/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/Termination.epf -tc ../../../trunk/examples/toolchains/BuchiAutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-bakery-4.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 16:37:51,983 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 16:37:52,034 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/Termination.epf [2025-04-26 16:37:52,037 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 16:37:52,037 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 16:37:52,037 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Check unreachability of error function in SV-COMP mode [2025-04-26 16:37:52,037 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2025-04-26 16:37:52,050 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 16:37:52,050 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 16:37:52,050 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 16:37:52,051 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 16:37:52,051 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 16:37:52,051 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 16:37:52,051 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 16:37:52,051 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 16:37:52,051 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 16:37:52,051 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 16:37:52,051 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 16:37:52,051 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 16:37:52,051 INFO L153 SettingsManager]: * Automaton type for concurrent programs=PARTIAL_ORDER_BA [2025-04-26 16:37:52,051 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 16:37:52,051 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 16:37:52,052 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 16:37:52,052 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 16:37:52,052 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 16:37:52,052 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 16:37:52,052 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 16:37:52,052 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 16:37:52,052 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 16:37:52,052 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 16:37:52,052 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 16:37:52,052 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 16:37:52,052 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 16:37:52,052 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 16:37:52,052 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 16:37:52,052 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 16:37:52,052 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 16:37:52,052 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 16:37:52,052 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-26 16:37:52,053 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-26 16:37:52,053 INFO L153 SettingsManager]: * Use conditional POR in concurrent analysis=false [2025-04-26 16:37:52,053 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 16:37:52,053 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 16:37:52,282 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 16:37:52,288 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 16:37:52,290 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 16:37:52,291 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-26 16:37:52,291 INFO L274 PluginConnector]: CDTParser initialized [2025-04-26 16:37:52,293 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/parallel-bakery-4.wvr.c [2025-04-26 16:37:53,605 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/4164e2fc8/636bf372ccda490cbb368deb69b08316/FLAGb1f72f682 [2025-04-26 16:37:53,852 INFO L389 CDTParser]: Found 1 translation units. [2025-04-26 16:37:53,853 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bakery-4.wvr.c [2025-04-26 16:37:53,858 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/4164e2fc8/636bf372ccda490cbb368deb69b08316/FLAGb1f72f682 [2025-04-26 16:37:54,606 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/4164e2fc8/636bf372ccda490cbb368deb69b08316 [2025-04-26 16:37:54,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 16:37:54,610 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-26 16:37:54,611 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-26 16:37:54,611 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-26 16:37:54,614 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-26 16:37:54,615 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.04 04:37:54" (1/1) ... [2025-04-26 16:37:54,615 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74a4007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:37:54, skipping insertion in model container [2025-04-26 16:37:54,615 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.04 04:37:54" (1/1) ... [2025-04-26 16:37:54,631 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-26 16:37:54,830 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bakery-4.wvr.c[5088,5101] [2025-04-26 16:37:54,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-26 16:37:54,849 INFO L200 MainTranslator]: Completed pre-run [2025-04-26 16:37:54,903 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bakery-4.wvr.c[5088,5101] [2025-04-26 16:37:54,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-26 16:37:54,916 INFO L204 MainTranslator]: Completed translation [2025-04-26 16:37:54,917 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:37:54 WrapperNode [2025-04-26 16:37:54,917 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-26 16:37:54,918 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 16:37:54,918 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 16:37:54,918 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 16:37:54,922 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:37:54" (1/1) ... [2025-04-26 16:37:54,929 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:37:54" (1/1) ... [2025-04-26 16:37:54,950 INFO L138 Inliner]: procedures = 20, calls = 36, calls flagged for inlining = 28, calls inlined = 28, statements flattened = 356 [2025-04-26 16:37:54,950 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 16:37:54,951 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 16:37:54,951 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 16:37:54,951 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 16:37:54,958 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:37:54" (1/1) ... [2025-04-26 16:37:54,958 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:37:54" (1/1) ... [2025-04-26 16:37:54,966 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:37:54" (1/1) ... [2025-04-26 16:37:54,966 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:37:54" (1/1) ... [2025-04-26 16:37:54,974 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:37:54" (1/1) ... [2025-04-26 16:37:54,975 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:37:54" (1/1) ... [2025-04-26 16:37:54,977 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:37:54" (1/1) ... [2025-04-26 16:37:54,978 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:37:54" (1/1) ... [2025-04-26 16:37:54,979 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:37:54" (1/1) ... [2025-04-26 16:37:54,985 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 16:37:54,986 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 16:37:54,986 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 16:37:54,986 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 16:37:54,990 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:37:54" (1/1) ... [2025-04-26 16:37:54,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 16:37:55,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:37:55,017 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-26 16:37:55,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-26 16:37:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-26 16:37:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 16:37:55,035 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 16:37:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 16:37:55,036 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 16:37:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-26 16:37:55,036 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-26 16:37:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-04-26 16:37:55,036 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-04-26 16:37:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-26 16:37:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 16:37:55,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 16:37:55,037 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-26 16:37:55,122 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 16:37:55,124 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 16:37:55,495 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 16:37:55,495 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 16:37:55,518 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 16:37:55,519 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 16:37:55,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:37:55 BoogieIcfgContainer [2025-04-26 16:37:55,519 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 16:37:55,520 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 16:37:55,520 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 16:37:55,523 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 16:37:55,524 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:37:55,524 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.04 04:37:54" (1/3) ... [2025-04-26 16:37:55,524 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@79013d3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:37:55, skipping insertion in model container [2025-04-26 16:37:55,524 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:37:55,525 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:37:54" (2/3) ... [2025-04-26 16:37:55,525 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@79013d3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:37:55, skipping insertion in model container [2025-04-26 16:37:55,525 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:37:55,525 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:37:55" (3/3) ... [2025-04-26 16:37:55,526 INFO L376 chiAutomizerObserver]: Analyzing ICFG parallel-bakery-4.wvr.c [2025-04-26 16:37:55,617 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-04-26 16:37:55,653 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-26 16:37:55,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-26 16:37:55,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:37:55,655 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-04-26 16:37:55,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-04-26 16:37:55,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 401 places, 430 transitions, 888 flow [2025-04-26 16:37:55,858 INFO L116 PetriNetUnfolderBase]: 38/422 cut-off events. [2025-04-26 16:37:55,860 INFO L117 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-04-26 16:37:55,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 439 conditions, 422 events. 38/422 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 955 event pairs, 0 based on Foata normal form. 0/383 useless extension candidates. Maximal degree in co-relation 331. Up to 2 conditions per place. [2025-04-26 16:37:55,876 INFO L82 GeneralOperation]: Start removeDead. Operand has 401 places, 430 transitions, 888 flow [2025-04-26 16:37:55,895 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 397 places, 422 transitions, 868 flow [2025-04-26 16:37:55,895 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 397 places, 422 transitions, 868 flow [2025-04-26 16:37:55,902 INFO L135 AmpleReduction]: Starting ample reduction