/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_10-ptrmunge_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.fix-rcfgbuilder-lbe-0ccecc1-m [2023-11-10 11:56:22,172 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-10 11:56:22,233 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-11-10 11:56:22,257 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-10 11:56:22,257 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-10 11:56:22,258 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-10 11:56:22,258 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-10 11:56:22,258 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-10 11:56:22,259 INFO L153 SettingsManager]: * Use SBE=true [2023-11-10 11:56:22,262 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-10 11:56:22,262 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-10 11:56:22,262 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-10 11:56:22,263 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-10 11:56:22,264 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-10 11:56:22,264 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-10 11:56:22,264 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-10 11:56:22,264 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-10 11:56:22,264 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-10 11:56:22,265 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-10 11:56:22,265 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-10 11:56:22,265 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-10 11:56:22,265 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-10 11:56:22,266 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-10 11:56:22,266 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-10 11:56:22,266 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-10 11:56:22,266 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:56:22,266 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-10 11:56:22,266 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-10 11:56:22,266 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-10 11:56:22,267 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-10 11:56:22,267 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-10 11:56:22,267 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-10 11:56:22,268 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-10 11:56:22,268 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-10 11:56:22,453 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-10 11:56:22,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-10 11:56:22,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-10 11:56:22,472 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-10 11:56:22,473 INFO L274 PluginConnector]: CDTParser initialized [2023-11-10 11:56:22,474 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_10-ptrmunge_racefree.i [2023-11-10 11:56:23,505 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-10 11:56:23,670 INFO L384 CDTParser]: Found 1 translation units. [2023-11-10 11:56:23,671 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_10-ptrmunge_racefree.i [2023-11-10 11:56:23,680 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/831053abf/0e112604cbcf4a4193b40cc38b84972d/FLAG84a727cf7 [2023-11-10 11:56:23,706 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/831053abf/0e112604cbcf4a4193b40cc38b84972d [2023-11-10 11:56:23,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-10 11:56:23,712 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-10 11:56:23,715 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-10 11:56:23,715 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-10 11:56:23,718 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-10 11:56:23,719 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:56:23" (1/1) ... [2023-11-10 11:56:23,720 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@241c0872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:56:23, skipping insertion in model container [2023-11-10 11:56:23,720 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:56:23" (1/1) ... [2023-11-10 11:56:23,759 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-10 11:56:24,006 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_10-ptrmunge_racefree.i[30176,30189] [2023-11-10 11:56:24,029 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:56:24,047 INFO L202 MainTranslator]: Completed pre-run [2023-11-10 11:56:24,072 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_10-ptrmunge_racefree.i[30176,30189] [2023-11-10 11:56:24,089 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:56:24,117 INFO L206 MainTranslator]: Completed translation [2023-11-10 11:56:24,117 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:56:24 WrapperNode [2023-11-10 11:56:24,118 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-10 11:56:24,118 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-10 11:56:24,118 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-10 11:56:24,119 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-10 11:56:24,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:56:24" (1/1) ... [2023-11-10 11:56:24,134 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:56:24" (1/1) ... [2023-11-10 11:56:24,151 INFO L138 Inliner]: procedures = 172, calls = 52, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 223 [2023-11-10 11:56:24,152 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-10 11:56:24,152 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-10 11:56:24,152 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-10 11:56:24,153 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-10 11:56:24,159 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:56:24" (1/1) ... [2023-11-10 11:56:24,160 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:56:24" (1/1) ... [2023-11-10 11:56:24,171 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:56:24" (1/1) ... [2023-11-10 11:56:24,172 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:56:24" (1/1) ... [2023-11-10 11:56:24,177 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:56:24" (1/1) ... [2023-11-10 11:56:24,181 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:56:24" (1/1) ... [2023-11-10 11:56:24,182 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:56:24" (1/1) ... [2023-11-10 11:56:24,183 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:56:24" (1/1) ... [2023-11-10 11:56:24,202 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-10 11:56:24,203 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-10 11:56:24,203 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-10 11:56:24,203 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-10 11:56:24,204 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:56:24" (1/1) ... [2023-11-10 11:56:24,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:56:24,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:56:24,233 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-10 11:56:24,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-10 11:56:24,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-10 11:56:24,269 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-11-10 11:56:24,269 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-11-10 11:56:24,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-10 11:56:24,269 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-10 11:56:24,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-10 11:56:24,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-10 11:56:24,270 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-11-10 11:56:24,270 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-11-10 11:56:24,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-10 11:56:24,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-10 11:56:24,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-10 11:56:24,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-10 11:56:24,272 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-10 11:56:24,399 INFO L236 CfgBuilder]: Building ICFG [2023-11-10 11:56:24,402 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-10 11:56:24,592 INFO L277 CfgBuilder]: Performing block encoding [2023-11-10 11:56:24,600 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-10 11:56:24,600 INFO L302 CfgBuilder]: Removed 24 assume(true) statements. [2023-11-10 11:56:24,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:56:24 BoogieIcfgContainer [2023-11-10 11:56:24,603 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-10 11:56:24,605 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-10 11:56:24,605 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-10 11:56:24,607 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-10 11:56:24,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 11:56:23" (1/3) ... [2023-11-10 11:56:24,607 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79692ddc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:56:24, skipping insertion in model container [2023-11-10 11:56:24,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:56:24" (2/3) ... [2023-11-10 11:56:24,608 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79692ddc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:56:24, skipping insertion in model container [2023-11-10 11:56:24,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:56:24" (3/3) ... [2023-11-10 11:56:24,609 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_10-ptrmunge_racefree.i [2023-11-10 11:56:24,620 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-10 11:56:24,621 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-10 11:56:24,621 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-10 11:56:24,712 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-10 11:56:24,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 202 places, 229 transitions, 478 flow [2023-11-10 11:56:24,815 INFO L124 PetriNetUnfolderBase]: 58/411 cut-off events. [2023-11-10 11:56:24,816 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-10 11:56:24,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 428 conditions, 411 events. 58/411 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1803 event pairs, 0 based on Foata normal form. 0/344 useless extension candidates. Maximal degree in co-relation 219. Up to 8 conditions per place. [2023-11-10 11:56:24,828 INFO L82 GeneralOperation]: Start removeDead. Operand has 202 places, 229 transitions, 478 flow [2023-11-10 11:56:24,842 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 202 places, 229 transitions, 478 flow [2023-11-10 11:56:24,854 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-10 11:56:24,858 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2352e73b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-10 11:56:24,858 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-10 11:56:24,870 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-10 11:56:24,871 INFO L124 PetriNetUnfolderBase]: 7/108 cut-off events. [2023-11-10 11:56:24,871 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-10 11:56:24,871 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:56:24,872 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:56:24,872 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-10 11:56:24,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:56:24,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1788767731, now seen corresponding path program 1 times [2023-11-10 11:56:24,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:56:24,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943827084] [2023-11-10 11:56:24,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:56:24,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:56:24,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-10 11:56:24,968 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-10 11:56:24,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-10 11:56:25,009 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-10 11:56:25,010 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-10 11:56:25,011 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2023-11-10 11:56:25,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2023-11-10 11:56:25,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2023-11-10 11:56:25,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2023-11-10 11:56:25,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2023-11-10 11:56:25,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2023-11-10 11:56:25,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-10 11:56:25,013 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-10 11:56:25,015 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-10 11:56:25,015 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-10 11:56:25,060 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-11-10 11:56:25,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 314 places, 365 transitions, 774 flow [2023-11-10 11:56:25,243 INFO L124 PetriNetUnfolderBase]: 197/1196 cut-off events. [2023-11-10 11:56:25,243 INFO L125 PetriNetUnfolderBase]: For 72/75 co-relation queries the response was YES. [2023-11-10 11:56:25,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1285 conditions, 1196 events. 197/1196 cut-off events. For 72/75 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 7400 event pairs, 2 based on Foata normal form. 0/1004 useless extension candidates. Maximal degree in co-relation 720. Up to 32 conditions per place. [2023-11-10 11:56:25,269 INFO L82 GeneralOperation]: Start removeDead. Operand has 314 places, 365 transitions, 774 flow [2023-11-10 11:56:25,310 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 314 places, 365 transitions, 774 flow [2023-11-10 11:56:25,312 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-10 11:56:25,313 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2352e73b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-10 11:56:25,313 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-10 11:56:25,336 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-10 11:56:25,336 INFO L124 PetriNetUnfolderBase]: 24/259 cut-off events. [2023-11-10 11:56:25,337 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2023-11-10 11:56:25,337 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:56:25,337 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:56:25,337 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2023-11-10 11:56:25,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:56:25,338 INFO L85 PathProgramCache]: Analyzing trace with hash -309307928, now seen corresponding path program 1 times [2023-11-10 11:56:25,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:56:25,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925485454] [2023-11-10 11:56:25,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:56:25,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:56:25,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:56:25,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:56:25,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:56:25,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925485454] [2023-11-10 11:56:25,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925485454] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:56:25,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:56:25,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-10 11:56:25,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346001902] [2023-11-10 11:56:25,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:56:26,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-10 11:56:26,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:56:26,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-10 11:56:26,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-11-10 11:56:26,034 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 365 [2023-11-10 11:56:26,041 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 365 transitions, 774 flow. Second operand has 14 states, 14 states have (on average 206.0) internal successors, (2884), 14 states have internal predecessors, (2884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:56:26,041 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:56:26,041 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 365 [2023-11-10 11:56:26,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand