/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 --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -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-name-comparator-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 08:44:04,058 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 08:44:04,143 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 [2023-08-26 08:44:04,148 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 08:44:04,149 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 08:44:04,179 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 08:44:04,179 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 08:44:04,180 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 08:44:04,180 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 08:44:04,184 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 08:44:04,184 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 08:44:04,185 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 08:44:04,185 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 08:44:04,186 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 08:44:04,186 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 08:44:04,186 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 08:44:04,187 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 08:44:04,187 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 08:44:04,187 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 08:44:04,187 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 08:44:04,188 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 08:44:04,188 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 08:44:04,189 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 08:44:04,189 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 08:44:04,189 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 08:44:04,190 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 08:44:04,190 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 08:44:04,190 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 08:44:04,190 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 08:44:04,191 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 08:44:04,191 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 08:44:04,192 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 08:44:04,192 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 08:44:04,192 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 08:44:04,192 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 08:44:04,192 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 08:44:04,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 08:44:04,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 08:44:04,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 08:44:04,574 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 08:44:04,574 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 08:44:04,575 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-name-comparator-subst.wvr.c [2023-08-26 08:44:05,878 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 08:44:06,089 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 08:44:06,090 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-name-comparator-subst.wvr.c [2023-08-26 08:44:06,100 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6534dba73/6cf99eaed7714135b1710f3398901adc/FLAG03260b8d3 [2023-08-26 08:44:06,111 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6534dba73/6cf99eaed7714135b1710f3398901adc [2023-08-26 08:44:06,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 08:44:06,114 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 08:44:06,115 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 08:44:06,115 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 08:44:06,117 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 08:44:06,118 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:44:06" (1/1) ... [2023-08-26 08:44:06,119 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7968bdbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:06, skipping insertion in model container [2023-08-26 08:44:06,119 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:44:06" (1/1) ... [2023-08-26 08:44:06,140 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 08:44:06,362 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 08:44:06,372 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 08:44:06,446 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 08:44:06,466 INFO L206 MainTranslator]: Completed translation [2023-08-26 08:44:06,467 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:06 WrapperNode [2023-08-26 08:44:06,467 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 08:44:06,469 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 08:44:06,469 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 08:44:06,469 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 08:44:06,475 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:06" (1/1) ... [2023-08-26 08:44:06,498 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:06" (1/1) ... [2023-08-26 08:44:06,558 INFO L138 Inliner]: procedures = 26, calls = 45, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 876 [2023-08-26 08:44:06,559 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 08:44:06,560 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 08:44:06,560 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 08:44:06,560 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 08:44:06,568 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:06" (1/1) ... [2023-08-26 08:44:06,568 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:06" (1/1) ... [2023-08-26 08:44:06,579 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:06" (1/1) ... [2023-08-26 08:44:06,580 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:06" (1/1) ... [2023-08-26 08:44:06,603 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:06" (1/1) ... [2023-08-26 08:44:06,619 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:06" (1/1) ... [2023-08-26 08:44:06,621 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:06" (1/1) ... [2023-08-26 08:44:06,623 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:06" (1/1) ... [2023-08-26 08:44:06,627 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 08:44:06,628 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 08:44:06,628 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 08:44:06,628 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 08:44:06,645 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:06" (1/1) ... [2023-08-26 08:44:06,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 08:44:06,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 08:44:06,678 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) [2023-08-26 08:44:06,684 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 [2023-08-26 08:44:06,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 08:44:06,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 08:44:06,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 08:44:06,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 08:44:06,711 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-26 08:44:06,712 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-26 08:44:06,712 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-26 08:44:06,713 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-26 08:44:06,713 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-26 08:44:06,713 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-26 08:44:06,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 08:44:06,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-26 08:44:06,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 08:44:06,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 08:44:06,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 08:44:06,717 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 08:44:06,840 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 08:44:06,842 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 08:44:07,743 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 08:44:07,757 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 08:44:07,757 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-26 08:44:07,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:44:07 BoogieIcfgContainer [2023-08-26 08:44:07,760 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 08:44:07,762 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 08:44:07,762 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 08:44:07,765 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 08:44:07,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 08:44:06" (1/3) ... [2023-08-26 08:44:07,766 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c855579 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:44:07, skipping insertion in model container [2023-08-26 08:44:07,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:06" (2/3) ... [2023-08-26 08:44:07,766 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c855579 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:44:07, skipping insertion in model container [2023-08-26 08:44:07,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:44:07" (3/3) ... [2023-08-26 08:44:07,767 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-name-comparator-subst.wvr.c [2023-08-26 08:44:07,782 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 08:44:07,782 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 155 error locations. [2023-08-26 08:44:07,782 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 08:44:07,955 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-26 08:44:08,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1051 places, 1099 transitions, 2222 flow [2023-08-26 08:44:08,612 INFO L124 PetriNetUnfolderBase]: 58/1096 cut-off events. [2023-08-26 08:44:08,614 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-26 08:44:08,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1109 conditions, 1096 events. 58/1096 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3755 event pairs, 0 based on Foata normal form. 0/883 useless extension candidates. Maximal degree in co-relation 824. Up to 2 conditions per place. [2023-08-26 08:44:08,652 INFO L82 GeneralOperation]: Start removeDead. Operand has 1051 places, 1099 transitions, 2222 flow [2023-08-26 08:44:08,691 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1037 places, 1085 transitions, 2188 flow [2023-08-26 08:44:08,695 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 08:44:08,712 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1037 places, 1085 transitions, 2188 flow [2023-08-26 08:44:08,715 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1037 places, 1085 transitions, 2188 flow [2023-08-26 08:44:08,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1037 places, 1085 transitions, 2188 flow [2023-08-26 08:44:09,100 INFO L124 PetriNetUnfolderBase]: 58/1085 cut-off events. [2023-08-26 08:44:09,101 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-26 08:44:09,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1098 conditions, 1085 events. 58/1085 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3752 event pairs, 0 based on Foata normal form. 0/873 useless extension candidates. Maximal degree in co-relation 824. Up to 2 conditions per place. [2023-08-26 08:44:09,308 INFO L119 LiptonReduction]: Number of co-enabled transitions 459510 [2023-08-26 08:44:32,279 INFO L134 LiptonReduction]: Checked pairs total: 1078894 [2023-08-26 08:44:32,280 INFO L136 LiptonReduction]: Total number of compositions: 1312 [2023-08-26 08:44:32,301 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 08:44:32,307 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;@bae9083, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 08:44:32,307 INFO L358 AbstractCegarLoop]: Starting to check reachability of 287 error locations. [2023-08-26 08:44:32,308 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 08:44:32,308 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-26 08:44:32,308 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 08:44:32,309 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:44:32,309 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 08:44:32,310 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 283 more)] === [2023-08-26 08:44:32,313 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:44:32,314 INFO L85 PathProgramCache]: Analyzing trace with hash 4531, now seen corresponding path program 1 times [2023-08-26 08:44:32,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:44:32,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593193907] [2023-08-26 08:44:32,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:44:32,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:44:32,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:44:32,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:44:32,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:44:32,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593193907] [2023-08-26 08:44:32,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593193907] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:44:32,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:44:32,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-26 08:44:32,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379513093] [2023-08-26 08:44:32,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:44:32,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 08:44:32,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:44:32,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 08:44:32,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 08:44:32,440 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1073 out of 2411 [2023-08-26 08:44:32,446 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 281 transitions, 580 flow. Second operand has 2 states, 2 states have (on average 1073.5) internal successors, (2147), 2 states have internal predecessors, (2147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:44:32,446 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:44:32,446 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1073 of 2411 [2023-08-26 08:44:32,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:44:39,166 INFO L124 PetriNetUnfolderBase]: 48646/78104 cut-off events. [2023-08-26 08:44:39,167 INFO L125 PetriNetUnfolderBase]: For 1709/1880 co-relation queries the response was YES. [2023-08-26 08:44:39,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144818 conditions, 78104 events. 48646/78104 cut-off events. For 1709/1880 co-relation queries the response was YES. Maximal size of possible extension queue 1565. Compared 617976 event pairs, 38717 based on Foata normal form. 8679/75177 useless extension candidates. Maximal degree in co-relation 137687. Up to 65489 conditions per place. [2023-08-26 08:44:39,787 INFO L140 encePairwiseOnDemand]: 2295/2411 looper letters, 83 selfloop transitions, 0 changer transitions 0/165 dead transitions. [2023-08-26 08:44:39,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 165 transitions, 514 flow [2023-08-26 08:44:39,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 08:44:39,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 08:44:39,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2345 transitions. [2023-08-26 08:44:39,814 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4863127333056823 [2023-08-26 08:44:39,815 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 2345 transitions. [2023-08-26 08:44:39,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 2345 transitions. [2023-08-26 08:44:39,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:44:39,822 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 2345 transitions. [2023-08-26 08:44:39,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 1172.5) internal successors, (2345), 2 states have internal predecessors, (2345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:44:39,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 2411.0) internal successors, (7233), 3 states have internal predecessors, (7233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:44:39,849 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 2411.0) internal successors, (7233), 3 states have internal predecessors, (7233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:44:39,851 INFO L175 Difference]: Start difference. First operand has 276 places, 281 transitions, 580 flow. Second operand 2 states and 2345 transitions. [2023-08-26 08:44:39,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 165 transitions, 514 flow [2023-08-26 08:44:39,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 165 transitions, 502 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-26 08:44:39,877 INFO L231 Difference]: Finished difference. Result has 157 places, 165 transitions, 336 flow [2023-08-26 08:44:39,879 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2411, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=336, PETRI_PLACES=157, PETRI_TRANSITIONS=165} [2023-08-26 08:44:39,884 INFO L281 CegarLoopForPetriNet]: 276 programPoint places, -119 predicate places. [2023-08-26 08:44:39,884 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 165 transitions, 336 flow [2023-08-26 08:44:39,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1073.5) internal successors, (2147), 2 states have internal predecessors, (2147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:44:39,886 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:44:39,886 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-26 08:44:39,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 08:44:39,887 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 283 more)] === [2023-08-26 08:44:39,888 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:44:39,888 INFO L85 PathProgramCache]: Analyzing trace with hash 70241996, now seen corresponding path program 1 times [2023-08-26 08:44:39,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:44:39,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549934898] [2023-08-26 08:44:39,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:44:39,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:44:39,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:44:40,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:44:40,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:44:40,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549934898] [2023-08-26 08:44:40,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549934898] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:44:40,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:44:40,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:44:40,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182840093] [2023-08-26 08:44:40,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:44:40,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:44:40,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:44:40,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:44:40,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:44:40,054 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1040 out of 2411 [2023-08-26 08:44:40,057 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 165 transitions, 336 flow. Second operand has 3 states, 3 states have (on average 1041.6666666666667) internal successors, (3125), 3 states have internal predecessors, (3125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:44:40,057 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:44:40,057 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1040 of 2411 [2023-08-26 08:44:40,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:44:46,440 INFO L124 PetriNetUnfolderBase]: 63526/99959 cut-off events. [2023-08-26 08:44:46,440 INFO L125 PetriNetUnfolderBase]: For 446/446 co-relation queries the response was YES. [2023-08-26 08:44:46,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 186277 conditions, 99959 events. 63526/99959 cut-off events. For 446/446 co-relation queries the response was YES. Maximal size of possible extension queue 1798. Compared 782784 event pairs, 38351 based on Foata normal form. 0/86376 useless extension candidates. Maximal degree in co-relation 186274. Up to 85712 conditions per place. [2023-08-26 08:44:47,043 INFO L140 encePairwiseOnDemand]: 2399/2411 looper letters, 117 selfloop transitions, 2 changer transitions 0/185 dead transitions. [2023-08-26 08:44:47,043 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 185 transitions, 616 flow [2023-08-26 08:44:47,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:44:47,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:44:47,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3249 transitions. [2023-08-26 08:44:47,053 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44919120696806303 [2023-08-26 08:44:47,053 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3249 transitions. [2023-08-26 08:44:47,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3249 transitions. [2023-08-26 08:44:47,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:44:47,055 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3249 transitions. [2023-08-26 08:44:47,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1083.0) internal successors, (3249), 3 states have internal predecessors, (3249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:44:47,074 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2411.0) internal successors, (9644), 4 states have internal predecessors, (9644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:44:47,079 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2411.0) internal successors, (9644), 4 states have internal predecessors, (9644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:44:47,079 INFO L175 Difference]: Start difference. First operand has 157 places, 165 transitions, 336 flow. Second operand 3 states and 3249 transitions. [2023-08-26 08:44:47,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 185 transitions, 616 flow [2023-08-26 08:44:47,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 185 transitions, 616 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:44:47,085 INFO L231 Difference]: Finished difference. Result has 150 places, 157 transitions, 330 flow [2023-08-26 08:44:47,086 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2411, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=330, PETRI_PLACES=150, PETRI_TRANSITIONS=157} [2023-08-26 08:44:47,087 INFO L281 CegarLoopForPetriNet]: 276 programPoint places, -126 predicate places. [2023-08-26 08:44:47,087 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 157 transitions, 330 flow [2023-08-26 08:44:47,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1041.6666666666667) internal successors, (3125), 3 states have internal predecessors, (3125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:44:47,089 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:44:47,090 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:44:47,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 08:44:47,092 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 283 more)] === [2023-08-26 08:44:47,094 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:44:47,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1216839218, now seen corresponding path program 1 times [2023-08-26 08:44:47,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:44:47,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278353995] [2023-08-26 08:44:47,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:44:47,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:44:47,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:44:47,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:44:47,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:44:47,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278353995] [2023-08-26 08:44:47,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278353995] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:44:47,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:44:47,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:44:47,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452262578] [2023-08-26 08:44:47,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:44:47,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:44:47,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:44:47,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:44:47,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:44:47,186 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1040 out of 2411 [2023-08-26 08:44:47,190 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 157 transitions, 330 flow. Second operand has 3 states, 3 states have (on average 1042.0) internal successors, (3126), 3 states have internal predecessors, (3126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:44:47,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:44:47,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1040 of 2411 [2023-08-26 08:44:47,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:44:53,360 INFO L124 PetriNetUnfolderBase]: 63250/96883 cut-off events. [2023-08-26 08:44:53,360 INFO L125 PetriNetUnfolderBase]: For 2403/2403 co-relation queries the response was YES. [2023-08-26 08:44:53,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 184896 conditions, 96883 events. 63250/96883 cut-off events. For 2403/2403 co-relation queries the response was YES. Maximal size of possible extension queue 1726. Compared 741056 event pairs, 17763 based on Foata normal form. 0/84060 useless extension candidates. Maximal degree in co-relation 184892. Up to 84990 conditions per place. [2023-08-26 08:44:53,972 INFO L140 encePairwiseOnDemand]: 2399/2411 looper letters, 122 selfloop transitions, 2 changer transitions 0/180 dead transitions. [2023-08-26 08:44:53,972 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 180 transitions, 636 flow [2023-08-26 08:44:53,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:44:53,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:44:53,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3250 transitions. [2023-08-26 08:44:53,981 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44932946218719755 [2023-08-26 08:44:53,982 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3250 transitions. [2023-08-26 08:44:53,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3250 transitions. [2023-08-26 08:44:53,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:44:53,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3250 transitions. [2023-08-26 08:44:53,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1083.3333333333333) internal successors, (3250), 3 states have internal predecessors, (3250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:44:54,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2411.0) internal successors, (9644), 4 states have internal predecessors, (9644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:44:54,010 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2411.0) internal successors, (9644), 4 states have internal predecessors, (9644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:44:54,010 INFO L175 Difference]: Start difference. First operand has 150 places, 157 transitions, 330 flow. Second operand 3 states and 3250 transitions. [2023-08-26 08:44:54,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 180 transitions, 636 flow [2023-08-26 08:44:54,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 180 transitions, 636 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:44:54,017 INFO L231 Difference]: Finished difference. Result has 143 places, 149 transitions, 324 flow [2023-08-26 08:44:54,017 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2411, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=324, PETRI_PLACES=143, PETRI_TRANSITIONS=149} [2023-08-26 08:44:54,019 INFO L281 CegarLoopForPetriNet]: 276 programPoint places, -133 predicate places. [2023-08-26 08:44:54,019 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 149 transitions, 324 flow [2023-08-26 08:44:54,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1042.0) internal successors, (3126), 3 states have internal predecessors, (3126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:44:54,020 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:44:54,020 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:44:54,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 08:44:54,024 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 283 more)] === [2023-08-26 08:44:54,024 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:44:54,025 INFO L85 PathProgramCache]: Analyzing trace with hash -510479454, now seen corresponding path program 1 times [2023-08-26 08:44:54,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:44:54,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794887439] [2023-08-26 08:44:54,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:44:54,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:44:54,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:44:54,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:44:54,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:44:54,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794887439] [2023-08-26 08:44:54,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794887439] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:44:54,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:44:54,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:44:54,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064072257] [2023-08-26 08:44:54,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:44:54,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:44:54,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:44:54,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:44:54,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:44:54,091 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1040 out of 2411 [2023-08-26 08:44:54,094 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 149 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 1042.6666666666667) internal successors, (3128), 3 states have internal predecessors, (3128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:44:54,094 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:44:54,094 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1040 of 2411 [2023-08-26 08:44:54,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:45:00,227 INFO L124 PetriNetUnfolderBase]: 65001/95818 cut-off events. [2023-08-26 08:45:00,227 INFO L125 PetriNetUnfolderBase]: For 3604/3604 co-relation queries the response was YES. [2023-08-26 08:45:00,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187685 conditions, 95818 events. 65001/95818 cut-off events. For 3604/3604 co-relation queries the response was YES. Maximal size of possible extension queue 1654. Compared 681049 event pairs, 18055 based on Foata normal form. 0/83146 useless extension candidates. Maximal degree in co-relation 187680. Up to 87415 conditions per place. [2023-08-26 08:45:00,796 INFO L140 encePairwiseOnDemand]: 2399/2411 looper letters, 124 selfloop transitions, 2 changer transitions 0/173 dead transitions. [2023-08-26 08:45:00,796 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 173 transitions, 641 flow [2023-08-26 08:45:00,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:45:00,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:45:00,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3250 transitions. [2023-08-26 08:45:00,804 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44932946218719755 [2023-08-26 08:45:00,804 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3250 transitions. [2023-08-26 08:45:00,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3250 transitions. [2023-08-26 08:45:00,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:45:00,806 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3250 transitions. [2023-08-26 08:45:00,812 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1083.3333333333333) internal successors, (3250), 3 states have internal predecessors, (3250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:45:00,821 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2411.0) internal successors, (9644), 4 states have internal predecessors, (9644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:45:00,822 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2411.0) internal successors, (9644), 4 states have internal predecessors, (9644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:45:00,822 INFO L175 Difference]: Start difference. First operand has 143 places, 149 transitions, 324 flow. Second operand 3 states and 3250 transitions. [2023-08-26 08:45:00,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 173 transitions, 641 flow [2023-08-26 08:45:00,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 173 transitions, 641 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:45:00,826 INFO L231 Difference]: Finished difference. Result has 136 places, 141 transitions, 318 flow [2023-08-26 08:45:00,827 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2411, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=318, PETRI_PLACES=136, PETRI_TRANSITIONS=141} [2023-08-26 08:45:00,827 INFO L281 CegarLoopForPetriNet]: 276 programPoint places, -140 predicate places. [2023-08-26 08:45:00,827 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 141 transitions, 318 flow [2023-08-26 08:45:00,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1042.6666666666667) internal successors, (3128), 3 states have internal predecessors, (3128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:45:00,829 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:45:00,829 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:45:00,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 08:45:00,829 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 283 more)] === [2023-08-26 08:45:00,829 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:45:00,830 INFO L85 PathProgramCache]: Analyzing trace with hash 162432092, now seen corresponding path program 1 times [2023-08-26 08:45:00,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:45:00,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698664086] [2023-08-26 08:45:00,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:45:00,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:45:00,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:45:00,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:45:00,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:45:00,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698664086] [2023-08-26 08:45:00,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698664086] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:45:00,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:45:00,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:45:00,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072768798] [2023-08-26 08:45:00,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:45:00,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:45:00,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:45:00,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:45:00,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:45:00,914 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1055 out of 2411 [2023-08-26 08:45:00,916 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 141 transitions, 318 flow. Second operand has 3 states, 3 states have (on average 1057.6666666666667) internal successors, (3173), 3 states have internal predecessors, (3173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:45:00,916 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:45:00,916 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1055 of 2411 [2023-08-26 08:45:00,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:45:06,272 INFO L124 PetriNetUnfolderBase]: 51434/75535 cut-off events. [2023-08-26 08:45:06,272 INFO L125 PetriNetUnfolderBase]: For 2989/2989 co-relation queries the response was YES. [2023-08-26 08:45:06,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148584 conditions, 75535 events. 51434/75535 cut-off events. For 2989/2989 co-relation queries the response was YES. Maximal size of possible extension queue 1338. Compared 508021 event pairs, 40029 based on Foata normal form. 0/63854 useless extension candidates. Maximal degree in co-relation 148578. Up to 69775 conditions per place. [2023-08-26 08:45:06,736 INFO L140 encePairwiseOnDemand]: 2408/2411 looper letters, 85 selfloop transitions, 2 changer transitions 0/142 dead transitions. [2023-08-26 08:45:06,736 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 142 transitions, 494 flow [2023-08-26 08:45:06,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:45:06,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:45:06,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3250 transitions. [2023-08-26 08:45:06,744 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44932946218719755 [2023-08-26 08:45:06,744 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3250 transitions. [2023-08-26 08:45:06,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3250 transitions. [2023-08-26 08:45:06,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:45:06,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3250 transitions. [2023-08-26 08:45:06,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1083.3333333333333) internal successors, (3250), 3 states have internal predecessors, (3250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:45:06,760 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2411.0) internal successors, (9644), 4 states have internal predecessors, (9644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:45:06,761 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2411.0) internal successors, (9644), 4 states have internal predecessors, (9644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:45:06,761 INFO L175 Difference]: Start difference. First operand has 136 places, 141 transitions, 318 flow. Second operand 3 states and 3250 transitions. [2023-08-26 08:45:06,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 142 transitions, 494 flow [2023-08-26 08:45:06,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 142 transitions, 494 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:45:06,765 INFO L231 Difference]: Finished difference. Result has 139 places, 142 transitions, 330 flow [2023-08-26 08:45:06,765 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2411, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=330, PETRI_PLACES=139, PETRI_TRANSITIONS=142} [2023-08-26 08:45:06,766 INFO L281 CegarLoopForPetriNet]: 276 programPoint places, -137 predicate places. [2023-08-26 08:45:06,766 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 142 transitions, 330 flow [2023-08-26 08:45:06,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1057.6666666666667) internal successors, (3173), 3 states have internal predecessors, (3173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:45:06,767 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:45:06,767 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:45:06,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 08:45:06,767 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 283 more)] === [2023-08-26 08:45:06,768 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:45:06,768 INFO L85 PathProgramCache]: Analyzing trace with hash -413215665, now seen corresponding path program 1 times [2023-08-26 08:45:06,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:45:06,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982810242] [2023-08-26 08:45:06,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:45:06,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:45:06,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:45:06,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:45:06,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:45:06,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982810242] [2023-08-26 08:45:06,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982810242] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 08:45:06,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1962242134] [2023-08-26 08:45:06,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:45:06,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 08:45:06,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 08:45:06,893 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 08:45:06,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-26 08:45:07,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:45:07,036 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-26 08:45:07,040 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 08:45:07,084 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:45:07,085 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 08:45:07,101 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:45:07,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1962242134] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 08:45:07,102 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 08:45:07,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-26 08:45:07,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274346061] [2023-08-26 08:45:07,102 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 08:45:07,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-26 08:45:07,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:45:07,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-26 08:45:07,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-26 08:45:07,109 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1055 out of 2411 [2023-08-26 08:45:07,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 142 transitions, 330 flow. Second operand has 7 states, 7 states have (on average 1057.142857142857) internal successors, (7400), 7 states have internal predecessors, (7400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:45:07,115 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:45:07,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1055 of 2411 [2023-08-26 08:45:07,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:45:12,741 INFO L124 PetriNetUnfolderBase]: 51434/75537 cut-off events. [2023-08-26 08:45:12,741 INFO L125 PetriNetUnfolderBase]: For 2989/2989 co-relation queries the response was YES. [2023-08-26 08:45:12,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148597 conditions, 75537 events. 51434/75537 cut-off events. For 2989/2989 co-relation queries the response was YES. Maximal size of possible extension queue 1338. Compared 507848 event pairs, 40029 based on Foata normal form. 0/63856 useless extension candidates. Maximal degree in co-relation 148589. Up to 69775 conditions per place. [2023-08-26 08:45:13,219 INFO L140 encePairwiseOnDemand]: 2408/2411 looper letters, 85 selfloop transitions, 4 changer transitions 0/144 dead transitions. [2023-08-26 08:45:13,219 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 144 transitions, 516 flow [2023-08-26 08:45:13,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 08:45:13,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 08:45:13,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5363 transitions. [2023-08-26 08:45:13,230 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44487764413106595 [2023-08-26 08:45:13,230 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 5363 transitions. [2023-08-26 08:45:13,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 5363 transitions. [2023-08-26 08:45:13,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:45:13,233 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 5363 transitions. [2023-08-26 08:45:13,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 1072.6) internal successors, (5363), 5 states have internal predecessors, (5363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:45:13,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 2411.0) internal successors, (14466), 6 states have internal predecessors, (14466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:45:13,257 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 2411.0) internal successors, (14466), 6 states have internal predecessors, (14466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:45:13,257 INFO L175 Difference]: Start difference. First operand has 139 places, 142 transitions, 330 flow. Second operand 5 states and 5363 transitions. [2023-08-26 08:45:13,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 144 transitions, 516 flow [2023-08-26 08:45:13,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 144 transitions, 512 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-26 08:45:13,261 INFO L231 Difference]: Finished difference. Result has 144 places, 144 transitions, 352 flow [2023-08-26 08:45:13,261 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2411, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=352, PETRI_PLACES=144, PETRI_TRANSITIONS=144} [2023-08-26 08:45:13,262 INFO L281 CegarLoopForPetriNet]: 276 programPoint places, -132 predicate places. [2023-08-26 08:45:13,262 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 144 transitions, 352 flow [2023-08-26 08:45:13,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1057.142857142857) internal successors, (7400), 7 states have internal predecessors, (7400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:45:13,264 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:45:13,264 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:45:13,282 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-26 08:45:13,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-08-26 08:45:13,469 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 283 more)] === [2023-08-26 08:45:13,469 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:45:13,470 INFO L85 PathProgramCache]: Analyzing trace with hash -225140241, now seen corresponding path program 2 times [2023-08-26 08:45:13,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:45:13,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264703176] [2023-08-26 08:45:13,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:45:13,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:45:13,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:45:13,912 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-26 08:45:13,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:45:13,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264703176] [2023-08-26 08:45:13,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264703176] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:45:13,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:45:13,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:45:13,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816938070] [2023-08-26 08:45:13,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:45:13,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 08:45:13,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:45:13,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 08:45:13,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 08:45:13,919 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1025 out of 2411 [2023-08-26 08:45:13,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 144 transitions, 352 flow. Second operand has 6 states, 6 states have (on average 1027.1666666666667) internal successors, (6163), 6 states have internal predecessors, (6163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:45:13,923 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:45:13,923 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1025 of 2411 [2023-08-26 08:45:13,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:45:41,653 INFO L124 PetriNetUnfolderBase]: 303580/406843 cut-off events. [2023-08-26 08:45:41,654 INFO L125 PetriNetUnfolderBase]: For 11509/11509 co-relation queries the response was YES. [2023-08-26 08:45:42,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 822171 conditions, 406843 events. 303580/406843 cut-off events. For 11509/11509 co-relation queries the response was YES. Maximal size of possible extension queue 4867. Compared 2798275 event pairs, 29785 based on Foata normal form. 0/347220 useless extension candidates. Maximal degree in co-relation 822161. Up to 147556 conditions per place. [2023-08-26 08:45:44,199 INFO L140 encePairwiseOnDemand]: 2406/2411 looper letters, 453 selfloop transitions, 4 changer transitions 0/483 dead transitions. [2023-08-26 08:45:44,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 483 transitions, 2004 flow [2023-08-26 08:45:44,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 08:45:44,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 08:45:44,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6590 transitions. [2023-08-26 08:45:44,212 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45555094704825105 [2023-08-26 08:45:44,212 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 6590 transitions. [2023-08-26 08:45:44,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6590 transitions. [2023-08-26 08:45:44,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:45:44,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 6590 transitions. [2023-08-26 08:45:44,226 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 1098.3333333333333) internal successors, (6590), 6 states have internal predecessors, (6590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:45:44,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 2411.0) internal successors, (16877), 7 states have internal predecessors, (16877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:45:44,247 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 2411.0) internal successors, (16877), 7 states have internal predecessors, (16877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:45:44,247 INFO L175 Difference]: Start difference. First operand has 144 places, 144 transitions, 352 flow. Second operand 6 states and 6590 transitions. [2023-08-26 08:45:44,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 483 transitions, 2004 flow [2023-08-26 08:45:44,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 483 transitions, 1994 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-08-26 08:45:44,255 INFO L231 Difference]: Finished difference. Result has 147 places, 143 transitions, 348 flow [2023-08-26 08:45:44,255 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2411, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=348, PETRI_PLACES=147, PETRI_TRANSITIONS=143} [2023-08-26 08:45:44,256 INFO L281 CegarLoopForPetriNet]: 276 programPoint places, -129 predicate places. [2023-08-26 08:45:44,256 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 143 transitions, 348 flow [2023-08-26 08:45:44,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1027.1666666666667) internal successors, (6163), 6 states have internal predecessors, (6163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:45:44,258 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:45:44,258 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:45:44,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 08:45:44,258 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 283 more)] === [2023-08-26 08:45:44,259 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:45:44,259 INFO L85 PathProgramCache]: Analyzing trace with hash 974306651, now seen corresponding path program 1 times [2023-08-26 08:45:44,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:45:44,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259423511] [2023-08-26 08:45:44,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:45:44,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:45:44,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:45:44,295 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-26 08:45:44,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:45:44,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259423511] [2023-08-26 08:45:44,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259423511] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:45:44,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:45:44,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:45:44,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164431883] [2023-08-26 08:45:44,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:45:44,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:45:44,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:45:44,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:45:44,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:45:44,300 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1061 out of 2411 [2023-08-26 08:45:44,302 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 143 transitions, 348 flow. Second operand has 3 states, 3 states have (on average 1064.3333333333333) internal successors, (3193), 3 states have internal predecessors, (3193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:45:44,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:45:44,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1061 of 2411 [2023-08-26 08:45:44,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:45:49,925 INFO L124 PetriNetUnfolderBase]: 54946/82071 cut-off events. [2023-08-26 08:45:49,926 INFO L125 PetriNetUnfolderBase]: For 12278/12278 co-relation queries the response was YES. [2023-08-26 08:45:50,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169331 conditions, 82071 events. 54946/82071 cut-off events. For 12278/12278 co-relation queries the response was YES. Maximal size of possible extension queue 1565. Compared 580255 event pairs, 15827 based on Foata normal form. 0/69494 useless extension candidates. Maximal degree in co-relation 169320. Up to 69600 conditions per place. [2023-08-26 08:45:50,716 INFO L140 encePairwiseOnDemand]: 2405/2411 looper letters, 127 selfloop transitions, 3 changer transitions 0/181 dead transitions. [2023-08-26 08:45:50,716 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 181 transitions, 706 flow [2023-08-26 08:45:50,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:45:50,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:45:50,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3307 transitions. [2023-08-26 08:45:50,721 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45721000967786535 [2023-08-26 08:45:50,721 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3307 transitions. [2023-08-26 08:45:50,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3307 transitions. [2023-08-26 08:45:50,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:45:50,723 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3307 transitions. [2023-08-26 08:45:50,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1102.3333333333333) internal successors, (3307), 3 states have internal predecessors, (3307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:45:50,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2411.0) internal successors, (9644), 4 states have internal predecessors, (9644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:45:50,737 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2411.0) internal successors, (9644), 4 states have internal predecessors, (9644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:45:50,737 INFO L175 Difference]: Start difference. First operand has 147 places, 143 transitions, 348 flow. Second operand 3 states and 3307 transitions. [2023-08-26 08:45:50,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 181 transitions, 706 flow [2023-08-26 08:45:50,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 181 transitions, 697 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-26 08:45:50,780 INFO L231 Difference]: Finished difference. Result has 143 places, 143 transitions, 356 flow [2023-08-26 08:45:50,780 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2411, PETRI_DIFFERENCE_MINUEND_FLOW=335, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=356, PETRI_PLACES=143, PETRI_TRANSITIONS=143} [2023-08-26 08:45:50,781 INFO L281 CegarLoopForPetriNet]: 276 programPoint places, -133 predicate places. [2023-08-26 08:45:50,781 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 143 transitions, 356 flow [2023-08-26 08:45:50,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1064.3333333333333) internal successors, (3193), 3 states have internal predecessors, (3193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:45:50,782 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:45:50,782 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:45:50,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 08:45:50,783 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err42ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 283 more)] === [2023-08-26 08:45:50,783 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:45:50,783 INFO L85 PathProgramCache]: Analyzing trace with hash -860997803, now seen corresponding path program 1 times [2023-08-26 08:45:50,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:45:50,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262707174] [2023-08-26 08:45:50,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:45:50,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:45:50,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:45:50,840 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-26 08:45:50,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:45:50,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262707174] [2023-08-26 08:45:50,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262707174] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:45:50,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:45:50,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:45:50,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515870170] [2023-08-26 08:45:50,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:45:50,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:45:50,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:45:50,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:45:50,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:45:50,849 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1038 out of 2411 [2023-08-26 08:45:50,851 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 143 transitions, 356 flow. Second operand has 3 states, 3 states have (on average 1042.0) internal successors, (3126), 3 states have internal predecessors, (3126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:45:50,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:45:50,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1038 of 2411 [2023-08-26 08:45:50,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:45:57,055 INFO L124 PetriNetUnfolderBase]: 54946/81619 cut-off events. [2023-08-26 08:45:57,056 INFO L125 PetriNetUnfolderBase]: For 6007/6007 co-relation queries the response was YES. [2023-08-26 08:45:57,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163651 conditions, 81619 events. 54946/81619 cut-off events. For 6007/6007 co-relation queries the response was YES. Maximal size of possible extension queue 1549. Compared 572593 event pairs, 39275 based on Foata normal form. 0/71920 useless extension candidates. Maximal degree in co-relation 163640. Up to 69712 conditions per place. [2023-08-26 08:45:57,624 INFO L140 encePairwiseOnDemand]: 2407/2411 looper letters, 142 selfloop transitions, 3 changer transitions 0/195 dead transitions. [2023-08-26 08:45:57,624 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 195 transitions, 769 flow [2023-08-26 08:45:57,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:45:57,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:45:57,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3248 transitions. [2023-08-26 08:45:57,629 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4490529517489285 [2023-08-26 08:45:57,629 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3248 transitions. [2023-08-26 08:45:57,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3248 transitions. [2023-08-26 08:45:57,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:45:57,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3248 transitions. [2023-08-26 08:45:57,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1082.6666666666667) internal successors, (3248), 3 states have internal predecessors, (3248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:45:57,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2411.0) internal successors, (9644), 4 states have internal predecessors, (9644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:45:57,642 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2411.0) internal successors, (9644), 4 states have internal predecessors, (9644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:45:57,642 INFO L175 Difference]: Start difference. First operand has 143 places, 143 transitions, 356 flow. Second operand 3 states and 3248 transitions. [2023-08-26 08:45:57,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 195 transitions, 769 flow [2023-08-26 08:45:57,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 195 transitions, 769 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:45:57,647 INFO L231 Difference]: Finished difference. Result has 144 places, 142 transitions, 360 flow [2023-08-26 08:45:57,648 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2411, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=360, PETRI_PLACES=144, PETRI_TRANSITIONS=142} [2023-08-26 08:45:57,648 INFO L281 CegarLoopForPetriNet]: 276 programPoint places, -132 predicate places. [2023-08-26 08:45:57,648 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 142 transitions, 360 flow [2023-08-26 08:45:57,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1042.0) internal successors, (3126), 3 states have internal predecessors, (3126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:45:57,649 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:45:57,649 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:45:57,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-26 08:45:57,649 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 283 more)] === [2023-08-26 08:45:57,650 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:45:57,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1130547375, now seen corresponding path program 1 times [2023-08-26 08:45:57,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:45:57,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955075519] [2023-08-26 08:45:57,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:45:57,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:45:57,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:45:58,022 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-26 08:45:58,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:45:58,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955075519] [2023-08-26 08:45:58,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955075519] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:45:58,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:45:58,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:45:58,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721608030] [2023-08-26 08:45:58,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:45:58,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 08:45:58,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:45:58,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 08:45:58,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 08:45:58,028 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1019 out of 2411 [2023-08-26 08:45:58,032 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 142 transitions, 360 flow. Second operand has 6 states, 6 states have (on average 1021.6666666666666) internal successors, (6130), 6 states have internal predecessors, (6130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:45:58,032 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:45:58,032 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1019 of 2411 [2023-08-26 08:45:58,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:46:29,037 INFO L124 PetriNetUnfolderBase]: 314890/422747 cut-off events. [2023-08-26 08:46:29,037 INFO L125 PetriNetUnfolderBase]: For 37079/37079 co-relation queries the response was YES. [2023-08-26 08:46:30,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 898157 conditions, 422747 events. 314890/422747 cut-off events. For 37079/37079 co-relation queries the response was YES. Maximal size of possible extension queue 5130. Compared 2831915 event pairs, 124067 based on Foata normal form. 0/380520 useless extension candidates. Maximal degree in co-relation 898145. Up to 211980 conditions per place. [2023-08-26 08:46:31,818 INFO L140 encePairwiseOnDemand]: 2405/2411 looper letters, 371 selfloop transitions, 5 changer transitions 0/397 dead transitions. [2023-08-26 08:46:31,818 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 397 transitions, 1690 flow [2023-08-26 08:46:31,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 08:46:31,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 08:46:31,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6482 transitions. [2023-08-26 08:46:31,995 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44808516521498687 [2023-08-26 08:46:31,996 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 6482 transitions. [2023-08-26 08:46:31,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6482 transitions. [2023-08-26 08:46:31,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:46:31,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 6482 transitions. [2023-08-26 08:46:32,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 1080.3333333333333) internal successors, (6482), 6 states have internal predecessors, (6482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:46:32,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 2411.0) internal successors, (16877), 7 states have internal predecessors, (16877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:46:32,014 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 2411.0) internal successors, (16877), 7 states have internal predecessors, (16877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:46:32,014 INFO L175 Difference]: Start difference. First operand has 144 places, 142 transitions, 360 flow. Second operand 6 states and 6482 transitions. [2023-08-26 08:46:32,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 397 transitions, 1690 flow [2023-08-26 08:46:34,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 397 transitions, 1660 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 08:46:34,256 INFO L231 Difference]: Finished difference. Result has 146 places, 141 transitions, 362 flow [2023-08-26 08:46:34,256 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2411, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=362, PETRI_PLACES=146, PETRI_TRANSITIONS=141} [2023-08-26 08:46:34,257 INFO L281 CegarLoopForPetriNet]: 276 programPoint places, -130 predicate places. [2023-08-26 08:46:34,257 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 141 transitions, 362 flow [2023-08-26 08:46:34,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1021.6666666666666) internal successors, (6130), 6 states have internal predecessors, (6130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:46:34,258 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:46:34,258 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:46:34,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-26 08:46:34,258 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 283 more)] === [2023-08-26 08:46:34,258 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:46:34,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1500260344, now seen corresponding path program 1 times [2023-08-26 08:46:34,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:46:34,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359107579] [2023-08-26 08:46:34,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:46:34,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:46:34,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:46:34,564 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-26 08:46:34,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:46:34,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359107579] [2023-08-26 08:46:34,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359107579] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:46:34,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:46:34,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:46:34,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019897324] [2023-08-26 08:46:34,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:46:34,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 08:46:34,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:46:34,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 08:46:34,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 08:46:34,570 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1019 out of 2411 [2023-08-26 08:46:34,573 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 141 transitions, 362 flow. Second operand has 6 states, 6 states have (on average 1022.0) internal successors, (6132), 6 states have internal predecessors, (6132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:46:34,573 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:46:34,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1019 of 2411 [2023-08-26 08:46:34,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:47:03,664 INFO L124 PetriNetUnfolderBase]: 303498/407653 cut-off events. [2023-08-26 08:47:03,665 INFO L125 PetriNetUnfolderBase]: For 40379/40379 co-relation queries the response was YES. [2023-08-26 08:47:05,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 871886 conditions, 407653 events. 303498/407653 cut-off events. For 40379/40379 co-relation queries the response was YES. Maximal size of possible extension queue 4940. Compared 2711113 event pairs, 118859 based on Foata normal form. 0/365920 useless extension candidates. Maximal degree in co-relation 871874. Up to 197220 conditions per place. [2023-08-26 08:47:06,368 INFO L140 encePairwiseOnDemand]: 2405/2411 looper letters, 390 selfloop transitions, 5 changer transitions 0/416 dead transitions. [2023-08-26 08:47:06,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 416 transitions, 1798 flow [2023-08-26 08:47:06,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 08:47:06,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 08:47:06,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6497 transitions. [2023-08-26 08:47:06,377 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4491220793584958 [2023-08-26 08:47:06,377 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 6497 transitions. [2023-08-26 08:47:06,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6497 transitions. [2023-08-26 08:47:06,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:47:06,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 6497 transitions. [2023-08-26 08:47:06,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 1082.8333333333333) internal successors, (6497), 6 states have internal predecessors, (6497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:47:06,396 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 2411.0) internal successors, (16877), 7 states have internal predecessors, (16877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:47:06,398 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 2411.0) internal successors, (16877), 7 states have internal predecessors, (16877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:47:06,398 INFO L175 Difference]: Start difference. First operand has 146 places, 141 transitions, 362 flow. Second operand 6 states and 6497 transitions. [2023-08-26 08:47:06,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 416 transitions, 1798 flow [2023-08-26 08:47:06,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 416 transitions, 1748 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-26 08:47:06,588 INFO L231 Difference]: Finished difference. Result has 145 places, 140 transitions, 360 flow [2023-08-26 08:47:06,588 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2411, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=360, PETRI_PLACES=145, PETRI_TRANSITIONS=140} [2023-08-26 08:47:06,588 INFO L281 CegarLoopForPetriNet]: 276 programPoint places, -131 predicate places. [2023-08-26 08:47:06,589 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 140 transitions, 360 flow [2023-08-26 08:47:06,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1022.0) internal successors, (6132), 6 states have internal predecessors, (6132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:47:06,590 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:47:06,590 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:47:06,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-26 08:47:06,590 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread3Err14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 283 more)] === [2023-08-26 08:47:06,590 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:47:06,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1401718953, now seen corresponding path program 1 times [2023-08-26 08:47:06,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:47:06,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166142550] [2023-08-26 08:47:06,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:47:06,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:47:06,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:47:06,890 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-26 08:47:06,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:47:06,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166142550] [2023-08-26 08:47:06,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166142550] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:47:06,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:47:06,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:47:06,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788461466] [2023-08-26 08:47:06,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:47:06,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 08:47:06,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:47:06,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 08:47:06,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 08:47:06,896 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1019 out of 2411 [2023-08-26 08:47:06,899 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 140 transitions, 360 flow. Second operand has 6 states, 6 states have (on average 1022.1666666666666) internal successors, (6133), 6 states have internal predecessors, (6133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:47:06,900 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:47:06,900 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1019 of 2411 [2023-08-26 08:47:06,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:47:37,111 INFO L124 PetriNetUnfolderBase]: 291902/391999 cut-off events. [2023-08-26 08:47:37,111 INFO L125 PetriNetUnfolderBase]: For 36273/36273 co-relation queries the response was YES. [2023-08-26 08:47:38,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 839528 conditions, 391999 events. 291902/391999 cut-off events. For 36273/36273 co-relation queries the response was YES. Maximal size of possible extension queue 4770. Compared 2581968 event pairs, 107221 based on Foata normal form. 0/355083 useless extension candidates. Maximal degree in co-relation 839516. Up to 177210 conditions per place. [2023-08-26 08:47:39,737 INFO L140 encePairwiseOnDemand]: 2405/2411 looper letters, 413 selfloop transitions, 5 changer transitions 0/439 dead transitions. [2023-08-26 08:47:39,738 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 439 transitions, 1902 flow [2023-08-26 08:47:39,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 08:47:39,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 08:47:39,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6516 transitions. [2023-08-26 08:47:39,747 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45043550394027376 [2023-08-26 08:47:39,748 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 6516 transitions. [2023-08-26 08:47:39,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6516 transitions. [2023-08-26 08:47:39,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:47:39,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 6516 transitions. [2023-08-26 08:47:39,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 1086.0) internal successors, (6516), 6 states have internal predecessors, (6516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:47:39,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 2411.0) internal successors, (16877), 7 states have internal predecessors, (16877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:47:39,766 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 2411.0) internal successors, (16877), 7 states have internal predecessors, (16877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:47:39,767 INFO L175 Difference]: Start difference. First operand has 145 places, 140 transitions, 360 flow. Second operand 6 states and 6516 transitions. [2023-08-26 08:47:39,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 439 transitions, 1902 flow [2023-08-26 08:47:40,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 439 transitions, 1852 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-26 08:47:40,493 INFO L231 Difference]: Finished difference. Result has 144 places, 139 transitions, 358 flow [2023-08-26 08:47:40,493 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2411, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=358, PETRI_PLACES=144, PETRI_TRANSITIONS=139} [2023-08-26 08:47:40,494 INFO L281 CegarLoopForPetriNet]: 276 programPoint places, -132 predicate places. [2023-08-26 08:47:40,494 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 139 transitions, 358 flow [2023-08-26 08:47:40,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1022.1666666666666) internal successors, (6133), 6 states have internal predecessors, (6133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:47:40,495 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:47:40,495 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:47:40,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-26 08:47:40,495 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 283 more)] === [2023-08-26 08:47:40,495 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:47:40,496 INFO L85 PathProgramCache]: Analyzing trace with hash 36313683, now seen corresponding path program 1 times [2023-08-26 08:47:40,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:47:40,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86612321] [2023-08-26 08:47:40,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:47:40,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:47:40,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:47:40,895 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-26 08:47:40,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:47:40,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86612321] [2023-08-26 08:47:40,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86612321] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:47:40,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:47:40,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:47:40,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921472460] [2023-08-26 08:47:40,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:47:40,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 08:47:40,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:47:40,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 08:47:40,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 08:47:40,900 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1025 out of 2411 [2023-08-26 08:47:40,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 139 transitions, 358 flow. Second operand has 6 states, 6 states have (on average 1029.1666666666667) internal successors, (6175), 6 states have internal predecessors, (6175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:47:40,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:47:40,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1025 of 2411 [2023-08-26 08:47:40,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:48:09,151 INFO L124 PetriNetUnfolderBase]: 279891/376011 cut-off events. [2023-08-26 08:48:09,151 INFO L125 PetriNetUnfolderBase]: For 26388/26388 co-relation queries the response was YES. [2023-08-26 08:48:10,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 806601 conditions, 376011 events. 279891/376011 cut-off events. For 26388/26388 co-relation queries the response was YES. Maximal size of possible extension queue 4684. Compared 2467665 event pairs, 220672 based on Foata normal form. 0/340766 useless extension candidates. Maximal degree in co-relation 806589. Up to 360005 conditions per place. [2023-08-26 08:48:11,523 INFO L140 encePairwiseOnDemand]: 2406/2411 looper letters, 332 selfloop transitions, 4 changer transitions 0/358 dead transitions. [2023-08-26 08:48:11,523 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 358 transitions, 1564 flow [2023-08-26 08:48:11,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 08:48:11,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 08:48:11,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6470 transitions. [2023-08-26 08:48:11,531 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44725563390017975 [2023-08-26 08:48:11,531 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 6470 transitions. [2023-08-26 08:48:11,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6470 transitions. [2023-08-26 08:48:11,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:48:11,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 6470 transitions. [2023-08-26 08:48:11,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 1078.3333333333333) internal successors, (6470), 6 states have internal predecessors, (6470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:11,547 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 2411.0) internal successors, (16877), 7 states have internal predecessors, (16877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:11,549 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 2411.0) internal successors, (16877), 7 states have internal predecessors, (16877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:11,549 INFO L175 Difference]: Start difference. First operand has 144 places, 139 transitions, 358 flow. Second operand 6 states and 6470 transitions. [2023-08-26 08:48:11,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 358 transitions, 1564 flow [2023-08-26 08:48:13,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 358 transitions, 1514 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-26 08:48:13,962 INFO L231 Difference]: Finished difference. Result has 143 places, 138 transitions, 354 flow [2023-08-26 08:48:13,962 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2411, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=354, PETRI_PLACES=143, PETRI_TRANSITIONS=138} [2023-08-26 08:48:13,963 INFO L281 CegarLoopForPetriNet]: 276 programPoint places, -133 predicate places. [2023-08-26 08:48:13,963 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 138 transitions, 354 flow [2023-08-26 08:48:13,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1029.1666666666667) internal successors, (6175), 6 states have internal predecessors, (6175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:13,964 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:48:13,964 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:48:13,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-26 08:48:13,964 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 283 more)] === [2023-08-26 08:48:13,964 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:48:13,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1831310172, now seen corresponding path program 1 times [2023-08-26 08:48:13,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:48:13,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797770541] [2023-08-26 08:48:13,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:48:13,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:48:13,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:48:14,340 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-26 08:48:14,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:48:14,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797770541] [2023-08-26 08:48:14,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797770541] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:48:14,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:48:14,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:48:14,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932684700] [2023-08-26 08:48:14,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:48:14,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 08:48:14,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:48:14,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 08:48:14,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 08:48:14,347 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1025 out of 2411 [2023-08-26 08:48:14,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 138 transitions, 354 flow. Second operand has 6 states, 6 states have (on average 1031.1666666666667) internal successors, (6187), 6 states have internal predecessors, (6187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:14,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:48:14,355 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1025 of 2411 [2023-08-26 08:48:14,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:48:43,274 INFO L124 PetriNetUnfolderBase]: 279856/376035 cut-off events. [2023-08-26 08:48:43,274 INFO L125 PetriNetUnfolderBase]: For 24123/24123 co-relation queries the response was YES. [2023-08-26 08:48:44,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 790341 conditions, 376035 events. 279856/376035 cut-off events. For 24123/24123 co-relation queries the response was YES. Maximal size of possible extension queue 4684. Compared 2467974 event pairs, 226606 based on Foata normal form. 0/340824 useless extension candidates. Maximal degree in co-relation 790329. Up to 370396 conditions per place. [2023-08-26 08:48:45,836 INFO L140 encePairwiseOnDemand]: 2406/2411 looper letters, 219 selfloop transitions, 4 changer transitions 0/245 dead transitions. [2023-08-26 08:48:45,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 245 transitions, 1042 flow [2023-08-26 08:48:45,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 08:48:45,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 08:48:45,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6361 transitions. [2023-08-26 08:48:45,843 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4397207244573483 [2023-08-26 08:48:45,843 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 6361 transitions. [2023-08-26 08:48:45,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6361 transitions. [2023-08-26 08:48:45,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:48:45,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 6361 transitions. [2023-08-26 08:48:45,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 1060.1666666666667) internal successors, (6361), 6 states have internal predecessors, (6361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:45,858 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 2411.0) internal successors, (16877), 7 states have internal predecessors, (16877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:45,859 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 2411.0) internal successors, (16877), 7 states have internal predecessors, (16877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:45,860 INFO L175 Difference]: Start difference. First operand has 143 places, 138 transitions, 354 flow. Second operand 6 states and 6361 transitions. [2023-08-26 08:48:45,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 245 transitions, 1042 flow [2023-08-26 08:48:45,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 245 transitions, 1035 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-26 08:48:45,904 INFO L231 Difference]: Finished difference. Result has 143 places, 137 transitions, 353 flow [2023-08-26 08:48:45,904 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2411, PETRI_DIFFERENCE_MINUEND_FLOW=345, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=353, PETRI_PLACES=143, PETRI_TRANSITIONS=137} [2023-08-26 08:48:45,905 INFO L281 CegarLoopForPetriNet]: 276 programPoint places, -133 predicate places. [2023-08-26 08:48:45,905 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 137 transitions, 353 flow [2023-08-26 08:48:45,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1031.1666666666667) internal successors, (6187), 6 states have internal predecessors, (6187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:45,906 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:48:45,906 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:48:45,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-26 08:48:45,906 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 283 more)] === [2023-08-26 08:48:45,906 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:48:45,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1677190493, now seen corresponding path program 1 times [2023-08-26 08:48:45,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:48:45,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741194443] [2023-08-26 08:48:45,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:48:45,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:48:45,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:48:46,614 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-26 08:48:46,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:48:46,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741194443] [2023-08-26 08:48:46,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741194443] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:48:46,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:48:46,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-26 08:48:46,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415305454] [2023-08-26 08:48:46,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:48:46,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-26 08:48:46,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:48:46,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-26 08:48:46,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-08-26 08:48:46,623 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 982 out of 2411 [2023-08-26 08:48:46,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 137 transitions, 353 flow. Second operand has 10 states, 10 states have (on average 985.3) internal successors, (9853), 10 states have internal predecessors, (9853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:48:46,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:48:46,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 982 of 2411 [2023-08-26 08:48:46,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:49:09,193 INFO L124 PetriNetUnfolderBase]: 187215/285436 cut-off events. [2023-08-26 08:49:09,193 INFO L125 PetriNetUnfolderBase]: For 13428/13460 co-relation queries the response was YES. [2023-08-26 08:49:10,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 560756 conditions, 285436 events. 187215/285436 cut-off events. For 13428/13460 co-relation queries the response was YES. Maximal size of possible extension queue 4507. Compared 2404881 event pairs, 10530 based on Foata normal form. 8/258010 useless extension candidates. Maximal degree in co-relation 560744. Up to 46318 conditions per place. [2023-08-26 08:49:11,208 INFO L140 encePairwiseOnDemand]: 2382/2411 looper letters, 706 selfloop transitions, 161 changer transitions 27/939 dead transitions. [2023-08-26 08:49:11,208 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 939 transitions, 3970 flow [2023-08-26 08:49:11,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-26 08:49:11,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-26 08:49:11,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18542 transitions. [2023-08-26 08:49:11,220 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42725471219871886 [2023-08-26 08:49:11,220 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 18542 transitions. [2023-08-26 08:49:11,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 18542 transitions. [2023-08-26 08:49:11,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:49:11,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 18542 transitions. [2023-08-26 08:49:11,232 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 1030.111111111111) internal successors, (18542), 18 states have internal predecessors, (18542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:49:11,258 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 2411.0) internal successors, (45809), 19 states have internal predecessors, (45809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:49:11,262 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 2411.0) internal successors, (45809), 19 states have internal predecessors, (45809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:49:11,262 INFO L175 Difference]: Start difference. First operand has 143 places, 137 transitions, 353 flow. Second operand 18 states and 18542 transitions. [2023-08-26 08:49:11,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 939 transitions, 3970 flow [2023-08-26 08:49:11,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 939 transitions, 3945 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-26 08:49:11,278 INFO L231 Difference]: Finished difference. Result has 167 places, 316 transitions, 1435 flow [2023-08-26 08:49:11,279 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2411, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1435, PETRI_PLACES=167, PETRI_TRANSITIONS=316} [2023-08-26 08:49:11,279 INFO L281 CegarLoopForPetriNet]: 276 programPoint places, -109 predicate places. [2023-08-26 08:49:11,279 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 316 transitions, 1435 flow [2023-08-26 08:49:11,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 985.3) internal successors, (9853), 10 states have internal predecessors, (9853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:49:11,280 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:49:11,280 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:49:11,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-26 08:49:11,281 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 283 more)] === [2023-08-26 08:49:11,281 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:49:11,281 INFO L85 PathProgramCache]: Analyzing trace with hash 555259101, now seen corresponding path program 2 times [2023-08-26 08:49:11,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:49:11,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179354912] [2023-08-26 08:49:11,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:49:11,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:49:11,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:49:11,993 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-26 08:49:11,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:49:11,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179354912] [2023-08-26 08:49:11,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179354912] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:49:11,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:49:11,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-26 08:49:11,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649108881] [2023-08-26 08:49:11,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:49:11,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-26 08:49:11,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:49:11,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-26 08:49:11,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-08-26 08:49:12,001 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 982 out of 2411 [2023-08-26 08:49:12,006 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 316 transitions, 1435 flow. Second operand has 10 states, 10 states have (on average 985.3) internal successors, (9853), 10 states have internal predecessors, (9853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:49:12,006 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:49:12,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 982 of 2411 [2023-08-26 08:49:12,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:50:08,622 INFO L124 PetriNetUnfolderBase]: 328729/500388 cut-off events. [2023-08-26 08:50:08,622 INFO L125 PetriNetUnfolderBase]: For 232556/237160 co-relation queries the response was YES. [2023-08-26 08:50:11,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1207727 conditions, 500388 events. 328729/500388 cut-off events. For 232556/237160 co-relation queries the response was YES. Maximal size of possible extension queue 7692. Compared 4456421 event pairs, 17013 based on Foata normal form. 4153/471635 useless extension candidates. Maximal degree in co-relation 1207704. Up to 57203 conditions per place. [2023-08-26 08:50:13,600 INFO L140 encePairwiseOnDemand]: 2382/2411 looper letters, 952 selfloop transitions, 377 changer transitions 27/1401 dead transitions. [2023-08-26 08:50:13,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 1401 transitions, 7461 flow [2023-08-26 08:50:13,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-08-26 08:50:13,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-08-26 08:50:13,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24668 transitions. [2023-08-26 08:50:13,618 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42630996820129957 [2023-08-26 08:50:13,618 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 24668 transitions. [2023-08-26 08:50:13,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 24668 transitions. [2023-08-26 08:50:13,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:50:13,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 24668 transitions. [2023-08-26 08:50:13,642 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 1027.8333333333333) internal successors, (24668), 24 states have internal predecessors, (24668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:50:13,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 2411.0) internal successors, (60275), 25 states have internal predecessors, (60275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:50:13,689 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 2411.0) internal successors, (60275), 25 states have internal predecessors, (60275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:50:13,690 INFO L175 Difference]: Start difference. First operand has 167 places, 316 transitions, 1435 flow. Second operand 24 states and 24668 transitions. [2023-08-26 08:50:13,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 1401 transitions, 7461 flow [2023-08-26 08:50:59,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 1401 transitions, 7461 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:50:59,375 INFO L231 Difference]: Finished difference. Result has 204 places, 567 transitions, 4119 flow [2023-08-26 08:50:59,376 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2411, PETRI_DIFFERENCE_MINUEND_FLOW=1384, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=4119, PETRI_PLACES=204, PETRI_TRANSITIONS=567} [2023-08-26 08:50:59,376 INFO L281 CegarLoopForPetriNet]: 276 programPoint places, -72 predicate places. [2023-08-26 08:50:59,377 INFO L495 AbstractCegarLoop]: Abstraction has has 204 places, 567 transitions, 4119 flow [2023-08-26 08:50:59,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 985.3) internal successors, (9853), 10 states have internal predecessors, (9853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:50:59,378 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:50:59,378 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:50:59,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-26 08:50:59,378 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 283 more)] === [2023-08-26 08:50:59,379 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:50:59,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1247743145, now seen corresponding path program 3 times [2023-08-26 08:50:59,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:50:59,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252370577] [2023-08-26 08:50:59,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:50:59,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:50:59,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:50:59,957 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-26 08:50:59,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:50:59,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252370577] [2023-08-26 08:50:59,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252370577] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:50:59,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:50:59,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-26 08:50:59,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554549174] [2023-08-26 08:50:59,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:50:59,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-26 08:50:59,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:50:59,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-26 08:50:59,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-08-26 08:50:59,965 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 982 out of 2411 [2023-08-26 08:50:59,969 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 567 transitions, 4119 flow. Second operand has 10 states, 10 states have (on average 985.3) internal successors, (9853), 10 states have internal predecessors, (9853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:50:59,969 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:50:59,969 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 982 of 2411 [2023-08-26 08:50:59,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand