/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true --cacsl2boogietranslator.check.unreachability.of.reach_error.function false -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_94-alloc_region_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 02:33:02,161 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 02:33:02,224 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 [2023-11-30 02:33:02,248 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 02:33:02,249 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 02:33:02,249 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 02:33:02,250 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 02:33:02,250 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 02:33:02,250 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 02:33:02,253 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 02:33:02,253 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 02:33:02,254 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 02:33:02,254 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 02:33:02,255 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 02:33:02,255 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 02:33:02,255 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 02:33:02,255 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 02:33:02,255 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 02:33:02,255 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 02:33:02,255 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 02:33:02,255 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 02:33:02,256 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 02:33:02,256 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 02:33:02,256 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 02:33:02,256 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 02:33:02,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 02:33:02,257 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 02:33:02,257 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 02:33:02,257 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 02:33:02,257 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 02:33:02,258 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 02:33:02,258 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 02:33:02,258 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 02:33:02,258 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2023-11-30 02:33:02,437 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 02:33:02,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 02:33:02,460 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 02:33:02,461 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 02:33:02,461 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 02:33:02,462 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_94-alloc_region_racing.i [2023-11-30 02:33:03,393 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 02:33:03,594 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 02:33:03,594 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_94-alloc_region_racing.i [2023-11-30 02:33:03,609 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/083a3f60f/9697e62de60646f5a3d8f6152e5bf738/FLAG05c91173f [2023-11-30 02:33:03,624 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/083a3f60f/9697e62de60646f5a3d8f6152e5bf738 [2023-11-30 02:33:03,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 02:33:03,626 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 02:33:03,627 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 02:33:03,627 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 02:33:03,630 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 02:33:03,631 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:33:03" (1/1) ... [2023-11-30 02:33:03,632 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7242758 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:33:03, skipping insertion in model container [2023-11-30 02:33:03,632 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:33:03" (1/1) ... [2023-11-30 02:33:03,668 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 02:33:04,068 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 02:33:04,079 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 02:33:04,163 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 02:33:04,221 INFO L206 MainTranslator]: Completed translation [2023-11-30 02:33:04,222 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:33:04 WrapperNode [2023-11-30 02:33:04,222 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 02:33:04,222 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 02:33:04,222 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 02:33:04,223 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 02:33:04,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:33:04" (1/1) ... [2023-11-30 02:33:04,242 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:33:04" (1/1) ... [2023-11-30 02:33:04,269 INFO L138 Inliner]: procedures = 378, calls = 83, calls flagged for inlining = 10, calls inlined = 11, statements flattened = 445 [2023-11-30 02:33:04,270 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 02:33:04,270 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 02:33:04,270 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 02:33:04,270 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 02:33:04,276 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:33:04" (1/1) ... [2023-11-30 02:33:04,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:33:04" (1/1) ... [2023-11-30 02:33:04,283 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:33:04" (1/1) ... [2023-11-30 02:33:04,283 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:33:04" (1/1) ... [2023-11-30 02:33:04,313 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:33:04" (1/1) ... [2023-11-30 02:33:04,317 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:33:04" (1/1) ... [2023-11-30 02:33:04,320 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:33:04" (1/1) ... [2023-11-30 02:33:04,322 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:33:04" (1/1) ... [2023-11-30 02:33:04,325 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 02:33:04,326 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 02:33:04,326 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 02:33:04,326 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 02:33:04,326 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:33:04" (1/1) ... [2023-11-30 02:33:04,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 02:33:04,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 02:33:04,352 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) [2023-11-30 02:33:04,386 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 [2023-11-30 02:33:04,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 02:33:04,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-30 02:33:04,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 02:33:04,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-30 02:33:04,400 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-30 02:33:04,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 02:33:04,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 02:33:04,401 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-30 02:33:04,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-30 02:33:04,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 02:33:04,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-30 02:33:04,401 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-30 02:33:04,401 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-30 02:33:04,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 02:33:04,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 02:33:04,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 02:33:04,404 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-30 02:33:04,548 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 02:33:04,550 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 02:33:04,933 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 02:33:04,968 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 02:33:04,969 INFO L309 CfgBuilder]: Removed 23 assume(true) statements. [2023-11-30 02:33:04,970 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:33:04 BoogieIcfgContainer [2023-11-30 02:33:04,971 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 02:33:04,972 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 02:33:04,972 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 02:33:04,974 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 02:33:04,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 02:33:03" (1/3) ... [2023-11-30 02:33:04,975 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34d55543 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:33:04, skipping insertion in model container [2023-11-30 02:33:04,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:33:04" (2/3) ... [2023-11-30 02:33:04,975 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34d55543 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:33:04, skipping insertion in model container [2023-11-30 02:33:04,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:33:04" (3/3) ... [2023-11-30 02:33:04,977 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_94-alloc_region_racing.i [2023-11-30 02:33:04,989 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 02:33:04,989 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-11-30 02:33:04,989 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 02:33:05,070 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-30 02:33:05,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 442 places, 470 transitions, 947 flow [2023-11-30 02:33:05,325 INFO L124 PetriNetUnfolderBase]: 48/686 cut-off events. [2023-11-30 02:33:05,326 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-30 02:33:05,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 691 conditions, 686 events. 48/686 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2319 event pairs, 0 based on Foata normal form. 0/593 useless extension candidates. Maximal degree in co-relation 385. Up to 8 conditions per place. [2023-11-30 02:33:05,341 INFO L82 GeneralOperation]: Start removeDead. Operand has 442 places, 470 transitions, 947 flow [2023-11-30 02:33:05,350 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 442 places, 470 transitions, 947 flow [2023-11-30 02:33:05,360 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 02:33:05,365 INFO L362 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=true, 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;@a6be4c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 02:33:05,366 INFO L363 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2023-11-30 02:33:05,371 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 02:33:05,371 INFO L124 PetriNetUnfolderBase]: 0/40 cut-off events. [2023-11-30 02:33:05,371 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 02:33:05,371 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 02:33:05,372 INFO L232 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] [2023-11-30 02:33:05,372 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-30 02:33:05,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 02:33:05,375 INFO L85 PathProgramCache]: Analyzing trace with hash 448759098, now seen corresponding path program 1 times [2023-11-30 02:33:05,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 02:33:05,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439278667] [2023-11-30 02:33:05,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 02:33:05,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 02:33:05,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 02:33:05,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 02:33:05,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 02:33:05,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439278667] [2023-11-30 02:33:05,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439278667] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 02:33:05,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 02:33:05,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 02:33:05,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257417382] [2023-11-30 02:33:05,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 02:33:05,839 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 02:33:05,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 02:33:05,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 02:33:05,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-30 02:33:05,859 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 470 [2023-11-30 02:33:05,863 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 442 places, 470 transitions, 947 flow. Second operand has 6 states, 6 states have (on average 241.66666666666666) internal successors, (1450), 6 states have internal predecessors, (1450), 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) [2023-11-30 02:33:05,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 02:33:05,863 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 470 [2023-11-30 02:33:05,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 02:33:09,257 INFO L124 PetriNetUnfolderBase]: 7132/21290 cut-off events. [2023-11-30 02:33:09,257 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-30 02:33:09,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35455 conditions, 21290 events. 7132/21290 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 195817 event pairs, 6887 based on Foata normal form. 1759/20568 useless extension candidates. Maximal degree in co-relation 35038. Up to 14155 conditions per place. [2023-11-30 02:33:09,349 INFO L140 encePairwiseOnDemand]: 437/470 looper letters, 195 selfloop transitions, 5 changer transitions 0/436 dead transitions. [2023-11-30 02:33:09,349 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 436 transitions, 1279 flow [2023-11-30 02:33:09,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 02:33:09,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 02:33:09,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1668 transitions. [2023-11-30 02:33:09,364 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5914893617021276 [2023-11-30 02:33:09,365 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1668 transitions. [2023-11-30 02:33:09,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1668 transitions. [2023-11-30 02:33:09,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 02:33:09,369 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1668 transitions. [2023-11-30 02:33:09,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 278.0) internal successors, (1668), 6 states have internal predecessors, (1668), 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) [2023-11-30 02:33:09,381 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 470.0) internal successors, (3290), 7 states have internal predecessors, (3290), 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) [2023-11-30 02:33:09,383 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 470.0) internal successors, (3290), 7 states have internal predecessors, (3290), 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) [2023-11-30 02:33:09,385 INFO L307 CegarLoopForPetriNet]: 442 programPoint places, -2 predicate places. [2023-11-30 02:33:09,385 INFO L500 AbstractCegarLoop]: Abstraction has has 440 places, 436 transitions, 1279 flow [2023-11-30 02:33:09,386 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 241.66666666666666) internal successors, (1450), 6 states have internal predecessors, (1450), 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) [2023-11-30 02:33:09,386 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 02:33:09,386 INFO L232 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] [2023-11-30 02:33:09,386 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 02:33:09,386 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-30 02:33:09,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 02:33:09,387 INFO L85 PathProgramCache]: Analyzing trace with hash 341592347, now seen corresponding path program 1 times [2023-11-30 02:33:09,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 02:33:09,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566529311] [2023-11-30 02:33:09,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 02:33:09,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 02:33:09,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 02:33:09,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 02:33:09,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 02:33:09,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566529311] [2023-11-30 02:33:09,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566529311] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 02:33:09,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 02:33:09,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 02:33:09,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028190132] [2023-11-30 02:33:09,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 02:33:09,606 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 02:33:09,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 02:33:09,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 02:33:09,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-30 02:33:09,608 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 470 [2023-11-30 02:33:09,610 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 436 transitions, 1279 flow. Second operand has 6 states, 6 states have (on average 246.33333333333334) internal successors, (1478), 6 states have internal predecessors, (1478), 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) [2023-11-30 02:33:09,610 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 02:33:09,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 470 [2023-11-30 02:33:09,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 02:33:14,533 INFO L124 PetriNetUnfolderBase]: 9969/30185 cut-off events. [2023-11-30 02:33:14,534 INFO L125 PetriNetUnfolderBase]: For 3285/4827 co-relation queries the response was YES. [2023-11-30 02:33:14,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69858 conditions, 30185 events. 9969/30185 cut-off events. For 3285/4827 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 302550 event pairs, 4094 based on Foata normal form. 0/26714 useless extension candidates. Maximal degree in co-relation 69160. Up to 19903 conditions per place. [2023-11-30 02:33:14,674 INFO L140 encePairwiseOnDemand]: 433/470 looper letters, 412 selfloop transitions, 107 changer transitions 0/759 dead transitions. [2023-11-30 02:33:14,675 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 759 transitions, 3612 flow [2023-11-30 02:33:14,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 02:33:14,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 02:33:14,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1985 transitions. [2023-11-30 02:33:14,678 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7039007092198581 [2023-11-30 02:33:14,678 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1985 transitions. [2023-11-30 02:33:14,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1985 transitions. [2023-11-30 02:33:14,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 02:33:14,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1985 transitions. [2023-11-30 02:33:14,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 330.8333333333333) internal successors, (1985), 6 states have internal predecessors, (1985), 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) [2023-11-30 02:33:14,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 470.0) internal successors, (3290), 7 states have internal predecessors, (3290), 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) [2023-11-30 02:33:14,687 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 470.0) internal successors, (3290), 7 states have internal predecessors, (3290), 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) [2023-11-30 02:33:14,689 INFO L307 CegarLoopForPetriNet]: 442 programPoint places, 2 predicate places. [2023-11-30 02:33:14,690 INFO L500 AbstractCegarLoop]: Abstraction has has 444 places, 759 transitions, 3612 flow [2023-11-30 02:33:14,690 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 246.33333333333334) internal successors, (1478), 6 states have internal predecessors, (1478), 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) [2023-11-30 02:33:14,690 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 02:33:14,690 INFO L232 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] [2023-11-30 02:33:14,691 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 02:33:14,691 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-30 02:33:14,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 02:33:14,692 INFO L85 PathProgramCache]: Analyzing trace with hash -656843951, now seen corresponding path program 1 times [2023-11-30 02:33:14,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 02:33:14,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618261064] [2023-11-30 02:33:14,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 02:33:14,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 02:33:14,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 02:33:14,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 02:33:14,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 02:33:14,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618261064] [2023-11-30 02:33:14,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618261064] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 02:33:14,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 02:33:14,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 02:33:14,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351657366] [2023-11-30 02:33:14,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 02:33:14,938 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 02:33:14,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 02:33:14,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 02:33:14,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-30 02:33:14,940 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 470 [2023-11-30 02:33:14,943 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 759 transitions, 3612 flow. Second operand has 6 states, 6 states have (on average 240.16666666666666) internal successors, (1441), 6 states have internal predecessors, (1441), 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) [2023-11-30 02:33:14,944 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 02:33:14,944 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 470 [2023-11-30 02:33:14,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 02:33:20,079 INFO L124 PetriNetUnfolderBase]: 10815/32328 cut-off events. [2023-11-30 02:33:20,080 INFO L125 PetriNetUnfolderBase]: For 10317/13803 co-relation queries the response was YES. [2023-11-30 02:33:20,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95423 conditions, 32328 events. 10815/32328 cut-off events. For 10317/13803 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 321993 event pairs, 4195 based on Foata normal form. 0/28728 useless extension candidates. Maximal degree in co-relation 94565. Up to 21030 conditions per place. [2023-11-30 02:33:20,517 INFO L140 encePairwiseOnDemand]: 417/470 looper letters, 635 selfloop transitions, 171 changer transitions 0/1043 dead transitions. [2023-11-30 02:33:20,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 448 places, 1043 transitions, 6924 flow [2023-11-30 02:33:20,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 02:33:20,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 02:33:20,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1910 transitions. [2023-11-30 02:33:20,522 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6773049645390071 [2023-11-30 02:33:20,522 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1910 transitions. [2023-11-30 02:33:20,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1910 transitions. [2023-11-30 02:33:20,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 02:33:20,523 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1910 transitions. [2023-11-30 02:33:20,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 318.3333333333333) internal successors, (1910), 6 states have internal predecessors, (1910), 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) [2023-11-30 02:33:20,529 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 470.0) internal successors, (3290), 7 states have internal predecessors, (3290), 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) [2023-11-30 02:33:20,531 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 470.0) internal successors, (3290), 7 states have internal predecessors, (3290), 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) [2023-11-30 02:33:20,532 INFO L307 CegarLoopForPetriNet]: 442 programPoint places, 6 predicate places. [2023-11-30 02:33:20,532 INFO L500 AbstractCegarLoop]: Abstraction has has 448 places, 1043 transitions, 6924 flow [2023-11-30 02:33:20,533 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 240.16666666666666) internal successors, (1441), 6 states have internal predecessors, (1441), 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) [2023-11-30 02:33:20,533 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 02:33:20,533 INFO L232 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 02:33:20,533 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 02:33:20,533 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-30 02:33:20,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 02:33:20,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1691140256, now seen corresponding path program 1 times [2023-11-30 02:33:20,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 02:33:20,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784943821] [2023-11-30 02:33:20,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 02:33:20,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 02:33:20,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 02:33:20,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 02:33:20,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 02:33:20,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784943821] [2023-11-30 02:33:20,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784943821] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 02:33:20,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 02:33:20,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 02:33:20,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50316488] [2023-11-30 02:33:20,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 02:33:20,847 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 02:33:20,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 02:33:20,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 02:33:20,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-30 02:33:20,850 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 470 [2023-11-30 02:33:20,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 1043 transitions, 6924 flow. Second operand has 6 states, 6 states have (on average 241.16666666666666) internal successors, (1447), 6 states have internal predecessors, (1447), 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) [2023-11-30 02:33:20,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 02:33:20,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 470 [2023-11-30 02:33:20,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 02:33:27,675 INFO L124 PetriNetUnfolderBase]: 11306/33448 cut-off events. [2023-11-30 02:33:27,675 INFO L125 PetriNetUnfolderBase]: For 21948/29522 co-relation queries the response was YES. [2023-11-30 02:33:27,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120785 conditions, 33448 events. 11306/33448 cut-off events. For 21948/29522 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 332327 event pairs, 3946 based on Foata normal form. 0/29775 useless extension candidates. Maximal degree in co-relation 119771. Up to 21802 conditions per place. [2023-11-30 02:33:27,913 INFO L140 encePairwiseOnDemand]: 417/470 looper letters, 918 selfloop transitions, 171 changer transitions 0/1327 dead transitions. [2023-11-30 02:33:27,914 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 1327 transitions, 11368 flow [2023-11-30 02:33:27,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 02:33:27,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 02:33:27,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1909 transitions. [2023-11-30 02:33:27,918 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.676950354609929 [2023-11-30 02:33:27,918 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1909 transitions. [2023-11-30 02:33:27,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1909 transitions. [2023-11-30 02:33:27,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 02:33:27,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1909 transitions. [2023-11-30 02:33:27,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 318.1666666666667) internal successors, (1909), 6 states have internal predecessors, (1909), 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) [2023-11-30 02:33:27,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 470.0) internal successors, (3290), 7 states have internal predecessors, (3290), 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) [2023-11-30 02:33:27,926 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 470.0) internal successors, (3290), 7 states have internal predecessors, (3290), 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) [2023-11-30 02:33:27,927 INFO L307 CegarLoopForPetriNet]: 442 programPoint places, 10 predicate places. [2023-11-30 02:33:27,927 INFO L500 AbstractCegarLoop]: Abstraction has has 452 places, 1327 transitions, 11368 flow [2023-11-30 02:33:27,927 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 241.16666666666666) internal successors, (1447), 6 states have internal predecessors, (1447), 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) [2023-11-30 02:33:27,927 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 02:33:27,928 INFO L232 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, 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] [2023-11-30 02:33:27,928 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-30 02:33:27,928 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-30 02:33:27,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 02:33:27,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1002352148, now seen corresponding path program 1 times [2023-11-30 02:33:27,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 02:33:27,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606053600] [2023-11-30 02:33:27,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 02:33:27,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 02:33:27,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-30 02:33:27,965 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-30 02:33:27,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-30 02:33:28,011 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-30 02:33:28,012 INFO L372 BasicCegarLoop]: Counterexample is feasible [2023-11-30 02:33:28,012 INFO L810 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 39 remaining) [2023-11-30 02:33:28,013 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (37 of 39 remaining) [2023-11-30 02:33:28,014 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (36 of 39 remaining) [2023-11-30 02:33:28,014 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (35 of 39 remaining) [2023-11-30 02:33:28,014 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (34 of 39 remaining) [2023-11-30 02:33:28,014 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (33 of 39 remaining) [2023-11-30 02:33:28,014 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (32 of 39 remaining) [2023-11-30 02:33:28,014 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (31 of 39 remaining) [2023-11-30 02:33:28,015 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (30 of 39 remaining) [2023-11-30 02:33:28,015 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (29 of 39 remaining) [2023-11-30 02:33:28,015 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (28 of 39 remaining) [2023-11-30 02:33:28,015 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (27 of 39 remaining) [2023-11-30 02:33:28,015 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (26 of 39 remaining) [2023-11-30 02:33:28,015 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (25 of 39 remaining) [2023-11-30 02:33:28,015 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (24 of 39 remaining) [2023-11-30 02:33:28,015 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (23 of 39 remaining) [2023-11-30 02:33:28,015 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (22 of 39 remaining) [2023-11-30 02:33:28,016 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (21 of 39 remaining) [2023-11-30 02:33:28,016 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (20 of 39 remaining) [2023-11-30 02:33:28,016 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (19 of 39 remaining) [2023-11-30 02:33:28,016 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (18 of 39 remaining) [2023-11-30 02:33:28,016 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (17 of 39 remaining) [2023-11-30 02:33:28,016 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (16 of 39 remaining) [2023-11-30 02:33:28,017 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (15 of 39 remaining) [2023-11-30 02:33:28,017 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9ASSERT_VIOLATIONDATA_RACE (14 of 39 remaining) [2023-11-30 02:33:28,019 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (13 of 39 remaining) [2023-11-30 02:33:28,020 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (12 of 39 remaining) [2023-11-30 02:33:28,020 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (11 of 39 remaining) [2023-11-30 02:33:28,020 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (10 of 39 remaining) [2023-11-30 02:33:28,020 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (9 of 39 remaining) [2023-11-30 02:33:28,020 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (8 of 39 remaining) [2023-11-30 02:33:28,020 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 39 remaining) [2023-11-30 02:33:28,020 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (6 of 39 remaining) [2023-11-30 02:33:28,020 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (5 of 39 remaining) [2023-11-30 02:33:28,021 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9ASSERT_VIOLATIONDATA_RACE (4 of 39 remaining) [2023-11-30 02:33:28,021 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (3 of 39 remaining) [2023-11-30 02:33:28,021 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (2 of 39 remaining) [2023-11-30 02:33:28,021 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (1 of 39 remaining) [2023-11-30 02:33:28,021 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (0 of 39 remaining) [2023-11-30 02:33:28,021 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-30 02:33:28,022 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-30 02:33:28,024 WARN L227 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-30 02:33:28,026 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-30 02:33:28,096 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-30 02:33:28,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 596 places, 636 transitions, 1288 flow [2023-11-30 02:33:28,283 INFO L124 PetriNetUnfolderBase]: 81/1100 cut-off events. [2023-11-30 02:33:28,284 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-30 02:33:28,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1112 conditions, 1100 events. 81/1100 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 5117 event pairs, 0 based on Foata normal form. 0/948 useless extension candidates. Maximal degree in co-relation 688. Up to 12 conditions per place. [2023-11-30 02:33:28,306 INFO L82 GeneralOperation]: Start removeDead. Operand has 596 places, 636 transitions, 1288 flow [2023-11-30 02:33:28,315 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 596 places, 636 transitions, 1288 flow [2023-11-30 02:33:28,316 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 02:33:28,317 INFO L362 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=true, 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;@a6be4c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 02:33:28,317 INFO L363 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2023-11-30 02:33:28,319 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 02:33:28,319 INFO L124 PetriNetUnfolderBase]: 0/40 cut-off events. [2023-11-30 02:33:28,319 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 02:33:28,320 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 02:33:28,320 INFO L232 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] [2023-11-30 02:33:28,320 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-30 02:33:28,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 02:33:28,320 INFO L85 PathProgramCache]: Analyzing trace with hash -2074848842, now seen corresponding path program 1 times [2023-11-30 02:33:28,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 02:33:28,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344087705] [2023-11-30 02:33:28,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 02:33:28,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 02:33:28,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 02:33:28,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 02:33:28,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 02:33:28,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344087705] [2023-11-30 02:33:28,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344087705] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 02:33:28,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 02:33:28,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 02:33:28,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854008396] [2023-11-30 02:33:28,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 02:33:28,531 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 02:33:28,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 02:33:28,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 02:33:28,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-30 02:33:28,534 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 320 out of 636 [2023-11-30 02:33:28,536 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 596 places, 636 transitions, 1288 flow. Second operand has 6 states, 6 states have (on average 321.6666666666667) internal successors, (1930), 6 states have internal predecessors, (1930), 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) [2023-11-30 02:33:28,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 02:33:28,536 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 320 of 636 [2023-11-30 02:33:28,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand