_processes_without_arguments,bool).
1507		preference_val_type(cspm_animate_all_processes,bool).
1508		preference_val_type(cspm_detailed_animation,bool).
1509		preference_val_type(cspm_strip_source_location,bool).
1510		%preference_val_type(csp_event_visible_to_user,bool).
1511		preference_val_type(show_initialisation_arguments,bool).
1512		preference_val_type(deterministic_trace_replay,bool).
1513		preference_val_type(show_eventb_any_arguments,bool).
1514		preference_val_type(maxNrOfInitialisations,nat).
1515		preference_val_type(randomisedRestartInitalisations,bool).
1516		preference_val_type(maxNrOfEnablingsPerOperation,nat).
1517		preference_val_type(time_out,nat1).
1518		preference_val_type(debug_time_out_factor,nat1).
1519		%preference_val_type(use_large_jvm_for_parser,bool).
1520		preference_val_type(jvm_parser_heap_size_mb,nat).
1521		preference_val_type(jvm_parser_additional_args,string).
1522		preference_val_type(jvm_parser_position_infos,bool).
1523		preference_val_type(jvm_parser_fastrw,bool).
1524		preference_val_type(jvm_parser_force_parsing,bool).
1525		preference_val_type(convert_comprehension_sets_into_closures,bool).
1526		preference_val_type(comprehension_set_symbolic_limit,nat).
1527		preference_val_type(use_clpfd_solver,bool).
1528		preference_val_type(clpfd_solver_label_option,labeling_option).
1529		preference_val_type(use_chr_solver,bool).
1530		preference_val_type(data_validation_mode,bool).
1531		preference_val_type(use_smt_mode,bool).
1532		preference_val_type(solver_strength,nat).
1533		preference_val_type(use_common_subexpression_elimination,bool).
1534		preference_val_type(remove_implied_constraints,bool).
1535		preference_val_type(lift_existential_quantifiers,bool).
1536		preference_val_type(use_common_subexpression_also_for_predicates,bool).
1537		preference_val_type(use_common_subexpression_also_for_substitutions,bool).
1538		preference_val_type(use_common_subexpression_wd_only,bool).
1539		preference_val_type(normalize_ast,bool).
1540		preference_val_type(normalize_ast_sort_commutative,bool).
1541		preference_val_type(optimize_ast,bool).
1542		%preference_val_type(optimize_enum_set_elems,bool).
1543		preference_val_type(useless_code_elimination,bool).
1544		preference_val_type(compile_while_body,bool).
1545		preference_val_type(detect_lambdas,bool).
1546		preference_val_type(auto_detect_theory_ops,bool).
1547		preference_val_type(ltsmin_guard_splitting,bool).
1548		preference_val_type(ltsmin_do_not_evaluate_top_level_guards,xbool).
1549		preference_val_type(fail_if_clpfd_timeout,bool).
1550		%preference_val_type(allow_recursive_closures,bool).
1551		preference_val_type(use_static_ordering,bool).
1552		preference_val_type(try_use_state_packing,axbool).
1553		preference_val_type(use_state_packing,xbool).
1554		preference_val_type(force_state_packing_for_closures,bool).
1555		preference_val_type(provide_trace_information,bool).
1556		preference_val_type(prob_profiling_on,bool).
1557		preference_val_type(prob_source_profiling_on,bool).
1558		preference_val_type(performance_monitoring_on,bool).
1559		preference_val_type(performance_monitoring_expansion_limit,int).
1560		preference_val_type(partition_predicates,bool).
1561		preference_val_type(partition_predicates_inline_equalities,bool).
1562		preference_val_type(use_closure_expansion_memoization,bool).
1563		preference_val_type(use_function_memoization,dbool).
1564		preference_val_type(allow_incomplete_partial_setup_constants,bool).
1565		preference_val_type(re_execute_operations_with_side_effects,bool).
1566		preference_val_type(warn_if_definition_hides_variable,bool).
1567		preference_val_type(type_check_definitions,bool).
1568		%preference_val_type(warn_when_expanding_infinite_closures,int).
1569		preference_val_type(allow_enumeration_of_infinite_types,bool).
1570		preference_val_type(strict_raise_warnings,bool).
1571		preference_val_type(strict_raise_enum_warnings,bool).
1572		preference_val_type(clash_strict_checks,bool).
1573		preference_val_type(perform_stricter_static_checks,bool).
1574		preference_val_type(ignore_prj_types,bool).
1575		preference_val_type(prefix_internal_operation_arguments,string).
1576		preference_val_type(generate_minimal_nr_of_testcases,bool).
1577		preference_val_type(use_tk_custom_state_viewer,bool).
1578		preference_val_type(tk_custom_state_viewer_font_name,string).
1579		preference_val_type(tk_custom_state_viewer_font_size,nat).
1580		preference_val_type(tk_custom_state_viewer_padding,nat).
1581		preference_val_type(tk_custom_state_viewer_str_padding,nat).
1582		preference_val_type(use_small_window,bool).
1583		preference_val_type(tk_show_source_pane,bool).
1584		preference_val_type(ignore_hash_collisions,bool).
1585		preference_val_type(forget_state_space,bool).
1586		preference_val_type(store_only_one_incoming_transition,bool).
1587		preference_val_type(mc_continue_after_error,bool).
1588		preference_val_type(symmetry_mode,[off,flood,nauty,hash]).
1589		preference_val_type(use_static_symmetry_detection,bool).
1590		%preference_val_type(bool_expression_as_predicate,bool).
1591		preference_val_type(allow_untyped_identifiers,[true,false,true_with_string_type]).
1592		preference_val_type(repl_unicode,bool).
1593		preference_val_type(repl_cache_parsing,bool).
1594		preference_val_type(cache_constants,bool).
1595		preference_val_type(cache_operations,bool).
1596		preference_val_type(cache_operations_runtime_limit,nat).
1597		preference_val_type(latex_encoding,text_encoding).
1598		preference_val_type(latex_pp_greek_ids,bool).
1599		preference_val_type(xml_encoding,text_encoding).
1600		preference_val_type(view_probcli_errors_using_bbresults,bool).
1601		preference_val_type(eventtrace,bool).
1602		preference_val_type(store_event_transinfo,bool).
1603		preference_val_type(use_solver_on_load,solver_name).
1604		%preference_val_type(try_kodkod_on_load,bool).
1605		preference_val_type(kodkod_for_components,xbool).
1606		preference_val_type(kodkod_raise_warnings,bool).
1607		preference_val_type(kodkod_max_nr_solutions,nat1).
1608		preference_val_type(kodkod_symmetry_level,nat).
1609		preference_val_type(kodkod_sat_solver,[sat4j,minisat,lingeling,glucose]).
1610		preference_val_type(smt_supported_interpreter,bool).
1611		preference_val_type(sat_supported_interpreter,bool).
1612		preference_val_type(use_record_construction,bool).
1613		preference_val_type(seen_machines_included,bool).
1614		preference_val_type(allow_sequence_operators_on_strings,bool).
1615
1616		preference_val_type(dot_print_node_ids,bool).
1617		preference_val_type(dot_print_transition_ids,bool).
1618		preference_val_type(dot_print_use_constants,bool).
1619		preference_val_type(dot_print_node_info,bool).
1620		preference_val_type(dot_print_edge_labels,bool).
1621		preference_val_type(dot_print_action_arguments,bool).
1622		preference_val_type(dot_print_functions,bool).
1623		preference_val_type(dot_print_self_loops,bool).
1624		preference_val_type(dot_print_root,bool).
1625		%preference_val_type(dot_print_leaves,bool).
1626		preference_val_type(dot_print_arc_colors,bool).
1627		preference_val_type(dot_use_ps_viewer,bool).
1628		preference_val_type(path_to_dot,path).
1629		preference_val_type(dot_default_engine,[dot,neato,sfdp,fdp,twopi,circo,patchwork,osage,nop,nop2]).
1630		preference_val_type(path_to_dotty,path).
1631		preference_val_type(path_to_ltsmin,path).
1632		preference_val_type(path_to_ps_viewer,path).
1633		preference_val_type(path_to_latex,path).
1634		preference_val_type(dot_root_shape,dot_shape).
1635		preference_val_type(dot_node_penwidth,nat).
1636		preference_val_type(dot_edge_penwidth,nat).
1637		preference_val_type(dot_normal_node_shape,dot_shape).
1638		preference_val_type(dot_current_node_shape,dot_shape).
1639		preference_val_type(dot_open_node_colour,rgb_color).
1640		preference_val_type(dot_scope_limit_node_colour,rgb_color).
1641		preference_val_type(dot_normal_node_colour,rgb_color).
1642		preference_val_type(dot_invariant_violated_node_colour,rgb_color).
1643		preference_val_type(dot_fill_normal_nodes,bool).
1644		preference_val_type(dot_normal_arc_colour,rgb_color).
1645		preference_val_type(dot_node_font_size,nat1).
1646		preference_val_type(dot_edge_font_size,nat1).
1647		preference_val_type(dot_with_page_size,bool).
1648		preference_val_type(dot_horizontal_layout,bool).
1649		preference_val_type(dot_colour_goal_nodes,bool).
1650		preference_val_type(dot_goal_node_colour,rgb_color).
1651		preference_val_type(dot_print_node_properties,bool).
1652		preference_val_type(dot_counterexample_node_colour,rgb_color).
1653		preference_val_type(dot_counterexample_op_colour,rgb_color).
1654		preference_val_type(dot_hierarchy_max_ids,int).
1655		preference_val_type(cbc_provide_explanations,bool).
1656
1657		preference_val_type(successful_rule_colour,rgb_color).
1658		preference_val_type(failed_rule_colour,rgb_color).
1659		preference_val_type(disabled_rule_colour,rgb_color).
1660		preference_val_type(not_checked_rule_colour,rgb_color).
1661		preference_val_type(rule_graph_shape,dot_shape).
1662		preference_val_type(executed_computation_colour,rgb_color).
1663		preference_val_type(not_executed_computation_colour,rgb_color).
1664		preference_val_type(disabled_computation_colour,rgb_color).
1665		preference_val_type(computation_graph_shape,dot_shape).
1666		preference_val_type(succeeded_dependency_colour,rgb_color).
1667		preference_val_type(failed_dependency_colour,rgb_color).
1668		preference_val_type(normal_dependency_colour,rgb_color).
1669
1670		preference_val_type(dot_event_hierarchy_horizontal,bool).
1671		preference_val_type(dot_event_hierarchy_machine_colour,rgb_color).
1672		preference_val_type(dot_event_hierarchy_refines_colour,rgb_color).
1673		preference_val_type(dot_event_hierarchy_new_event_colour,rgb_color).
1674		preference_val_type(dot_event_hierarchy_rename_event_colour,rgb_color).
1675		preference_val_type(dot_event_hierarchy_rename_unchanged_event_colour,rgb_color).
1676		preference_val_type(dot_event_hierarchy_unchanged_event_colour,rgb_color).
1677		preference_val_type(dot_event_hierarchy_grd_strengthening_event_colour,rgb_color).
1678		preference_val_type(dot_event_hierarchy_grd_keeping_event_colour,rgb_color).
1679		preference_val_type(dot_event_hierarchy_edge_colour,rgb_color).
1680		preference_val_type(dot_event_hierarchy_extends_colour,rgb_color).
1681		preference_val_type(dot_hierarchy_show_extra_detail,bool).
1682
1683		preference_val_type(dot_projection_non_det_edge_colour,rgb_color).
1684		preference_val_type(dot_projection_det_edge_colour,rgb_color).
1685		preference_val_type(dot_projection_non_definite_edge_style,dot_line_style).
1686		preference_val_type(dot_projection_definite_edge_style,dot_line_style).
1687		preference_val_type(dot_projection_label_limit,nat).
1688		preference_val_type(dot_projection_process_only_explored,bool).
1689		preference_val_type(dot_use_unicode,bool).
1690		preference_val_type(dot_predicate_node_shape,dot_shape).
1691		preference_val_type(dot_expression_node_shape,dot_shape).
1692		preference_val_type(dot_var_mod_hide_only_written,bool).
1693
1694		preference_val_type(mc_dc_default_level,nat).
1695
1696		preference_val_type(dot_enabling_show_readwrites,bool).
1697
1698		preference_val_type(dot_definitions_use_sub_graph,bool).
1699		preference_val_type(dot_definitions_show_all,bool).
1700		preference_val_type(dot_state_graph_decompose,bool).
1701
1702		preference_val_type(font_name,string).
1703		preference_val_type(font_size_only,nat1).
1704		preference_val_type(font_size,string).
1705		preference_val_type(use_font_size_for_columns,bool).
1706		preference_val_type(allow_source_code_editing,bool).
1707		preference_val_type(show_line_numbers,bool).
1708		%preference_val_type(show_full_error_span,bool).
1709		preference_val_type(highlight_brackets,bool).
1710		preference_val_type(highlight_current_line,bool).
1711		preference_val_type(ask_when_content_changed,bool).
1712
1713		preference_val_type(user_not_beginner,bool).
1714		preference_val_type(user_is_an_expert_with_accessto_source_distribution,bool).
1715		%preference_val_type(default_to_runtime_type_checking_on_startup_for_expert,bool).
1716		preference_val_type(path_to_probe,path).
1717		%preference_val_type(path_to_fuzz,path).
1718		preference_val_type(path_to_fdr,path).
1719		preference_val_type(path_to_csp_typechecker,path).
1720		preference_val_type(path_to_bcomp,path). % Atelier B parser & type checker
1721		preference_val_type(path_to_java,path). % Path to Java
1722		preference_val_type(path_to_java_parser,path). % Path to probcliparser.java or cliparser, default ''
1723		preference_val_type(path_to_atb_krt,path).
1724		preference_val_type(try_atb_provers,bool).
1725		preference_val_type(smtlib2b_arrays_as_sets,bool).
1726		preference_val_type(smtlib2b_cleanup_predicate,bool).
1727		preference_val_type(symbolic_mc_try_other_solvers,bool).
1728		preference_val_type(path_to_spin,path).
1729		preference_val_type(path_to_cspm,path).
1730		preference_val_type(path_to_text_editor,path).
1731		preference_val_type(path_to_text_editor_launch,path).
1732		preference_val_type(number_of_recent_documents,nat).
1733		preference_val_type(number_of_searched_patterns,nat).
1734		preference_val_type(number_of_replaced_patterns,nat).
1735		preference_val_type(number_of_eval_history_elements,nat).
1736		preference_val_type(number_of_eval_csp_history_elements,nat).
1737		preference_val_type(number_of_checked_ltl_formulas,nat).
1738		preference_val_type(ltl_to_ba_tool,path).
1739		preference_val_type(path_to_clingo,path).
1740
1741		preference_val_type(do_syntax_highlighting,bool).
1742		preference_val_type(sh_type_colour,rgb_color).
1743		preference_val_type(sh_logical_colour,rgb_color).
1744		preference_val_type(sh_assignments_colour,rgb_color).
1745		preference_val_type(sh_operators,rgb_color).
1746		preference_val_type(sh_top_level_keywords,rgb_color).
1747		preference_val_type(sh_control_keywords,rgb_color).
1748		%preference_val_type(sh_includes_keywords,rgb_color).
1749		preference_val_type(sh_comments,rgb_color).
1750		preference_val_type(sh_pragmas,rgb_color).
1751		preference_val_type(sh_unsupported_background,rgb_color).
1752
1753		preference_val_type(expand_forall_upto,nat).
1754		preference_val_type(double_evaluation_when_analysing,bool).
1755		preference_val_type(prob_safe_mode,bool).
1756		preference_val_type(expand_avl_upto,int).
1757		preference_val_type(show_bvisual_formula_functor_from,int).
1758		preference_val_type(show_bvisual_proof_info_icons,bool).
1759		preference_val_type(show_bvisual_formula_explanations,bool).
1760		preference_val_type(formula_tree_minimal_timeout,nat).
1761		preference_val_type(formula_tree_maximal_timeout,nat).
1762		preference_val_type(show_function_tuples_in_property,bool).
1763		preference_val_type(bugly_pp_scrambling,bool).
1764		preference_val_type(pp_propositional_logic_mode,bool).
1765		preference_val_type(pp_wd_infos,bool).
1766		preference_val_type(pp_with_terminal_colour,bool).
1767		preference_val_type(wd_ignore_external_funs,bool).
1768		preference_val_type(wd_skip_finite_pos,bool).
1769		preference_val_type(wd_analysis_for_animation,bool).
1770		preference_val_type(z3_solve_for_animation,bool).
1771		preference_val_type(add_wd_pos_for_z3,bool).
1772		preference_val_type(do_not_print_wd_errors,bool).
1773
1774		preference_val_type(allow_new_ops_in_refinement,bool).
1775		preference_val_type(allow_local_operation_calls,bool).
1776		preference_val_type(allow_operation_calls_in_expr,bool).
1777		preference_val_type(allow_let_to_reuse_introduced_ids,bool).
1778		preference_val_type(use_po,bool).
1779		preference_val_type(try_operation_reuse,axbool). % false,true,full,auto
1780		preference_val_type(try_operation_reuse_for_invariants,bool).
1781		preference_val_type(operation_reuse_setting,xbool).
1782		preference_val_type(randomise_operation_order,bool).
1783		preference_val_type(randomise_enumeration_order,bool).
1784		preference_val_type(perform_enumeration_order_analysis,bool).
1785
1786		preference_val_type(set_rand,bool).
1787		preference_val_type(rand_seed,nat).
1788
1789		preference_val_type(alloy_use_implementable_integers,bool).
1790		preference_val_type(alloy_scopeless_translation,bool).
1791		preference_val_type(alloy_translation_for_proof,bool).
1792		preference_val_type(alloy_strict_integers,bool).
1793
1794		preference_val_type(use_scope_predicate,bool).
1795		preference_val_type(use_ignore_pragmas,bool).
1796		%% Options' meaning
1797		% disabled: skipping guard evaluation of actions known to be disabled at state
1798		% enabled: skipping guard evaluation of actions known to be enabled at state
1799		% full: skipping guard evaluations of actions known to be enabled or disabled at state
1800		% disabled2, enabled2, full2: same for these, but another (more precise) way for computing the sets of enabled and disabled actions is used
1801		%preference_val_type(pge,[off,disabled,enabled,full,disabled2,enabled2,full2]).
1802
1803		preference_val_type(use_cbc_analysis,bool).
1804		preference_val_type(timeout_cbc_analysis,nat1).
1805
1806		preference_val_type(por,[off,ample_sets,ample_sets2]).
1807		preference_val_type(por_heur,[first,random,minimal]).
1808		preference_val_type(use_safety_ltl_model_checker,bool).
1809
1810		preference_val_type(enable_graph,bool).
1811		preference_val_type(enable_graph_depth,int).
1812
1813		preference_val_type(dependency_enable_predicates,bool).
1814
1815		preference_val_type(filter_unused_constants,bool).
1816		preference_val_type(translate_force_all_typing_infos,bool).
1817		preference_val_type(translate_print_typing_infos,bool).
1818		preference_val_type(translate_print_frozen_infos,bool).
1819		preference_val_type(translate_ids_to_parseable_format,bool).
1820		preference_val_type(translate_suppress_rodin_positions_flag,bool).
1821		preference_val_type(translate_print_all_sequences,bool).
1822		preference_val_type(translate_print_cs_style_sequences,bool).
1823		preference_val_type(translation_limit_for_table_commands,int).
1824		preference_val_type(visb_allow_variables_for_objects,bool).
1825		preference_val_type(visb_show_debug_infos,bool).
1826		preference_val_type(trace_generation_limit,nat).
1827		preference_val_type(trace_generation_time_out,nat).
1828
1829
1830		preference_val_type(disprover_mode,bool).
1831		preference_val_type(allow_improving_wd_mode,bool).
1832		preference_val_type(trace_upon_error,bool).
1833		preference_val_type(tlc_number_of_workers,nat1).
1834		preference_val_type(tlc_use_prob_constant_setup,bool).
1835		preference_val_type(error_log_file,path).
1836
1837		preference_val_type(unsat_core_algorithm,[divide_and_conquer,linear,linear_greedy,linear_greedy_decompose]).
1838
1839		preference_val_type(port, nat1).
1840		preference_val_type(ip, string).
1841		preference_val_type(max_states, nat).
1842		preference_val_type(tmpdir, path).
1843		preference_val_type(logdir, path).
1844		preference_val_type(proxynumber, nat).
1845		preference_val_type(queue_threshold, nat1).
1846		preference_val_type(hash_cycle, nat).
1847		preference_val_type(cdclt_perform_static_analysis,bool).
1848		preference_val_type(cdclt_perform_symmetry_breaking,bool).
1849		preference_val_type(cdclt_use_idl_theory_solver,bool).
1850		preference_val_type(prob_version_info, string).
1851		preference_val_type(prob_revision_info, string).
1852		preference_val_type(prob_lastchangedate_info, string).
1853
1854		preference_val_type(xtl_safe_mode, bool).
1855
1856		preference_val_type(machines_path,path). %directory_path). % preference not so critical; default value may not exist
1857
1858
1859		% obtain list of all valid values, e.g. for ProB2-UI
1860		preference_val_type_list(Pref,ValList) :-
1861		preference_val_type(Pref,Type),
1862		val_list_for_type(Type,ValList).
1863
1864		val_list_for_type(Type,List) :- is_list(Type), !, Type=List.
1865		val_list_for_type(Type,List) :- list_valid_type_vals(Type,List), !.
1866		val_list_for_type(Type,List) :- pref_type_synonym(Type,List), !.
1867		val_list_for_type(Type,Type). % no enumeration of valid values possible - provide type name
1868
1869		list_valid_type_vals(axbool,[false,true,full,auto]).
1870		list_valid_type_vals(xbool,[false,true,full]).
1871		list_valid_type_vals(dbool,[default,false,true]). % maybe put these in pref_type_synonym
1872		list_valid_type_vals(dot_shape,Opt) :- findall(X,valid_dot_shape(X),Opt).
1873		list_valid_type_vals(dot_node_style,Opt) :- findall(X,valid_dot_node_style(X),Opt).
1874		list_valid_type_vals(dot_line_style,Opt) :- findall(X,valid_dot_line_style(X),Opt).
1875		list_valid_type_vals(labeling_option,[anti_first_fail,dom_w_deg,
1876		ff, % first_fail
1877		ffc, % most_constrained
1878		impact,leftmost,min,max,max_regret,occurrence]).
1879		/* ------------------------- */
1880
1881
1882		% now in basic_tests.pl
1883		%:- assert_must_succeed( \+((preference_category(P,_D),\+preference_default_value(P,_Val)))).
1884		%:- assert_must_succeed( \+((preference_default_value(P,_D), \+preference_category(P,_Val)))).
1885		preference_category(unsat_core_algorithm,advanced).
1886		preference_category(maxint,animation).
1887		preference_category(minint,animation).
1888		preference_category(globalsets_fdrange,animation).
1889		preference_category(do_invariant_checking,advanced).
1890		preference_category(do_assert_checking,advanced).
1891		%preference_category(do_full_invariant_checking,animation).
1892		%preference_category(use_new_kernel,advanced).
1893		preference_category(find_abort_values,animation).
1894		preference_category(raise_abort_immediately,advanced).
1895		preference_category(treat_outermost_pre_as_select,animation).
1896		preference_category(require_operations_to_assign_all_outputs,animation).
1897		preference_category(allow_operations_to_read_outputs,advanced).
1898		preference_category(allow_operation_calls_for_uses,advanced).
1899		preference_category(allow_overriding_initialisation,advanced).
1900		preference_category(allow_simultaneous_assignments,hidden). % only useful for loading and inspecting AST
1901		preference_category(allow_arith_operators_on_reals,advanced).
1902		preference_category(solver_for_reals,advanced).
1903		preference_category(cspm_animate_all_processes_without_arguments,csp_prefs).
1904		preference_category(cspm_animate_all_processes,csp_prefs).
1905		%preference_category(cspm_display_inout,csp_prefs).
1906		preference_category(cspm_detailed_animation,csp_prefs).
1907		preference_category(cspm_strip_source_location,csp_prefs).
1908		%preference_category(csp_event_visible_to_user,csp_prefs).
1909		%preference_category(cspm_allow_incomplete_records,csp_prefs).
1910		%preference_category(findOnlyOneSol,advanced).
1911		preference_category(show_eventb_any_arguments,animation).
1912		preference_category(maxNrOfInitialisations,animation).
1913		preference_category(randomisedRestartInitalisations,advanced).
1914		preference_category(maxNrOfEnablingsPerOperation,animation).
1915		preference_category(time_out,animation).
1916		preference_category(number_animated_abstractions,animation).
1917		preference_category(number_skipped_refined_machines,animation).
1918		preference_category(show_initialisation_arguments,animation).
1919		preference_category(deterministic_trace_replay,hidden).
1920		%preference_category(animate_skip_operations,animation).
1921		preference_category(debug_time_out_factor,advanced).
1922		%preference_category(use_large_jvm_for_parser,advanced).
1923		preference_category(jvm_parser_heap_size_mb,advanced).
1924		preference_category(jvm_parser_additional_args,advanced).
1925		preference_category(jvm_parser_position_infos,advanced).
1926		preference_category(jvm_parser_fastrw,hidden).
1927		preference_category(jvm_parser_force_parsing,bool).
1928		preference_category(convert_comprehension_sets_into_closures,animation).
1929		preference_category(comprehension_set_symbolic_limit,animation).
1930		preference_category(use_clpfd_solver,animation).
1931		preference_category(clpfd_solver_label_option,advanced).
1932		preference_category(use_chr_solver,animation).
1933		preference_category(data_validation_mode,advanced).
1934		preference_category(use_smt_mode,advanced).
1935		preference_category(solver_strength,advanced).
1936		preference_category(use_common_subexpression_elimination,advanced).
1937		preference_category(remove_implied_constraints,advanced).
1938		preference_category(lift_existential_quantifiers,advanced).
1939		preference_category(use_common_subexpression_also_for_predicates,advanced).
1940		preference_category(use_common_subexpression_also_for_substitutions,advanced).
1941		preference_category(use_common_subexpression_wd_only,advanced).
1942		preference_category(normalize_ast,hidden).
1943		preference_category(normalize_ast_sort_commutative,hidden).
1944		preference_category(optimize_ast,advanced).
1945		%preference_category(optimize_enum_set_elems,hidden).
1946		preference_category(useless_code_elimination,advanced).
1947		preference_category(compile_while_body,advanced).
1948		preference_category(detect_lambdas,advanced).
1949		preference_category(auto_detect_theory_ops,advanced).
1950		preference_category(ltsmin_guard_splitting,hidden).
1951		preference_category(ltsmin_do_not_evaluate_top_level_guards,hidden).
1952		preference_category(fail_if_clpfd_timeout,advanced).
1953		%preference_category(allow_recursive_closures,hidden).
1954		preference_category(use_static_ordering,advanced).
1955		preference_category(try_use_state_packing,advanced).
1956		preference_category(use_state_packing,hidden). % derived from try_use_state_packing
1957		preference_category(force_state_packing_for_closures,hidden).
1958		preference_category(provide_trace_information,advanced).
1959		preference_category(prob_profiling_on,advanced).
1960		preference_category(prob_source_profiling_on,advanced).
1961		preference_category(performance_monitoring_on,advanced).
1962		preference_category(performance_monitoring_expansion_limit,advanced).
1963		preference_category(partition_predicates,advanced).
1964		preference_category(partition_predicates_inline_equalities,advanced).
1965		preference_category(use_closure_expansion_memoization,advanced).
1966		preference_category(use_function_memoization,advanced).
1967		preference_category(allow_incomplete_partial_setup_constants,advanced).
1968		preference_category(re_execute_operations_with_side_effects,advanced).
1969		preference_category(warn_if_definition_hides_variable,advanced).
1970		preference_category(type_check_definitions,advanced).
1971		%preference_category(warn_when_expanding_infinite_closures,advanced).
1972		preference_category(allow_enumeration_of_infinite_types,advanced).
1973		preference_category(strict_raise_warnings,advanced).
1974		preference_category(strict_raise_enum_warnings,hidden). % only for testing
1975		preference_category(clash_strict_checks,advanced).
1976		preference_category(perform_stricter_static_checks,hidden). % set by prob
1977		preference_category(ignore_prj_types,advanced).
1978		%preference_category(never_convert_closures_into_explicit_form,hidden).
1979		%preference_category(convert_types_into_closures,animation).
1980		%preference_category(convert_closures_into_explicit_form_for_store,animation).
1981		%preference_category(allow_empty_global_sets,advanced).
1982		preference_category(ignore_hash_collisions,advanced).
1983		preference_category(forget_state_space,advanced).
1984		preference_category(store_only_one_incoming_transition,advanced).
1985		preference_category(mc_continue_after_error,hidden).
1986		%preference_category(enable_permutation_reducation,advanced).
1987		%preference_category(use_symmetry_marker_hash,advanced).
1988		%preference_category(enable_canonical_symmetry,advanced).
1989		%preference_category(use_nauty_symmetry_reduction,advanced).
1990		preference_category(symmetry_mode,hidden).
1991		preference_category(use_static_symmetry_detection,advanced).
1992		%preference_category(bool_expression_as_predicate,hidden).
1993		preference_category(allow_untyped_identifiers,hidden).
1994		preference_category(repl_unicode,syntax_highlighting).
1995		preference_category(repl_cache_parsing,hidden).
1996		preference_category(cache_constants,hidden).
1997		preference_category(cache_operations,hidden).
1998		preference_category(cache_operations_runtime_limit,hidden).
1999		preference_category(latex_encoding,latex).
2000		preference_category(latex_pp_greek_ids,latex).
2001		preference_category(xml_encoding,hidden).
2002		preference_category(view_probcli_errors_using_bbresults,hidden).
2003		preference_category(eventtrace,animation).
2004		preference_category(store_event_transinfo,hidden). % automatically set by probcli
2005		preference_category(use_solver_on_load,hidden). % hidden for the moment
2006		%preference_category(try_kodkod_on_load,hidden).
2007		preference_category(kodkod_for_components,advanced).
2008		preference_category(kodkod_raise_warnings,advanced).
2009		preference_category(kodkod_max_nr_solutions,advanced).
2010		preference_category(kodkod_symmetry_level,advanced).
2011		preference_category(kodkod_sat_solver,advanced).
2012		preference_category(smt_supported_interpreter,advanced).
2013		preference_category(sat_supported_interpreter,advanced).
2014		preference_category(use_record_construction,advanced).
2015		preference_category(seen_machines_included,animation).
2016		preference_category(allow_sequence_operators_on_strings,animation).
2017
2018		%preference_category(test_case_gen_stop_at_first_error,advanced).
2019		preference_category(prefix_internal_operation_arguments,advanced).
2020		preference_category(generate_minimal_nr_of_testcases,advanced).
2021		preference_category(use_tk_custom_state_viewer,hidden). % actually : if user wants to turn it off; simply do not define ANIMATION_FUNCTION
2022		preference_category(tk_custom_state_viewer_font_name,hidden).
2023		preference_category(tk_custom_state_viewer_font_size,hidden).
2024		preference_category(tk_custom_state_viewer_padding,animation).
2025		preference_category(tk_custom_state_viewer_str_padding,animation).
2026		preference_category(use_small_window,animation).
2027		preference_category(tk_show_source_pane,animation).
2028
2029		preference_category(path_to_ltsmin,advanced).
2030
2031
2032		preference_category(dot_print_node_ids,dot).
2033		preference_category(dot_print_transition_ids,dot).
2034		preference_category(dot_print_use_constants,dot).
2035		preference_category(dot_print_node_info,dot).
2036		preference_category(dot_print_edge_labels,dot).
2037		preference_category(dot_print_action_arguments,dot).
2038		preference_category(dot_print_functions,dot).
2039		preference_category(dot_print_self_loops,dot).
2040		preference_category(dot_print_root,dot).
2041		%preference_category(dot_print_leaves,dot).
2042		preference_category(dot_print_arc_colors,dot).
2043		preference_category(dot_use_ps_viewer,hidden).
2044		preference_category(path_to_dotty,dot).
2045		preference_category(path_to_dot,dot).
2046		preference_category(dot_default_engine,dot).
2047		preference_category(path_to_ps_viewer,dot).
2048		preference_category(dot_root_shape,dot).
2049		preference_category(dot_node_penwidth,dot).
2050		preference_category(dot_edge_penwidth,dot).
2051		preference_category(dot_normal_node_shape,dot).
2052		preference_category(dot_current_node_shape,dot).
2053		preference_category(dot_open_node_colour,dot).
2054		preference_category(dot_scope_limit_node_colour,dot).
2055		preference_category(dot_normal_node_colour,dot).
2056		preference_category(dot_invariant_violated_node_colour,dot).
2057		preference_category(dot_fill_normal_nodes,dot).
2058		preference_category(dot_normal_arc_colour,dot).
2059
2060		%preference_category(dot_font_size,hidden).
2061		preference_category(dot_node_font_size,dot).
2062		preference_category(dot_edge_font_size,dot).
2063		preference_category(dot_with_page_size,dot).
2064		preference_category(dot_horizontal_layout,dot).
2065		preference_category(dot_colour_goal_nodes,dot).
2066		preference_category(dot_goal_node_colour,dot).
2067		preference_category(dot_print_node_properties,dot).
2068		preference_category(dot_counterexample_node_colour,dot).
2069		preference_category(dot_counterexample_op_colour,dot).
2070
2071		% preferences used by rule_validation.pl for rule dependency graph:
2072		preference_category(successful_rule_colour,rule_dependency_graph).
2073		preference_category(failed_rule_colour,rule_dependency_graph).
2074		preference_category(disabled_rule_colour,rule_dependency_graph).
2075		preference_category(not_checked_rule_colour,rule_dependency_graph).
2076		preference_category(rule_graph_shape,rule_dependency_graph).
2077		preference_category(executed_computation_colour,rule_dependency_graph).
2078		preference_category(not_executed_computation_colour,rule_dependency_graph).
2079		preference_category(disabled_computation_colour,rule_dependency_graph).
2080		preference_category(computation_graph_shape,rule_dependency_graph).
2081		preference_category(succeeded_dependency_colour,rule_dependency_graph).
2082		preference_category(failed_dependency_colour,rule_dependency_graph).
2083		preference_category(normal_dependency_colour,rule_dependency_graph).
2084
2085		preference_category(dot_event_hierarchy_horizontal,dot_event_hierarchy).
2086		preference_category(dot_event_hierarchy_machine_colour,dot_event_hierarchy).
2087		preference_category(dot_event_hierarchy_refines_colour,dot_event_hierarchy).
2088		preference_category(dot_event_hierarchy_new_event_colour,dot_event_hierarchy).
2089		preference_category(dot_event_hierarchy_rename_event_colour,dot_event_hierarchy).
2090		preference_category(dot_event_hierarchy_unchanged_event_colour,dot_event_hierarchy).
2091		preference_category(dot_event_hierarchy_rename_unchanged_event_colour,dot_event_hierarchy).
2092		preference_category(dot_event_hierarchy_grd_strengthening_event_colour,dot_event_hierarchy).
2093		preference_category(dot_event_hierarchy_grd_keeping_event_colour,dot_event_hierarchy).
2094		preference_category(dot_event_hierarchy_edge_colour,dot_event_hierarchy).
2095		preference_category(dot_event_hierarchy_extends_colour,dot_event_hierarchy).
2096		preference_category(dot_hierarchy_show_extra_detail,dot_event_hierarchy).
2097
2098
2099		preference_category(dot_projection_non_det_edge_colour,dot_projection).
2100		preference_category(dot_projection_det_edge_colour,dot_projection).
2101		preference_category(dot_projection_non_definite_edge_style,dot_projection).
2102		preference_category(dot_projection_definite_edge_style,dot_projection).
2103		preference_category(dot_projection_label_limit,dot_projection).
2104		preference_category(dot_projection_process_only_explored,dot_projection).
2105		preference_category(dot_use_unicode,dot_projection).
2106
2107		preference_category(dot_predicate_node_shape,dot_formula_tree).
2108		preference_category(dot_expression_node_shape,dot_formula_tree).
2109		preference_category(dot_var_mod_hide_only_written,dot_variable_modification).
2110
2111		preference_category(mc_dc_default_level,mc_dc_commands).
2112
2113		preference_category(dot_enabling_show_readwrites,dot).
2114
2115		preference_category(dot_definitions_use_sub_graph,dot_definitions).
2116		preference_category(dot_definitions_show_all,dot_definitions).
2117
2118		preference_category(dot_state_graph_decompose,dot_state_graph).
2119
2120		preference_category(dot_hierarchy_max_ids,dot_machine_hierarchy).
2121		preference_category(cbc_provide_explanations,cbc_commands).
2122
2123		preference_category(font_size,gui_prefs).
2124		preference_category(font_name,gui_prefs).
2125		preference_category(font_size_only,gui_prefs).
2126		preference_category(use_font_size_for_columns,advanced).
2127		preference_category(allow_source_code_editing,gui_prefs).
2128		preference_category(show_line_numbers,gui_prefs).
2129		preference_category(highlight_brackets,gui_prefs).
2130		preference_category(highlight_current_line,gui_prefs).
2131		preference_category(ask_when_content_changed,gui_prefs).
2132		preference_category(user_not_beginner,gui_prefs).
2133
2134		preference_category(user_is_an_expert_with_accessto_source_distribution,hidden).
2135		%preference_category(default_to_runtime_type_checking_on_startup_for_expert,hidden).
2136		preference_category(path_to_probe,csp_prefs).
2137		%preference_category(path_to_fuzz,advanced).
2138		preference_category(path_to_fdr,csp_prefs).
2139		preference_category(path_to_csp_typechecker,csp_prefs).
2140		preference_category(path_to_bcomp,advanced).
2141		preference_category(path_to_java,advanced).
2142		preference_category(path_to_java_parser,hidden).
2143		preference_category(path_to_atb_krt,advanced). % not yet used from within ProB Tcl/Tk, ...
2144		preference_category(try_atb_provers,advanced).
2145		preference_category(smtlib2b_arrays_as_sets,smtlib2b).
2146		preference_category(smtlib2b_cleanup_predicate,smtlib2b).
2147		preference_category(symbolic_mc_try_other_solvers,advanced).
2148		preference_category(path_to_spin,advanced).
2149		preference_category(path_to_cspm,advanced).
2150		preference_category(path_to_text_editor,advanced).
2151		preference_category(path_to_text_editor_launch,hidden).
2152		preference_category(number_of_recent_documents,advanced).
2153		preference_category(number_of_searched_patterns,advanced).
2154		preference_category(number_of_replaced_patterns,advanced).
2155		preference_category(number_of_eval_history_elements,advanced).
2156		preference_category(number_of_eval_csp_history_elements,advanced).
2157		preference_category(number_of_checked_ltl_formulas,advanced).
2158		preference_category(allow_new_ops_in_refinement,advanced).
2159		preference_category(allow_local_operation_calls,advanced).
2160		preference_category(allow_operation_calls_in_expr,advanced).
2161		preference_category(allow_let_to_reuse_introduced_ids,advanced).
2162		preference_category(use_po,advanced).
2163		preference_category(try_operation_reuse,advanced).
2164		preference_category(try_operation_reuse_for_invariants,advanced).
2165		preference_category(operation_reuse_setting,hidden).
2166		preference_category(randomise_operation_order,advanced).
2167		preference_category(randomise_enumeration_order,advanced).
2168		preference_category(perform_enumeration_order_analysis,advanced).
2169		preference_category(set_rand,advanced).
2170		preference_category(rand_seed,advanced).
2171		preference_category(ltl_to_ba_tool,advanced).
2172		preference_category(path_to_clingo,advanced).
2173
2174		preference_category(do_syntax_highlighting,syntax_highlighting).
2175		preference_category(sh_type_colour,syntax_highlighting).
2176		preference_category(sh_logical_colour,syntax_highlighting).
2177		preference_category(sh_assignments_colour,syntax_highlighting).
2178		preference_category(sh_operators,syntax_highlighting).
2179		preference_category(sh_top_level_keywords,syntax_highlighting).
2180		preference_category(sh_control_keywords,syntax_highlighting).
2181		%preference_category(sh_includes_keywords,syntax_highlighting).
2182		preference_category(sh_comments,syntax_highlighting).
2183		preference_category(sh_pragmas,syntax_highlighting).
2184		preference_category(sh_unsupported_background,syntax_highlighting).
2185
2186		preference_category(expand_forall_upto,advanced).
2187		preference_category(double_evaluation_when_analysing,advanced).
2188		preference_category(prob_safe_mode,advanced).
2189		preference_category(expand_avl_upto,advanced).
2190		preference_category(show_bvisual_formula_functor_from,advanced).
2191		preference_category(show_bvisual_proof_info_icons,advanced).
2192		preference_category(show_bvisual_formula_explanations,advanced).
2193		preference_category(formula_tree_minimal_timeout,dot_formula_tree).
2194		preference_category(formula_tree_maximal_timeout,dot_formula_tree).
2195		preference_category(show_function_tuples_in_property,animation).
2196		preference_category(bugly_pp_scrambling,advanced).
2197		preference_category(pp_propositional_logic_mode,hidden).
2198		preference_category(pp_wd_infos,hidden).
2199		preference_category(pp_with_terminal_colour,hidden).
2200		preference_category(wd_ignore_external_funs,wd_analyser).
2201		preference_category(wd_skip_finite_pos,wd_analyser).
2202		preference_category(wd_analysis_for_animation,wd_analyser).
2203		preference_category(z3_solve_for_animation,advanced).
2204		preference_category(add_wd_pos_for_z3,advanced).
2205		preference_category(do_not_print_wd_errors,hidden). % set by unsat core or by solver_interface
2206		%preference_category(show_full_error_span,hidden).
2207
2208		preference_category(machines_path,hidden).
2209
2210		preference_category(alloy_use_implementable_integers,alloy2b).
2211		preference_category(alloy_scopeless_translation,alloy2b).
2212		preference_category(alloy_translation_for_proof,alloy2b).
2213		preference_category(alloy_strict_integers,alloy2b).
2214
2215		/* Partial techniques for optimising the Model Checker */
2216
2217		preference_category(use_scope_predicate,advanced).
2218		preference_category(use_ignore_pragmas,advanced).
2219		%preference_category(pge,model_checker).
2220
2221		preference_category(use_cbc_analysis,advanced). % for por
2222		preference_category(timeout_cbc_analysis,advanced).
2223		preference_category(por,model_checker).
2224		preference_category(por_heur,model_checker).
2225		preference_category(use_safety_ltl_model_checker,model_checker).
2226		preference_category(enable_graph,model_checker).
2227		preference_category(enable_graph_depth,model_checker).
2228		preference_category(dependency_enable_predicates,model_checker).
2229
2230		preference_category(path_to_latex,latex).
2231
2232		%------------------------------------
2233
2234		preference_category(filter_unused_constants,advanced).
2235		preference_category(translate_force_all_typing_infos,hidden).
2236		preference_category(translate_print_typing_infos,hidden).
2237		preference_category(translate_print_frozen_infos,hidden).
2238		preference_category(translate_ids_to_parseable_format,hidden).
2239		preference_category(translate_suppress_rodin_positions_flag,hidden).
2240		preference_category(translate_print_all_sequences,hidden).
2241		preference_category(translate_print_cs_style_sequences,hidden).
2242
2243		preference_category(translation_limit_for_table_commands,wd_commands).
2244		preference_category(visb_allow_variables_for_objects,visb).
2245		preference_category(visb_show_debug_infos,visb).
2246
2247		preference_category(trace_generation_limit,trace_generator).
2248		preference_category(trace_generation_time_out,trace_generator).
2249
2250		preference_category(disprover_mode,advanced).
2251		preference_category(allow_improving_wd_mode,hidden).
2252		preference_category(trace_upon_error,hidden).
2253		preference_category(error_log_file,advanced).
2254		preference_category(tlc_number_of_workers,hidden).
2255		preference_category(tlc_use_prob_constant_setup,hidden).
2256
2257		preference_category(port, distb).
2258		preference_category(ip, distb).
2259		preference_category(max_states, distb).
2260		preference_category(tmpdir, distb).
2261		preference_category(logdir, distb).
2262		preference_category(proxynumber, distb).
2263		preference_category(queue_threshold, distb).
2264		preference_category(hash_cycle, distb).
2265
2266		preference_category(cdclt_perform_static_analysis, cdclt).
2267		preference_category(cdclt_perform_symmetry_breaking, cdclt).
2268		preference_category(cdclt_use_idl_theory_solver,cdclt).
2269
2270		preference_category(prob_version_info,hidden).
2271		preference_category(prob_revision_info, hidden).
2272		preference_category(prob_lastchangedate_info, hidden).
2273
2274		preference_category(xtl_safe_mode,hidden).
2275
2276		/* ------------------------- */
2277
2278		% secondary, alternate additional categories:
2279		alternate_preference_category(dot_print_node_ids,dot_state_space).
2280		alternate_preference_category(dot_print_transition_ids,dot_state_space).
2281		alternate_preference_category(dot_print_use_constants,dot_state_space). %?
2282		alternate_preference_category(dot_print_node_info,dot_state_space).
2283		alternate_preference_category(dot_print_edge_labels,dot_state_space).
2284		alternate_preference_category(dot_print_action_arguments,dot_state_space).
2285		alternate_preference_category(dot_print_functions,dot_state_space).
2286		alternate_preference_category(dot_print_self_loops,dot_state_space).
2287		alternate_preference_category(dot_print_root,dot_state_space).
2288		alternate_preference_category(dot_print_arc_colors,dot_state_space).
2289		alternate_preference_category(dot_root_shape,dot_state_space).
2290		alternate_preference_category(dot_node_penwidth,dot_state_space).
2291		alternate_preference_category(dot_edge_penwidth,dot_state_space).
2292		alternate_preference_category(dot_normal_node_shape,dot_state_space).
2293		alternate_preference_category(dot_current_node_shape,dot_state_space).
2294		alternate_preference_category(dot_open_node_colour,dot_state_space).
2295		alternate_preference_category(dot_scope_limit_node_colour,dot_state_space).
2296		alternate_preference_category(dot_normal_node_colour,dot_state_space).
2297		alternate_preference_category(dot_invariant_violated_node_colour,dot_state_space).
2298		alternate_preference_category(dot_fill_normal_nodes,dot_state_space).
2299		alternate_preference_category(dot_normal_arc_colour,dot_state_space).
2300		alternate_preference_category(dot_node_font_size,dot_state_space).
2301		alternate_preference_category(dot_edge_font_size,dot_state_space).
2302		alternate_preference_category(dot_colour_goal_nodes,dot_state_space).
2303		alternate_preference_category(dot_goal_node_colour,dot_state_space).
2304		alternate_preference_category(dot_print_node_properties,dot_state_space).
2305		alternate_preference_category(dot_horizontal_layout,dot_state_space).
2306
2307		alternate_preference_category(dot_use_unicode,dot_formula_tree).
2308
2309		alternate_preference_category(dot_event_hierarchy_unchanged_event_colour,dot_variable_hierarchy).
2310		alternate_preference_category(dot_event_hierarchy_new_event_colour,dot_variable_hierarchy).
2311		alternate_preference_category(dot_event_hierarchy_edge_colour,dot_variable_hierarchy).
2312		alternate_preference_category(dot_hierarchy_show_extra_detail,dot_variable_hierarchy).
2313
2314		% these commands for the graph_canon / state_as_dot_graph state_graph:
2315		alternate_preference_category(dot_normal_node_shape,state_as_graph).
2316		alternate_preference_category(dot_state_graph_decompose,state_as_graph).
2317		%alternate_preference_category(dot_with_page_size,state_as_graph).
2318		alternate_preference_category(dot_horizontal_layout,state_as_graph).
2319
2320		% these commands use the dot_graph_generator:
2321		alternate_preference_category(X,dot_variable_modification) :- alternate_preference_category(X,dot_graph_generator).
2322		alternate_preference_category(X,dot_event_hierarchy) :- alternate_preference_category(X,dot_graph_generator).
2323		alternate_preference_category(X,dot_variable_hierarchy) :- alternate_preference_category(X,dot_graph_generator).
2324		alternate_preference_category(X,dot_projection) :- alternate_preference_category(X,dot_graph_generator).
2325		alternate_preference_category(dot_print_self_loops,dot_projection).
2326		alternate_preference_category(X,dot_definitions) :- alternate_preference_category(X,dot_graph_generator).
2327		alternate_preference_category(timeout_cbc_analysis,dot_enable_graph).
2328		alternate_preference_category(X,dot_enable_graph) :- alternate_preference_category(X,dot_graph_generator).
2329
2330		% preferences used by dot_graph_generator.pl:
2331		alternate_preference_category(dot_print_self_loops,dot_graph_generator).
2332		alternate_preference_category(dot_print_arc_colors,dot_graph_generator).
2333		alternate_preference_category(dot_node_font_size,dot_graph_generator).
2334		alternate_preference_category(dot_edge_font_size,dot_graph_generator).
2335		alternate_preference_category(dot_edge_penwidth,dot_graph_generator).
2336		alternate_preference_category(dot_with_page_size,dot_graph_generator).
2337		alternate_preference_category(dot_horizontal_layout,dot_graph_generator).
2338		alternate_preference_category(dot_default_engine,dot_graph_generator).
2339		alternate_preference_category(path_to_dot,dot_graph_generator).
2340
2341		alternate_preference_category(translation_limit_for_table_commands,cbc_commands).
2342		alternate_preference_category(translation_limit_for_table_commands,table_commands).
2343
2344		/* ------------------------- */
2345		% now in basic_tests.pl
2346		%:- assert_must_succeed( \+((preferences:obsolete_preference(P),preference_default_value(P,_Val)))).
2347		obsolete_preference(optimize_enum_set_elems).
2348		obsolete_preference(warn_when_expanding_infinite_closures).
2349		obsolete_preference(do_neginvariant_checking). % use double_evaluation_when_analysing
2350		obsolete_preference(check_prolog_b_ast).
2351		obsolete_preference(use_large_jvm_for_parser).
2352		obsolete_preference(default_to_runtime_type_checking_on_startup_for_expert).
2353		obsolete_preference(animate_skip_operations).
2354		obsolete_preference(debug_try_minimise).
2355		obsolete_preference(convert_types_into_closures).
2356		obsolete_preference(use_avl_trees_for_sets).
2357		obsolete_preference(dot_font_size).
2358		obsolete_preference(only_label_base_types).
2359		obsolete_preference(use_new_kernel).
2360		obsolete_preference(findOnlyOneSol).
2361		obsolete_preference(enable_permutation_reducation).
2362		obsolete_preference(use_symmetry_marker_hash).
2363		obsolete_preference(enable_canonical_symmetry).
2364		obsolete_preference(use_nauty_symmetry_reduction).
2365		obsolete_preference(do_full_invariant_checking).
2366		obsolete_preference(test_case_gen_stop_at_first_error).
2367		obsolete_preference(use_failure_refinement).
2368		obsolete_preference(do_on_the_fly_refinement).
2369		obsolete_preference(never_convert_closures_into_explicit_form).
2370		obsolete_preference(allow_empty_global_sets).
2371		obsolete_preference(multilevel_animation).
2372		obsolete_preference(remove_multilevel_prefix).
2373		obsolete_preference(cspm_allow_incomplete_records).
2374		obsolete_preference(cspm_display_inout).
2375		obsolete_preference(allow_recursive_closures).
2376		obsolete_preference(absint_abstract_domain_module).
2377		obsolete_preference(absint_use_widening).
2378		obsolete_preference(absint_soft_widening).
2379		obsolete_preference(absint_extrapolation_threshold).
2380		obsolete_preference(convert_closures_into_explicit_form_for_store).
2381		obsolete_preference(use_por).
2382		obsolete_preference(use_pge).
2383		obsolete_preference(pge_dis).
2384		obsolete_preference(pge_ind).
2385		obsolete_preference(pge_keep).
2386		obsolete_preference(pge).
2387		obsolete_preference(use_pge_keep).
2388		obsolete_preference(use_pge_dis).
2389		obsolete_preference(use_pge_ind).
2390		obsolete_preference(selected_bparser).
2391		obsolete_preference(dot_print_leaves).
2392		obsolete_preference(csp_event_visible_to_user).
2393		obsolete_preference(path_to_fuzz).
2394		obsolete_preference(use_optimistic_por).
2395		obsolete_preference(show_full_error_span).
2396		obsolete_preference(path_to_sfdp).
2397		obsolete_preference(dot_use_alterate_dot_viewer).
2398		obsolete_preference(path_to_dotty2).
2399		obsolete_preference(prob2_trace_file).
2400		obsolete_preference(prob2_trace_file_gen_unique_name).
2401		obsolete_preference(try_kodkod_on_load).
2402
2403		% might be re-included later
2404		obsolete_preference(plugin(absint,use_widening)).
2405		obsolete_preference(plugin(absint,soft_widening)).
2406		obsolete_preference(plugin(absint,extrapolation_threshold)).
2407		obsolete_preference(plugin(absint,retract_widening_related_states)).
2408
2409		obsolete_preference(use_por_for_ltl).
2410
2411		% replaced by api calls
2412		obsolete_preference(path_to_smt_solver).
2413
2414		% has been renamed
2415		obsolete_preference(try_atb_provers_for_smtlib).
2416
2417		obsolete_preference(bool_expression_as_predicate). % BOOL_AS_PREDICATE
2418
2419
2420		% VOLATILE
2421		% not necessary to store in file; value will not be changed when loading pref file
2422		% dangerous preferences: user should explicitly reset it every time or put it explicitly into file
2423		volatile_preference(store_event_transinfo).
2424		volatile_preference(fail_if_clpfd_timeout).
2425		volatile_preference(ignore_hash_collisions).
2426		volatile_preference(forget_state_space).
2427		volatile_preference(store_only_one_incoming_transition).
2428		volatile_preference(mc_continue_after_error).
2429		volatile_preference(filter_unused_constants).
2430		volatile_preference(disprover_mode).
2431		volatile_preference(allow_improving_wd_mode).
2432		volatile_preference(trace_upon_error).
2433		volatile_preference(performance_monitoring_on).
2434		volatile_preference(translate_force_all_typing_infos).
2435		volatile_preference(translate_print_typing_infos).
2436		volatile_preference(translate_ids_to_parseable_format).
2437		volatile_preference(translate_suppress_rodin_positions_flag).
2438		volatile_preference(deterministic_trace_replay).
2439		%volatile_preference(bool_expression_as_predicate). % Deprecated
2440		volatile_preference(prob_version_info).
2441		volatile_preference(prob_revision_info).
2442		volatile_preference(prob_lastchangedate_info).
2443		volatile_preference(path_to_java_parser).
2444		volatile_preference(do_not_print_wd_errors). % set by unsat core
2445		volatile_preference(operation_reuse_setting). % computed
2446		volatile_preference(use_state_packing). % computed
2447
2448		read_only_preference(prob_version_info).
2449		read_only_preference(prob_revision_info).
2450		read_only_preference(prob_lastchangedate_info).
2451
2452		/* ------------------------- */
2453	?	is_of_type(El,Type) :- type_element(Type,El).
2454
2455		type_element(bool,true).
2456		type_element(bool,false).
2457		type_element(directory_path,X) :- atomic(X),check_directory_exists(X).
2458		type_element(int,X) :- integer(X).
2459		type_element(neg,X) :- integer(X), X=<0.
2460		type_element(nat,X) :- integer(X), X>=0.
2461		type_element(nat1,X) :- integer(X), X>0.
2462		type_element(range(Low,Up),X) :- number(X), X>=Low, X=<Up.
2463		type_element(string,X) :- atomic(X).
2464		type_element(path,X) :- atomic(X). % some paths are files, some directorys (.app) and some aliases
2465		type_element(file_path,X) :- atomic(X),check_file_exists(X).
2466		type_element(term,X) :- nonvar(X).
2467	?	type_element(ListOfCsts,X) :- ListOfCsts=[_|_], member(X,ListOfCsts).
2468		type_element(dot_shape,X) :- valid_dot_shape(X).
2469		type_element(dot_node_style,X) :- valid_dot_node_style(X).
2470		type_element(dot_line_style,X) :- valid_dot_line_style(X).
2471	?	type_element(rgb_color,X) :- valid_rgb_color(X).
2472	?	type_element(Type,X) :- list_valid_type_vals(Type,List),!, member(X,List).
2473		type_element(Type,X) :- pref_type_synonym(Type,List),!,
2474	?	is_of_type(X,List). % cvc4 not working
2475
2476		pref_type_synonym(por,[off,ample_sets,ample_sets2]).
2477		pref_type_synonym(solver_name,[cdclt,clingo,kodkod,prob,sat,'sat-z3',z3,z3cns,z3axm]).
2478		pref_type_synonym(text_encoding,[auto, 'ASCII', % ascii not directly listed in manual page, but is on web page below
2479		'ISO-8859-1','ISO-8859-2',
2480		'ISO-8859-15',
2481		'UTF-8','UTF-16','UTF-16LE','UTF-16BE','UTF-32','UTF-32LE','UTF-32BE',
2482		'ANSI_X3.4-1968', 'windows 1252']).
2483		% a few more names seem to be allowed (section 4.6.7.5 of SICStus handbook)
2484		% few from https://www.iana.org/assignments/character-sets/character-sets.xhtml
2485		% using illegal names leads to SPIO_E_CHARSET_NOT_FOUND exception
2486
2487		valid_dot_node_style(bold).
2488		valid_dot_node_style(dashed).
2489		valid_dot_node_style(diagonals).
2490		valid_dot_node_style(dotted).
2491		valid_dot_node_style(filled).
2492		valid_dot_node_style(invisible).
2493		valid_dot_node_style(rounded).
2494		valid_dot_node_style(solid).
2495		valid_dot_node_style(striped).
2496		valid_dot_node_style(wedged).
2497		valid_dot_node_style(''). % revert to default
2498
2499		valid_dot_line_style(bold).
2500		valid_dot_line_style(dashed).
2501		valid_dot_line_style(dotted).
2502		valid_dot_line_style(invis).
2503		valid_dot_line_style(solid).
2504		valid_dot_line_style('').
2505
2506		valid_dot_shape('Mcircle').
2507		valid_dot_shape('Mdiamond').
2508		valid_dot_shape('Msquare').
2509		valid_dot_shape(box).
2510		valid_dot_shape(box3d). % requires newer version of graphviz
2511		valid_dot_shape(cds). % requires newer version of graphviz
2512		valid_dot_shape(circle).
2513		valid_dot_shape(component). % requires newer version of graphviz
2514		valid_dot_shape(cylinder). % requires newer version of graphviz
2515		valid_dot_shape(diamond).
2516		valid_dot_shape(doublecircle).
2517		valid_dot_shape(doubleoctagon).
2518		valid_dot_shape(egg).
2519		valid_dot_shape(ellipse).
2520		valid_dot_shape(folder). % requires newer version of graphviz
2521		valid_dot_shape(hexagon).
2522		valid_dot_shape(house).
2523		valid_dot_shape(invhouse).
2524		valid_dot_shape(invtrapez).
2525		valid_dot_shape(invtrapezium).
2526		valid_dot_shape(invtriangle).
2527		valid_dot_shape(larrow). % requires newer version of graphviz
2528		valid_dot_shape(lpromoter). % requires newer version of graphviz
2529		valid_dot_shape(none).
2530		valid_dot_shape(note). % requires newer version of graphviz
2531		valid_dot_shape(octagon).
2532		valid_dot_shape(oval).
2533		valid_dot_shape(parallelogram).
2534		valid_dot_shape(pentagon).
2535		valid_dot_shape(plain).
2536		valid_dot_shape(plaintext).
2537		valid_dot_shape(point).
2538		valid_dot_shape(promoter). % requires newer version of graphviz
2539		valid_dot_shape(record).
2540		valid_dot_shape(rarrow). % requires newer version of graphviz
2541		valid_dot_shape(rect).
2542		valid_dot_shape(rectangle).
2543		valid_dot_shape(rpromoter). % requires newer version of graphviz
2544		valid_dot_shape(septagon).
2545		valid_dot_shape(square).
2546		valid_dot_shape(star). % requires newer version of graphviz
2547		valid_dot_shape(tab). % requires newer version of graphviz
2548		valid_dot_shape(trapezium).
2549		valid_dot_shape(triangle).
2550		valid_dot_shape(tripleoctagon).
2551
2552		:- use_module(library(lists),[maplist/2]).
2553		valid_rgb_color(X) :- tk_color(X).
2554		valid_rgb_color(X) :- % check for composed colors like chocolate3
2555		atom_codes(X,Codes), append(Prefix,[Digit],Codes),
2556		Digit >= 48, Digit =< 57, Nr is Digit - 48, atom_codes(ColorName,Prefix),
2557		tk_color(ColorName,Low,Up),
2558		Nr >= Low, Nr =< Up.
2559		valid_rgb_color(X) :- valid_gray(X).
2560		valid_rgb_color(X) :- atom(X),atom_codes(X,[35|HexCodes]),
2561		length(HexCodes,Len),
2562		(Len=6 ; Len=8), % with Alpha codes
2563	?	maplist(hex,HexCodes). % should be of the form #ff00ff, optionally with alpha value
2564
2565		% colors which also accept numbers at end:
2566		tk_color(aquamarine,1,4).
2567		tk_color(azure,1,4).
2568		tk_color(bisque,1,4).
2569		tk_color(blue,1,4).
2570		tk_color(brown,1,4).
2571		tk_color(burlywood,1,4).
2572		tk_color('CadetBlue',1,4).
2573		tk_color(chartreuse,1,4).
2574		tk_color(chocolate,1,4).
2575		tk_color(coral,1,4).
2576		tk_color(cornsilk,1,4).
2577		tk_color(cyan,1,4).
2578		tk_color(deepskyblue,1,4).
2579		tk_color('DarkGoldenrod',1,4).
2580		tk_color('DarkOliveGreen',1,4).
2581		tk_color('DarkOrange',1,4).
2582		tk_color('DarkSeaGreen',1,4).
2583		tk_color('DarkSlateGray',1,4).
2584		tk_color('DeepPink',1,4).
2585		tk_color('DeepSkyBlue',1,4).
2586		tk_color('DodgerBlue',1,4).
2587		tk_color(firebrick,1,4).
2588		tk_color(gold,1,4).
2589		tk_color(goldenrod,1,4).
2590		tk_color(gray,0,99).
2591		tk_color(green,1,4).
2592		tk_color(grey,0,99).
2593		tk_color(honeydew,1,4).
2594		tk_color('HotPink',1,4).
2595		tk_color(indianred,1,4).
2596		tk_color('IndianRed',1,4).
2597		tk_color(ivory,1,4).
2598		tk_color(khaki,1,4).
2599		tk_color('LavenderBlush',1,4).
2600		tk_color('LemonChiffon',1,4).
2601		tk_color('LightBlue',1,4).
2602		tk_color('LightCyan',1,4).
2603		tk_color('LightGoldenrod',1,4).
2604		tk_color('LightPink',1,4).
2605		tk_color('LightSalmon',1,4).
2606		tk_color('LightSkyBlue',1,4).
2607		tk_color('LightSteelBlue',1,4).
2608		tk_color('LightYellow',1,4).
2609		tk_color(magenta,1,4).
2610		tk_color(maroon,1,4).
2611		tk_color('MediumOrchid',1,4).
2612		tk_color('MediumPurple',1,4).
2613		tk_color('MistyRose',1,4).
2614		tk_color('NavajoWhite',1,4).
2615		tk_color(orchid,1,4).
2616		tk_color(orange,1,4).
2617		tk_color(olivedrab,1,4).
2618		tk_color('OliveDrab',1,4).
2619		tk_color('OrangeRed',1,4).
2620		tk_color(mistyrose,1,4).
2621		tk_color(peachpuff,1,4).
2622		tk_color(pink,1,4).
2623		tk_color(plum,1,4).
2624		tk_color(purple,1,4).
2625		tk_color('PaleGreen',1,4).
2626		tk_color('PaleTurquoise',1,4).
2627		tk_color('PaleVioletRed',1,4).
2628		tk_color('PeachPuff',1,4).
2629		tk_color(red,1,4).
2630		tk_color(royalblue,1,4).
2631		tk_color('RosyBrown',1,4).
2632		tk_color('RoyalBlue',1,4).
2633		tk_color(salmon,1,4).
2634		tk_color(seagreen,1,4).
2635		tk_color(seashell,1,4).
2636		tk_color(sienna,1,4).
2637		tk_color(skyblue,1,4).
2638		tk_color(snow,1,4).
2639		tk_color(springgreen,1,4).
2640		tk_color(steelblue,1,4).
2641		tk_color('SeaGreen',1,4).
2642		tk_color('SkyBlue',1,4).
2643		tk_color('SlateBlue',1,4).
2644		tk_color('SlateGray',1,4).
2645		tk_color('SpringGreen',1,4).
2646		tk_color('SteelBlue',1,4).
2647		tk_color(tan,1,4).
2648		tk_color(thistle,1,4).
2649		tk_color(tomato,1,4).
2650		tk_color(turquoise,1,4).
2651		tk_color('VioletRed',1,4).
2652		tk_color(wheat,1,4).
2653		tk_color(yellow,1,4).
2654
2655
2656		tk_color(X) :- tk_color(X,_,_).
2657		tk_color('AliceBlue').
2658		tk_color(beige).
2659		tk_color(black).
2660		tk_color('BlanchedAlmond').
2661		tk_color('BlueViolet').
2662		tk_color(darkblue).
2663		tk_color(darkgray). % this is not a valid X11 color; but it is recognised by Tk (but not by sfdp)
2664		tk_color(darkgreen).
2665		tk_color(darkorange).
2666		tk_color(darkorchid).
2667		tk_color(darkred).
2668		tk_color(darkslateblue).
2669		tk_color(darkviolet).
2670		tk_color('DarkBlue').
2671		tk_color('DarkCyan').
2672		tk_color('DarkGray').
2673		tk_color('DarkGreen').
2674		tk_color('DarkGrey').
2675		tk_color('DarkKhaki').
2676		tk_color('DarkMagenta').
2677		tk_color('DarkRed').
2678		tk_color('DarkSalmon').
2679		tk_color('DarkSlateBlue').
2680		tk_color('DarkTurquoise').
2681		tk_color('DarkViolet').
2682		tk_color('DimGray').
2683		tk_color('DimGrey').
2684		tk_color('FloralWhite').
2685		tk_color('ForestGreen').
2686		tk_color(lightblue).
2687		tk_color(lightgray).
2688		tk_color('LawnGreen').
2689		tk_color('LightCoral').
2690		tk_color('LightGray').
2691		tk_color('LightGreen').
2692		tk_color('LightGrey').
2693		tk_color('LightSeaGreen').
2694		tk_color('LimeGreen').
2695		tk_color(moccasin).
2696		tk_color('MediumAquamarine').
2697		tk_color('MediumBlue').
2698		tk_color('MediumSeaGreen').
2699		tk_color('MediumSlateBlue').
2700		tk_color('MediumSpringGreen').
2701		tk_color('MediumTurquoise').
2702		tk_color('MediumVioletRed').
2703		tk_color('MidnightBlue').
2704		tk_color('MintCream').
2705		tk_color(navy).
2706		tk_color('NavyBlue').
2707		tk_color('OldLace').
2708		tk_color('PapayaWhip').
2709		tk_color('PowderBlue').
2710		tk_color(slateblue).
2711		tk_color(steelblue).
2712		tk_color('SaddleBrown').
2713		tk_color('SandyBrown').
2714		tk_color(violet).
2715		tk_color(white).
2716		tk_color('WhiteSmoke').
2717		tk_color('YellowGreen').
2718
2719		valid_gray(G) :- atom(G), atom_concat('gray',NAtom,G), atom_codes(NAtom,[N1|T]), digit(N1),
2720		(T=[] -> true ; T=[N2],digit(N2)).
2721		digit(N) :- N >47, N<58.
2722
2723
2724		hex(X) :- atomic(X), number(X), ((X<103,X>96) ; (X<71,X>64) ; (X>47,X<58)).
2725
2726		:- use_module(library(file_systems)).
2727		check_file_exists(X) :- file_exists(X) -> true ; add_message(preferences,'Warning file for preference does not exist: ',X).
2728		check_directory_exists(X) :-
2729		directory_exists(X) -> true ; add_message(preferences,'Warning directory for preference does not exist: ',X).
2730		:- public check_path_exists/1.
2731		check_path_exists(X) :- (file_exists(X) -> true
2732		; directory_exists(X) -> true
2733		; add_message(preferences,'Warning path for preference does not exist: ',X)).
2734
2735		:- dynamic temp_pref/3.
2736		% use to temporarily set preferences;
2737		% changes can be undone with reset_temporary_preference
2738		% change will not be saved if reset_temporary_preference not called (e.g., due to bug/timeout/Ctrl-C)
2739		temporary_set_preference(Pref,Val) :- temporary_set_preference(Pref,Val,_).
2740		temporary_set_preference(Pref,Val,ChangeOccured) :- get_preference(Pref,OldVal),!,
2741		(OldVal=Val -> ChangeOccured=false
2742		; set_preference_direct(Pref,Val,_), ChangeOccured = true,
2743		asserta(temp_pref(Pref,OldVal,Val))
2744		%,debug:debug_println(9,temp_set_pref(Pref,Val))
2745		).
2746		% Note: assertz(p(1)), assertz(p(2)), retract(p(X)), retract(p(Y)) -> X=1, Y=2
2747		% Note: asserta(p(1)), asserta(p(2)), retract(p(X)), retract(p(Y)) -> X=2, Y=1
2748
2749		reset_temporary_preference(P) :- reset_temporary_preference(P,_).
2750		reset_temporary_preference(_,ChangeOccured) :- ChangeOccured==false,!. % nothing to do
2751		reset_temporary_preference(Pref,_) :-
2752		(retract(temp_pref(Pref,OldVal,_NewVal))
2753		-> set_preference_direct(Pref,OldVal,_)
2754		; true).
2755
2756	?	reset_all_temporary_preferences :- retract(temp_pref(Pref,OldVal,_)),set_preference(Pref,OldVal),fail.
2757		reset_all_temporary_preferences.
2758
2759		% this set_preference does not update change flag and performs no preference_update_action
2760		set_preference_direct(Pref,Val,_) :- var(Pref),!,
2761		print_error('Variable as preference not allowed'),
2762		print_error(set_preference(Pref,Val)),
2763		fail.
2764		set_preference_direct(Pref,Val,OldVal) :- read_only_preference(Pref),!,
2765		print_error('Preference is read-only'),
2766		print_error(set_preference(Pref,Val)),
2767		% do not fail, the Rodin plugin calls this when switching workspaces
2768		preference(Pref,OldVal).
2769		set_preference_direct(Pref,Val,OldVal) :-
2770		% format(user_output,'~nset_preference ~w to ~w (~w)~n~n',[Pref,Val,OldVal]),
2771		(preference_val_type(Pref,Type)
2772	?	-> (is_of_type(Val,Type)
2773		-> NewVal=Val
2774		; convert_pref(Val,Type,NewVal), is_of_type(NewVal,Type)
2775		-> true
2776		; format_error_with_nl('New preference value for ~w of incorrect type (expected ~w): ~w',[Pref,Type,Val]),
2777		%Val =.. L, print_error(val(L)),
2778		print_error('No changes performed!'),
2779		fail
2780		)
2781		; obsolete_preference(Pref) -> print_error('Obsolete preference'), print_error(Pref)
2782		; print_error('Do not know type of preference'), print_error(Pref)
2783		),
2784		(retract(preference(Pref,OLD)) -> OldVal=OLD ; OldVal = '$none'),
2785		assertz(preference(Pref,NewVal)),
2786		(OldVal=NewVal -> true
2787		; preference_update_action(Pref,NewVal) -> true).
2788
2789		% in case the preferences are set by user using upper-case TRUE and FALSE
2790		convert_pref('TRUE',T,true) :- bool_type(T).
2791		convert_pref('FALSE',T,false) :- bool_type(T).
2792		convert_pref('FULL',xbool,full).
2793		convert_pref('DEFAULT',dbool,default).
2794		bool_type(bool).
2795		bool_type(dbool).
2796		bool_type(xbool).
2797		bool_type(axbool).
2798
2799		set_preference(Pref,Val) :-
2800		set_preference_direct(Pref,Val,OldVal),
2801		retractall(temp_pref(Pref,_,_)), % user has overriden temporary choice
2802		(OldVal=Val -> true ; assert_change_flag).
2803
2804
2805
2806		tcltk_get_preference(Pref,Val) :- /* same as get_preference, but convert non-atomic into atoms */
2807		get_preference(Pref,V),
2808		(atomic(V) -> Val=V
2809		; translate_term_into_atom(V,Val)
2810		).
2811
2812		get_preference(Pref,Val) :-
2813		(preference(Pref,V)
2814		-> Val=V
2815		; (preference_default_value(Pref,V)
2816		-> Val=V
2817		; (obsolete_preference(Pref)
2818		-> print_error('Obsolete preference in get_preference:')
2819		; print_error('Invalid preference in get_preference:')
2820		),
2821		print_error(Pref),
2822		Val = 0
2823		)
2824		).
2825
2826		% --------------
2827
2828		% rules for computed/derived preferences:
2829		get_computed_preference(debug_time_out,Res) :-
2830		preference(debug_time_out_factor,TFactor), !,
2831		get_time_out_preference_with_factor(TFactor,Res).
2832		get_computed_preference(convert_closures_into_explicit_form_for_store,Value) :-
2833		preference(convert_comprehension_sets_into_closures,SymbolicV),!,
2834		(SymbolicV=true -> Value=false ; Value=true).
2835		get_computed_preference(X,_) :- print_error('Invalid Preference in get_computed_preference:'),
2836		print_error(X).
2837
2838
2839
2840		% --------------
2841
2842		get_time_out_preference_with_factor(TFactor,Res) :-
2843		preference(time_out,CurTO),
2844		(disabled_time_out(CurTO)
2845		-> disabled_time_out(Res) % keep disabled_time_out value
2846		; DTimeOut is round(CurTO * TFactor),
2847		prune_time_out_preference(DTimeOut,Res)).
2848		add_time_outs(TO1,TO2,ResTO) :-
2849		(disabled_time_out(TO1) -> ResTO=TO1
2850		; disabled_time_out(TO2) -> ResTO=TO2
2851		; ResTO is integer(TO1)+integer(TO2)
2852		).
2853
2854		% value of 2147483646 means time-out was disabled, 600 hours; should we move to 64 bits ?
2855		disabled_time_out(2147483646). % cf no_time_out_value in tools_meta
2856		prune_time_out_preference(X,Res) :- (X>= 2147483646 -> disabled_time_out(Res) ; Res=X).
2857
2858		time_out_preference_disabled :- preference(time_out,2147483646).
2859
2860		cur_pref_string(Pref,String) :-
2861		preference_description(Pref,Desc),
2862		(eclipse_preference(ECLPREF,Pref) -> ajoin([ECLPREF,': ',Desc],String)
2863		; String=Desc). %string_concatenate(Desc,';',String)).
2864		/* preference(Pref,Val),
2865		string_concatenate(Val,';',V1),
2866		string_concatenate(' = ',V1,V2),
2867		string_concatenate(Desc,V2,String). */
2868
2869		/* useful predicates for Tcl/Tk listbox interaction: */
2870		get_preferences_list(List) :-
2871		findall(S,cur_pref_string(_,S),List).
2872		get_preferences_list(Category,list(List)) :-
2873		findall(S,(virtual_preference_category(Pref,Category),cur_pref_string(Pref,S)),List).
2874
2875		% add some virtual categories like eclipse
2876		virtual_preference_category(Pref,Category) :- Category==eclipse,!,
2877		findall(e(E,P),(eclipse_preference(E,P), \+ preference_category(P,hidden)),List),
2878		sort(List,SList),
2879		member(e(_,Pref),SList).
2880		virtual_preference_category(Pref,Category) :- preference_description(Pref,_Desc), preference_category(Pref,Category).
2881		virtual_preference_category(Pref,Category) :- preference_description(Pref,_Desc),
2882		alternate_preference_category(Pref,Category).
2883
2884
2885		get_ith_preference_type(Pos,Type) :- get_ith_preference_type(_,Pos,Type).
2886		get_ith_preference_type(Category,Pos,Type) :-
2887		findall(S, (virtual_preference_category(Pref,Category),
2888		preference_val_type(Pref,S)), List),
2889		(nth1(Pos,List,FType) -> Type=FType
2890		; (add_error(get_ith_preference_type,'Could not find preference: ',nth1(Pos,List)),fail)).
2891
2892		get_ith_preference_value(Pos,Val) :- get_ith_preference_value(_,Pos,Val).
2893		get_ith_preference_value(Category,Pos,Val) :-
2894		findall(S, (virtual_preference_category(Pref,Category),
2895		tcltk_get_preference(Pref,S)), List),
2896		(nth1(Pos,List,FVal) -> Val=FVal
2897		; (add_error(get_ith_preference_value,'Could not find preference: ',nth1(Pos,List)),fail)).
2898
2899		set_ith_preference_value(Pos,Val) :- set_ith_preference_value(_,Pos,Val).
2900		set_ith_preference_value(Category,Pos,Val) :-
2901		findall(S, virtual_preference_category(S,Category), List),
2902		(nth1(Pos,List,Pref) -> set_preference(Pref,Val)
2903		; add_error(set_ith_preference_value,'Could not find preference: ',nth1(Pos,List)),fail).
2904
2905
2906		% a version of get_preference that will also generate warnings
2907		get_preference_with_warnings(Pref,Value) :- gen_preference_warnings(Pref),
2908		get_preference(Pref,Value).
2909
2910		% get detailed warnings about a preference value
2911		gen_preference_warnings(Pref) :-
2912		preference(Pref,Value),
2913		preference_val_type(Pref,T),
2914		\+ is_of_type(Value,T),
2915		ajoin(['The value of the preference ',Pref,' does not have the correct type:'],Msg),
2916		add_warning(preferences,Msg,T),
2917		fail.
2918		gen_preference_warnings(Pref) :-
2919		preference_val_type(Pref,path),
2920		preference(Pref,Value),
2921		get_modulename_filename(Value,Module),
2922		invalid_application(Pref,Module),
2923		ajoin(['The path chosen for preference ',Pref,' seems to point to a wrong program:'],Msg),
2924		add_warning(preferences,Msg,Module),
2925		fail.
2926		gen_preference_warnings(_).
2927		% TODO: check e.g. that OPERATION_REUSE is not used in XTL mode,...
2928
2929		invalid_application(path_to_dotty,dot).
2930		invalid_application(path_to_dot,dotty).
2931
2932		/* ------------------------- */
2933
2934		:- dynamic nr_of_recent_documents/1.
2935		:- dynamic recent_documents/1.
2936		nr_of_recent_documents(0).
2937
2938		recompute_nr_of_recent_documents :-
2939		retractall(nr_of_recent_documents(_)),
2940		findall(X,recent_documents(X),List),
2941		length(List,Nr),
2942		assertz(nr_of_recent_documents(Nr)).
2943
2944
2945		:- dynamic add_recent_documents_active/0.
2946		add_recent_documents_active.
2947
2948		activate_recent_documents :- (add_recent_documents_active -> true ; assertz(add_recent_documents_active)).
2949
2950		deactivate_recent_documents :- retractall(add_recent_documents_active).
2951
2952		/* use to add a file to recent documents list */
2953		add_recent_document(_) :- \+ add_recent_documents_active, !.
2954		add_recent_document(Document) :-
2955		(retract(nr_of_recent_documents(Nr)) -> true ; Nr=0),
2956		(retract(recent_documents(Document))
2957		-> N1 =Nr ; N1 is Nr+1
2958		),
2959		(preference(number_of_recent_documents,Max) -> true ; Max=25),
2960		(N1>Max -> (retract(recent_documents(_)),assertz(nr_of_recent_documents(Nr)))
2961		; assertz(nr_of_recent_documents(N1))),
2962		assertz(recent_documents(Document)),
2963		assert_change_flag.
2964
2965		get_recent_documents(list(Res)) :-
2966		findall(X,recent_documents(X),List),
2967		reverse(List,Res).
2968
2969		clear_recent_documents :-
2970		retractall(recent_documents(_)),
2971		retractall(nr_of_recent_documents(_)),
2972		assertz(nr_of_recent_documents(0)).
2973
2974
2975		/* use to add a string to the searched patterns list */
2976		:- dynamic searched_patterns/1.
2977		:- dynamic replaced_patterns/1.
2978		:- dynamic eval_history_elements/1.
2979		:- dynamic eval_csp_history_elements/1.
2980		:- dynamic checked_ltl_formulas/1.
2981
2982
2983		add_element_to_history(Predicate,Pattern,MaxNumb) :-
2984		merge_prefix_with_suffix(number_of_,Predicate,Name),
2985		get_predicate_term_with_single_argument(Name,Nr,TermNum),
2986		(retract(TermNum) -> true ; Nr=0),
2987		get_predicate_term_with_single_argument(Predicate,Pattern,Term),
2988		(retract(Term) -> N1=Nr ; N1 is Nr+1),
2989		(preference(TermNum,Max) -> true ; Max=MaxNumb),
2990		get_predicate_term_with_single_argument(Predicate,_,Term1),
2991		(N1>Max -> (retract(Term1),assertz(TermNum))
2992		; get_predicate_term_with_single_argument(Name,N1,TermNum1),
2993		assertz(TermNum1)),assertz(Term),
2994		assert_change_flag.
2995
2996		% this will be used with checked_ltl_formulas, ... from tcltk_gui.tcl
2997		:- public searched_patterns/1, replaced_patterns/1, eval_history_elements/1, eval_csp_history_elements/1, checked_ltl_formulas/1.
2998		get_history_elements_list(Predicate,Reversed,list(Res)) :-
2999		get_predicate_term_with_single_argument(Predicate,X,Term),
3000		findall(X,Term,List),
3001		(Reversed=true -> reverse(List,Res); Res=List).
3002
3003
3004
3005		/* not used
3006		:- dynamic number_of_checked_ltl_formulas/1.
3007		number_of_checked_ltl_formulas(0).
3008		recompute_nr_of_checked_ltl_formulas :-
3009		retractall(number_of_checked_ltl_formulas(_)),
3010		findall(F,checked_ltl_formulas(F),List),
3011		length(List,Nr),assertz(number_of_checked_ltl_formulas(Nr)). */
3012
3013		merge_prefix_with_suffix(Prefix,Ending,Name) :-
3014		atom_codes(Prefix,Pr),atom_codes(Ending,End),
3015		append(Pr,End,CodeName),atom_codes(Name,CodeName).
3016
3017		get_predicate_term_with_single_argument(Name,Arg,Term) :-
3018		functor(Term,Name,1),arg(1,Term,Arg).
3019
3020
3021		/* ------------------------- */
3022
3023		:- dynamic prob_application_type/1.
3024		prob_application_type(unknown).
3025
3026		get_prob_application_type(X) :- prob_application_type(X).
3027		set_prob_application_type(X) :- retractall(prob_application_type(_)), assertz(prob_application_type(X)).
3028		% can be tcltk, probcli, prob2, rodin, ...
3029		% TODO: call set_prob_application_type(prob2) via some flag when starting from ProB2/ProB2-UI
3030
3031		/* ------------------------- */
3032
3033		% used by -pref_group Group procli command
3034		set_preference_group(Group,_) :- \+ preference_group_description(Group,_),!,
3035		add_error(set_preference_mode,'Preference mode does not exist: ',Group).
3036		set_preference_group(Group,default) :-
3037		preference_group_val(Group,Scheme,_,_),!, % pick one scheme and reset all values of that scheme to default
3038		( preference_group_val(Group,Scheme,Pref,_),preference_default_value(Pref,Val),
3039		set_preference(Pref,Val),fail
3040		; true).
3041		set_preference_group(Group,Scheme) :- \+ preference_group_val(Group,Scheme,_,_),!,
3042		add_error(set_preference_mode,'Preference scheme does not exist: ',Group:Scheme).
3043		set_preference_group(Group,Scheme) :- preference_group_val(Group,Scheme,Pref,Val),
3044		set_preference(Pref,Val),fail.
3045		set_preference_group(_,_).
3046
3047
3048		preference_group_description(integer,'Values for MAXINT and MININT').
3049		preference_group_description(time_out,'To disable TIME_OUT').
3050		preference_group_description(model_check,'Model Checking Limits').
3051		preference_group_description(dot_colors,'Colours for Dot graphs').
3052		preference_group_description(sh_colors,'Colours for Syntax Highlighting').
3053
3054		preference_group_val(integer,int64,maxint, 9223372036854775807). % 2**63-1
3055		preference_group_val(integer,int64,minint,-9223372036854775808). %-2**63
3056		preference_group_val(integer,int32,maxint,2147483647). % 2**31-1
3057		preference_group_val(integer,int32,minint,-2147483648). %-2**31
3058		preference_group_val(integer,int8,maxint,127).
3059		preference_group_val(integer,int8,minint,-128).
3060
3061		preference_group_val(time_out,disable_time_out,time_out,TO) :- disabled_time_out(TO). % this value turns time_out off, e.g., in safe_time_out
3062
3063		preference_group_val(model_check,unlimited,time_out,TO) :- disabled_time_out(TO). % this value turns time_out off
3064		preference_group_val(model_check,unlimited,maxNrOfInitialisations,Max) :- current_prolog_flag(max_tagged_integer,Max).
3065		preference_group_val(model_check,unlimited,maxNrOfEnablingsPerOperation,Max) :- current_prolog_flag(max_tagged_integer,Max).
3066		preference_group_val(model_check,disable_max,maxNrOfInitialisations,Max) :- current_prolog_flag(max_tagged_integer,Max).
3067		preference_group_val(model_check,disable_max,maxNrOfEnablingsPerOperation,Max) :- current_prolog_flag(max_tagged_integer,Max).
3068
3069		preference_group_val(dot_colors,classic,dot_normal_node_colour, olivedrab2).
3070		preference_group_val(dot_colors,classic,dot_normal_arc_colour,steelblue).
3071		preference_group_val(dot_colors,classic,dot_open_node_colour,red).
3072		preference_group_val(dot_colors,classic,dot_goal_node_colour,orange).
3073		preference_group_val(dot_colors,classic,dot_invariant_violated_node_colour,maroon2).
3074		preference_group_val(dot_colors,classic,dot_counterexample_node_colour,brown).
3075		preference_group_val(dot_colors,classic,dot_counterexample_op_colour,brown).
3076
3077		preference_group_val(dot_colors,winter,dot_normal_node_colour, '#425955').
3078		preference_group_val(dot_colors,winter,dot_normal_arc_colour,'#1B1D26').
3079		preference_group_val(dot_colors,winter,dot_open_node_colour,'#BFBD9F').
3080		preference_group_val(dot_colors,winter,dot_goal_node_colour,'#CC8604').
3081		preference_group_val(dot_colors,winter,dot_invariant_violated_node_colour,'#9C080C').
3082
3083		preference_group_val(dot_colors,dreams,dot_normal_node_colour, '#5D7359').
3084		preference_group_val(dot_colors,dreams,dot_invariant_violated_node_colour,'#661C0E').
3085		preference_group_val(dot_colors,dreams,dot_normal_arc_colour,'#8C5430').
3086		preference_group_val(dot_colors,dreams,dot_open_node_colour,'#D6AA5C').
3087		preference_group_val(dot_colors,dreams,dot_goal_node_colour,'#FFC800').
3088
3089		preference_group_val(dot_colors,solarized,dot_normal_node_colour, '#859900').
3090		preference_group_val(dot_colors,solarized,dot_normal_arc_colour,'#268bd2').
3091		preference_group_val(dot_colors,solarized,dot_open_node_colour,'#dc322f').
3092		preference_group_val(dot_colors,solarized,dot_goal_node_colour,'#cb4b16').
3093		preference_group_val(dot_colors,solarized,dot_invariant_violated_node_colour,'#dc322f').
3094		preference_group_val(dot_colors,solarized,dot_counterexample_node_colour,'#dc322f').
3095		preference_group_val(dot_colors,solarized,dot_counterexample_op_colour,'#d33682').
3096
3097
3098		preference_group_val(sh_colors,solarized,sh_type_colour,'#dc322f'). % $red
3099		preference_group_val(sh_colors,solarized,sh_logical_colour,'#cb4b16'). % $orange
3100		preference_group_val(sh_colors,solarized,sh_assignments_colour,'#268bd2'). % $blue
3101		preference_group_val(sh_colors,solarized,sh_operators,'#2aa198'). % $cyan
3102		preference_group_val(sh_colors,solarized,sh_top_level_keywords,'#6c71c4'). % $violet
3103		preference_group_val(sh_colors,solarized,sh_control_keywords,'#d33682'). % $magenta
3104		preference_group_val(sh_colors,solarized,sh_comments,'#93a1a1'). % $base1
3105		preference_group_val(sh_colors,solarized,sh_pragmas,'#859900'). % $green
3106		preference_group_val(sh_colors,solarized,sh_unsupported_background,'#b58900'). % $yellow
3107
3108		:- use_module(eventhandling,[register_event_listener/3]).
3109		:- register_event_listener(startup_prob,init_preferences,
3110		'Initialise Preferences').
3111		:- register_event_listener(clear_specification,reset_all_temporary_preferences,
3112		'Reset Temporary Preferences.').
3113		:- register_event_listener(start_unit_tests,(backup_preferences,
3114		set_preference(minint,-1),
3115		set_preference(maxint,3),
3116		set_preference(translate_print_all_sequences,false),
3117		set_preference(translate_print_cs_style_sequences,false)
3118		),
3119		'Setting up Preferences for Unit Tests').
3120		:- register_event_listener(stop_unit_tests, revert_preferences, 'Reverting Preferences').
3121		:- register_event_listener(reset_prob,(reset_all_temporary_preferences, reset_to_defaults),
3122		'Reset Preferences just like after starup_prob').