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). % nr of refinement levels above animated
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('HYGIENIC_DEFINITIONS',use_hygienic_definitions).
348		advanced_eclipse_preference('WARN_IF_DEFINITION_HIDES_VARIABLE',warn_if_definition_hides_variable).
349		advanced_eclipse_preference('TYPE_CHECK_DEFINITIONS',type_check_definitions).
350		advanced_eclipse_preference('TRACE_INFO',provide_trace_information).
351		advanced_eclipse_preference('PROFILING_INFO',prob_profiling_on).
352		advanced_eclipse_preference('SOURCE_PROFILING_INFO',prob_source_profiling_on).
353		advanced_eclipse_preference('STORE_DETAILED_TRANSITION_INFOS',eventtrace). % Event Trace Info
354		advanced_eclipse_preference('PERFORMANCE_INFO',performance_monitoring_on).
355		advanced_eclipse_preference('PERFORMANCE_INFO_LIMIT',performance_monitoring_expansion_limit).
356		advanced_eclipse_preference('DOUBLE_EVALUATION',double_evaluation_when_analysing).
357		advanced_eclipse_preference('PROB_SAFE_MODE',prob_safe_mode).
358		%advanced_eclipse_preference('RECURSIVE',allow_recursive_closures).
359		advanced_eclipse_preference('IGNORE_HASH_COLLISIONS',ignore_hash_collisions).
360		advanced_eclipse_preference('USE_SCOPE_DEFINITION',use_scope_predicate).
361		advanced_eclipse_preference('FORGET_STATE_SPACE',forget_state_space).
362		advanced_eclipse_preference('SAFETY_MODEL_CHECK',store_only_one_incoming_transition). % is actually INVARIANT_MC
363		advanced_eclipse_preference('LTL_SAFETY_MODEL_CHECK',use_safety_ltl_model_checker).
364		%advanced_eclipse_preference('LARGE_PARSER_JVM',use_large_jvm_for_parser).
365		advanced_eclipse_preference('JVM_PARSER_HEAP_MB',jvm_parser_heap_size_mb). % TO DO: do not show in ProB2-UI
366		advanced_eclipse_preference('JVM_PARSER_ARGS',jvm_parser_additional_args).
367		advanced_eclipse_preference('JVM_PARSER_POSITION_INFOS',jvm_parser_position_infos).
368		%advanced_eclipse_preference('JVM_PARSER_FASTRW',jvm_parser_fastrw).
369		advanced_eclipse_preference('CSP_STRIP_SOURCE_LOC',cspm_strip_source_location).
370		advanced_eclipse_preference('INVARIANT_CHECKING',do_invariant_checking).
371		advanced_eclipse_preference('ASSERT_CHECKING',do_assert_checking).
372		%advanced_eclipse_preference('NEGATED_INVARIANT_CHECKING',do_neginvariant_checking). % use double_evaluation_when_analysing
373		advanced_eclipse_preference('ALLOW_SIMULTANEOUS_ASSIGNMENTS',allow_simultaneous_assignments).
374		advanced_eclipse_preference('ALLOW_REALS',allow_arith_operators_on_reals).
375		advanced_eclipse_preference('REAL_SOLVER',solver_for_reals).
376		advanced_eclipse_preference('BUGLY',bugly_pp_scrambling). % B Ugly
377		advanced_eclipse_preference('ATELIERB_KRT_PATH',path_to_atb_krt).
378		advanced_eclipse_preference('JAVA_PATH',path_to_java).
379		advanced_eclipse_preference('JAVA_PARSER_PATH',path_to_java_parser).
380		advanced_eclipse_preference('TRY_ATELIERB_PROVERS',try_atb_provers).
381		advanced_eclipse_preference('SMTLIB_BOOL_ARRAYS_TO_SETS',smtlib2b_arrays_as_sets).
382		advanced_eclipse_preference('SMTLIB_PREPROCESS',smtlib2b_cleanup_predicate).
383		advanced_eclipse_preference('SYMBOLIC_MC_TRY_OTHER_SOLVERS',symbolic_mc_try_other_solvers).
384		advanced_eclipse_preference('SMT_SUPPORTED_INTERPRETER',smt_supported_interpreter).
385		advanced_eclipse_preference('SAT_SUPPORTED_INTERPRETER',sat_supported_interpreter).
386		advanced_eclipse_preference('PP_FROZEN_INFOS',translate_print_frozen_infos).
387		advanced_eclipse_preference('PP_SEQUENCES',translate_print_all_sequences).
388		advanced_eclipse_preference('PP_CS_STYLE_SEQUENCES',translate_print_cs_style_sequences).
389		advanced_eclipse_preference('STRING_AS_SEQUENCE',allow_sequence_operators_on_strings).
390		advanced_eclipse_preference('COMPILE_WHILE',compile_while_body).
391		advanced_eclipse_preference('EXPAND_BECOMES_SUCH',expand_becomes_such_into_set).
392		advanced_eclipse_preference('WARN_ABOUT_FAILING_ASSIGNMENTS',warn_about_failing_assignments).
393		%advanced_eclipse_preference('PGE',pge).
394
395
396		advanced_eclipse_preference('DOT_PROP',dot_print_node_properties).
397		advanced_eclipse_preference('DOT_IDS',dot_print_node_ids).
398		advanced_eclipse_preference('DOT_TRANS_IDS',dot_print_transition_ids).
399		advanced_eclipse_preference('DOT_INFO',dot_print_node_info).
400		advanced_eclipse_preference('DOT_LOOPS',dot_print_self_loops).
401		advanced_eclipse_preference('DOT_ARC_COLORS',dot_print_arc_colors).
402		advanced_eclipse_preference('DOT_FUNCTIONS',dot_print_functions).
403		advanced_eclipse_preference('DOT_ROOT',dot_print_root).
404		%advanced_eclipse_preference('DOT_LEAVES',dot_print_leaves).
405		advanced_eclipse_preference('DOT_EDGE_LABELS',dot_print_edge_labels).
406		advanced_eclipse_preference('DOT_ARGUMENTS',dot_print_action_arguments).
407		advanced_eclipse_preference('DOT_COLOR_ARC',dot_normal_arc_colour).
408		advanced_eclipse_preference('DOT_COLOR_NODE',dot_normal_node_colour).
409		advanced_eclipse_preference('DOT_COLOR_NODE_ERROR',dot_invariant_violated_node_colour).
410		advanced_eclipse_preference('DOT_COLOR_NODE_OPEN',dot_open_node_colour).
411		advanced_eclipse_preference('DOT_COLOR_NODE_GOAL',dot_goal_node_colour).
412		advanced_eclipse_preference('DOT_PEN_WIDTH',dot_node_penwidth).
413		advanced_eclipse_preference('DOT_EDGE_PEN_WIDTH',dot_edge_penwidth).
414		advanced_eclipse_preference('DOT_SHOW_OP_READ_WRITES',dot_enabling_show_readwrites).
415		advanced_eclipse_preference('DOT',path_to_dot).
416		advanced_eclipse_preference('DOT_ENGINE',dot_default_engine).
417		advanced_eclipse_preference('DOT_DECOMPOSE_NODES',dot_state_graph_decompose).
418
419		advanced_eclipse_preference('SUCCESSFUL_RULE_COLOUR',successful_rule_colour).
420		advanced_eclipse_preference('FAILED_RULE_COLOUR',failed_rule_colour).
421		advanced_eclipse_preference('DISABLED_RULE_COLOUR',disabled_rule_colour).
422		advanced_eclipse_preference('NOT_CHECKED_RULE_COLOUR',not_checked_rule_colour).
423		advanced_eclipse_preference('RULE_GRAPH_SHAPE',rule_graph_shape).
424		advanced_eclipse_preference('EXECUTED_COMPUTATION_COLOUR',executed_computation_colour).
425		advanced_eclipse_preference('NOT_EXECUTED_COMPUTATION_COLOUR',not_executed_computation_colour).
426		advanced_eclipse_preference('DISABLED_COMPUTATION_COLOUR',disabled_computation_colour).
427		advanced_eclipse_preference('COMPUTATION_GRAPH_SHAPE',computation_graph_shape).
428		advanced_eclipse_preference('SUCCEEDED_DEPENDENCY_COLOUR',succeeded_dependency_colour).
429		advanced_eclipse_preference('FAILED_DEPENDENCY_COLOUR',failed_dependency_colour).
430		advanced_eclipse_preference('NORMAL_DEPENDENCY_COLOUR',normal_dependency_colour).
431
432
433		advanced_eclipse_preference('TK_CUSTOM_STATE_VIEW_PADDING',tk_custom_state_viewer_padding).
434		advanced_eclipse_preference('TK_CUSTOM_STATE_VIEW_STRING_PADDING',tk_custom_state_viewer_str_padding).
435		advanced_eclipse_preference('TK_CUSTOM_STATE_VIEW_FONT_NAME',tk_custom_state_viewer_font_name).
436		advanced_eclipse_preference('TK_CUSTOM_STATE_VIEW_FONT_SIZE',tk_custom_state_viewer_font_size).
437		advanced_eclipse_preference('TK_CUSTOM_STATE_VIEW_VISIBLE',use_tk_custom_state_viewer).
438
439		%advanced_eclipse_preference('BOOL_AS_PREDICATE',bool_expression_as_predicate). % obsolete
440		advanced_eclipse_preference('ALLOW_UNTYPED_IDENTIFIERS',allow_untyped_identifiers).
441		advanced_eclipse_preference('ALLOW_LOCAL_OPERATION_CALLS',allow_local_operation_calls).
442		advanced_eclipse_preference('ALLOW_OPERATION_CALLS_IN_EXPRESSIONS',allow_operation_calls_in_expr).
443		advanced_eclipse_preference('ALLOW_COMPLEX_LETS',allow_let_to_reuse_introduced_ids).
444		advanced_eclipse_preference('REQUIRE_OUTPUT_ASSIGNMENT',require_operations_to_assign_all_outputs).
445		advanced_eclipse_preference('ALLOW_OUTPUT_READING',allow_operations_to_read_outputs).
446		advanced_eclipse_preference('ALLOW_OPERATION_CALLS_FOR_USES',allow_operation_calls_for_uses).
447		advanced_eclipse_preference('ALLOW_INITIALISATION_OVERRIDE',allow_overriding_initialisation).
448		advanced_eclipse_preference('REPL_UNICODE',repl_unicode).
449		advanced_eclipse_preference('REPL_CACHE_PARSING',repl_cache_parsing).
450		advanced_eclipse_preference('CACHE_CONSTANTS',cache_constants).
451		advanced_eclipse_preference('CACHE_OPERATIONS',cache_operations).
452		advanced_eclipse_preference('CACHE_OPERATIONS_RUNTIME_LIMIT',cache_operations_runtime_limit).
453		advanced_eclipse_preference('LATEX_ENCODING',latex_encoding).
454		advanced_eclipse_preference('LATEX_GREEK_IDENTIFIERS',latex_pp_greek_ids).
455		advanced_eclipse_preference('XML_ENCODING',xml_encoding).
456		advanced_eclipse_preference('BBRESULTS',view_probcli_errors_using_bbresults).
457		advanced_eclipse_preference('IGNORE_PRJ_TYPES',ignore_prj_types).
458		advanced_eclipse_preference('FILTER_UNUSED',filter_unused_constants).
459		advanced_eclipse_preference('DISPROVER_MODE',disprover_mode).
460		advanced_eclipse_preference('TRACE_UPON_ERROR',trace_upon_error).
461		advanced_eclipse_preference('NDJSON_ERROR_LOG_FILE',error_log_file).
462		advanced_eclipse_preference('STRICT_RAISE_WARNINGS',strict_raise_warnings).
463		advanced_eclipse_preference('STRICT_RAISE_ENUM_WARNINGS',strict_raise_enum_warnings).
464		advanced_eclipse_preference('STRICT_CLASH_CHECKING',clash_strict_checks).
465		%advanced_eclipse_preference('SHOW_FULL_ERROR_LOCATIONS',show_full_error_span).
466		advanced_eclipse_preference('EDITOR',path_to_text_editor_launch).
467		advanced_eclipse_preference('EDITOR_GUI',path_to_text_editor).
468		advanced_eclipse_preference('TLC_WORKERS',tlc_number_of_workers). % will be useful once we can call TLC from probcli (-mc_with_tlc)
469		advanced_eclipse_preference('TLC_USE_PROB_CONSTANTS',tlc_use_prob_constant_setup).
470		advanced_eclipse_preference('LTSMIN',path_to_ltsmin).
471
472		advanced_eclipse_preference('INTERNAL_ARGUMENT_PREFIX',prefix_internal_operation_arguments).
473		advanced_eclipse_preference('MINIMAL_TEST_SUITES',generate_minimal_nr_of_testcases).
474		advanced_eclipse_preference('ALLOW_NEW_OPERATIONS_IN_REFINEMENT',allow_new_ops_in_refinement).
475
476		advanced_eclipse_preference('ALLOY_USE_IMPLEMENTABLE_INTEGERS',alloy_use_implementable_integers).
477		advanced_eclipse_preference('ALLOY_SCOPELESS_TRANSLATION',alloy_scopeless_translation).
478		advanced_eclipse_preference('ALLOY_TRANSLATION_FOR_PROOF',alloy_translation_for_proof).
479		advanced_eclipse_preference('ALLOY_STRICT_INTEGERS',alloy_strict_integers).
480
481		advanced_eclipse_preference('SEQUENT_PROVER_RODIN_MODE',sequent_prover_rodin_mode).
482
483		advanced_eclipse_preference('DOT_EVENT_HIERARCHY_HORIZONTAL',dot_event_hierarchy_horizontal).
484		advanced_eclipse_preference('DOT_EVENT_HIERARCHY_MCH_COL',dot_event_hierarchy_machine_colour).
485		advanced_eclipse_preference('DOT_EVENT_HIERARCHY_REF_COL',dot_event_hierarchy_refines_colour).
486		advanced_eclipse_preference('DOT_EVENT_HIERARCHY_NEW_COL',dot_event_hierarchy_new_event_colour).
487		advanced_eclipse_preference('DOT_EVENT_HIERARCHY_RENAME_COL',dot_event_hierarchy_rename_event_colour).
488		advanced_eclipse_preference('DOT_EVENT_HIERARCHY_RENAME_UNCHG_COL',dot_event_hierarchy_rename_unchanged_event_colour).
489		advanced_eclipse_preference('DOT_EVENT_HIERARCHY_UNCHG_COL',dot_event_hierarchy_unchanged_event_colour).
490		advanced_eclipse_preference('DOT_EVENT_HIERARCHY_GRD_STRGTH_COL',dot_event_hierarchy_grd_strengthening_event_colour).
491		advanced_eclipse_preference('DOT_EVENT_HIERARCHY_GRD_KEEP_COL',dot_event_hierarchy_grd_keeping_event_colour).
492		advanced_eclipse_preference('DOT_EVENT_HIERARCHY_EDGE_COL',dot_event_hierarchy_edge_colour).
493		advanced_eclipse_preference('DOT_EVENT_HIERARCHY_EXTENDS_COL',dot_event_hierarchy_extends_colour).
494		advanced_eclipse_preference('DOT_HIERARCHY_EXTRA_DETAIL',dot_hierarchy_show_extra_detail).
495		advanced_eclipse_preference('DOT_USE_CONSTANTS',dot_print_use_constants).
496		advanced_eclipse_preference('DOT_ROOT_SHAPE',dot_root_shape).
497		advanced_eclipse_preference('DOT_NORMAL_NODE_SHAPE',dot_normal_node_shape).
498		advanced_eclipse_preference('DOT_CURRENT_NODE_SHAPE',dot_current_node_shape).
499		advanced_eclipse_preference('DOT_SCOPE_LIMIT_COL',dot_scope_limit_node_colour).
500		advanced_eclipse_preference('DOT_FILL_NORMAL_NODES',dot_fill_normal_nodes).
501		advanced_eclipse_preference('DOT_NODE_FONT_SIZE',dot_node_font_size).
502		advanced_eclipse_preference('DOT_EDGE_FONT_SIZE',dot_edge_font_size).
503		advanced_eclipse_preference('DOT_LIMIT_PAGE_SIZE',dot_with_page_size).
504		advanced_eclipse_preference('DOT_HORIZONTAL_LAYOUT',dot_horizontal_layout).
505		advanced_eclipse_preference('DOT_COLOUR_GOAL',dot_colour_goal_nodes).
506		advanced_eclipse_preference('DOT_DEFINITIONS_USE_SUB_GRAPH',dot_definitions_use_sub_graph).
507		advanced_eclipse_preference('DOT_DEFINITIONS_SHOW_ALL',dot_definitions_show_all).
508		advanced_eclipse_preference('DOT_PROJECTION_NON_DET_COL',dot_projection_non_det_edge_colour).
509		advanced_eclipse_preference('DOT_PROJECTION_DET_COL',dot_projection_det_edge_colour).
510		advanced_eclipse_preference('DOT_PROJECTION_NON_DEF_COL',dot_projection_non_definite_edge_style).
511		advanced_eclipse_preference('DOT_PROJECTION_DEF_COL',dot_projection_definite_edge_style).
512		advanced_eclipse_preference('DOT_PROJECTION_LABEL_LIMIT',dot_projection_label_limit).
513		advanced_eclipse_preference('DOT_PROJECTION_ONLY_EXPLORED_NODES',dot_projection_process_only_explored).
514		advanced_eclipse_preference('DOT_USE_UNICODE',dot_use_unicode).
515		advanced_eclipse_preference('DOT_PREDICATE_NODE_SHAPE',dot_predicate_node_shape).
516		advanced_eclipse_preference('DOT_EXPRESSION_NODE_SHAPE',dot_expression_node_shape).
517		advanced_eclipse_preference('DOT_VARIABLE_MODIFICATION_HIDE_ONLY_WRITTEN',dot_var_mod_hide_only_written).
518		advanced_eclipse_preference('DOT_MACHINE_HIERARCHY_MAX_IDS',dot_hierarchy_max_ids).
519		advanced_eclipse_preference('CBC_PROVIDE_EXPLANATIONS',cbc_provide_explanations).
520		advanced_eclipse_preference('CBC_ENABLE_ANALYSIS_TIME_OUT',timeout_cbc_analysis).
521		advanced_eclipse_preference('SYNTAX_HIGHLIGHT',do_syntax_highlighting).
522		advanced_eclipse_preference('WD_IGNORE_EXTERNAL',wd_ignore_external_funs).
523		advanced_eclipse_preference('WD_IGNORE_FINITE_POS',wd_skip_finite_pos).
524		advanced_eclipse_preference('WD_ANALYSIS_FOR_ANIMATION',wd_analysis_for_animation).
525		advanced_eclipse_preference('Z3_SOLVE_FOR_ANIMATION',z3_solve_for_animation).
526		advanced_eclipse_preference('ADD_WD_POS_FOR_Z3',add_wd_pos_for_z3).
527		%advanced_eclipse_preference('DO_NOT_PRINT_WD_ERRORS',do_not_print_wd_errors).
528		advanced_eclipse_preference('TABLE_COLUMN_LIMIT',translation_limit_for_table_commands).
529		advanced_eclipse_preference('MAX_TRACES',trace_generation_limit).
530		advanced_eclipse_preference('TRACES_TIME_OUT',trace_generation_time_out).
531
532		advanced_eclipse_preference('MC_DC_Level',mc_dc_default_level).
533		advanced_eclipse_preference('VISB_DEBUG_INFO',visb_show_debug_infos).
534
535		% obsolete
536		obsolete_eclipse_preference('EXPAND_CLOSURES_FOR_STATE').
537		obsolete_eclipse_preference('BOOL_AS_PREDICATE').
538		obsolete_eclipse_preference('BPARSER').
539		obsolete_eclipse_preference('DOT_LEAVES').
540		obsolete_eclipse_preference('PROB2_TRACE_FILE').
541		obsolete_eclipse_preference('PROB2_TRACE_FILE_UNIQUE').
542		obsolete_eclipse_preference('SFDP').
543		obsolete_eclipse_preference('SHOW_FULL_ERROR_LOCATIONS').
544		obsolete_eclipse_preference('WARN_WHEN_EXPANDING_INFINITE_CLOSURES').
545
546
547		deprecated_eclipse_preference('KODKOD',bool,use_solver_on_load,[true/kodkod,false/prob]). % try_kodkod_on_load
548
549
550
551		print_eclipse_prefs :- findall(X,eclipse_preference(X,_),Xs), sort(Xs,SXs),
552		length(SXs,Len),
553		format('VALUE and DESCRIPTION of ~w ProB PREFERENCES~n FORMAT:~n',[Len]),
554		format(' ~w = ~w~w : ~w ==> ~w~n',['PREFERENCE','CurrentValue','(*)','Type','Description']),
555		format(' * indicates current value does not correspond to default.~n',[]),
556		member(X,SXs),
557		eclipse_preference(X,P),
558		preference_val_type(P,VT),
559		preference_description(P,Desc),
560		preference(P,Val),
561		preference_default_value(P,Def),
562		(Def=Val -> Info = '' ; Info = ' *'),
563		format(' ~w = ~w~w : ~w ==> ~w~n',[X,Val,Info,VT,Desc]),
564		fail.
565		print_eclipse_prefs :-
566		format('DESCRIPTION of ProB PREFERENCE GROUPS:~n',[]),
567		preference_group_description(Group,Desc),
568		findall(Setting,preference_group_val(Group,Setting,_,_),S),
569		sort(S,Sorted),
570		format(' * PREFERENCE GROUP ~w : SETTINGS ~w : ~w~n',[Group,Sorted,Desc]),
571		fail.
572		print_eclipse_prefs.
573
574
575		:- dynamic preference/2.
576
577		% add clause in case init_preferences forgotten
578		preference(A,B) :- format(user_error,'Preferences not initalised (~w,~w)',[A,B]),
579		init_preferences,!, preference(A,B).
580		%add_internal_error('Preferences not initialised: ',preference(A,B)),fail.
581
582
583		% ------------------
584
585		preference_default_value(maxint,3). % 2147483647
586		preference_default_value(minint,-1). %-2147483648
587		preference_default_value(number_animated_abstractions, 20).
588		preference_default_value(number_skipped_refined_machines, 0).
589		preference_default_value(globalsets_fdrange,2).
590		preference_default_value(do_invariant_checking,true).
591		preference_default_value(do_assert_checking,true).
592		%preference_default_value(do_full_invariant_checking,true).
593		%preference_default_value(use_new_kernel,false).
594		preference_default_value(find_abort_values,false).
595		preference_default_value(raise_abort_immediately,false).
596		preference_default_value(treat_outermost_pre_as_select,true).
597		preference_default_value(require_operations_to_assign_all_outputs,false).
598		preference_default_value(allow_operations_to_read_outputs,false).
599		preference_default_value(allow_operation_calls_for_uses,false).
600		preference_default_value(allow_overriding_initialisation,false).
601		preference_default_value(allow_simultaneous_assignments,false).
602		preference_default_value(allow_arith_operators_on_reals,default).
603		preference_default_value(solver_for_reals,precise_float_solver).
604		preference_default_value(cspm_animate_all_processes_without_arguments,false).
605		preference_default_value(cspm_animate_all_processes,false).
606		%preference_default_value(cspm_display_inout,false).
607		preference_default_value(cspm_detailed_animation,false).
608		preference_default_value(cspm_strip_source_location,false).
609		%preference_default_value(csp_event_visible_to_user,false).
610		%preference_default_value(cspm_allow_incomplete_records,false).
611		%preference_default_value(findOnlyOneSol,false).
612		preference_default_value(maxNrOfInitialisations,4).
613		%preference_default_value(randomisedRestartInitalisations,false).
614		preference_default_value(maxNrOfEnablingsPerOperation,10).
615		preference_default_value(time_out,2500).
616		preference_default_value(debug_time_out_factor,5).
617		%preference_default_value(use_large_jvm_for_parser,false).
618		preference_default_value(jvm_parser_heap_size_mb,0).
619		preference_default_value(jvm_parser_additional_args,'').
620		preference_default_value(jvm_parser_position_infos,true).
621		preference_default_value(jvm_parser_fastrw,false).
622		preference_default_value(jvm_parser_force_parsing,false).
623		preference_default_value(show_initialisation_arguments,true).
624		preference_default_value(deterministic_trace_replay,false).
625		%preference_default_value(animate_skip_operations,true).
626		preference_default_value(show_eventb_any_arguments,false).
627		preference_default_value(convert_comprehension_sets_into_closures,false). /* <------------ was true */
628		preference_default_value(comprehension_set_symbolic_limit,20000).
629		preference_default_value(use_clpfd_solver,true). % Default was changed from false to true on November 28 2013; commit d26b1bf1edeb29d630cf798c0773bfa1ba71219b
630		preference_default_value(clpfd_solver_label_option,ffc).
631		preference_default_value(use_chr_solver,false).
632		preference_default_value(data_validation_mode,false).
633		preference_default_value(use_smt_mode,false).
634		preference_default_value(solver_strength,0).
635		preference_default_value(remove_implied_constraints,false).
636		preference_default_value(lift_existential_quantifiers,false).
637		preference_default_value(use_common_subexpression_elimination,false). % CSE
638		preference_default_value(use_common_subexpression_also_for_predicates,true). % CSE_PRED
639		preference_default_value(use_common_subexpression_also_for_substitutions,false). % CSE_SUBST
640		preference_default_value(use_common_subexpression_wd_only,false). % CSE_WD_ONLY
641		preference_default_value(normalize_ast,false). % NORMALIZE_AST
642		preference_default_value(normalize_ast_sort_commutative,false).
643		preference_default_value(optimize_ast,true). % OPTIMIZE_AST
644		%preference_default_value(optimize_enum_set_elems,false).
645		preference_default_value(useless_code_elimination,false). % see test 1660
646		preference_default_value(compile_while_body,true). % COMPILE_WHILE
647		preference_default_value(expand_becomes_such_into_set,false). % EXPAND_BECOMES_SUCH
648		preference_default_value(warn_about_failing_assignments,false).
649		preference_default_value(detect_lambdas,true). % DETECT_LAMBDAS
650		preference_default_value(auto_detect_theory_ops,false). % AUTO_DETECT_THEORY_MAPPING
651		preference_default_value(ltsmin_guard_splitting,false).
652		preference_default_value(ltsmin_do_not_evaluate_top_level_guards,false).
653		preference_default_value(fail_if_clpfd_timeout,false).
654		%preference_default_value(allow_recursive_closures,false).
655		preference_default_value(use_static_ordering,false).
656		preference_default_value(try_use_state_packing,auto).
657		preference_default_value(use_state_packing,false). % computed
658		preference_default_value(force_state_packing_for_closures,false).
659		preference_default_value(provide_trace_information,false).
660		:- if(environ(prob_profile,true)).
661		preference_default_value(prob_profiling_on,true).
662		:- else.
663		preference_default_value(prob_profiling_on,false).
664		:- endif.
665		:- if(environ(prob_src_profile,true)).
666		preference_default_value(prob_source_profiling_on,true).
667		:- else.
668		preference_default_value(prob_source_profiling_on,false).
669		:- endif.
670		preference_default_value(performance_monitoring_on,false).
671		preference_default_value(performance_monitoring_expansion_limit,100).
672		preference_default_value(partition_predicates,true).
673		preference_default_value(partition_predicates_inline_equalities,true).
674		preference_default_value(use_closure_expansion_memoization,false).
675		preference_default_value(use_function_memoization,default).
676		preference_default_value(allow_incomplete_partial_setup_constants,false).
677		preference_default_value(re_execute_operations_with_side_effects,false).
678		preference_default_value(warn_if_definition_hides_variable,true).
679		preference_default_value(use_hygienic_definitions,false).
680		preference_default_value(type_check_definitions,false). % can consume time, see test 778; and produces error messages for some tests
681		%preference_default_value(warn_when_expanding_infinite_closures,5).
682		preference_default_value(allow_enumeration_of_infinite_types,true).
683		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
684		preference_default_value(strict_raise_enum_warnings,false).
685		preference_default_value(clash_strict_checks,false).
686		preference_default_value(perform_stricter_static_checks,false).
687		preference_default_value(ignore_prj_types,false).
688		%preference_default_value(never_convert_closures_into_explicit_form,false).
689		%preference_default_value(convert_types_into_closures,true).
690		%preference_default_value(convert_closures_into_explicit_form_for_store,true). % <--- maybe remove preference
691		%preference_default_value(allow_empty_global_sets,false).
692		%preference_default_value(test_case_gen_stop_at_first_error,false).
693		preference_default_value(prefix_internal_operation_arguments,'$none'). %all operations arguments are external and shown in testcases
694		preference_default_value(generate_minimal_nr_of_testcases,true).
695		preference_default_value(use_tk_custom_state_viewer,true).
696		preference_default_value(tk_custom_state_viewer_font_name,'').
697		preference_default_value(tk_custom_state_viewer_font_size,0).
698		preference_default_value(tk_custom_state_viewer_padding,0).
699		preference_default_value(tk_custom_state_viewer_str_padding,10).
700		preference_default_value(use_small_window,false).
701		preference_default_value(tk_show_source_pane,true).
702		preference_default_value(ignore_hash_collisions,false).
703		preference_default_value(forget_state_space,false).
704		preference_default_value(store_only_one_incoming_transition,false).
705		preference_default_value(mc_continue_after_error,false).
706		%preference_default_value(enable_permutation_reducation,false).
707		%preference_default_value(use_symmetry_marker_hash,false).
708		%preference_default_value(enable_canonical_symmetry,false).
709		%preference_default_value(use_nauty_symmetry_reduction,false).
710		preference_default_value(symmetry_mode,off).
711		preference_default_value(use_static_symmetry_detection,true).
712		%preference_default_value(bool_expression_as_predicate,false).
713		preference_default_value(allow_untyped_identifiers,false).
714		preference_default_value(repl_unicode,false).
715		preference_default_value(repl_cache_parsing,false).
716		preference_default_value(cache_constants,true).
717		preference_default_value(cache_operations,true).
718		preference_default_value(cache_operations_runtime_limit,0).
719		preference_default_value(latex_encoding,auto).
720		preference_default_value(latex_pp_greek_ids,false).
721		preference_default_value(xml_encoding,auto).
722		preference_default_value(view_probcli_errors_using_bbresults,false).
723		preference_default_value(eventtrace,false).
724		preference_default_value(store_event_transinfo,false).
725		preference_default_value(use_solver_on_load,prob).
726		%preference_default_value(try_kodkod_on_load,false).
727		preference_default_value(kodkod_for_components,true).
728		preference_default_value(kodkod_raise_warnings,false).
729		preference_default_value(kodkod_max_nr_solutions,22).
730		preference_default_value(kodkod_symmetry_level,0).
731		preference_default_value(kodkod_sat_solver,sat4j).
732		preference_default_value(smt_supported_interpreter,false).
733		preference_default_value(sat_supported_interpreter,false).
734		preference_default_value(use_record_construction,true). % was false
735		preference_default_value(seen_machines_included,false).
736		preference_default_value(allow_sequence_operators_on_strings,true).
737
738		preference_default_value(dot_print_edge_labels,true).
739		preference_default_value(dot_print_action_arguments,true).
740		preference_default_value(dot_print_functions,false).
741		preference_default_value(dot_print_self_loops,true).
742		preference_default_value(dot_print_arc_colors,true).
743		preference_default_value(dot_print_root,true).
744		%preference_default_value(dot_print_leaves,true).
745		preference_default_value(dot_print_node_ids,false).
746		preference_default_value(dot_print_transition_ids,false).
747		preference_default_value(dot_print_use_constants,true).
748		preference_default_value(dot_print_node_info,true).
749		preference_default_value(dot_use_ps_viewer,PS) :- host_platform(X),
750		(X = darwin -> PS = true % on recent macOS platforms all GraphViz Dotty viewers seem broken
751		; X=windows -> PS = true % GraphViz no longer seems to distribute the Dotty viewer
752		; PS=false).
753		preference_default_value(path_to_dot,Path) :- try_get_program_path('dot',Path).
754		preference_default_value(dot_default_engine,dot).
755		preference_default_value(path_to_dotty,VIEWER) :- (possible_program(dot_viewer,E) -> VIEWER=E ; VIEWER ='dotty').
756		%preference_default_value(path_to_dotty,'/Applications/OmniGraffle/OmniGraffle.app/Contents/MacOS/OmniGraffle').
757		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
758		preference_default_value(path_to_ps_viewer,VIEWER) :-
759		(possible_program(pdf_viewer,E) -> VIEWER=E ; VIEWER ='gv').
760		preference_default_value(path_to_latex,Path) :- try_get_program_path('pdflatex',Path).
761		%preference_default_value(path_to_ps_viewer,'open -a /Applications/Preview.app') :- host_platform(darwin).
762		%preference_default_value(path_to_ps_viewer,'C:/Program Files/Ghostgum/gsview/gsview32') :- host_platform(windows).
763		%preference_default_value(path_to_ps_viewer,'gv') :- host_platform(linux) ; host_platform(unknown).
764		%preference_default_value(path_to_ps_viewer,'open -a /Applications/MacGhostViewX_Folder/MacGhostViewX.app').
765		preference_default_value(dot_root_shape,invtriangle).
766		preference_default_value(dot_node_penwidth,2).
767		preference_default_value(dot_edge_penwidth,1).
768		preference_default_value(dot_normal_node_shape,box). % egg,ellipse
769		preference_default_value(dot_current_node_shape,doubleoctagon).
770		preference_default_value(dot_open_node_colour,'#F4E3C1'). %'#E88C59' '#C96D37'
771		preference_default_value(dot_scope_limit_node_colour,gray).
772		preference_default_value(dot_normal_node_colour,'#99BF38').
773		preference_default_value(dot_invariant_violated_node_colour,'#FF3800'). %'#FF4409'
774		preference_default_value(dot_fill_normal_nodes,false).
775		preference_default_value(dot_normal_arc_colour,'#006391').
776		preference_default_value(dot_node_font_size,12).
777		preference_default_value(dot_edge_font_size,12).
778		preference_default_value(dot_with_page_size,true).
779		preference_default_value(dot_horizontal_layout,false).
780		preference_default_value(dot_colour_goal_nodes,true).
781		preference_default_value(dot_goal_node_colour,orange).
782		preference_default_value(dot_print_node_properties,false).
783		preference_default_value(dot_counterexample_node_colour,brown).
784		preference_default_value(dot_counterexample_op_colour,brown).
785		preference_default_value(dot_hierarchy_max_ids,0).
786		preference_default_value(cbc_provide_explanations,false).
787
788		preference_default_value(successful_rule_colour,'#4caf504d').
789		preference_default_value(failed_rule_colour,'#cc2f274d').
790		preference_default_value(disabled_rule_colour,lightgray).
791		preference_default_value(not_checked_rule_colour,white).
792		preference_default_value(rule_graph_shape,ellipse).
793		preference_default_value(executed_computation_colour,'#4caf504d').
794		preference_default_value(not_executed_computation_colour,white).
795		preference_default_value(disabled_computation_colour,lightgray).
796		preference_default_value(computation_graph_shape,rectangle).
797		preference_default_value(succeeded_dependency_colour,'#4caf50').
798		preference_default_value(failed_dependency_colour,'#cc2f27').
799		preference_default_value(normal_dependency_colour,black).
800
801		preference_default_value(dot_event_hierarchy_horizontal,true).
802		preference_default_value(dot_event_hierarchy_machine_colour,gray95).
803		preference_default_value(dot_event_hierarchy_refines_colour,'#C0A060'). % Dark Khaki; see http://www.gpeters.com/color/color-schemes.php?search_term=Art+Nouveau
804		preference_default_value(dot_event_hierarchy_new_event_colour,'#C06040'). % Coral '#C08040'). % Peru
805		preference_default_value(dot_event_hierarchy_rename_event_colour,'#E0E0A0'). % Pale Goldenrod
806		preference_default_value(dot_event_hierarchy_rename_unchanged_event_colour,'#E0F0E0'). % Honeydew
807		preference_default_value(dot_event_hierarchy_unchanged_event_colour,gray92).
808		preference_default_value(dot_event_hierarchy_grd_strengthening_event_colour,gray83).
809		preference_default_value(dot_event_hierarchy_grd_keeping_event_colour,'#E0C080'). % Burlywood
810		preference_default_value(dot_event_hierarchy_edge_colour,'#806040'). % Sienna
811		preference_default_value(dot_event_hierarchy_extends_colour,gray50).
812		preference_default_value(dot_hierarchy_show_extra_detail,false).
813
814		preference_default_value(dot_projection_non_det_edge_colour,'#806040'). % Sienna; alternative :#A06040 Light Salmon
815		preference_default_value(dot_projection_det_edge_colour,black).
816		preference_default_value(dot_projection_non_definite_edge_style,dashed).
817		preference_default_value(dot_projection_definite_edge_style,solid).
818		preference_default_value(dot_projection_label_limit,75).
819		preference_default_value(dot_projection_process_only_explored,false).
820		preference_default_value(dot_use_unicode,true).
821		preference_default_value(dot_predicate_node_shape,rect).
822		preference_default_value(dot_expression_node_shape,record).
823		preference_default_value(dot_var_mod_hide_only_written,false).
824
825
826		preference_default_value(mc_dc_default_level,2).
827
828		preference_default_value(dot_enabling_show_readwrites,true).
829
830		preference_default_value(dot_definitions_use_sub_graph,true).
831		preference_default_value(dot_definitions_show_all,false).
832		preference_default_value(dot_state_graph_decompose,true).
833
834		preference_default_value(font_size,'Monaco 12') :- host_platform(darwin).
835		% Monaco looks better than Courier on Mac, Consolas
836		% Note: ctext seems to use a non-monospaced font for TkFixedFont
837		preference_default_value(font_size,'TkFixedFont 12') :- host_platform(X), X\==darwin. % alternative: Courier, Monaco, Consolas
838		preference_default_value(font_name,'Monaco') :- host_platform(darwin).
839		preference_default_value(font_name,'TkFixedFont') :- host_platform(X), X\==darwin. % alternative: Courier, Monaco
840		preference_default_value(font_size_only,12).
841		preference_default_value(use_font_size_for_columns,false).
842		preference_default_value(allow_source_code_editing,true).
843		preference_default_value(show_line_numbers,false).
844		%preference_default_value(show_full_error_span,true).
845		preference_default_value(highlight_brackets,true).
846		preference_default_value(highlight_current_line,true).
847		preference_default_value(ask_when_content_changed,false).
848		preference_default_value(user_not_beginner,false).
849		preference_default_value(user_is_an_expert_with_accessto_source_distribution,false).
850		%preference_default_value(default_to_runtime_type_checking_on_startup_for_expert,false).
851		preference_default_value(path_to_probe,'C:/probe/probe-1.30-windows/probe.exe') :- host_platform(windows).
852		preference_default_value(path_to_probe,'more') :- host_platform(X), X\==windows.
853		preference_default_value(path_to_spin,'xspin').
854		preference_default_value(path_to_cspm,'/usr/bin/cspm').
855		preference_default_value(path_to_text_editor,EDITOR) :-
856		(possible_program(editor,E) -> EDITOR=E ; EDITOR ='').
857		preference_default_value(path_to_text_editor_launch,EDITOR) :-
858		(possible_program(editor_launch,E) -> EDITOR=E ; EDITOR ='vi').
859		%preference_default_value(path_to_fuzz,'fuzz').
860		preference_default_value(path_to_fdr,'fdr2').
861		preference_default_value(path_to_csp_typechecker,FDR3) :-
862		(possible_program(fdr3,E) -> FDR3=E ; FDR3 ='refines').
863		preference_default_value(path_to_bcomp,'bcomp').
864		preference_default_value(path_to_atb_krt,Default) :- try_get_program_path('krt',Default).
865		preference_default_value(path_to_java,Default) :- try_get_program_path('java',Default).
866		preference_default_value(path_to_java_parser,''). % use default probcliparser.jar in lib folder
867		preference_default_value(try_atb_provers,false).
868		preference_default_value(smtlib2b_arrays_as_sets,false).
869		preference_default_value(smtlib2b_cleanup_predicate,false).
870		preference_default_value(symbolic_mc_try_other_solvers,false).
871		preference_default_value(ltl_to_ba_tool,'lib/ltl2ba').
872		preference_default_value(path_to_clingo,Default) :- try_get_program_path(clingo,Default).
873
874		preference_default_value(number_of_recent_documents,25).
875		preference_default_value(number_of_searched_patterns,9).
876		preference_default_value(number_of_replaced_patterns,9).
877		preference_default_value(number_of_eval_history_elements,50).
878		preference_default_value(number_of_eval_csp_history_elements,50).
879		preference_default_value(number_of_checked_ltl_formulas,20).
880
881		preference_default_value(do_syntax_highlighting,true).
882		preference_default_value(sh_type_colour,darkred).
883		preference_default_value(sh_logical_colour,tomato).
884		preference_default_value(sh_assignments_colour,darkslateblue).
885		preference_default_value(sh_operators,'#5883be').
886		preference_default_value(sh_top_level_keywords,blue).
887		preference_default_value(sh_control_keywords,darkviolet).
888		%preference_default_value(sh_includes_keywords,darkslateblue).
889		preference_default_value(sh_comments,'#784e50').
890		preference_default_value(sh_pragmas,'#5b5b5b').
891		preference_default_value(sh_unsupported_background,yellow).
892
893		preference_default_value(expand_forall_upto,100).
894		preference_default_value(double_evaluation_when_analysing,true).
895		:- if(environ(prob_safe_mode,true)).
896		preference_default_value(prob_safe_mode,true).
897		:- else.
898		preference_default_value(prob_safe_mode,false).
899		:- endif.
900		preference_default_value(expand_avl_upto,100).
901		preference_default_value(show_bvisual_formula_explanations,false).
902		preference_default_value(show_bvisual_formula_functor_from,Val) :-
903		(get_prob_application_type(tcltk) -> Val=0 ; Val = -1). % disable for ProB2
904		preference_default_value(show_bvisual_proof_info_icons,Val) :-
905		(get_prob_application_type(tcltk) -> Val=true ; Val = false). % disable for ProB2
906		preference_default_value(formula_tree_minimal_timeout,1000).
907		preference_default_value(formula_tree_maximal_timeout,30000).
908		preference_default_value(show_function_tuples_in_property,true).
909		preference_default_value(bugly_pp_scrambling,false).
910		preference_default_value(pp_propositional_logic_mode,false).
911		preference_default_value(pp_wd_infos,false).
912		preference_default_value(pp_with_terminal_colour,false).
913		preference_default_value(wd_ignore_external_funs,false).
914		preference_default_value(wd_skip_finite_pos,false).
915		preference_default_value(wd_analysis_for_animation,true).
916		preference_default_value(z3_solve_for_animation,true).
917		preference_default_value(add_wd_pos_for_z3,true).
918		preference_default_value(do_not_print_wd_errors,false).
919
920		preference_default_value(allow_new_ops_in_refinement,false).
921		preference_default_value(allow_local_operation_calls,false).
922		preference_default_value(allow_operation_calls_in_expr,false).
923		preference_default_value(allow_let_to_reuse_introduced_ids,false).
924		preference_default_value(use_po,true).
925		preference_default_value(try_operation_reuse,auto).
926		preference_default_value(try_operation_reuse_for_invariants,true).
927		preference_default_value(operation_reuse_setting,false).
928		preference_default_value(randomise_operation_order,false).
929		preference_default_value(randomise_enumeration_order,false).
930		preference_default_value(perform_enumeration_order_analysis,true).
931		preference_default_value(set_rand,false).
932		preference_default_value(rand_seed,2342452).
933
934		preference_default_value(use_cbc_analysis,true).
935		preference_default_value(timeout_cbc_analysis,300).
936
937		preference_default_value(use_scope_predicate,true).
938		preference_default_value(use_ignore_pragmas,false).
939
940		preference_default_value(alloy_use_implementable_integers,false).
941		preference_default_value(alloy_scopeless_translation,false).
942		preference_default_value(alloy_translation_for_proof,false).
943		preference_default_value(alloy_strict_integers,true).
944
945		preference_default_value(sequent_prover_rodin_mode,false).
946
947		%preference_default_value(pge,off).
948		preference_default_value(por,off).
949		preference_default_value(por_heur,random).
950		preference_default_value(use_safety_ltl_model_checker,true).
951
952		preference_default_value(enable_graph,false).
953		preference_default_value(enable_graph_depth,1).
954
955		preference_default_value(dependency_enable_predicates,false).
956
957		preference_default_value(filter_unused_constants,false).
958		preference_default_value(translate_force_all_typing_infos,false).
959		preference_default_value(translate_print_typing_infos,false).
960		preference_default_value(translate_print_frozen_infos,false).
961		preference_default_value(translate_ids_to_parseable_format,false).
962		preference_default_value(translate_suppress_rodin_positions_flag,false).
963		preference_default_value(translate_print_all_sequences,false).
964		preference_default_value(translate_print_cs_style_sequences,false).
965		preference_default_value(translation_limit_for_table_commands,100).
966		preference_default_value(visb_allow_variables_for_objects,Res) :-
967		(prob_application_type(tcltk) -> Res=true ; Res=false).
968		preference_default_value(visb_show_debug_infos,false).
969
970		preference_default_value(trace_generation_limit,100).
971		preference_default_value(trace_generation_time_out,2147483646). % disabled
972
973		/* Disprover mode - deactivates some optimizations only valid for animation */
974		preference_default_value(disprover_mode,false).
975		preference_default_value(allow_improving_wd_mode,false).
976		preference_default_value(trace_upon_error,false).
977		preference_default_value(error_log_file,'').
978		preference_default_value(tlc_number_of_workers,2).
979		preference_default_value(tlc_use_prob_constant_setup,false).
980		preference_default_value(unsat_core_algorithm,linear_greedy).
981
982		preference_default_value(port, 6000). % on macOS Monterey 5000 and 7000 are now used by control center
983		preference_default_value(ip, localhost).
984		preference_default_value(max_states, 0).
985		preference_default_value(tmpdir, '/tmp/').
986		preference_default_value(logdir, './distb-logs/').
987		preference_default_value(proxynumber, 0).
988		preference_default_value(queue_threshold, 20). /* TODO: this is not used an implemented in the proxy (pk, 12.01.18) */
989		preference_default_value(hash_cycle, 25).
990		preference_default_value(cdclt_perform_static_analysis, true).
991		preference_default_value(cdclt_perform_symmetry_breaking, false).
992		preference_default_value(cdclt_use_idl_theory_solver, false).
993		preference_default_value(prob_version_info,Version) :- version_str(Version).
994		preference_default_value(prob_revision_info,Rev) :- revision(Rev).
995		preference_default_value(prob_lastchangedate_info,D) :- lastchangeddate(D).
996
997		preference_default_value(xtl_safe_mode,false).
998
999		preference_default_value(machines_path,Dir) :-
1000		catch(absolute_file_name(examples('.'),Dir),_,Dir='.').
1001
1002
1003
1004		:- use_module(library(file_systems),[file_exists/1,directory_exists/1]).
1005		try_get_program_path(Name,Path) :-
1006		(possible_program(Name,R) -> Path=R
1007		; Path=Name). % hope in PATH
1008	?	possible_program(Type,E) :- host_platform(P),possible_program_aux(Type,P,E),
1009		%format('Trying program ~w for ~w on platform ~w.~n',[E,Type,P]),
1010		(file_exists(E) -> true ; P=darwin, directory_exists(E)).
1011		%format('Found program ~w for ~w on platform ~w.~n',[E,Type,P]).
1012
1013		:-use_module(library(system),[environ/2]).
1014		possible_program_aux(editor_launch,darwin,'/usr/local/bin/bbedit').
1015		possible_program_aux(editor_launch,darwin,'/usr/local/bin/edit'). % Text Wrangler
1016		possible_program_aux(editor_launch,_,PATH) :- environ('EDITOR',PATH).
1017		possible_program_aux(editor_launch,darwin,'/usr/local/bin/atom').
1018		possible_program_aux(editor_launch,linux,'/usr/local/bin/atom').
1019		possible_program_aux(editor_launch,linux,'/usr/bin/kwrite').
1020		possible_program_aux(editor_launch,linux,'/usr/bin/gedit').
1021		possible_program_aux(editor_launch,linux,'/usr/bin/vim').
1022		possible_program_aux(editor,darwin,'/Applications/BBEdit.app').
1023		possible_program_aux(editor,darwin,'/Applications/TextWrangler.app').
1024		possible_program_aux(editor,darwin,'/Applications/Atom.app').
1025		possible_program_aux(editor,darwin,'/Applications/Sublime Text 2.app').
1026		possible_program_aux(editor,darwin,'/Applications/TextMate.app').
1027		possible_program_aux(editor,darwin,'/Applications/TextEdit.app').
1028		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
1029		possible_program_aux(pdf_viewer,darwin,'/Applications/Preview.app') :- prob_application_type(tcltk). % probcli cannot use open -a yet.
1030		possible_program_aux(pdf_viewer,darwin,'/usr/bin/open').
1031		possible_program_aux(pdf_viewer,linux,'/usr/bin/okular'). % KDE
1032		possible_program_aux(pdf_viewer,linux,'/usr/bin/evince'). % GNOME
1033		possible_program_aux(pdf_viewer,windows,'C:/Program Files/Ghostgum/gsview/gsview32').
1034		possible_program_aux(dot_viewer,darwin,'/Applications/MacPorts/Graphviz.app') :- % only version that seems to run on mac
1035		% sudo port install graphviz-gui (see https://ports.macports.org/port/graphviz-gui/)
1036		prob_application_type(tcltk).
1037		possible_program_aux(dot_viewer,darwin,'/Applications/Graphviz.app') :- prob_application_type(tcltk). % probcli cannot use open -a yet
1038		possible_program_aux(dot_viewer,darwin,'/Applications/OmniGraffle.app') :- prob_application_type(tcltk).
1039		possible_program_aux(dot_viewer,darwin,'/Applications/Visual Studio Code.app') :-
1040		% using Graphviz Interactive Preview extension
1041		prob_application_type(tcltk).
1042		possible_program_aux(dot_viewer,darwin,'/usr/bin/open').
1043		possible_program_aux(dot_viewer,windows,'C:/Program Files/Graphviz2.38/bin/dotty.exe').
1044		possible_program_aux(dot_viewer,windows,'C:/Program Files (x86)/Graphviz2.38/bin/dotty.exe').
1045		possible_program_aux(krt,darwin,'/Applications/AtelierB.app/AB/bbin/macosx/krt').
1046		possible_program_aux(krt,darwin,'/Applications/atelierb-free-arm64-24.04.2.app/Contents/Resources/bin/krt').
1047		%possible_program_aux(krt,darwin,'/Applications/atelierb-full-4.6.0-rc4.app/Contents/Resources/bbin/macosx/krt'). % set DYLD_VERSIONED_LIBRARY_PATH ?
1048		possible_program_aux(java,windows,'C:/Program Files/Java/jre7/bin/java.exe').
1049		possible_program_aux(java,P,'/usr/bin/java') :- unix(P).
1050		possible_program_aux(fdr3,darwin,'/Applications/FDR3.app/Contents/MacOS/refines').
1051		possible_program_aux(fdr3,darwin,'/Applications/FDR4.app/Contents/MacOS/refines').
1052		%possible_program_aux(sfdp,P,'/usr/local/bin/sfdp') :- unix(P).
1053		possible_program_aux(dot,P,'/usr/local/bin/dot') :- unix(P).
1054		possible_program_aux(dot,darwin,'/opt/homebrew/bin/dot'). % location of new homebrew on M1/Arm Macs
1055		% full location is e.g. /opt/homebrew/Cellar/graphviz/8.0.1/bin/dot
1056		possible_program_aux(dot,P,'/opt/local/bin/dot') :- unix(P). % e.g., location of MacPorts
1057		possible_program_aux(dot,P,'/usr/bin/dot') :- P=linux.
1058		possible_program_aux(pdflatex,P,'/usr/local/texlive/2016/bin/x86_64-darwin/pdflatex') :- P=darwin.
1059		possible_program_aux(pdflatex,P,'/usr/local/texlive/2019/bin/x86_64-darwin/pdflatex') :- P=darwin.
1060		possible_program_aux(pdflatex,P,'/usr/local/bin/pdflatex') :- unix(P).
1061		possible_program_aux(pdflatex,P,'/opt/local/bin/pdflatex') :- unix(P).
1062		possible_program_aux(open,darwin,'/usr/bin/open').
1063		possible_program_aux(open,linux,'xdg-open').
1064		possible_program_aux(open,windows,'start').
1065		possible_program_aux(clingo,darwin,'/opt/homebrew/bin/clingo').
1066
1067
1068		unix(darwin).
1069		unix(linux).
1070
1071		/* ------------------------- */
1072
1073		% now in basic_tests.pl
1074		%:- assert_must_succeed( \+((preference_description(P,_D),\+preference_default_value(P,_Val)))).
1075		%:- assert_must_succeed( \+((preference_default_value(P,_D), \+preference_description(P,_Val)))).
1076		preference_description(maxNrOfInitialisations,'Max Number of Initialisations and Constant-Setups Computed').
1077		%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)').
1078		% now we can use MAX_OPERATIONS_INITIALISATION == -Nr
1079		preference_description(maxNrOfEnablingsPerOperation,'Max Number of Enablings per Operation Computed').
1080		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)').
1081		preference_description(globalsets_fdrange,'Size of unspecified deferred sets in SETS section').
1082		preference_description(maxint,Desc) :-
1083		(get_prob_application_type(rodin)
1084		-> Desc='maximum value for unbounded integer enumerations'
1085		; Desc='value of MAXINT, controls enumeration of integers and used to define NAT in classical B (2147483647 for 32 bit ints)').
1086		preference_description(minint,Desc) :-
1087		(get_prob_application_type(rodin)
1088		-> Desc='minimum value for unbounded integer enumerations'
1089		; 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
1090		preference_description(number_animated_abstractions,'How many levels of refined Event-B models are animated by default').
1091		preference_description(number_skipped_refined_machines,'How many levels of concrete Event-B refinements are skipped for animation').
1092		%preference_description(findOnlyOneSol,'Find only one solution per Operation or Initialisation').
1093		preference_description(debug_time_out_factor,'Debug Properties: Multiplying Factor for Timeout').
1094		%preference_description(use_large_jvm_for_parser,'Use large Heap and Stack size for Java Parser').
1095		preference_description(jvm_parser_heap_size_mb,'Heap size in MB for Java parser (-Xmx JVM option, 0 means default value)').
1096		preference_description(jvm_parser_additional_args,'Additional arguments sent to the JVM for the Java parser (e.g., "-XX:+UseG1GC -Xss5m")').
1097		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)').
1098		preference_description(jvm_parser_fastrw,'Use binary (fastrw) format for .prob files for faster loading').
1099		preference_description(jvm_parser_force_parsing,'Always parse B machines even if .prob file is up-to-date').
1100		preference_description(do_invariant_checking,'Check invariant while animating and model checking').
1101		preference_description(do_assert_checking,'Check ASSERT statements while animating and model checking').
1102		%preference_description(do_neginvariant_checking,'Check negation of invariant').
1103		%preference_description(do_full_invariant_checking,'Check types when checking invariant').
1104		%preference_description(use_new_kernel,'Use new Kernel (only some basic operations supported, only fore PRE and INITs)').
1105		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').
1106		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)').
1107		preference_description(cspm_animate_all_processes,'Animate all CSP-M processes (also processes with arguments)').
1108		preference_description(cspm_animate_all_processes_without_arguments,'Animate all CSP-M processes without arguments (not just MAIN)').
1109		%preference_description(cspm_display_inout,'Display unsynchronised inputs/outputs as ?/!').
1110		preference_description(cspm_detailed_animation,'Provide more fine-grained source-location animation for CSP (can slow model checking down)').
1111		preference_description(cspm_strip_source_location,'Strip CSP source-location information (for RHS of processes, except for internal choice)').
1112		%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).').
1113		%preference_description(cspm_allow_incomplete_records,'Allow construction of incomplete records (e.g., for Casper files)').
1114		preference_description(use_clpfd_solver,'Use CLP(FD) solver for B integers (restricts range to -2^28..2^28-1 on 32 bit machines)').
1115		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)').
1116		preference_description(use_chr_solver,'Use CHR based solver. Should speed up detection of unsolvable predicates, but might slow down solving in general.').
1117		preference_description(data_validation_mode,'Assume everything can be computed without constraint solving.').
1118		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)').
1119		preference_description(comprehension_set_symbolic_limit,'Limit for expanding comprehension sets (comprehension sets known to be larger than limit will be kept symbolic)').
1120		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
1121		preference_description(solver_strength,'Strength of certain Solver propagations (0 is default)').
1122		preference_description(remove_implied_constraints,'Remove unnecessary constraints implied by other constraints').
1123		preference_description(lift_existential_quantifiers,'Lift existential quantifiers, i.e., treat existentially quantified variables like ordinary variables').
1124		preference_description(use_common_subexpression_elimination,'Enable CSE (Common Subexpression Elimination)').
1125		preference_description(use_common_subexpression_also_for_predicates,'Apply CSE (if enabled) also to predicates').
1126		preference_description(use_common_subexpression_also_for_substitutions,'Apply CSE (if enabled) also to substitutions (operation/event bodies) [EXPERIMENTAL]').
1127		preference_description(use_common_subexpression_wd_only,'Apply CSE (if enabled) only to well-defined sub-formulas').
1128		preference_description(normalize_ast,'Normalize AST before passing to ProB kernel (rewrites many B predicates into simpler form)').
1129		preference_description(normalize_ast_sort_commutative,'Sort commutative operators (useful with NORMALIZE_AST to try detect equivalent formulas)').
1130		preference_description(optimize_ast,'Optimize AST (Abstract Syntax Tree) before passing to ProB kernel (rewrites many B predicates into more efficient form)').
1131		%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
1132		preference_description(useless_code_elimination,'Useless Code Elimination: try and find useless statements which have no influence on the result of an operation.').
1133		preference_description(compile_while_body,'Compile bodies of WHILE loops if variant large').
1134		preference_description(expand_becomes_such_into_set,'Convert becomes_such x:(Pred) into x::{x|Pred} (can be more efficient within complex statements)').
1135		preference_description(warn_about_failing_assignments,'Warn when assignments (x :: Set or x:(Pred)) fail in classical B (in Event-B these are already considered errors)').
1136		preference_description(detect_lambdas,'Detect set comprehensions which can be rewritten into lambdas.').
1137		preference_description(auto_detect_theory_ops,'Try and detect mappings of Rodin axiomatic theory operators based on name.').
1138		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').
1139		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)').
1140		preference_description(fail_if_clpfd_timeout,'Assume failure if posting a CLP(FD) constraint times-out').
1141		%preference_description(allow_recursive_closures,'Lazy expansion of *Recursive* set Comprehensions and lambdas').
1142		preference_description(use_static_ordering,'Use static ordering to enumerate constants which occur in most PROPERTIES first'). % sort properties
1143		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)').
1144		preference_description(use_state_packing,'Computed actual value of COMPRESSION preference').
1145		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
1146		preference_description(provide_trace_information,'Provide various tracing information on the terminal/console.').
1147		preference_description(prob_profiling_on,'Keep track of ProB profiling information (e.g., for time spent in operations or memoized function calls)').
1148		preference_description(prob_source_profiling_on,'Keep track of ProB source profiling information (e.g., which parts of the B source code is covered)').
1149		preference_description(performance_monitoring_on,'Provide performance monitoring information on the terminal/console.').
1150		preference_description(performance_monitoring_expansion_limit,'Limit in ms for printing warnings when expanding comprehension sets in performance monitoring mode.').
1151		preference_description(partition_predicates,'Partition predicates (PROPERTIES) into components').
1152		preference_description(partition_predicates_inline_equalities,'Inline equalities when partitioning into components').
1153		preference_description(use_closure_expansion_memoization,'MEMOize expansions of set comprehensions and lambda abstractions.').
1154		preference_description(use_function_memoization,'MEMOIZE function applications of all functions defined in ABSTRACT_CONSTANTS (default means only memoize functions annotated /*@desc memo */).').
1155		preference_description(allow_incomplete_partial_setup_constants,'Allow ProB to proceed even if only part of the CONSTANTS have been found.').
1156		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).').
1157		preference_description(warn_if_definition_hides_variable,'Warn if a DEFINITION hides a variable with the same name').
1158		preference_description(use_hygienic_definitions,'Automatically create LETs for DEFINITION parameters to avoid variable capture and avoid code duplication'). % autmatically enabled for Alloy and TLA+
1159		preference_description(type_check_definitions,'Type check all visible DEFINITIONs (not just used ones)').
1160		%preference_description(warn_when_expanding_infinite_closures,'Warn when expanding infinite closures if MAXINT larger than: ').
1161		preference_description(allow_enumeration_of_infinite_types,'Allow enumeration of infinite types').
1162		preference_description(strict_raise_warnings,'Treat warnings as errors (Warning: can generate spurious NOT-WELL-DEFINED messages).').
1163		preference_description(strict_raise_enum_warnings,'Treat ENUMERATION warnings (aka VIRTUAL TIME-OUTS) as errors (Warning: can generate spurious NOT-WELL-DEFINED messages).').
1164		preference_description(clash_strict_checks,'Do a stricter checking for name CLASHES in B machines').
1165		preference_description(perform_stricter_static_checks,'Perform stricter additional static checks on formulas (automatically set by ProB).').
1166		preference_description(ignore_prj_types,'Ignore types of prj1 and prj2 (i.e., prj1({1},{1})(2,3) is considered well-defined').
1167
1168		%preference_description(never_convert_closures_into_explicit_form,'Never convert closures back into explicit form (only use for debugging !)').
1169		%preference_description(convert_types_into_closures,'Lazy expansion of type expressions (POW,-->,...)').
1170		%preference_description(convert_closures_into_explicit_form_for_store,'Convert lazy form back into explicit form for Variables, Constants, Operation Arguments').
1171		%preference_description(allow_empty_global_sets,'Allow empty global SETs').
1172		%preference_description(test_case_gen_stop_at_first_error,'Stop at first error in test case generation').
1173		preference_description(prefix_internal_operation_arguments,'Prefix of internal operation arguments (these are not included in test cases)').
1174		preference_description(generate_minimal_nr_of_testcases,'Generate minimal suite of mcm testcases (and not one per event)').
1175		preference_description(use_tk_custom_state_viewer,'Use custom Tk viewer to represent state of B Machine').
1176		preference_description(tk_custom_state_viewer_font_name,'Font for animation strings (if empty, the editor font will be used)').
1177		preference_description(tk_custom_state_viewer_font_size,'Font size for animation strings (if 0, the editor font size will be used)').
1178		preference_description(tk_custom_state_viewer_padding,'Padding (in pixels) between images of custom TK state viewer').
1179		preference_description(tk_custom_state_viewer_str_padding,'Padding (in pixels) between strings of custom TK state viewer').
1180		preference_description(use_small_window,'Use a small main window for ProB (useful on small screens)').
1181		preference_description(tk_show_source_pane,'Show the B Source Code').
1182		preference_description(ignore_hash_collisions,'Ignore hash collisions in state space (if true not all states may be computed!)').
1183		preference_description(forget_state_space,'Do not remember state space (mainly useful in conjunction with IGNORE_HASH_COLLISIONS)').
1184		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
1185		preference_description(mc_continue_after_error,'Continue model checking even after an error or goal has been found').
1186		%preference_description(enable_permutation_reducation,'Enable Permutation Flooding').
1187		%preference_description(use_symmetry_marker_hash,'Use Symmetry Hash Marker').
1188		%preference_description(enable_canonical_symmetry,'Enable Symmetry Reduction by Canonical Form Computation').
1189		%preference_description(use_nauty_symmetry_reduction,'Use Nauty ((c) McKay) C Library for Symmetry Reduction with Canonical Form Computation').
1190		preference_description(symmetry_mode,'Symmetry Mode: off,flood,canon,nauty,hash').
1191		preference_description(use_static_symmetry_detection,'Detect symmetries in forall/exists and in PROPERTIES for deferred sets').
1192		%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)' ).
1193		preference_description(allow_untyped_identifiers,'Allow UNTYPED identifiers (they will be assigned new deferred sets as type)' ).
1194		preference_description(repl_unicode,'Use UNICODE in REPL and editing window').
1195		preference_description(repl_cache_parsing,'Cache parsing in REPL (useful if same formula gets parsed multiple times, e.g., for Latex processing)').
1196		preference_description(cache_constants,'Cache constant values when -cache is activated'). % value_persistance
1197		preference_description(cache_operations,'Cache operations/events when -cache is activated'). % ditto
1198		preference_description(cache_operations_runtime_limit,'Minimal runtime for operations to be stored in -cache').
1199		preference_description(latex_encoding,'Encoding used for Latex processing with -latex (auto,ISO-8859-1,ISO-8859-2,UTF-8,UTF-16,...)').
1200		preference_description(latex_pp_greek_ids,'Prety-print Greek identifiers (Sigma,...) in Latex mode').
1201		preference_description(xml_encoding,'Encoding used for XML processing, e.g., with -logxml (auto,ISO-8859-1,ISO-8859-2,UTF-8,UTF-16,...)').
1202		preference_description(view_probcli_errors_using_bbresults,'Show probcli errors using the BBEdit (11.6 or newer) bbresults command').
1203
1204		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
1205		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
1206		preference_description(use_solver_on_load,'Use this solver for PROPERTIES when loading machines').
1207		%preference_description(try_kodkod_on_load,'Apply translation to KODKOD on PROPERTIES when loading machines').
1208		preference_description(kodkod_for_components,'Translate only complete components to KODKOD (false allows partial translations)'). % and full throws enumeration warning if translation fails
1209		preference_description(kodkod_raise_warnings,'Raise WARNING when component or predicate cannot be translated to KODKOD').
1210		preference_description(kodkod_max_nr_solutions,'Maximum number of solutions computed and sent by KODKOD per batch.').
1211		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').
1212		% 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.
1213		preference_description(kodkod_sat_solver,'SAT solver used for Kodkod (sat4j, minisat, lingeling, glucose)').
1214		preference_description(smt_supported_interpreter,'Use Z3 / CVC4 for predicates inside the B interpreter').
1215		preference_description(sat_supported_interpreter,'Use Kodkod for specific predicates inside the B interpreter').
1216		preference_description(use_record_construction,'Records: Check if axioms/properties describe a record pattern').
1217		preference_description(seen_machines_included,'Seen/used machines are included (no operations available) instead of extended').
1218		preference_description(allow_sequence_operators_on_strings,'Allow sequence operators (^) to be applied to STRINGs').
1219		preference_description(show_eventb_any_arguments,'Show top-level ANY variable values of B Operations without parameters as parameters').
1220		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
1221		%preference_description(animate_skip_operations,'Animate operations which are skip or PRE C THEN skip').
1222		preference_description(deterministic_trace_replay,'Replay Traces without backtracking (to reduce memory consumption)').
1223		preference_description(treat_outermost_pre_as_select,'Treat outermost PRE as SELECT').
1224		preference_description(require_operations_to_assign_all_outputs,'Require operations to assign to all outputs').
1225		preference_description(allow_operations_to_read_outputs,'Allow B operations to read output parameters; output values will be initialised to default value in animator.').
1226		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').
1227		preference_description(allow_overriding_initialisation,'Allow to override INITIALISATION of included/extended machines'). % useful when using EXTENDS to create animation instances
1228		preference_description(allow_simultaneous_assignments,'Allow B operations to assign multiple times to same variable (ASM style)').
1229		preference_description(allow_arith_operators_on_reals,'Allow to use the REAL datatype').
1230		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)').
1231		%preference_description(check_prolog_b_ast,'Check the abstract syntax tree for B machines').
1232		preference_description(dot_print_edge_labels,'Show edge labels (operation names) in state space').
1233		preference_description(dot_print_action_arguments,'Show operation arguments (when edge labels shown)').
1234		preference_description(dot_print_functions,'Show functions (operations that return values w/o changing state) in state space').
1235		preference_description(dot_print_self_loops,'Show self-loops in state space and other dot graphs').
1236		%preference_description(dot_print_leaves,'Print Leaves').
1237		preference_description(dot_print_arc_colors,'Colour the arcs (disable for import in OmniGraffle)').
1238		preference_description(dot_print_root,'Show root node in state space').
1239		preference_description(dot_print_node_ids,'Show internal state ids in state space').
1240		preference_description(dot_print_transition_ids,'Show transition ids in state space').
1241		preference_description(dot_print_node_info,'Show additional state information (values of variables)').
1242		preference_description(dot_print_use_constants,'Use constants for deferred set values if possible').
1243		preference_description(dot_use_ps_viewer,'Use PDF/Postscript Viewer for .dot files').
1244		preference_description(path_to_dot,'Path/Command for dot program (using "/" even on Windows. Try avoiding spaces in path)').
1245		preference_description(dot_default_engine,'Default layout engine used for dot (dot,neato,sfdp,fdp,twopi,circo)').
1246		preference_description(path_to_dotty,'Path/Command for viewer of .dot files (e.g., dotty)').
1247		%preference_description(path_to_sfdp,'Path/Command for sfdp program for dot files (using "/" even on Windows. Try avoiding spaces in path)').
1248		preference_description(path_to_ltsmin,'Path to LTSmin commands, such as prob2lts-sym for symbolic model checking (not available for Windows.)').
1249		preference_description(path_to_ps_viewer,'Path/Command for PDF/Postscript viewer').
1250		preference_description(path_to_latex,'Path/Command for Latex (pdflatex)').
1251		preference_description(dot_root_shape,'Shape for root node (invtriangle,triangle, ellipse, box, diamond,...)').
1252		preference_description(dot_normal_node_shape,'Shape for normal node').
1253		preference_description(dot_current_node_shape,'Shape for current node').
1254		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').
1255		preference_description(dot_scope_limit_node_colour,'Colour for open, but uninteresting nodes (red,green,blue,gray,... or rgb hex #ff00ff)').
1256		preference_description(dot_normal_node_colour,'Colour for normal node').
1257		preference_description(dot_node_penwidth,'Pen width for nodes').
1258		preference_description(dot_edge_penwidth,'Pen width for edges').
1259		preference_description(dot_invariant_violated_node_colour,'Colour for invariant violation').
1260		preference_description(dot_fill_normal_nodes,'Fill normal nodes with color').
1261		preference_description(dot_normal_arc_colour,'Colour for normal arcs').
1262		preference_description(dot_node_font_size,'Font Size for Node labels').
1263		preference_description(dot_edge_font_size,'Font Size for Edge labels').
1264		preference_description(dot_with_page_size,'Limit page size by default (does not affect all dot graphs)').
1265		preference_description(dot_horizontal_layout,'Use horizontal layout by default (does not affect all dot graphs)').
1266		preference_description(dot_colour_goal_nodes,'Colour the nodes that satisfy the GOAL predicate').
1267		preference_description(dot_goal_node_colour,'Colour for nodes satisfying the GOAL predicate').
1268		preference_description(dot_print_node_properties,'Show properties of statespace node (useful for CSP models)').
1269		preference_description(dot_counterexample_node_colour,'Colour for counterexample nodes').
1270		preference_description(dot_counterexample_op_colour,'Colour for counterexample transitions').
1271		preference_description(dot_hierarchy_max_ids,'Max. number of identifiers shown in hierarchy view (-1 to show all)').
1272		preference_description(cbc_provide_explanations,'Provide explanations (unsat core,...) for some CBC commands').
1273
1274		preference_description(successful_rule_colour,'Colour of successful rules nodes').
1275		preference_description(failed_rule_colour,'Colour of failed rule nodes').
1276		preference_description(disabled_rule_colour,'Colour of disabled rule nodes').
1277		preference_description(not_checked_rule_colour,'Colour of not checked rule nodes').
1278		preference_description(rule_graph_shape,'Shape of rule nodes').
1279		preference_description(executed_computation_colour,'Colour of executed computation nodes').
1280		preference_description(not_executed_computation_colour,'Colour of not executed computation nodes').
1281		preference_description(disabled_computation_colour,'Colour of disabled computation nodes').
1282		preference_description(computation_graph_shape,'Shape of computation nodes').
1283		preference_description(succeeded_dependency_colour,'Colour of edges to succeeded dependencies').
1284		preference_description(failed_dependency_colour,'Colour of edges to failed dependencies').
1285		preference_description(normal_dependency_colour,'Colour of edges to executed dependencies').
1286
1287		preference_description(dot_event_hierarchy_horizontal,'Organize refinements horizontally').
1288		preference_description(dot_event_hierarchy_machine_colour,'Colour for machine event cluster').
1289		preference_description(dot_event_hierarchy_refines_colour,'Colour for events refining themselves (i.e., not renamed and modifying guard or action)').
1290		preference_description(dot_event_hierarchy_new_event_colour,'Colour for new events (not refining any event) or variables').
1291		preference_description(dot_event_hierarchy_rename_event_colour,'Colour for renamed events (with change in guard or action)').
1292		preference_description(dot_event_hierarchy_rename_unchanged_event_colour,'Colour for renamed unchanged events').
1293		preference_description(dot_event_hierarchy_unchanged_event_colour,'Colour for unchanged events (not renamed, no guards or actions added) or variables').
1294		preference_description(dot_event_hierarchy_grd_strengthening_event_colour,'Colour for events just adding a guard (not renamed, no actions added)').
1295		preference_description(dot_event_hierarchy_grd_keeping_event_colour,'Colour for events just changing an action (not renamed, keeping guard unchanged)').
1296		preference_description(dot_event_hierarchy_edge_colour,'Edge colour for refine relation').
1297		preference_description(dot_event_hierarchy_extends_colour,'Edge colour for extends relation').
1298		preference_description(dot_hierarchy_show_extra_detail,'Provide more details in hierarchy diagram (e.g., constants)').
1299
1300		preference_description(dot_projection_non_det_edge_colour,'Edge colour for deterministic edges').
1301		preference_description(dot_projection_det_edge_colour,'Edge colour for non-deterministic edges').
1302		preference_description(dot_projection_non_definite_edge_style,'Style for non-definite edges (solid,dashed,dotted,bold,invis)').
1303		preference_description(dot_projection_definite_edge_style,'Style for definite edges (solid,dashed,dotted,bold,invis)').
1304		preference_description(dot_projection_label_limit,'Max. nr of characters for node labels').
1305		preference_description(dot_projection_process_only_explored,'Project only on the explored nodes').
1306		preference_description(dot_use_unicode,'Use Unicode symbols for values and formulas').
1307		preference_description(dot_predicate_node_shape,'Shape for predicate nodes in formula trees').
1308		preference_description(dot_expression_node_shape,'Shape for expression nodes in formula trees').
1309		preference_description(dot_var_mod_hide_only_written,'Hide variables which are only written and not read in any guard').
1310
1311
1312		preference_description(mc_dc_default_level,'Default Predicate Expansion Level for MC/DC Coverage Analyses (0=no expansion, 1=only top level connective expanded,...)').
1313
1314		preference_description(dot_enabling_show_readwrites,'Show read/write info for enabling diagrams').
1315
1316		preference_description(dot_definitions_use_sub_graph,'Show expression-, predicate-, substitution-DEFINITIONS as sub-graphs').
1317		preference_description(dot_definitions_show_all,'Show all DEFINITIONS').
1318		preference_description(dot_state_graph_decompose,'Decompose sets and complex pairs into individual vertices').
1319
1320		preference_description(font_size,'Font size in main window').
1321		preference_description(font_name,'Font name in text editor').
1322		preference_description(font_size_only,'Font size in text editor').
1323		preference_description(use_font_size_for_columns,'Use font size also for columns (you need to reselect font size + Courier will be used)').
1324		preference_description(allow_source_code_editing,'Allow editing and saving of main B machine file').
1325		preference_description(show_line_numbers,'Show line numbers in main window').
1326		%preference_description(show_full_error_span,'Show also the end line and column in error messages').
1327		preference_description(highlight_brackets,'Highlights brackets').
1328		preference_description(highlight_current_line,'Highlights current line').
1329		preference_description(ask_when_content_changed,'Asking when file content changed from external program').
1330		preference_description(user_not_beginner,'User is not a beginner').
1331		preference_description(user_is_an_expert_with_accessto_source_distribution,'User is expert with access to source distribution of ProB').
1332		%preference_description(default_to_runtime_type_checking_on_startup_for_expert,'When starting up (in expert mode) turn runtime type checking on').
1333		preference_description(path_to_probe,'Path to Probe or other tool to view .csp files').
1334		preference_description(path_to_spin,'Path to Spin or other tool to view .prom files').
1335		preference_description(path_to_cspm,'Path to cspm to view and analyze .csp files.').
1336		preference_description(path_to_text_editor,'Path to external GUI text editor').
1337		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 ??!
1338		%preference_description(path_to_fuzz,'Path to the fuzz tool for ProZ').
1339		preference_description(path_to_fdr,'Path to the FDR2 tool').
1340		preference_description(path_to_csp_typechecker,'Path to a CSP type checking tool, such as refines from FDR3 (taking --typecheck as argument)').
1341		preference_description(path_to_bcomp,'Path to a bcomp (Atelier B Parser and type checker )').
1342		preference_description(path_to_java,'Path to the "java" command (in case java is not found on the PATH)').
1343		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)').
1344		preference_description(path_to_atb_krt,'Path to Atelier B Provers krt tool').
1345		preference_description(try_atb_provers,'Try Atelier B Provers for unknown SMTLIB specifications').
1346		preference_description(smtlib2b_arrays_as_sets,'Translate SMTLib boolean Arrays to B Sets (when processing .smt2 files)').
1347		preference_description(smtlib2b_cleanup_predicate,'Preprocess before solving SMTLib formulas (when processing .smt2 files)').
1348		preference_description(symbolic_mc_try_other_solvers,'Symbolic Model Checking: Try different solver / settings combinations').
1349		preference_description(number_of_recent_documents,'Number of recently opened file names memorised').
1350		preference_description(number_of_searched_patterns,'Number of recently searched patterns in text').
1351		preference_description(number_of_replaced_patterns,'Number of recently replaced patterns in text').
1352		preference_description(number_of_eval_history_elements,'Number of recently runs of commands in the eval window').
1353		preference_description(number_of_eval_csp_history_elements,'Number of recently runs of commands in the eval window').
1354		preference_description(number_of_checked_ltl_formulas,'Number of recently checked LTL formulas').
1355		preference_description(ltl_to_ba_tool,'Tool in lib/ directory for generating a Buechi automaton from LTL.').
1356		preference_description(path_to_clingo,'Path to clingo binary (for alternate constraint solving backend)').
1357
1358		preference_description(do_syntax_highlighting,'Enable Syntax Colour Highlighting').
1359		preference_description(sh_type_colour,'Colour of typing constructs: NAT,POW,... (red,green,... or rgb hex #ff00ff)').
1360		preference_description(sh_logical_colour,'Colour of logical operators: &,or,...').
1361		preference_description(sh_assignments_colour,'Colour of assignments: :=, <-- and strings').
1362		preference_description(sh_operators,'Colour of normal operators ran,dom,...').
1363		preference_description(sh_top_level_keywords,'Colour of top level keywords: MACHINE, INVARIANT,...').
1364		preference_description(sh_control_keywords,'Colour of control keywords: IF, CASE,...').
1365		%preference_description(sh_includes_keywords,'Colour of inclusion related keywords: USES,...').
1366		preference_description(sh_comments,'Colour of comments /* ... */').
1367		preference_description(sh_pragmas,'Colour of pragmas /*@ ... */').
1368		preference_description(sh_unsupported_background,'Background colour for unsupported features (closure,...)').
1369
1370		preference_description(expand_forall_upto,'When analysing predicates: max. domain size for expansion of forall').
1371		preference_description(double_evaluation_when_analysing,'Evaluate PREDICATES positively and negatively when analysing').
1372		preference_description(prob_safe_mode,'Perform additional safety checks, which can slow down ProB').
1373		preference_description(expand_avl_upto,'Max size for pretty-printing sets (-1 means no limit)').
1374		preference_description(show_bvisual_formula_functor_from,'Show prefix/infix operators in state view for formulas longer than (use -1 to disable feature):').
1375		preference_description(show_bvisual_proof_info_icons,'Show proof info icon in state view (currently only for Event-B):').
1376		preference_description(formula_tree_minimal_timeout,'Minimal time-out for formula tree visualisation to find solutions to quantified identifiers').
1377		preference_description(formula_tree_maximal_timeout,'Maximal time-out for formula tree visualisation to find solutions to quantified identifiers').
1378		preference_description(show_bvisual_formula_explanations,'Show explanation nodes in state view for certain formulas (e.g., <:, ...)').
1379		preference_description(show_function_tuples_in_property,'Show function tuples in state view or dot files (f(1)=2 instead of f={(1,2)})').
1380		preference_description(bugly_pp_scrambling,'Scramble identifiers when pretty-printing (BUGLY)').
1381		preference_description(pp_propositional_logic_mode,'Try and pretty-print formulas using propositional variables (A=TRUE will be printed as A)').
1382		preference_description(pp_wd_infos,'Pretty-print well-definedness information for formulas').
1383		preference_description(pp_with_terminal_colour,'Pretty-print values and formulas with terminal colour escape codes').
1384		preference_description(wd_ignore_external_funs,'Do not create (unprovable) WD PO for external functions with WD condition').
1385		preference_description(wd_skip_finite_pos,'Do not generate finite WD POs').
1386		preference_description(wd_analysis_for_animation,'Perform the WD analysis in the context of ProB animation (e.g., deferred sets considered finite)').
1387		preference_description(z3_solve_for_animation,'Perform SMT solving with Z3 in the context of ProB animation (e.g., deferred sets considered finite)').
1388		preference_description(add_wd_pos_for_z3,'Add well-definedness POs to constraints before translating to SMT-LIB').
1389		preference_description(do_not_print_wd_errors,'Do not print well-definedness (WD) errors on the console.').
1390
1391
1392		preference_description(allow_new_ops_in_refinement,'Allow introduction of new operations in refinements (automatically set to TRUE for SYSTEM machines)').
1393		preference_description(allow_local_operation_calls,'Allow to call operations in OPERATIONS section of same machine (operations in LOCAL_OPERATIONS of same machine can always be called)').
1394		preference_description(allow_operation_calls_in_expr,'Allow to call query operations in (some) expressions').
1395		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 ...)').
1396
1397
1398		preference_description(use_po,'Use PROOF information to restrict invariant checking to affected clauses.').
1399		%preference_description(use_po,'Restrict invariant checking to affected clauses. Also remove clauses that are proven (EventB)').
1400		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
1401		preference_description(try_operation_reuse_for_invariants,'Apply OPERATION_REUSE also to invariants (cache projected state space per invariant check)').
1402		preference_description(operation_reuse_setting,'real setting computed from OPERATION_REUSE').
1403		preference_description(randomise_operation_order,'Randomise order of operations when computing successor states.').
1404		% currently only alternates between normal and reverse order
1405		preference_description(randomise_enumeration_order,'Randomise enumeration of variables.').
1406		preference_description(perform_enumeration_order_analysis,'Perform enumeration order analysis within quantifiers, e.g., to detect identifiers that should not be enumerated').
1407		preference_description(set_rand,'Use a fix seed for random number generator. Allows to reproduce results.').
1408		preference_description(rand_seed,'Seed for Random Number Generator').
1409
1410		preference_description(machines_path,'Last open directory').
1411
1412		% Options for enabling/disabling the POR and PGE optimisations for Model Checking of B and Event-B models
1413		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).').
1414		preference_description(timeout_cbc_analysis,'Time out for computing independence and enable relations between operations.').
1415
1416		preference_description(alloy_use_implementable_integers,'Use INT (minint..maxint) for the translation from Alloy to B.').
1417		preference_description(alloy_scopeless_translation,'Do not set any scopes when translating an Alloy model to B (useful for proof assistants).').
1418		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.').
1419		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.').
1420
1421		preference_description(sequent_prover_rodin_mode, 'Attempt to apply certain proof rules as in Rodin for better replay, e.g. direct splitting of conjunctions after a goal rewrite.').
1422
1423		preference_description(use_scope_predicate,
1424		'Use SCOPE predicate (if defined) to restrict state space exploration for model checking and animation.').
1425		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
1426
1427		preference_description(por,'Type of Partial Order Reduction Technique (ample_sets, ample_sets2).').
1428		preference_description(por_heur,'Type of heuritic for choosing a valid ample set.').
1429		%preference_description(use_por_for_ltl,'Use Partial Order Reduction for LTL.').
1430		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
1431
1432		preference_description(enable_graph,'Option for using the enable graph module for partial order reduction.').
1433		preference_description(enable_graph_depth,'The depth of evaluating the weakest-preconditions along a path in an enable graph.').
1434
1435		preference_description(dependency_enable_predicates,'Compute in each state whether two events can disable each other.').
1436
1437		preference_description(filter_unused_constants,'Filter out unused constants (can interfere with VisB or other visualisations)').
1438		preference_description(translate_force_all_typing_infos,'Print all typing infos when pretty-printing').
1439		preference_description(translate_print_typing_infos,'Print needed typing infos when pretty-printing').
1440		preference_description(translate_print_frozen_infos,'Print Prolog frozen goal infos for unbound variables').
1441		preference_description(translate_ids_to_parseable_format,'Print Identifiers in a format that can be parsed again').
1442		preference_description(translate_suppress_rodin_positions_flag,'Suppres Rodin position information when pretty-printing').
1443		preference_description(translate_print_all_sequences,'Print B relations as sequences when possible during pretty-printing.').
1444		preference_description(translate_print_cs_style_sequences,'Print B sequences in theoretical CS style without separators.').
1445		% Note: also influenced by expand_avl_upto preference
1446		preference_description(translation_limit_for_table_commands,'Translation/pretty print limit for columns used by some table (CSV) commands').
1447		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
1448		preference_description(visb_show_debug_infos,'Show VisB debug information in title hovers').
1449
1450		preference_description(trace_generation_limit,'Max. number of traces generated').
1451		preference_description(trace_generation_time_out,'Timeout for trace generation').
1452
1453		preference_description(disprover_mode,'Assume that well-definedness is guaranteed or checked by other means (for Rodin DISPROVER Plugin)').
1454		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
1455		preference_description(trace_upon_error,'Trace upon error (requires running from source)').
1456		preference_description(error_log_file, 'File were all errors and warnings are logged (NDJSON format). Can be set to stderr or stdout.').
1457		preference_description(tlc_number_of_workers,'Number of parallel workers for external tool TLC (for -workers option)').
1458		preference_description(tlc_use_prob_constant_setup,'Use constants found by ProB for TLC model checking (for -constantssetup option)').
1459		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)').
1460
1461
1462		preference_description(port, 'First number to be used by parB/distb/ZMQ. Default: 5000').
1463		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.').
1464		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').
1465		preference_description(tmpdir, 'The directory where temporary files should be stored. Default: /tmp/.').
1466		preference_description(logdir, 'The directory where log files should be stored. Default: ./distb-logs/').
1467		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').
1468		preference_description(queue_threshold, 'The amount of states that may be kept in a ZMQ queue before it is allowed to share. Default: 20').
1469		preference_description(hash_cycle, 'Minimum amount of milliseconds that has to pass between hash code updates from the ZMQ master. Default: 25').
1470		preference_description(cdclt_perform_static_analysis, 'CDCL(T) Solver: Perform static analysis to infer implied constraints').
1471		preference_description(cdclt_perform_symmetry_breaking, 'CDCL(T) Solver: Perform symmetry breaking using BLISS (if installed)').
1472		preference_description(cdclt_use_idl_theory_solver, 'CDCL(T) Solver: Use additional IDL (Integer-Difference-Logic) solver').
1473		preference_description(prob_version_info,'Version of ProB (read-only preference)'). % mainly so that in ProB for Rodin we can see the version number
1474		preference_description(prob_revision_info,'Git revision of ProB (read-only preference)').
1475		preference_description(prob_lastchangedate_info,'Last change date of ProB source (read-only preference)').
1476
1477		preference_description(xtl_safe_mode,'Use runtime checking to make sure the predicates in XTL models are implemented correctly, the tradeoff is performance.').
1478
1479		/* ------------------------- */
1480
1481		:- use_module(pathes_extensions_db, [preference_value_requires_extension/3]).
1482		:- use_module(pathes_lib, [unavailable_extension/2]).
1483
1484		%preference_update_action(do_full_invariant_checking,_) :- !, b_types_precompile.
1485		%preference_change_requires_reload(enable_canonical_symmetry,true) :- !, .
1486		%preference_update_action(use_nauty_symmetry_reduction,true) :- !, graph_iso_nauty:nauty_init.
1487		%:- use_module(probsrc(bmachine),[bmachine_is_precompiled/0]).
1488		%:- use_module(probsrc(graph_iso_nauty),[nauty_init/0]).
1489		preference_update_action(Pref,Val) :-
1490	?	preference_value_requires_extension(Pref,Val,Extension),
1491		unavailable_extension(Extension,Reason),
1492		ajoin(['Value ', Val,' for preference ',Pref,
1493		' may lead to errors because extension not available (',Reason,'): '],Msg),
1494		add_warning(preferences,Msg,Extension),
1495		fail.
1496		preference_update_action(symmetry_mode,nauty) :- !,
1497		(bmachine:bmachine_is_precompiled -> graph_iso_nauty:nauty_init ; true).
1498		preference_update_action(_,_).
1499		% TODO: jvm_parser_position_infos : release_console_parser
1500
1501		/* ------------------------- */
1502
1503		% now in basic_tests.pl
1504		%:- assert_must_succeed( \+((preference_val_type(P,_D),\+preference_default_value(P,_Val)))).
1505		%:- assert_must_succeed( \+((preference_default_value(P,_D), \+preference_val_type(P,_Val)))).
1506		preference_val_type(maxint,nat1).
1507		preference_val_type(minint,neg).
1508		preference_val_type(number_animated_abstractions,nat).
1509		preference_val_type(number_skipped_refined_machines,nat).
1510		preference_val_type(globalsets_fdrange,nat).
1511		preference_val_type(do_invariant_checking,bool).
1512		preference_val_type(do_assert_checking,bool).
1513		preference_val_type(find_abort_values,xbool).
1514		preference_val_type(raise_abort_immediately,xbool).
1515		preference_val_type(treat_outermost_pre_as_select,bool).
1516		preference_val_type(require_operations_to_assign_all_outputs,bool).
1517		preference_val_type(allow_operations_to_read_outputs,bool).
1518		preference_val_type(allow_operation_calls_for_uses,bool).
1519		preference_val_type(allow_overriding_initialisation,bool).
1520		preference_val_type(allow_simultaneous_assignments,bool).
1521		preference_val_type(allow_arith_operators_on_reals,dbool).
1522		preference_val_type(solver_for_reals,[aggressive_float_solver,float_solver,none,precise_float_solver]).
1523		preference_val_type(cspm_animate_all_processes_without_arguments,bool).
1524		preference_val_type(cspm_animate_all_processes,bool).
1525		preference_val_type(cspm_detailed_animation,bool).
1526		preference_val_type(cspm_strip_source_location,bool).
1527		%preference_val_type(csp_event_visible_to_user,bool).
1528		preference_val_type(show_initialisation_arguments,bool).
1529		preference_val_type(deterministic_trace_replay,bool).
1530		preference_val_type(show_eventb_any_arguments,bool).
1531		preference_val_type(maxNrOfInitialisations,nat).
1532		%preference_val_type(randomisedRestartInitalisations,bool).
1533		preference_val_type(maxNrOfEnablingsPerOperation,nat).
1534		preference_val_type(time_out,nat1).
1535		preference_val_type(debug_time_out_factor,nat1).
1536		%preference_val_type(use_large_jvm_for_parser,bool).
1537		preference_val_type(jvm_parser_heap_size_mb,nat).
1538		preference_val_type(jvm_parser_additional_args,string).
1539		preference_val_type(jvm_parser_position_infos,bool).
1540		preference_val_type(jvm_parser_fastrw,bool).
1541		preference_val_type(jvm_parser_force_parsing,bool).
1542		preference_val_type(convert_comprehension_sets_into_closures,bool).
1543		preference_val_type(comprehension_set_symbolic_limit,nat).
1544		preference_val_type(use_clpfd_solver,bool).
1545		preference_val_type(clpfd_solver_label_option,labeling_option).
1546		preference_val_type(use_chr_solver,bool).
1547		preference_val_type(data_validation_mode,bool).
1548		preference_val_type(use_smt_mode,bool).
1549		preference_val_type(solver_strength,nat).
1550		preference_val_type(use_common_subexpression_elimination,bool).
1551		preference_val_type(remove_implied_constraints,bool).
1552		preference_val_type(lift_existential_quantifiers,bool).
1553		preference_val_type(use_common_subexpression_also_for_predicates,bool).
1554		preference_val_type(use_common_subexpression_also_for_substitutions,bool).
1555		preference_val_type(use_common_subexpression_wd_only,bool).
1556		preference_val_type(normalize_ast,bool).
1557		preference_val_type(normalize_ast_sort_commutative,bool).
1558		preference_val_type(optimize_ast,bool).
1559		%preference_val_type(optimize_enum_set_elems,bool).
1560		preference_val_type(useless_code_elimination,bool).
1561		preference_val_type(compile_while_body,bool).
1562		preference_val_type(expand_becomes_such_into_set,bool).
1563		preference_val_type(warn_about_failing_assignments,bool).
1564		preference_val_type(detect_lambdas,bool).
1565		preference_val_type(auto_detect_theory_ops,bool).
1566		preference_val_type(ltsmin_guard_splitting,bool).
1567		preference_val_type(ltsmin_do_not_evaluate_top_level_guards,xbool).
1568		preference_val_type(fail_if_clpfd_timeout,bool).
1569		%preference_val_type(allow_recursive_closures,bool).
1570		preference_val_type(use_static_ordering,bool).
1571		preference_val_type(try_use_state_packing,axbool).
1572		preference_val_type(use_state_packing,xbool).
1573		preference_val_type(force_state_packing_for_closures,bool).
1574		preference_val_type(provide_trace_information,bool).
1575		preference_val_type(prob_profiling_on,bool).
1576		preference_val_type(prob_source_profiling_on,bool).
1577		preference_val_type(performance_monitoring_on,bool).
1578		preference_val_type(performance_monitoring_expansion_limit,int).
1579		preference_val_type(partition_predicates,bool).
1580		preference_val_type(partition_predicates_inline_equalities,bool).
1581		preference_val_type(use_closure_expansion_memoization,bool).
1582		preference_val_type(use_function_memoization,dbool).
1583		preference_val_type(allow_incomplete_partial_setup_constants,bool).
1584		preference_val_type(re_execute_operations_with_side_effects,bool).
1585		preference_val_type(warn_if_definition_hides_variable,bool).
1586		preference_val_type(use_hygienic_definitions,bool).
1587		preference_val_type(type_check_definitions,bool).
1588		%preference_val_type(warn_when_expanding_infinite_closures,int).
1589		preference_val_type(allow_enumeration_of_infinite_types,bool).
1590		preference_val_type(strict_raise_warnings,bool).
1591		preference_val_type(strict_raise_enum_warnings,bool).
1592		preference_val_type(clash_strict_checks,bool).
1593		preference_val_type(perform_stricter_static_checks,bool).
1594		preference_val_type(ignore_prj_types,bool).
1595		preference_val_type(prefix_internal_operation_arguments,string).
1596		preference_val_type(generate_minimal_nr_of_testcases,bool).
1597		preference_val_type(use_tk_custom_state_viewer,bool).
1598		preference_val_type(tk_custom_state_viewer_font_name,string).
1599		preference_val_type(tk_custom_state_viewer_font_size,nat).
1600		preference_val_type(tk_custom_state_viewer_padding,nat).
1601		preference_val_type(tk_custom_state_viewer_str_padding,nat).
1602		preference_val_type(use_small_window,bool).
1603		preference_val_type(tk_show_source_pane,bool).
1604		preference_val_type(ignore_hash_collisions,bool).
1605		preference_val_type(forget_state_space,bool).
1606		preference_val_type(store_only_one_incoming_transition,bool).
1607		preference_val_type(mc_continue_after_error,bool).
1608		preference_val_type(symmetry_mode,[off,flood,nauty,hash]).
1609		preference_val_type(use_static_symmetry_detection,bool).
1610		%preference_val_type(bool_expression_as_predicate,bool).
1611		preference_val_type(allow_untyped_identifiers,[true,false,true_with_string_type]).
1612		preference_val_type(repl_unicode,bool).
1613		preference_val_type(repl_cache_parsing,bool).
1614		preference_val_type(cache_constants,bool).
1615		preference_val_type(cache_operations,bool).
1616		preference_val_type(cache_operations_runtime_limit,nat).
1617		preference_val_type(latex_encoding,text_encoding).
1618		preference_val_type(latex_pp_greek_ids,bool).
1619		preference_val_type(xml_encoding,text_encoding).
1620		preference_val_type(view_probcli_errors_using_bbresults,bool).
1621		preference_val_type(eventtrace,bool).
1622		preference_val_type(store_event_transinfo,bool).
1623		preference_val_type(use_solver_on_load,solver_name).
1624		%preference_val_type(try_kodkod_on_load,bool).
1625		preference_val_type(kodkod_for_components,xbool).
1626		preference_val_type(kodkod_raise_warnings,bool).
1627		preference_val_type(kodkod_max_nr_solutions,nat1).
1628		preference_val_type(kodkod_symmetry_level,nat).
1629		preference_val_type(kodkod_sat_solver,[sat4j,minisat,lingeling,glucose]).
1630		preference_val_type(smt_supported_interpreter,bool).
1631		preference_val_type(sat_supported_interpreter,bool).
1632		preference_val_type(use_record_construction,bool).
1633		preference_val_type(seen_machines_included,bool).
1634		preference_val_type(allow_sequence_operators_on_strings,bool).
1635
1636		preference_val_type(dot_print_node_ids,bool).
1637		preference_val_type(dot_print_transition_ids,bool).
1638		preference_val_type(dot_print_use_constants,bool).
1639		preference_val_type(dot_print_node_info,bool).
1640		preference_val_type(dot_print_edge_labels,bool).
1641		preference_val_type(dot_print_action_arguments,bool).
1642		preference_val_type(dot_print_functions,bool).
1643		preference_val_type(dot_print_self_loops,bool).
1644		preference_val_type(dot_print_root,bool).
1645		%preference_val_type(dot_print_leaves,bool).
1646		preference_val_type(dot_print_arc_colors,bool).
1647		preference_val_type(dot_use_ps_viewer,bool).
1648		preference_val_type(path_to_dot,path).
1649		preference_val_type(dot_default_engine,[dot,neato,sfdp,fdp,twopi,circo,patchwork,osage,nop,nop2]).
1650		preference_val_type(path_to_dotty,path).
1651		preference_val_type(path_to_ltsmin,path).
1652		preference_val_type(path_to_ps_viewer,path).
1653		preference_val_type(path_to_latex,path).
1654		preference_val_type(dot_root_shape,dot_shape).
1655		preference_val_type(dot_node_penwidth,nat).
1656		preference_val_type(dot_edge_penwidth,nat).
1657		preference_val_type(dot_normal_node_shape,dot_shape).
1658		preference_val_type(dot_current_node_shape,dot_shape).
1659		preference_val_type(dot_open_node_colour,rgb_color).
1660		preference_val_type(dot_scope_limit_node_colour,rgb_color).
1661		preference_val_type(dot_normal_node_colour,rgb_color).
1662		preference_val_type(dot_invariant_violated_node_colour,rgb_color).
1663		preference_val_type(dot_fill_normal_nodes,bool).
1664		preference_val_type(dot_normal_arc_colour,rgb_color).
1665		preference_val_type(dot_node_font_size,nat1).
1666		preference_val_type(dot_edge_font_size,nat1).
1667		preference_val_type(dot_with_page_size,bool).
1668		preference_val_type(dot_horizontal_layout,bool).
1669		preference_val_type(dot_colour_goal_nodes,bool).
1670		preference_val_type(dot_goal_node_colour,rgb_color).
1671		preference_val_type(dot_print_node_properties,bool).
1672		preference_val_type(dot_counterexample_node_colour,rgb_color).
1673		preference_val_type(dot_counterexample_op_colour,rgb_color).
1674		preference_val_type(dot_hierarchy_max_ids,int).
1675		preference_val_type(cbc_provide_explanations,bool).
1676
1677		preference_val_type(successful_rule_colour,rgb_color).
1678		preference_val_type(failed_rule_colour,rgb_color).
1679		preference_val_type(disabled_rule_colour,rgb_color).
1680		preference_val_type(not_checked_rule_colour,rgb_color).
1681		preference_val_type(rule_graph_shape,dot_shape).
1682		preference_val_type(executed_computation_colour,rgb_color).
1683		preference_val_type(not_executed_computation_colour,rgb_color).
1684		preference_val_type(disabled_computation_colour,rgb_color).
1685		preference_val_type(computation_graph_shape,dot_shape).
1686		preference_val_type(succeeded_dependency_colour,rgb_color).
1687		preference_val_type(failed_dependency_colour,rgb_color).
1688		preference_val_type(normal_dependency_colour,rgb_color).
1689
1690		preference_val_type(dot_event_hierarchy_horizontal,bool).
1691		preference_val_type(dot_event_hierarchy_machine_colour,rgb_color).
1692		preference_val_type(dot_event_hierarchy_refines_colour,rgb_color).
1693		preference_val_type(dot_event_hierarchy_new_event_colour,rgb_color).
1694		preference_val_type(dot_event_hierarchy_rename_event_colour,rgb_color).
1695		preference_val_type(dot_event_hierarchy_rename_unchanged_event_colour,rgb_color).
1696		preference_val_type(dot_event_hierarchy_unchanged_event_colour,rgb_color).
1697		preference_val_type(dot_event_hierarchy_grd_strengthening_event_colour,rgb_color).
1698		preference_val_type(dot_event_hierarchy_grd_keeping_event_colour,rgb_color).
1699		preference_val_type(dot_event_hierarchy_edge_colour,rgb_color).
1700		preference_val_type(dot_event_hierarchy_extends_colour,rgb_color).
1701		preference_val_type(dot_hierarchy_show_extra_detail,bool).
1702
1703		preference_val_type(dot_projection_non_det_edge_colour,rgb_color).
1704		preference_val_type(dot_projection_det_edge_colour,rgb_color).
1705		preference_val_type(dot_projection_non_definite_edge_style,dot_line_style).
1706		preference_val_type(dot_projection_definite_edge_style,dot_line_style).
1707		preference_val_type(dot_projection_label_limit,nat).
1708		preference_val_type(dot_projection_process_only_explored,bool).
1709		preference_val_type(dot_use_unicode,bool).
1710		preference_val_type(dot_predicate_node_shape,dot_shape).
1711		preference_val_type(dot_expression_node_shape,dot_shape).
1712		preference_val_type(dot_var_mod_hide_only_written,bool).
1713
1714		preference_val_type(mc_dc_default_level,nat).
1715
1716		preference_val_type(dot_enabling_show_readwrites,bool).
1717
1718		preference_val_type(dot_definitions_use_sub_graph,bool).
1719		preference_val_type(dot_definitions_show_all,bool).
1720		preference_val_type(dot_state_graph_decompose,bool).
1721
1722		preference_val_type(font_name,string).
1723		preference_val_type(font_size_only,nat1).
1724		preference_val_type(font_size,string).
1725		preference_val_type(use_font_size_for_columns,bool).
1726		preference_val_type(allow_source_code_editing,bool).
1727		preference_val_type(show_line_numbers,bool).
1728		%preference_val_type(show_full_error_span,bool).
1729		preference_val_type(highlight_brackets,bool).
1730		preference_val_type(highlight_current_line,bool).
1731		preference_val_type(ask_when_content_changed,bool).
1732
1733		preference_val_type(user_not_beginner,bool).
1734		preference_val_type(user_is_an_expert_with_accessto_source_distribution,bool).
1735		%preference_val_type(default_to_runtime_type_checking_on_startup_for_expert,bool).
1736		preference_val_type(path_to_probe,path).
1737		%preference_val_type(path_to_fuzz,path).
1738		preference_val_type(path_to_fdr,path).
1739		preference_val_type(path_to_csp_typechecker,path).
1740		preference_val_type(path_to_bcomp,path). % Atelier B parser & type checker
1741		preference_val_type(path_to_java,path). % Path to Java
1742		preference_val_type(path_to_java_parser,path). % Path to probcliparser.java or cliparser, default ''
1743		preference_val_type(path_to_atb_krt,path).
1744		preference_val_type(try_atb_provers,bool).
1745		preference_val_type(smtlib2b_arrays_as_sets,bool).
1746		preference_val_type(smtlib2b_cleanup_predicate,bool).
1747		preference_val_type(symbolic_mc_try_other_solvers,bool).
1748		preference_val_type(path_to_spin,path).
1749		preference_val_type(path_to_cspm,path).
1750		preference_val_type(path_to_text_editor,path).
1751		preference_val_type(path_to_text_editor_launch,path).
1752		preference_val_type(number_of_recent_documents,nat).
1753		preference_val_type(number_of_searched_patterns,nat).
1754		preference_val_type(number_of_replaced_patterns,nat).
1755		preference_val_type(number_of_eval_history_elements,nat).
1756		preference_val_type(number_of_eval_csp_history_elements,nat).
1757		preference_val_type(number_of_checked_ltl_formulas,nat).
1758		preference_val_type(ltl_to_ba_tool,path).
1759		preference_val_type(path_to_clingo,path).
1760
1761		preference_val_type(do_syntax_highlighting,bool).
1762		preference_val_type(sh_type_colour,rgb_color).
1763		preference_val_type(sh_logical_colour,rgb_color).
1764		preference_val_type(sh_assignments_colour,rgb_color).
1765		preference_val_type(sh_operators,rgb_color).
1766		preference_val_type(sh_top_level_keywords,rgb_color).
1767		preference_val_type(sh_control_keywords,rgb_color).
1768		%preference_val_type(sh_includes_keywords,rgb_color).
1769		preference_val_type(sh_comments,rgb_color).
1770		preference_val_type(sh_pragmas,rgb_color).
1771		preference_val_type(sh_unsupported_background,rgb_color).
1772
1773		preference_val_type(expand_forall_upto,nat).
1774		preference_val_type(double_evaluation_when_analysing,bool).
1775		preference_val_type(prob_safe_mode,bool).
1776		preference_val_type(expand_avl_upto,int).
1777		preference_val_type(show_bvisual_formula_functor_from,int).
1778		preference_val_type(show_bvisual_proof_info_icons,bool).
1779		preference_val_type(show_bvisual_formula_explanations,bool).
1780		preference_val_type(formula_tree_minimal_timeout,nat).
1781		preference_val_type(formula_tree_maximal_timeout,nat).
1782		preference_val_type(show_function_tuples_in_property,bool).
1783		preference_val_type(bugly_pp_scrambling,bool).
1784		preference_val_type(pp_propositional_logic_mode,bool).
1785		preference_val_type(pp_wd_infos,bool).
1786		preference_val_type(pp_with_terminal_colour,bool).
1787		preference_val_type(wd_ignore_external_funs,bool).
1788		preference_val_type(wd_skip_finite_pos,bool).
1789		preference_val_type(wd_analysis_for_animation,bool).
1790		preference_val_type(z3_solve_for_animation,bool).
1791		preference_val_type(add_wd_pos_for_z3,bool).
1792		preference_val_type(do_not_print_wd_errors,bool).
1793
1794		preference_val_type(allow_new_ops_in_refinement,bool).
1795		preference_val_type(allow_local_operation_calls,bool).
1796		preference_val_type(allow_operation_calls_in_expr,bool).
1797		preference_val_type(allow_let_to_reuse_introduced_ids,bool).
1798		preference_val_type(use_po,bool).
1799		preference_val_type(try_operation_reuse,axbool). % false,true,full,auto
1800		preference_val_type(try_operation_reuse_for_invariants,bool).
1801		preference_val_type(operation_reuse_setting,xbool).
1802		preference_val_type(randomise_operation_order,bool).
1803		preference_val_type(randomise_enumeration_order,bool).
1804		preference_val_type(perform_enumeration_order_analysis,bool).
1805
1806		preference_val_type(set_rand,bool).
1807		preference_val_type(rand_seed,nat).
1808
1809		preference_val_type(alloy_use_implementable_integers,bool).
1810		preference_val_type(alloy_scopeless_translation,bool).
1811		preference_val_type(alloy_translation_for_proof,bool).
1812		preference_val_type(alloy_strict_integers,bool).
1813
1814		preference_val_type(sequent_prover_rodin_mode,bool).
1815
1816		preference_val_type(use_scope_predicate,bool).
1817		preference_val_type(use_ignore_pragmas,bool).
1818		%% Options' meaning
1819		% disabled: skipping guard evaluation of actions known to be disabled at state
1820		% enabled: skipping guard evaluation of actions known to be enabled at state
1821		% full: skipping guard evaluations of actions known to be enabled or disabled at state
1822		% disabled2, enabled2, full2: same for these, but another (more precise) way for computing the sets of enabled and disabled actions is used
1823		%preference_val_type(pge,[off,disabled,enabled,full,disabled2,enabled2,full2]).
1824
1825		preference_val_type(use_cbc_analysis,bool).
1826		preference_val_type(timeout_cbc_analysis,nat1).
1827
1828		preference_val_type(por,[off,ample_sets,ample_sets2]).
1829		preference_val_type(por_heur,[first,random,minimal]).
1830		preference_val_type(use_safety_ltl_model_checker,bool).
1831
1832		preference_val_type(enable_graph,bool).
1833		preference_val_type(enable_graph_depth,int).
1834
1835		preference_val_type(dependency_enable_predicates,bool).
1836
1837		preference_val_type(filter_unused_constants,bool).
1838		preference_val_type(translate_force_all_typing_infos,bool).
1839		preference_val_type(translate_print_typing_infos,bool).
1840		preference_val_type(translate_print_frozen_infos,bool).
1841		preference_val_type(translate_ids_to_parseable_format,bool).
1842		preference_val_type(translate_suppress_rodin_positions_flag,bool).
1843		preference_val_type(translate_print_all_sequences,bool).
1844		preference_val_type(translate_print_cs_style_sequences,bool).
1845		preference_val_type(translation_limit_for_table_commands,int).
1846		preference_val_type(visb_allow_variables_for_objects,bool).
1847		preference_val_type(visb_show_debug_infos,bool).
1848		preference_val_type(trace_generation_limit,nat).
1849		preference_val_type(trace_generation_time_out,nat).
1850
1851
1852		preference_val_type(disprover_mode,bool).
1853		preference_val_type(allow_improving_wd_mode,bool).
1854		preference_val_type(trace_upon_error,bool).
1855		preference_val_type(tlc_number_of_workers,nat1).
1856		preference_val_type(tlc_use_prob_constant_setup,bool).
1857		preference_val_type(error_log_file,path).
1858
1859		preference_val_type(unsat_core_algorithm,[divide_and_conquer,linear,linear_greedy,linear_greedy_decompose]).
1860
1861		preference_val_type(port, nat1).
1862		preference_val_type(ip, string).
1863		preference_val_type(max_states, nat).
1864		preference_val_type(tmpdir, path).
1865		preference_val_type(logdir, path).
1866		preference_val_type(proxynumber, nat).
1867		preference_val_type(queue_threshold, nat1).
1868		preference_val_type(hash_cycle, nat).
1869		preference_val_type(cdclt_perform_static_analysis,bool).
1870		preference_val_type(cdclt_perform_symmetry_breaking,bool).
1871		preference_val_type(cdclt_use_idl_theory_solver,bool).
1872		preference_val_type(prob_version_info, string).
1873		preference_val_type(prob_revision_info, string).
1874		preference_val_type(prob_lastchangedate_info, string).
1875
1876		preference_val_type(xtl_safe_mode, bool).
1877
1878		preference_val_type(machines_path,path). %directory_path). % preference not so critical; default value may not exist
1879
1880
1881		% obtain list of all valid values, e.g. for ProB2-UI
1882		preference_val_type_list(Pref,ValList) :-
1883		preference_val_type(Pref,Type),
1884		val_list_for_type(Type,ValList).
1885
1886		val_list_for_type(Type,List) :- is_list(Type), !, Type=List.
1887		val_list_for_type(Type,List) :- list_valid_type_vals(Type,List), !.
1888		val_list_for_type(Type,List) :- pref_type_synonym(Type,List), !.
1889		val_list_for_type(Type,Type). % no enumeration of valid values possible - provide type name
1890
1891		list_valid_type_vals(axbool,[false,true,full,auto]).
1892		list_valid_type_vals(xbool,[false,true,full]).
1893		list_valid_type_vals(dbool,[default,false,true]). % maybe put these in pref_type_synonym
1894		list_valid_type_vals(dot_shape,Opt) :- findall(X,valid_dot_shape(X),Opt).
1895		list_valid_type_vals(dot_node_style,Opt) :- findall(X,valid_dot_node_style(X),Opt).
1896		list_valid_type_vals(dot_line_style,Opt) :- findall(X,valid_dot_line_style(X),Opt).
1897		list_valid_type_vals(labeling_option,[anti_first_fail,dom_w_deg,
1898		ff, % first_fail
1899		ffc, % most_constrained
1900		impact,leftmost,min,max,max_regret,occurrence]).
1901		/* ------------------------- */
1902
1903
1904		% now in basic_tests.pl
1905		%:- assert_must_succeed( \+((preference_category(P,_D),\+preference_default_value(P,_Val)))).
1906		%:- assert_must_succeed( \+((preference_default_value(P,_D), \+preference_category(P,_Val)))).
1907		preference_category(unsat_core_algorithm,advanced).
1908		preference_category(maxint,animation).
1909		preference_category(minint,animation).
1910		preference_category(globalsets_fdrange,animation).
1911		preference_category(do_invariant_checking,advanced).
1912		preference_category(do_assert_checking,advanced).
1913		%preference_category(do_full_invariant_checking,animation).
1914		%preference_category(use_new_kernel,advanced).
1915		preference_category(find_abort_values,animation).
1916		preference_category(raise_abort_immediately,advanced).
1917		preference_category(treat_outermost_pre_as_select,animation).
1918		preference_category(require_operations_to_assign_all_outputs,animation).
1919		preference_category(allow_operations_to_read_outputs,advanced).
1920		preference_category(allow_operation_calls_for_uses,advanced).
1921		preference_category(allow_overriding_initialisation,advanced).
1922		preference_category(allow_simultaneous_assignments,hidden). % only useful for loading and inspecting AST
1923		preference_category(allow_arith_operators_on_reals,advanced).
1924		preference_category(solver_for_reals,advanced).
1925		preference_category(cspm_animate_all_processes_without_arguments,csp_prefs).
1926		preference_category(cspm_animate_all_processes,csp_prefs).
1927		%preference_category(cspm_display_inout,csp_prefs).
1928		preference_category(cspm_detailed_animation,csp_prefs).
1929		preference_category(cspm_strip_source_location,csp_prefs).
1930		%preference_category(csp_event_visible_to_user,csp_prefs).
1931		%preference_category(cspm_allow_incomplete_records,csp_prefs).
1932		%preference_category(findOnlyOneSol,advanced).
1933		preference_category(show_eventb_any_arguments,animation).
1934		preference_category(maxNrOfInitialisations,animation).
1935		%preference_category(randomisedRestartInitalisations,advanced).
1936		preference_category(maxNrOfEnablingsPerOperation,animation).
1937		preference_category(time_out,animation).
1938		preference_category(number_animated_abstractions,animation).
1939		preference_category(number_skipped_refined_machines,animation).
1940		preference_category(show_initialisation_arguments,animation).
1941		preference_category(deterministic_trace_replay,hidden).
1942		%preference_category(animate_skip_operations,animation).
1943		preference_category(debug_time_out_factor,advanced).
1944		%preference_category(use_large_jvm_for_parser,advanced).
1945		preference_category(jvm_parser_heap_size_mb,advanced).
1946		preference_category(jvm_parser_additional_args,advanced).
1947		preference_category(jvm_parser_position_infos,advanced).
1948		preference_category(jvm_parser_fastrw,hidden).
1949		preference_category(jvm_parser_force_parsing,bool).
1950		preference_category(convert_comprehension_sets_into_closures,animation).
1951		preference_category(comprehension_set_symbolic_limit,animation).
1952		preference_category(use_clpfd_solver,animation).
1953		preference_category(clpfd_solver_label_option,advanced).
1954		preference_category(use_chr_solver,animation).
1955		preference_category(data_validation_mode,advanced).
1956		preference_category(use_smt_mode,advanced).
1957		preference_category(solver_strength,advanced).
1958		preference_category(use_common_subexpression_elimination,advanced).
1959		preference_category(remove_implied_constraints,advanced).
1960		preference_category(lift_existential_quantifiers,advanced).
1961		preference_category(use_common_subexpression_also_for_predicates,advanced).
1962		preference_category(use_common_subexpression_also_for_substitutions,advanced).
1963		preference_category(use_common_subexpression_wd_only,advanced).
1964		preference_category(normalize_ast,hidden).
1965		preference_category(normalize_ast_sort_commutative,hidden).
1966		preference_category(optimize_ast,advanced).
1967		%preference_category(optimize_enum_set_elems,hidden).
1968		preference_category(useless_code_elimination,advanced).
1969		preference_category(compile_while_body,advanced).
1970		preference_category(expand_becomes_such_into_set,advanced).
1971		preference_category(warn_about_failing_assignments,advanced).
1972		preference_category(detect_lambdas,advanced).
1973		preference_category(auto_detect_theory_ops,advanced).
1974		preference_category(ltsmin_guard_splitting,hidden).
1975		preference_category(ltsmin_do_not_evaluate_top_level_guards,hidden).
1976		preference_category(fail_if_clpfd_timeout,advanced).
1977		%preference_category(allow_recursive_closures,hidden).
1978		preference_category(use_static_ordering,advanced).
1979		preference_category(try_use_state_packing,advanced).
1980		preference_category(use_state_packing,hidden). % derived from try_use_state_packing
1981		preference_category(force_state_packing_for_closures,hidden).
1982		preference_category(provide_trace_information,advanced).
1983		preference_category(prob_profiling_on,advanced).
1984		preference_category(prob_source_profiling_on,advanced).
1985		preference_category(performance_monitoring_on,advanced).
1986		preference_category(performance_monitoring_expansion_limit,advanced).
1987		preference_category(partition_predicates,advanced).
1988		preference_category(partition_predicates_inline_equalities,advanced).
1989		preference_category(use_closure_expansion_memoization,advanced).
1990		preference_category(use_function_memoization,advanced).
1991		preference_category(allow_incomplete_partial_setup_constants,advanced).
1992		preference_category(re_execute_operations_with_side_effects,advanced).
1993		preference_category(warn_if_definition_hides_variable,advanced).
1994		preference_category(use_hygienic_definitions,advanced).
1995		preference_category(type_check_definitions,advanced).
1996		%preference_category(warn_when_expanding_infinite_closures,advanced).
1997		preference_category(allow_enumeration_of_infinite_types,advanced).
1998		preference_category(strict_raise_warnings,advanced).
1999		preference_category(strict_raise_enum_warnings,hidden). % only for testing
2000		preference_category(clash_strict_checks,advanced).
2001		preference_category(perform_stricter_static_checks,hidden). % set by prob
2002		preference_category(ignore_prj_types,advanced).
2003		%preference_category(never_convert_closures_into_explicit_form,hidden).
2004		%preference_category(convert_types_into_closures,animation).
2005		%preference_category(convert_closures_into_explicit_form_for_store,animation).
2006		%preference_category(allow_empty_global_sets,advanced).
2007		preference_category(ignore_hash_collisions,advanced).
2008		preference_category(forget_state_space,advanced).
2009		preference_category(store_only_one_incoming_transition,advanced).
2010		preference_category(mc_continue_after_error,hidden).
2011		%preference_category(enable_permutation_reducation,advanced).
2012		%preference_category(use_symmetry_marker_hash,advanced).
2013		%preference_category(enable_canonical_symmetry,advanced).
2014		%preference_category(use_nauty_symmetry_reduction,advanced).
2015		preference_category(symmetry_mode,hidden).
2016		preference_category(use_static_symmetry_detection,advanced).
2017		%preference_category(bool_expression_as_predicate,hidden).
2018		preference_category(allow_untyped_identifiers,hidden).
2019		preference_category(repl_unicode,syntax_highlighting).
2020		preference_category(repl_cache_parsing,hidden).
2021		preference_category(cache_constants,hidden).
2022		preference_category(cache_operations,hidden).
2023		preference_category(cache_operations_runtime_limit,hidden).
2024		preference_category(latex_encoding,latex).
2025		preference_category(latex_pp_greek_ids,latex).
2026		preference_category(xml_encoding,hidden).
2027		preference_category(view_probcli_errors_using_bbresults,hidden).
2028		preference_category(eventtrace,animation).
2029		preference_category(store_event_transinfo,hidden). % automatically set by probcli
2030		preference_category(use_solver_on_load,hidden). % hidden for the moment
2031		%preference_category(try_kodkod_on_load,hidden).
2032		preference_category(kodkod_for_components,advanced).
2033		preference_category(kodkod_raise_warnings,advanced).
2034		preference_category(kodkod_max_nr_solutions,advanced).
2035		preference_category(kodkod_symmetry_level,advanced).
2036		preference_category(kodkod_sat_solver,advanced).
2037		preference_category(smt_supported_interpreter,advanced).
2038		preference_category(sat_supported_interpreter,advanced).
2039		preference_category(use_record_construction,advanced).
2040		preference_category(seen_machines_included,animation).
2041		preference_category(allow_sequence_operators_on_strings,animation).
2042
2043		%preference_category(test_case_gen_stop_at_first_error,advanced).
2044		preference_category(prefix_internal_operation_arguments,advanced).
2045		preference_category(generate_minimal_nr_of_testcases,advanced).
2046		preference_category(use_tk_custom_state_viewer,hidden). % actually : if user wants to turn it off; simply do not define ANIMATION_FUNCTION
2047		preference_category(tk_custom_state_viewer_font_name,hidden).
2048		preference_category(tk_custom_state_viewer_font_size,hidden).
2049		preference_category(tk_custom_state_viewer_padding,animation).
2050		preference_category(tk_custom_state_viewer_str_padding,animation).
2051		preference_category(use_small_window,animation).
2052		preference_category(tk_show_source_pane,animation).
2053
2054		preference_category(path_to_ltsmin,advanced).
2055
2056
2057		preference_category(dot_print_node_ids,dot).
2058		preference_category(dot_print_transition_ids,dot).
2059		preference_category(dot_print_use_constants,dot).
2060		preference_category(dot_print_node_info,dot).
2061		preference_category(dot_print_edge_labels,dot).
2062		preference_category(dot_print_action_arguments,dot).
2063		preference_category(dot_print_functions,dot).
2064		preference_category(dot_print_self_loops,dot).
2065		preference_category(dot_print_root,dot).
2066		%preference_category(dot_print_leaves,dot).
2067		preference_category(dot_print_arc_colors,dot).
2068		preference_category(dot_use_ps_viewer,hidden).
2069		preference_category(path_to_dotty,dot).
2070		preference_category(path_to_dot,dot).
2071		preference_category(dot_default_engine,dot).
2072		preference_category(path_to_ps_viewer,dot).
2073		preference_category(dot_root_shape,dot).
2074		preference_category(dot_node_penwidth,dot).
2075		preference_category(dot_edge_penwidth,dot).
2076		preference_category(dot_normal_node_shape,dot).
2077		preference_category(dot_current_node_shape,dot).
2078		preference_category(dot_open_node_colour,dot).
2079		preference_category(dot_scope_limit_node_colour,dot).
2080		preference_category(dot_normal_node_colour,dot).
2081		preference_category(dot_invariant_violated_node_colour,dot).
2082		preference_category(dot_fill_normal_nodes,dot).
2083		preference_category(dot_normal_arc_colour,dot).
2084
2085		%preference_category(dot_font_size,hidden).
2086		preference_category(dot_node_font_size,dot).
2087		preference_category(dot_edge_font_size,dot).
2088		preference_category(dot_with_page_size,dot).
2089		preference_category(dot_horizontal_layout,dot).
2090		preference_category(dot_colour_goal_nodes,dot).
2091		preference_category(dot_goal_node_colour,dot).
2092		preference_category(dot_print_node_properties,dot).
2093		preference_category(dot_counterexample_node_colour,dot).
2094		preference_category(dot_counterexample_op_colour,dot).
2095
2096		% preferences used by rule_validation.pl for rule dependency graph:
2097		preference_category(successful_rule_colour,rule_dependency_graph).
2098		preference_category(failed_rule_colour,rule_dependency_graph).
2099		preference_category(disabled_rule_colour,rule_dependency_graph).
2100		preference_category(not_checked_rule_colour,rule_dependency_graph).
2101		preference_category(rule_graph_shape,rule_dependency_graph).
2102		preference_category(executed_computation_colour,rule_dependency_graph).
2103		preference_category(not_executed_computation_colour,rule_dependency_graph).
2104		preference_category(disabled_computation_colour,rule_dependency_graph).
2105		preference_category(computation_graph_shape,rule_dependency_graph).
2106		preference_category(succeeded_dependency_colour,rule_dependency_graph).
2107		preference_category(failed_dependency_colour,rule_dependency_graph).
2108		preference_category(normal_dependency_colour,rule_dependency_graph).
2109
2110		preference_category(dot_event_hierarchy_horizontal,dot_event_hierarchy).
2111		preference_category(dot_event_hierarchy_machine_colour,dot_event_hierarchy).
2112		preference_category(dot_event_hierarchy_refines_colour,dot_event_hierarchy).
2113		preference_category(dot_event_hierarchy_new_event_colour,dot_event_hierarchy).
2114		preference_category(dot_event_hierarchy_rename_event_colour,dot_event_hierarchy).
2115		preference_category(dot_event_hierarchy_unchanged_event_colour,dot_event_hierarchy).
2116		preference_category(dot_event_hierarchy_rename_unchanged_event_colour,dot_event_hierarchy).
2117		preference_category(dot_event_hierarchy_grd_strengthening_event_colour,dot_event_hierarchy).
2118		preference_category(dot_event_hierarchy_grd_keeping_event_colour,dot_event_hierarchy).
2119		preference_category(dot_event_hierarchy_edge_colour,dot_event_hierarchy).
2120		preference_category(dot_event_hierarchy_extends_colour,dot_event_hierarchy).
2121		preference_category(dot_hierarchy_show_extra_detail,dot_event_hierarchy).
2122
2123
2124		preference_category(dot_projection_non_det_edge_colour,dot_projection).
2125		preference_category(dot_projection_det_edge_colour,dot_projection).
2126		preference_category(dot_projection_non_definite_edge_style,dot_projection).
2127		preference_category(dot_projection_definite_edge_style,dot_projection).
2128		preference_category(dot_projection_label_limit,dot_projection).
2129		preference_category(dot_projection_process_only_explored,dot_projection).
2130		preference_category(dot_use_unicode,dot_projection).
2131
2132		preference_category(dot_predicate_node_shape,dot_formula_tree).
2133		preference_category(dot_expression_node_shape,dot_formula_tree).
2134		preference_category(dot_var_mod_hide_only_written,dot_variable_modification).
2135
2136		preference_category(mc_dc_default_level,mc_dc_commands).
2137
2138		preference_category(dot_enabling_show_readwrites,dot).
2139
2140		preference_category(dot_definitions_use_sub_graph,dot_definitions).
2141		preference_category(dot_definitions_show_all,dot_definitions).
2142
2143		preference_category(dot_state_graph_decompose,dot_state_graph).
2144
2145		preference_category(dot_hierarchy_max_ids,dot_machine_hierarchy).
2146		preference_category(cbc_provide_explanations,cbc_commands).
2147
2148		preference_category(font_size,gui_prefs).
2149		preference_category(font_name,gui_prefs).
2150		preference_category(font_size_only,gui_prefs).
2151		preference_category(use_font_size_for_columns,advanced).
2152		preference_category(allow_source_code_editing,gui_prefs).
2153		preference_category(show_line_numbers,gui_prefs).
2154		preference_category(highlight_brackets,gui_prefs).
2155		preference_category(highlight_current_line,gui_prefs).
2156		preference_category(ask_when_content_changed,gui_prefs).
2157		preference_category(user_not_beginner,gui_prefs).
2158
2159		preference_category(user_is_an_expert_with_accessto_source_distribution,hidden).
2160		%preference_category(default_to_runtime_type_checking_on_startup_for_expert,hidden).
2161		preference_category(path_to_probe,csp_prefs).
2162		%preference_category(path_to_fuzz,advanced).
2163		preference_category(path_to_fdr,csp_prefs).
2164		preference_category(path_to_csp_typechecker,csp_prefs).
2165		preference_category(path_to_bcomp,advanced).
2166		preference_category(path_to_java,advanced).
2167		preference_category(path_to_java_parser,hidden).
2168		preference_category(path_to_atb_krt,advanced). % not yet used from within ProB Tcl/Tk, ...
2169		preference_category(try_atb_provers,advanced).
2170		preference_category(smtlib2b_arrays_as_sets,smtlib2b).
2171		preference_category(smtlib2b_cleanup_predicate,smtlib2b).
2172		preference_category(symbolic_mc_try_other_solvers,advanced).
2173		preference_category(path_to_spin,advanced).
2174		preference_category(path_to_cspm,advanced).
2175		preference_category(path_to_text_editor,advanced).
2176		preference_category(path_to_text_editor_launch,hidden).
2177		preference_category(number_of_recent_documents,advanced).
2178		preference_category(number_of_searched_patterns,advanced).
2179		preference_category(number_of_replaced_patterns,advanced).
2180		preference_category(number_of_eval_history_elements,advanced).
2181		preference_category(number_of_eval_csp_history_elements,advanced).
2182		preference_category(number_of_checked_ltl_formulas,advanced).
2183		preference_category(allow_new_ops_in_refinement,advanced).
2184		preference_category(allow_local_operation_calls,advanced).
2185		preference_category(allow_operation_calls_in_expr,advanced).
2186		preference_category(allow_let_to_reuse_introduced_ids,advanced).
2187		preference_category(use_po,advanced).
2188		preference_category(try_operation_reuse,advanced).
2189		preference_category(try_operation_reuse_for_invariants,advanced).
2190		preference_category(operation_reuse_setting,hidden).
2191		preference_category(randomise_operation_order,advanced).
2192		preference_category(randomise_enumeration_order,advanced).
2193		preference_category(perform_enumeration_order_analysis,advanced).
2194		preference_category(set_rand,advanced).
2195		preference_category(rand_seed,advanced).
2196		preference_category(ltl_to_ba_tool,advanced).
2197		preference_category(path_to_clingo,advanced).
2198
2199		preference_category(do_syntax_highlighting,syntax_highlighting).
2200		preference_category(sh_type_colour,syntax_highlighting).
2201		preference_category(sh_logical_colour,syntax_highlighting).
2202		preference_category(sh_assignments_colour,syntax_highlighting).
2203		preference_category(sh_operators,syntax_highlighting).
2204		preference_category(sh_top_level_keywords,syntax_highlighting).
2205		preference_category(sh_control_keywords,syntax_highlighting).
2206		%preference_category(sh_includes_keywords,syntax_highlighting).
2207		preference_category(sh_comments,syntax_highlighting).
2208		preference_category(sh_pragmas,syntax_highlighting).
2209		preference_category(sh_unsupported_background,syntax_highlighting).
2210
2211		preference_category(expand_forall_upto,advanced).
2212		preference_category(double_evaluation_when_analysing,advanced).
2213		preference_category(prob_safe_mode,advanced).
2214		preference_category(expand_avl_upto,advanced).
2215		preference_category(show_bvisual_formula_functor_from,advanced).
2216		preference_category(show_bvisual_proof_info_icons,advanced).
2217		preference_category(show_bvisual_formula_explanations,advanced).
2218		preference_category(formula_tree_minimal_timeout,dot_formula_tree).
2219		preference_category(formula_tree_maximal_timeout,dot_formula_tree).
2220		preference_category(show_function_tuples_in_property,animation).
2221		preference_category(bugly_pp_scrambling,advanced).
2222		preference_category(pp_propositional_logic_mode,hidden).
2223		preference_category(pp_wd_infos,hidden).
2224		preference_category(pp_with_terminal_colour,hidden).
2225		preference_category(wd_ignore_external_funs,wd_analyser).
2226		preference_category(wd_skip_finite_pos,wd_analyser).
2227		preference_category(wd_analysis_for_animation,wd_analyser).
2228		preference_category(z3_solve_for_animation,advanced).
2229		preference_category(add_wd_pos_for_z3,advanced).
2230		preference_category(do_not_print_wd_errors,hidden). % set by unsat core or by solver_interface
2231		%preference_category(show_full_error_span,hidden).
2232
2233		preference_category(machines_path,hidden).
2234
2235		preference_category(alloy_use_implementable_integers,alloy2b).
2236		preference_category(alloy_scopeless_translation,alloy2b).
2237		preference_category(alloy_translation_for_proof,alloy2b).
2238		preference_category(alloy_strict_integers,alloy2b).
2239
2240		preference_category(sequent_prover_rodin_mode,sequent_prover).
2241
2242		/* Partial techniques for optimising the Model Checker */
2243
2244		preference_category(use_scope_predicate,advanced).
2245		preference_category(use_ignore_pragmas,advanced).
2246		%preference_category(pge,model_checker).
2247
2248		preference_category(use_cbc_analysis,advanced). % for por
2249		preference_category(timeout_cbc_analysis,advanced).
2250		preference_category(por,model_checker).
2251		preference_category(por_heur,model_checker).
2252		preference_category(use_safety_ltl_model_checker,model_checker).
2253		preference_category(enable_graph,model_checker).
2254		preference_category(enable_graph_depth,model_checker).
2255		preference_category(dependency_enable_predicates,model_checker).
2256
2257		preference_category(path_to_latex,latex).
2258
2259		%------------------------------------
2260
2261		preference_category(filter_unused_constants,advanced).
2262		preference_category(translate_force_all_typing_infos,hidden).
2263		preference_category(translate_print_typing_infos,hidden).
2264		preference_category(translate_print_frozen_infos,hidden).
2265		preference_category(translate_ids_to_parseable_format,hidden).
2266		preference_category(translate_suppress_rodin_positions_flag,hidden).
2267		preference_category(translate_print_all_sequences,hidden).
2268		preference_category(translate_print_cs_style_sequences,hidden).
2269
2270		preference_category(translation_limit_for_table_commands,wd_commands).
2271		preference_category(visb_allow_variables_for_objects,visb).
2272		preference_category(visb_show_debug_infos,visb).
2273
2274		preference_category(trace_generation_limit,trace_generator).
2275		preference_category(trace_generation_time_out,trace_generator).
2276
2277		preference_category(disprover_mode,advanced).
2278		preference_category(allow_improving_wd_mode,hidden).
2279		preference_category(trace_upon_error,hidden).
2280		preference_category(error_log_file,advanced).
2281		preference_category(tlc_number_of_workers,hidden).
2282		preference_category(tlc_use_prob_constant_setup,hidden).
2283
2284		preference_category(port, distb).
2285		preference_category(ip, distb).
2286		preference_category(max_states, distb).
2287		preference_category(tmpdir, distb).
2288		preference_category(logdir, distb).
2289		preference_category(proxynumber, distb).
2290		preference_category(queue_threshold, distb).
2291		preference_category(hash_cycle, distb).
2292
2293		preference_category(cdclt_perform_static_analysis, cdclt).
2294		preference_category(cdclt_perform_symmetry_breaking, cdclt).
2295		preference_category(cdclt_use_idl_theory_solver,cdclt).
2296
2297		preference_category(prob_version_info,hidden).
2298		preference_category(prob_revision_info, hidden).
2299		preference_category(prob_lastchangedate_info, hidden).
2300
2301		preference_category(xtl_safe_mode,hidden).
2302
2303		/* ------------------------- */
2304
2305		% secondary, alternate additional categories:
2306		alternate_preference_category(dot_print_node_ids,dot_state_space).
2307		alternate_preference_category(dot_print_transition_ids,dot_state_space).
2308		alternate_preference_category(dot_print_use_constants,dot_state_space). %?
2309		alternate_preference_category(dot_print_node_info,dot_state_space).
2310		alternate_preference_category(dot_print_edge_labels,dot_state_space).
2311		alternate_preference_category(dot_print_action_arguments,dot_state_space).
2312		alternate_preference_category(dot_print_functions,dot_state_space).
2313		alternate_preference_category(dot_print_self_loops,dot_state_space).
2314		alternate_preference_category(dot_print_root,dot_state_space).
2315		alternate_preference_category(dot_print_arc_colors,dot_state_space).
2316		alternate_preference_category(dot_root_shape,dot_state_space).
2317		alternate_preference_category(dot_node_penwidth,dot_state_space).
2318		alternate_preference_category(dot_edge_penwidth,dot_state_space).
2319		alternate_preference_category(dot_normal_node_shape,dot_state_space).
2320		alternate_preference_category(dot_current_node_shape,dot_state_space).
2321		alternate_preference_category(dot_open_node_colour,dot_state_space).
2322		alternate_preference_category(dot_scope_limit_node_colour,dot_state_space).
2323		alternate_preference_category(dot_normal_node_colour,dot_state_space).
2324		alternate_preference_category(dot_invariant_violated_node_colour,dot_state_space).
2325		alternate_preference_category(dot_fill_normal_nodes,dot_state_space).
2326		alternate_preference_category(dot_normal_arc_colour,dot_state_space).
2327		alternate_preference_category(dot_node_font_size,dot_state_space).
2328		alternate_preference_category(dot_edge_font_size,dot_state_space).
2329		alternate_preference_category(dot_colour_goal_nodes,dot_state_space).
2330		alternate_preference_category(dot_goal_node_colour,dot_state_space).
2331		alternate_preference_category(dot_print_node_properties,dot_state_space).
2332		alternate_preference_category(dot_horizontal_layout,dot_state_space).
2333
2334		alternate_preference_category(dot_use_unicode,dot_formula_tree).
2335
2336		alternate_preference_category(dot_event_hierarchy_unchanged_event_colour,dot_variable_hierarchy).
2337		alternate_preference_category(dot_event_hierarchy_new_event_colour,dot_variable_hierarchy).
2338		alternate_preference_category(dot_event_hierarchy_edge_colour,dot_variable_hierarchy).
2339		alternate_preference_category(dot_hierarchy_show_extra_detail,dot_variable_hierarchy).
2340
2341		% these commands for the graph_canon / state_as_dot_graph state_graph:
2342		alternate_preference_category(dot_normal_node_shape,state_as_graph).
2343		alternate_preference_category(dot_state_graph_decompose,state_as_graph).
2344		%alternate_preference_category(dot_with_page_size,state_as_graph).
2345		alternate_preference_category(dot_horizontal_layout,state_as_graph).
2346
2347		% these commands use the dot_graph_generator:
2348		alternate_preference_category(X,dot_variable_modification) :- alternate_preference_category(X,dot_graph_generator).
2349		alternate_preference_category(X,dot_event_hierarchy) :- alternate_preference_category(X,dot_graph_generator).
2350		alternate_preference_category(X,dot_variable_hierarchy) :- alternate_preference_category(X,dot_graph_generator).
2351		alternate_preference_category(X,dot_projection) :- alternate_preference_category(X,dot_graph_generator).
2352		alternate_preference_category(dot_print_self_loops,dot_projection).
2353		alternate_preference_category(X,dot_definitions) :- alternate_preference_category(X,dot_graph_generator).
2354		alternate_preference_category(timeout_cbc_analysis,dot_enable_graph).
2355		alternate_preference_category(X,dot_enable_graph) :- alternate_preference_category(X,dot_graph_generator).
2356
2357		% preferences used by dot_graph_generator.pl:
2358		alternate_preference_category(dot_print_self_loops,dot_graph_generator).
2359		alternate_preference_category(dot_print_arc_colors,dot_graph_generator).
2360		alternate_preference_category(dot_node_font_size,dot_graph_generator).
2361		alternate_preference_category(dot_edge_font_size,dot_graph_generator).
2362		alternate_preference_category(dot_edge_penwidth,dot_graph_generator).
2363		alternate_preference_category(dot_with_page_size,dot_graph_generator).
2364		alternate_preference_category(dot_horizontal_layout,dot_graph_generator).
2365		alternate_preference_category(dot_default_engine,dot_graph_generator).
2366		alternate_preference_category(path_to_dot,dot_graph_generator).
2367
2368		alternate_preference_category(translation_limit_for_table_commands,cbc_commands).
2369		alternate_preference_category(translation_limit_for_table_commands,table_commands).
2370
2371		/* ------------------------- */
2372		% now in basic_tests.pl
2373		%:- assert_must_succeed( \+((preferences:obsolete_preference(P),preference_default_value(P,_Val)))).
2374		obsolete_preference(randomisedRestartInitalisations).
2375		obsolete_preference(optimize_enum_set_elems).
2376		obsolete_preference(warn_when_expanding_infinite_closures).
2377		obsolete_preference(do_neginvariant_checking). % use double_evaluation_when_analysing
2378		obsolete_preference(check_prolog_b_ast).
2379		obsolete_preference(use_large_jvm_for_parser).
2380		obsolete_preference(default_to_runtime_type_checking_on_startup_for_expert).
2381		obsolete_preference(animate_skip_operations).
2382		obsolete_preference(debug_try_minimise).
2383		obsolete_preference(convert_types_into_closures).
2384		obsolete_preference(use_avl_trees_for_sets).
2385		obsolete_preference(dot_font_size).
2386		obsolete_preference(only_label_base_types).
2387		obsolete_preference(use_new_kernel).
2388		obsolete_preference(findOnlyOneSol).
2389		obsolete_preference(enable_permutation_reducation).
2390		obsolete_preference(use_symmetry_marker_hash).
2391		obsolete_preference(enable_canonical_symmetry).
2392		obsolete_preference(use_nauty_symmetry_reduction).
2393		obsolete_preference(do_full_invariant_checking).
2394		obsolete_preference(test_case_gen_stop_at_first_error).
2395		obsolete_preference(use_failure_refinement).
2396		obsolete_preference(do_on_the_fly_refinement).
2397		obsolete_preference(never_convert_closures_into_explicit_form).
2398		obsolete_preference(allow_empty_global_sets).
2399		obsolete_preference(multilevel_animation).
2400		obsolete_preference(remove_multilevel_prefix).
2401		obsolete_preference(cspm_allow_incomplete_records).
2402		obsolete_preference(cspm_display_inout).
2403		obsolete_preference(allow_recursive_closures).
2404		obsolete_preference(absint_abstract_domain_module).
2405		obsolete_preference(absint_use_widening).
2406		obsolete_preference(absint_soft_widening).
2407		obsolete_preference(absint_extrapolation_threshold).
2408		obsolete_preference(convert_closures_into_explicit_form_for_store).
2409		obsolete_preference(use_por).
2410		obsolete_preference(use_pge).
2411		obsolete_preference(pge_dis).
2412		obsolete_preference(pge_ind).
2413		obsolete_preference(pge_keep).
2414		obsolete_preference(pge).
2415		obsolete_preference(use_pge_keep).
2416		obsolete_preference(use_pge_dis).
2417		obsolete_preference(use_pge_ind).
2418		obsolete_preference(selected_bparser).
2419		obsolete_preference(dot_print_leaves).
2420		obsolete_preference(csp_event_visible_to_user).
2421		obsolete_preference(path_to_fuzz).
2422		obsolete_preference(use_optimistic_por).
2423		obsolete_preference(show_full_error_span).
2424		obsolete_preference(path_to_sfdp).
2425		obsolete_preference(dot_use_alterate_dot_viewer).
2426		obsolete_preference(path_to_dotty2).
2427		obsolete_preference(prob2_trace_file).
2428		obsolete_preference(prob2_trace_file_gen_unique_name).
2429		obsolete_preference(try_kodkod_on_load).
2430
2431		% might be re-included later
2432		obsolete_preference(plugin(absint,use_widening)).
2433		obsolete_preference(plugin(absint,soft_widening)).
2434		obsolete_preference(plugin(absint,extrapolation_threshold)).
2435		obsolete_preference(plugin(absint,retract_widening_related_states)).
2436
2437		obsolete_preference(use_por_for_ltl).
2438
2439		% replaced by api calls
2440		obsolete_preference(path_to_smt_solver).
2441
2442		% has been renamed
2443		obsolete_preference(try_atb_provers_for_smtlib).
2444
2445		obsolete_preference(bool_expression_as_predicate). % BOOL_AS_PREDICATE
2446
2447
2448		% VOLATILE
2449		% not necessary to store in file; value will not be changed when loading pref file
2450		% dangerous preferences: user should explicitly reset it every time or put it explicitly into file
2451		volatile_preference(store_event_transinfo).
2452		volatile_preference(fail_if_clpfd_timeout).
2453		volatile_preference(ignore_hash_collisions).
2454		volatile_preference(forget_state_space).
2455		volatile_preference(store_only_one_incoming_transition).
2456		volatile_preference(mc_continue_after_error).
2457		volatile_preference(filter_unused_constants).
2458		volatile_preference(disprover_mode).
2459		volatile_preference(allow_improving_wd_mode).
2460		volatile_preference(trace_upon_error).
2461		volatile_preference(performance_monitoring_on).
2462		volatile_preference(translate_force_all_typing_infos).
2463		volatile_preference(translate_print_typing_infos).
2464		volatile_preference(translate_ids_to_parseable_format).
2465		volatile_preference(translate_suppress_rodin_positions_flag).
2466		volatile_preference(deterministic_trace_replay).
2467		%volatile_preference(bool_expression_as_predicate). % Deprecated
2468		volatile_preference(prob_version_info).
2469		volatile_preference(prob_revision_info).
2470		volatile_preference(prob_lastchangedate_info).
2471		volatile_preference(path_to_java_parser).
2472		volatile_preference(do_not_print_wd_errors). % set by unsat core
2473		volatile_preference(operation_reuse_setting). % computed
2474		volatile_preference(use_state_packing). % computed
2475
2476		read_only_preference(prob_version_info).
2477		read_only_preference(prob_revision_info).
2478		read_only_preference(prob_lastchangedate_info).
2479
2480		/* ------------------------- */
2481	?	is_of_type(El,Type) :- type_element(Type,El).
2482
2483		type_element(bool,X) :- !, (X=true -> true ; X=false).
2484		type_element(directory_path,X) :- !, atomic(X),check_directory_exists(X).
2485		type_element(int,X) :- !, integer(X).
2486		type_element(neg,X) :- !, integer(X), X=<0.
2487		type_element(nat,X) :- !, integer(X), X>=0.
2488		type_element(nat1,X) :- !, integer(X), X>0.
2489		type_element(range(Low,Up),X) :- !, number(X), X>=Low, X=<Up.
2490		type_element(string,X) :- !, atomic(X).
2491		type_element(path,X) :- !, atomic(X). % some paths are files, some directorys (.app) and some aliases
2492		type_element(file_path,X) :- !, atomic(X),check_file_exists(X).
2493		type_element(term,X) :- !, nonvar(X).
2494		type_element(dot_shape,X) :- !, valid_dot_shape(X).
2495		type_element(dot_node_style,X) :- !, valid_dot_node_style(X).
2496		type_element(dot_line_style,X) :- !, valid_dot_line_style(X).
2497	?	type_element(rgb_color,X) :- !, valid_rgb_color(X).
2498	?	type_element(ListOfCsts,X) :- ListOfCsts=[_|_], !, member(X,ListOfCsts).
2499	?	type_element(Type,X) :- list_valid_type_vals(Type,List),!, member(X,List).
2500		type_element(Type,X) :- pref_type_synonym(Type,List),!,
2501	?	is_of_type(X,List). % cvc4 not working
2502
2503		pref_type_synonym(por,[off,ample_sets,ample_sets2]).
2504		pref_type_synonym(solver_name,[cdclt,clingo,kodkod,prob,sat,'sat-z3',z3,z3cns,z3axm]).
2505		pref_type_synonym(text_encoding,[auto, 'ASCII', % ascii not directly listed in manual page, but is on web page below
2506		'ISO-8859-1','ISO-8859-2',
2507		'ISO-8859-15',
2508		'UTF-8','UTF-16','UTF-16LE','UTF-16BE','UTF-32','UTF-32LE','UTF-32BE',
2509		'ANSI_X3.4-1968', 'windows 1252']).
2510		% a few more names seem to be allowed (section 4.6.7.5 of SICStus handbook)
2511		% few from https://www.iana.org/assignments/character-sets/character-sets.xhtml
2512		% using illegal names leads to SPIO_E_CHARSET_NOT_FOUND exception
2513
2514		valid_dot_node_style(bold).
2515		valid_dot_node_style(dashed).
2516		valid_dot_node_style(diagonals).
2517		valid_dot_node_style(dotted).
2518		valid_dot_node_style(filled).
2519		valid_dot_node_style(invisible).
2520		valid_dot_node_style(rounded).
2521		valid_dot_node_style(solid).
2522		valid_dot_node_style(striped).
2523		valid_dot_node_style(wedged).
2524		valid_dot_node_style(''). % revert to default
2525
2526		valid_dot_line_style(bold).
2527		valid_dot_line_style(dashed).
2528		valid_dot_line_style(dotted).
2529		valid_dot_line_style(invis).
2530		valid_dot_line_style(solid).
2531		valid_dot_line_style('').
2532
2533		valid_dot_shape('Mcircle').
2534		valid_dot_shape('Mdiamond').
2535		valid_dot_shape('Msquare').
2536		valid_dot_shape(box).
2537		valid_dot_shape(box3d). % requires newer version of graphviz
2538		valid_dot_shape(cds). % requires newer version of graphviz
2539		valid_dot_shape(circle).
2540		valid_dot_shape(component). % requires newer version of graphviz
2541		valid_dot_shape(cylinder). % requires newer version of graphviz
2542		valid_dot_shape(diamond).
2543		valid_dot_shape(doublecircle).
2544		valid_dot_shape(doubleoctagon).
2545		valid_dot_shape(egg).
2546		valid_dot_shape(ellipse).
2547		valid_dot_shape(folder). % requires newer version of graphviz
2548		valid_dot_shape(hexagon).
2549		valid_dot_shape(house).
2550		valid_dot_shape(invhouse).
2551		valid_dot_shape(invtrapez).
2552		valid_dot_shape(invtrapezium).
2553		valid_dot_shape(invtriangle).
2554		valid_dot_shape(larrow). % requires newer version of graphviz
2555		valid_dot_shape(lpromoter). % requires newer version of graphviz
2556		valid_dot_shape(none).
2557		valid_dot_shape(note). % requires newer version of graphviz
2558		valid_dot_shape(octagon).
2559		valid_dot_shape(oval).
2560		valid_dot_shape(parallelogram).
2561		valid_dot_shape(pentagon).
2562		valid_dot_shape(plain).
2563		valid_dot_shape(plaintext).
2564		valid_dot_shape(point).
2565		valid_dot_shape(promoter). % requires newer version of graphviz
2566		valid_dot_shape(record).
2567		valid_dot_shape(rarrow). % requires newer version of graphviz
2568		valid_dot_shape(rect).
2569		valid_dot_shape(rectangle).
2570		valid_dot_shape(rpromoter). % requires newer version of graphviz
2571		valid_dot_shape(septagon).
2572		valid_dot_shape(square).
2573		valid_dot_shape(star). % requires newer version of graphviz
2574		valid_dot_shape(tab). % requires newer version of graphviz
2575		valid_dot_shape(trapezium).
2576		valid_dot_shape(triangle).
2577		valid_dot_shape(tripleoctagon).
2578
2579		:- use_module(library(lists),[maplist/2]).
2580		valid_rgb_color(X) :- tk_color(X).
2581		valid_rgb_color(X) :- % check for composed colors like chocolate3
2582		atom_codes(X,Codes), append(Prefix,[Digit],Codes),
2583		Digit >= 48, Digit =< 57, Nr is Digit - 48, atom_codes(ColorName,Prefix),
2584		tk_color(ColorName,Low,Up),
2585		Nr >= Low, Nr =< Up.
2586		valid_rgb_color(X) :- valid_gray(X).
2587		valid_rgb_color(X) :- atom(X),atom_codes(X,[35|HexCodes]),
2588		length(HexCodes,Len),
2589		(Len=6 ; Len=8), % with Alpha codes
2590	?	maplist(hex,HexCodes). % should be of the form #ff00ff, optionally with alpha value
2591
2592		% colors which also accept numbers at end:
2593		tk_color(aquamarine,1,4).
2594		tk_color(azure,1,4).
2595		tk_color(bisque,1,4).
2596		tk_color(blue,1,4).
2597		tk_color(brown,1,4).
2598		tk_color(burlywood,1,4).
2599		tk_color('CadetBlue',1,4).
2600		tk_color(chartreuse,1,4).
2601		tk_color(chocolate,1,4).
2602		tk_color(coral,1,4).
2603		tk_color(cornsilk,1,4).
2604		tk_color(cyan,1,4).
2605		tk_color(deepskyblue,1,4).
2606		tk_color('DarkGoldenrod',1,4).
2607		tk_color('DarkOliveGreen',1,4).
2608		tk_color('DarkOrange',1,4).
2609		tk_color('DarkSeaGreen',1,4).
2610		tk_color('DarkSlateGray',1,4).
2611		tk_color('DeepPink',1,4).
2612		tk_color('DeepSkyBlue',1,4).
2613		tk_color('DodgerBlue',1,4).
2614		tk_color(firebrick,1,4).
2615		tk_color(gold,1,4).
2616		tk_color(goldenrod,1,4).
2617		tk_color(gray,0,99).
2618		tk_color(green,1,4).
2619		tk_color(grey,0,99).
2620		tk_color(honeydew,1,4).
2621		tk_color('HotPink',1,4).
2622		tk_color(indianred,1,4).
2623		tk_color('IndianRed',1,4).
2624		tk_color(ivory,1,4).
2625		tk_color(khaki,1,4).
2626		tk_color('LavenderBlush',1,4).
2627		tk_color('LemonChiffon',1,4).
2628		tk_color('LightBlue',1,4).
2629		tk_color('LightCyan',1,4).
2630		tk_color('LightGoldenrod',1,4).
2631		tk_color('LightPink',1,4).
2632		tk_color('LightSalmon',1,4).
2633		tk_color('LightSkyBlue',1,4).
2634		tk_color('LightSteelBlue',1,4).
2635		tk_color('LightYellow',1,4).
2636		tk_color(magenta,1,4).
2637		tk_color(maroon,1,4).
2638		tk_color('MediumOrchid',1,4).
2639		tk_color('MediumPurple',1,4).
2640		tk_color('MistyRose',1,4).
2641		tk_color('NavajoWhite',1,4).
2642		tk_color(orchid,1,4).
2643		tk_color(orange,1,4).
2644		tk_color(olivedrab,1,4).
2645		tk_color('OliveDrab',1,4).
2646		tk_color('OrangeRed',1,4).
2647		tk_color(mistyrose,1,4).
2648		tk_color(peachpuff,1,4).
2649		tk_color(pink,1,4).
2650		tk_color(plum,1,4).
2651		tk_color(purple,1,4).
2652		tk_color('PaleGreen',1,4).
2653		tk_color('PaleTurquoise',1,4).
2654		tk_color('PaleVioletRed',1,4).
2655		tk_color('PeachPuff',1,4).
2656		tk_color(red,1,4).
2657		tk_color(royalblue,1,4).
2658		tk_color('RosyBrown',1,4).
2659		tk_color('RoyalBlue',1,4).
2660		tk_color(salmon,1,4).
2661		tk_color(seagreen,1,4).
2662		tk_color(seashell,1,4).
2663		tk_color(sienna,1,4).
2664		tk_color(skyblue,1,4).
2665		tk_color(snow,1,4).
2666		tk_color(springgreen,1,4).
2667		tk_color(steelblue,1,4).
2668		tk_color('SeaGreen',1,4).
2669		tk_color('SkyBlue',1,4).
2670		tk_color('SlateBlue',1,4).
2671		tk_color('SlateGray',1,4).
2672		tk_color('SpringGreen',1,4).
2673		tk_color('SteelBlue',1,4).
2674		tk_color(tan,1,4).
2675		tk_color(thistle,1,4).
2676		tk_color(tomato,1,4).
2677		tk_color(turquoise,1,4).
2678		tk_color('VioletRed',1,4).
2679		tk_color(wheat,1,4).
2680		tk_color(yellow,1,4).
2681
2682
2683		tk_color(X) :- tk_color(X,_,_).
2684		tk_color('AliceBlue').
2685		tk_color(beige).
2686		tk_color(black).
2687		tk_color('BlanchedAlmond').
2688		tk_color('BlueViolet').
2689		tk_color(darkblue).
2690		tk_color(darkgray). % this is not a valid X11 color; but it is recognised by Tk (but not by sfdp)
2691		tk_color(darkgreen).
2692		tk_color(darkorange).
2693		tk_color(darkorchid).
2694		tk_color(darkred).
2695		tk_color(darkslateblue).
2696		tk_color(darkviolet).
2697		tk_color('DarkBlue').
2698		tk_color('DarkCyan').
2699		tk_color('DarkGray').
2700		tk_color('DarkGreen').
2701		tk_color('DarkGrey').
2702		tk_color('DarkKhaki').
2703		tk_color('DarkMagenta').
2704		tk_color('DarkRed').
2705		tk_color('DarkSalmon').
2706		tk_color('DarkSlateBlue').
2707		tk_color('DarkTurquoise').
2708		tk_color('DarkViolet').
2709		tk_color('DimGray').
2710		tk_color('DimGrey').
2711		tk_color('FloralWhite').
2712		tk_color('ForestGreen').
2713		tk_color(lightblue).
2714		tk_color(lightgray).
2715		tk_color('LawnGreen').
2716		tk_color('LightCoral').
2717		tk_color('LightGray').
2718		tk_color('LightGreen').
2719		tk_color('LightGrey').
2720		tk_color('LightSeaGreen').
2721		tk_color('LimeGreen').
2722		tk_color(moccasin).
2723		tk_color('MediumAquamarine').
2724		tk_color('MediumBlue').
2725		tk_color('MediumSeaGreen').
2726		tk_color('MediumSlateBlue').
2727		tk_color('MediumSpringGreen').
2728		tk_color('MediumTurquoise').
2729		tk_color('MediumVioletRed').
2730		tk_color('MidnightBlue').
2731		tk_color('MintCream').
2732		tk_color(navy).
2733		tk_color('NavyBlue').
2734		tk_color('OldLace').
2735		tk_color('PapayaWhip').
2736		tk_color('PowderBlue').
2737		tk_color(slateblue).
2738		tk_color(steelblue).
2739		tk_color('SaddleBrown').
2740		tk_color('SandyBrown').
2741		tk_color(violet).
2742		tk_color(white).
2743		tk_color('WhiteSmoke').
2744		tk_color('YellowGreen').
2745
2746		valid_gray(G) :- atom(G), atom_concat('gray',NAtom,G), atom_codes(NAtom,[N1|T]), digit(N1),
2747		(T=[] -> true ; T=[N2],digit(N2)).
2748		digit(N) :- N >47, N<58.
2749
2750
2751		hex(X) :- atomic(X), number(X), ((X<103,X>96) ; (X<71,X>64) ; (X>47,X<58)).
2752
2753		:- use_module(library(file_systems)).
2754		check_file_exists(X) :- file_exists(X) -> true ; add_message(preferences,'Warning file for preference does not exist: ',X).
2755		check_directory_exists(X) :-
2756		directory_exists(X) -> true ; add_message(preferences,'Warning directory for preference does not exist: ',X).
2757		:- public check_path_exists/1.
2758		check_path_exists(X) :- (file_exists(X) -> true
2759		; directory_exists(X) -> true
2760		; add_message(preferences,'Warning path for preference does not exist: ',X)).
2761
2762		:- dynamic temp_pref/3.
2763		% use to temporarily set preferences;
2764		% changes can be undone with reset_temporary_preference
2765		% change will not be saved if reset_temporary_preference not called (e.g., due to bug/timeout/Ctrl-C)
2766		temporary_set_preference(Pref,Val) :- temporary_set_preference(Pref,Val,_).
2767		temporary_set_preference(Pref,Val,ChangeOccured) :- get_preference(Pref,OldVal),!,
2768		(OldVal=Val -> ChangeOccured=false
2769		; set_preference_direct(Pref,Val,_), ChangeOccured = true,
2770		asserta(temp_pref(Pref,OldVal,Val))
2771		%,debug:debug_println(9,temp_set_pref(Pref,Val))
2772		).
2773		% Note: assertz(p(1)), assertz(p(2)), retract(p(X)), retract(p(Y)) -> X=1, Y=2
2774		% Note: asserta(p(1)), asserta(p(2)), retract(p(X)), retract(p(Y)) -> X=2, Y=1
2775
2776		reset_temporary_preference(P) :-
2777		reset_temporary_preference(P,true). % we assume a change occured
2778		reset_temporary_preference(_P,ChangeOccured) :-
2779		ChangeOccured==false,!. % nothing to do, either no change or not executed
2780		% Note: if ChangeOccured is var, the temporary_set_preference call was not executed (time_out or exception)
2781		reset_temporary_preference(Pref,_) :-
2782		(retract(temp_pref(Pref,OldVal,_NewVal))
2783		-> set_preference_direct(Pref,OldVal,_)
2784		; true).
2785
2786	?	reset_all_temporary_preferences :- retract(temp_pref(Pref,OldVal,_)),set_preference(Pref,OldVal),fail.
2787		reset_all_temporary_preferences.
2788
2789		% this set_preference does not update change flag and performs no preference_update_action
2790		set_preference_direct(Pref,Val,_) :- var(Pref),!,
2791		print_error('Variable as preference not allowed'),
2792		print_error(set_preference(Pref,Val)),
2793		fail.
2794		set_preference_direct(Pref,Val,OldVal) :- read_only_preference(Pref),!,
2795		print_error('Preference is read-only'),
2796		print_error(set_preference(Pref,Val)),
2797		% do not fail, the Rodin plugin calls this when switching workspaces
2798		preference(Pref,OldVal).
2799		set_preference_direct(Pref,Val,OldVal) :-
2800		% format(user_output,'~nset_preference ~w to ~w (~w)~n~n',[Pref,Val,OldVal]),
2801		(preference_val_type(Pref,Type)
2802	?	-> (is_of_type(Val,Type)
2803		-> NewVal=Val
2804		; convert_pref(Val,Type,NewVal), is_of_type(NewVal,Type)
2805		-> true
2806		; format_error_with_nl('New preference value for ~w of incorrect type (expected ~w): ~w',[Pref,Type,Val]),
2807		%Val =.. L, print_error(val(L)),
2808		print_error('No changes performed!'),
2809		fail
2810		)
2811		; obsolete_preference(Pref) -> print_error('Obsolete preference'), print_error(Pref)
2812		; print_error('Do not know type of preference'), print_error(Pref)
2813		),
2814		(retract(preference(Pref,OLD)) -> OldVal=OLD ; OldVal = '$none'),
2815		assertz(preference(Pref,NewVal)),
2816		(OldVal=NewVal -> true
2817		; preference_update_action(Pref,NewVal) -> true).
2818
2819		% in case the preferences are set by user using upper-case TRUE and FALSE
2820		convert_pref('TRUE',T,true) :- bool_type(T).
2821		convert_pref('FALSE',T,false) :- bool_type(T).
2822		convert_pref('FULL',T,full) :- xbool_type(T).
2823		convert_pref('DEFAULT',dbool,default).
2824		bool_type(bool).
2825		bool_type(dbool).
2826		bool_type(T) :- xbool_type(T).
2827		xbool_type(xbool).
2828		xbool_type(axbool).
2829
2830		set_preference(Pref,Val) :-
2831		set_preference_direct(Pref,Val,OldVal),
2832		retractall(temp_pref(Pref,_,_)), % user has overriden temporary choice
2833		(OldVal=Val -> true ; assert_change_flag).
2834
2835
2836
2837		tcltk_get_preference(Pref,Val) :- /* same as get_preference, but convert non-atomic into atoms */
2838		get_preference(Pref,V),
2839		(atomic(V) -> Val=V
2840		; translate_term_into_atom(V,Val)
2841		).
2842
2843		get_preference(Pref,Val) :-
2844		(preference(Pref,V)
2845		-> Val=V
2846		; (preference_default_value(Pref,V)
2847		-> Val=V
2848		; (obsolete_preference(Pref)
2849		-> print_error('Obsolete preference in get_preference:')
2850		; print_error('Invalid preference in get_preference:')
2851		),
2852		print_error(Pref),
2853		Val = 0
2854		)
2855		).
2856
2857		% --------------
2858
2859		% rules for computed/derived preferences:
2860		get_computed_preference(debug_time_out,Res) :-
2861		preference(debug_time_out_factor,TFactor), !,
2862		get_time_out_preference_with_factor(TFactor,Res).
2863		get_computed_preference(convert_closures_into_explicit_form_for_store,Value) :-
2864		preference(convert_comprehension_sets_into_closures,SymbolicV),!,
2865		(SymbolicV=true -> Value=false ; Value=true).
2866		get_computed_preference(X,_) :- print_error('Invalid Preference in get_computed_preference:'),
2867		print_error(X).
2868
2869
2870
2871		% --------------
2872
2873		get_time_out_preference_with_factor(TFactor,Res) :-
2874		preference(time_out,CurTO),
2875		(disabled_time_out(CurTO)
2876		-> disabled_time_out(Res) % keep disabled_time_out value
2877		; DTimeOut is round(CurTO * TFactor),
2878		prune_time_out_preference(DTimeOut,Res)).
2879		add_time_outs(TO1,TO2,ResTO) :-
2880		(disabled_time_out(TO1) -> ResTO=TO1
2881		; disabled_time_out(TO2) -> ResTO=TO2
2882		; ResTO is integer(TO1)+integer(TO2)
2883		).
2884
2885		% value of 2147483646 means time-out was disabled, 600 hours; should we move to 64 bits ?
2886		disabled_time_out(2147483646). % cf no_time_out_value in tools_meta
2887		prune_time_out_preference(X,Res) :- (X>= 2147483646 -> disabled_time_out(Res) ; Res=X).
2888
2889		time_out_preference_disabled :- preference(time_out,2147483646).
2890
2891		cur_pref_string(Pref,String) :-
2892		preference_description(Pref,Desc),
2893		(eclipse_preference(ECLPREF,Pref) -> ajoin([ECLPREF,': ',Desc],String)
2894		; String=Desc). %string_concatenate(Desc,';',String)).
2895		/* preference(Pref,Val),
2896		string_concatenate(Val,';',V1),
2897		string_concatenate(' = ',V1,V2),
2898		string_concatenate(Desc,V2,String). */
2899
2900		/* useful predicates for Tcl/Tk listbox interaction: */
2901		get_preferences_list(List) :-
2902		findall(S,cur_pref_string(_,S),List).
2903		get_preferences_list(Category,list(List)) :-
2904		findall(S,(virtual_preference_category(Pref,Category),cur_pref_string(Pref,S)),List).
2905
2906		% add some virtual categories like eclipse
2907		virtual_preference_category(Pref,Category) :- Category==eclipse,!,
2908		findall(e(E,P),(eclipse_preference(E,P), \+ preference_category(P,hidden)),List),
2909		sort(List,SList),
2910		member(e(_,Pref),SList).
2911		virtual_preference_category(Pref,Category) :- preference_description(Pref,_Desc), preference_category(Pref,Category).
2912		virtual_preference_category(Pref,Category) :- preference_description(Pref,_Desc),
2913		alternate_preference_category(Pref,Category).
2914
2915
2916		get_ith_preference_type(Pos,Type) :- get_ith_preference_type(_,Pos,Type).
2917		get_ith_preference_type(Category,Pos,Type) :-
2918		findall(S, (virtual_preference_category(Pref,Category),
2919		preference_val_type(Pref,S)), List),
2920		(nth1(Pos,List,FType) -> Type=FType
2921		; (add_error(get_ith_preference_type,'Could not find preference: ',nth1(Pos,List)),fail)).
2922
2923		get_ith_preference_value(Pos,Val) :- get_ith_preference_value(_,Pos,Val).
2924		get_ith_preference_value(Category,Pos,Val) :-
2925		findall(S, (virtual_preference_category(Pref,Category),
2926		tcltk_get_preference(Pref,S)), List),
2927		(nth1(Pos,List,FVal) -> Val=FVal
2928		; (add_error(get_ith_preference_value,'Could not find preference: ',nth1(Pos,List)),fail)).
2929
2930		set_ith_preference_value(Pos,Val) :- set_ith_preference_value(_,Pos,Val).
2931		set_ith_preference_value(Category,Pos,Val) :-
2932		findall(S, virtual_preference_category(S,Category), List),
2933		(nth1(Pos,List,Pref) -> set_preference(Pref,Val)
2934		; add_error(set_ith_preference_value,'Could not find preference: ',nth1(Pos,List)),fail).
2935
2936
2937		% a version of get_preference that will also generate warnings
2938		get_preference_with_warnings(Pref,Value) :- gen_preference_warnings(Pref),
2939		get_preference(Pref,Value).
2940
2941		% get detailed warnings about a preference value
2942		gen_preference_warnings(Pref) :-
2943		preference(Pref,Value),
2944		preference_val_type(Pref,T),
2945		\+ is_of_type(Value,T),
2946		ajoin(['The value of the preference ',Pref,' does not have the correct type:'],Msg),
2947		add_warning(preferences,Msg,T),
2948		fail.
2949		gen_preference_warnings(Pref) :-
2950		preference_val_type(Pref,path),
2951		preference(Pref,Value),
2952		get_modulename_filename(Value,Module),
2953		invalid_application(Pref,Module),
2954		ajoin(['The path chosen for preference ',Pref,' seems to point to a wrong program:'],Msg),
2955		add_warning(preferences,Msg,Module),
2956		fail.
2957		gen_preference_warnings(_).
2958		% TODO: check e.g. that OPERATION_REUSE is not used in XTL mode,...
2959
2960		invalid_application(path_to_dotty,dot).
2961		invalid_application(path_to_dot,dotty).
2962
2963		/* ------------------------- */
2964
2965		:- dynamic nr_of_recent_documents/1.
2966		:- dynamic recent_documents/1.
2967		nr_of_recent_documents(0).
2968
2969		recompute_nr_of_recent_documents :-
2970		retractall(nr_of_recent_documents(_)),
2971		findall(X,recent_documents(X),List),
2972		length(List,Nr),
2973		assertz(nr_of_recent_documents(Nr)).
2974
2975
2976		:- dynamic add_recent_documents_active/0.
2977		add_recent_documents_active.
2978
2979		activate_recent_documents :- (add_recent_documents_active -> true ; assertz(add_recent_documents_active)).
2980
2981		deactivate_recent_documents :- retractall(add_recent_documents_active).
2982
2983		/* use to add a file to recent documents list */
2984		add_recent_document(_) :- \+ add_recent_documents_active, !.
2985		add_recent_document(Document) :-
2986		(retract(nr_of_recent_documents(Nr)) -> true ; Nr=0),
2987		(retract(recent_documents(Document))
2988		-> N1 =Nr ; N1 is Nr+1
2989		),
2990		(preference(number_of_recent_documents,Max) -> true ; Max=25),
2991		(N1>Max -> (retract(recent_documents(_)),assertz(nr_of_recent_documents(Nr)))
2992		; assertz(nr_of_recent_documents(N1))),
2993		assertz(recent_documents(Document)),
2994		assert_change_flag.
2995
2996		get_recent_documents(list(Res)) :-
2997		findall(X,recent_documents(X),List),
2998		reverse(List,Res).
2999
3000		clear_recent_documents :-
3001		retractall(recent_documents(_)),
3002		retractall(nr_of_recent_documents(_)),
3003		assertz(nr_of_recent_documents(0)).
3004
3005
3006		/* use to add a string to the searched patterns list */
3007		:- dynamic searched_patterns/1.
3008		:- dynamic replaced_patterns/1.
3009		:- dynamic eval_history_elements/1.
3010		:- dynamic eval_csp_history_elements/1.
3011		:- dynamic checked_ltl_formulas/1.
3012
3013
3014		add_element_to_history(Predicate,Pattern,MaxNumb) :-
3015		merge_prefix_with_suffix(number_of_,Predicate,Name),
3016		get_predicate_term_with_single_argument(Name,Nr,TermNum),
3017		(retract(TermNum) -> true ; Nr=0),
3018		get_predicate_term_with_single_argument(Predicate,Pattern,Term),
3019		(retract(Term) -> N1=Nr ; N1 is Nr+1),
3020		(preference(TermNum,Max) -> true ; Max=MaxNumb),
3021		get_predicate_term_with_single_argument(Predicate,_,Term1),
3022		(N1>Max -> (retract(Term1),assertz(TermNum))
3023		; get_predicate_term_with_single_argument(Name,N1,TermNum1),
3024		assertz(TermNum1)),assertz(Term),
3025		assert_change_flag.
3026
3027		% this will be used with checked_ltl_formulas, ... from tcltk_gui.tcl
3028		:- public searched_patterns/1, replaced_patterns/1, eval_history_elements/1, eval_csp_history_elements/1, checked_ltl_formulas/1.
3029		get_history_elements_list(Predicate,Reversed,list(Res)) :-
3030		get_predicate_term_with_single_argument(Predicate,X,Term),
3031		findall(X,Term,List),
3032		(Reversed=true -> reverse(List,Res); Res=List).
3033
3034
3035
3036		/* not used
3037		:- dynamic number_of_checked_ltl_formulas/1.
3038		number_of_checked_ltl_formulas(0).
3039		recompute_nr_of_checked_ltl_formulas :-
3040		retractall(number_of_checked_ltl_formulas(_)),
3041		findall(F,checked_ltl_formulas(F),List),
3042		length(List,Nr),assertz(number_of_checked_ltl_formulas(Nr)). */
3043
3044		merge_prefix_with_suffix(Prefix,Ending,Name) :-
3045		atom_codes(Prefix,Pr),atom_codes(Ending,End),
3046		append(Pr,End,CodeName),atom_codes(Name,CodeName).
3047
3048		get_predicate_term_with_single_argument(Name,Arg,Term) :-
3049		functor(Term,Name,1),arg(1,Term,Arg).
3050
3051
3052		/* ------------------------- */
3053
3054		:- dynamic prob_application_type/1.
3055		prob_application_type(unknown).
3056
3057		get_prob_application_type(X) :- prob_application_type(X).
3058		set_prob_application_type(X) :- retractall(prob_application_type(_)), assertz(prob_application_type(X)).
3059		% can be tcltk, probcli, prob2, rodin, ...
3060		% TODO: call set_prob_application_type(prob2) via some flag when starting from ProB2/ProB2-UI
3061
3062		/* ------------------------- */
3063
3064		% used by -pref_group Group procli command
3065		set_preference_group(Group,_) :- \+ preference_group_description(Group,_),!,
3066		add_error(set_preference_mode,'Preference mode does not exist: ',Group).
3067		set_preference_group(Group,default) :-
3068		preference_group_val(Group,Scheme,_,_),!, % pick one scheme and reset all values of that scheme to default
3069		( preference_group_val(Group,Scheme,Pref,_),preference_default_value(Pref,Val),
3070		set_preference(Pref,Val),fail
3071		; true).
3072		set_preference_group(Group,Scheme) :- \+ preference_group_val(Group,Scheme,_,_),!,
3073		add_error(set_preference_mode,'Preference scheme does not exist: ',Group:Scheme).
3074		set_preference_group(Group,Scheme) :- preference_group_val(Group,Scheme,Pref,Val),
3075		set_preference(Pref,Val),fail.
3076		set_preference_group(_,_).
3077
3078
3079		preference_group_description(integer,'Values for MAXINT and MININT').
3080		preference_group_description(time_out,'To disable TIME_OUT').
3081		preference_group_description(model_check,'Model Checking Limits').
3082		preference_group_description(dot_colors,'Colours for Dot graphs').
3083		preference_group_description(sh_colors,'Colours for Syntax Highlighting').
3084
3085		preference_group_val(integer,int64,maxint, 9223372036854775807). % 2**63-1
3086		preference_group_val(integer,int64,minint,-9223372036854775808). %-2**63
3087		preference_group_val(integer,int32,maxint,2147483647). % 2**31-1
3088		preference_group_val(integer,int32,minint,-2147483648). %-2**31
3089		preference_group_val(integer,int8,maxint,127).
3090		preference_group_val(integer,int8,minint,-128).
3091
3092		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
3093
3094		preference_group_val(model_check,unlimited,time_out,TO) :- disabled_time_out(TO). % this value turns time_out off
3095		preference_group_val(model_check,unlimited,maxNrOfInitialisations,Max) :- current_prolog_flag(max_tagged_integer,Max).
3096		preference_group_val(model_check,unlimited,maxNrOfEnablingsPerOperation,Max) :- current_prolog_flag(max_tagged_integer,Max).
3097		preference_group_val(model_check,disable_max,maxNrOfInitialisations,Max) :- current_prolog_flag(max_tagged_integer,Max).
3098		preference_group_val(model_check,disable_max,maxNrOfEnablingsPerOperation,Max) :- current_prolog_flag(max_tagged_integer,Max).
3099
3100		preference_group_val(dot_colors,classic,dot_normal_node_colour, olivedrab2).
3101		preference_group_val(dot_colors,classic,dot_normal_arc_colour,steelblue).
3102		preference_group_val(dot_colors,classic,dot_open_node_colour,red).
3103		preference_group_val(dot_colors,classic,dot_goal_node_colour,orange).
3104		preference_group_val(dot_colors,classic,dot_invariant_violated_node_colour,maroon2).
3105		preference_group_val(dot_colors,classic,dot_counterexample_node_colour,brown).
3106		preference_group_val(dot_colors,classic,dot_counterexample_op_colour,brown).
3107
3108		preference_group_val(dot_colors,winter,dot_normal_node_colour, '#425955').
3109		preference_group_val(dot_colors,winter,dot_normal_arc_colour,'#1B1D26').
3110		preference_group_val(dot_colors,winter,dot_open_node_colour,'#BFBD9F').
3111		preference_group_val(dot_colors,winter,dot_goal_node_colour,'#CC8604').
3112		preference_group_val(dot_colors,winter,dot_invariant_violated_node_colour,'#9C080C').
3113
3114		preference_group_val(dot_colors,dreams,dot_normal_node_colour, '#5D7359').
3115		preference_group_val(dot_colors,dreams,dot_invariant_violated_node_colour,'#661C0E').
3116		preference_group_val(dot_colors,dreams,dot_normal_arc_colour,'#8C5430').
3117		preference_group_val(dot_colors,dreams,dot_open_node_colour,'#D6AA5C').
3118		preference_group_val(dot_colors,dreams,dot_goal_node_colour,'#FFC800').
3119
3120		preference_group_val(dot_colors,solarized,dot_normal_node_colour, '#859900').
3121		preference_group_val(dot_colors,solarized,dot_normal_arc_colour,'#268bd2').
3122		preference_group_val(dot_colors,solarized,dot_open_node_colour,'#dc322f').
3123		preference_group_val(dot_colors,solarized,dot_goal_node_colour,'#cb4b16').
3124		preference_group_val(dot_colors,solarized,dot_invariant_violated_node_colour,'#dc322f').
3125		preference_group_val(dot_colors,solarized,dot_counterexample_node_colour,'#dc322f').
3126		preference_group_val(dot_colors,solarized,dot_counterexample_op_colour,'#d33682').
3127
3128
3129		preference_group_val(sh_colors,solarized,sh_type_colour,'#dc322f'). % $red
3130		preference_group_val(sh_colors,solarized,sh_logical_colour,'#cb4b16'). % $orange
3131		preference_group_val(sh_colors,solarized,sh_assignments_colour,'#268bd2'). % $blue
3132		preference_group_val(sh_colors,solarized,sh_operators,'#2aa198'). % $cyan
3133		preference_group_val(sh_colors,solarized,sh_top_level_keywords,'#6c71c4'). % $violet
3134		preference_group_val(sh_colors,solarized,sh_control_keywords,'#d33682'). % $magenta
3135		preference_group_val(sh_colors,solarized,sh_comments,'#93a1a1'). % $base1
3136		preference_group_val(sh_colors,solarized,sh_pragmas,'#859900'). % $green
3137		preference_group_val(sh_colors,solarized,sh_unsupported_background,'#b58900'). % $yellow
3138
3139		:- use_module(eventhandling,[register_event_listener/3]).
3140		:- register_event_listener(startup_prob,init_preferences,
3141		'Initialise Preferences').
3142		:- register_event_listener(clear_specification,reset_all_temporary_preferences,
3143		'Reset Temporary Preferences.').
3144		:- register_event_listener(start_unit_tests,(backup_preferences,
3145		set_preference(minint,-1),
3146		set_preference(maxint,3),
3147		set_preference(translate_print_all_sequences,false),
3148		set_preference(translate_print_cs_style_sequences,false)
3149		),
3150		'Setting up Preferences for Unit Tests').
3151		:- register_event_listener(stop_unit_tests, revert_preferences, 'Reverting Preferences').
3152		:- register_event_listener(reset_prob,(reset_all_temporary_preferences, reset_to_defaults),
3153		'Reset Preferences just like after starup_prob').