/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-array-int-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 04:48:04,199 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 04:48:04,281 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 04:48:04,288 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 04:48:04,289 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 04:48:04,324 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 04:48:04,325 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 04:48:04,330 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 04:48:04,330 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 04:48:04,333 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 04:48:04,333 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 04:48:04,334 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 04:48:04,334 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 04:48:04,334 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 04:48:04,334 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 04:48:04,335 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 04:48:04,335 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 04:48:04,335 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 04:48:04,341 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 04:48:04,341 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 04:48:04,341 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 04:48:04,342 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 04:48:04,342 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 04:48:04,343 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 04:48:04,343 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 04:48:04,343 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 04:48:04,343 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 04:48:04,344 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 04:48:04,344 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 04:48:04,344 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 04:48:04,345 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 04:48:04,345 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 04:48:04,346 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 04:48:04,346 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 04:48:04,346 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 04:48:04,346 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 04:48:04,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 04:48:04,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 04:48:04,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 04:48:04,660 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 04:48:04,660 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 04:48:04,662 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-array-int-trans.wvr.c [2023-08-25 04:48:05,851 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 04:48:06,098 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 04:48:06,099 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-array-int-trans.wvr.c [2023-08-25 04:48:06,112 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75dec79b4/539885b725d3450986bc743123ea6419/FLAGdee655105 [2023-08-25 04:48:06,130 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75dec79b4/539885b725d3450986bc743123ea6419 [2023-08-25 04:48:06,135 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 04:48:06,138 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 04:48:06,139 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 04:48:06,140 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 04:48:06,142 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 04:48:06,143 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 04:48:06" (1/1) ... [2023-08-25 04:48:06,144 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a3b797 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:48:06, skipping insertion in model container [2023-08-25 04:48:06,144 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 04:48:06" (1/1) ... [2023-08-25 04:48:06,173 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 04:48:06,378 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 04:48:06,389 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 04:48:06,430 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 04:48:06,443 INFO L206 MainTranslator]: Completed translation [2023-08-25 04:48:06,443 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:48:06 WrapperNode [2023-08-25 04:48:06,443 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 04:48:06,445 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 04:48:06,445 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 04:48:06,445 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 04:48:06,450 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:48:06" (1/1) ... [2023-08-25 04:48:06,473 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:48:06" (1/1) ... [2023-08-25 04:48:06,527 INFO L138 Inliner]: procedures = 26, calls = 50, calls flagged for inlining = 14, calls inlined = 22, statements flattened = 515 [2023-08-25 04:48:06,527 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 04:48:06,528 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 04:48:06,528 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 04:48:06,528 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 04:48:06,538 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:48:06" (1/1) ... [2023-08-25 04:48:06,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:48:06" (1/1) ... [2023-08-25 04:48:06,555 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:48:06" (1/1) ... [2023-08-25 04:48:06,556 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:48:06" (1/1) ... [2023-08-25 04:48:06,588 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:48:06" (1/1) ... [2023-08-25 04:48:06,593 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:48:06" (1/1) ... [2023-08-25 04:48:06,596 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:48:06" (1/1) ... [2023-08-25 04:48:06,612 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:48:06" (1/1) ... [2023-08-25 04:48:06,621 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 04:48:06,622 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 04:48:06,622 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 04:48:06,622 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 04:48:06,623 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:48:06" (1/1) ... [2023-08-25 04:48:06,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 04:48:06,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 04:48:06,658 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 04:48:06,670 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 04:48:06,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 04:48:06,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 04:48:06,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 04:48:06,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 04:48:06,697 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 04:48:06,698 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 04:48:06,698 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 04:48:06,698 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 04:48:06,698 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-25 04:48:06,698 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-25 04:48:06,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 04:48:06,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-25 04:48:06,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 04:48:06,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 04:48:06,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 04:48:06,701 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 04:48:06,843 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 04:48:06,846 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 04:48:07,452 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 04:48:07,468 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 04:48:07,469 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-08-25 04:48:07,471 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 04:48:07 BoogieIcfgContainer [2023-08-25 04:48:07,471 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 04:48:07,475 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 04:48:07,475 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 04:48:07,477 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 04:48:07,477 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 04:48:06" (1/3) ... [2023-08-25 04:48:07,478 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7247c835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 04:48:07, skipping insertion in model container [2023-08-25 04:48:07,478 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:48:06" (2/3) ... [2023-08-25 04:48:07,478 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7247c835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 04:48:07, skipping insertion in model container [2023-08-25 04:48:07,478 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 04:48:07" (3/3) ... [2023-08-25 04:48:07,479 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-array-int-trans.wvr.c [2023-08-25 04:48:07,493 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 04:48:07,493 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 61 error locations. [2023-08-25 04:48:07,493 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 04:48:07,671 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-25 04:48:07,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 591 places, 614 transitions, 1252 flow [2023-08-25 04:48:07,945 INFO L124 PetriNetUnfolderBase]: 33/611 cut-off events. [2023-08-25 04:48:07,945 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 04:48:07,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 624 conditions, 611 events. 33/611 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1462 event pairs, 0 based on Foata normal form. 0/517 useless extension candidates. Maximal degree in co-relation 439. Up to 3 conditions per place. [2023-08-25 04:48:07,964 INFO L82 GeneralOperation]: Start removeDead. Operand has 591 places, 614 transitions, 1252 flow [2023-08-25 04:48:07,982 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 577 places, 600 transitions, 1218 flow [2023-08-25 04:48:07,986 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 04:48:07,997 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 577 places, 600 transitions, 1218 flow [2023-08-25 04:48:08,000 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 577 places, 600 transitions, 1218 flow [2023-08-25 04:48:08,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 577 places, 600 transitions, 1218 flow [2023-08-25 04:48:08,147 INFO L124 PetriNetUnfolderBase]: 33/600 cut-off events. [2023-08-25 04:48:08,147 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 04:48:08,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 613 conditions, 600 events. 33/600 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1464 event pairs, 0 based on Foata normal form. 0/507 useless extension candidates. Maximal degree in co-relation 439. Up to 3 conditions per place. [2023-08-25 04:48:08,183 INFO L119 LiptonReduction]: Number of co-enabled transitions 85536 [2023-08-25 04:48:20,365 INFO L134 LiptonReduction]: Checked pairs total: 544054 [2023-08-25 04:48:20,366 INFO L136 LiptonReduction]: Total number of compositions: 518 [2023-08-25 04:48:20,378 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 04:48:20,384 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;@515d07a6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 04:48:20,384 INFO L358 AbstractCegarLoop]: Starting to check reachability of 106 error locations. [2023-08-25 04:48:20,385 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 04:48:20,385 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 04:48:20,386 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 04:48:20,386 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:48:20,386 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 04:48:20,387 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 102 more)] === [2023-08-25 04:48:20,395 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:48:20,395 INFO L85 PathProgramCache]: Analyzing trace with hash 2228, now seen corresponding path program 1 times [2023-08-25 04:48:20,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:48:20,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253066749] [2023-08-25 04:48:20,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:48:20,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:48:20,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:48:20,492 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 04:48:20,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:48:20,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253066749] [2023-08-25 04:48:20,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253066749] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:48:20,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:48:20,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 04:48:20,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465886751] [2023-08-25 04:48:20,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:48:20,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 04:48:20,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:48:20,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 04:48:20,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 04:48:20,534 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 588 out of 1132 [2023-08-25 04:48:20,541 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 221 transitions, 460 flow. Second operand has 2 states, 2 states have (on average 588.5) internal successors, (1177), 2 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:48:20,542 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:48:20,542 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 588 of 1132 [2023-08-25 04:48:20,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:48:23,933 INFO L124 PetriNetUnfolderBase]: 9090/31632 cut-off events. [2023-08-25 04:48:23,934 INFO L125 PetriNetUnfolderBase]: For 516/657 co-relation queries the response was YES. [2023-08-25 04:48:24,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44205 conditions, 31632 events. 9090/31632 cut-off events. For 516/657 co-relation queries the response was YES. Maximal size of possible extension queue 774. Compared 387418 event pairs, 6657 based on Foata normal form. 2324/28074 useless extension candidates. Maximal degree in co-relation 40695. Up to 12203 conditions per place. [2023-08-25 04:48:24,223 INFO L140 encePairwiseOnDemand]: 1108/1132 looper letters, 58 selfloop transitions, 0 changer transitions 0/197 dead transitions. [2023-08-25 04:48:24,223 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 197 transitions, 528 flow [2023-08-25 04:48:24,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 04:48:24,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 04:48:24,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1258 transitions. [2023-08-25 04:48:24,244 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5556537102473498 [2023-08-25 04:48:24,245 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1258 transitions. [2023-08-25 04:48:24,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1258 transitions. [2023-08-25 04:48:24,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:48:24,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1258 transitions. [2023-08-25 04:48:24,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 629.0) internal successors, (1258), 2 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:48:24,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1132.0) internal successors, (3396), 3 states have internal predecessors, (3396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:48:24,270 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1132.0) internal successors, (3396), 3 states have internal predecessors, (3396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:48:24,271 INFO L175 Difference]: Start difference. First operand has 215 places, 221 transitions, 460 flow. Second operand 2 states and 1258 transitions. [2023-08-25 04:48:24,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 197 transitions, 528 flow [2023-08-25 04:48:24,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 197 transitions, 516 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-25 04:48:24,298 INFO L231 Difference]: Finished difference. Result has 190 places, 197 transitions, 400 flow [2023-08-25 04:48:24,300 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1132, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=400, PETRI_PLACES=190, PETRI_TRANSITIONS=197} [2023-08-25 04:48:24,303 INFO L281 CegarLoopForPetriNet]: 215 programPoint places, -25 predicate places. [2023-08-25 04:48:24,303 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 197 transitions, 400 flow [2023-08-25 04:48:24,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 588.5) internal successors, (1177), 2 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:48:24,304 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:48:24,304 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:48:24,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 04:48:24,305 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 102 more)] === [2023-08-25 04:48:24,306 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:48:24,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1968334578, now seen corresponding path program 1 times [2023-08-25 04:48:24,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:48:24,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933929732] [2023-08-25 04:48:24,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:48:24,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:48:24,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:48:24,528 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 04:48:24,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:48:24,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933929732] [2023-08-25 04:48:24,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933929732] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:48:24,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:48:24,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:48:24,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963289028] [2023-08-25 04:48:24,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:48:24,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:48:24,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:48:24,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:48:24,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:48:24,534 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 570 out of 1132 [2023-08-25 04:48:24,536 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 197 transitions, 400 flow. Second operand has 3 states, 3 states have (on average 572.3333333333334) internal successors, (1717), 3 states have internal predecessors, (1717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:48:24,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:48:24,536 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 570 of 1132 [2023-08-25 04:48:24,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:48:27,432 INFO L124 PetriNetUnfolderBase]: 12134/38754 cut-off events. [2023-08-25 04:48:27,432 INFO L125 PetriNetUnfolderBase]: For 161/404 co-relation queries the response was YES. [2023-08-25 04:48:27,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55224 conditions, 38754 events. 12134/38754 cut-off events. For 161/404 co-relation queries the response was YES. Maximal size of possible extension queue 975. Compared 471066 event pairs, 9137 based on Foata normal form. 0/31949 useless extension candidates. Maximal degree in co-relation 55221. Up to 16334 conditions per place. [2023-08-25 04:48:27,660 INFO L140 encePairwiseOnDemand]: 1127/1132 looper letters, 61 selfloop transitions, 1 changer transitions 0/193 dead transitions. [2023-08-25 04:48:27,660 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 193 transitions, 516 flow [2023-08-25 04:48:27,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:48:27,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:48:27,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1776 transitions. [2023-08-25 04:48:27,665 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5229681978798587 [2023-08-25 04:48:27,665 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1776 transitions. [2023-08-25 04:48:27,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1776 transitions. [2023-08-25 04:48:27,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:48:27,667 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1776 transitions. [2023-08-25 04:48:27,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 592.0) internal successors, (1776), 3 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:48:27,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1132.0) internal successors, (4528), 4 states have internal predecessors, (4528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:48:27,678 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1132.0) internal successors, (4528), 4 states have internal predecessors, (4528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:48:27,679 INFO L175 Difference]: Start difference. First operand has 190 places, 197 transitions, 400 flow. Second operand 3 states and 1776 transitions. [2023-08-25 04:48:27,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 193 transitions, 516 flow [2023-08-25 04:48:27,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 193 transitions, 516 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:48:27,688 INFO L231 Difference]: Finished difference. Result has 188 places, 193 transitions, 394 flow [2023-08-25 04:48:27,688 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1132, PETRI_DIFFERENCE_MINUEND_FLOW=392, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=394, PETRI_PLACES=188, PETRI_TRANSITIONS=193} [2023-08-25 04:48:27,689 INFO L281 CegarLoopForPetriNet]: 215 programPoint places, -27 predicate places. [2023-08-25 04:48:27,690 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 193 transitions, 394 flow [2023-08-25 04:48:27,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 572.3333333333334) internal successors, (1717), 3 states have internal predecessors, (1717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:48:27,691 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:48:27,692 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:48:27,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 04:48:27,693 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 102 more)] === [2023-08-25 04:48:27,699 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:48:27,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1778541846, now seen corresponding path program 1 times [2023-08-25 04:48:27,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:48:27,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433020808] [2023-08-25 04:48:27,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:48:27,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:48:27,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:48:27,807 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 04:48:27,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:48:27,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433020808] [2023-08-25 04:48:27,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433020808] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:48:27,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:48:27,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:48:27,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794420575] [2023-08-25 04:48:27,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:48:27,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:48:27,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:48:27,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:48:27,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:48:27,813 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 570 out of 1132 [2023-08-25 04:48:27,814 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 193 transitions, 394 flow. Second operand has 3 states, 3 states have (on average 573.0) internal successors, (1719), 3 states have internal predecessors, (1719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:48:27,815 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:48:27,815 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 570 of 1132 [2023-08-25 04:48:27,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:48:30,634 INFO L124 PetriNetUnfolderBase]: 12642/41373 cut-off events. [2023-08-25 04:48:30,634 INFO L125 PetriNetUnfolderBase]: For 170/403 co-relation queries the response was YES. [2023-08-25 04:48:30,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58577 conditions, 41373 events. 12642/41373 cut-off events. For 170/403 co-relation queries the response was YES. Maximal size of possible extension queue 994. Compared 513264 event pairs, 9597 based on Foata normal form. 0/34255 useless extension candidates. Maximal degree in co-relation 58573. Up to 17040 conditions per place. [2023-08-25 04:48:30,893 INFO L140 encePairwiseOnDemand]: 1127/1132 looper letters, 61 selfloop transitions, 1 changer transitions 0/189 dead transitions. [2023-08-25 04:48:30,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 189 transitions, 510 flow [2023-08-25 04:48:30,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:48:30,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:48:30,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1776 transitions. [2023-08-25 04:48:30,897 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5229681978798587 [2023-08-25 04:48:30,897 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1776 transitions. [2023-08-25 04:48:30,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1776 transitions. [2023-08-25 04:48:30,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:48:30,899 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1776 transitions. [2023-08-25 04:48:30,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 592.0) internal successors, (1776), 3 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:48:30,907 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1132.0) internal successors, (4528), 4 states have internal predecessors, (4528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:48:30,909 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1132.0) internal successors, (4528), 4 states have internal predecessors, (4528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:48:30,909 INFO L175 Difference]: Start difference. First operand has 188 places, 193 transitions, 394 flow. Second operand 3 states and 1776 transitions. [2023-08-25 04:48:30,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 189 transitions, 510 flow [2023-08-25 04:48:30,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 189 transitions, 509 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 04:48:30,913 INFO L231 Difference]: Finished difference. Result has 185 places, 189 transitions, 387 flow [2023-08-25 04:48:30,913 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1132, PETRI_DIFFERENCE_MINUEND_FLOW=385, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=387, PETRI_PLACES=185, PETRI_TRANSITIONS=189} [2023-08-25 04:48:30,914 INFO L281 CegarLoopForPetriNet]: 215 programPoint places, -30 predicate places. [2023-08-25 04:48:30,914 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 189 transitions, 387 flow [2023-08-25 04:48:30,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 573.0) internal successors, (1719), 3 states have internal predecessors, (1719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:48:30,916 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:48:30,916 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:48:30,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 04:48:30,920 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 102 more)] === [2023-08-25 04:48:30,920 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:48:30,920 INFO L85 PathProgramCache]: Analyzing trace with hash 218318060, now seen corresponding path program 1 times [2023-08-25 04:48:30,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:48:30,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888295975] [2023-08-25 04:48:30,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:48:30,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:48:30,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:48:30,978 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 04:48:30,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:48:30,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888295975] [2023-08-25 04:48:30,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888295975] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:48:30,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:48:30,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:48:30,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720591208] [2023-08-25 04:48:30,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:48:30,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:48:30,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:48:30,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:48:30,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:48:30,982 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 570 out of 1132 [2023-08-25 04:48:30,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 189 transitions, 387 flow. Second operand has 3 states, 3 states have (on average 573.3333333333334) internal successors, (1720), 3 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:48:30,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:48:30,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 570 of 1132 [2023-08-25 04:48:30,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:48:33,402 INFO L124 PetriNetUnfolderBase]: 10616/34755 cut-off events. [2023-08-25 04:48:33,402 INFO L125 PetriNetUnfolderBase]: For 169/403 co-relation queries the response was YES. [2023-08-25 04:48:33,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49160 conditions, 34755 events. 10616/34755 cut-off events. For 169/403 co-relation queries the response was YES. Maximal size of possible extension queue 870. Compared 422780 event pairs, 7901 based on Foata normal form. 0/28490 useless extension candidates. Maximal degree in co-relation 49156. Up to 14274 conditions per place. [2023-08-25 04:48:33,619 INFO L140 encePairwiseOnDemand]: 1127/1132 looper letters, 59 selfloop transitions, 1 changer transitions 0/185 dead transitions. [2023-08-25 04:48:33,619 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 185 transitions, 499 flow [2023-08-25 04:48:33,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:48:33,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:48:33,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1774 transitions. [2023-08-25 04:48:33,624 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5223792697290931 [2023-08-25 04:48:33,624 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1774 transitions. [2023-08-25 04:48:33,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1774 transitions. [2023-08-25 04:48:33,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:48:33,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1774 transitions. [2023-08-25 04:48:33,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 591.3333333333334) internal successors, (1774), 3 states have internal predecessors, (1774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:48:33,635 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1132.0) internal successors, (4528), 4 states have internal predecessors, (4528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:48:33,637 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1132.0) internal successors, (4528), 4 states have internal predecessors, (4528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:48:33,637 INFO L175 Difference]: Start difference. First operand has 185 places, 189 transitions, 387 flow. Second operand 3 states and 1774 transitions. [2023-08-25 04:48:33,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 185 transitions, 499 flow [2023-08-25 04:48:33,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 185 transitions, 498 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 04:48:33,641 INFO L231 Difference]: Finished difference. Result has 182 places, 185 transitions, 380 flow [2023-08-25 04:48:33,641 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1132, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=380, PETRI_PLACES=182, PETRI_TRANSITIONS=185} [2023-08-25 04:48:33,643 INFO L281 CegarLoopForPetriNet]: 215 programPoint places, -33 predicate places. [2023-08-25 04:48:33,643 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 185 transitions, 380 flow [2023-08-25 04:48:33,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 573.3333333333334) internal successors, (1720), 3 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:48:33,644 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:48:33,644 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:48:33,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 04:48:33,645 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 102 more)] === [2023-08-25 04:48:33,645 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:48:33,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1591564234, now seen corresponding path program 1 times [2023-08-25 04:48:33,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:48:33,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586317397] [2023-08-25 04:48:33,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:48:33,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:48:33,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:48:33,707 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 04:48:33,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:48:33,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586317397] [2023-08-25 04:48:33,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586317397] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:48:33,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:48:33,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 04:48:33,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431028916] [2023-08-25 04:48:33,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:48:33,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:48:33,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:48:33,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:48:33,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:48:33,712 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 580 out of 1132 [2023-08-25 04:48:33,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 185 transitions, 380 flow. Second operand has 3 states, 3 states have (on average 583.0) internal successors, (1749), 3 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 04:48:33,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:48:33,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 580 of 1132 [2023-08-25 04:48:33,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:48:36,051 INFO L124 PetriNetUnfolderBase]: 9878/32449 cut-off events. [2023-08-25 04:48:36,051 INFO L125 PetriNetUnfolderBase]: For 144/144 co-relation queries the response was YES. [2023-08-25 04:48:36,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45850 conditions, 32449 events. 9878/32449 cut-off events. For 144/144 co-relation queries the response was YES. Maximal size of possible extension queue 769. Compared 392414 event pairs, 6657 based on Foata normal form. 0/26464 useless extension candidates. Maximal degree in co-relation 45846. Up to 12203 conditions per place. [2023-08-25 04:48:36,285 INFO L140 encePairwiseOnDemand]: 1129/1132 looper letters, 89 selfloop transitions, 2 changer transitions 0/218 dead transitions. [2023-08-25 04:48:36,286 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 218 transitions, 630 flow [2023-08-25 04:48:36,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:48:36,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:48:36,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1832 transitions. [2023-08-25 04:48:36,290 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5394581861012956 [2023-08-25 04:48:36,290 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1832 transitions. [2023-08-25 04:48:36,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1832 transitions. [2023-08-25 04:48:36,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:48:36,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1832 transitions. [2023-08-25 04:48:36,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 610.6666666666666) internal successors, (1832), 3 states have internal predecessors, (1832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:48:36,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1132.0) internal successors, (4528), 4 states have internal predecessors, (4528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:48:36,305 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1132.0) internal successors, (4528), 4 states have internal predecessors, (4528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:48:36,305 INFO L175 Difference]: Start difference. First operand has 182 places, 185 transitions, 380 flow. Second operand 3 states and 1832 transitions. [2023-08-25 04:48:36,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 218 transitions, 630 flow [2023-08-25 04:48:36,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 218 transitions, 629 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 04:48:36,309 INFO L231 Difference]: Finished difference. Result has 184 places, 186 transitions, 391 flow [2023-08-25 04:48:36,310 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1132, PETRI_DIFFERENCE_MINUEND_FLOW=379, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=391, PETRI_PLACES=184, PETRI_TRANSITIONS=186} [2023-08-25 04:48:36,312 INFO L281 CegarLoopForPetriNet]: 215 programPoint places, -31 predicate places. [2023-08-25 04:48:36,313 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 186 transitions, 391 flow [2023-08-25 04:48:36,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 583.0) internal successors, (1749), 3 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 04:48:36,313 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:48:36,314 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:48:36,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 04:48:36,314 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 102 more)] === [2023-08-25 04:48:36,314 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:48:36,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1048710293, now seen corresponding path program 1 times [2023-08-25 04:48:36,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:48:36,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740305757] [2023-08-25 04:48:36,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:48:36,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:48:36,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:48:36,684 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 04:48:36,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:48:36,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740305757] [2023-08-25 04:48:36,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740305757] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:48:36,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:48:36,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:48:36,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301460614] [2023-08-25 04:48:36,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:48:36,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 04:48:36,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:48:36,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 04:48:36,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 04:48:36,689 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 474 out of 1132 [2023-08-25 04:48:36,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 186 transitions, 391 flow. Second operand has 6 states, 6 states have (on average 476.3333333333333) internal successors, (2858), 6 states have internal predecessors, (2858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:48:36,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:48:36,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 474 of 1132 [2023-08-25 04:48:36,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:49:45,273 INFO L124 PetriNetUnfolderBase]: 689727/937379 cut-off events. [2023-08-25 04:49:45,273 INFO L125 PetriNetUnfolderBase]: For 33926/33926 co-relation queries the response was YES. [2023-08-25 04:49:47,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1894163 conditions, 937379 events. 689727/937379 cut-off events. For 33926/33926 co-relation queries the response was YES. Maximal size of possible extension queue 8897. Compared 7416617 event pairs, 74748 based on Foata normal form. 0/794089 useless extension candidates. Maximal degree in co-relation 1894158. Up to 333968 conditions per place. [2023-08-25 04:49:51,028 INFO L140 encePairwiseOnDemand]: 1127/1132 looper letters, 559 selfloop transitions, 4 changer transitions 0/609 dead transitions. [2023-08-25 04:49:51,029 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 609 transitions, 2403 flow [2023-08-25 04:49:51,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 04:49:51,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 04:49:51,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3403 transitions. [2023-08-25 04:49:51,037 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5010306242638398 [2023-08-25 04:49:51,037 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3403 transitions. [2023-08-25 04:49:51,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3403 transitions. [2023-08-25 04:49:51,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:49:51,039 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3403 transitions. [2023-08-25 04:49:51,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 567.1666666666666) internal successors, (3403), 6 states have internal predecessors, (3403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:49:51,054 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1132.0) internal successors, (7924), 7 states have internal predecessors, (7924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:49:51,056 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1132.0) internal successors, (7924), 7 states have internal predecessors, (7924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:49:51,056 INFO L175 Difference]: Start difference. First operand has 184 places, 186 transitions, 391 flow. Second operand 6 states and 3403 transitions. [2023-08-25 04:49:51,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 609 transitions, 2403 flow [2023-08-25 04:49:51,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 609 transitions, 2393 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 04:49:51,094 INFO L231 Difference]: Finished difference. Result has 187 places, 185 transitions, 395 flow [2023-08-25 04:49:51,094 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1132, PETRI_DIFFERENCE_MINUEND_FLOW=387, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=395, PETRI_PLACES=187, PETRI_TRANSITIONS=185} [2023-08-25 04:49:51,095 INFO L281 CegarLoopForPetriNet]: 215 programPoint places, -28 predicate places. [2023-08-25 04:49:51,095 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 185 transitions, 395 flow [2023-08-25 04:49:51,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 476.3333333333333) internal successors, (2858), 6 states have internal predecessors, (2858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:49:51,096 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:49:51,097 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:49:51,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 04:49:51,097 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 102 more)] === [2023-08-25 04:49:51,097 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:49:51,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1041398678, now seen corresponding path program 1 times [2023-08-25 04:49:51,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:49:51,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423391844] [2023-08-25 04:49:51,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:49:51,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:49:51,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:49:51,125 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 04:49:51,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:49:51,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423391844] [2023-08-25 04:49:51,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423391844] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:49:51,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:49:51,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 04:49:51,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289565764] [2023-08-25 04:49:51,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:49:51,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:49:51,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:49:51,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:49:51,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:49:51,129 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 580 out of 1132 [2023-08-25 04:49:51,130 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 185 transitions, 395 flow. Second operand has 3 states, 3 states have (on average 583.6666666666666) internal successors, (1751), 3 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 04:49:51,130 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:49:51,131 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 580 of 1132 [2023-08-25 04:49:51,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:49:53,563 INFO L124 PetriNetUnfolderBase]: 10793/34345 cut-off events. [2023-08-25 04:49:53,563 INFO L125 PetriNetUnfolderBase]: For 2611/2673 co-relation queries the response was YES. [2023-08-25 04:49:53,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51910 conditions, 34345 events. 10793/34345 cut-off events. For 2611/2673 co-relation queries the response was YES. Maximal size of possible extension queue 804. Compared 409844 event pairs, 7301 based on Foata normal form. 0/28573 useless extension candidates. Maximal degree in co-relation 51905. Up to 13273 conditions per place. [2023-08-25 04:49:53,745 INFO L140 encePairwiseOnDemand]: 1129/1132 looper letters, 91 selfloop transitions, 2 changer transitions 0/219 dead transitions. [2023-08-25 04:49:53,746 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 219 transitions, 661 flow [2023-08-25 04:49:53,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:49:53,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:49:53,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1832 transitions. [2023-08-25 04:49:53,749 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5394581861012956 [2023-08-25 04:49:53,749 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1832 transitions. [2023-08-25 04:49:53,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1832 transitions. [2023-08-25 04:49:53,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:49:53,750 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1832 transitions. [2023-08-25 04:49:53,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 610.6666666666666) internal successors, (1832), 3 states have internal predecessors, (1832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:49:53,760 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1132.0) internal successors, (4528), 4 states have internal predecessors, (4528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:49:53,761 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1132.0) internal successors, (4528), 4 states have internal predecessors, (4528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:49:53,761 INFO L175 Difference]: Start difference. First operand has 187 places, 185 transitions, 395 flow. Second operand 3 states and 1832 transitions. [2023-08-25 04:49:53,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 219 transitions, 661 flow [2023-08-25 04:49:53,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 219 transitions, 652 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 04:49:53,782 INFO L231 Difference]: Finished difference. Result has 186 places, 186 transitions, 400 flow [2023-08-25 04:49:53,782 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1132, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=400, PETRI_PLACES=186, PETRI_TRANSITIONS=186} [2023-08-25 04:49:53,783 INFO L281 CegarLoopForPetriNet]: 215 programPoint places, -29 predicate places. [2023-08-25 04:49:53,783 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 186 transitions, 400 flow [2023-08-25 04:49:53,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 583.6666666666666) internal successors, (1751), 3 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 04:49:53,784 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:49:53,784 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:49:53,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 04:49:53,785 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 102 more)] === [2023-08-25 04:49:53,786 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:49:53,786 INFO L85 PathProgramCache]: Analyzing trace with hash 465496407, now seen corresponding path program 1 times [2023-08-25 04:49:53,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:49:53,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776795451] [2023-08-25 04:49:53,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:49:53,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:49:53,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:49:53,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 04:49:53,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:49:53,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776795451] [2023-08-25 04:49:53,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776795451] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:49:53,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:49:53,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:49:53,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911510180] [2023-08-25 04:49:53,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:49:53,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:49:53,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:49:53,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:49:53,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:49:53,834 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 573 out of 1132 [2023-08-25 04:49:53,836 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 186 transitions, 400 flow. Second operand has 3 states, 3 states have (on average 576.6666666666666) internal successors, (1730), 3 states have internal predecessors, (1730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:49:53,836 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:49:53,836 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 573 of 1132 [2023-08-25 04:49:53,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:49:56,770 INFO L124 PetriNetUnfolderBase]: 16987/43452 cut-off events. [2023-08-25 04:49:56,771 INFO L125 PetriNetUnfolderBase]: For 4186/4262 co-relation queries the response was YES. [2023-08-25 04:49:56,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71453 conditions, 43452 events. 16987/43452 cut-off events. For 4186/4262 co-relation queries the response was YES. Maximal size of possible extension queue 1033. Compared 491271 event pairs, 3628 based on Foata normal form. 0/37369 useless extension candidates. Maximal degree in co-relation 71447. Up to 17910 conditions per place. [2023-08-25 04:49:57,020 INFO L140 encePairwiseOnDemand]: 1126/1132 looper letters, 101 selfloop transitions, 2 changer transitions 0/222 dead transitions. [2023-08-25 04:49:57,020 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 222 transitions, 701 flow [2023-08-25 04:49:57,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:49:57,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:49:57,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1822 transitions. [2023-08-25 04:49:57,023 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5365135453474676 [2023-08-25 04:49:57,024 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1822 transitions. [2023-08-25 04:49:57,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1822 transitions. [2023-08-25 04:49:57,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:49:57,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1822 transitions. [2023-08-25 04:49:57,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 607.3333333333334) internal successors, (1822), 3 states have internal predecessors, (1822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:49:57,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1132.0) internal successors, (4528), 4 states have internal predecessors, (4528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:49:57,032 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1132.0) internal successors, (4528), 4 states have internal predecessors, (4528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:49:57,032 INFO L175 Difference]: Start difference. First operand has 186 places, 186 transitions, 400 flow. Second operand 3 states and 1822 transitions. [2023-08-25 04:49:57,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 222 transitions, 701 flow [2023-08-25 04:49:57,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 222 transitions, 697 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 04:49:57,046 INFO L231 Difference]: Finished difference. Result has 184 places, 184 transitions, 406 flow [2023-08-25 04:49:57,047 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1132, PETRI_DIFFERENCE_MINUEND_FLOW=390, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=406, PETRI_PLACES=184, PETRI_TRANSITIONS=184} [2023-08-25 04:49:57,047 INFO L281 CegarLoopForPetriNet]: 215 programPoint places, -31 predicate places. [2023-08-25 04:49:57,047 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 184 transitions, 406 flow [2023-08-25 04:49:57,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 576.6666666666666) internal successors, (1730), 3 states have internal predecessors, (1730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:49:57,048 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:49:57,048 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:49:57,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 04:49:57,048 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 102 more)] === [2023-08-25 04:49:57,049 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:49:57,049 INFO L85 PathProgramCache]: Analyzing trace with hash -284798097, now seen corresponding path program 1 times [2023-08-25 04:49:57,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:49:57,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601075534] [2023-08-25 04:49:57,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:49:57,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:49:57,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:49:57,077 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 04:49:57,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:49:57,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601075534] [2023-08-25 04:49:57,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601075534] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:49:57,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:49:57,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 04:49:57,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128433757] [2023-08-25 04:49:57,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:49:57,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:49:57,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:49:57,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:49:57,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:49:57,080 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 573 out of 1132 [2023-08-25 04:49:57,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 184 transitions, 406 flow. Second operand has 3 states, 3 states have (on average 577.6666666666666) internal successors, (1733), 3 states have internal predecessors, (1733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:49:57,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:49:57,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 573 of 1132 [2023-08-25 04:49:57,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:50:01,756 INFO L124 PetriNetUnfolderBase]: 27456/66854 cut-off events. [2023-08-25 04:50:01,756 INFO L125 PetriNetUnfolderBase]: For 7294/7370 co-relation queries the response was YES. [2023-08-25 04:50:01,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113789 conditions, 66854 events. 27456/66854 cut-off events. For 7294/7370 co-relation queries the response was YES. Maximal size of possible extension queue 1542. Compared 778836 event pairs, 6487 based on Foata normal form. 5/60035 useless extension candidates. Maximal degree in co-relation 113783. Up to 27516 conditions per place. [2023-08-25 04:50:02,129 INFO L140 encePairwiseOnDemand]: 1126/1132 looper letters, 112 selfloop transitions, 2 changer transitions 0/226 dead transitions. [2023-08-25 04:50:02,129 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 226 transitions, 751 flow [2023-08-25 04:50:02,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:50:02,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:50:02,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1829 transitions. [2023-08-25 04:50:02,132 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5385747938751473 [2023-08-25 04:50:02,132 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1829 transitions. [2023-08-25 04:50:02,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1829 transitions. [2023-08-25 04:50:02,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:50:02,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1829 transitions. [2023-08-25 04:50:02,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 609.6666666666666) internal successors, (1829), 3 states have internal predecessors, (1829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:02,140 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1132.0) internal successors, (4528), 4 states have internal predecessors, (4528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:02,141 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1132.0) internal successors, (4528), 4 states have internal predecessors, (4528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:02,141 INFO L175 Difference]: Start difference. First operand has 184 places, 184 transitions, 406 flow. Second operand 3 states and 1829 transitions. [2023-08-25 04:50:02,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 226 transitions, 751 flow [2023-08-25 04:50:02,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 226 transitions, 751 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:50:02,156 INFO L231 Difference]: Finished difference. Result has 183 places, 182 transitions, 414 flow [2023-08-25 04:50:02,156 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1132, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=414, PETRI_PLACES=183, PETRI_TRANSITIONS=182} [2023-08-25 04:50:02,157 INFO L281 CegarLoopForPetriNet]: 215 programPoint places, -32 predicate places. [2023-08-25 04:50:02,157 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 182 transitions, 414 flow [2023-08-25 04:50:02,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 577.6666666666666) internal successors, (1733), 3 states have internal predecessors, (1733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:02,158 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:50:02,158 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:50:02,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 04:50:02,158 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 102 more)] === [2023-08-25 04:50:02,158 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:50:02,159 INFO L85 PathProgramCache]: Analyzing trace with hash 859764731, now seen corresponding path program 1 times [2023-08-25 04:50:02,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:50:02,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609173098] [2023-08-25 04:50:02,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:50:02,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:50:02,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:50:02,252 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 04:50:02,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:50:02,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609173098] [2023-08-25 04:50:02,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609173098] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:50:02,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:50:02,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 04:50:02,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241427137] [2023-08-25 04:50:02,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:50:02,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 04:50:02,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:50:02,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 04:50:02,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 04:50:02,256 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 495 out of 1132 [2023-08-25 04:50:02,257 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 182 transitions, 414 flow. Second operand has 5 states, 5 states have (on average 498.2) internal successors, (2491), 5 states have internal predecessors, (2491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:02,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:50:02,258 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 495 of 1132 [2023-08-25 04:50:02,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:50:11,028 INFO L124 PetriNetUnfolderBase]: 57800/115332 cut-off events. [2023-08-25 04:50:11,028 INFO L125 PetriNetUnfolderBase]: For 18299/18375 co-relation queries the response was YES. [2023-08-25 04:50:11,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 214629 conditions, 115332 events. 57800/115332 cut-off events. For 18299/18375 co-relation queries the response was YES. Maximal size of possible extension queue 2710. Compared 1266341 event pairs, 38043 based on Foata normal form. 648/104027 useless extension candidates. Maximal degree in co-relation 214622. Up to 64756 conditions per place. [2023-08-25 04:50:11,878 INFO L140 encePairwiseOnDemand]: 1127/1132 looper letters, 172 selfloop transitions, 4 changer transitions 0/269 dead transitions. [2023-08-25 04:50:11,878 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 269 transitions, 994 flow [2023-08-25 04:50:11,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 04:50:11,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 04:50:11,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2641 transitions. [2023-08-25 04:50:11,882 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4666077738515901 [2023-08-25 04:50:11,882 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2641 transitions. [2023-08-25 04:50:11,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2641 transitions. [2023-08-25 04:50:11,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:50:11,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2641 transitions. [2023-08-25 04:50:11,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 528.2) internal successors, (2641), 5 states have internal predecessors, (2641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:11,893 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1132.0) internal successors, (6792), 6 states have internal predecessors, (6792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:11,894 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1132.0) internal successors, (6792), 6 states have internal predecessors, (6792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:11,894 INFO L175 Difference]: Start difference. First operand has 183 places, 182 transitions, 414 flow. Second operand 5 states and 2641 transitions. [2023-08-25 04:50:11,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 269 transitions, 994 flow [2023-08-25 04:50:12,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 269 transitions, 994 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 04:50:12,181 INFO L231 Difference]: Finished difference. Result has 190 places, 185 transitions, 443 flow [2023-08-25 04:50:12,181 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1132, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=443, PETRI_PLACES=190, PETRI_TRANSITIONS=185} [2023-08-25 04:50:12,182 INFO L281 CegarLoopForPetriNet]: 215 programPoint places, -25 predicate places. [2023-08-25 04:50:12,182 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 185 transitions, 443 flow [2023-08-25 04:50:12,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 498.2) internal successors, (2491), 5 states have internal predecessors, (2491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:12,183 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:50:12,183 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:50:12,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 04:50:12,183 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 102 more)] === [2023-08-25 04:50:12,183 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:50:12,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1357290327, now seen corresponding path program 1 times [2023-08-25 04:50:12,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:50:12,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369653702] [2023-08-25 04:50:12,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:50:12,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:50:12,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:50:12,295 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 04:50:12,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:50:12,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369653702] [2023-08-25 04:50:12,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369653702] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:50:12,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:50:12,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 04:50:12,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163458344] [2023-08-25 04:50:12,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:50:12,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 04:50:12,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:50:12,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 04:50:12,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-25 04:50:12,299 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 489 out of 1132 [2023-08-25 04:50:12,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 185 transitions, 443 flow. Second operand has 6 states, 6 states have (on average 491.8333333333333) internal successors, (2951), 6 states have internal predecessors, (2951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:12,301 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:50:12,301 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 489 of 1132 [2023-08-25 04:50:12,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:50:26,548 INFO L124 PetriNetUnfolderBase]: 81984/173536 cut-off events. [2023-08-25 04:50:26,548 INFO L125 PetriNetUnfolderBase]: For 33090/33090 co-relation queries the response was YES. [2023-08-25 04:50:27,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322335 conditions, 173536 events. 81984/173536 cut-off events. For 33090/33090 co-relation queries the response was YES. Maximal size of possible extension queue 3987. Compared 2095020 event pairs, 52699 based on Foata normal form. 648/157218 useless extension candidates. Maximal degree in co-relation 322324. Up to 73319 conditions per place. [2023-08-25 04:50:27,894 INFO L140 encePairwiseOnDemand]: 1124/1132 looper letters, 239 selfloop transitions, 12 changer transitions 0/344 dead transitions. [2023-08-25 04:50:27,894 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 344 transitions, 1370 flow [2023-08-25 04:50:27,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 04:50:27,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 04:50:27,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3654 transitions. [2023-08-25 04:50:27,899 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46113074204946997 [2023-08-25 04:50:27,900 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3654 transitions. [2023-08-25 04:50:27,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3654 transitions. [2023-08-25 04:50:27,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:50:27,901 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3654 transitions. [2023-08-25 04:50:27,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 522.0) internal successors, (3654), 7 states have internal predecessors, (3654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:27,913 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1132.0) internal successors, (9056), 8 states have internal predecessors, (9056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:27,915 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1132.0) internal successors, (9056), 8 states have internal predecessors, (9056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:27,915 INFO L175 Difference]: Start difference. First operand has 190 places, 185 transitions, 443 flow. Second operand 7 states and 3654 transitions. [2023-08-25 04:50:27,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 344 transitions, 1370 flow [2023-08-25 04:50:28,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 344 transitions, 1366 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-25 04:50:28,074 INFO L231 Difference]: Finished difference. Result has 199 places, 193 transitions, 525 flow [2023-08-25 04:50:28,074 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1132, PETRI_DIFFERENCE_MINUEND_FLOW=439, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=525, PETRI_PLACES=199, PETRI_TRANSITIONS=193} [2023-08-25 04:50:28,075 INFO L281 CegarLoopForPetriNet]: 215 programPoint places, -16 predicate places. [2023-08-25 04:50:28,075 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 193 transitions, 525 flow [2023-08-25 04:50:28,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 491.8333333333333) internal successors, (2951), 6 states have internal predecessors, (2951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:28,076 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:50:28,076 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:50:28,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 04:50:28,076 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread3Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 102 more)] === [2023-08-25 04:50:28,076 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:50:28,076 INFO L85 PathProgramCache]: Analyzing trace with hash 78760892, now seen corresponding path program 1 times [2023-08-25 04:50:28,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:50:28,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463458234] [2023-08-25 04:50:28,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:50:28,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:50:28,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:50:28,127 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 04:50:28,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:50:28,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463458234] [2023-08-25 04:50:28,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463458234] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:50:28,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:50:28,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 04:50:28,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612546026] [2023-08-25 04:50:28,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:50:28,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 04:50:28,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:50:28,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 04:50:28,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 04:50:28,131 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 580 out of 1132 [2023-08-25 04:50:28,132 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 193 transitions, 525 flow. Second operand has 3 states, 3 states have (on average 584.6666666666666) internal successors, (1754), 3 states have internal predecessors, (1754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:28,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:50:28,132 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 580 of 1132 [2023-08-25 04:50:28,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:50:40,779 INFO L124 PetriNetUnfolderBase]: 60819/153403 cut-off events. [2023-08-25 04:50:40,779 INFO L125 PetriNetUnfolderBase]: For 74383/74671 co-relation queries the response was YES. [2023-08-25 04:50:41,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289006 conditions, 153403 events. 60819/153403 cut-off events. For 74383/74671 co-relation queries the response was YES. Maximal size of possible extension queue 3693. Compared 2052352 event pairs, 43347 based on Foata normal form. 2082/141856 useless extension candidates. Maximal degree in co-relation 288991. Up to 75885 conditions per place. [2023-08-25 04:50:42,279 INFO L140 encePairwiseOnDemand]: 1129/1132 looper letters, 113 selfloop transitions, 2 changer transitions 0/234 dead transitions. [2023-08-25 04:50:42,279 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 234 transitions, 929 flow [2023-08-25 04:50:42,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 04:50:42,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 04:50:42,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1829 transitions. [2023-08-25 04:50:42,282 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5385747938751473 [2023-08-25 04:50:42,282 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1829 transitions. [2023-08-25 04:50:42,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1829 transitions. [2023-08-25 04:50:42,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:50:42,282 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1829 transitions. [2023-08-25 04:50:42,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 609.6666666666666) internal successors, (1829), 3 states have internal predecessors, (1829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:42,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1132.0) internal successors, (4528), 4 states have internal predecessors, (4528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:42,288 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1132.0) internal successors, (4528), 4 states have internal predecessors, (4528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:42,288 INFO L175 Difference]: Start difference. First operand has 199 places, 193 transitions, 525 flow. Second operand 3 states and 1829 transitions. [2023-08-25 04:50:42,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 234 transitions, 929 flow [2023-08-25 04:50:42,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 234 transitions, 927 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-08-25 04:50:42,351 INFO L231 Difference]: Finished difference. Result has 202 places, 194 transitions, 537 flow [2023-08-25 04:50:42,351 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1132, PETRI_DIFFERENCE_MINUEND_FLOW=523, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=537, PETRI_PLACES=202, PETRI_TRANSITIONS=194} [2023-08-25 04:50:42,352 INFO L281 CegarLoopForPetriNet]: 215 programPoint places, -13 predicate places. [2023-08-25 04:50:42,352 INFO L495 AbstractCegarLoop]: Abstraction has has 202 places, 194 transitions, 537 flow [2023-08-25 04:50:42,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 584.6666666666666) internal successors, (1754), 3 states have internal predecessors, (1754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:42,352 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:50:42,352 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:50:42,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 04:50:42,352 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 102 more)] === [2023-08-25 04:50:42,353 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:50:42,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1037334675, now seen corresponding path program 1 times [2023-08-25 04:50:42,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:50:42,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762601690] [2023-08-25 04:50:42,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:50:42,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:50:42,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:50:42,508 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 04:50:42,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:50:42,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762601690] [2023-08-25 04:50:42,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762601690] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:50:42,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:50:42,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 04:50:42,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258165184] [2023-08-25 04:50:42,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:50:42,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 04:50:42,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:50:42,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 04:50:42,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-25 04:50:42,512 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 489 out of 1132 [2023-08-25 04:50:42,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 194 transitions, 537 flow. Second operand has 6 states, 6 states have (on average 492.1666666666667) internal successors, (2953), 6 states have internal predecessors, (2953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:42,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:50:42,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 489 of 1132 [2023-08-25 04:50:42,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 04:50:57,657 INFO L124 PetriNetUnfolderBase]: 94636/171581 cut-off events. [2023-08-25 04:50:57,657 INFO L125 PetriNetUnfolderBase]: For 105029/105387 co-relation queries the response was YES. [2023-08-25 04:50:58,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 378985 conditions, 171581 events. 94636/171581 cut-off events. For 105029/105387 co-relation queries the response was YES. Maximal size of possible extension queue 3506. Compared 1798408 event pairs, 67455 based on Foata normal form. 644/158174 useless extension candidates. Maximal degree in co-relation 378968. Up to 113729 conditions per place. [2023-08-25 04:50:59,254 INFO L140 encePairwiseOnDemand]: 1122/1132 looper letters, 226 selfloop transitions, 12 changer transitions 0/331 dead transitions. [2023-08-25 04:50:59,254 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 331 transitions, 1488 flow [2023-08-25 04:50:59,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 04:50:59,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 04:50:59,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 4126 transitions. [2023-08-25 04:50:59,260 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4556095406360424 [2023-08-25 04:50:59,260 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 4126 transitions. [2023-08-25 04:50:59,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 4126 transitions. [2023-08-25 04:50:59,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 04:50:59,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 4126 transitions. [2023-08-25 04:50:59,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 515.75) internal successors, (4126), 8 states have internal predecessors, (4126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:59,272 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 1132.0) internal successors, (10188), 9 states have internal predecessors, (10188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:59,273 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 1132.0) internal successors, (10188), 9 states have internal predecessors, (10188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:50:59,273 INFO L175 Difference]: Start difference. First operand has 202 places, 194 transitions, 537 flow. Second operand 8 states and 4126 transitions. [2023-08-25 04:50:59,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 331 transitions, 1488 flow [2023-08-25 04:51:00,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 331 transitions, 1478 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 04:51:00,222 INFO L231 Difference]: Finished difference. Result has 212 places, 200 transitions, 598 flow [2023-08-25 04:51:00,223 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1132, PETRI_DIFFERENCE_MINUEND_FLOW=535, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=598, PETRI_PLACES=212, PETRI_TRANSITIONS=200} [2023-08-25 04:51:00,223 INFO L281 CegarLoopForPetriNet]: 215 programPoint places, -3 predicate places. [2023-08-25 04:51:00,223 INFO L495 AbstractCegarLoop]: Abstraction has has 212 places, 200 transitions, 598 flow [2023-08-25 04:51:00,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 492.1666666666667) internal successors, (2953), 6 states have internal predecessors, (2953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:51:00,224 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 04:51:00,224 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 04:51:00,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 04:51:00,224 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 102 more)] === [2023-08-25 04:51:00,224 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 04:51:00,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1360790083, now seen corresponding path program 1 times [2023-08-25 04:51:00,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 04:51:00,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631328370] [2023-08-25 04:51:00,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 04:51:00,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 04:51:00,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 04:51:00,606 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 04:51:00,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 04:51:00,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631328370] [2023-08-25 04:51:00,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631328370] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 04:51:00,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 04:51:00,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 04:51:00,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546598960] [2023-08-25 04:51:00,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 04:51:00,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 04:51:00,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 04:51:00,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 04:51:00,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 04:51:00,610 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 467 out of 1132 [2023-08-25 04:51:00,611 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 200 transitions, 598 flow. Second operand has 6 states, 6 states have (on average 470.0) internal successors, (2820), 6 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 04:51:00,611 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 04:51:00,611 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 467 of 1132 [2023-08-25 04:51:00,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand