/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/weaver/chl-chromosome-opt-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 04:49:10,638 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 04:49:10,695 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 04:49:10,699 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 04:49:10,699 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 04:49:10,729 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 04:49:10,729 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 04:49:10,730 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 04:49:10,730 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 04:49:10,733 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 04:49:10,733 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 04:49:10,733 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 04:49:10,733 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 04:49:10,734 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 04:49:10,734 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 04:49:10,735 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 04:49:10,735 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 04:49:10,735 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 04:49:10,735 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 04:49:10,735 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 04:49:10,735 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 04:49:10,736 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 04:49:10,736 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 04:49:10,737 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 04:49:10,737 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 04:49:10,737 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 04:49:10,737 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 04:49:10,737 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 04:49:10,737 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 04:49:10,738 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 04:49:10,738 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 04:49:10,738 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 04:49:10,738 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 04:49:10,739 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 04:49:10,739 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 04:49:10,739 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 04:49:11,028 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 04:49:11,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 04:49:11,048 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 04:49:11,049 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 04:49:11,049 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 04:49:11,050 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c [2023-08-25 04:49:12,047 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 04:49:12,210 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 04:49:12,211 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c [2023-08-25 04:49:12,216 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2f644766/0c246023557642078b27defdb1c65179/FLAG9ad812848 [2023-08-25 04:49:12,224 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2f644766/0c246023557642078b27defdb1c65179 [2023-08-25 04:49:12,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 04:49:12,226 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 04:49:12,227 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 04:49:12,227 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 04:49:12,229 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 04:49:12,230 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 04:49:12" (1/1) ... [2023-08-25 04:49:12,230 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@238411f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:49:12, skipping insertion in model container [2023-08-25 04:49:12,230 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 04:49:12" (1/1) ... [2023-08-25 04:49:12,244 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 04:49:12,347 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 04:49:12,354 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 04:49:12,377 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 04:49:12,386 INFO L206 MainTranslator]: Completed translation [2023-08-25 04:49:12,386 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:49:12 WrapperNode [2023-08-25 04:49:12,386 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 04:49:12,387 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 04:49:12,387 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 04:49:12,387 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 04:49:12,391 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:49:12" (1/1) ... [2023-08-25 04:49:12,399 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:49:12" (1/1) ... [2023-08-25 04:49:12,424 INFO L138 Inliner]: procedures = 24, calls = 36, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 298 [2023-08-25 04:49:12,424 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 04:49:12,424 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 04:49:12,425 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 04:49:12,425 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 04:49:12,430 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:49:12" (1/1) ... [2023-08-25 04:49:12,430 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:49:12" (1/1) ... [2023-08-25 04:49:12,434 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:49:12" (1/1) ... [2023-08-25 04:49:12,434 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:49:12" (1/1) ... [2023-08-25 04:49:12,443 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:49:12" (1/1) ... [2023-08-25 04:49:12,445 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:49:12" (1/1) ... [2023-08-25 04:49:12,447 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:49:12" (1/1) ... [2023-08-25 04:49:12,448 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:49:12" (1/1) ... [2023-08-25 04:49:12,450 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 04:49:12,451 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 04:49:12,451 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 04:49:12,451 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 04:49:12,451 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:49:12" (1/1) ... [2023-08-25 04:49:12,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 04:49:12,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 04:49:12,473 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 04:49:12,493 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 04:49:12,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 04:49:12,504 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 04:49:12,504 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 04:49:12,504 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 04:49:12,505 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 04:49:12,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 04:49:12,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 04:49:12,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 04:49:12,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-25 04:49:12,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 04:49:12,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 04:49:12,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 04:49:12,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 04:49:12,507 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 04:49:12,600 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 04:49:12,601 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 04:49:12,986 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 04:49:12,994 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 04:49:12,994 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-25 04:49:12,996 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 04:49:12 BoogieIcfgContainer [2023-08-25 04:49:12,996 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 04:49:12,997 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 04:49:12,997 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 04:49:12,999 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 04:49:12,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 04:49:12" (1/3) ... [2023-08-25 04:49:13,000 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76c4f8f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 04:49:13, skipping insertion in model container [2023-08-25 04:49:13,000 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:49:12" (2/3) ... [2023-08-25 04:49:13,000 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76c4f8f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 04:49:13, skipping insertion in model container [2023-08-25 04:49:13,000 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 04:49:12" (3/3) ... [2023-08-25 04:49:13,001 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-opt-symm.wvr.c [2023-08-25 04:49:13,011 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 04:49:13,012 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2023-08-25 04:49:13,012 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 04:49:13,147 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-25 04:49:13,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 338 places, 350 transitions, 716 flow [2023-08-25 04:49:13,303 INFO L124 PetriNetUnfolderBase]: 19/348 cut-off events. [2023-08-25 04:49:13,304 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 04:49:13,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 357 conditions, 348 events. 19/348 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 663 event pairs, 0 based on Foata normal form. 0/296 useless extension candidates. Maximal degree in co-relation 225. Up to 3 conditions per place. [2023-08-25 04:49:13,312 INFO L82 GeneralOperation]: Start removeDead. Operand has 338 places, 350 transitions, 716 flow [2023-08-25 04:49:13,320 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 327 places, 339 transitions, 690 flow [2023-08-25 04:49:13,324 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 04:49:13,336 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 327 places, 339 transitions, 690 flow [2023-08-25 04:49:13,339 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 327 places, 339 transitions, 690 flow [2023-08-25 04:49:13,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 327 places, 339 transitions, 690 flow [2023-08-25 04:49:13,390 INFO L124 PetriNetUnfolderBase]: 19/339 cut-off events. [2023-08-25 04:49:13,390 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 04:49:13,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 348 conditions, 339 events. 19/339 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 660 event pairs, 0 based on Foata normal form. 0/288 useless extension candidates. Maximal degree in co-relation 225. Up to 3 conditions per place. [2023-08-25 04:49:13,400 INFO L119 LiptonReduction]: Number of co-enabled transitions 18468 [2023-08-25 04:49:18,769 INFO L134 LiptonReduction]: Checked pairs total: 120141 [2023-08-25 04:49:18,769 INFO L136 LiptonReduction]: Total number of compositions: 279 [2023-08-25 04:49:18,785 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 04:49:18,790 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;@3034b10, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 04:49:18,790 INFO L358 AbstractCegarLoop]: Starting to check reachability of 57 error locations. [2023-08-25 04:49:18,792 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 04:49:18,792 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events. [2023-08-25 04:49:18,792 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 04:49:18,792 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:49:18,792 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-25 04:49:18,793 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:49:18,796 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:49:18,797 INFO L85 PathProgramCache]: Analyzing trace with hash 40121, now seen corresponding path program 1 times [2023-08-25 04:49:18,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:49:18,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53351095] [2023-08-25 04:49:18,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:49:18,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:49:18,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:49:18,939 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 04:49:18,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:49:18,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53351095] [2023-08-25 04:49:18,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53351095] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:49:18,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:49:18,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 04:49:18,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001980171] [2023-08-25 04:49:18,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:49:18,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 04:49:18,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:49:18,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 04:49:18,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 04:49:18,972 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 334 out of 629 [2023-08-25 04:49:18,976 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 132 transitions, 276 flow. Second operand has 2 states, 2 states have (on average 335.0) internal successors, (670), 2 states have internal predecessors, (670), 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 04:49:18,976 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:49:18,976 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 334 of 629 [2023-08-25 04:49:18,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:49:19,145 INFO L124 PetriNetUnfolderBase]: 350/1279 cut-off events. [2023-08-25 04:49:19,145 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2023-08-25 04:49:19,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1856 conditions, 1279 events. 350/1279 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 8786 event pairs, 228 based on Foata normal form. 40/1069 useless extension candidates. Maximal degree in co-relation 1639. Up to 546 conditions per place. [2023-08-25 04:49:19,152 INFO L140 encePairwiseOnDemand]: 616/629 looper letters, 35 selfloop transitions, 0 changer transitions 0/119 dead transitions. [2023-08-25 04:49:19,152 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 119 transitions, 320 flow [2023-08-25 04:49:19,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 04:49:19,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 04:49:19,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 716 transitions. [2023-08-25 04:49:19,176 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5691573926868044 [2023-08-25 04:49:19,177 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 716 transitions. [2023-08-25 04:49:19,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 716 transitions. [2023-08-25 04:49:19,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:49:19,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 716 transitions. [2023-08-25 04:49:19,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 358.0) internal successors, (716), 2 states have internal predecessors, (716), 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 04:49:19,189 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 629.0) internal successors, (1887), 3 states have internal predecessors, (1887), 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 04:49:19,190 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 629.0) internal successors, (1887), 3 states have internal predecessors, (1887), 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 04:49:19,191 INFO L175 Difference]: Start difference. First operand has 128 places, 132 transitions, 276 flow. Second operand 2 states and 716 transitions. [2023-08-25 04:49:19,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 119 transitions, 320 flow [2023-08-25 04:49:19,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 119 transitions, 312 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 04:49:19,197 INFO L231 Difference]: Finished difference. Result has 115 places, 119 transitions, 242 flow [2023-08-25 04:49:19,198 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=242, PETRI_PLACES=115, PETRI_TRANSITIONS=119} [2023-08-25 04:49:19,202 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, -13 predicate places. [2023-08-25 04:49:19,202 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 119 transitions, 242 flow [2023-08-25 04:49:19,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 335.0) internal successors, (670), 2 states have internal predecessors, (670), 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 04:49:19,203 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:49:19,203 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 04:49:19,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 04:49:19,204 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:49:19,207 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:49:19,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1530544026, now seen corresponding path program 1 times [2023-08-25 04:49:19,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:49:19,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469816314] [2023-08-25 04:49:19,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:49:19,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:49:19,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:49:19,276 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 04:49:19,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:49:19,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469816314] [2023-08-25 04:49:19,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469816314] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:49:19,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:49:19,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:49:19,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191473565] [2023-08-25 04:49:19,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:49:19,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:49:19,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:49:19,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:49:19,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:49:19,281 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 325 out of 629 [2023-08-25 04:49:19,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 119 transitions, 242 flow. Second operand has 3 states, 3 states have (on average 327.0) internal successors, (981), 3 states have internal predecessors, (981), 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 04:49:19,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:49:19,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 325 of 629 [2023-08-25 04:49:19,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:49:19,404 INFO L124 PetriNetUnfolderBase]: 380/1404 cut-off events. [2023-08-25 04:49:19,404 INFO L125 PetriNetUnfolderBase]: For 12/28 co-relation queries the response was YES. [2023-08-25 04:49:19,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2008 conditions, 1404 events. 380/1404 cut-off events. For 12/28 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 9822 event pairs, 110 based on Foata normal form. 2/1147 useless extension candidates. Maximal degree in co-relation 2005. Up to 578 conditions per place. [2023-08-25 04:49:19,411 INFO L140 encePairwiseOnDemand]: 625/629 looper letters, 41 selfloop transitions, 2 changer transitions 0/124 dead transitions. [2023-08-25 04:49:19,411 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 124 transitions, 339 flow [2023-08-25 04:49:19,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:49:19,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:49:19,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1020 transitions. [2023-08-25 04:49:19,413 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5405405405405406 [2023-08-25 04:49:19,413 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1020 transitions. [2023-08-25 04:49:19,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1020 transitions. [2023-08-25 04:49:19,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:49:19,414 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1020 transitions. [2023-08-25 04:49:19,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 340.0) internal successors, (1020), 3 states have internal predecessors, (1020), 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 04:49:19,419 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 629.0) internal successors, (2516), 4 states have internal predecessors, (2516), 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 04:49:19,419 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 629.0) internal successors, (2516), 4 states have internal predecessors, (2516), 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 04:49:19,419 INFO L175 Difference]: Start difference. First operand has 115 places, 119 transitions, 242 flow. Second operand 3 states and 1020 transitions. [2023-08-25 04:49:19,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 124 transitions, 339 flow [2023-08-25 04:49:19,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 124 transitions, 339 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:49:19,423 INFO L231 Difference]: Finished difference. Result has 116 places, 119 transitions, 252 flow [2023-08-25 04:49:19,423 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=252, PETRI_PLACES=116, PETRI_TRANSITIONS=119} [2023-08-25 04:49:19,423 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, -12 predicate places. [2023-08-25 04:49:19,423 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 119 transitions, 252 flow [2023-08-25 04:49:19,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 327.0) internal successors, (981), 3 states have internal predecessors, (981), 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 04:49:19,424 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:49:19,424 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:49:19,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 04:49:19,425 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:49:19,426 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:49:19,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1972581151, now seen corresponding path program 1 times [2023-08-25 04:49:19,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:49:19,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346917482] [2023-08-25 04:49:19,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:49:19,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:49:19,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:49:19,479 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 04:49:19,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:49:19,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346917482] [2023-08-25 04:49:19,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346917482] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:49:19,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:49:19,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:49:19,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825144975] [2023-08-25 04:49:19,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:49:19,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:49:19,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:49:19,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:49:19,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:49:19,482 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 325 out of 629 [2023-08-25 04:49:19,483 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 119 transitions, 252 flow. Second operand has 3 states, 3 states have (on average 327.6666666666667) internal successors, (983), 3 states have internal predecessors, (983), 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 04:49:19,483 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:49:19,483 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 325 of 629 [2023-08-25 04:49:19,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:49:19,628 INFO L124 PetriNetUnfolderBase]: 438/1831 cut-off events. [2023-08-25 04:49:19,629 INFO L125 PetriNetUnfolderBase]: For 31/76 co-relation queries the response was YES. [2023-08-25 04:49:19,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2577 conditions, 1831 events. 438/1831 cut-off events. For 31/76 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 13202 event pairs, 132 based on Foata normal form. 1/1462 useless extension candidates. Maximal degree in co-relation 2573. Up to 662 conditions per place. [2023-08-25 04:49:19,635 INFO L140 encePairwiseOnDemand]: 625/629 looper letters, 43 selfloop transitions, 2 changer transitions 0/124 dead transitions. [2023-08-25 04:49:19,635 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 124 transitions, 356 flow [2023-08-25 04:49:19,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:49:19,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:49:19,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1021 transitions. [2023-08-25 04:49:19,637 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5410704822469529 [2023-08-25 04:49:19,638 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1021 transitions. [2023-08-25 04:49:19,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1021 transitions. [2023-08-25 04:49:19,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:49:19,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1021 transitions. [2023-08-25 04:49:19,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 340.3333333333333) internal successors, (1021), 3 states have internal predecessors, (1021), 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 04:49:19,642 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 629.0) internal successors, (2516), 4 states have internal predecessors, (2516), 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 04:49:19,643 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 629.0) internal successors, (2516), 4 states have internal predecessors, (2516), 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 04:49:19,643 INFO L175 Difference]: Start difference. First operand has 116 places, 119 transitions, 252 flow. Second operand 3 states and 1021 transitions. [2023-08-25 04:49:19,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 124 transitions, 356 flow [2023-08-25 04:49:19,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 124 transitions, 356 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:49:19,645 INFO L231 Difference]: Finished difference. Result has 117 places, 119 transitions, 262 flow [2023-08-25 04:49:19,645 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=262, PETRI_PLACES=117, PETRI_TRANSITIONS=119} [2023-08-25 04:49:19,645 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, -11 predicate places. [2023-08-25 04:49:19,646 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 119 transitions, 262 flow [2023-08-25 04:49:19,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 327.6666666666667) internal successors, (983), 3 states have internal predecessors, (983), 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 04:49:19,646 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:49:19,646 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:49:19,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 04:49:19,646 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:49:19,647 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:49:19,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1753925652, now seen corresponding path program 1 times [2023-08-25 04:49:19,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:49:19,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179092781] [2023-08-25 04:49:19,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:49:19,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:49:19,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:49:19,677 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 04:49:19,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:49:19,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179092781] [2023-08-25 04:49:19,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179092781] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:49:19,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:49:19,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:49:19,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882835239] [2023-08-25 04:49:19,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:49:19,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:49:19,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:49:19,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:49:19,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:49:19,679 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 629 [2023-08-25 04:49:19,680 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 119 transitions, 262 flow. Second operand has 3 states, 3 states have (on average 321.6666666666667) internal successors, (965), 3 states have internal predecessors, (965), 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 04:49:19,680 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:49:19,680 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 629 [2023-08-25 04:49:19,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:49:19,846 INFO L124 PetriNetUnfolderBase]: 647/2346 cut-off events. [2023-08-25 04:49:19,847 INFO L125 PetriNetUnfolderBase]: For 85/85 co-relation queries the response was YES. [2023-08-25 04:49:19,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3506 conditions, 2346 events. 647/2346 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 17500 event pairs, 123 based on Foata normal form. 0/2002 useless extension candidates. Maximal degree in co-relation 3501. Up to 868 conditions per place. [2023-08-25 04:49:19,857 INFO L140 encePairwiseOnDemand]: 623/629 looper letters, 57 selfloop transitions, 2 changer transitions 0/132 dead transitions. [2023-08-25 04:49:19,857 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 132 transitions, 413 flow [2023-08-25 04:49:19,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:49:19,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:49:19,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1018 transitions. [2023-08-25 04:49:19,859 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.539480657127716 [2023-08-25 04:49:19,859 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1018 transitions. [2023-08-25 04:49:19,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1018 transitions. [2023-08-25 04:49:19,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:49:19,860 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1018 transitions. [2023-08-25 04:49:19,861 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 339.3333333333333) internal successors, (1018), 3 states have internal predecessors, (1018), 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 04:49:19,863 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 629.0) internal successors, (2516), 4 states have internal predecessors, (2516), 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 04:49:19,864 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 629.0) internal successors, (2516), 4 states have internal predecessors, (2516), 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 04:49:19,864 INFO L175 Difference]: Start difference. First operand has 117 places, 119 transitions, 262 flow. Second operand 3 states and 1018 transitions. [2023-08-25 04:49:19,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 132 transitions, 413 flow [2023-08-25 04:49:19,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 132 transitions, 413 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:49:19,867 INFO L231 Difference]: Finished difference. Result has 116 places, 117 transitions, 268 flow [2023-08-25 04:49:19,867 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=268, PETRI_PLACES=116, PETRI_TRANSITIONS=117} [2023-08-25 04:49:19,867 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, -12 predicate places. [2023-08-25 04:49:19,867 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 117 transitions, 268 flow [2023-08-25 04:49:19,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 321.6666666666667) internal successors, (965), 3 states have internal predecessors, (965), 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 04:49:19,868 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:49:19,868 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:49:19,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 04:49:19,868 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:49:19,869 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:49:19,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1436460334, now seen corresponding path program 1 times [2023-08-25 04:49:19,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:49:19,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26196931] [2023-08-25 04:49:19,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:49:19,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:49:19,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:49:19,918 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 04:49:19,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:49:19,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26196931] [2023-08-25 04:49:19,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26196931] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:49:19,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:49:19,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:49:19,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028953609] [2023-08-25 04:49:19,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:49:19,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:49:19,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:49:19,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:49:19,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:49:19,920 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 629 [2023-08-25 04:49:19,921 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 117 transitions, 268 flow. Second operand has 3 states, 3 states have (on average 300.3333333333333) internal successors, (901), 3 states have internal predecessors, (901), 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 04:49:19,921 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:49:19,921 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 629 [2023-08-25 04:49:19,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:49:20,076 INFO L124 PetriNetUnfolderBase]: 467/1573 cut-off events. [2023-08-25 04:49:20,078 INFO L125 PetriNetUnfolderBase]: For 132/156 co-relation queries the response was YES. [2023-08-25 04:49:20,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2539 conditions, 1573 events. 467/1573 cut-off events. For 132/156 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 11062 event pairs, 240 based on Foata normal form. 0/1297 useless extension candidates. Maximal degree in co-relation 2533. Up to 728 conditions per place. [2023-08-25 04:49:20,085 INFO L140 encePairwiseOnDemand]: 624/629 looper letters, 36 selfloop transitions, 4 changer transitions 0/119 dead transitions. [2023-08-25 04:49:20,085 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 119 transitions, 352 flow [2023-08-25 04:49:20,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:49:20,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:49:20,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 933 transitions. [2023-08-25 04:49:20,088 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4944356120826709 [2023-08-25 04:49:20,088 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 933 transitions. [2023-08-25 04:49:20,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 933 transitions. [2023-08-25 04:49:20,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:49:20,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 933 transitions. [2023-08-25 04:49:20,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 311.0) internal successors, (933), 3 states have internal predecessors, (933), 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 04:49:20,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 629.0) internal successors, (2516), 4 states have internal predecessors, (2516), 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 04:49:20,093 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 629.0) internal successors, (2516), 4 states have internal predecessors, (2516), 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 04:49:20,093 INFO L175 Difference]: Start difference. First operand has 116 places, 117 transitions, 268 flow. Second operand 3 states and 933 transitions. [2023-08-25 04:49:20,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 119 transitions, 352 flow [2023-08-25 04:49:20,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 119 transitions, 352 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:49:20,096 INFO L231 Difference]: Finished difference. Result has 119 places, 119 transitions, 290 flow [2023-08-25 04:49:20,096 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=290, PETRI_PLACES=119, PETRI_TRANSITIONS=119} [2023-08-25 04:49:20,098 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, -9 predicate places. [2023-08-25 04:49:20,098 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 119 transitions, 290 flow [2023-08-25 04:49:20,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 300.3333333333333) internal successors, (901), 3 states have internal predecessors, (901), 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 04:49:20,099 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:49:20,099 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:49:20,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 04:49:20,099 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:49:20,099 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:49:20,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1241212894, now seen corresponding path program 1 times [2023-08-25 04:49:20,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:49:20,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807663519] [2023-08-25 04:49:20,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:49:20,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:49:20,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:49:20,181 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 04:49:20,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:49:20,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807663519] [2023-08-25 04:49:20,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807663519] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 04:49:20,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651459800] [2023-08-25 04:49:20,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:49:20,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 04:49:20,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 04:49:20,184 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 04:49:20,185 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 04:49:20,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:49:20,277 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-25 04:49:20,280 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 04:49:20,327 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 04:49:20,327 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 04:49:20,339 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 04:49:20,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651459800] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 04:49:20,340 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 04:49:20,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-08-25 04:49:20,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778118964] [2023-08-25 04:49:20,340 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 04:49:20,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-25 04:49:20,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:49:20,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-25 04:49:20,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2023-08-25 04:49:20,342 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 629 [2023-08-25 04:49:20,344 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 119 transitions, 290 flow. Second operand has 8 states, 8 states have (on average 299.875) internal successors, (2399), 8 states have internal predecessors, (2399), 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 04:49:20,344 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:49:20,344 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 629 [2023-08-25 04:49:20,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:49:20,520 INFO L124 PetriNetUnfolderBase]: 467/1579 cut-off events. [2023-08-25 04:49:20,521 INFO L125 PetriNetUnfolderBase]: For 132/156 co-relation queries the response was YES. [2023-08-25 04:49:20,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2568 conditions, 1579 events. 467/1579 cut-off events. For 132/156 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 11049 event pairs, 240 based on Foata normal form. 3/1307 useless extension candidates. Maximal degree in co-relation 2560. Up to 728 conditions per place. [2023-08-25 04:49:20,528 INFO L140 encePairwiseOnDemand]: 624/629 looper letters, 36 selfloop transitions, 10 changer transitions 0/125 dead transitions. [2023-08-25 04:49:20,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 125 transitions, 406 flow [2023-08-25 04:49:20,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 04:49:20,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 04:49:20,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1837 transitions. [2023-08-25 04:49:20,531 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48675145733969266 [2023-08-25 04:49:20,531 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1837 transitions. [2023-08-25 04:49:20,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1837 transitions. [2023-08-25 04:49:20,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:49:20,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1837 transitions. [2023-08-25 04:49:20,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 306.1666666666667) internal successors, (1837), 6 states have internal predecessors, (1837), 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 04:49:20,539 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 629.0) internal successors, (4403), 7 states have internal predecessors, (4403), 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 04:49:20,539 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 629.0) internal successors, (4403), 7 states have internal predecessors, (4403), 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 04:49:20,539 INFO L175 Difference]: Start difference. First operand has 119 places, 119 transitions, 290 flow. Second operand 6 states and 1837 transitions. [2023-08-25 04:49:20,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 125 transitions, 406 flow [2023-08-25 04:49:20,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 125 transitions, 402 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 04:49:20,542 INFO L231 Difference]: Finished difference. Result has 126 places, 125 transitions, 352 flow [2023-08-25 04:49:20,542 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=352, PETRI_PLACES=126, PETRI_TRANSITIONS=125} [2023-08-25 04:49:20,543 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, -2 predicate places. [2023-08-25 04:49:20,543 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 125 transitions, 352 flow [2023-08-25 04:49:20,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 299.875) internal successors, (2399), 8 states have internal predecessors, (2399), 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 04:49:20,544 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:49:20,544 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:49:20,552 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-25 04:49:20,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-08-25 04:49:20,749 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:49:20,749 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:49:20,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1794932654, now seen corresponding path program 2 times [2023-08-25 04:49:20,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:49:20,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225905303] [2023-08-25 04:49:20,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:49:20,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:49:20,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:49:20,850 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-25 04:49:20,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:49:20,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225905303] [2023-08-25 04:49:20,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225905303] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 04:49:20,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [551817883] [2023-08-25 04:49:20,850 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 04:49:20,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 04:49:20,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 04:49:20,851 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 04:49:20,853 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 04:49:20,945 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-25 04:49:20,946 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 04:49:20,947 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 19 conjunts are in the unsatisfiable core [2023-08-25 04:49:20,949 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 04:49:20,992 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-25 04:49:21,013 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-25 04:49:21,045 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 04:49:21,045 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-08-25 04:49:21,087 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 04:49:21,087 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-08-25 04:49:21,110 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-25 04:49:21,110 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-25 04:49:21,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [551817883] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:49:21,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-25 04:49:21,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 11 [2023-08-25 04:49:21,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123437800] [2023-08-25 04:49:21,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:49:21,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 04:49:21,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:49:21,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 04:49:21,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-08-25 04:49:21,113 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 629 [2023-08-25 04:49:21,114 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 125 transitions, 352 flow. Second operand has 7 states, 7 states have (on average 257.85714285714283) internal successors, (1805), 7 states have internal predecessors, (1805), 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 04:49:21,114 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:49:21,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 629 [2023-08-25 04:49:21,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:49:22,927 INFO L124 PetriNetUnfolderBase]: 12572/19697 cut-off events. [2023-08-25 04:49:22,927 INFO L125 PetriNetUnfolderBase]: For 928/928 co-relation queries the response was YES. [2023-08-25 04:49:22,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39966 conditions, 19697 events. 12572/19697 cut-off events. For 928/928 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 127844 event pairs, 848 based on Foata normal form. 0/16799 useless extension candidates. Maximal degree in co-relation 39955. Up to 7240 conditions per place. [2023-08-25 04:49:23,022 INFO L140 encePairwiseOnDemand]: 623/629 looper letters, 360 selfloop transitions, 5 changer transitions 0/392 dead transitions. [2023-08-25 04:49:23,022 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 392 transitions, 1676 flow [2023-08-25 04:49:23,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 04:49:23,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 04:49:23,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2135 transitions. [2023-08-25 04:49:23,027 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4848966613672496 [2023-08-25 04:49:23,027 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2135 transitions. [2023-08-25 04:49:23,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2135 transitions. [2023-08-25 04:49:23,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:49:23,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2135 transitions. [2023-08-25 04:49:23,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 305.0) internal successors, (2135), 7 states have internal predecessors, (2135), 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 04:49:23,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 629.0) internal successors, (5032), 8 states have internal predecessors, (5032), 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 04:49:23,036 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 629.0) internal successors, (5032), 8 states have internal predecessors, (5032), 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 04:49:23,036 INFO L175 Difference]: Start difference. First operand has 126 places, 125 transitions, 352 flow. Second operand 7 states and 2135 transitions. [2023-08-25 04:49:23,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 392 transitions, 1676 flow [2023-08-25 04:49:23,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 392 transitions, 1660 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-25 04:49:23,043 INFO L231 Difference]: Finished difference. Result has 130 places, 124 transitions, 344 flow [2023-08-25 04:49:23,043 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=344, PETRI_PLACES=130, PETRI_TRANSITIONS=124} [2023-08-25 04:49:23,044 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 2 predicate places. [2023-08-25 04:49:23,044 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 124 transitions, 344 flow [2023-08-25 04:49:23,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 257.85714285714283) internal successors, (1805), 7 states have internal predecessors, (1805), 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 04:49:23,045 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:49:23,045 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:49:23,050 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 04:49:23,250 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,SelfDestructingSolverStorable6 [2023-08-25 04:49:23,251 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:49:23,251 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:49:23,251 INFO L85 PathProgramCache]: Analyzing trace with hash 934178121, now seen corresponding path program 1 times [2023-08-25 04:49:23,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:49:23,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8290304] [2023-08-25 04:49:23,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:49:23,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:49:23,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:49:23,312 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-25 04:49:23,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:49:23,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8290304] [2023-08-25 04:49:23,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8290304] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:49:23,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:49:23,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:49:23,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953885260] [2023-08-25 04:49:23,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:49:23,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:49:23,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:49:23,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:49:23,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:49:23,319 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 629 [2023-08-25 04:49:23,320 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 124 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 323.3333333333333) internal successors, (970), 3 states have internal predecessors, (970), 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 04:49:23,320 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:49:23,320 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 629 [2023-08-25 04:49:23,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:49:23,612 INFO L124 PetriNetUnfolderBase]: 836/2567 cut-off events. [2023-08-25 04:49:23,612 INFO L125 PetriNetUnfolderBase]: For 370/370 co-relation queries the response was YES. [2023-08-25 04:49:23,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4448 conditions, 2567 events. 836/2567 cut-off events. For 370/370 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 18520 event pairs, 178 based on Foata normal form. 0/2281 useless extension candidates. Maximal degree in co-relation 4436. Up to 1162 conditions per place. [2023-08-25 04:49:23,624 INFO L140 encePairwiseOnDemand]: 623/629 looper letters, 69 selfloop transitions, 2 changer transitions 0/137 dead transitions. [2023-08-25 04:49:23,624 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 137 transitions, 524 flow [2023-08-25 04:49:23,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:49:23,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:49:23,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1021 transitions. [2023-08-25 04:49:23,626 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5410704822469529 [2023-08-25 04:49:23,626 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1021 transitions. [2023-08-25 04:49:23,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1021 transitions. [2023-08-25 04:49:23,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:49:23,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1021 transitions. [2023-08-25 04:49:23,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 340.3333333333333) internal successors, (1021), 3 states have internal predecessors, (1021), 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 04:49:23,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 629.0) internal successors, (2516), 4 states have internal predecessors, (2516), 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 04:49:23,631 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 629.0) internal successors, (2516), 4 states have internal predecessors, (2516), 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 04:49:23,631 INFO L175 Difference]: Start difference. First operand has 130 places, 124 transitions, 344 flow. Second operand 3 states and 1021 transitions. [2023-08-25 04:49:23,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 137 transitions, 524 flow [2023-08-25 04:49:23,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 137 transitions, 513 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 04:49:23,634 INFO L231 Difference]: Finished difference. Result has 124 places, 122 transitions, 341 flow [2023-08-25 04:49:23,634 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=327, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=341, PETRI_PLACES=124, PETRI_TRANSITIONS=122} [2023-08-25 04:49:23,635 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, -4 predicate places. [2023-08-25 04:49:23,635 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 122 transitions, 341 flow [2023-08-25 04:49:23,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 323.3333333333333) internal successors, (970), 3 states have internal predecessors, (970), 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 04:49:23,636 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:49:23,636 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:49:23,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 04:49:23,636 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:49:23,636 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:49:23,636 INFO L85 PathProgramCache]: Analyzing trace with hash 2093807512, now seen corresponding path program 1 times [2023-08-25 04:49:23,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:49:23,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264158257] [2023-08-25 04:49:23,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:49:23,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:49:23,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:49:23,754 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-25 04:49:23,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:49:23,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264158257] [2023-08-25 04:49:23,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264158257] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 04:49:23,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644037349] [2023-08-25 04:49:23,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:49:23,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 04:49:23,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 04:49:23,756 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 04:49:23,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-25 04:49:23,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:49:23,866 INFO L262 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-25 04:49:23,867 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 04:49:23,913 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-25 04:49:23,914 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 04:49:23,939 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-25 04:49:23,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644037349] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 04:49:23,939 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 04:49:23,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-08-25 04:49:23,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38825987] [2023-08-25 04:49:23,940 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 04:49:23,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-25 04:49:23,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:49:23,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-25 04:49:23,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2023-08-25 04:49:23,943 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 629 [2023-08-25 04:49:23,945 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 122 transitions, 341 flow. Second operand has 12 states, 12 states have (on average 299.5) internal successors, (3594), 12 states have internal predecessors, (3594), 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 04:49:23,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:49:23,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 629 [2023-08-25 04:49:23,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:49:24,110 INFO L124 PetriNetUnfolderBase]: 507/1695 cut-off events. [2023-08-25 04:49:24,110 INFO L125 PetriNetUnfolderBase]: For 140/164 co-relation queries the response was YES. [2023-08-25 04:49:24,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2827 conditions, 1695 events. 507/1695 cut-off events. For 140/164 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 11960 event pairs, 250 based on Foata normal form. 1/1447 useless extension candidates. Maximal degree in co-relation 2815. Up to 774 conditions per place. [2023-08-25 04:49:24,117 INFO L140 encePairwiseOnDemand]: 624/629 looper letters, 36 selfloop transitions, 12 changer transitions 0/124 dead transitions. [2023-08-25 04:49:24,117 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 124 transitions, 449 flow [2023-08-25 04:49:24,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 04:49:24,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 04:49:24,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2133 transitions. [2023-08-25 04:49:24,121 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4844424256188962 [2023-08-25 04:49:24,121 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2133 transitions. [2023-08-25 04:49:24,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2133 transitions. [2023-08-25 04:49:24,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:49:24,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2133 transitions. [2023-08-25 04:49:24,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 304.7142857142857) internal successors, (2133), 7 states have internal predecessors, (2133), 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 04:49:24,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 629.0) internal successors, (5032), 8 states have internal predecessors, (5032), 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 04:49:24,129 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 629.0) internal successors, (5032), 8 states have internal predecessors, (5032), 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 04:49:24,129 INFO L175 Difference]: Start difference. First operand has 124 places, 122 transitions, 341 flow. Second operand 7 states and 2133 transitions. [2023-08-25 04:49:24,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 124 transitions, 449 flow [2023-08-25 04:49:24,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 124 transitions, 449 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:49:24,131 INFO L231 Difference]: Finished difference. Result has 131 places, 124 transitions, 387 flow [2023-08-25 04:49:24,132 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=387, PETRI_PLACES=131, PETRI_TRANSITIONS=124} [2023-08-25 04:49:24,132 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 3 predicate places. [2023-08-25 04:49:24,132 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 124 transitions, 387 flow [2023-08-25 04:49:24,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 299.5) internal successors, (3594), 12 states have internal predecessors, (3594), 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 04:49:24,133 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:49:24,134 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:49:24,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-25 04:49:24,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 04:49:24,338 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:49:24,339 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:49:24,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1501222900, now seen corresponding path program 2 times [2023-08-25 04:49:24,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:49:24,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545657827] [2023-08-25 04:49:24,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:49:24,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:49:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:49:24,665 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 04:49:24,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:49:24,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545657827] [2023-08-25 04:49:24,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545657827] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:49:24,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:49:24,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:49:24,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681571768] [2023-08-25 04:49:24,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:49:24,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 04:49:24,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:49:24,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 04:49:24,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 04:49:24,667 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 629 [2023-08-25 04:49:24,668 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 124 transitions, 387 flow. Second operand has 6 states, 6 states have (on average 251.5) internal successors, (1509), 6 states have internal predecessors, (1509), 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 04:49:24,668 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:49:24,668 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 629 [2023-08-25 04:49:24,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:49:26,405 INFO L124 PetriNetUnfolderBase]: 13624/22366 cut-off events. [2023-08-25 04:49:26,406 INFO L125 PetriNetUnfolderBase]: For 1017/1017 co-relation queries the response was YES. [2023-08-25 04:49:26,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46147 conditions, 22366 events. 13624/22366 cut-off events. For 1017/1017 co-relation queries the response was YES. Maximal size of possible extension queue 357. Compared 146494 event pairs, 2282 based on Foata normal form. 0/19860 useless extension candidates. Maximal degree in co-relation 46133. Up to 13671 conditions per place. [2023-08-25 04:49:26,494 INFO L140 encePairwiseOnDemand]: 622/629 looper letters, 261 selfloop transitions, 5 changer transitions 0/287 dead transitions. [2023-08-25 04:49:26,494 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 287 transitions, 1263 flow [2023-08-25 04:49:26,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 04:49:26,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 04:49:26,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1749 transitions. [2023-08-25 04:49:26,499 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46343402225755165 [2023-08-25 04:49:26,499 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1749 transitions. [2023-08-25 04:49:26,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1749 transitions. [2023-08-25 04:49:26,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:49:26,500 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1749 transitions. [2023-08-25 04:49:26,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 291.5) internal successors, (1749), 6 states have internal predecessors, (1749), 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 04:49:26,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 629.0) internal successors, (4403), 7 states have internal predecessors, (4403), 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 04:49:26,507 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 629.0) internal successors, (4403), 7 states have internal predecessors, (4403), 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 04:49:26,507 INFO L175 Difference]: Start difference. First operand has 131 places, 124 transitions, 387 flow. Second operand 6 states and 1749 transitions. [2023-08-25 04:49:26,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 287 transitions, 1263 flow [2023-08-25 04:49:26,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 287 transitions, 1239 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-08-25 04:49:26,510 INFO L231 Difference]: Finished difference. Result has 130 places, 122 transitions, 369 flow [2023-08-25 04:49:26,511 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=369, PETRI_PLACES=130, PETRI_TRANSITIONS=122} [2023-08-25 04:49:26,511 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 2 predicate places. [2023-08-25 04:49:26,511 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 122 transitions, 369 flow [2023-08-25 04:49:26,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 251.5) internal successors, (1509), 6 states have internal predecessors, (1509), 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 04:49:26,512 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:49:26,512 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:49:26,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 04:49:26,512 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:49:26,512 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:49:26,512 INFO L85 PathProgramCache]: Analyzing trace with hash 665753866, now seen corresponding path program 1 times [2023-08-25 04:49:26,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:49:26,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813077114] [2023-08-25 04:49:26,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:49:26,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:49:26,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:49:26,902 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 04:49:26,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:49:26,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813077114] [2023-08-25 04:49:26,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813077114] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:49:26,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:49:26,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:49:26,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414565310] [2023-08-25 04:49:26,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:49:26,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 04:49:26,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:49:26,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 04:49:26,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 04:49:26,906 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 629 [2023-08-25 04:49:26,907 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 122 transitions, 369 flow. Second operand has 6 states, 6 states have (on average 251.66666666666666) internal successors, (1510), 6 states have internal predecessors, (1510), 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 04:49:26,907 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:49:26,907 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 629 [2023-08-25 04:49:26,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:49:28,740 INFO L124 PetriNetUnfolderBase]: 12258/20394 cut-off events. [2023-08-25 04:49:28,740 INFO L125 PetriNetUnfolderBase]: For 1825/1825 co-relation queries the response was YES. [2023-08-25 04:49:28,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42998 conditions, 20394 events. 12258/20394 cut-off events. For 1825/1825 co-relation queries the response was YES. Maximal size of possible extension queue 340. Compared 135241 event pairs, 1960 based on Foata normal form. 0/18605 useless extension candidates. Maximal degree in co-relation 42983. Up to 12602 conditions per place. [2023-08-25 04:49:28,821 INFO L140 encePairwiseOnDemand]: 622/629 looper letters, 274 selfloop transitions, 5 changer transitions 0/302 dead transitions. [2023-08-25 04:49:28,821 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 302 transitions, 1364 flow [2023-08-25 04:49:28,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 04:49:28,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 04:49:28,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1758 transitions. [2023-08-25 04:49:28,825 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.465818759936407 [2023-08-25 04:49:28,825 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1758 transitions. [2023-08-25 04:49:28,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1758 transitions. [2023-08-25 04:49:28,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:49:28,825 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1758 transitions. [2023-08-25 04:49:28,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 293.0) internal successors, (1758), 6 states have internal predecessors, (1758), 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 04:49:28,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 629.0) internal successors, (4403), 7 states have internal predecessors, (4403), 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 04:49:28,831 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 629.0) internal successors, (4403), 7 states have internal predecessors, (4403), 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 04:49:28,831 INFO L175 Difference]: Start difference. First operand has 130 places, 122 transitions, 369 flow. Second operand 6 states and 1758 transitions. [2023-08-25 04:49:28,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 302 transitions, 1364 flow [2023-08-25 04:49:28,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 302 transitions, 1314 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 04:49:28,835 INFO L231 Difference]: Finished difference. Result has 128 places, 120 transitions, 365 flow [2023-08-25 04:49:28,836 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=355, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=365, PETRI_PLACES=128, PETRI_TRANSITIONS=120} [2023-08-25 04:49:28,836 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 0 predicate places. [2023-08-25 04:49:28,836 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 120 transitions, 365 flow [2023-08-25 04:49:28,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 251.66666666666666) internal successors, (1510), 6 states have internal predecessors, (1510), 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 04:49:28,837 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:49:28,837 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:49:28,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 04:49:28,837 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:49:28,837 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:49:28,837 INFO L85 PathProgramCache]: Analyzing trace with hash -2028694145, now seen corresponding path program 1 times [2023-08-25 04:49:28,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:49:28,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973936904] [2023-08-25 04:49:28,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:49:28,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:49:28,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:49:29,263 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 04:49:29,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:49:29,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973936904] [2023-08-25 04:49:29,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973936904] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:49:29,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:49:29,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:49:29,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597579590] [2023-08-25 04:49:29,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:49:29,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 04:49:29,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:49:29,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 04:49:29,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 04:49:29,267 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 629 [2023-08-25 04:49:29,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 120 transitions, 365 flow. Second operand has 6 states, 6 states have (on average 259.6666666666667) internal successors, (1558), 6 states have internal predecessors, (1558), 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 04:49:29,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:49:29,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 629 [2023-08-25 04:49:29,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:49:31,175 INFO L124 PetriNetUnfolderBase]: 11182/18711 cut-off events. [2023-08-25 04:49:31,175 INFO L125 PetriNetUnfolderBase]: For 1727/1727 co-relation queries the response was YES. [2023-08-25 04:49:31,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39311 conditions, 18711 events. 11182/18711 cut-off events. For 1727/1727 co-relation queries the response was YES. Maximal size of possible extension queue 321. Compared 120712 event pairs, 9037 based on Foata normal form. 0/17082 useless extension candidates. Maximal degree in co-relation 39296. Up to 16617 conditions per place. [2023-08-25 04:49:31,247 INFO L140 encePairwiseOnDemand]: 624/629 looper letters, 210 selfloop transitions, 4 changer transitions 0/239 dead transitions. [2023-08-25 04:49:31,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 239 transitions, 1079 flow [2023-08-25 04:49:31,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 04:49:31,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 04:49:31,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1738 transitions. [2023-08-25 04:49:31,251 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4605193428722841 [2023-08-25 04:49:31,251 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1738 transitions. [2023-08-25 04:49:31,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1738 transitions. [2023-08-25 04:49:31,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:49:31,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1738 transitions. [2023-08-25 04:49:31,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 289.6666666666667) internal successors, (1738), 6 states have internal predecessors, (1738), 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 04:49:31,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 629.0) internal successors, (4403), 7 states have internal predecessors, (4403), 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 04:49:31,261 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 629.0) internal successors, (4403), 7 states have internal predecessors, (4403), 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 04:49:31,261 INFO L175 Difference]: Start difference. First operand has 128 places, 120 transitions, 365 flow. Second operand 6 states and 1738 transitions. [2023-08-25 04:49:31,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 239 transitions, 1079 flow [2023-08-25 04:49:31,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 239 transitions, 1029 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 04:49:31,266 INFO L231 Difference]: Finished difference. Result has 127 places, 119 transitions, 361 flow [2023-08-25 04:49:31,267 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=353, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=361, PETRI_PLACES=127, PETRI_TRANSITIONS=119} [2023-08-25 04:49:31,267 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, -1 predicate places. [2023-08-25 04:49:31,267 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 119 transitions, 361 flow [2023-08-25 04:49:31,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 259.6666666666667) internal successors, (1558), 6 states have internal predecessors, (1558), 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 04:49:31,268 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:49:31,268 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:49:31,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 04:49:31,268 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:49:31,269 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:49:31,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1755776816, now seen corresponding path program 1 times [2023-08-25 04:49:31,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:49:31,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294312011] [2023-08-25 04:49:31,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:49:31,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:49:31,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:49:31,686 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 04:49:31,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:49:31,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294312011] [2023-08-25 04:49:31,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294312011] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:49:31,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:49:31,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:49:31,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646963556] [2023-08-25 04:49:31,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:49:31,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 04:49:31,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:49:31,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 04:49:31,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 04:49:31,690 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 629 [2023-08-25 04:49:31,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 119 transitions, 361 flow. Second operand has 6 states, 6 states have (on average 252.5) internal successors, (1515), 6 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 04:49:31,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:49:31,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 629 [2023-08-25 04:49:31,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:49:33,186 INFO L124 PetriNetUnfolderBase]: 11174/18558 cut-off events. [2023-08-25 04:49:33,186 INFO L125 PetriNetUnfolderBase]: For 987/987 co-relation queries the response was YES. [2023-08-25 04:49:33,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38252 conditions, 18558 events. 11174/18558 cut-off events. For 987/987 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 119448 event pairs, 3762 based on Foata normal form. 0/17163 useless extension candidates. Maximal degree in co-relation 38237. Up to 7935 conditions per place. [2023-08-25 04:49:33,253 INFO L140 encePairwiseOnDemand]: 622/629 looper letters, 263 selfloop transitions, 5 changer transitions 0/291 dead transitions. [2023-08-25 04:49:33,253 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 291 transitions, 1298 flow [2023-08-25 04:49:33,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 04:49:33,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 04:49:33,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1751 transitions. [2023-08-25 04:49:33,257 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46396396396396394 [2023-08-25 04:49:33,257 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1751 transitions. [2023-08-25 04:49:33,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1751 transitions. [2023-08-25 04:49:33,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:49:33,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1751 transitions. [2023-08-25 04:49:33,260 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 291.8333333333333) internal successors, (1751), 6 states have internal predecessors, (1751), 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 04:49:33,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 629.0) internal successors, (4403), 7 states have internal predecessors, (4403), 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 04:49:33,263 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 629.0) internal successors, (4403), 7 states have internal predecessors, (4403), 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 04:49:33,264 INFO L175 Difference]: Start difference. First operand has 127 places, 119 transitions, 361 flow. Second operand 6 states and 1751 transitions. [2023-08-25 04:49:33,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 291 transitions, 1298 flow [2023-08-25 04:49:33,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 291 transitions, 1263 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 04:49:33,267 INFO L231 Difference]: Finished difference. Result has 126 places, 117 transitions, 360 flow [2023-08-25 04:49:33,267 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=360, PETRI_PLACES=126, PETRI_TRANSITIONS=117} [2023-08-25 04:49:33,268 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, -2 predicate places. [2023-08-25 04:49:33,268 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 117 transitions, 360 flow [2023-08-25 04:49:33,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 252.5) internal successors, (1515), 6 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 04:49:33,268 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:49:33,268 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:49:33,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 04:49:33,269 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:49:33,269 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:49:33,269 INFO L85 PathProgramCache]: Analyzing trace with hash -30840014, now seen corresponding path program 1 times [2023-08-25 04:49:33,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:49:33,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166036925] [2023-08-25 04:49:33,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:49:33,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:49:33,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:49:33,538 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 04:49:33,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:49:33,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166036925] [2023-08-25 04:49:33,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166036925] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:49:33,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:49:33,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:49:33,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823989557] [2023-08-25 04:49:33,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:49:33,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 04:49:33,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:49:33,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 04:49:33,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 04:49:33,541 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 629 [2023-08-25 04:49:33,542 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 117 transitions, 360 flow. Second operand has 6 states, 6 states have (on average 252.5) internal successors, (1515), 6 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 04:49:33,542 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:49:33,542 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 629 [2023-08-25 04:49:33,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:49:35,353 INFO L124 PetriNetUnfolderBase]: 11483/19093 cut-off events. [2023-08-25 04:49:35,354 INFO L125 PetriNetUnfolderBase]: For 1627/1627 co-relation queries the response was YES. [2023-08-25 04:49:35,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40426 conditions, 19093 events. 11483/19093 cut-off events. For 1627/1627 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 123626 event pairs, 3975 based on Foata normal form. 0/18211 useless extension candidates. Maximal degree in co-relation 40411. Up to 8190 conditions per place. [2023-08-25 04:49:35,418 INFO L140 encePairwiseOnDemand]: 622/629 looper letters, 237 selfloop transitions, 5 changer transitions 0/263 dead transitions. [2023-08-25 04:49:35,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 263 transitions, 1195 flow [2023-08-25 04:49:35,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 04:49:35,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 04:49:35,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1725 transitions. [2023-08-25 04:49:35,421 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45707472178060415 [2023-08-25 04:49:35,421 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1725 transitions. [2023-08-25 04:49:35,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1725 transitions. [2023-08-25 04:49:35,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:49:35,422 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1725 transitions. [2023-08-25 04:49:35,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 287.5) internal successors, (1725), 6 states have internal predecessors, (1725), 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 04:49:35,428 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 629.0) internal successors, (4403), 7 states have internal predecessors, (4403), 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 04:49:35,428 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 629.0) internal successors, (4403), 7 states have internal predecessors, (4403), 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 04:49:35,428 INFO L175 Difference]: Start difference. First operand has 126 places, 117 transitions, 360 flow. Second operand 6 states and 1725 transitions. [2023-08-25 04:49:35,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 263 transitions, 1195 flow [2023-08-25 04:49:35,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 263 transitions, 1145 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 04:49:35,435 INFO L231 Difference]: Finished difference. Result has 124 places, 115 transitions, 356 flow [2023-08-25 04:49:35,435 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=356, PETRI_PLACES=124, PETRI_TRANSITIONS=115} [2023-08-25 04:49:35,436 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, -4 predicate places. [2023-08-25 04:49:35,436 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 115 transitions, 356 flow [2023-08-25 04:49:35,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 252.5) internal successors, (1515), 6 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 04:49:35,436 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:49:35,436 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:49:35,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-25 04:49:35,436 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:49:35,437 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:49:35,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1831912007, now seen corresponding path program 1 times [2023-08-25 04:49:35,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:49:35,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446963277] [2023-08-25 04:49:35,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:49:35,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:49:35,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:49:35,546 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 04:49:35,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:49:35,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446963277] [2023-08-25 04:49:35,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446963277] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:49:35,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:49:35,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 04:49:35,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363566449] [2023-08-25 04:49:35,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:49:35,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 04:49:35,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:49:35,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 04:49:35,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 04:49:35,548 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 629 [2023-08-25 04:49:35,549 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 115 transitions, 356 flow. Second operand has 4 states, 4 states have (on average 302.75) internal successors, (1211), 4 states have internal predecessors, (1211), 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 04:49:35,549 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:49:35,549 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 629 [2023-08-25 04:49:35,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:49:35,906 INFO L124 PetriNetUnfolderBase]: 1890/4083 cut-off events. [2023-08-25 04:49:35,906 INFO L125 PetriNetUnfolderBase]: For 496/523 co-relation queries the response was YES. [2023-08-25 04:49:35,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8057 conditions, 4083 events. 1890/4083 cut-off events. For 496/523 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 29869 event pairs, 509 based on Foata normal form. 2/3798 useless extension candidates. Maximal degree in co-relation 8042. Up to 1778 conditions per place. [2023-08-25 04:49:35,925 INFO L140 encePairwiseOnDemand]: 624/629 looper letters, 106 selfloop transitions, 5 changer transitions 0/163 dead transitions. [2023-08-25 04:49:35,925 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 163 transitions, 689 flow [2023-08-25 04:49:35,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 04:49:35,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 04:49:35,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1290 transitions. [2023-08-25 04:49:35,937 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5127186009538951 [2023-08-25 04:49:35,937 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1290 transitions. [2023-08-25 04:49:35,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1290 transitions. [2023-08-25 04:49:35,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:49:35,938 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1290 transitions. [2023-08-25 04:49:35,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 322.5) internal successors, (1290), 4 states have internal predecessors, (1290), 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 04:49:35,942 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 629.0) internal successors, (3145), 5 states have internal predecessors, (3145), 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 04:49:35,943 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 629.0) internal successors, (3145), 5 states have internal predecessors, (3145), 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 04:49:35,943 INFO L175 Difference]: Start difference. First operand has 124 places, 115 transitions, 356 flow. Second operand 4 states and 1290 transitions. [2023-08-25 04:49:35,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 163 transitions, 689 flow [2023-08-25 04:49:35,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 163 transitions, 677 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 04:49:35,946 INFO L231 Difference]: Finished difference. Result has 125 places, 119 transitions, 387 flow [2023-08-25 04:49:35,946 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=387, PETRI_PLACES=125, PETRI_TRANSITIONS=119} [2023-08-25 04:49:35,946 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, -3 predicate places. [2023-08-25 04:49:35,946 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 119 transitions, 387 flow [2023-08-25 04:49:35,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 302.75) internal successors, (1211), 4 states have internal predecessors, (1211), 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 04:49:35,947 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:49:35,947 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:49:35,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-25 04:49:35,947 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:49:35,947 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:49:35,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1350398131, now seen corresponding path program 2 times [2023-08-25 04:49:35,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:49:35,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476607457] [2023-08-25 04:49:35,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:49:35,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:49:36,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:49:36,116 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 04:49:36,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:49:36,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476607457] [2023-08-25 04:49:36,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476607457] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:49:36,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:49:36,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 04:49:36,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731797665] [2023-08-25 04:49:36,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:49:36,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 04:49:36,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:49:36,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 04:49:36,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 04:49:36,119 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 629 [2023-08-25 04:49:36,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 119 transitions, 387 flow. Second operand has 4 states, 4 states have (on average 302.75) internal successors, (1211), 4 states have internal predecessors, (1211), 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 04:49:36,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:49:36,120 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 629 [2023-08-25 04:49:36,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:49:37,068 INFO L124 PetriNetUnfolderBase]: 4766/9747 cut-off events. [2023-08-25 04:49:37,068 INFO L125 PetriNetUnfolderBase]: For 1943/1970 co-relation queries the response was YES. [2023-08-25 04:49:37,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19596 conditions, 9747 events. 4766/9747 cut-off events. For 1943/1970 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 76805 event pairs, 2400 based on Foata normal form. 65/9201 useless extension candidates. Maximal degree in co-relation 19579. Up to 3800 conditions per place. [2023-08-25 04:49:37,104 INFO L140 encePairwiseOnDemand]: 624/629 looper letters, 147 selfloop transitions, 6 changer transitions 0/197 dead transitions. [2023-08-25 04:49:37,104 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 197 transitions, 909 flow [2023-08-25 04:49:37,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 04:49:37,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 04:49:37,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1323 transitions. [2023-08-25 04:49:37,107 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5258346581875993 [2023-08-25 04:49:37,107 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1323 transitions. [2023-08-25 04:49:37,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1323 transitions. [2023-08-25 04:49:37,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:49:37,107 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1323 transitions. [2023-08-25 04:49:37,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 330.75) internal successors, (1323), 4 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 04:49:37,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 629.0) internal successors, (3145), 5 states have internal predecessors, (3145), 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 04:49:37,111 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 629.0) internal successors, (3145), 5 states have internal predecessors, (3145), 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 04:49:37,111 INFO L175 Difference]: Start difference. First operand has 125 places, 119 transitions, 387 flow. Second operand 4 states and 1323 transitions. [2023-08-25 04:49:37,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 197 transitions, 909 flow [2023-08-25 04:49:37,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 197 transitions, 909 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:49:37,115 INFO L231 Difference]: Finished difference. Result has 130 places, 123 transitions, 431 flow [2023-08-25 04:49:37,115 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=387, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=431, PETRI_PLACES=130, PETRI_TRANSITIONS=123} [2023-08-25 04:49:37,116 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 2 predicate places. [2023-08-25 04:49:37,116 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 123 transitions, 431 flow [2023-08-25 04:49:37,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 302.75) internal successors, (1211), 4 states have internal predecessors, (1211), 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 04:49:37,116 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:49:37,116 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:49:37,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-25 04:49:37,116 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:49:37,116 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:49:37,116 INFO L85 PathProgramCache]: Analyzing trace with hash -890841391, now seen corresponding path program 3 times [2023-08-25 04:49:37,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:49:37,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279527836] [2023-08-25 04:49:37,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:49:37,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:49:37,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:49:37,208 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 04:49:37,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:49:37,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279527836] [2023-08-25 04:49:37,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279527836] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:49:37,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:49:37,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 04:49:37,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897449910] [2023-08-25 04:49:37,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:49:37,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 04:49:37,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:49:37,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 04:49:37,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 04:49:37,210 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 629 [2023-08-25 04:49:37,211 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 123 transitions, 431 flow. Second operand has 4 states, 4 states have (on average 302.75) internal successors, (1211), 4 states have internal predecessors, (1211), 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 04:49:37,211 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:49:37,211 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 629 [2023-08-25 04:49:37,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:49:38,376 INFO L124 PetriNetUnfolderBase]: 5844/11381 cut-off events. [2023-08-25 04:49:38,376 INFO L125 PetriNetUnfolderBase]: For 3175/3193 co-relation queries the response was YES. [2023-08-25 04:49:38,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24073 conditions, 11381 events. 5844/11381 cut-off events. For 3175/3193 co-relation queries the response was YES. Maximal size of possible extension queue 293. Compared 89290 event pairs, 2184 based on Foata normal form. 36/10835 useless extension candidates. Maximal degree in co-relation 24053. Up to 7675 conditions per place. [2023-08-25 04:49:38,416 INFO L140 encePairwiseOnDemand]: 624/629 looper letters, 131 selfloop transitions, 6 changer transitions 0/181 dead transitions. [2023-08-25 04:49:38,416 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 181 transitions, 871 flow [2023-08-25 04:49:38,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 04:49:38,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 04:49:38,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1308 transitions. [2023-08-25 04:49:38,418 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.519872813990461 [2023-08-25 04:49:38,419 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1308 transitions. [2023-08-25 04:49:38,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1308 transitions. [2023-08-25 04:49:38,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:49:38,419 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1308 transitions. [2023-08-25 04:49:38,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 327.0) internal successors, (1308), 4 states have internal predecessors, (1308), 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 04:49:38,423 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 629.0) internal successors, (3145), 5 states have internal predecessors, (3145), 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 04:49:38,423 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 629.0) internal successors, (3145), 5 states have internal predecessors, (3145), 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 04:49:38,423 INFO L175 Difference]: Start difference. First operand has 130 places, 123 transitions, 431 flow. Second operand 4 states and 1308 transitions. [2023-08-25 04:49:38,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 181 transitions, 871 flow [2023-08-25 04:49:38,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 181 transitions, 866 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 04:49:38,427 INFO L231 Difference]: Finished difference. Result has 135 places, 127 transitions, 486 flow [2023-08-25 04:49:38,427 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=486, PETRI_PLACES=135, PETRI_TRANSITIONS=127} [2023-08-25 04:49:38,428 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 7 predicate places. [2023-08-25 04:49:38,428 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 127 transitions, 486 flow [2023-08-25 04:49:38,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 302.75) internal successors, (1211), 4 states have internal predecessors, (1211), 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 04:49:38,428 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:49:38,428 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:49:38,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-25 04:49:38,428 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:49:38,428 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:49:38,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1813884805, now seen corresponding path program 4 times [2023-08-25 04:49:38,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:49:38,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091433675] [2023-08-25 04:49:38,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:49:38,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:49:38,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:49:38,527 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 04:49:38,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:49:38,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091433675] [2023-08-25 04:49:38,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091433675] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:49:38,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:49:38,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 04:49:38,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50170885] [2023-08-25 04:49:38,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:49:38,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 04:49:38,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:49:38,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 04:49:38,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 04:49:38,530 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 629 [2023-08-25 04:49:38,530 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 127 transitions, 486 flow. Second operand has 4 states, 4 states have (on average 302.75) internal successors, (1211), 4 states have internal predecessors, (1211), 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 04:49:38,530 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:49:38,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 629 [2023-08-25 04:49:38,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:49:39,597 INFO L124 PetriNetUnfolderBase]: 4859/12138 cut-off events. [2023-08-25 04:49:39,597 INFO L125 PetriNetUnfolderBase]: For 5478/5505 co-relation queries the response was YES. [2023-08-25 04:49:39,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24096 conditions, 12138 events. 4859/12138 cut-off events. For 5478/5505 co-relation queries the response was YES. Maximal size of possible extension queue 373. Compared 115008 event pairs, 2038 based on Foata normal form. 58/11530 useless extension candidates. Maximal degree in co-relation 24074. Up to 4550 conditions per place. [2023-08-25 04:49:39,660 INFO L140 encePairwiseOnDemand]: 622/629 looper letters, 128 selfloop transitions, 10 changer transitions 0/190 dead transitions. [2023-08-25 04:49:39,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 190 transitions, 1007 flow [2023-08-25 04:49:39,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 04:49:39,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 04:49:39,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1297 transitions. [2023-08-25 04:49:39,663 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5155007949125596 [2023-08-25 04:49:39,663 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1297 transitions. [2023-08-25 04:49:39,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1297 transitions. [2023-08-25 04:49:39,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:49:39,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1297 transitions. [2023-08-25 04:49:39,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 324.25) internal successors, (1297), 4 states have internal predecessors, (1297), 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 04:49:39,667 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 629.0) internal successors, (3145), 5 states have internal predecessors, (3145), 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 04:49:39,668 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 629.0) internal successors, (3145), 5 states have internal predecessors, (3145), 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 04:49:39,668 INFO L175 Difference]: Start difference. First operand has 135 places, 127 transitions, 486 flow. Second operand 4 states and 1297 transitions. [2023-08-25 04:49:39,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 190 transitions, 1007 flow [2023-08-25 04:49:39,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 190 transitions, 1007 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:49:39,673 INFO L231 Difference]: Finished difference. Result has 140 places, 130 transitions, 541 flow [2023-08-25 04:49:39,673 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=541, PETRI_PLACES=140, PETRI_TRANSITIONS=130} [2023-08-25 04:49:39,673 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 12 predicate places. [2023-08-25 04:49:39,673 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 130 transitions, 541 flow [2023-08-25 04:49:39,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 302.75) internal successors, (1211), 4 states have internal predecessors, (1211), 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 04:49:39,674 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:49:39,674 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:49:39,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-25 04:49:39,674 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:49:39,674 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:49:39,674 INFO L85 PathProgramCache]: Analyzing trace with hash 149164586, now seen corresponding path program 1 times [2023-08-25 04:49:39,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:49:39,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703547548] [2023-08-25 04:49:39,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:49:39,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:49:39,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:49:39,799 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 04:49:39,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:49:39,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703547548] [2023-08-25 04:49:39,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703547548] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:49:39,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:49:39,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 04:49:39,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893427486] [2023-08-25 04:49:39,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:49:39,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 04:49:39,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:49:39,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 04:49:39,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 04:49:39,802 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 629 [2023-08-25 04:49:39,802 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 130 transitions, 541 flow. Second operand has 4 states, 4 states have (on average 303.75) internal successors, (1215), 4 states have internal predecessors, (1215), 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 04:49:39,802 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:49:39,802 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 629 [2023-08-25 04:49:39,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:49:41,414 INFO L124 PetriNetUnfolderBase]: 8389/17943 cut-off events. [2023-08-25 04:49:41,414 INFO L125 PetriNetUnfolderBase]: For 8919/8967 co-relation queries the response was YES. [2023-08-25 04:49:41,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37925 conditions, 17943 events. 8389/17943 cut-off events. For 8919/8967 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 160276 event pairs, 4355 based on Foata normal form. 15/16942 useless extension candidates. Maximal degree in co-relation 37900. Up to 8112 conditions per place. [2023-08-25 04:49:41,491 INFO L140 encePairwiseOnDemand]: 623/629 looper letters, 132 selfloop transitions, 7 changer transitions 7/190 dead transitions. [2023-08-25 04:49:41,491 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 190 transitions, 1034 flow [2023-08-25 04:49:41,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 04:49:41,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 04:49:41,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1605 transitions. [2023-08-25 04:49:41,494 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5103338632750397 [2023-08-25 04:49:41,495 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1605 transitions. [2023-08-25 04:49:41,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1605 transitions. [2023-08-25 04:49:41,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:49:41,495 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1605 transitions. [2023-08-25 04:49:41,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 321.0) internal successors, (1605), 5 states have internal predecessors, (1605), 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 04:49:41,500 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 629.0) internal successors, (3774), 6 states have internal predecessors, (3774), 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 04:49:41,501 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 629.0) internal successors, (3774), 6 states have internal predecessors, (3774), 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 04:49:41,501 INFO L175 Difference]: Start difference. First operand has 140 places, 130 transitions, 541 flow. Second operand 5 states and 1605 transitions. [2023-08-25 04:49:41,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 190 transitions, 1034 flow [2023-08-25 04:49:41,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 190 transitions, 1022 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 04:49:41,507 INFO L231 Difference]: Finished difference. Result has 145 places, 130 transitions, 557 flow [2023-08-25 04:49:41,508 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=534, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=557, PETRI_PLACES=145, PETRI_TRANSITIONS=130} [2023-08-25 04:49:41,508 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 17 predicate places. [2023-08-25 04:49:41,508 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 130 transitions, 557 flow [2023-08-25 04:49:41,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 303.75) internal successors, (1215), 4 states have internal predecessors, (1215), 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 04:49:41,508 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:49:41,509 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:49:41,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-25 04:49:41,509 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:49:41,509 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:49:41,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1193172810, now seen corresponding path program 1 times [2023-08-25 04:49:41,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:49:41,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121672302] [2023-08-25 04:49:41,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:49:41,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:49:41,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:49:41,630 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 04:49:41,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:49:41,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121672302] [2023-08-25 04:49:41,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121672302] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:49:41,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:49:41,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 04:49:41,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816386776] [2023-08-25 04:49:41,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:49:41,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 04:49:41,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:49:41,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 04:49:41,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 04:49:41,634 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 629 [2023-08-25 04:49:41,634 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 130 transitions, 557 flow. Second operand has 4 states, 4 states have (on average 303.25) internal successors, (1213), 4 states have internal predecessors, (1213), 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 04:49:41,634 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:49:41,634 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 629 [2023-08-25 04:49:41,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:49:42,846 INFO L124 PetriNetUnfolderBase]: 4819/12268 cut-off events. [2023-08-25 04:49:42,846 INFO L125 PetriNetUnfolderBase]: For 8756/8809 co-relation queries the response was YES. [2023-08-25 04:49:42,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25305 conditions, 12268 events. 4819/12268 cut-off events. For 8756/8809 co-relation queries the response was YES. Maximal size of possible extension queue 401. Compared 118081 event pairs, 2328 based on Foata normal form. 6/11566 useless extension candidates. Maximal degree in co-relation 25278. Up to 4585 conditions per place. [2023-08-25 04:49:42,907 INFO L140 encePairwiseOnDemand]: 623/629 looper letters, 114 selfloop transitions, 7 changer transitions 3/176 dead transitions. [2023-08-25 04:49:42,907 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 176 transitions, 986 flow [2023-08-25 04:49:42,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 04:49:42,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 04:49:42,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1285 transitions. [2023-08-25 04:49:42,910 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.510731319554849 [2023-08-25 04:49:42,910 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1285 transitions. [2023-08-25 04:49:42,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1285 transitions. [2023-08-25 04:49:42,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:49:42,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1285 transitions. [2023-08-25 04:49:42,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 321.25) internal successors, (1285), 4 states have internal predecessors, (1285), 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 04:49:42,914 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 629.0) internal successors, (3145), 5 states have internal predecessors, (3145), 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 04:49:42,914 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 629.0) internal successors, (3145), 5 states have internal predecessors, (3145), 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 04:49:42,914 INFO L175 Difference]: Start difference. First operand has 145 places, 130 transitions, 557 flow. Second operand 4 states and 1285 transitions. [2023-08-25 04:49:42,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 176 transitions, 986 flow [2023-08-25 04:49:42,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 176 transitions, 956 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-08-25 04:49:42,920 INFO L231 Difference]: Finished difference. Result has 145 places, 130 transitions, 564 flow [2023-08-25 04:49:42,920 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=539, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=564, PETRI_PLACES=145, PETRI_TRANSITIONS=130} [2023-08-25 04:49:42,921 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 17 predicate places. [2023-08-25 04:49:42,921 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 130 transitions, 564 flow [2023-08-25 04:49:42,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 303.25) internal successors, (1213), 4 states have internal predecessors, (1213), 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 04:49:42,921 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:49:42,921 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:49:42,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-25 04:49:42,921 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:49:42,922 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:49:42,922 INFO L85 PathProgramCache]: Analyzing trace with hash -923228107, now seen corresponding path program 1 times [2023-08-25 04:49:42,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:49:42,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200060843] [2023-08-25 04:49:42,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:49:42,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:49:42,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:49:43,565 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 04:49:43,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:49:43,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200060843] [2023-08-25 04:49:43,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200060843] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:49:43,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:49:43,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-25 04:49:43,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492648496] [2023-08-25 04:49:43,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:49:43,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-25 04:49:43,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:49:43,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-25 04:49:43,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-08-25 04:49:43,568 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 629 [2023-08-25 04:49:43,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 130 transitions, 564 flow. Second operand has 13 states, 13 states have (on average 233.30769230769232) internal successors, (3033), 13 states have internal predecessors, (3033), 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 04:49:43,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:49:43,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 629 [2023-08-25 04:49:43,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:49:49,937 INFO L124 PetriNetUnfolderBase]: 31776/57930 cut-off events. [2023-08-25 04:49:49,937 INFO L125 PetriNetUnfolderBase]: For 16322/16339 co-relation queries the response was YES. [2023-08-25 04:49:50,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121312 conditions, 57930 events. 31776/57930 cut-off events. For 16322/16339 co-relation queries the response was YES. Maximal size of possible extension queue 847. Compared 489969 event pairs, 11300 based on Foata normal form. 4/56335 useless extension candidates. Maximal degree in co-relation 121284. Up to 15686 conditions per place. [2023-08-25 04:49:50,356 INFO L140 encePairwiseOnDemand]: 616/629 looper letters, 452 selfloop transitions, 34 changer transitions 0/515 dead transitions. [2023-08-25 04:49:50,356 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 515 transitions, 2503 flow [2023-08-25 04:49:50,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 04:49:50,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 04:49:50,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3210 transitions. [2023-08-25 04:49:50,360 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42527821939586646 [2023-08-25 04:49:50,361 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 3210 transitions. [2023-08-25 04:49:50,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 3210 transitions. [2023-08-25 04:49:50,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:49:50,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 3210 transitions. [2023-08-25 04:49:50,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 267.5) internal successors, (3210), 12 states have internal predecessors, (3210), 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 04:49:50,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 629.0) internal successors, (8177), 13 states have internal predecessors, (8177), 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 04:49:50,369 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 629.0) internal successors, (8177), 13 states have internal predecessors, (8177), 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 04:49:50,369 INFO L175 Difference]: Start difference. First operand has 145 places, 130 transitions, 564 flow. Second operand 12 states and 3210 transitions. [2023-08-25 04:49:50,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 515 transitions, 2503 flow [2023-08-25 04:49:50,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 515 transitions, 2473 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-25 04:49:50,382 INFO L231 Difference]: Finished difference. Result has 159 places, 159 transitions, 801 flow [2023-08-25 04:49:50,382 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=801, PETRI_PLACES=159, PETRI_TRANSITIONS=159} [2023-08-25 04:49:50,382 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 31 predicate places. [2023-08-25 04:49:50,382 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 159 transitions, 801 flow [2023-08-25 04:49:50,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 233.30769230769232) internal successors, (3033), 13 states have internal predecessors, (3033), 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 04:49:50,383 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:49:50,383 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:49:50,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-25 04:49:50,383 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:49:50,383 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:49:50,383 INFO L85 PathProgramCache]: Analyzing trace with hash 890384907, now seen corresponding path program 2 times [2023-08-25 04:49:50,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:49:50,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937388630] [2023-08-25 04:49:50,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:49:50,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:49:50,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:49:51,084 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 04:49:51,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:49:51,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937388630] [2023-08-25 04:49:51,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937388630] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:49:51,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:49:51,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-25 04:49:51,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751643017] [2023-08-25 04:49:51,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:49:51,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-25 04:49:51,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:49:51,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-25 04:49:51,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-08-25 04:49:51,088 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 629 [2023-08-25 04:49:51,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 159 transitions, 801 flow. Second operand has 13 states, 13 states have (on average 233.30769230769232) internal successors, (3033), 13 states have internal predecessors, (3033), 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 04:49:51,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:49:51,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 629 [2023-08-25 04:49:51,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:49:58,447 INFO L124 PetriNetUnfolderBase]: 37518/68337 cut-off events. [2023-08-25 04:49:58,447 INFO L125 PetriNetUnfolderBase]: For 30864/30885 co-relation queries the response was YES. [2023-08-25 04:49:58,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153318 conditions, 68337 events. 37518/68337 cut-off events. For 30864/30885 co-relation queries the response was YES. Maximal size of possible extension queue 1008. Compared 591263 event pairs, 17978 based on Foata normal form. 62/68152 useless extension candidates. Maximal degree in co-relation 153284. Up to 23095 conditions per place. [2023-08-25 04:49:59,009 INFO L140 encePairwiseOnDemand]: 616/629 looper letters, 484 selfloop transitions, 43 changer transitions 0/556 dead transitions. [2023-08-25 04:49:59,009 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 556 transitions, 2953 flow [2023-08-25 04:49:59,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 04:49:59,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 04:49:59,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3231 transitions. [2023-08-25 04:49:59,012 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.428060413354531 [2023-08-25 04:49:59,012 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 3231 transitions. [2023-08-25 04:49:59,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 3231 transitions. [2023-08-25 04:49:59,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:49:59,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 3231 transitions. [2023-08-25 04:49:59,016 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 269.25) internal successors, (3231), 12 states have internal predecessors, (3231), 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 04:49:59,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 629.0) internal successors, (8177), 13 states have internal predecessors, (8177), 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 04:49:59,020 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 629.0) internal successors, (8177), 13 states have internal predecessors, (8177), 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 04:49:59,020 INFO L175 Difference]: Start difference. First operand has 159 places, 159 transitions, 801 flow. Second operand 12 states and 3231 transitions. [2023-08-25 04:49:59,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 556 transitions, 2953 flow [2023-08-25 04:49:59,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 556 transitions, 2944 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-08-25 04:49:59,106 INFO L231 Difference]: Finished difference. Result has 175 places, 188 transitions, 1128 flow [2023-08-25 04:49:59,106 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=792, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1128, PETRI_PLACES=175, PETRI_TRANSITIONS=188} [2023-08-25 04:49:59,106 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 47 predicate places. [2023-08-25 04:49:59,106 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 188 transitions, 1128 flow [2023-08-25 04:49:59,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 233.30769230769232) internal successors, (3033), 13 states have internal predecessors, (3033), 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 04:49:59,107 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:49:59,107 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:49:59,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-25 04:49:59,107 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:49:59,107 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:49:59,107 INFO L85 PathProgramCache]: Analyzing trace with hash -576303391, now seen corresponding path program 3 times [2023-08-25 04:49:59,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:49:59,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468767341] [2023-08-25 04:49:59,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:49:59,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:49:59,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:49:59,754 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 04:49:59,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:49:59,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468767341] [2023-08-25 04:49:59,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468767341] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:49:59,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:49:59,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-25 04:49:59,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233472792] [2023-08-25 04:49:59,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:49:59,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-25 04:49:59,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:49:59,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-25 04:49:59,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-08-25 04:49:59,758 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 629 [2023-08-25 04:49:59,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 188 transitions, 1128 flow. Second operand has 13 states, 13 states have (on average 233.30769230769232) internal successors, (3033), 13 states have internal predecessors, (3033), 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 04:49:59,759 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:49:59,759 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 629 [2023-08-25 04:49:59,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:50:09,136 INFO L124 PetriNetUnfolderBase]: 42503/77146 cut-off events. [2023-08-25 04:50:09,136 INFO L125 PetriNetUnfolderBase]: For 54921/54947 co-relation queries the response was YES. [2023-08-25 04:50:09,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182519 conditions, 77146 events. 42503/77146 cut-off events. For 54921/54947 co-relation queries the response was YES. Maximal size of possible extension queue 1132. Compared 680295 event pairs, 18669 based on Foata normal form. 64/76969 useless extension candidates. Maximal degree in co-relation 182479. Up to 23106 conditions per place. [2023-08-25 04:50:09,897 INFO L140 encePairwiseOnDemand]: 616/629 looper letters, 505 selfloop transitions, 55 changer transitions 0/589 dead transitions. [2023-08-25 04:50:09,898 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 589 transitions, 3565 flow [2023-08-25 04:50:09,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-25 04:50:09,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-25 04:50:09,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 3462 transitions. [2023-08-25 04:50:09,904 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4233826586767763 [2023-08-25 04:50:09,904 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 3462 transitions. [2023-08-25 04:50:09,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 3462 transitions. [2023-08-25 04:50:09,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:50:09,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 3462 transitions. [2023-08-25 04:50:09,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 266.3076923076923) internal successors, (3462), 13 states have internal predecessors, (3462), 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 04:50:09,913 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 629.0) internal successors, (8806), 14 states have internal predecessors, (8806), 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 04:50:09,914 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 629.0) internal successors, (8806), 14 states have internal predecessors, (8806), 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 04:50:09,914 INFO L175 Difference]: Start difference. First operand has 175 places, 188 transitions, 1128 flow. Second operand 13 states and 3462 transitions. [2023-08-25 04:50:09,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 589 transitions, 3565 flow [2023-08-25 04:50:10,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 589 transitions, 3506 flow, removed 29 selfloop flow, removed 1 redundant places. [2023-08-25 04:50:10,146 INFO L231 Difference]: Finished difference. Result has 193 places, 207 transitions, 1481 flow [2023-08-25 04:50:10,146 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=1087, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1481, PETRI_PLACES=193, PETRI_TRANSITIONS=207} [2023-08-25 04:50:10,147 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 65 predicate places. [2023-08-25 04:50:10,147 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 207 transitions, 1481 flow [2023-08-25 04:50:10,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 233.30769230769232) internal successors, (3033), 13 states have internal predecessors, (3033), 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 04:50:10,147 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:50:10,147 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:50:10,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-25 04:50:10,148 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:50:10,148 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:50:10,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1045749637, now seen corresponding path program 4 times [2023-08-25 04:50:10,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:50:10,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054941874] [2023-08-25 04:50:10,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:50:10,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:50:10,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:50:10,926 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 04:50:10,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:50:10,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054941874] [2023-08-25 04:50:10,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054941874] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:50:10,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:50:10,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-25 04:50:10,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235500481] [2023-08-25 04:50:10,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:50:10,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-25 04:50:10,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:50:10,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-25 04:50:10,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-08-25 04:50:10,929 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 629 [2023-08-25 04:50:10,930 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 207 transitions, 1481 flow. Second operand has 13 states, 13 states have (on average 233.30769230769232) internal successors, (3033), 13 states have internal predecessors, (3033), 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 04:50:10,930 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:50:10,931 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 629 [2023-08-25 04:50:10,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:50:22,391 INFO L124 PetriNetUnfolderBase]: 51710/93967 cut-off events. [2023-08-25 04:50:22,391 INFO L125 PetriNetUnfolderBase]: For 92516/92557 co-relation queries the response was YES. [2023-08-25 04:50:23,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 226681 conditions, 93967 events. 51710/93967 cut-off events. For 92516/92557 co-relation queries the response was YES. Maximal size of possible extension queue 1445. Compared 857180 event pairs, 18933 based on Foata normal form. 140/93869 useless extension candidates. Maximal degree in co-relation 226634. Up to 28386 conditions per place. [2023-08-25 04:50:23,724 INFO L140 encePairwiseOnDemand]: 616/629 looper letters, 520 selfloop transitions, 76 changer transitions 0/625 dead transitions. [2023-08-25 04:50:23,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 625 transitions, 4193 flow [2023-08-25 04:50:23,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-25 04:50:23,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-25 04:50:23,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 3479 transitions. [2023-08-25 04:50:23,728 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4254616607557784 [2023-08-25 04:50:23,728 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 3479 transitions. [2023-08-25 04:50:23,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 3479 transitions. [2023-08-25 04:50:23,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:50:23,729 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 3479 transitions. [2023-08-25 04:50:23,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 267.61538461538464) internal successors, (3479), 13 states have internal predecessors, (3479), 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 04:50:23,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 629.0) internal successors, (8806), 14 states have internal predecessors, (8806), 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 04:50:23,736 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 629.0) internal successors, (8806), 14 states have internal predecessors, (8806), 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 04:50:23,736 INFO L175 Difference]: Start difference. First operand has 193 places, 207 transitions, 1481 flow. Second operand 13 states and 3479 transitions. [2023-08-25 04:50:23,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 625 transitions, 4193 flow [2023-08-25 04:50:24,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 625 transitions, 4077 flow, removed 21 selfloop flow, removed 3 redundant places. [2023-08-25 04:50:24,054 INFO L231 Difference]: Finished difference. Result has 209 places, 232 transitions, 1957 flow [2023-08-25 04:50:24,054 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=1404, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1957, PETRI_PLACES=209, PETRI_TRANSITIONS=232} [2023-08-25 04:50:24,055 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 81 predicate places. [2023-08-25 04:50:24,055 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 232 transitions, 1957 flow [2023-08-25 04:50:24,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 233.30769230769232) internal successors, (3033), 13 states have internal predecessors, (3033), 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 04:50:24,055 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:50:24,055 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:50:24,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-25 04:50:24,056 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:50:24,056 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:50:24,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1544541687, now seen corresponding path program 5 times [2023-08-25 04:50:24,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:50:24,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142875237] [2023-08-25 04:50:24,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:50:24,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:50:24,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:50:24,577 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 04:50:24,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:50:24,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142875237] [2023-08-25 04:50:24,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142875237] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:50:24,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:50:24,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-25 04:50:24,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106156902] [2023-08-25 04:50:24,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:50:24,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-25 04:50:24,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:50:24,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-25 04:50:24,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-08-25 04:50:24,580 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 629 [2023-08-25 04:50:24,581 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 232 transitions, 1957 flow. Second operand has 12 states, 12 states have (on average 233.58333333333334) internal successors, (2803), 12 states have internal predecessors, (2803), 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 04:50:24,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:50:24,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 629 [2023-08-25 04:50:24,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:50:37,600 INFO L124 PetriNetUnfolderBase]: 54982/100142 cut-off events. [2023-08-25 04:50:37,601 INFO L125 PetriNetUnfolderBase]: For 120179/120220 co-relation queries the response was YES. [2023-08-25 04:50:38,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 245285 conditions, 100142 events. 54982/100142 cut-off events. For 120179/120220 co-relation queries the response was YES. Maximal size of possible extension queue 1584. Compared 923995 event pairs, 30220 based on Foata normal form. 68/99831 useless extension candidates. Maximal degree in co-relation 245231. Up to 36973 conditions per place. [2023-08-25 04:50:38,950 INFO L140 encePairwiseOnDemand]: 616/629 looper letters, 459 selfloop transitions, 77 changer transitions 0/565 dead transitions. [2023-08-25 04:50:38,950 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 565 transitions, 3999 flow [2023-08-25 04:50:38,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 04:50:38,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 04:50:38,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2957 transitions. [2023-08-25 04:50:38,953 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42737389796213326 [2023-08-25 04:50:38,953 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2957 transitions. [2023-08-25 04:50:38,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2957 transitions. [2023-08-25 04:50:38,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:50:38,953 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2957 transitions. [2023-08-25 04:50:38,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 268.8181818181818) internal successors, (2957), 11 states have internal predecessors, (2957), 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 04:50:38,959 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 629.0) internal successors, (7548), 12 states have internal predecessors, (7548), 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 04:50:38,959 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 629.0) internal successors, (7548), 12 states have internal predecessors, (7548), 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 04:50:38,959 INFO L175 Difference]: Start difference. First operand has 209 places, 232 transitions, 1957 flow. Second operand 11 states and 2957 transitions. [2023-08-25 04:50:38,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 565 transitions, 3999 flow [2023-08-25 04:50:39,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 565 transitions, 3902 flow, removed 23 selfloop flow, removed 3 redundant places. [2023-08-25 04:50:39,428 INFO L231 Difference]: Finished difference. Result has 218 places, 241 transitions, 2151 flow [2023-08-25 04:50:39,429 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=1878, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2151, PETRI_PLACES=218, PETRI_TRANSITIONS=241} [2023-08-25 04:50:39,429 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 90 predicate places. [2023-08-25 04:50:39,429 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 241 transitions, 2151 flow [2023-08-25 04:50:39,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 233.58333333333334) internal successors, (2803), 12 states have internal predecessors, (2803), 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 04:50:39,429 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:50:39,430 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:50:39,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-25 04:50:39,430 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:50:39,430 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:50:39,430 INFO L85 PathProgramCache]: Analyzing trace with hash -912063299, now seen corresponding path program 6 times [2023-08-25 04:50:39,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:50:39,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617213462] [2023-08-25 04:50:39,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:50:39,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:50:39,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:50:39,933 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 04:50:39,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:50:39,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617213462] [2023-08-25 04:50:39,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617213462] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:50:39,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:50:39,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-25 04:50:39,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754588266] [2023-08-25 04:50:39,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:50:39,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-25 04:50:39,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:50:39,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-25 04:50:39,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-08-25 04:50:39,935 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 629 [2023-08-25 04:50:39,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 241 transitions, 2151 flow. Second operand has 13 states, 13 states have (on average 233.30769230769232) internal successors, (3033), 13 states have internal predecessors, (3033), 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 04:50:39,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:50:39,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 629 [2023-08-25 04:50:39,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:50:55,362 INFO L124 PetriNetUnfolderBase]: 64352/116836 cut-off events. [2023-08-25 04:50:55,363 INFO L125 PetriNetUnfolderBase]: For 134641/134688 co-relation queries the response was YES. [2023-08-25 04:50:56,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283601 conditions, 116836 events. 64352/116836 cut-off events. For 134641/134688 co-relation queries the response was YES. Maximal size of possible extension queue 1880. Compared 1100634 event pairs, 32591 based on Foata normal form. 148/116588 useless extension candidates. Maximal degree in co-relation 283545. Up to 37388 conditions per place. [2023-08-25 04:50:57,177 INFO L140 encePairwiseOnDemand]: 616/629 looper letters, 504 selfloop transitions, 92 changer transitions 0/625 dead transitions. [2023-08-25 04:50:57,177 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 625 transitions, 4579 flow [2023-08-25 04:50:57,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 04:50:57,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 04:50:57,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3228 transitions. [2023-08-25 04:50:57,180 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4276629570747218 [2023-08-25 04:50:57,180 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 3228 transitions. [2023-08-25 04:50:57,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 3228 transitions. [2023-08-25 04:50:57,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:50:57,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 3228 transitions. [2023-08-25 04:50:57,183 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 269.0) internal successors, (3228), 12 states have internal predecessors, (3228), 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 04:50:57,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 629.0) internal successors, (8177), 13 states have internal predecessors, (8177), 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 04:50:57,187 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 629.0) internal successors, (8177), 13 states have internal predecessors, (8177), 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 04:50:57,187 INFO L175 Difference]: Start difference. First operand has 218 places, 241 transitions, 2151 flow. Second operand 12 states and 3228 transitions. [2023-08-25 04:50:57,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 625 transitions, 4579 flow [2023-08-25 04:50:58,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 625 transitions, 4438 flow, removed 3 selfloop flow, removed 6 redundant places. [2023-08-25 04:50:58,009 INFO L231 Difference]: Finished difference. Result has 229 places, 259 transitions, 2497 flow [2023-08-25 04:50:58,009 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=2033, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2497, PETRI_PLACES=229, PETRI_TRANSITIONS=259} [2023-08-25 04:50:58,010 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 101 predicate places. [2023-08-25 04:50:58,010 INFO L495 AbstractCegarLoop]: Abstraction has has 229 places, 259 transitions, 2497 flow [2023-08-25 04:50:58,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 233.30769230769232) internal successors, (3033), 13 states have internal predecessors, (3033), 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 04:50:58,010 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:50:58,010 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:50:58,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-25 04:50:58,010 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:50:58,011 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:50:58,011 INFO L85 PathProgramCache]: Analyzing trace with hash 165963709, now seen corresponding path program 7 times [2023-08-25 04:50:58,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:50:58,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388015304] [2023-08-25 04:50:58,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:50:58,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:50:58,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:50:58,947 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 04:50:58,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:50:58,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388015304] [2023-08-25 04:50:58,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388015304] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:50:58,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:50:58,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-25 04:50:58,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754086451] [2023-08-25 04:50:58,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:50:58,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-25 04:50:58,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:50:58,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-25 04:50:58,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-08-25 04:50:58,949 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 629 [2023-08-25 04:50:58,950 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 259 transitions, 2497 flow. Second operand has 13 states, 13 states have (on average 233.30769230769232) internal successors, (3033), 13 states have internal predecessors, (3033), 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 04:50:58,950 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:50:58,950 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 629 [2023-08-25 04:50:58,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:51:15,958 INFO L124 PetriNetUnfolderBase]: 67226/122354 cut-off events. [2023-08-25 04:51:15,959 INFO L125 PetriNetUnfolderBase]: For 164037/164084 co-relation queries the response was YES. [2023-08-25 04:51:17,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 300749 conditions, 122354 events. 67226/122354 cut-off events. For 164037/164084 co-relation queries the response was YES. Maximal size of possible extension queue 1995. Compared 1163176 event pairs, 34426 based on Foata normal form. 140/122045 useless extension candidates. Maximal degree in co-relation 300687. Up to 41821 conditions per place. [2023-08-25 04:51:17,917 INFO L140 encePairwiseOnDemand]: 616/629 looper letters, 525 selfloop transitions, 97 changer transitions 0/651 dead transitions. [2023-08-25 04:51:17,918 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 651 transitions, 4892 flow [2023-08-25 04:51:17,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 04:51:17,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 04:51:17,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3248 transitions. [2023-08-25 04:51:17,921 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4303126656067833 [2023-08-25 04:51:17,922 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 3248 transitions. [2023-08-25 04:51:17,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 3248 transitions. [2023-08-25 04:51:17,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:51:17,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 3248 transitions. [2023-08-25 04:51:17,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 270.6666666666667) internal successors, (3248), 12 states have internal predecessors, (3248), 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 04:51:17,927 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 629.0) internal successors, (8177), 13 states have internal predecessors, (8177), 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 04:51:17,928 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 629.0) internal successors, (8177), 13 states have internal predecessors, (8177), 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 04:51:17,928 INFO L175 Difference]: Start difference. First operand has 229 places, 259 transitions, 2497 flow. Second operand 12 states and 3248 transitions. [2023-08-25 04:51:17,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 651 transitions, 4892 flow [2023-08-25 04:51:18,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 651 transitions, 4762 flow, removed 19 selfloop flow, removed 4 redundant places. [2023-08-25 04:51:18,693 INFO L231 Difference]: Finished difference. Result has 241 places, 271 transitions, 2768 flow [2023-08-25 04:51:18,693 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=2369, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=259, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2768, PETRI_PLACES=241, PETRI_TRANSITIONS=271} [2023-08-25 04:51:18,693 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 113 predicate places. [2023-08-25 04:51:18,693 INFO L495 AbstractCegarLoop]: Abstraction has has 241 places, 271 transitions, 2768 flow [2023-08-25 04:51:18,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 233.30769230769232) internal successors, (3033), 13 states have internal predecessors, (3033), 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 04:51:18,694 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:51:18,694 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:51:18,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-25 04:51:18,694 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:51:18,694 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:51:18,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1493804781, now seen corresponding path program 8 times [2023-08-25 04:51:18,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:51:18,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195001896] [2023-08-25 04:51:18,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:51:18,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:51:18,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:51:19,264 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 04:51:19,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:51:19,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195001896] [2023-08-25 04:51:19,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195001896] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:51:19,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:51:19,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-25 04:51:19,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348519827] [2023-08-25 04:51:19,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:51:19,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-25 04:51:19,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:51:19,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-25 04:51:19,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-08-25 04:51:19,266 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 629 [2023-08-25 04:51:19,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 271 transitions, 2768 flow. Second operand has 12 states, 12 states have (on average 233.58333333333334) internal successors, (2803), 12 states have internal predecessors, (2803), 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 04:51:19,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:51:19,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 629 [2023-08-25 04:51:19,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:51:36,586 INFO L124 PetriNetUnfolderBase]: 68748/124891 cut-off events. [2023-08-25 04:51:36,587 INFO L125 PetriNetUnfolderBase]: For 188118/188188 co-relation queries the response was YES. [2023-08-25 04:51:38,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 311293 conditions, 124891 events. 68748/124891 cut-off events. For 188118/188188 co-relation queries the response was YES. Maximal size of possible extension queue 2060. Compared 1187791 event pairs, 39655 based on Foata normal form. 78/124460 useless extension candidates. Maximal degree in co-relation 311226. Up to 52010 conditions per place. [2023-08-25 04:51:38,820 INFO L140 encePairwiseOnDemand]: 616/629 looper letters, 489 selfloop transitions, 94 changer transitions 0/612 dead transitions. [2023-08-25 04:51:38,820 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 612 transitions, 4887 flow [2023-08-25 04:51:38,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 04:51:38,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 04:51:38,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2972 transitions. [2023-08-25 04:51:38,824 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4295418413065472 [2023-08-25 04:51:38,824 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2972 transitions. [2023-08-25 04:51:38,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2972 transitions. [2023-08-25 04:51:38,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:51:38,825 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2972 transitions. [2023-08-25 04:51:38,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 270.1818181818182) internal successors, (2972), 11 states have internal predecessors, (2972), 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 04:51:38,832 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 629.0) internal successors, (7548), 12 states have internal predecessors, (7548), 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 04:51:38,832 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 629.0) internal successors, (7548), 12 states have internal predecessors, (7548), 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 04:51:38,832 INFO L175 Difference]: Start difference. First operand has 241 places, 271 transitions, 2768 flow. Second operand 11 states and 2972 transitions. [2023-08-25 04:51:38,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 612 transitions, 4887 flow [2023-08-25 04:51:39,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 612 transitions, 4734 flow, removed 34 selfloop flow, removed 3 redundant places. [2023-08-25 04:51:39,884 INFO L231 Difference]: Finished difference. Result has 250 places, 276 transitions, 2899 flow [2023-08-25 04:51:39,884 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=2620, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2899, PETRI_PLACES=250, PETRI_TRANSITIONS=276} [2023-08-25 04:51:39,884 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 122 predicate places. [2023-08-25 04:51:39,884 INFO L495 AbstractCegarLoop]: Abstraction has has 250 places, 276 transitions, 2899 flow [2023-08-25 04:51:39,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 233.58333333333334) internal successors, (2803), 12 states have internal predecessors, (2803), 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 04:51:39,885 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:51:39,885 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:51:39,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-25 04:51:39,885 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:51:39,885 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:51:39,885 INFO L85 PathProgramCache]: Analyzing trace with hash 184104461, now seen corresponding path program 9 times [2023-08-25 04:51:39,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:51:39,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438768229] [2023-08-25 04:51:39,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:51:39,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:51:39,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:51:40,341 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 04:51:40,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:51:40,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438768229] [2023-08-25 04:51:40,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438768229] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:51:40,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:51:40,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-25 04:51:40,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759418287] [2023-08-25 04:51:40,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:51:40,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-25 04:51:40,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:51:40,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-25 04:51:40,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-08-25 04:51:40,344 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 629 [2023-08-25 04:51:40,345 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 276 transitions, 2899 flow. Second operand has 12 states, 12 states have (on average 233.58333333333334) internal successors, (2803), 12 states have internal predecessors, (2803), 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 04:51:40,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:51:40,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 629 [2023-08-25 04:51:40,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:52:00,257 INFO L124 PetriNetUnfolderBase]: 71814/130643 cut-off events. [2023-08-25 04:52:00,257 INFO L125 PetriNetUnfolderBase]: For 202352/202414 co-relation queries the response was YES. [2023-08-25 04:52:02,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 324758 conditions, 130643 events. 71814/130643 cut-off events. For 202352/202414 co-relation queries the response was YES. Maximal size of possible extension queue 2174. Compared 1252680 event pairs, 40535 based on Foata normal form. 148/130268 useless extension candidates. Maximal degree in co-relation 324689. Up to 52276 conditions per place. [2023-08-25 04:52:02,830 INFO L140 encePairwiseOnDemand]: 616/629 looper letters, 492 selfloop transitions, 96 changer transitions 0/617 dead transitions. [2023-08-25 04:52:02,831 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 617 transitions, 4989 flow [2023-08-25 04:52:02,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 04:52:02,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 04:52:02,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2974 transitions. [2023-08-25 04:52:02,833 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4298309004191357 [2023-08-25 04:52:02,833 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2974 transitions. [2023-08-25 04:52:02,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2974 transitions. [2023-08-25 04:52:02,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:52:02,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2974 transitions. [2023-08-25 04:52:02,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 270.3636363636364) internal successors, (2974), 11 states have internal predecessors, (2974), 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 04:52:02,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 629.0) internal successors, (7548), 12 states have internal predecessors, (7548), 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 04:52:02,840 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 629.0) internal successors, (7548), 12 states have internal predecessors, (7548), 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 04:52:02,840 INFO L175 Difference]: Start difference. First operand has 250 places, 276 transitions, 2899 flow. Second operand 11 states and 2974 transitions. [2023-08-25 04:52:02,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 617 transitions, 4989 flow [2023-08-25 04:52:03,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 617 transitions, 4847 flow, removed 1 selfloop flow, removed 6 redundant places. [2023-08-25 04:52:03,727 INFO L231 Difference]: Finished difference. Result has 256 places, 279 transitions, 3001 flow [2023-08-25 04:52:03,727 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=2759, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3001, PETRI_PLACES=256, PETRI_TRANSITIONS=279} [2023-08-25 04:52:03,728 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 128 predicate places. [2023-08-25 04:52:03,728 INFO L495 AbstractCegarLoop]: Abstraction has has 256 places, 279 transitions, 3001 flow [2023-08-25 04:52:03,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 233.58333333333334) internal successors, (2803), 12 states have internal predecessors, (2803), 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 04:52:03,728 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:52:03,729 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:52:03,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-25 04:52:03,729 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:52:03,729 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:52:03,729 INFO L85 PathProgramCache]: Analyzing trace with hash -893848305, now seen corresponding path program 10 times [2023-08-25 04:52:03,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:52:03,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74723911] [2023-08-25 04:52:03,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:52:03,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:52:03,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:52:04,309 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 04:52:04,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:52:04,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74723911] [2023-08-25 04:52:04,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74723911] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:52:04,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:52:04,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-25 04:52:04,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812187773] [2023-08-25 04:52:04,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:52:04,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-25 04:52:04,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:52:04,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-25 04:52:04,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-08-25 04:52:04,311 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 629 [2023-08-25 04:52:04,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 279 transitions, 3001 flow. Second operand has 12 states, 12 states have (on average 233.58333333333334) internal successors, (2803), 12 states have internal predecessors, (2803), 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 04:52:04,312 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:52:04,313 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 629 [2023-08-25 04:52:04,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:52:23,839 INFO L124 PetriNetUnfolderBase]: 71688/130562 cut-off events. [2023-08-25 04:52:23,839 INFO L125 PetriNetUnfolderBase]: For 213268/213331 co-relation queries the response was YES. [2023-08-25 04:52:26,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 325390 conditions, 130562 events. 71688/130562 cut-off events. For 213268/213331 co-relation queries the response was YES. Maximal size of possible extension queue 2174. Compared 1252957 event pairs, 40825 based on Foata normal form. 148/130206 useless extension candidates. Maximal degree in co-relation 325319. Up to 52160 conditions per place. [2023-08-25 04:52:26,504 INFO L140 encePairwiseOnDemand]: 616/629 looper letters, 477 selfloop transitions, 96 changer transitions 0/602 dead transitions. [2023-08-25 04:52:26,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 602 transitions, 4976 flow [2023-08-25 04:52:26,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 04:52:26,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 04:52:26,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2959 transitions. [2023-08-25 04:52:26,507 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4276629570747218 [2023-08-25 04:52:26,507 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2959 transitions. [2023-08-25 04:52:26,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2959 transitions. [2023-08-25 04:52:26,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:52:26,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2959 transitions. [2023-08-25 04:52:26,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 269.0) internal successors, (2959), 11 states have internal predecessors, (2959), 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 04:52:26,513 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 629.0) internal successors, (7548), 12 states have internal predecessors, (7548), 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 04:52:26,513 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 629.0) internal successors, (7548), 12 states have internal predecessors, (7548), 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 04:52:26,513 INFO L175 Difference]: Start difference. First operand has 256 places, 279 transitions, 3001 flow. Second operand 11 states and 2959 transitions. [2023-08-25 04:52:26,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 602 transitions, 4976 flow [2023-08-25 04:52:27,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 602 transitions, 4840 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-08-25 04:52:27,508 INFO L231 Difference]: Finished difference. Result has 259 places, 277 transitions, 3037 flow [2023-08-25 04:52:27,508 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=2845, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=277, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3037, PETRI_PLACES=259, PETRI_TRANSITIONS=277} [2023-08-25 04:52:27,508 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 131 predicate places. [2023-08-25 04:52:27,508 INFO L495 AbstractCegarLoop]: Abstraction has has 259 places, 277 transitions, 3037 flow [2023-08-25 04:52:27,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 233.58333333333334) internal successors, (2803), 12 states have internal predecessors, (2803), 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 04:52:27,509 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:52:27,509 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:52:27,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-25 04:52:27,509 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:52:27,509 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:52:27,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1180609835, now seen corresponding path program 11 times [2023-08-25 04:52:27,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:52:27,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864430059] [2023-08-25 04:52:27,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:52:27,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:52:27,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:52:28,121 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 04:52:28,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:52:28,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864430059] [2023-08-25 04:52:28,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864430059] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:52:28,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:52:28,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-25 04:52:28,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19277477] [2023-08-25 04:52:28,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:52:28,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-25 04:52:28,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:52:28,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-25 04:52:28,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-08-25 04:52:28,123 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 629 [2023-08-25 04:52:28,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 277 transitions, 3037 flow. Second operand has 12 states, 12 states have (on average 233.58333333333334) internal successors, (2803), 12 states have internal predecessors, (2803), 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 04:52:28,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:52:28,125 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 629 [2023-08-25 04:52:28,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:52:47,695 INFO L124 PetriNetUnfolderBase]: 71494/130425 cut-off events. [2023-08-25 04:52:47,695 INFO L125 PetriNetUnfolderBase]: For 215181/215219 co-relation queries the response was YES. [2023-08-25 04:52:49,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 325658 conditions, 130425 events. 71494/130425 cut-off events. For 215181/215219 co-relation queries the response was YES. Maximal size of possible extension queue 2175. Compared 1253322 event pairs, 41656 based on Foata normal form. 140/130007 useless extension candidates. Maximal degree in co-relation 325587. Up to 51977 conditions per place. [2023-08-25 04:52:50,054 INFO L140 encePairwiseOnDemand]: 616/629 looper letters, 461 selfloop transitions, 93 changer transitions 0/583 dead transitions. [2023-08-25 04:52:50,054 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 583 transitions, 4983 flow [2023-08-25 04:52:50,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 04:52:50,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 04:52:50,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2938 transitions. [2023-08-25 04:52:50,057 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42462783639254226 [2023-08-25 04:52:50,057 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2938 transitions. [2023-08-25 04:52:50,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2938 transitions. [2023-08-25 04:52:50,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:52:50,057 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2938 transitions. [2023-08-25 04:52:50,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 267.09090909090907) internal successors, (2938), 11 states have internal predecessors, (2938), 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 04:52:50,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 629.0) internal successors, (7548), 12 states have internal predecessors, (7548), 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 04:52:50,063 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 629.0) internal successors, (7548), 12 states have internal predecessors, (7548), 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 04:52:50,063 INFO L175 Difference]: Start difference. First operand has 259 places, 277 transitions, 3037 flow. Second operand 11 states and 2938 transitions. [2023-08-25 04:52:50,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 583 transitions, 4983 flow [2023-08-25 04:52:51,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 583 transitions, 4836 flow, removed 2 selfloop flow, removed 9 redundant places. [2023-08-25 04:52:51,389 INFO L231 Difference]: Finished difference. Result has 261 places, 276 transitions, 3080 flow [2023-08-25 04:52:51,390 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=2876, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3080, PETRI_PLACES=261, PETRI_TRANSITIONS=276} [2023-08-25 04:52:51,390 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 133 predicate places. [2023-08-25 04:52:51,390 INFO L495 AbstractCegarLoop]: Abstraction has has 261 places, 276 transitions, 3080 flow [2023-08-25 04:52:51,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 233.58333333333334) internal successors, (2803), 12 states have internal predecessors, (2803), 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 04:52:51,390 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:52:51,390 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:52:51,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-08-25 04:52:51,391 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:52:51,391 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:52:51,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1266767859, now seen corresponding path program 12 times [2023-08-25 04:52:51,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:52:51,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424631369] [2023-08-25 04:52:51,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:52:51,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:52:51,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:52:51,830 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 04:52:51,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:52:51,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424631369] [2023-08-25 04:52:51,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424631369] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:52:51,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:52:51,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-25 04:52:51,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298068780] [2023-08-25 04:52:51,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:52:51,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-25 04:52:51,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:52:51,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-25 04:52:51,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-08-25 04:52:51,833 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 629 [2023-08-25 04:52:51,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 276 transitions, 3080 flow. Second operand has 12 states, 12 states have (on average 233.58333333333334) internal successors, (2803), 12 states have internal predecessors, (2803), 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 04:52:51,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:52:51,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 629 [2023-08-25 04:52:51,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:11,151 INFO L124 PetriNetUnfolderBase]: 71438/130261 cut-off events. [2023-08-25 04:53:11,152 INFO L125 PetriNetUnfolderBase]: For 222972/223014 co-relation queries the response was YES. [2023-08-25 04:53:13,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 325537 conditions, 130261 events. 71438/130261 cut-off events. For 222972/223014 co-relation queries the response was YES. Maximal size of possible extension queue 2178. Compared 1250659 event pairs, 43370 based on Foata normal form. 68/129759 useless extension candidates. Maximal degree in co-relation 325467. Up to 56361 conditions per place. [2023-08-25 04:53:13,527 INFO L140 encePairwiseOnDemand]: 616/629 looper letters, 459 selfloop transitions, 91 changer transitions 0/579 dead transitions. [2023-08-25 04:53:13,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 579 transitions, 4993 flow [2023-08-25 04:53:13,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 04:53:13,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 04:53:13,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2936 transitions. [2023-08-25 04:53:13,530 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4243387772799537 [2023-08-25 04:53:13,530 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2936 transitions. [2023-08-25 04:53:13,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2936 transitions. [2023-08-25 04:53:13,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:13,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2936 transitions. [2023-08-25 04:53:13,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 266.90909090909093) internal successors, (2936), 11 states have internal predecessors, (2936), 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 04:53:13,536 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 629.0) internal successors, (7548), 12 states have internal predecessors, (7548), 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 04:53:13,537 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 629.0) internal successors, (7548), 12 states have internal predecessors, (7548), 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 04:53:13,537 INFO L175 Difference]: Start difference. First operand has 261 places, 276 transitions, 3080 flow. Second operand 11 states and 2936 transitions. [2023-08-25 04:53:13,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 579 transitions, 4993 flow [2023-08-25 04:53:14,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 265 places, 579 transitions, 4864 flow, removed 1 selfloop flow, removed 6 redundant places. [2023-08-25 04:53:14,587 INFO L231 Difference]: Finished difference. Result has 265 places, 274 transitions, 3106 flow [2023-08-25 04:53:14,587 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=2924, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3106, PETRI_PLACES=265, PETRI_TRANSITIONS=274} [2023-08-25 04:53:14,587 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 137 predicate places. [2023-08-25 04:53:14,587 INFO L495 AbstractCegarLoop]: Abstraction has has 265 places, 274 transitions, 3106 flow [2023-08-25 04:53:14,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 233.58333333333334) internal successors, (2803), 12 states have internal predecessors, (2803), 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 04:53:14,588 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:14,588 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:14,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-08-25 04:53:14,588 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:53:14,588 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:14,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1134524297, now seen corresponding path program 13 times [2023-08-25 04:53:14,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:14,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273762517] [2023-08-25 04:53:14,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:14,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:14,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:15,110 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 04:53:15,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:15,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273762517] [2023-08-25 04:53:15,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273762517] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:15,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:15,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-25 04:53:15,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668857538] [2023-08-25 04:53:15,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:15,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-25 04:53:15,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:15,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-25 04:53:15,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-08-25 04:53:15,113 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 629 [2023-08-25 04:53:15,114 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 274 transitions, 3106 flow. Second operand has 12 states, 12 states have (on average 233.58333333333334) internal successors, (2803), 12 states have internal predecessors, (2803), 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 04:53:15,114 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:15,114 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 629 [2023-08-25 04:53:15,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:53:35,198 INFO L124 PetriNetUnfolderBase]: 77532/140879 cut-off events. [2023-08-25 04:53:35,198 INFO L125 PetriNetUnfolderBase]: For 242910/242979 co-relation queries the response was YES. [2023-08-25 04:53:37,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 353264 conditions, 140879 events. 77532/140879 cut-off events. For 242910/242979 co-relation queries the response was YES. Maximal size of possible extension queue 2317. Compared 1365249 event pairs, 43458 based on Foata normal form. 90/140430 useless extension candidates. Maximal degree in co-relation 353194. Up to 56363 conditions per place. [2023-08-25 04:53:37,795 INFO L140 encePairwiseOnDemand]: 616/629 looper letters, 510 selfloop transitions, 114 changer transitions 0/653 dead transitions. [2023-08-25 04:53:37,796 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 653 transitions, 5738 flow [2023-08-25 04:53:37,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 04:53:37,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 04:53:37,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3214 transitions. [2023-08-25 04:53:37,798 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42580816110227876 [2023-08-25 04:53:37,798 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 3214 transitions. [2023-08-25 04:53:37,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 3214 transitions. [2023-08-25 04:53:37,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:53:37,799 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 3214 transitions. [2023-08-25 04:53:37,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 267.8333333333333) internal successors, (3214), 12 states have internal predecessors, (3214), 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 04:53:37,804 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 629.0) internal successors, (8177), 13 states have internal predecessors, (8177), 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 04:53:37,804 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 629.0) internal successors, (8177), 13 states have internal predecessors, (8177), 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 04:53:37,804 INFO L175 Difference]: Start difference. First operand has 265 places, 274 transitions, 3106 flow. Second operand 12 states and 3214 transitions. [2023-08-25 04:53:37,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 653 transitions, 5738 flow [2023-08-25 04:53:39,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 653 transitions, 5538 flow, removed 2 selfloop flow, removed 9 redundant places. [2023-08-25 04:53:39,419 INFO L231 Difference]: Finished difference. Result has 273 places, 295 transitions, 3590 flow [2023-08-25 04:53:39,419 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=2934, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3590, PETRI_PLACES=273, PETRI_TRANSITIONS=295} [2023-08-25 04:53:39,419 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 145 predicate places. [2023-08-25 04:53:39,419 INFO L495 AbstractCegarLoop]: Abstraction has has 273 places, 295 transitions, 3590 flow [2023-08-25 04:53:39,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 233.58333333333334) internal successors, (2803), 12 states have internal predecessors, (2803), 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 04:53:39,420 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:53:39,420 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:53:39,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-08-25 04:53:39,420 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:53:39,420 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:53:39,420 INFO L85 PathProgramCache]: Analyzing trace with hash 172893477, now seen corresponding path program 14 times [2023-08-25 04:53:39,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:53:39,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337913614] [2023-08-25 04:53:39,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:53:39,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:53:39,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:53:39,855 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 04:53:39,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:53:39,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337913614] [2023-08-25 04:53:39,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337913614] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:53:39,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:53:39,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-25 04:53:39,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477717036] [2023-08-25 04:53:39,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:53:39,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-25 04:53:39,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:53:39,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-25 04:53:39,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-08-25 04:53:39,858 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 629 [2023-08-25 04:53:39,859 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 295 transitions, 3590 flow. Second operand has 13 states, 13 states have (on average 233.30769230769232) internal successors, (3033), 13 states have internal predecessors, (3033), 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 04:53:39,859 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:53:39,859 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 629 [2023-08-25 04:53:39,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:54:01,503 INFO L124 PetriNetUnfolderBase]: 81087/147206 cut-off events. [2023-08-25 04:54:01,504 INFO L125 PetriNetUnfolderBase]: For 278001/278090 co-relation queries the response was YES. [2023-08-25 04:54:03,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 373474 conditions, 147206 events. 81087/147206 cut-off events. For 278001/278090 co-relation queries the response was YES. Maximal size of possible extension queue 2451. Compared 1433719 event pairs, 46617 based on Foata normal form. 82/146748 useless extension candidates. Maximal degree in co-relation 373400. Up to 56438 conditions per place. [2023-08-25 04:54:04,545 INFO L140 encePairwiseOnDemand]: 616/629 looper letters, 530 selfloop transitions, 114 changer transitions 0/673 dead transitions. [2023-08-25 04:54:04,545 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 673 transitions, 6094 flow [2023-08-25 04:54:04,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 04:54:04,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 04:54:04,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3228 transitions. [2023-08-25 04:54:04,558 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4276629570747218 [2023-08-25 04:54:04,558 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 3228 transitions. [2023-08-25 04:54:04,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 3228 transitions. [2023-08-25 04:54:04,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:54:04,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 3228 transitions. [2023-08-25 04:54:04,561 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 269.0) internal successors, (3228), 12 states have internal predecessors, (3228), 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 04:54:04,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 629.0) internal successors, (8177), 13 states have internal predecessors, (8177), 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 04:54:04,565 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 629.0) internal successors, (8177), 13 states have internal predecessors, (8177), 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 04:54:04,565 INFO L175 Difference]: Start difference. First operand has 273 places, 295 transitions, 3590 flow. Second operand 12 states and 3228 transitions. [2023-08-25 04:54:04,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 673 transitions, 6094 flow [2023-08-25 04:54:06,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 673 transitions, 5963 flow, removed 21 selfloop flow, removed 4 redundant places. [2023-08-25 04:54:06,472 INFO L231 Difference]: Finished difference. Result has 285 places, 308 transitions, 3977 flow [2023-08-25 04:54:06,472 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=3461, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3977, PETRI_PLACES=285, PETRI_TRANSITIONS=308} [2023-08-25 04:54:06,474 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 157 predicate places. [2023-08-25 04:54:06,474 INFO L495 AbstractCegarLoop]: Abstraction has has 285 places, 308 transitions, 3977 flow [2023-08-25 04:54:06,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 233.30769230769232) internal successors, (3033), 13 states have internal predecessors, (3033), 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 04:54:06,474 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:54:06,474 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:54:06,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-08-25 04:54:06,475 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:54:06,475 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:54:06,475 INFO L85 PathProgramCache]: Analyzing trace with hash 475731331, now seen corresponding path program 15 times [2023-08-25 04:54:06,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:54:06,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638029770] [2023-08-25 04:54:06,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:54:06,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:54:06,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:54:07,425 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 04:54:07,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:54:07,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638029770] [2023-08-25 04:54:07,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638029770] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:54:07,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:54:07,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-25 04:54:07,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438548386] [2023-08-25 04:54:07,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:54:07,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-25 04:54:07,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:54:07,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-25 04:54:07,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-08-25 04:54:07,428 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 629 [2023-08-25 04:54:07,429 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 308 transitions, 3977 flow. Second operand has 12 states, 12 states have (on average 233.58333333333334) internal successors, (2803), 12 states have internal predecessors, (2803), 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 04:54:07,429 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:54:07,429 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 629 [2023-08-25 04:54:07,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:54:31,693 INFO L124 PetriNetUnfolderBase]: 85720/155724 cut-off events. [2023-08-25 04:54:31,693 INFO L125 PetriNetUnfolderBase]: For 320244/320329 co-relation queries the response was YES. [2023-08-25 04:54:34,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 398727 conditions, 155724 events. 85720/155724 cut-off events. For 320244/320329 co-relation queries the response was YES. Maximal size of possible extension queue 2625. Compared 1530057 event pairs, 48738 based on Foata normal form. 160/155317 useless extension candidates. Maximal degree in co-relation 398648. Up to 56477 conditions per place. [2023-08-25 04:54:34,820 INFO L140 encePairwiseOnDemand]: 616/629 looper letters, 480 selfloop transitions, 114 changer transitions 0/623 dead transitions. [2023-08-25 04:54:34,820 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 623 transitions, 6126 flow [2023-08-25 04:54:34,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 04:54:34,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 04:54:34,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2936 transitions. [2023-08-25 04:54:34,822 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4243387772799537 [2023-08-25 04:54:34,822 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2936 transitions. [2023-08-25 04:54:34,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2936 transitions. [2023-08-25 04:54:34,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:54:34,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2936 transitions. [2023-08-25 04:54:34,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 266.90909090909093) internal successors, (2936), 11 states have internal predecessors, (2936), 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 04:54:34,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 629.0) internal successors, (7548), 12 states have internal predecessors, (7548), 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 04:54:34,827 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 629.0) internal successors, (7548), 12 states have internal predecessors, (7548), 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 04:54:34,827 INFO L175 Difference]: Start difference. First operand has 285 places, 308 transitions, 3977 flow. Second operand 11 states and 2936 transitions. [2023-08-25 04:54:34,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 623 transitions, 6126 flow [2023-08-25 04:54:36,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 623 transitions, 5960 flow, removed 45 selfloop flow, removed 3 redundant places. [2023-08-25 04:54:36,716 INFO L231 Difference]: Finished difference. Result has 294 places, 316 transitions, 4194 flow [2023-08-25 04:54:36,716 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=3830, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=308, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=106, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4194, PETRI_PLACES=294, PETRI_TRANSITIONS=316} [2023-08-25 04:54:36,717 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 166 predicate places. [2023-08-25 04:54:36,717 INFO L495 AbstractCegarLoop]: Abstraction has has 294 places, 316 transitions, 4194 flow [2023-08-25 04:54:36,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 233.58333333333334) internal successors, (2803), 12 states have internal predecessors, (2803), 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 04:54:36,717 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:54:36,717 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:54:36,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-08-25 04:54:36,718 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:54:36,718 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:54:36,718 INFO L85 PathProgramCache]: Analyzing trace with hash -616462089, now seen corresponding path program 16 times [2023-08-25 04:54:36,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:54:36,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331929565] [2023-08-25 04:54:36,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:54:36,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:54:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:54:37,245 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 04:54:37,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:54:37,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331929565] [2023-08-25 04:54:37,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331929565] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:54:37,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:54:37,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-25 04:54:37,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871182309] [2023-08-25 04:54:37,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:54:37,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-25 04:54:37,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:54:37,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-25 04:54:37,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-08-25 04:54:37,248 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 629 [2023-08-25 04:54:37,249 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 316 transitions, 4194 flow. Second operand has 12 states, 12 states have (on average 233.58333333333334) internal successors, (2803), 12 states have internal predecessors, (2803), 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 04:54:37,249 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:54:37,249 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 629 [2023-08-25 04:54:37,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:55:03,704 INFO L124 PetriNetUnfolderBase]: 88660/161258 cut-off events. [2023-08-25 04:55:03,704 INFO L125 PetriNetUnfolderBase]: For 344541/344622 co-relation queries the response was YES. [2023-08-25 04:55:06,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 413659 conditions, 161258 events. 88660/161258 cut-off events. For 344541/344622 co-relation queries the response was YES. Maximal size of possible extension queue 2742. Compared 1595016 event pairs, 50906 based on Foata normal form. 160/160817 useless extension candidates. Maximal degree in co-relation 413578. Up to 60977 conditions per place. [2023-08-25 04:55:07,047 INFO L140 encePairwiseOnDemand]: 616/629 looper letters, 499 selfloop transitions, 117 changer transitions 0/645 dead transitions. [2023-08-25 04:55:07,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 645 transitions, 6348 flow [2023-08-25 04:55:07,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 04:55:07,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 04:55:07,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2956 transitions. [2023-08-25 04:55:07,050 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42722936840583897 [2023-08-25 04:55:07,050 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2956 transitions. [2023-08-25 04:55:07,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2956 transitions. [2023-08-25 04:55:07,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:55:07,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2956 transitions. [2023-08-25 04:55:07,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 268.72727272727275) internal successors, (2956), 11 states have internal predecessors, (2956), 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 04:55:07,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 629.0) internal successors, (7548), 12 states have internal predecessors, (7548), 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 04:55:07,055 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 629.0) internal successors, (7548), 12 states have internal predecessors, (7548), 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 04:55:07,055 INFO L175 Difference]: Start difference. First operand has 294 places, 316 transitions, 4194 flow. Second operand 11 states and 2956 transitions. [2023-08-25 04:55:07,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 645 transitions, 6348 flow [2023-08-25 04:55:08,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 645 transitions, 6169 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-25 04:55:08,826 INFO L231 Difference]: Finished difference. Result has 300 places, 320 transitions, 4326 flow [2023-08-25 04:55:08,826 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=4019, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=316, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=113, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4326, PETRI_PLACES=300, PETRI_TRANSITIONS=320} [2023-08-25 04:55:08,826 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 172 predicate places. [2023-08-25 04:55:08,827 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 320 transitions, 4326 flow [2023-08-25 04:55:08,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 233.58333333333334) internal successors, (2803), 12 states have internal predecessors, (2803), 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 04:55:08,827 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:55:08,827 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:55:08,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-08-25 04:55:08,827 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:55:08,827 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:55:08,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1904784575, now seen corresponding path program 17 times [2023-08-25 04:55:08,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:55:08,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715343229] [2023-08-25 04:55:08,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:55:08,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:55:08,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:55:09,376 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 04:55:09,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:55:09,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715343229] [2023-08-25 04:55:09,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715343229] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:55:09,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:55:09,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-25 04:55:09,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486647626] [2023-08-25 04:55:09,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:55:09,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-25 04:55:09,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:55:09,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-25 04:55:09,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-08-25 04:55:09,378 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 629 [2023-08-25 04:55:09,379 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 320 transitions, 4326 flow. Second operand has 12 states, 12 states have (on average 233.58333333333334) internal successors, (2803), 12 states have internal predecessors, (2803), 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 04:55:09,379 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:55:09,379 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 629 [2023-08-25 04:55:09,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:55:34,720 INFO L124 PetriNetUnfolderBase]: 90244/164030 cut-off events. [2023-08-25 04:55:34,720 INFO L125 PetriNetUnfolderBase]: For 371249/371330 co-relation queries the response was YES. [2023-08-25 04:55:37,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 422367 conditions, 164030 events. 90244/164030 cut-off events. For 371249/371330 co-relation queries the response was YES. Maximal size of possible extension queue 2796. Compared 1625518 event pairs, 53426 based on Foata normal form. 88/163483 useless extension candidates. Maximal degree in co-relation 422284. Up to 65361 conditions per place. [2023-08-25 04:55:38,241 INFO L140 encePairwiseOnDemand]: 616/629 looper letters, 498 selfloop transitions, 120 changer transitions 0/647 dead transitions. [2023-08-25 04:55:38,241 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 647 transitions, 6504 flow [2023-08-25 04:55:38,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 04:55:38,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 04:55:38,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2954 transitions. [2023-08-25 04:55:38,244 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4269403092932505 [2023-08-25 04:55:38,244 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2954 transitions. [2023-08-25 04:55:38,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2954 transitions. [2023-08-25 04:55:38,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:55:38,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2954 transitions. [2023-08-25 04:55:38,246 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 268.54545454545456) internal successors, (2954), 11 states have internal predecessors, (2954), 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 04:55:38,248 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 629.0) internal successors, (7548), 12 states have internal predecessors, (7548), 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 04:55:38,249 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 629.0) internal successors, (7548), 12 states have internal predecessors, (7548), 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 04:55:38,249 INFO L175 Difference]: Start difference. First operand has 300 places, 320 transitions, 4326 flow. Second operand 11 states and 2954 transitions. [2023-08-25 04:55:38,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 647 transitions, 6504 flow [2023-08-25 04:55:40,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 647 transitions, 6319 flow, removed 1 selfloop flow, removed 6 redundant places. [2023-08-25 04:55:40,187 INFO L231 Difference]: Finished difference. Result has 306 places, 324 transitions, 4480 flow [2023-08-25 04:55:40,187 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=4145, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=116, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4480, PETRI_PLACES=306, PETRI_TRANSITIONS=324} [2023-08-25 04:55:40,188 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 178 predicate places. [2023-08-25 04:55:40,188 INFO L495 AbstractCegarLoop]: Abstraction has has 306 places, 324 transitions, 4480 flow [2023-08-25 04:55:40,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 233.58333333333334) internal successors, (2803), 12 states have internal predecessors, (2803), 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 04:55:40,188 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:55:40,188 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:55:40,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-08-25 04:55:40,189 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:55:40,189 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:55:40,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1439914847, now seen corresponding path program 18 times [2023-08-25 04:55:40,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:55:40,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265407025] [2023-08-25 04:55:40,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:55:40,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:55:40,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:55:40,611 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 04:55:40,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:55:40,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265407025] [2023-08-25 04:55:40,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265407025] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:55:40,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:55:40,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-25 04:55:40,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675975465] [2023-08-25 04:55:40,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:55:40,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-25 04:55:40,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:55:40,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-25 04:55:40,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-08-25 04:55:40,615 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 629 [2023-08-25 04:55:40,616 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 324 transitions, 4480 flow. Second operand has 12 states, 12 states have (on average 233.58333333333334) internal successors, (2803), 12 states have internal predecessors, (2803), 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 04:55:40,616 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:55:40,616 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 629 [2023-08-25 04:55:40,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:56:07,221 INFO L124 PetriNetUnfolderBase]: 90254/163898 cut-off events. [2023-08-25 04:56:07,221 INFO L125 PetriNetUnfolderBase]: For 389738/389823 co-relation queries the response was YES. [2023-08-25 04:56:10,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 422783 conditions, 163898 events. 90254/163898 cut-off events. For 389738/389823 co-relation queries the response was YES. Maximal size of possible extension queue 2795. Compared 1622119 event pairs, 54011 based on Foata normal form. 88/163366 useless extension candidates. Maximal degree in co-relation 422698. Up to 65428 conditions per place. [2023-08-25 04:56:10,767 INFO L140 encePairwiseOnDemand]: 616/629 looper letters, 478 selfloop transitions, 120 changer transitions 0/627 dead transitions. [2023-08-25 04:56:10,768 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 627 transitions, 6469 flow [2023-08-25 04:56:10,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 04:56:10,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 04:56:10,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2934 transitions. [2023-08-25 04:56:10,770 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42404971816736525 [2023-08-25 04:56:10,770 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2934 transitions. [2023-08-25 04:56:10,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2934 transitions. [2023-08-25 04:56:10,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:56:10,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2934 transitions. [2023-08-25 04:56:10,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 266.72727272727275) internal successors, (2934), 11 states have internal predecessors, (2934), 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 04:56:10,775 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 629.0) internal successors, (7548), 12 states have internal predecessors, (7548), 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 04:56:10,775 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 629.0) internal successors, (7548), 12 states have internal predecessors, (7548), 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 04:56:10,775 INFO L175 Difference]: Start difference. First operand has 306 places, 324 transitions, 4480 flow. Second operand 11 states and 2934 transitions. [2023-08-25 04:56:10,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 627 transitions, 6469 flow [2023-08-25 04:56:12,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 627 transitions, 6316 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-08-25 04:56:12,664 INFO L231 Difference]: Finished difference. Result has 309 places, 322 transitions, 4538 flow [2023-08-25 04:56:12,664 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=4298, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=322, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=120, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4538, PETRI_PLACES=309, PETRI_TRANSITIONS=322} [2023-08-25 04:56:12,665 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 181 predicate places. [2023-08-25 04:56:12,665 INFO L495 AbstractCegarLoop]: Abstraction has has 309 places, 322 transitions, 4538 flow [2023-08-25 04:56:12,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 233.58333333333334) internal successors, (2803), 12 states have internal predecessors, (2803), 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 04:56:12,665 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:56:12,665 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:56:12,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-08-25 04:56:12,666 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:56:12,666 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:56:12,666 INFO L85 PathProgramCache]: Analyzing trace with hash -341976063, now seen corresponding path program 19 times [2023-08-25 04:56:12,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:56:12,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306051635] [2023-08-25 04:56:12,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:56:12,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:56:12,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:56:13,112 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 04:56:13,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:56:13,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306051635] [2023-08-25 04:56:13,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306051635] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:56:13,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:56:13,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-25 04:56:13,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184115181] [2023-08-25 04:56:13,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:56:13,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-25 04:56:13,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:56:13,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-25 04:56:13,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-08-25 04:56:13,115 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 629 [2023-08-25 04:56:13,116 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 322 transitions, 4538 flow. Second operand has 12 states, 12 states have (on average 233.58333333333334) internal successors, (2803), 12 states have internal predecessors, (2803), 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 04:56:13,116 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:56:13,116 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 629 [2023-08-25 04:56:13,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:56:38,898 INFO L124 PetriNetUnfolderBase]: 90132/163546 cut-off events. [2023-08-25 04:56:38,898 INFO L125 PetriNetUnfolderBase]: For 391757/391848 co-relation queries the response was YES. [2023-08-25 04:56:41,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 423512 conditions, 163546 events. 90132/163546 cut-off events. For 391757/391848 co-relation queries the response was YES. Maximal size of possible extension queue 2771. Compared 1617036 event pairs, 53668 based on Foata normal form. 80/163005 useless extension candidates. Maximal degree in co-relation 423427. Up to 65361 conditions per place. [2023-08-25 04:56:42,421 INFO L140 encePairwiseOnDemand]: 616/629 looper letters, 467 selfloop transitions, 121 changer transitions 0/617 dead transitions. [2023-08-25 04:56:42,421 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 617 transitions, 6532 flow [2023-08-25 04:56:42,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 04:56:42,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 04:56:42,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2921 transitions. [2023-08-25 04:56:42,423 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42217083393553984 [2023-08-25 04:56:42,423 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2921 transitions. [2023-08-25 04:56:42,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2921 transitions. [2023-08-25 04:56:42,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:56:42,424 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2921 transitions. [2023-08-25 04:56:42,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 265.54545454545456) internal successors, (2921), 11 states have internal predecessors, (2921), 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 04:56:42,428 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 629.0) internal successors, (7548), 12 states have internal predecessors, (7548), 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 04:56:42,428 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 629.0) internal successors, (7548), 12 states have internal predecessors, (7548), 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 04:56:42,428 INFO L175 Difference]: Start difference. First operand has 309 places, 322 transitions, 4538 flow. Second operand 11 states and 2921 transitions. [2023-08-25 04:56:42,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 617 transitions, 6532 flow [2023-08-25 04:56:44,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 617 transitions, 6366 flow, removed 2 selfloop flow, removed 9 redundant places. [2023-08-25 04:56:44,737 INFO L231 Difference]: Finished difference. Result has 311 places, 321 transitions, 4611 flow [2023-08-25 04:56:44,737 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=4349, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=120, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4611, PETRI_PLACES=311, PETRI_TRANSITIONS=321} [2023-08-25 04:56:44,738 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 183 predicate places. [2023-08-25 04:56:44,738 INFO L495 AbstractCegarLoop]: Abstraction has has 311 places, 321 transitions, 4611 flow [2023-08-25 04:56:44,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 233.58333333333334) internal successors, (2803), 12 states have internal predecessors, (2803), 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 04:56:44,738 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:56:44,738 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:56:44,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-08-25 04:56:44,739 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:56:44,739 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:56:44,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1331129041, now seen corresponding path program 20 times [2023-08-25 04:56:44,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:56:44,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786305705] [2023-08-25 04:56:44,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:56:44,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:56:44,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:56:45,150 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 04:56:45,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:56:45,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786305705] [2023-08-25 04:56:45,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786305705] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:56:45,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:56:45,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-25 04:56:45,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776145972] [2023-08-25 04:56:45,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:56:45,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-25 04:56:45,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:56:45,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-25 04:56:45,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-08-25 04:56:45,152 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 629 [2023-08-25 04:56:45,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 321 transitions, 4611 flow. Second operand has 12 states, 12 states have (on average 233.58333333333334) internal successors, (2803), 12 states have internal predecessors, (2803), 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 04:56:45,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:56:45,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 629 [2023-08-25 04:56:45,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:57:11,422 INFO L124 PetriNetUnfolderBase]: 89972/163430 cut-off events. [2023-08-25 04:57:11,423 INFO L125 PetriNetUnfolderBase]: For 406442/406525 co-relation queries the response was YES. [2023-08-25 04:57:14,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 423663 conditions, 163430 events. 89972/163430 cut-off events. For 406442/406525 co-relation queries the response was YES. Maximal size of possible extension queue 2765. Compared 1616745 event pairs, 51868 based on Foata normal form. 152/162979 useless extension candidates. Maximal degree in co-relation 423579. Up to 60853 conditions per place. [2023-08-25 04:57:15,140 INFO L140 encePairwiseOnDemand]: 616/629 looper letters, 469 selfloop transitions, 116 changer transitions 0/614 dead transitions. [2023-08-25 04:57:15,141 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 614 transitions, 6491 flow [2023-08-25 04:57:15,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 04:57:15,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 04:57:15,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2923 transitions. [2023-08-25 04:57:15,143 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42245989304812837 [2023-08-25 04:57:15,143 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2923 transitions. [2023-08-25 04:57:15,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2923 transitions. [2023-08-25 04:57:15,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:57:15,143 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2923 transitions. [2023-08-25 04:57:15,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 265.72727272727275) internal successors, (2923), 11 states have internal predecessors, (2923), 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 04:57:15,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 629.0) internal successors, (7548), 12 states have internal predecessors, (7548), 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 04:57:15,148 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 629.0) internal successors, (7548), 12 states have internal predecessors, (7548), 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 04:57:15,148 INFO L175 Difference]: Start difference. First operand has 311 places, 321 transitions, 4611 flow. Second operand 11 states and 2923 transitions. [2023-08-25 04:57:15,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 614 transitions, 6491 flow [2023-08-25 04:57:17,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 614 transitions, 6409 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-08-25 04:57:17,269 INFO L231 Difference]: Finished difference. Result has 317 places, 316 transitions, 4640 flow [2023-08-25 04:57:17,269 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=4408, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=316, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=116, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4640, PETRI_PLACES=317, PETRI_TRANSITIONS=316} [2023-08-25 04:57:17,269 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 189 predicate places. [2023-08-25 04:57:17,269 INFO L495 AbstractCegarLoop]: Abstraction has has 317 places, 316 transitions, 4640 flow [2023-08-25 04:57:17,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 233.58333333333334) internal successors, (2803), 12 states have internal predecessors, (2803), 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 04:57:17,270 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:57:17,270 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:57:17,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-08-25 04:57:17,270 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:57:17,270 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:57:17,270 INFO L85 PathProgramCache]: Analyzing trace with hash 366358249, now seen corresponding path program 21 times [2023-08-25 04:57:17,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:57:17,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696289211] [2023-08-25 04:57:17,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:57:17,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:57:17,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:57:17,786 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 04:57:17,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:57:17,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696289211] [2023-08-25 04:57:17,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696289211] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:57:17,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:57:17,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-25 04:57:17,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689697958] [2023-08-25 04:57:17,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:57:17,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-25 04:57:17,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:57:17,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-25 04:57:17,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-08-25 04:57:17,789 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 629 [2023-08-25 04:57:17,790 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 316 transitions, 4640 flow. Second operand has 12 states, 12 states have (on average 233.58333333333334) internal successors, (2803), 12 states have internal predecessors, (2803), 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 04:57:17,790 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:57:17,790 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 629 [2023-08-25 04:57:17,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:57:46,513 INFO L124 PetriNetUnfolderBase]: 100011/181970 cut-off events. [2023-08-25 04:57:46,514 INFO L125 PetriNetUnfolderBase]: For 501021/501120 co-relation queries the response was YES. [2023-08-25 04:57:49,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 475512 conditions, 181970 events. 100011/181970 cut-off events. For 501021/501120 co-relation queries the response was YES. Maximal size of possible extension queue 3015. Compared 1826098 event pairs, 57689 based on Foata normal form. 78/181385 useless extension candidates. Maximal degree in co-relation 475428. Up to 68129 conditions per place. [2023-08-25 04:57:50,601 INFO L140 encePairwiseOnDemand]: 615/629 looper letters, 537 selfloop transitions, 96 changer transitions 0/662 dead transitions. [2023-08-25 04:57:50,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 662 transitions, 7305 flow [2023-08-25 04:57:50,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 04:57:50,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 04:57:50,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2950 transitions. [2023-08-25 04:57:50,603 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42636219106807344 [2023-08-25 04:57:50,603 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2950 transitions. [2023-08-25 04:57:50,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2950 transitions. [2023-08-25 04:57:50,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:57:50,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2950 transitions. [2023-08-25 04:57:50,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 268.1818181818182) internal successors, (2950), 11 states have internal predecessors, (2950), 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 04:57:50,608 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 629.0) internal successors, (7548), 12 states have internal predecessors, (7548), 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 04:57:50,608 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 629.0) internal successors, (7548), 12 states have internal predecessors, (7548), 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 04:57:50,608 INFO L175 Difference]: Start difference. First operand has 317 places, 316 transitions, 4640 flow. Second operand 11 states and 2950 transitions. [2023-08-25 04:57:50,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 662 transitions, 7305 flow [2023-08-25 04:57:53,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 662 transitions, 6974 flow, removed 2 selfloop flow, removed 11 redundant places. [2023-08-25 04:57:53,635 INFO L231 Difference]: Finished difference. Result has 323 places, 341 transitions, 5108 flow [2023-08-25 04:57:53,635 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=4352, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=316, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5108, PETRI_PLACES=323, PETRI_TRANSITIONS=341} [2023-08-25 04:57:53,635 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 195 predicate places. [2023-08-25 04:57:53,635 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 341 transitions, 5108 flow [2023-08-25 04:57:53,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 233.58333333333334) internal successors, (2803), 12 states have internal predecessors, (2803), 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 04:57:53,636 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:57:53,636 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:57:53,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-08-25 04:57:53,636 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:57:53,636 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:57:53,636 INFO L85 PathProgramCache]: Analyzing trace with hash 490751219, now seen corresponding path program 22 times [2023-08-25 04:57:53,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:57:53,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7633454] [2023-08-25 04:57:53,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:57:53,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:57:53,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:57:54,109 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 04:57:54,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:57:54,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7633454] [2023-08-25 04:57:54,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7633454] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:57:54,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:57:54,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-25 04:57:54,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712020109] [2023-08-25 04:57:54,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:57:54,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-25 04:57:54,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:57:54,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-25 04:57:54,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-08-25 04:57:54,111 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 629 [2023-08-25 04:57:54,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 341 transitions, 5108 flow. Second operand has 13 states, 13 states have (on average 233.30769230769232) internal successors, (3033), 13 states have internal predecessors, (3033), 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 04:57:54,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:57:54,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 629 [2023-08-25 04:57:54,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:58:28,532 INFO L124 PetriNetUnfolderBase]: 110829/202485 cut-off events. [2023-08-25 04:58:28,532 INFO L125 PetriNetUnfolderBase]: For 512998/513121 co-relation queries the response was YES. [2023-08-25 04:58:32,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 535563 conditions, 202485 events. 110829/202485 cut-off events. For 512998/513121 co-relation queries the response was YES. Maximal size of possible extension queue 3225. Compared 2072922 event pairs, 33529 based on Foata normal form. 114/202314 useless extension candidates. Maximal degree in co-relation 535474. Up to 66512 conditions per place. [2023-08-25 04:58:32,941 INFO L140 encePairwiseOnDemand]: 615/629 looper letters, 632 selfloop transitions, 124 changer transitions 0/785 dead transitions. [2023-08-25 04:58:32,941 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 785 transitions, 8860 flow [2023-08-25 04:58:32,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-25 04:58:32,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-25 04:58:32,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 3716 transitions. [2023-08-25 04:58:32,943 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4219850102203043 [2023-08-25 04:58:32,943 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 3716 transitions. [2023-08-25 04:58:32,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 3716 transitions. [2023-08-25 04:58:32,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:58:32,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 3716 transitions. [2023-08-25 04:58:32,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 265.42857142857144) internal successors, (3716), 14 states have internal predecessors, (3716), 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 04:58:32,949 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 629.0) internal successors, (9435), 15 states have internal predecessors, (9435), 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 04:58:32,949 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 629.0) internal successors, (9435), 15 states have internal predecessors, (9435), 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 04:58:32,949 INFO L175 Difference]: Start difference. First operand has 323 places, 341 transitions, 5108 flow. Second operand 14 states and 3716 transitions. [2023-08-25 04:58:32,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 785 transitions, 8860 flow [2023-08-25 04:58:38,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 785 transitions, 8741 flow, removed 41 selfloop flow, removed 2 redundant places. [2023-08-25 04:58:38,398 INFO L231 Difference]: Finished difference. Result has 343 places, 365 transitions, 5848 flow [2023-08-25 04:58:38,398 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=5001, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=341, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=5848, PETRI_PLACES=343, PETRI_TRANSITIONS=365} [2023-08-25 04:58:38,399 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 215 predicate places. [2023-08-25 04:58:38,399 INFO L495 AbstractCegarLoop]: Abstraction has has 343 places, 365 transitions, 5848 flow [2023-08-25 04:58:38,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 233.30769230769232) internal successors, (3033), 13 states have internal predecessors, (3033), 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 04:58:38,427 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:58:38,428 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:58:38,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-08-25 04:58:38,428 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:58:38,428 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:58:38,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1265539493, now seen corresponding path program 23 times [2023-08-25 04:58:38,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:58:38,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018671864] [2023-08-25 04:58:38,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:58:38,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:58:38,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:58:38,820 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 04:58:38,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:58:38,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018671864] [2023-08-25 04:58:38,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018671864] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:58:38,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:58:38,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-25 04:58:38,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609506332] [2023-08-25 04:58:38,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:58:38,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-25 04:58:38,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:58:38,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-25 04:58:38,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-08-25 04:58:38,822 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 629 [2023-08-25 04:58:38,823 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 365 transitions, 5848 flow. Second operand has 12 states, 12 states have (on average 233.58333333333334) internal successors, (2803), 12 states have internal predecessors, (2803), 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 04:58:38,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:58:38,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 629 [2023-08-25 04:58:38,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:59:19,139 INFO L124 PetriNetUnfolderBase]: 112313/205045 cut-off events. [2023-08-25 04:59:19,140 INFO L125 PetriNetUnfolderBase]: For 658686/658818 co-relation queries the response was YES. [2023-08-25 04:59:23,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 551799 conditions, 205045 events. 112313/205045 cut-off events. For 658686/658818 co-relation queries the response was YES. Maximal size of possible extension queue 3358. Compared 2096424 event pairs, 66083 based on Foata normal form. 90/204361 useless extension candidates. Maximal degree in co-relation 551701. Up to 80882 conditions per place. [2023-08-25 04:59:24,101 INFO L140 encePairwiseOnDemand]: 615/629 looper letters, 571 selfloop transitions, 129 changer transitions 0/729 dead transitions. [2023-08-25 04:59:24,101 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 729 transitions, 8511 flow [2023-08-25 04:59:24,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 04:59:24,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 04:59:24,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3205 transitions. [2023-08-25 04:59:24,104 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42461579226285107 [2023-08-25 04:59:24,104 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 3205 transitions. [2023-08-25 04:59:24,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 3205 transitions. [2023-08-25 04:59:24,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:59:24,104 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 3205 transitions. [2023-08-25 04:59:24,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 267.0833333333333) internal successors, (3205), 12 states have internal predecessors, (3205), 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 04:59:24,109 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 629.0) internal successors, (8177), 13 states have internal predecessors, (8177), 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 04:59:24,109 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 629.0) internal successors, (8177), 13 states have internal predecessors, (8177), 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 04:59:24,109 INFO L175 Difference]: Start difference. First operand has 343 places, 365 transitions, 5848 flow. Second operand 12 states and 3205 transitions. [2023-08-25 04:59:24,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 729 transitions, 8511 flow [2023-08-25 04:59:29,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 729 transitions, 8420 flow, removed 39 selfloop flow, removed 2 redundant places. [2023-08-25 04:59:29,392 INFO L231 Difference]: Finished difference. Result has 357 places, 388 transitions, 6415 flow [2023-08-25 04:59:29,393 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=629, PETRI_DIFFERENCE_MINUEND_FLOW=5761, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=106, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=6415, PETRI_PLACES=357, PETRI_TRANSITIONS=388} [2023-08-25 04:59:29,393 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 229 predicate places. [2023-08-25 04:59:29,393 INFO L495 AbstractCegarLoop]: Abstraction has has 357 places, 388 transitions, 6415 flow [2023-08-25 04:59:29,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 233.58333333333334) internal successors, (2803), 12 states have internal predecessors, (2803), 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 04:59:29,394 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:59:29,394 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:59:29,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-08-25 04:59:29,394 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-25 04:59:29,394 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:59:29,394 INFO L85 PathProgramCache]: Analyzing trace with hash 358171831, now seen corresponding path program 24 times [2023-08-25 04:59:29,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:59:29,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262654957] [2023-08-25 04:59:29,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:59:29,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:59:29,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:59:29,797 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-25 04:59:29,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:59:29,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262654957] [2023-08-25 04:59:29,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262654957] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:59:29,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:59:29,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-25 04:59:29,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115044861] [2023-08-25 04:59:29,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:59:29,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-25 04:59:29,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:59:29,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-25 04:59:29,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-08-25 04:59:29,800 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 629 [2023-08-25 04:59:29,801 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 388 transitions, 6415 flow. Second operand has 13 states, 13 states have (on average 233.30769230769232) internal successors, (3033), 13 states have internal predecessors, (3033), 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 04:59:29,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:59:29,801 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 629 [2023-08-25 04:59:29,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2023-08-25 05:00:08,080 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-25 05:00:09,104 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown