/usr/bin/java -Xmx16000000000 -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-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/pthread-complex/safestack_relacy.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 02:34:34,670 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 02:34:34,738 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-VariableLbe.epf [2023-08-25 02:34:34,741 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 02:34:34,742 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 02:34:34,773 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 02:34:34,773 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 02:34:34,774 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 02:34:34,774 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 02:34:34,777 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 02:34:34,777 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 02:34:34,778 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 02:34:34,778 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 02:34:34,778 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 02:34:34,779 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 02:34:34,779 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 02:34:34,779 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 02:34:34,779 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 02:34:34,779 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 02:34:34,779 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 02:34:34,779 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 02:34:34,780 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 02:34:34,781 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 02:34:34,781 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 02:34:34,781 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 02:34:34,781 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 02:34:34,781 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 02:34:34,782 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 02:34:34,782 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 02:34:34,782 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 02:34:34,783 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 02:34:34,783 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 02:34:34,783 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 02:34:34,783 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 02:34:34,783 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 02:34:34,783 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 02:34:35,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 02:34:35,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 02:34:35,062 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 02:34:35,063 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 02:34:35,063 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 02:34:35,064 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-complex/safestack_relacy.i [2023-08-25 02:34:36,181 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 02:34:36,485 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 02:34:36,486 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/safestack_relacy.i [2023-08-25 02:34:36,504 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a8229978/23edd6b02ff54d9cb800e4d73dee21a9/FLAG25ba83614 [2023-08-25 02:34:36,517 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a8229978/23edd6b02ff54d9cb800e4d73dee21a9 [2023-08-25 02:34:36,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 02:34:36,523 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 02:34:36,524 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 02:34:36,525 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 02:34:36,526 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 02:34:36,527 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 02:34:36" (1/1) ... [2023-08-25 02:34:36,528 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@278de03e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:34:36, skipping insertion in model container [2023-08-25 02:34:36,528 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 02:34:36" (1/1) ... [2023-08-25 02:34:36,583 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 02:34:37,135 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 02:34:37,145 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 02:34:37,155 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [127] [2023-08-25 02:34:37,170 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [573] [2023-08-25 02:34:37,170 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [574] [2023-08-25 02:34:37,196 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 02:34:37,311 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 02:34:37,311 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 02:34:37,316 INFO L206 MainTranslator]: Completed translation [2023-08-25 02:34:37,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:34:37 WrapperNode [2023-08-25 02:34:37,316 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 02:34:37,317 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 02:34:37,317 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 02:34:37,317 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 02:34:37,322 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:34:37" (1/1) ... [2023-08-25 02:34:37,355 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:34:37" (1/1) ... [2023-08-25 02:34:37,402 INFO L138 Inliner]: procedures = 481, calls = 75, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 477 [2023-08-25 02:34:37,402 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 02:34:37,403 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 02:34:37,403 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 02:34:37,403 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 02:34:37,411 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:34:37" (1/1) ... [2023-08-25 02:34:37,411 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:34:37" (1/1) ... [2023-08-25 02:34:37,416 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:34:37" (1/1) ... [2023-08-25 02:34:37,416 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:34:37" (1/1) ... [2023-08-25 02:34:37,437 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:34:37" (1/1) ... [2023-08-25 02:34:37,440 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:34:37" (1/1) ... [2023-08-25 02:34:37,443 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:34:37" (1/1) ... [2023-08-25 02:34:37,445 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:34:37" (1/1) ... [2023-08-25 02:34:37,450 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 02:34:37,451 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 02:34:37,451 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 02:34:37,451 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 02:34:37,451 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:34:37" (1/1) ... [2023-08-25 02:34:37,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 02:34:37,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 02:34:37,472 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) [2023-08-25 02:34:37,474 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 [2023-08-25 02:34:37,494 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 02:34:37,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 02:34:37,494 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 02:34:37,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 02:34:37,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 02:34:37,494 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-08-25 02:34:37,494 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-08-25 02:34:37,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 02:34:37,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 02:34:37,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 02:34:37,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 02:34:37,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 02:34:37,496 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 02:34:37,741 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 02:34:37,743 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 02:34:38,285 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 02:34:38,489 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 02:34:38,489 INFO L302 CfgBuilder]: Removed 7 assume(true) statements. [2023-08-25 02:34:38,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 02:34:38 BoogieIcfgContainer [2023-08-25 02:34:38,492 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 02:34:38,494 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 02:34:38,494 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 02:34:38,496 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 02:34:38,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 02:34:36" (1/3) ... [2023-08-25 02:34:38,498 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c39b5d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 02:34:38, skipping insertion in model container [2023-08-25 02:34:38,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:34:37" (2/3) ... [2023-08-25 02:34:38,498 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c39b5d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 02:34:38, skipping insertion in model container [2023-08-25 02:34:38,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 02:34:38" (3/3) ... [2023-08-25 02:34:38,499 INFO L112 eAbstractionObserver]: Analyzing ICFG safestack_relacy.i [2023-08-25 02:34:38,538 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 02:34:38,539 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2023-08-25 02:34:38,539 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 02:34:38,640 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-25 02:34:38,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 309 places, 324 transitions, 656 flow [2023-08-25 02:34:38,788 INFO L124 PetriNetUnfolderBase]: 20/344 cut-off events. [2023-08-25 02:34:38,789 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 02:34:38,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 350 conditions, 344 events. 20/344 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 689 event pairs, 0 based on Foata normal form. 0/287 useless extension candidates. Maximal degree in co-relation 254. Up to 4 conditions per place. [2023-08-25 02:34:38,798 INFO L82 GeneralOperation]: Start removeDead. Operand has 309 places, 324 transitions, 656 flow [2023-08-25 02:34:38,805 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 309 places, 324 transitions, 656 flow [2023-08-25 02:34:38,808 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 02:34:38,816 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 309 places, 324 transitions, 656 flow [2023-08-25 02:34:38,819 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 309 places, 324 transitions, 656 flow [2023-08-25 02:34:38,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 309 places, 324 transitions, 656 flow [2023-08-25 02:34:38,865 INFO L124 PetriNetUnfolderBase]: 20/344 cut-off events. [2023-08-25 02:34:38,865 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 02:34:38,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 350 conditions, 344 events. 20/344 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 689 event pairs, 0 based on Foata normal form. 0/287 useless extension candidates. Maximal degree in co-relation 254. Up to 4 conditions per place. [2023-08-25 02:34:38,873 INFO L119 LiptonReduction]: Number of co-enabled transitions 11908 [2023-08-25 02:35:38,246 INFO L134 LiptonReduction]: Checked pairs total: 31863 [2023-08-25 02:35:38,246 INFO L136 LiptonReduction]: Total number of compositions: 315 [2023-08-25 02:35:38,256 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 02:35:38,260 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=LoopsAndPotentialCycles, 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;@487e67fe, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 02:35:38,260 INFO L358 AbstractCegarLoop]: Starting to check reachability of 62 error locations. [2023-08-25 02:35:38,261 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 02:35:38,261 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 02:35:38,261 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 02:35:38,261 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:35:38,261 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 02:35:38,262 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2023-08-25 02:35:38,264 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:35:38,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1750, now seen corresponding path program 1 times [2023-08-25 02:35:38,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:35:38,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348651311] [2023-08-25 02:35:38,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:35:38,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:35:38,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:35:38,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 02:35:38,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:35:38,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348651311] [2023-08-25 02:35:38,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348651311] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:35:38,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:35:38,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 02:35:38,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686935923] [2023-08-25 02:35:38,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:35:38,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 02:35:38,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:35:38,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 02:35:38,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 02:35:38,451 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 275 out of 639 [2023-08-25 02:35:38,456 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 108 transitions, 224 flow. Second operand has 2 states, 2 states have (on average 275.5) internal successors, (551), 2 states have internal predecessors, (551), 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) [2023-08-25 02:35:38,456 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:35:38,456 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 275 of 639 [2023-08-25 02:35:38,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:35:38,639 INFO L124 PetriNetUnfolderBase]: 153/503 cut-off events. [2023-08-25 02:35:38,639 INFO L125 PetriNetUnfolderBase]: For 3/8 co-relation queries the response was YES. [2023-08-25 02:35:38,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 814 conditions, 503 events. 153/503 cut-off events. For 3/8 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2070 event pairs, 115 based on Foata normal form. 12/414 useless extension candidates. Maximal degree in co-relation 780. Up to 305 conditions per place. [2023-08-25 02:35:38,641 INFO L140 encePairwiseOnDemand]: 610/639 looper letters, 40 selfloop transitions, 0 changer transitions 0/78 dead transitions. [2023-08-25 02:35:38,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 78 transitions, 244 flow [2023-08-25 02:35:38,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 02:35:38,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 02:35:38,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 619 transitions. [2023-08-25 02:35:38,658 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4843505477308294 [2023-08-25 02:35:38,658 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 619 transitions. [2023-08-25 02:35:38,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 619 transitions. [2023-08-25 02:35:38,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:35:38,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 619 transitions. [2023-08-25 02:35:38,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 309.5) internal successors, (619), 2 states have internal predecessors, (619), 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) [2023-08-25 02:35:38,670 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 639.0) internal successors, (1917), 3 states have internal predecessors, (1917), 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) [2023-08-25 02:35:38,670 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 639.0) internal successors, (1917), 3 states have internal predecessors, (1917), 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) [2023-08-25 02:35:38,671 INFO L175 Difference]: Start difference. First operand has 99 places, 108 transitions, 224 flow. Second operand 2 states and 619 transitions. [2023-08-25 02:35:38,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 78 transitions, 244 flow [2023-08-25 02:35:38,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 78 transitions, 244 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 02:35:38,675 INFO L231 Difference]: Finished difference. Result has 74 places, 78 transitions, 164 flow [2023-08-25 02:35:38,676 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=639, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=164, PETRI_PLACES=74, PETRI_TRANSITIONS=78} [2023-08-25 02:35:38,680 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -25 predicate places. [2023-08-25 02:35:38,680 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 78 transitions, 164 flow [2023-08-25 02:35:38,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 275.5) internal successors, (551), 2 states have internal predecessors, (551), 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) [2023-08-25 02:35:38,680 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:35:38,680 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1] [2023-08-25 02:35:38,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 02:35:38,682 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2023-08-25 02:35:38,689 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:35:38,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1931732883, now seen corresponding path program 1 times [2023-08-25 02:35:38,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:35:38,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680982822] [2023-08-25 02:35:38,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:35:38,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:35:38,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:35:38,944 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 02:35:38,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:35:38,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680982822] [2023-08-25 02:35:38,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680982822] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:35:38,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:35:38,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 02:35:38,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731921130] [2023-08-25 02:35:38,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:35:38,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 02:35:38,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:35:38,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 02:35:38,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 02:35:38,956 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 639 [2023-08-25 02:35:38,957 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 78 transitions, 164 flow. Second operand has 3 states, 3 states have (on average 265.6666666666667) internal successors, (797), 3 states have internal predecessors, (797), 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) [2023-08-25 02:35:38,957 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:35:38,957 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 639 [2023-08-25 02:35:38,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:35:39,214 INFO L124 PetriNetUnfolderBase]: 153/504 cut-off events. [2023-08-25 02:35:39,215 INFO L125 PetriNetUnfolderBase]: For 3/8 co-relation queries the response was YES. [2023-08-25 02:35:39,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 817 conditions, 504 events. 153/504 cut-off events. For 3/8 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2070 event pairs, 115 based on Foata normal form. 0/403 useless extension candidates. Maximal degree in co-relation 813. Up to 305 conditions per place. [2023-08-25 02:35:39,217 INFO L140 encePairwiseOnDemand]: 636/639 looper letters, 39 selfloop transitions, 2 changer transitions 0/79 dead transitions. [2023-08-25 02:35:39,217 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 79 transitions, 248 flow [2023-08-25 02:35:39,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 02:35:39,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 02:35:39,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 834 transitions. [2023-08-25 02:35:39,223 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4350547730829421 [2023-08-25 02:35:39,223 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 834 transitions. [2023-08-25 02:35:39,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 834 transitions. [2023-08-25 02:35:39,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:35:39,224 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 834 transitions. [2023-08-25 02:35:39,226 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 278.0) internal successors, (834), 3 states have internal predecessors, (834), 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) [2023-08-25 02:35:39,228 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 639.0) internal successors, (2556), 4 states have internal predecessors, (2556), 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) [2023-08-25 02:35:39,229 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 639.0) internal successors, (2556), 4 states have internal predecessors, (2556), 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) [2023-08-25 02:35:39,230 INFO L175 Difference]: Start difference. First operand has 74 places, 78 transitions, 164 flow. Second operand 3 states and 834 transitions. [2023-08-25 02:35:39,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 79 transitions, 248 flow [2023-08-25 02:35:39,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 79 transitions, 248 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 02:35:39,232 INFO L231 Difference]: Finished difference. Result has 77 places, 79 transitions, 176 flow [2023-08-25 02:35:39,232 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=639, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=77, PETRI_TRANSITIONS=79} [2023-08-25 02:35:39,233 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -22 predicate places. [2023-08-25 02:35:39,233 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 79 transitions, 176 flow [2023-08-25 02:35:39,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 265.6666666666667) internal successors, (797), 3 states have internal predecessors, (797), 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) [2023-08-25 02:35:39,233 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:35:39,234 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-08-25 02:35:39,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 02:35:39,234 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2023-08-25 02:35:39,234 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:35:39,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1582977902, now seen corresponding path program 1 times [2023-08-25 02:35:39,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:35:39,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117462157] [2023-08-25 02:35:39,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:35:39,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:35:39,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:35:39,388 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 02:35:39,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:35:39,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117462157] [2023-08-25 02:35:39,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117462157] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 02:35:39,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706123767] [2023-08-25 02:35:39,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:35:39,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 02:35:39,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 02:35:39,393 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 02:35:39,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-25 02:35:39,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:35:39,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-25 02:35:39,566 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 02:35:39,624 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 02:35:39,625 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 02:35:39,643 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 02:35:39,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706123767] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 02:35:39,643 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 02:35:39,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-25 02:35:39,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849670825] [2023-08-25 02:35:39,643 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 02:35:39,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 02:35:39,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:35:39,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 02:35:39,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2023-08-25 02:35:39,646 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 639 [2023-08-25 02:35:39,647 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 79 transitions, 176 flow. Second operand has 7 states, 7 states have (on average 265.57142857142856) internal successors, (1859), 7 states have internal predecessors, (1859), 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) [2023-08-25 02:35:39,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:35:39,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 639 [2023-08-25 02:35:39,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:35:39,908 INFO L124 PetriNetUnfolderBase]: 153/505 cut-off events. [2023-08-25 02:35:39,908 INFO L125 PetriNetUnfolderBase]: For 3/8 co-relation queries the response was YES. [2023-08-25 02:35:39,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 827 conditions, 505 events. 153/505 cut-off events. For 3/8 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2070 event pairs, 115 based on Foata normal form. 0/404 useless extension candidates. Maximal degree in co-relation 821. Up to 305 conditions per place. [2023-08-25 02:35:39,911 INFO L140 encePairwiseOnDemand]: 636/639 looper letters, 39 selfloop transitions, 3 changer transitions 0/80 dead transitions. [2023-08-25 02:35:39,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 80 transitions, 264 flow [2023-08-25 02:35:39,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 02:35:39,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 02:35:39,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1099 transitions. [2023-08-25 02:35:39,921 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42996870109546165 [2023-08-25 02:35:39,921 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1099 transitions. [2023-08-25 02:35:39,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1099 transitions. [2023-08-25 02:35:39,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:35:39,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1099 transitions. [2023-08-25 02:35:39,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 274.75) internal successors, (1099), 4 states have internal predecessors, (1099), 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) [2023-08-25 02:35:39,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 639.0) internal successors, (3195), 5 states have internal predecessors, (3195), 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) [2023-08-25 02:35:39,929 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 639.0) internal successors, (3195), 5 states have internal predecessors, (3195), 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) [2023-08-25 02:35:39,930 INFO L175 Difference]: Start difference. First operand has 77 places, 79 transitions, 176 flow. Second operand 4 states and 1099 transitions. [2023-08-25 02:35:39,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 80 transitions, 264 flow [2023-08-25 02:35:39,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 80 transitions, 260 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-25 02:35:39,932 INFO L231 Difference]: Finished difference. Result has 80 places, 80 transitions, 188 flow [2023-08-25 02:35:39,932 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=639, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=188, PETRI_PLACES=80, PETRI_TRANSITIONS=80} [2023-08-25 02:35:39,933 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -19 predicate places. [2023-08-25 02:35:39,933 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 80 transitions, 188 flow [2023-08-25 02:35:39,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 265.57142857142856) internal successors, (1859), 7 states have internal predecessors, (1859), 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) [2023-08-25 02:35:39,935 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:35:39,935 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2023-08-25 02:35:39,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-25 02:35:40,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 02:35:40,141 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2023-08-25 02:35:40,142 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:35:40,142 INFO L85 PathProgramCache]: Analyzing trace with hash 638491917, now seen corresponding path program 2 times [2023-08-25 02:35:40,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:35:40,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840671247] [2023-08-25 02:35:40,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:35:40,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:35:40,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 02:35:40,187 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 02:35:40,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 02:35:40,255 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 02:35:40,256 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 02:35:40,257 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (61 of 62 remaining) [2023-08-25 02:35:40,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (60 of 62 remaining) [2023-08-25 02:35:40,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (59 of 62 remaining) [2023-08-25 02:35:40,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (58 of 62 remaining) [2023-08-25 02:35:40,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (57 of 62 remaining) [2023-08-25 02:35:40,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (56 of 62 remaining) [2023-08-25 02:35:40,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr14ASSERT_VIOLATIONDATA_RACE (55 of 62 remaining) [2023-08-25 02:35:40,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (54 of 62 remaining) [2023-08-25 02:35:40,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr15ASSERT_VIOLATIONDATA_RACE (53 of 62 remaining) [2023-08-25 02:35:40,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr16ASSERT_VIOLATIONASSERT (52 of 62 remaining) [2023-08-25 02:35:40,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (51 of 62 remaining) [2023-08-25 02:35:40,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr17ASSERT_VIOLATIONDATA_RACE (50 of 62 remaining) [2023-08-25 02:35:40,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (49 of 62 remaining) [2023-08-25 02:35:40,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (48 of 62 remaining) [2023-08-25 02:35:40,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr18ASSERT_VIOLATIONDATA_RACE (47 of 62 remaining) [2023-08-25 02:35:40,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr25ASSERT_VIOLATIONDATA_RACE (46 of 62 remaining) [2023-08-25 02:35:40,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr26ASSERT_VIOLATIONDATA_RACE (45 of 62 remaining) [2023-08-25 02:35:40,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr27ASSERT_VIOLATIONDATA_RACE (44 of 62 remaining) [2023-08-25 02:35:40,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr19ASSERT_VIOLATIONDATA_RACE (43 of 62 remaining) [2023-08-25 02:35:40,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (42 of 62 remaining) [2023-08-25 02:35:40,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (41 of 62 remaining) [2023-08-25 02:35:40,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr6ASSERT_VIOLATIONDATA_RACE (40 of 62 remaining) [2023-08-25 02:35:40,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr7ASSERT_VIOLATIONDATA_RACE (39 of 62 remaining) [2023-08-25 02:35:40,267 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr8ASSERT_VIOLATIONDATA_RACE (38 of 62 remaining) [2023-08-25 02:35:40,267 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr20ASSERT_VIOLATIONDATA_RACE (37 of 62 remaining) [2023-08-25 02:35:40,267 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr21ASSERT_VIOLATIONDATA_RACE (36 of 62 remaining) [2023-08-25 02:35:40,267 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr22ASSERT_VIOLATIONDATA_RACE (35 of 62 remaining) [2023-08-25 02:35:40,268 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr23ASSERT_VIOLATIONDATA_RACE (34 of 62 remaining) [2023-08-25 02:35:40,268 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr24ASSERT_VIOLATIONDATA_RACE (33 of 62 remaining) [2023-08-25 02:35:40,268 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr9ASSERT_VIOLATIONDATA_RACE (32 of 62 remaining) [2023-08-25 02:35:40,268 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr10ASSERT_VIOLATIONDATA_RACE (31 of 62 remaining) [2023-08-25 02:35:40,268 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr11ASSERT_VIOLATIONDATA_RACE (30 of 62 remaining) [2023-08-25 02:35:40,268 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr12ASSERT_VIOLATIONDATA_RACE (29 of 62 remaining) [2023-08-25 02:35:40,268 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr13ASSERT_VIOLATIONDATA_RACE (28 of 62 remaining) [2023-08-25 02:35:40,268 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr14ASSERT_VIOLATIONDATA_RACE (27 of 62 remaining) [2023-08-25 02:35:40,268 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (26 of 62 remaining) [2023-08-25 02:35:40,268 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr15ASSERT_VIOLATIONDATA_RACE (25 of 62 remaining) [2023-08-25 02:35:40,269 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr16ASSERT_VIOLATIONASSERT (24 of 62 remaining) [2023-08-25 02:35:40,269 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (23 of 62 remaining) [2023-08-25 02:35:40,269 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr17ASSERT_VIOLATIONDATA_RACE (22 of 62 remaining) [2023-08-25 02:35:40,269 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (21 of 62 remaining) [2023-08-25 02:35:40,269 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (20 of 62 remaining) [2023-08-25 02:35:40,269 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr18ASSERT_VIOLATIONDATA_RACE (19 of 62 remaining) [2023-08-25 02:35:40,269 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr25ASSERT_VIOLATIONDATA_RACE (18 of 62 remaining) [2023-08-25 02:35:40,269 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr26ASSERT_VIOLATIONDATA_RACE (17 of 62 remaining) [2023-08-25 02:35:40,270 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr27ASSERT_VIOLATIONDATA_RACE (16 of 62 remaining) [2023-08-25 02:35:40,270 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr19ASSERT_VIOLATIONDATA_RACE (15 of 62 remaining) [2023-08-25 02:35:40,270 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (14 of 62 remaining) [2023-08-25 02:35:40,270 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (13 of 62 remaining) [2023-08-25 02:35:40,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr6ASSERT_VIOLATIONDATA_RACE (12 of 62 remaining) [2023-08-25 02:35:40,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr7ASSERT_VIOLATIONDATA_RACE (11 of 62 remaining) [2023-08-25 02:35:40,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr8ASSERT_VIOLATIONDATA_RACE (10 of 62 remaining) [2023-08-25 02:35:40,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr20ASSERT_VIOLATIONDATA_RACE (9 of 62 remaining) [2023-08-25 02:35:40,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr21ASSERT_VIOLATIONDATA_RACE (8 of 62 remaining) [2023-08-25 02:35:40,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr22ASSERT_VIOLATIONDATA_RACE (7 of 62 remaining) [2023-08-25 02:35:40,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr23ASSERT_VIOLATIONDATA_RACE (6 of 62 remaining) [2023-08-25 02:35:40,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr24ASSERT_VIOLATIONDATA_RACE (5 of 62 remaining) [2023-08-25 02:35:40,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr9ASSERT_VIOLATIONDATA_RACE (4 of 62 remaining) [2023-08-25 02:35:40,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr10ASSERT_VIOLATIONDATA_RACE (3 of 62 remaining) [2023-08-25 02:35:40,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr11ASSERT_VIOLATIONDATA_RACE (2 of 62 remaining) [2023-08-25 02:35:40,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr12ASSERT_VIOLATIONDATA_RACE (1 of 62 remaining) [2023-08-25 02:35:40,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr13ASSERT_VIOLATIONDATA_RACE (0 of 62 remaining) [2023-08-25 02:35:40,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 02:35:40,275 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2023-08-25 02:35:40,277 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 02:35:40,277 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-25 02:35:40,383 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-25 02:35:40,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 528 places, 555 transitions, 1128 flow [2023-08-25 02:35:40,520 INFO L124 PetriNetUnfolderBase]: 38/623 cut-off events. [2023-08-25 02:35:40,521 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-25 02:35:40,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 637 conditions, 623 events. 38/623 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2316 event pairs, 0 based on Foata normal form. 0/517 useless extension candidates. Maximal degree in co-relation 502. Up to 8 conditions per place. [2023-08-25 02:35:40,535 INFO L82 GeneralOperation]: Start removeDead. Operand has 528 places, 555 transitions, 1128 flow [2023-08-25 02:35:40,545 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 528 places, 555 transitions, 1128 flow [2023-08-25 02:35:40,545 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 02:35:40,545 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 528 places, 555 transitions, 1128 flow [2023-08-25 02:35:40,546 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 528 places, 555 transitions, 1128 flow [2023-08-25 02:35:40,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 528 places, 555 transitions, 1128 flow [2023-08-25 02:35:40,714 INFO L124 PetriNetUnfolderBase]: 38/623 cut-off events. [2023-08-25 02:35:40,714 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-25 02:35:40,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 637 conditions, 623 events. 38/623 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2316 event pairs, 0 based on Foata normal form. 0/517 useless extension candidates. Maximal degree in co-relation 502. Up to 8 conditions per place. [2023-08-25 02:35:40,774 INFO L119 LiptonReduction]: Number of co-enabled transitions 133736 [2023-08-25 02:36:55,367 INFO L134 LiptonReduction]: Checked pairs total: 423751 [2023-08-25 02:36:55,367 INFO L136 LiptonReduction]: Total number of compositions: 497 [2023-08-25 02:36:55,369 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 02:36:55,369 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=LoopsAndPotentialCycles, 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;@487e67fe, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 02:36:55,369 INFO L358 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2023-08-25 02:36:55,370 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 02:36:55,370 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 02:36:55,370 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 02:36:55,370 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:36:55,370 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 02:36:55,370 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 87 more)] === [2023-08-25 02:36:55,370 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:36:55,370 INFO L85 PathProgramCache]: Analyzing trace with hash 3032, now seen corresponding path program 1 times [2023-08-25 02:36:55,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:36:55,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045125419] [2023-08-25 02:36:55,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:36:55,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:36:55,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:36:55,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 02:36:55,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:36:55,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045125419] [2023-08-25 02:36:55,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045125419] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:36:55,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:36:55,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 02:36:55,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426702710] [2023-08-25 02:36:55,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:36:55,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 02:36:55,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:36:55,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 02:36:55,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 02:36:55,384 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 468 out of 1052 [2023-08-25 02:36:55,385 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 211 transitions, 440 flow. Second operand has 2 states, 2 states have (on average 468.5) internal successors, (937), 2 states have internal predecessors, (937), 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) [2023-08-25 02:36:55,385 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:36:55,385 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 468 of 1052 [2023-08-25 02:36:55,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:36:57,549 INFO L124 PetriNetUnfolderBase]: 11751/23194 cut-off events. [2023-08-25 02:36:57,549 INFO L125 PetriNetUnfolderBase]: For 274/324 co-relation queries the response was YES. [2023-08-25 02:36:57,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40659 conditions, 23194 events. 11751/23194 cut-off events. For 274/324 co-relation queries the response was YES. Maximal size of possible extension queue 522. Compared 194463 event pairs, 9529 based on Foata normal form. 676/19157 useless extension candidates. Maximal degree in co-relation 33766. Up to 17302 conditions per place. [2023-08-25 02:36:57,638 INFO L140 encePairwiseOnDemand]: 997/1052 looper letters, 82 selfloop transitions, 0 changer transitions 0/153 dead transitions. [2023-08-25 02:36:57,638 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 153 transitions, 488 flow [2023-08-25 02:36:57,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 02:36:57,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 02:36:57,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1073 transitions. [2023-08-25 02:36:57,641 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5099809885931559 [2023-08-25 02:36:57,641 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1073 transitions. [2023-08-25 02:36:57,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1073 transitions. [2023-08-25 02:36:57,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:36:57,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1073 transitions. [2023-08-25 02:36:57,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 536.5) internal successors, (1073), 2 states have internal predecessors, (1073), 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) [2023-08-25 02:36:57,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1052.0) internal successors, (3156), 3 states have internal predecessors, (3156), 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) [2023-08-25 02:36:57,647 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1052.0) internal successors, (3156), 3 states have internal predecessors, (3156), 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) [2023-08-25 02:36:57,647 INFO L175 Difference]: Start difference. First operand has 192 places, 211 transitions, 440 flow. Second operand 2 states and 1073 transitions. [2023-08-25 02:36:57,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 153 transitions, 488 flow [2023-08-25 02:36:57,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 153 transitions, 488 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 02:36:57,653 INFO L231 Difference]: Finished difference. Result has 144 places, 153 transitions, 324 flow [2023-08-25 02:36:57,653 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1052, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=324, PETRI_PLACES=144, PETRI_TRANSITIONS=153} [2023-08-25 02:36:57,655 INFO L281 CegarLoopForPetriNet]: 192 programPoint places, -48 predicate places. [2023-08-25 02:36:57,655 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 153 transitions, 324 flow [2023-08-25 02:36:57,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 468.5) internal successors, (937), 2 states have internal predecessors, (937), 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) [2023-08-25 02:36:57,655 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:36:57,655 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 02:36:57,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 02:36:57,655 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 87 more)] === [2023-08-25 02:36:57,656 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:36:57,656 INFO L85 PathProgramCache]: Analyzing trace with hash -231263159, now seen corresponding path program 1 times [2023-08-25 02:36:57,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:36:57,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055064269] [2023-08-25 02:36:57,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:36:57,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:36:57,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:36:57,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 02:36:57,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:36:57,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055064269] [2023-08-25 02:36:57,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055064269] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:36:57,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:36:57,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 02:36:57,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470053768] [2023-08-25 02:36:57,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:36:57,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 02:36:57,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:36:57,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 02:36:57,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 02:36:57,726 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 457 out of 1052 [2023-08-25 02:36:57,727 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 153 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 458.3333333333333) internal successors, (1375), 3 states have internal predecessors, (1375), 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) [2023-08-25 02:36:57,727 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:36:57,727 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 457 of 1052 [2023-08-25 02:36:57,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:36:59,918 INFO L124 PetriNetUnfolderBase]: 11751/23195 cut-off events. [2023-08-25 02:36:59,918 INFO L125 PetriNetUnfolderBase]: For 274/324 co-relation queries the response was YES. [2023-08-25 02:36:59,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40662 conditions, 23195 events. 11751/23195 cut-off events. For 274/324 co-relation queries the response was YES. Maximal size of possible extension queue 522. Compared 194376 event pairs, 9529 based on Foata normal form. 0/18482 useless extension candidates. Maximal degree in co-relation 40657. Up to 17302 conditions per place. [2023-08-25 02:37:00,028 INFO L140 encePairwiseOnDemand]: 1049/1052 looper letters, 81 selfloop transitions, 2 changer transitions 0/154 dead transitions. [2023-08-25 02:37:00,029 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 154 transitions, 492 flow [2023-08-25 02:37:00,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 02:37:00,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 02:37:00,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1455 transitions. [2023-08-25 02:37:00,036 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4610266159695818 [2023-08-25 02:37:00,036 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1455 transitions. [2023-08-25 02:37:00,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1455 transitions. [2023-08-25 02:37:00,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:37:00,043 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1455 transitions. [2023-08-25 02:37:00,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 485.0) internal successors, (1455), 3 states have internal predecessors, (1455), 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) [2023-08-25 02:37:00,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1052.0) internal successors, (4208), 4 states have internal predecessors, (4208), 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) [2023-08-25 02:37:00,054 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1052.0) internal successors, (4208), 4 states have internal predecessors, (4208), 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) [2023-08-25 02:37:00,054 INFO L175 Difference]: Start difference. First operand has 144 places, 153 transitions, 324 flow. Second operand 3 states and 1455 transitions. [2023-08-25 02:37:00,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 154 transitions, 492 flow [2023-08-25 02:37:00,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 154 transitions, 492 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 02:37:00,059 INFO L231 Difference]: Finished difference. Result has 147 places, 154 transitions, 336 flow [2023-08-25 02:37:00,060 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1052, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=336, PETRI_PLACES=147, PETRI_TRANSITIONS=154} [2023-08-25 02:37:00,063 INFO L281 CegarLoopForPetriNet]: 192 programPoint places, -45 predicate places. [2023-08-25 02:37:00,063 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 154 transitions, 336 flow [2023-08-25 02:37:00,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 458.3333333333333) internal successors, (1375), 3 states have internal predecessors, (1375), 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) [2023-08-25 02:37:00,064 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:37:00,064 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 02:37:00,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 02:37:00,065 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 87 more)] === [2023-08-25 02:37:00,065 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:37:00,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1191068043, now seen corresponding path program 1 times [2023-08-25 02:37:00,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:37:00,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919227732] [2023-08-25 02:37:00,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:37:00,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:37:00,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:37:00,221 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 02:37:00,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:37:00,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919227732] [2023-08-25 02:37:00,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919227732] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:37:00,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:37:00,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 02:37:00,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029019149] [2023-08-25 02:37:00,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:37:00,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 02:37:00,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:37:00,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 02:37:00,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 02:37:00,223 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 448 out of 1052 [2023-08-25 02:37:00,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 154 transitions, 336 flow. Second operand has 3 states, 3 states have (on average 451.3333333333333) internal successors, (1354), 3 states have internal predecessors, (1354), 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) [2023-08-25 02:37:00,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:37:00,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 448 of 1052 [2023-08-25 02:37:00,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:37:04,190 INFO L124 PetriNetUnfolderBase]: 22583/42895 cut-off events. [2023-08-25 02:37:04,190 INFO L125 PetriNetUnfolderBase]: For 183/183 co-relation queries the response was YES. [2023-08-25 02:37:04,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76151 conditions, 42895 events. 22583/42895 cut-off events. For 183/183 co-relation queries the response was YES. Maximal size of possible extension queue 888. Compared 387563 event pairs, 9877 based on Foata normal form. 0/35515 useless extension candidates. Maximal degree in co-relation 76144. Up to 23910 conditions per place. [2023-08-25 02:37:04,372 INFO L140 encePairwiseOnDemand]: 1047/1052 looper letters, 166 selfloop transitions, 4 changer transitions 0/235 dead transitions. [2023-08-25 02:37:04,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 235 transitions, 844 flow [2023-08-25 02:37:04,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 02:37:04,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 02:37:04,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1515 transitions. [2023-08-25 02:37:04,376 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48003802281368824 [2023-08-25 02:37:04,376 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1515 transitions. [2023-08-25 02:37:04,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1515 transitions. [2023-08-25 02:37:04,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:37:04,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1515 transitions. [2023-08-25 02:37:04,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 505.0) internal successors, (1515), 3 states have internal predecessors, (1515), 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) [2023-08-25 02:37:04,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1052.0) internal successors, (4208), 4 states have internal predecessors, (4208), 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) [2023-08-25 02:37:04,384 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1052.0) internal successors, (4208), 4 states have internal predecessors, (4208), 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) [2023-08-25 02:37:04,384 INFO L175 Difference]: Start difference. First operand has 147 places, 154 transitions, 336 flow. Second operand 3 states and 1515 transitions. [2023-08-25 02:37:04,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 235 transitions, 844 flow [2023-08-25 02:37:04,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 235 transitions, 840 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-25 02:37:04,388 INFO L231 Difference]: Finished difference. Result has 149 places, 156 transitions, 354 flow [2023-08-25 02:37:04,388 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1052, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=354, PETRI_PLACES=149, PETRI_TRANSITIONS=156} [2023-08-25 02:37:04,390 INFO L281 CegarLoopForPetriNet]: 192 programPoint places, -43 predicate places. [2023-08-25 02:37:04,390 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 156 transitions, 354 flow [2023-08-25 02:37:04,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 451.3333333333333) internal successors, (1354), 3 states have internal predecessors, (1354), 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) [2023-08-25 02:37:04,390 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:37:04,390 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1] [2023-08-25 02:37:04,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 02:37:04,391 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 87 more)] === [2023-08-25 02:37:04,391 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:37:04,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1129909550, now seen corresponding path program 1 times [2023-08-25 02:37:04,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:37:04,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583844604] [2023-08-25 02:37:04,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:37:04,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:37:04,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:37:04,495 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-08-25 02:37:04,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:37:04,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583844604] [2023-08-25 02:37:04,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583844604] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 02:37:04,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822600839] [2023-08-25 02:37:04,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:37:04,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 02:37:04,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 02:37:04,498 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 02:37:04,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-25 02:37:04,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:37:04,647 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-25 02:37:04,648 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 02:37:04,670 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-08-25 02:37:04,670 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 02:37:04,686 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-08-25 02:37:04,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [822600839] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 02:37:04,687 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 02:37:04,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-08-25 02:37:04,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258936823] [2023-08-25 02:37:04,687 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 02:37:04,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-25 02:37:04,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:37:04,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-25 02:37:04,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2023-08-25 02:37:04,691 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 457 out of 1052 [2023-08-25 02:37:04,694 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 156 transitions, 354 flow. Second operand has 8 states, 8 states have (on average 458.625) internal successors, (3669), 8 states have internal predecessors, (3669), 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) [2023-08-25 02:37:04,694 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:37:04,694 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 457 of 1052 [2023-08-25 02:37:04,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:37:06,950 INFO L124 PetriNetUnfolderBase]: 9755/19570 cut-off events. [2023-08-25 02:37:06,950 INFO L125 PetriNetUnfolderBase]: For 3958/4005 co-relation queries the response was YES. [2023-08-25 02:37:06,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36248 conditions, 19570 events. 9755/19570 cut-off events. For 3958/4005 co-relation queries the response was YES. Maximal size of possible extension queue 435. Compared 162641 event pairs, 7905 based on Foata normal form. 1/17117 useless extension candidates. Maximal degree in co-relation 36240. Up to 14495 conditions per place. [2023-08-25 02:37:07,034 INFO L140 encePairwiseOnDemand]: 1049/1052 looper letters, 83 selfloop transitions, 3 changer transitions 0/157 dead transitions. [2023-08-25 02:37:07,034 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 157 transitions, 530 flow [2023-08-25 02:37:07,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 02:37:07,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 02:37:07,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1913 transitions. [2023-08-25 02:37:07,038 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4546102661596958 [2023-08-25 02:37:07,039 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1913 transitions. [2023-08-25 02:37:07,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1913 transitions. [2023-08-25 02:37:07,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:37:07,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1913 transitions. [2023-08-25 02:37:07,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 478.25) internal successors, (1913), 4 states have internal predecessors, (1913), 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) [2023-08-25 02:37:07,046 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1052.0) internal successors, (5260), 5 states have internal predecessors, (5260), 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) [2023-08-25 02:37:07,047 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1052.0) internal successors, (5260), 5 states have internal predecessors, (5260), 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) [2023-08-25 02:37:07,047 INFO L175 Difference]: Start difference. First operand has 149 places, 156 transitions, 354 flow. Second operand 4 states and 1913 transitions. [2023-08-25 02:37:07,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 157 transitions, 530 flow [2023-08-25 02:37:07,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 157 transitions, 526 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 02:37:07,055 INFO L231 Difference]: Finished difference. Result has 152 places, 157 transitions, 366 flow [2023-08-25 02:37:07,055 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1052, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=366, PETRI_PLACES=152, PETRI_TRANSITIONS=157} [2023-08-25 02:37:07,055 INFO L281 CegarLoopForPetriNet]: 192 programPoint places, -40 predicate places. [2023-08-25 02:37:07,055 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 157 transitions, 366 flow [2023-08-25 02:37:07,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 458.625) internal successors, (3669), 8 states have internal predecessors, (3669), 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) [2023-08-25 02:37:07,056 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:37:07,056 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1] [2023-08-25 02:37:07,062 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-08-25 02:37:07,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-08-25 02:37:07,262 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 87 more)] === [2023-08-25 02:37:07,262 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:37:07,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1754027664, now seen corresponding path program 2 times [2023-08-25 02:37:07,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:37:07,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657038976] [2023-08-25 02:37:07,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:37:07,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:37:07,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 02:37:07,287 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 02:37:07,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 02:37:07,324 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 02:37:07,324 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 02:37:07,324 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (89 of 90 remaining) [2023-08-25 02:37:07,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (88 of 90 remaining) [2023-08-25 02:37:07,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (87 of 90 remaining) [2023-08-25 02:37:07,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (86 of 90 remaining) [2023-08-25 02:37:07,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (85 of 90 remaining) [2023-08-25 02:37:07,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (84 of 90 remaining) [2023-08-25 02:37:07,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr14ASSERT_VIOLATIONDATA_RACE (83 of 90 remaining) [2023-08-25 02:37:07,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (82 of 90 remaining) [2023-08-25 02:37:07,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr15ASSERT_VIOLATIONDATA_RACE (81 of 90 remaining) [2023-08-25 02:37:07,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr16ASSERT_VIOLATIONASSERT (80 of 90 remaining) [2023-08-25 02:37:07,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (79 of 90 remaining) [2023-08-25 02:37:07,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr17ASSERT_VIOLATIONDATA_RACE (78 of 90 remaining) [2023-08-25 02:37:07,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (77 of 90 remaining) [2023-08-25 02:37:07,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (76 of 90 remaining) [2023-08-25 02:37:07,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr18ASSERT_VIOLATIONDATA_RACE (75 of 90 remaining) [2023-08-25 02:37:07,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr25ASSERT_VIOLATIONDATA_RACE (74 of 90 remaining) [2023-08-25 02:37:07,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr26ASSERT_VIOLATIONDATA_RACE (73 of 90 remaining) [2023-08-25 02:37:07,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr27ASSERT_VIOLATIONDATA_RACE (72 of 90 remaining) [2023-08-25 02:37:07,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr19ASSERT_VIOLATIONDATA_RACE (71 of 90 remaining) [2023-08-25 02:37:07,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (70 of 90 remaining) [2023-08-25 02:37:07,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (69 of 90 remaining) [2023-08-25 02:37:07,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr6ASSERT_VIOLATIONDATA_RACE (68 of 90 remaining) [2023-08-25 02:37:07,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr7ASSERT_VIOLATIONDATA_RACE (67 of 90 remaining) [2023-08-25 02:37:07,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr8ASSERT_VIOLATIONDATA_RACE (66 of 90 remaining) [2023-08-25 02:37:07,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr20ASSERT_VIOLATIONDATA_RACE (65 of 90 remaining) [2023-08-25 02:37:07,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr21ASSERT_VIOLATIONDATA_RACE (64 of 90 remaining) [2023-08-25 02:37:07,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr22ASSERT_VIOLATIONDATA_RACE (63 of 90 remaining) [2023-08-25 02:37:07,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr23ASSERT_VIOLATIONDATA_RACE (62 of 90 remaining) [2023-08-25 02:37:07,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr24ASSERT_VIOLATIONDATA_RACE (61 of 90 remaining) [2023-08-25 02:37:07,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr9ASSERT_VIOLATIONDATA_RACE (60 of 90 remaining) [2023-08-25 02:37:07,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr10ASSERT_VIOLATIONDATA_RACE (59 of 90 remaining) [2023-08-25 02:37:07,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr11ASSERT_VIOLATIONDATA_RACE (58 of 90 remaining) [2023-08-25 02:37:07,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr12ASSERT_VIOLATIONDATA_RACE (57 of 90 remaining) [2023-08-25 02:37:07,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr13ASSERT_VIOLATIONDATA_RACE (56 of 90 remaining) [2023-08-25 02:37:07,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr14ASSERT_VIOLATIONDATA_RACE (55 of 90 remaining) [2023-08-25 02:37:07,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (54 of 90 remaining) [2023-08-25 02:37:07,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr15ASSERT_VIOLATIONDATA_RACE (53 of 90 remaining) [2023-08-25 02:37:07,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr16ASSERT_VIOLATIONASSERT (52 of 90 remaining) [2023-08-25 02:37:07,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (51 of 90 remaining) [2023-08-25 02:37:07,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr17ASSERT_VIOLATIONDATA_RACE (50 of 90 remaining) [2023-08-25 02:37:07,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (49 of 90 remaining) [2023-08-25 02:37:07,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (48 of 90 remaining) [2023-08-25 02:37:07,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr18ASSERT_VIOLATIONDATA_RACE (47 of 90 remaining) [2023-08-25 02:37:07,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr25ASSERT_VIOLATIONDATA_RACE (46 of 90 remaining) [2023-08-25 02:37:07,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr26ASSERT_VIOLATIONDATA_RACE (45 of 90 remaining) [2023-08-25 02:37:07,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr27ASSERT_VIOLATIONDATA_RACE (44 of 90 remaining) [2023-08-25 02:37:07,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr19ASSERT_VIOLATIONDATA_RACE (43 of 90 remaining) [2023-08-25 02:37:07,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (42 of 90 remaining) [2023-08-25 02:37:07,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (41 of 90 remaining) [2023-08-25 02:37:07,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr6ASSERT_VIOLATIONDATA_RACE (40 of 90 remaining) [2023-08-25 02:37:07,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr7ASSERT_VIOLATIONDATA_RACE (39 of 90 remaining) [2023-08-25 02:37:07,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr8ASSERT_VIOLATIONDATA_RACE (38 of 90 remaining) [2023-08-25 02:37:07,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr20ASSERT_VIOLATIONDATA_RACE (37 of 90 remaining) [2023-08-25 02:37:07,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr21ASSERT_VIOLATIONDATA_RACE (36 of 90 remaining) [2023-08-25 02:37:07,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr22ASSERT_VIOLATIONDATA_RACE (35 of 90 remaining) [2023-08-25 02:37:07,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr23ASSERT_VIOLATIONDATA_RACE (34 of 90 remaining) [2023-08-25 02:37:07,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr24ASSERT_VIOLATIONDATA_RACE (33 of 90 remaining) [2023-08-25 02:37:07,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr9ASSERT_VIOLATIONDATA_RACE (32 of 90 remaining) [2023-08-25 02:37:07,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr10ASSERT_VIOLATIONDATA_RACE (31 of 90 remaining) [2023-08-25 02:37:07,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr11ASSERT_VIOLATIONDATA_RACE (30 of 90 remaining) [2023-08-25 02:37:07,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr12ASSERT_VIOLATIONDATA_RACE (29 of 90 remaining) [2023-08-25 02:37:07,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr13ASSERT_VIOLATIONDATA_RACE (28 of 90 remaining) [2023-08-25 02:37:07,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr14ASSERT_VIOLATIONDATA_RACE (27 of 90 remaining) [2023-08-25 02:37:07,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (26 of 90 remaining) [2023-08-25 02:37:07,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr15ASSERT_VIOLATIONDATA_RACE (25 of 90 remaining) [2023-08-25 02:37:07,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr16ASSERT_VIOLATIONASSERT (24 of 90 remaining) [2023-08-25 02:37:07,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (23 of 90 remaining) [2023-08-25 02:37:07,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr17ASSERT_VIOLATIONDATA_RACE (22 of 90 remaining) [2023-08-25 02:37:07,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (21 of 90 remaining) [2023-08-25 02:37:07,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (20 of 90 remaining) [2023-08-25 02:37:07,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr18ASSERT_VIOLATIONDATA_RACE (19 of 90 remaining) [2023-08-25 02:37:07,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr25ASSERT_VIOLATIONDATA_RACE (18 of 90 remaining) [2023-08-25 02:37:07,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr26ASSERT_VIOLATIONDATA_RACE (17 of 90 remaining) [2023-08-25 02:37:07,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr27ASSERT_VIOLATIONDATA_RACE (16 of 90 remaining) [2023-08-25 02:37:07,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr19ASSERT_VIOLATIONDATA_RACE (15 of 90 remaining) [2023-08-25 02:37:07,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (14 of 90 remaining) [2023-08-25 02:37:07,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (13 of 90 remaining) [2023-08-25 02:37:07,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr6ASSERT_VIOLATIONDATA_RACE (12 of 90 remaining) [2023-08-25 02:37:07,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr7ASSERT_VIOLATIONDATA_RACE (11 of 90 remaining) [2023-08-25 02:37:07,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr8ASSERT_VIOLATIONDATA_RACE (10 of 90 remaining) [2023-08-25 02:37:07,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr20ASSERT_VIOLATIONDATA_RACE (9 of 90 remaining) [2023-08-25 02:37:07,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr21ASSERT_VIOLATIONDATA_RACE (8 of 90 remaining) [2023-08-25 02:37:07,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr22ASSERT_VIOLATIONDATA_RACE (7 of 90 remaining) [2023-08-25 02:37:07,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr23ASSERT_VIOLATIONDATA_RACE (6 of 90 remaining) [2023-08-25 02:37:07,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr24ASSERT_VIOLATIONDATA_RACE (5 of 90 remaining) [2023-08-25 02:37:07,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr9ASSERT_VIOLATIONDATA_RACE (4 of 90 remaining) [2023-08-25 02:37:07,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr10ASSERT_VIOLATIONDATA_RACE (3 of 90 remaining) [2023-08-25 02:37:07,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr11ASSERT_VIOLATIONDATA_RACE (2 of 90 remaining) [2023-08-25 02:37:07,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr12ASSERT_VIOLATIONDATA_RACE (1 of 90 remaining) [2023-08-25 02:37:07,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr13ASSERT_VIOLATIONDATA_RACE (0 of 90 remaining) [2023-08-25 02:37:07,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 02:37:07,334 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2023-08-25 02:37:07,335 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 02:37:07,335 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-08-25 02:37:07,504 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-25 02:37:07,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 747 places, 786 transitions, 1602 flow [2023-08-25 02:37:07,689 INFO L124 PetriNetUnfolderBase]: 61/941 cut-off events. [2023-08-25 02:37:07,689 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-08-25 02:37:07,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 969 conditions, 941 events. 61/941 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 4574 event pairs, 1 based on Foata normal form. 0/780 useless extension candidates. Maximal degree in co-relation 771. Up to 16 conditions per place. [2023-08-25 02:37:07,713 INFO L82 GeneralOperation]: Start removeDead. Operand has 747 places, 786 transitions, 1602 flow [2023-08-25 02:37:07,724 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 747 places, 786 transitions, 1602 flow [2023-08-25 02:37:07,724 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 02:37:07,724 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 747 places, 786 transitions, 1602 flow [2023-08-25 02:37:07,724 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 747 places, 786 transitions, 1602 flow [2023-08-25 02:37:07,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 747 places, 786 transitions, 1602 flow [2023-08-25 02:37:07,946 INFO L124 PetriNetUnfolderBase]: 61/941 cut-off events. [2023-08-25 02:37:07,946 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-08-25 02:37:07,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 969 conditions, 941 events. 61/941 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 4574 event pairs, 1 based on Foata normal form. 0/780 useless extension candidates. Maximal degree in co-relation 771. Up to 16 conditions per place. [2023-08-25 02:37:08,061 INFO L119 LiptonReduction]: Number of co-enabled transitions 359988 [2023-08-25 02:39:20,449 INFO L134 LiptonReduction]: Checked pairs total: 1163803 [2023-08-25 02:39:20,450 INFO L136 LiptonReduction]: Total number of compositions: 703 [2023-08-25 02:39:20,452 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 02:39:20,454 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=LoopsAndPotentialCycles, 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;@487e67fe, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 02:39:20,454 INFO L358 AbstractCegarLoop]: Starting to check reachability of 118 error locations. [2023-08-25 02:39:20,454 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 02:39:20,454 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 02:39:20,454 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 02:39:20,454 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:39:20,454 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 02:39:20,455 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 115 more)] === [2023-08-25 02:39:20,455 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:39:20,456 INFO L85 PathProgramCache]: Analyzing trace with hash 4751, now seen corresponding path program 1 times [2023-08-25 02:39:20,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:39:20,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82604780] [2023-08-25 02:39:20,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:39:20,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:39:20,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:39:20,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 02:39:20,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:39:20,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82604780] [2023-08-25 02:39:20,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82604780] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:39:20,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:39:20,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 02:39:20,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330577284] [2023-08-25 02:39:20,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:39:20,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 02:39:20,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:39:20,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 02:39:20,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 02:39:20,489 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 661 out of 1489 [2023-08-25 02:39:20,490 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 308 transitions, 646 flow. Second operand has 2 states, 2 states have (on average 661.5) internal successors, (1323), 2 states have internal predecessors, (1323), 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) [2023-08-25 02:39:20,490 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:39:20,490 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 661 of 1489 [2023-08-25 02:39:20,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:40:55,093 INFO L124 PetriNetUnfolderBase]: 609077/977936 cut-off events. [2023-08-25 02:40:55,094 INFO L125 PetriNetUnfolderBase]: For 14799/15352 co-relation queries the response was YES. [2023-08-25 02:40:57,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1781483 conditions, 977936 events. 609077/977936 cut-off events. For 14799/15352 co-relation queries the response was YES. Maximal size of possible extension queue 16375. Compared 10401364 event pairs, 500891 based on Foata normal form. 45399/809016 useless extension candidates. Maximal degree in co-relation 705932. Up to 796600 conditions per place. [2023-08-25 02:41:01,849 INFO L140 encePairwiseOnDemand]: 1408/1489 looper letters, 122 selfloop transitions, 0 changer transitions 0/224 dead transitions. [2023-08-25 02:41:01,849 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 224 transitions, 722 flow [2023-08-25 02:41:01,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 02:41:01,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 02:41:01,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1525 transitions. [2023-08-25 02:41:01,863 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5120886501007388 [2023-08-25 02:41:01,863 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1525 transitions. [2023-08-25 02:41:01,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1525 transitions. [2023-08-25 02:41:01,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:41:01,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1525 transitions. [2023-08-25 02:41:01,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 762.5) internal successors, (1525), 2 states have internal predecessors, (1525), 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) [2023-08-25 02:41:01,894 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1489.0) internal successors, (4467), 3 states have internal predecessors, (4467), 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) [2023-08-25 02:41:01,895 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1489.0) internal successors, (4467), 3 states have internal predecessors, (4467), 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) [2023-08-25 02:41:01,895 INFO L175 Difference]: Start difference. First operand has 279 places, 308 transitions, 646 flow. Second operand 2 states and 1525 transitions. [2023-08-25 02:41:01,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 224 transitions, 722 flow [2023-08-25 02:41:01,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 224 transitions, 722 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 02:41:01,908 INFO L231 Difference]: Finished difference. Result has 210 places, 224 transitions, 478 flow [2023-08-25 02:41:01,909 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1489, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=478, PETRI_PLACES=210, PETRI_TRANSITIONS=224} [2023-08-25 02:41:01,909 INFO L281 CegarLoopForPetriNet]: 279 programPoint places, -69 predicate places. [2023-08-25 02:41:01,909 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 224 transitions, 478 flow [2023-08-25 02:41:01,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 661.5) internal successors, (1323), 2 states have internal predecessors, (1323), 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) [2023-08-25 02:41:01,910 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:41:01,910 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 02:41:01,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 02:41:01,910 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 115 more)] === [2023-08-25 02:41:01,910 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:41:01,910 INFO L85 PathProgramCache]: Analyzing trace with hash 479147297, now seen corresponding path program 1 times [2023-08-25 02:41:01,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:41:01,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015558837] [2023-08-25 02:41:01,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:41:01,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:41:01,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:41:02,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 02:41:02,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:41:02,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015558837] [2023-08-25 02:41:02,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015558837] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:41:02,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:41:02,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 02:41:02,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352264003] [2023-08-25 02:41:02,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:41:02,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 02:41:02,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:41:02,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 02:41:02,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 02:41:02,016 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 650 out of 1489 [2023-08-25 02:41:02,016 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 224 transitions, 478 flow. Second operand has 3 states, 3 states have (on average 651.3333333333334) internal successors, (1954), 3 states have internal predecessors, (1954), 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) [2023-08-25 02:41:02,016 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:41:02,017 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 650 of 1489 [2023-08-25 02:41:02,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand