/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 INSUFFICIENT_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/parallel-ticket-4.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 19:49:06,937 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 19:49:06,992 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 19:49:06,994 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 19:49:06,995 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 19:49:07,014 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 19:49:07,014 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 19:49:07,015 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 19:49:07,015 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 19:49:07,018 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 19:49:07,018 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 19:49:07,018 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 19:49:07,018 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 19:49:07,019 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 19:49:07,019 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 19:49:07,019 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 19:49:07,020 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 19:49:07,020 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 19:49:07,020 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 19:49:07,020 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 19:49:07,020 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 19:49:07,021 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 19:49:07,021 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 19:49:07,021 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 19:49:07,021 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 19:49:07,022 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 19:49:07,022 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 19:49:07,022 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 19:49:07,022 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 19:49:07,022 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 19:49:07,023 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 19:49:07,023 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 19:49:07,023 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 19:49:07,023 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 19:49:07,023 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 19:49:07,023 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 19:49:07,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 19:49:07,286 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 19:49:07,288 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 19:49:07,288 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 19:49:07,289 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 19:49:07,289 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-4.wvr.c [2023-08-25 19:49:08,305 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 19:49:08,477 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 19:49:08,477 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-4.wvr.c [2023-08-25 19:49:08,482 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/861e3116c/75481c588bad4ff2adce013c49d60005/FLAG2bc07d580 [2023-08-25 19:49:08,490 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/861e3116c/75481c588bad4ff2adce013c49d60005 [2023-08-25 19:49:08,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 19:49:08,493 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 19:49:08,493 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 19:49:08,493 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 19:49:08,495 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 19:49:08,496 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:49:08" (1/1) ... [2023-08-25 19:49:08,496 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fd277d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:49:08, skipping insertion in model container [2023-08-25 19:49:08,496 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:49:08" (1/1) ... [2023-08-25 19:49:08,510 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 19:49:08,647 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 19:49:08,656 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 19:49:08,690 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 19:49:08,697 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 19:49:08,697 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 19:49:08,701 INFO L206 MainTranslator]: Completed translation [2023-08-25 19:49:08,702 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:49:08 WrapperNode [2023-08-25 19:49:08,702 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 19:49:08,703 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 19:49:08,703 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 19:49:08,703 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 19:49:08,708 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:49:08" (1/1) ... [2023-08-25 19:49:08,729 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:49:08" (1/1) ... [2023-08-25 19:49:08,761 INFO L138 Inliner]: procedures = 23, calls = 71, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 418 [2023-08-25 19:49:08,761 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 19:49:08,761 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 19:49:08,762 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 19:49:08,762 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 19:49:08,771 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:49:08" (1/1) ... [2023-08-25 19:49:08,771 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:49:08" (1/1) ... [2023-08-25 19:49:08,776 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:49:08" (1/1) ... [2023-08-25 19:49:08,776 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:49:08" (1/1) ... [2023-08-25 19:49:08,782 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:49:08" (1/1) ... [2023-08-25 19:49:08,784 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:49:08" (1/1) ... [2023-08-25 19:49:08,785 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:49:08" (1/1) ... [2023-08-25 19:49:08,786 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:49:08" (1/1) ... [2023-08-25 19:49:08,788 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 19:49:08,789 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 19:49:08,789 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 19:49:08,789 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 19:49:08,790 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:49:08" (1/1) ... [2023-08-25 19:49:08,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 19:49:08,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:49:08,823 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 19:49:08,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 19:49:08,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 19:49:08,852 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 19:49:08,852 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 19:49:08,852 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 19:49:08,852 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 19:49:08,852 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-25 19:49:08,853 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-25 19:49:08,853 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-08-25 19:49:08,853 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-08-25 19:49:08,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 19:49:08,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 19:49:08,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 19:49:08,853 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 19:49:08,853 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 19:49:08,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 19:49:08,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 19:49:08,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 19:49:08,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 19:49:08,854 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 19:49:08,926 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 19:49:08,928 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 19:49:09,292 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 19:49:09,464 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 19:49:09,465 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 19:49:09,467 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:49:09 BoogieIcfgContainer [2023-08-25 19:49:09,467 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 19:49:09,470 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 19:49:09,470 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 19:49:09,472 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 19:49:09,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 07:49:08" (1/3) ... [2023-08-25 19:49:09,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b13b9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:49:09, skipping insertion in model container [2023-08-25 19:49:09,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:49:08" (2/3) ... [2023-08-25 19:49:09,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b13b9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:49:09, skipping insertion in model container [2023-08-25 19:49:09,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:49:09" (3/3) ... [2023-08-25 19:49:09,476 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-4.wvr.c [2023-08-25 19:49:09,487 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 19:49:09,487 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 63 error locations. [2023-08-25 19:49:09,488 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 19:49:09,569 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-08-25 19:49:09,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 295 places, 287 transitions, 606 flow [2023-08-25 19:49:09,699 INFO L124 PetriNetUnfolderBase]: 5/283 cut-off events. [2023-08-25 19:49:09,699 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-25 19:49:09,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 283 events. 5/283 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 290 event pairs, 0 based on Foata normal form. 0/215 useless extension candidates. Maximal degree in co-relation 209. Up to 2 conditions per place. [2023-08-25 19:49:09,704 INFO L82 GeneralOperation]: Start removeDead. Operand has 295 places, 287 transitions, 606 flow [2023-08-25 19:49:09,711 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 278 places, 270 transitions, 564 flow [2023-08-25 19:49:09,714 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 19:49:09,725 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 278 places, 270 transitions, 564 flow [2023-08-25 19:49:09,728 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 278 places, 270 transitions, 564 flow [2023-08-25 19:49:09,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 278 places, 270 transitions, 564 flow [2023-08-25 19:49:09,768 INFO L124 PetriNetUnfolderBase]: 5/270 cut-off events. [2023-08-25 19:49:09,768 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-25 19:49:09,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 287 conditions, 270 events. 5/270 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 291 event pairs, 0 based on Foata normal form. 0/203 useless extension candidates. Maximal degree in co-relation 209. Up to 2 conditions per place. [2023-08-25 19:49:09,773 INFO L119 LiptonReduction]: Number of co-enabled transitions 7752 [2023-08-25 19:49:15,859 INFO L134 LiptonReduction]: Checked pairs total: 50408 [2023-08-25 19:49:15,859 INFO L136 LiptonReduction]: Total number of compositions: 263 [2023-08-25 19:49:15,874 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 19:49:15,879 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;@16983b33, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 19:49:15,879 INFO L358 AbstractCegarLoop]: Starting to check reachability of 110 error locations. [2023-08-25 19:49:15,880 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 19:49:15,880 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 19:49:15,880 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 19:49:15,880 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:49:15,880 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 19:49:15,880 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 19:49:15,883 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:49:15,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1383, now seen corresponding path program 1 times [2023-08-25 19:49:15,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:49:15,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316824282] [2023-08-25 19:49:15,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:49:15,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:49:15,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:49:15,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:49:15,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:49:15,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316824282] [2023-08-25 19:49:15,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316824282] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:49:15,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:49:15,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 19:49:15,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854863100] [2023-08-25 19:49:15,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:49:15,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 19:49:15,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:49:15,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 19:49:15,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 19:49:15,982 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 550 [2023-08-25 19:49:15,983 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 96 transitions, 216 flow. Second operand has 2 states, 2 states have (on average 216.5) internal successors, (433), 2 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:15,983 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:49:15,983 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 550 [2023-08-25 19:49:15,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:49:16,545 INFO L124 PetriNetUnfolderBase]: 5627/7812 cut-off events. [2023-08-25 19:49:16,546 INFO L125 PetriNetUnfolderBase]: For 454/454 co-relation queries the response was YES. [2023-08-25 19:49:16,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16160 conditions, 7812 events. 5627/7812 cut-off events. For 454/454 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 34382 event pairs, 5627 based on Foata normal form. 0/7812 useless extension candidates. Maximal degree in co-relation 13992. Up to 7813 conditions per place. [2023-08-25 19:49:16,616 INFO L140 encePairwiseOnDemand]: 488/550 looper letters, 34 selfloop transitions, 0 changer transitions 0/34 dead transitions. [2023-08-25 19:49:16,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 34 transitions, 160 flow [2023-08-25 19:49:16,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 19:49:16,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 19:49:16,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 528 transitions. [2023-08-25 19:49:16,629 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48 [2023-08-25 19:49:16,629 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 528 transitions. [2023-08-25 19:49:16,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 528 transitions. [2023-08-25 19:49:16,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:49:16,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 528 transitions. [2023-08-25 19:49:16,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 264.0) internal successors, (528), 2 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:16,640 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 550.0) internal successors, (1650), 3 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:16,641 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 550.0) internal successors, (1650), 3 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:16,642 INFO L175 Difference]: Start difference. First operand has 109 places, 96 transitions, 216 flow. Second operand 2 states and 528 transitions. [2023-08-25 19:49:16,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 34 transitions, 160 flow [2023-08-25 19:49:16,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 34 transitions, 144 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-08-25 19:49:16,649 INFO L231 Difference]: Finished difference. Result has 40 places, 34 transitions, 76 flow [2023-08-25 19:49:16,650 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=76, PETRI_PLACES=40, PETRI_TRANSITIONS=34} [2023-08-25 19:49:16,653 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -69 predicate places. [2023-08-25 19:49:16,654 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 34 transitions, 76 flow [2023-08-25 19:49:16,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 216.5) internal successors, (433), 2 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:16,654 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:49:16,654 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:49:16,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 19:49:16,655 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 19:49:16,660 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:49:16,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1607284180, now seen corresponding path program 1 times [2023-08-25 19:49:16,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:49:16,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783055114] [2023-08-25 19:49:16,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:49:16,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:49:16,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:49:17,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:49:17,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:49:17,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783055114] [2023-08-25 19:49:17,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783055114] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:49:17,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:49:17,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:49:17,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679198846] [2023-08-25 19:49:17,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:49:17,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:49:17,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:49:17,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:49:17,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:49:17,089 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 19:49:17,090 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 34 transitions, 76 flow. Second operand has 5 states, 5 states have (on average 213.8) internal successors, (1069), 5 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:17,090 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:49:17,090 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 19:49:17,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:49:17,642 INFO L124 PetriNetUnfolderBase]: 6106/8495 cut-off events. [2023-08-25 19:49:17,643 INFO L125 PetriNetUnfolderBase]: For 98/98 co-relation queries the response was YES. [2023-08-25 19:49:17,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17203 conditions, 8495 events. 6106/8495 cut-off events. For 98/98 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 39529 event pairs, 1670 based on Foata normal form. 204/8699 useless extension candidates. Maximal degree in co-relation 17200. Up to 5023 conditions per place. [2023-08-25 19:49:17,669 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 74 selfloop transitions, 13 changer transitions 0/87 dead transitions. [2023-08-25 19:49:17,670 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 87 transitions, 364 flow [2023-08-25 19:49:17,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:49:17,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:49:17,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1123 transitions. [2023-08-25 19:49:17,672 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4083636363636364 [2023-08-25 19:49:17,672 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1123 transitions. [2023-08-25 19:49:17,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1123 transitions. [2023-08-25 19:49:17,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:49:17,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1123 transitions. [2023-08-25 19:49:17,675 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 224.6) internal successors, (1123), 5 states have internal predecessors, (1123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:17,678 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 550.0) internal successors, (3300), 6 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:17,679 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 550.0) internal successors, (3300), 6 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:17,679 INFO L175 Difference]: Start difference. First operand has 40 places, 34 transitions, 76 flow. Second operand 5 states and 1123 transitions. [2023-08-25 19:49:17,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 87 transitions, 364 flow [2023-08-25 19:49:17,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 87 transitions, 364 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:49:17,681 INFO L231 Difference]: Finished difference. Result has 47 places, 46 transitions, 162 flow [2023-08-25 19:49:17,681 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=162, PETRI_PLACES=47, PETRI_TRANSITIONS=46} [2023-08-25 19:49:17,682 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -62 predicate places. [2023-08-25 19:49:17,682 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 46 transitions, 162 flow [2023-08-25 19:49:17,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 213.8) internal successors, (1069), 5 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:17,682 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:49:17,682 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:49:17,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 19:49:17,683 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 19:49:17,683 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:49:17,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1924587212, now seen corresponding path program 2 times [2023-08-25 19:49:17,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:49:17,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255762650] [2023-08-25 19:49:17,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:49:17,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:49:17,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:49:17,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:49:17,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:49:17,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255762650] [2023-08-25 19:49:17,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255762650] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:49:17,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:49:17,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:49:17,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785913926] [2023-08-25 19:49:17,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:49:17,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:49:17,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:49:17,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:49:17,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:49:17,800 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 19:49:17,801 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 46 transitions, 162 flow. Second operand has 5 states, 5 states have (on average 213.8) internal successors, (1069), 5 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:17,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:49:17,801 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 19:49:17,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:49:18,246 INFO L124 PetriNetUnfolderBase]: 5112/7293 cut-off events. [2023-08-25 19:49:18,246 INFO L125 PetriNetUnfolderBase]: For 2826/2826 co-relation queries the response was YES. [2023-08-25 19:49:18,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18824 conditions, 7293 events. 5112/7293 cut-off events. For 2826/2826 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 34545 event pairs, 1368 based on Foata normal form. 242/7535 useless extension candidates. Maximal degree in co-relation 18817. Up to 4693 conditions per place. [2023-08-25 19:49:18,280 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 72 selfloop transitions, 18 changer transitions 0/90 dead transitions. [2023-08-25 19:49:18,281 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 90 transitions, 470 flow [2023-08-25 19:49:18,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:49:18,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:49:18,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1121 transitions. [2023-08-25 19:49:18,283 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40763636363636363 [2023-08-25 19:49:18,283 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1121 transitions. [2023-08-25 19:49:18,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1121 transitions. [2023-08-25 19:49:18,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:49:18,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1121 transitions. [2023-08-25 19:49:18,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 224.2) internal successors, (1121), 5 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:18,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 550.0) internal successors, (3300), 6 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:18,289 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 550.0) internal successors, (3300), 6 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:18,289 INFO L175 Difference]: Start difference. First operand has 47 places, 46 transitions, 162 flow. Second operand 5 states and 1121 transitions. [2023-08-25 19:49:18,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 90 transitions, 470 flow [2023-08-25 19:49:18,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 90 transitions, 470 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:49:18,294 INFO L231 Difference]: Finished difference. Result has 53 places, 52 transitions, 249 flow [2023-08-25 19:49:18,294 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=249, PETRI_PLACES=53, PETRI_TRANSITIONS=52} [2023-08-25 19:49:18,295 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -56 predicate places. [2023-08-25 19:49:18,295 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 52 transitions, 249 flow [2023-08-25 19:49:18,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 213.8) internal successors, (1069), 5 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:18,295 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:49:18,296 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:49:18,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 19:49:18,298 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 19:49:18,299 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:49:18,299 INFO L85 PathProgramCache]: Analyzing trace with hash -539493472, now seen corresponding path program 3 times [2023-08-25 19:49:18,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:49:18,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047359038] [2023-08-25 19:49:18,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:49:18,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:49:18,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:49:18,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:49:18,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:49:18,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047359038] [2023-08-25 19:49:18,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047359038] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:49:18,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:49:18,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:49:18,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227796456] [2023-08-25 19:49:18,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:49:18,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 19:49:18,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:49:18,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 19:49:18,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-25 19:49:18,451 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 19:49:18,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 52 transitions, 249 flow. Second operand has 6 states, 6 states have (on average 212.66666666666666) internal successors, (1276), 6 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:18,452 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:49:18,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 19:49:18,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:49:19,287 INFO L124 PetriNetUnfolderBase]: 9380/13673 cut-off events. [2023-08-25 19:49:19,287 INFO L125 PetriNetUnfolderBase]: For 7525/7525 co-relation queries the response was YES. [2023-08-25 19:49:19,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36209 conditions, 13673 events. 9380/13673 cut-off events. For 7525/7525 co-relation queries the response was YES. Maximal size of possible extension queue 507. Compared 77504 event pairs, 2226 based on Foata normal form. 326/13999 useless extension candidates. Maximal degree in co-relation 36199. Up to 4947 conditions per place. [2023-08-25 19:49:19,395 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 102 selfloop transitions, 47 changer transitions 0/149 dead transitions. [2023-08-25 19:49:19,395 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 149 transitions, 910 flow [2023-08-25 19:49:19,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:49:19,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:49:19,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1362 transitions. [2023-08-25 19:49:19,398 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4127272727272727 [2023-08-25 19:49:19,398 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1362 transitions. [2023-08-25 19:49:19,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1362 transitions. [2023-08-25 19:49:19,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:49:19,399 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1362 transitions. [2023-08-25 19:49:19,401 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 227.0) internal successors, (1362), 6 states have internal predecessors, (1362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:19,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 550.0) internal successors, (3850), 7 states have internal predecessors, (3850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:19,405 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 550.0) internal successors, (3850), 7 states have internal predecessors, (3850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:19,406 INFO L175 Difference]: Start difference. First operand has 53 places, 52 transitions, 249 flow. Second operand 6 states and 1362 transitions. [2023-08-25 19:49:19,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 149 transitions, 910 flow [2023-08-25 19:49:19,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 149 transitions, 880 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 19:49:19,410 INFO L231 Difference]: Finished difference. Result has 58 places, 82 transitions, 569 flow [2023-08-25 19:49:19,410 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=569, PETRI_PLACES=58, PETRI_TRANSITIONS=82} [2023-08-25 19:49:19,411 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -51 predicate places. [2023-08-25 19:49:19,411 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 82 transitions, 569 flow [2023-08-25 19:49:19,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 212.66666666666666) internal successors, (1276), 6 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:19,411 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:49:19,412 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:49:19,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 19:49:19,412 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 19:49:19,412 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:49:19,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1450499282, now seen corresponding path program 4 times [2023-08-25 19:49:19,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:49:19,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451242214] [2023-08-25 19:49:19,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:49:19,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:49:19,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:49:19,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:49:19,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:49:19,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451242214] [2023-08-25 19:49:19,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451242214] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:49:19,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:49:19,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 19:49:19,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246590921] [2023-08-25 19:49:19,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:49:19,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 19:49:19,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:49:19,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 19:49:19,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-25 19:49:19,553 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 19:49:19,555 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 82 transitions, 569 flow. Second operand has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:19,555 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:49:19,555 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 19:49:19,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:49:20,703 INFO L124 PetriNetUnfolderBase]: 10114/14963 cut-off events. [2023-08-25 19:49:20,703 INFO L125 PetriNetUnfolderBase]: For 19894/19894 co-relation queries the response was YES. [2023-08-25 19:49:20,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47203 conditions, 14963 events. 10114/14963 cut-off events. For 19894/19894 co-relation queries the response was YES. Maximal size of possible extension queue 582. Compared 89015 event pairs, 2430 based on Foata normal form. 500/15463 useless extension candidates. Maximal degree in co-relation 47191. Up to 5031 conditions per place. [2023-08-25 19:49:20,757 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 131 selfloop transitions, 72 changer transitions 0/203 dead transitions. [2023-08-25 19:49:20,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 203 transitions, 1462 flow [2023-08-25 19:49:20,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 19:49:20,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 19:49:20,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1818 transitions. [2023-08-25 19:49:20,761 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4131818181818182 [2023-08-25 19:49:20,761 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1818 transitions. [2023-08-25 19:49:20,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1818 transitions. [2023-08-25 19:49:20,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:49:20,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1818 transitions. [2023-08-25 19:49:20,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 227.25) internal successors, (1818), 8 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:20,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 550.0) internal successors, (4950), 9 states have internal predecessors, (4950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:20,769 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 550.0) internal successors, (4950), 9 states have internal predecessors, (4950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:20,769 INFO L175 Difference]: Start difference. First operand has 58 places, 82 transitions, 569 flow. Second operand 8 states and 1818 transitions. [2023-08-25 19:49:20,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 203 transitions, 1462 flow [2023-08-25 19:49:20,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 203 transitions, 1443 flow, removed 7 selfloop flow, removed 1 redundant places. [2023-08-25 19:49:20,779 INFO L231 Difference]: Finished difference. Result has 68 places, 107 transitions, 987 flow [2023-08-25 19:49:20,779 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=554, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=987, PETRI_PLACES=68, PETRI_TRANSITIONS=107} [2023-08-25 19:49:20,779 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -41 predicate places. [2023-08-25 19:49:20,780 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 107 transitions, 987 flow [2023-08-25 19:49:20,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:20,780 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:49:20,780 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:49:20,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 19:49:20,780 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 19:49:20,781 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:49:20,781 INFO L85 PathProgramCache]: Analyzing trace with hash 815100194, now seen corresponding path program 5 times [2023-08-25 19:49:20,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:49:20,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542227524] [2023-08-25 19:49:20,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:49:20,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:49:20,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:49:21,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:49:21,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:49:21,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542227524] [2023-08-25 19:49:21,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542227524] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:49:21,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:49:21,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:49:21,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797056147] [2023-08-25 19:49:21,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:49:21,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 19:49:21,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:49:21,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 19:49:21,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-25 19:49:21,151 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 550 [2023-08-25 19:49:21,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 107 transitions, 987 flow. Second operand has 6 states, 6 states have (on average 214.66666666666666) internal successors, (1288), 6 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:21,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:49:21,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 550 [2023-08-25 19:49:21,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:49:22,600 INFO L124 PetriNetUnfolderBase]: 13793/20595 cut-off events. [2023-08-25 19:49:22,600 INFO L125 PetriNetUnfolderBase]: For 54708/54708 co-relation queries the response was YES. [2023-08-25 19:49:22,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74877 conditions, 20595 events. 13793/20595 cut-off events. For 54708/54708 co-relation queries the response was YES. Maximal size of possible extension queue 821. Compared 129549 event pairs, 4010 based on Foata normal form. 1/20596 useless extension candidates. Maximal degree in co-relation 74860. Up to 10521 conditions per place. [2023-08-25 19:49:22,675 INFO L140 encePairwiseOnDemand]: 543/550 looper letters, 228 selfloop transitions, 12 changer transitions 69/309 dead transitions. [2023-08-25 19:49:22,675 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 309 transitions, 3359 flow [2023-08-25 19:49:22,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:49:22,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:49:22,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1369 transitions. [2023-08-25 19:49:22,679 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41484848484848486 [2023-08-25 19:49:22,679 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1369 transitions. [2023-08-25 19:49:22,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1369 transitions. [2023-08-25 19:49:22,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:49:22,680 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1369 transitions. [2023-08-25 19:49:22,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 228.16666666666666) internal successors, (1369), 6 states have internal predecessors, (1369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:22,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 550.0) internal successors, (3850), 7 states have internal predecessors, (3850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:22,685 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 550.0) internal successors, (3850), 7 states have internal predecessors, (3850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:22,685 INFO L175 Difference]: Start difference. First operand has 68 places, 107 transitions, 987 flow. Second operand 6 states and 1369 transitions. [2023-08-25 19:49:22,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 309 transitions, 3359 flow [2023-08-25 19:49:22,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 309 transitions, 3126 flow, removed 12 selfloop flow, removed 3 redundant places. [2023-08-25 19:49:22,763 INFO L231 Difference]: Finished difference. Result has 73 places, 116 transitions, 926 flow [2023-08-25 19:49:22,764 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=893, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=926, PETRI_PLACES=73, PETRI_TRANSITIONS=116} [2023-08-25 19:49:22,766 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -36 predicate places. [2023-08-25 19:49:22,766 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 116 transitions, 926 flow [2023-08-25 19:49:22,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 214.66666666666666) internal successors, (1288), 6 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:22,767 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:49:22,767 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:49:22,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 19:49:22,767 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 19:49:22,767 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:49:22,767 INFO L85 PathProgramCache]: Analyzing trace with hash -804151248, now seen corresponding path program 6 times [2023-08-25 19:49:22,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:49:22,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658833245] [2023-08-25 19:49:22,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:49:22,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:49:22,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:49:22,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:49:22,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:49:22,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658833245] [2023-08-25 19:49:22,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658833245] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:49:22,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:49:22,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:49:22,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251277251] [2023-08-25 19:49:22,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:49:22,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:49:22,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:49:22,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:49:22,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:49:22,892 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 19:49:22,893 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 116 transitions, 926 flow. Second operand has 5 states, 5 states have (on average 213.8) internal successors, (1069), 5 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:22,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:49:22,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 19:49:22,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:49:23,586 INFO L124 PetriNetUnfolderBase]: 5166/8037 cut-off events. [2023-08-25 19:49:23,586 INFO L125 PetriNetUnfolderBase]: For 17220/17220 co-relation queries the response was YES. [2023-08-25 19:49:23,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29739 conditions, 8037 events. 5166/8037 cut-off events. For 17220/17220 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 45759 event pairs, 1754 based on Foata normal form. 132/8169 useless extension candidates. Maximal degree in co-relation 29719. Up to 7403 conditions per place. [2023-08-25 19:49:23,615 INFO L140 encePairwiseOnDemand]: 541/550 looper letters, 103 selfloop transitions, 34 changer transitions 3/140 dead transitions. [2023-08-25 19:49:23,615 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 140 transitions, 1300 flow [2023-08-25 19:49:23,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:49:23,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:49:23,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1113 transitions. [2023-08-25 19:49:23,618 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4047272727272727 [2023-08-25 19:49:23,619 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1113 transitions. [2023-08-25 19:49:23,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1113 transitions. [2023-08-25 19:49:23,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:49:23,619 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1113 transitions. [2023-08-25 19:49:23,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 222.6) internal successors, (1113), 5 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:23,623 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 550.0) internal successors, (3300), 6 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:23,624 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 550.0) internal successors, (3300), 6 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:23,624 INFO L175 Difference]: Start difference. First operand has 73 places, 116 transitions, 926 flow. Second operand 5 states and 1113 transitions. [2023-08-25 19:49:23,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 140 transitions, 1300 flow [2023-08-25 19:49:23,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 140 transitions, 1289 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-25 19:49:23,659 INFO L231 Difference]: Finished difference. Result has 76 places, 108 transitions, 956 flow [2023-08-25 19:49:23,659 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=729, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=956, PETRI_PLACES=76, PETRI_TRANSITIONS=108} [2023-08-25 19:49:23,659 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -33 predicate places. [2023-08-25 19:49:23,668 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 108 transitions, 956 flow [2023-08-25 19:49:23,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 213.8) internal successors, (1069), 5 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:23,668 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:49:23,668 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:49:23,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 19:49:23,669 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 19:49:23,669 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:49:23,669 INFO L85 PathProgramCache]: Analyzing trace with hash 741804580, now seen corresponding path program 7 times [2023-08-25 19:49:23,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:49:23,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423719857] [2023-08-25 19:49:23,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:49:23,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:49:23,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:49:23,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:49:23,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:49:23,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423719857] [2023-08-25 19:49:23,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423719857] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:49:23,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:49:23,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-25 19:49:23,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345291571] [2023-08-25 19:49:23,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:49:23,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-25 19:49:23,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:49:23,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-25 19:49:23,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-08-25 19:49:23,827 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 19:49:23,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 108 transitions, 956 flow. Second operand has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:23,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:49:23,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 19:49:23,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:49:24,698 INFO L124 PetriNetUnfolderBase]: 5909/9336 cut-off events. [2023-08-25 19:49:24,698 INFO L125 PetriNetUnfolderBase]: For 20004/20004 co-relation queries the response was YES. [2023-08-25 19:49:24,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34533 conditions, 9336 events. 5909/9336 cut-off events. For 20004/20004 co-relation queries the response was YES. Maximal size of possible extension queue 366. Compared 56771 event pairs, 1131 based on Foata normal form. 50/9386 useless extension candidates. Maximal degree in co-relation 34512. Up to 3026 conditions per place. [2023-08-25 19:49:24,802 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 154 selfloop transitions, 112 changer transitions 1/267 dead transitions. [2023-08-25 19:49:24,802 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 267 transitions, 2414 flow [2023-08-25 19:49:24,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 19:49:24,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 19:49:24,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2012 transitions. [2023-08-25 19:49:24,808 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4064646464646465 [2023-08-25 19:49:24,809 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2012 transitions. [2023-08-25 19:49:24,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2012 transitions. [2023-08-25 19:49:24,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:49:24,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2012 transitions. [2023-08-25 19:49:24,812 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 223.55555555555554) internal successors, (2012), 9 states have internal predecessors, (2012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:24,817 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 550.0) internal successors, (5500), 10 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:24,818 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 550.0) internal successors, (5500), 10 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:24,818 INFO L175 Difference]: Start difference. First operand has 76 places, 108 transitions, 956 flow. Second operand 9 states and 2012 transitions. [2023-08-25 19:49:24,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 267 transitions, 2414 flow [2023-08-25 19:49:24,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 267 transitions, 2373 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 19:49:24,865 INFO L231 Difference]: Finished difference. Result has 85 places, 157 transitions, 1764 flow [2023-08-25 19:49:24,865 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=923, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1764, PETRI_PLACES=85, PETRI_TRANSITIONS=157} [2023-08-25 19:49:24,867 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -24 predicate places. [2023-08-25 19:49:24,867 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 157 transitions, 1764 flow [2023-08-25 19:49:24,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:24,868 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:49:24,868 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:49:24,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 19:49:24,869 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 19:49:24,869 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:49:24,869 INFO L85 PathProgramCache]: Analyzing trace with hash -797981306, now seen corresponding path program 8 times [2023-08-25 19:49:24,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:49:24,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887864348] [2023-08-25 19:49:24,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:49:24,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:49:24,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:49:25,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:49:25,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:49:25,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887864348] [2023-08-25 19:49:25,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887864348] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:49:25,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:49:25,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 19:49:25,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246728527] [2023-08-25 19:49:25,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:49:25,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 19:49:25,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:49:25,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 19:49:25,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-25 19:49:25,010 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 19:49:25,011 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 157 transitions, 1764 flow. Second operand has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:25,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:49:25,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 19:49:25,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:49:25,859 INFO L124 PetriNetUnfolderBase]: 5734/9177 cut-off events. [2023-08-25 19:49:25,859 INFO L125 PetriNetUnfolderBase]: For 33036/33036 co-relation queries the response was YES. [2023-08-25 19:49:25,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39656 conditions, 9177 events. 5734/9177 cut-off events. For 33036/33036 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 56626 event pairs, 1178 based on Foata normal form. 144/9321 useless extension candidates. Maximal degree in co-relation 39632. Up to 4279 conditions per place. [2023-08-25 19:49:25,901 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 169 selfloop transitions, 103 changer transitions 8/280 dead transitions. [2023-08-25 19:49:25,901 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 280 transitions, 2999 flow [2023-08-25 19:49:25,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 19:49:25,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 19:49:25,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1804 transitions. [2023-08-25 19:49:25,905 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41 [2023-08-25 19:49:25,905 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1804 transitions. [2023-08-25 19:49:25,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1804 transitions. [2023-08-25 19:49:25,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:49:25,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1804 transitions. [2023-08-25 19:49:25,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 225.5) internal successors, (1804), 8 states have internal predecessors, (1804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:25,913 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 550.0) internal successors, (4950), 9 states have internal predecessors, (4950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:25,914 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 550.0) internal successors, (4950), 9 states have internal predecessors, (4950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:25,914 INFO L175 Difference]: Start difference. First operand has 85 places, 157 transitions, 1764 flow. Second operand 8 states and 1804 transitions. [2023-08-25 19:49:25,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 280 transitions, 2999 flow [2023-08-25 19:49:25,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 280 transitions, 2955 flow, removed 20 selfloop flow, removed 1 redundant places. [2023-08-25 19:49:25,991 INFO L231 Difference]: Finished difference. Result has 93 places, 166 transitions, 2073 flow [2023-08-25 19:49:25,991 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=1726, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2073, PETRI_PLACES=93, PETRI_TRANSITIONS=166} [2023-08-25 19:49:25,992 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -16 predicate places. [2023-08-25 19:49:25,992 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 166 transitions, 2073 flow [2023-08-25 19:49:25,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:25,992 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:49:25,992 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:49:25,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 19:49:25,992 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 19:49:25,993 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:49:25,993 INFO L85 PathProgramCache]: Analyzing trace with hash 428640432, now seen corresponding path program 9 times [2023-08-25 19:49:25,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:49:25,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500996980] [2023-08-25 19:49:25,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:49:25,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:49:26,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:49:26,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:49:26,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:49:26,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500996980] [2023-08-25 19:49:26,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500996980] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:49:26,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:49:26,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 19:49:26,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830158604] [2023-08-25 19:49:26,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:49:26,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 19:49:26,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:49:26,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 19:49:26,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-25 19:49:26,097 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 19:49:26,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 166 transitions, 2073 flow. Second operand has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:26,098 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:49:26,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 19:49:26,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:49:26,836 INFO L124 PetriNetUnfolderBase]: 4234/7011 cut-off events. [2023-08-25 19:49:26,836 INFO L125 PetriNetUnfolderBase]: For 27465/27465 co-relation queries the response was YES. [2023-08-25 19:49:26,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31056 conditions, 7011 events. 4234/7011 cut-off events. For 27465/27465 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 43175 event pairs, 1032 based on Foata normal form. 360/7371 useless extension candidates. Maximal degree in co-relation 31029. Up to 3627 conditions per place. [2023-08-25 19:49:26,864 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 144 selfloop transitions, 115 changer transitions 26/285 dead transitions. [2023-08-25 19:49:26,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 285 transitions, 3509 flow [2023-08-25 19:49:26,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 19:49:26,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 19:49:26,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1798 transitions. [2023-08-25 19:49:26,868 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40863636363636363 [2023-08-25 19:49:26,868 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1798 transitions. [2023-08-25 19:49:26,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1798 transitions. [2023-08-25 19:49:26,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:49:26,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1798 transitions. [2023-08-25 19:49:26,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 224.75) internal successors, (1798), 8 states have internal predecessors, (1798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:26,875 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 550.0) internal successors, (4950), 9 states have internal predecessors, (4950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:26,875 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 550.0) internal successors, (4950), 9 states have internal predecessors, (4950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:26,875 INFO L175 Difference]: Start difference. First operand has 93 places, 166 transitions, 2073 flow. Second operand 8 states and 1798 transitions. [2023-08-25 19:49:26,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 285 transitions, 3509 flow [2023-08-25 19:49:26,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 285 transitions, 3441 flow, removed 14 selfloop flow, removed 3 redundant places. [2023-08-25 19:49:26,925 INFO L231 Difference]: Finished difference. Result has 100 places, 177 transitions, 2495 flow [2023-08-25 19:49:26,926 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=2015, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2495, PETRI_PLACES=100, PETRI_TRANSITIONS=177} [2023-08-25 19:49:26,926 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -9 predicate places. [2023-08-25 19:49:26,926 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 177 transitions, 2495 flow [2023-08-25 19:49:26,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:26,926 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:49:26,927 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:49:26,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 19:49:26,927 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 19:49:26,927 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:49:26,927 INFO L85 PathProgramCache]: Analyzing trace with hash 987333846, now seen corresponding path program 10 times [2023-08-25 19:49:26,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:49:26,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939063843] [2023-08-25 19:49:26,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:49:26,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:49:26,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:49:27,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:49:27,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:49:27,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939063843] [2023-08-25 19:49:27,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939063843] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:49:27,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:49:27,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 19:49:27,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454786393] [2023-08-25 19:49:27,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:49:27,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 19:49:27,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:49:27,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 19:49:27,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-08-25 19:49:27,084 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 19:49:27,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 177 transitions, 2495 flow. Second operand has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:27,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:49:27,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 19:49:27,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:49:27,843 INFO L124 PetriNetUnfolderBase]: 4450/7505 cut-off events. [2023-08-25 19:49:27,843 INFO L125 PetriNetUnfolderBase]: For 34783/34783 co-relation queries the response was YES. [2023-08-25 19:49:27,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33941 conditions, 7505 events. 4450/7505 cut-off events. For 34783/34783 co-relation queries the response was YES. Maximal size of possible extension queue 309. Compared 48116 event pairs, 378 based on Foata normal form. 88/7593 useless extension candidates. Maximal degree in co-relation 33912. Up to 2729 conditions per place. [2023-08-25 19:49:27,878 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 146 selfloop transitions, 151 changer transitions 8/305 dead transitions. [2023-08-25 19:49:27,878 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 305 transitions, 3781 flow [2023-08-25 19:49:27,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 19:49:27,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 19:49:27,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1589 transitions. [2023-08-25 19:49:27,881 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4127272727272727 [2023-08-25 19:49:27,881 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1589 transitions. [2023-08-25 19:49:27,881 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1589 transitions. [2023-08-25 19:49:27,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:49:27,882 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1589 transitions. [2023-08-25 19:49:27,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 227.0) internal successors, (1589), 7 states have internal predecessors, (1589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:27,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 550.0) internal successors, (4400), 8 states have internal predecessors, (4400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:27,887 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 550.0) internal successors, (4400), 8 states have internal predecessors, (4400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:27,887 INFO L175 Difference]: Start difference. First operand has 100 places, 177 transitions, 2495 flow. Second operand 7 states and 1589 transitions. [2023-08-25 19:49:27,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 305 transitions, 3781 flow [2023-08-25 19:49:27,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 305 transitions, 3710 flow, removed 10 selfloop flow, removed 3 redundant places. [2023-08-25 19:49:27,958 INFO L231 Difference]: Finished difference. Result has 106 places, 201 transitions, 3154 flow [2023-08-25 19:49:27,959 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=2434, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=132, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3154, PETRI_PLACES=106, PETRI_TRANSITIONS=201} [2023-08-25 19:49:27,959 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -3 predicate places. [2023-08-25 19:49:27,959 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 201 transitions, 3154 flow [2023-08-25 19:49:27,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:27,959 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:49:27,960 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:49:27,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 19:49:27,960 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 19:49:27,960 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:49:27,960 INFO L85 PathProgramCache]: Analyzing trace with hash -325954334, now seen corresponding path program 11 times [2023-08-25 19:49:27,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:49:27,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708086065] [2023-08-25 19:49:27,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:49:27,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:49:27,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:49:28,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:49:28,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:49:28,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708086065] [2023-08-25 19:49:28,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708086065] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:49:28,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:49:28,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-25 19:49:28,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773141716] [2023-08-25 19:49:28,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:49:28,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-25 19:49:28,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:49:28,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-25 19:49:28,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-08-25 19:49:28,082 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 19:49:28,083 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 201 transitions, 3154 flow. Second operand has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:28,083 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:49:28,083 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 19:49:28,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:49:29,056 INFO L124 PetriNetUnfolderBase]: 4429/7492 cut-off events. [2023-08-25 19:49:29,056 INFO L125 PetriNetUnfolderBase]: For 51079/51079 co-relation queries the response was YES. [2023-08-25 19:49:29,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37659 conditions, 7492 events. 4429/7492 cut-off events. For 51079/51079 co-relation queries the response was YES. Maximal size of possible extension queue 298. Compared 47799 event pairs, 866 based on Foata normal form. 28/7520 useless extension candidates. Maximal degree in co-relation 37628. Up to 3502 conditions per place. [2023-08-25 19:49:29,097 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 175 selfloop transitions, 135 changer transitions 10/320 dead transitions. [2023-08-25 19:49:29,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 320 transitions, 4442 flow [2023-08-25 19:49:29,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 19:49:29,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 19:49:29,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2022 transitions. [2023-08-25 19:49:29,104 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4084848484848485 [2023-08-25 19:49:29,104 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2022 transitions. [2023-08-25 19:49:29,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2022 transitions. [2023-08-25 19:49:29,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:49:29,105 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2022 transitions. [2023-08-25 19:49:29,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 224.66666666666666) internal successors, (2022), 9 states have internal predecessors, (2022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:29,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 550.0) internal successors, (5500), 10 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:29,112 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 550.0) internal successors, (5500), 10 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:29,112 INFO L175 Difference]: Start difference. First operand has 106 places, 201 transitions, 3154 flow. Second operand 9 states and 2022 transitions. [2023-08-25 19:49:29,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 320 transitions, 4442 flow [2023-08-25 19:49:29,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 320 transitions, 4326 flow, removed 40 selfloop flow, removed 2 redundant places. [2023-08-25 19:49:29,226 INFO L231 Difference]: Finished difference. Result has 113 places, 204 transitions, 3347 flow [2023-08-25 19:49:29,226 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=3044, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3347, PETRI_PLACES=113, PETRI_TRANSITIONS=204} [2023-08-25 19:49:29,226 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 4 predicate places. [2023-08-25 19:49:29,226 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 204 transitions, 3347 flow [2023-08-25 19:49:29,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:29,227 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:49:29,227 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:49:29,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 19:49:29,227 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 19:49:29,227 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:49:29,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1931525040, now seen corresponding path program 12 times [2023-08-25 19:49:29,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:49:29,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142907328] [2023-08-25 19:49:29,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:49:29,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:49:29,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:49:29,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:49:29,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:49:29,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142907328] [2023-08-25 19:49:29,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142907328] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:49:29,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:49:29,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 19:49:29,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548326695] [2023-08-25 19:49:29,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:49:29,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 19:49:29,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:49:29,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 19:49:29,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-08-25 19:49:29,354 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 19:49:29,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 204 transitions, 3347 flow. Second operand has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:29,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:49:29,355 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 19:49:29,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:49:30,236 INFO L124 PetriNetUnfolderBase]: 4040/6973 cut-off events. [2023-08-25 19:49:30,236 INFO L125 PetriNetUnfolderBase]: For 54553/54553 co-relation queries the response was YES. [2023-08-25 19:49:30,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36192 conditions, 6973 events. 4040/6973 cut-off events. For 54553/54553 co-relation queries the response was YES. Maximal size of possible extension queue 307. Compared 45553 event pairs, 375 based on Foata normal form. 132/7105 useless extension candidates. Maximal degree in co-relation 36160. Up to 2421 conditions per place. [2023-08-25 19:49:30,276 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 140 selfloop transitions, 158 changer transitions 12/310 dead transitions. [2023-08-25 19:49:30,276 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 310 transitions, 4610 flow [2023-08-25 19:49:30,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 19:49:30,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 19:49:30,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1586 transitions. [2023-08-25 19:49:30,279 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41194805194805195 [2023-08-25 19:49:30,279 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1586 transitions. [2023-08-25 19:49:30,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1586 transitions. [2023-08-25 19:49:30,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:49:30,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1586 transitions. [2023-08-25 19:49:30,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 226.57142857142858) internal successors, (1586), 7 states have internal predecessors, (1586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:30,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 550.0) internal successors, (4400), 8 states have internal predecessors, (4400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:30,285 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 550.0) internal successors, (4400), 8 states have internal predecessors, (4400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:30,285 INFO L175 Difference]: Start difference. First operand has 113 places, 204 transitions, 3347 flow. Second operand 7 states and 1586 transitions. [2023-08-25 19:49:30,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 310 transitions, 4610 flow [2023-08-25 19:49:30,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 310 transitions, 4409 flow, removed 9 selfloop flow, removed 6 redundant places. [2023-08-25 19:49:30,385 INFO L231 Difference]: Finished difference. Result has 114 places, 211 transitions, 3618 flow [2023-08-25 19:49:30,386 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=3164, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=149, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3618, PETRI_PLACES=114, PETRI_TRANSITIONS=211} [2023-08-25 19:49:30,386 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 5 predicate places. [2023-08-25 19:49:30,386 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 211 transitions, 3618 flow [2023-08-25 19:49:30,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:30,387 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:49:30,387 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:49:30,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 19:49:30,387 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 19:49:30,387 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:49:30,387 INFO L85 PathProgramCache]: Analyzing trace with hash -26018462, now seen corresponding path program 13 times [2023-08-25 19:49:30,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:49:30,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686552517] [2023-08-25 19:49:30,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:49:30,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:49:30,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:49:30,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:49:30,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:49:30,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686552517] [2023-08-25 19:49:30,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686552517] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:49:30,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:49:30,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 19:49:30,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947994874] [2023-08-25 19:49:30,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:49:30,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 19:49:30,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:49:30,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 19:49:30,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-08-25 19:49:30,544 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 19:49:30,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 211 transitions, 3618 flow. Second operand has 9 states, 9 states have (on average 210.77777777777777) internal successors, (1897), 9 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:30,545 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:49:30,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 19:49:30,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:49:31,615 INFO L124 PetriNetUnfolderBase]: 3938/6813 cut-off events. [2023-08-25 19:49:31,615 INFO L125 PetriNetUnfolderBase]: For 61131/61131 co-relation queries the response was YES. [2023-08-25 19:49:31,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36400 conditions, 6813 events. 3938/6813 cut-off events. For 61131/61131 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 44135 event pairs, 746 based on Foata normal form. 14/6827 useless extension candidates. Maximal degree in co-relation 36368. Up to 2939 conditions per place. [2023-08-25 19:49:31,649 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 191 selfloop transitions, 136 changer transitions 16/343 dead transitions. [2023-08-25 19:49:31,649 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 343 transitions, 4970 flow [2023-08-25 19:49:31,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 19:49:31,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 19:49:31,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2669 transitions. [2023-08-25 19:49:31,655 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4043939393939394 [2023-08-25 19:49:31,655 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2669 transitions. [2023-08-25 19:49:31,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2669 transitions. [2023-08-25 19:49:31,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:49:31,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2669 transitions. [2023-08-25 19:49:31,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 222.41666666666666) internal successors, (2669), 12 states have internal predecessors, (2669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:31,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 550.0) internal successors, (7150), 13 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:31,664 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 550.0) internal successors, (7150), 13 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:31,664 INFO L175 Difference]: Start difference. First operand has 114 places, 211 transitions, 3618 flow. Second operand 12 states and 2669 transitions. [2023-08-25 19:49:31,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 343 transitions, 4970 flow [2023-08-25 19:49:31,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 343 transitions, 4699 flow, removed 13 selfloop flow, removed 5 redundant places. [2023-08-25 19:49:31,761 INFO L231 Difference]: Finished difference. Result has 121 places, 209 transitions, 3573 flow [2023-08-25 19:49:31,761 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=3369, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=134, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3573, PETRI_PLACES=121, PETRI_TRANSITIONS=209} [2023-08-25 19:49:31,761 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 12 predicate places. [2023-08-25 19:49:31,761 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 209 transitions, 3573 flow [2023-08-25 19:49:31,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 210.77777777777777) internal successors, (1897), 9 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:31,762 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:49:31,762 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:49:31,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-25 19:49:31,762 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 19:49:31,762 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:49:31,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1945340892, now seen corresponding path program 14 times [2023-08-25 19:49:31,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:49:31,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356149499] [2023-08-25 19:49:31,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:49:31,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:49:31,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:49:31,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:49:31,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:49:31,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356149499] [2023-08-25 19:49:31,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356149499] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:49:31,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:49:31,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 19:49:31,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532055508] [2023-08-25 19:49:31,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:49:31,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 19:49:31,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:49:31,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 19:49:31,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-08-25 19:49:31,873 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 19:49:31,874 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 209 transitions, 3573 flow. Second operand has 9 states, 9 states have (on average 210.77777777777777) internal successors, (1897), 9 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:31,874 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:49:31,874 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 19:49:31,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:49:32,791 INFO L124 PetriNetUnfolderBase]: 4054/7057 cut-off events. [2023-08-25 19:49:32,791 INFO L125 PetriNetUnfolderBase]: For 64880/64880 co-relation queries the response was YES. [2023-08-25 19:49:32,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37482 conditions, 7057 events. 4054/7057 cut-off events. For 64880/64880 co-relation queries the response was YES. Maximal size of possible extension queue 317. Compared 46606 event pairs, 774 based on Foata normal form. 54/7111 useless extension candidates. Maximal degree in co-relation 37450. Up to 2945 conditions per place. [2023-08-25 19:49:32,824 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 161 selfloop transitions, 114 changer transitions 85/360 dead transitions. [2023-08-25 19:49:32,824 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 360 transitions, 5386 flow [2023-08-25 19:49:32,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 19:49:32,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 19:49:32,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2670 transitions. [2023-08-25 19:49:32,828 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40454545454545454 [2023-08-25 19:49:32,828 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2670 transitions. [2023-08-25 19:49:32,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2670 transitions. [2023-08-25 19:49:32,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:49:32,829 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2670 transitions. [2023-08-25 19:49:32,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 222.5) internal successors, (2670), 12 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:32,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 550.0) internal successors, (7150), 13 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:32,835 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 550.0) internal successors, (7150), 13 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:32,835 INFO L175 Difference]: Start difference. First operand has 121 places, 209 transitions, 3573 flow. Second operand 12 states and 2670 transitions. [2023-08-25 19:49:32,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 360 transitions, 5386 flow [2023-08-25 19:49:32,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 360 transitions, 4922 flow, removed 0 selfloop flow, removed 11 redundant places. [2023-08-25 19:49:32,934 INFO L231 Difference]: Finished difference. Result has 123 places, 187 transitions, 2960 flow [2023-08-25 19:49:32,934 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=3183, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2960, PETRI_PLACES=123, PETRI_TRANSITIONS=187} [2023-08-25 19:49:32,935 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 14 predicate places. [2023-08-25 19:49:32,935 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 187 transitions, 2960 flow [2023-08-25 19:49:32,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 210.77777777777777) internal successors, (1897), 9 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:32,935 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:49:32,935 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:49:32,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-25 19:49:32,935 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 19:49:32,936 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:49:32,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1061181284, now seen corresponding path program 15 times [2023-08-25 19:49:32,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:49:32,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350860421] [2023-08-25 19:49:32,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:49:32,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:49:32,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:49:33,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:49:33,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:49:33,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350860421] [2023-08-25 19:49:33,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350860421] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:49:33,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:49:33,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:49:33,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513268725] [2023-08-25 19:49:33,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:49:33,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 19:49:33,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:49:33,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 19:49:33,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-25 19:49:33,069 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 19:49:33,070 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 187 transitions, 2960 flow. Second operand has 6 states, 6 states have (on average 212.66666666666666) internal successors, (1276), 6 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:33,070 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:49:33,070 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 19:49:33,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:49:33,686 INFO L124 PetriNetUnfolderBase]: 3371/6024 cut-off events. [2023-08-25 19:49:33,686 INFO L125 PetriNetUnfolderBase]: For 57253/57253 co-relation queries the response was YES. [2023-08-25 19:49:33,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31978 conditions, 6024 events. 3371/6024 cut-off events. For 57253/57253 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 39508 event pairs, 724 based on Foata normal form. 76/6100 useless extension candidates. Maximal degree in co-relation 31944. Up to 2360 conditions per place. [2023-08-25 19:49:33,715 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 147 selfloop transitions, 120 changer transitions 15/282 dead transitions. [2023-08-25 19:49:33,715 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 282 transitions, 4188 flow [2023-08-25 19:49:33,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:49:33,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:49:33,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1351 transitions. [2023-08-25 19:49:33,717 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4093939393939394 [2023-08-25 19:49:33,717 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1351 transitions. [2023-08-25 19:49:33,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1351 transitions. [2023-08-25 19:49:33,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:49:33,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1351 transitions. [2023-08-25 19:49:33,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 225.16666666666666) internal successors, (1351), 6 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:33,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 550.0) internal successors, (3850), 7 states have internal predecessors, (3850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:33,721 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 550.0) internal successors, (3850), 7 states have internal predecessors, (3850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:33,721 INFO L175 Difference]: Start difference. First operand has 123 places, 187 transitions, 2960 flow. Second operand 6 states and 1351 transitions. [2023-08-25 19:49:33,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 282 transitions, 4188 flow [2023-08-25 19:49:33,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 282 transitions, 4065 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-08-25 19:49:33,824 INFO L231 Difference]: Finished difference. Result has 122 places, 207 transitions, 3562 flow [2023-08-25 19:49:33,824 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=2847, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3562, PETRI_PLACES=122, PETRI_TRANSITIONS=207} [2023-08-25 19:49:33,824 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 13 predicate places. [2023-08-25 19:49:33,824 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 207 transitions, 3562 flow [2023-08-25 19:49:33,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 212.66666666666666) internal successors, (1276), 6 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:33,825 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:49:33,825 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:49:33,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-25 19:49:33,825 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 19:49:33,825 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:49:33,825 INFO L85 PathProgramCache]: Analyzing trace with hash 79225516, now seen corresponding path program 16 times [2023-08-25 19:49:33,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:49:33,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567582539] [2023-08-25 19:49:33,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:49:33,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:49:33,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:49:33,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:49:33,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:49:33,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567582539] [2023-08-25 19:49:33,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567582539] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:49:33,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:49:33,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 19:49:33,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695660091] [2023-08-25 19:49:33,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:49:33,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 19:49:33,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:49:33,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 19:49:33,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-08-25 19:49:33,944 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 19:49:33,945 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 207 transitions, 3562 flow. Second operand has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:33,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:49:33,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 19:49:33,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:49:34,649 INFO L124 PetriNetUnfolderBase]: 3274/5893 cut-off events. [2023-08-25 19:49:34,649 INFO L125 PetriNetUnfolderBase]: For 63461/63461 co-relation queries the response was YES. [2023-08-25 19:49:34,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33067 conditions, 5893 events. 3274/5893 cut-off events. For 63461/63461 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 39122 event pairs, 268 based on Foata normal form. 20/5913 useless extension candidates. Maximal degree in co-relation 33032. Up to 2093 conditions per place. [2023-08-25 19:49:34,679 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 130 selfloop transitions, 154 changer transitions 16/300 dead transitions. [2023-08-25 19:49:34,679 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 300 transitions, 4663 flow [2023-08-25 19:49:34,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 19:49:34,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 19:49:34,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1586 transitions. [2023-08-25 19:49:34,681 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41194805194805195 [2023-08-25 19:49:34,681 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1586 transitions. [2023-08-25 19:49:34,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1586 transitions. [2023-08-25 19:49:34,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:49:34,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1586 transitions. [2023-08-25 19:49:34,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 226.57142857142858) internal successors, (1586), 7 states have internal predecessors, (1586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:34,684 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 550.0) internal successors, (4400), 8 states have internal predecessors, (4400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:34,685 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 550.0) internal successors, (4400), 8 states have internal predecessors, (4400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:34,685 INFO L175 Difference]: Start difference. First operand has 122 places, 207 transitions, 3562 flow. Second operand 7 states and 1586 transitions. [2023-08-25 19:49:34,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 300 transitions, 4663 flow [2023-08-25 19:49:34,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 300 transitions, 4578 flow, removed 24 selfloop flow, removed 4 redundant places. [2023-08-25 19:49:34,777 INFO L231 Difference]: Finished difference. Result has 125 places, 206 transitions, 3808 flow [2023-08-25 19:49:34,777 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=3478, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=150, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3808, PETRI_PLACES=125, PETRI_TRANSITIONS=206} [2023-08-25 19:49:34,778 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 16 predicate places. [2023-08-25 19:49:34,778 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 206 transitions, 3808 flow [2023-08-25 19:49:34,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:34,778 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:49:34,778 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:49:34,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-25 19:49:34,778 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 19:49:34,779 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:49:34,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1524074688, now seen corresponding path program 17 times [2023-08-25 19:49:34,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:49:34,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232919700] [2023-08-25 19:49:34,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:49:34,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:49:34,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:49:34,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:49:34,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:49:34,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232919700] [2023-08-25 19:49:34,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232919700] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:49:34,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:49:34,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-25 19:49:34,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914764487] [2023-08-25 19:49:34,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:49:34,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-25 19:49:34,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:49:34,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-25 19:49:34,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-08-25 19:49:34,906 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 19:49:34,906 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 206 transitions, 3808 flow. Second operand has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:34,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:49:34,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 19:49:34,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:49:35,709 INFO L124 PetriNetUnfolderBase]: 3242/5847 cut-off events. [2023-08-25 19:49:35,709 INFO L125 PetriNetUnfolderBase]: For 69199/69199 co-relation queries the response was YES. [2023-08-25 19:49:35,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33658 conditions, 5847 events. 3242/5847 cut-off events. For 69199/69199 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 38811 event pairs, 278 based on Foata normal form. 14/5861 useless extension candidates. Maximal degree in co-relation 33624. Up to 1927 conditions per place. [2023-08-25 19:49:35,733 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 147 selfloop transitions, 158 changer transitions 15/320 dead transitions. [2023-08-25 19:49:35,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 320 transitions, 5082 flow [2023-08-25 19:49:35,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 19:49:35,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 19:49:35,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2022 transitions. [2023-08-25 19:49:35,735 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4084848484848485 [2023-08-25 19:49:35,735 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2022 transitions. [2023-08-25 19:49:35,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2022 transitions. [2023-08-25 19:49:35,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:49:35,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2022 transitions. [2023-08-25 19:49:35,737 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 224.66666666666666) internal successors, (2022), 9 states have internal predecessors, (2022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:35,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 550.0) internal successors, (5500), 10 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:35,739 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 550.0) internal successors, (5500), 10 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:35,739 INFO L175 Difference]: Start difference. First operand has 125 places, 206 transitions, 3808 flow. Second operand 9 states and 2022 transitions. [2023-08-25 19:49:35,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 320 transitions, 5082 flow [2023-08-25 19:49:35,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 320 transitions, 4805 flow, removed 17 selfloop flow, removed 5 redundant places. [2023-08-25 19:49:35,828 INFO L231 Difference]: Finished difference. Result has 129 places, 210 transitions, 3942 flow [2023-08-25 19:49:35,828 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=3552, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3942, PETRI_PLACES=129, PETRI_TRANSITIONS=210} [2023-08-25 19:49:35,829 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 20 predicate places. [2023-08-25 19:49:35,829 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 210 transitions, 3942 flow [2023-08-25 19:49:35,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:35,829 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:49:35,829 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:49:35,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-25 19:49:35,829 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 19:49:35,830 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:49:35,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1545057920, now seen corresponding path program 18 times [2023-08-25 19:49:35,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:49:35,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103392824] [2023-08-25 19:49:35,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:49:35,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:49:35,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:49:35,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:49:35,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:49:35,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103392824] [2023-08-25 19:49:35,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103392824] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:49:35,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:49:35,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-25 19:49:35,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085138695] [2023-08-25 19:49:35,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:49:35,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-25 19:49:35,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:49:35,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-25 19:49:35,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-08-25 19:49:35,974 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 19:49:35,974 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 210 transitions, 3942 flow. Second operand has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:35,975 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:49:35,975 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 19:49:35,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:49:36,712 INFO L124 PetriNetUnfolderBase]: 3307/5978 cut-off events. [2023-08-25 19:49:36,712 INFO L125 PetriNetUnfolderBase]: For 75105/75105 co-relation queries the response was YES. [2023-08-25 19:49:36,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34782 conditions, 5978 events. 3307/5978 cut-off events. For 75105/75105 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 39930 event pairs, 316 based on Foata normal form. 18/5996 useless extension candidates. Maximal degree in co-relation 34748. Up to 1938 conditions per place. [2023-08-25 19:49:36,742 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 141 selfloop transitions, 154 changer transitions 28/323 dead transitions. [2023-08-25 19:49:36,742 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 323 transitions, 5235 flow [2023-08-25 19:49:36,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 19:49:36,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 19:49:36,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2024 transitions. [2023-08-25 19:49:36,746 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4088888888888889 [2023-08-25 19:49:36,746 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2024 transitions. [2023-08-25 19:49:36,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2024 transitions. [2023-08-25 19:49:36,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:49:36,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2024 transitions. [2023-08-25 19:49:36,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 224.88888888888889) internal successors, (2024), 9 states have internal predecessors, (2024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:36,750 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 550.0) internal successors, (5500), 10 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:36,751 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 550.0) internal successors, (5500), 10 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:36,751 INFO L175 Difference]: Start difference. First operand has 129 places, 210 transitions, 3942 flow. Second operand 9 states and 2024 transitions. [2023-08-25 19:49:36,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 323 transitions, 5235 flow [2023-08-25 19:49:36,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 323 transitions, 4932 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 19:49:36,867 INFO L231 Difference]: Finished difference. Result has 133 places, 207 transitions, 3931 flow [2023-08-25 19:49:36,867 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=3657, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3931, PETRI_PLACES=133, PETRI_TRANSITIONS=207} [2023-08-25 19:49:36,867 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 24 predicate places. [2023-08-25 19:49:36,868 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 207 transitions, 3931 flow [2023-08-25 19:49:36,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:36,868 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:49:36,868 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:49:36,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-25 19:49:36,868 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 19:49:36,868 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:49:36,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1166092776, now seen corresponding path program 19 times [2023-08-25 19:49:36,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:49:36,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777927206] [2023-08-25 19:49:36,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:49:36,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:49:36,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:49:37,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:49:37,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:49:37,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777927206] [2023-08-25 19:49:37,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777927206] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:49:37,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:49:37,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-25 19:49:37,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340279754] [2023-08-25 19:49:37,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:49:37,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-25 19:49:37,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:49:37,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-25 19:49:37,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-08-25 19:49:37,010 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 19:49:37,011 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 207 transitions, 3931 flow. Second operand has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:37,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:49:37,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 19:49:37,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:49:37,773 INFO L124 PetriNetUnfolderBase]: 3205/5834 cut-off events. [2023-08-25 19:49:37,773 INFO L125 PetriNetUnfolderBase]: For 73757/73757 co-relation queries the response was YES. [2023-08-25 19:49:37,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34433 conditions, 5834 events. 3205/5834 cut-off events. For 73757/73757 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 39191 event pairs, 304 based on Foata normal form. 14/5848 useless extension candidates. Maximal degree in co-relation 34398. Up to 1966 conditions per place. [2023-08-25 19:49:37,801 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 146 selfloop transitions, 156 changer transitions 24/326 dead transitions. [2023-08-25 19:49:37,802 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 326 transitions, 5215 flow [2023-08-25 19:49:37,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 19:49:37,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 19:49:37,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2029 transitions. [2023-08-25 19:49:37,804 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4098989898989899 [2023-08-25 19:49:37,804 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2029 transitions. [2023-08-25 19:49:37,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2029 transitions. [2023-08-25 19:49:37,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:49:37,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2029 transitions. [2023-08-25 19:49:37,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 225.44444444444446) internal successors, (2029), 9 states have internal predecessors, (2029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:37,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 550.0) internal successors, (5500), 10 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:37,808 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 550.0) internal successors, (5500), 10 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:37,808 INFO L175 Difference]: Start difference. First operand has 133 places, 207 transitions, 3931 flow. Second operand 9 states and 2029 transitions. [2023-08-25 19:49:37,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 326 transitions, 5215 flow [2023-08-25 19:49:37,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 326 transitions, 5082 flow, removed 7 selfloop flow, removed 6 redundant places. [2023-08-25 19:49:37,917 INFO L231 Difference]: Finished difference. Result has 136 places, 207 transitions, 4130 flow [2023-08-25 19:49:37,917 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=3813, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=152, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4130, PETRI_PLACES=136, PETRI_TRANSITIONS=207} [2023-08-25 19:49:37,917 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 27 predicate places. [2023-08-25 19:49:37,918 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 207 transitions, 4130 flow [2023-08-25 19:49:37,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:37,918 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:49:37,918 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:49:37,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-25 19:49:37,918 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 19:49:37,918 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:49:37,919 INFO L85 PathProgramCache]: Analyzing trace with hash 898363850, now seen corresponding path program 20 times [2023-08-25 19:49:37,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:49:37,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284752233] [2023-08-25 19:49:37,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:49:37,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:49:37,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:49:38,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:49:38,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:49:38,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284752233] [2023-08-25 19:49:38,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284752233] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:49:38,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:49:38,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-25 19:49:38,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797693480] [2023-08-25 19:49:38,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:49:38,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-25 19:49:38,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:49:38,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-25 19:49:38,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-08-25 19:49:38,044 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 19:49:38,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 207 transitions, 4130 flow. Second operand has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:38,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:49:38,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 19:49:38,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:49:38,794 INFO L124 PetriNetUnfolderBase]: 2907/5296 cut-off events. [2023-08-25 19:49:38,795 INFO L125 PetriNetUnfolderBase]: For 79645/79645 co-relation queries the response was YES. [2023-08-25 19:49:38,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32020 conditions, 5296 events. 2907/5296 cut-off events. For 79645/79645 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 34760 event pairs, 576 based on Foata normal form. 28/5324 useless extension candidates. Maximal degree in co-relation 31985. Up to 1954 conditions per place. [2023-08-25 19:49:38,821 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 189 selfloop transitions, 116 changer transitions 21/326 dead transitions. [2023-08-25 19:49:38,821 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 326 transitions, 5465 flow [2023-08-25 19:49:38,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 19:49:38,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 19:49:38,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2023 transitions. [2023-08-25 19:49:38,823 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4086868686868687 [2023-08-25 19:49:38,823 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2023 transitions. [2023-08-25 19:49:38,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2023 transitions. [2023-08-25 19:49:38,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:49:38,824 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2023 transitions. [2023-08-25 19:49:38,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 224.77777777777777) internal successors, (2023), 9 states have internal predecessors, (2023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:38,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 550.0) internal successors, (5500), 10 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:38,828 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 550.0) internal successors, (5500), 10 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:38,828 INFO L175 Difference]: Start difference. First operand has 136 places, 207 transitions, 4130 flow. Second operand 9 states and 2023 transitions. [2023-08-25 19:49:38,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 326 transitions, 5465 flow [2023-08-25 19:49:38,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 326 transitions, 5367 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-08-25 19:49:38,931 INFO L231 Difference]: Finished difference. Result has 141 places, 208 transitions, 4267 flow [2023-08-25 19:49:38,931 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=4026, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=109, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4267, PETRI_PLACES=141, PETRI_TRANSITIONS=208} [2023-08-25 19:49:38,931 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 32 predicate places. [2023-08-25 19:49:38,931 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 208 transitions, 4267 flow [2023-08-25 19:49:38,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:38,931 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:49:38,932 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:49:38,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-25 19:49:38,932 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 19:49:38,932 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:49:38,932 INFO L85 PathProgramCache]: Analyzing trace with hash 361431784, now seen corresponding path program 21 times [2023-08-25 19:49:38,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:49:38,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695730927] [2023-08-25 19:49:38,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:49:38,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:49:38,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:49:39,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:49:39,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:49:39,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695730927] [2023-08-25 19:49:39,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695730927] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:49:39,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:49:39,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 19:49:39,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016179584] [2023-08-25 19:49:39,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:49:39,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 19:49:39,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:49:39,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 19:49:39,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-08-25 19:49:39,040 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 19:49:39,041 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 208 transitions, 4267 flow. Second operand has 9 states, 9 states have (on average 210.77777777777777) internal successors, (1897), 9 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:39,041 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:49:39,041 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 19:49:39,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:49:39,835 INFO L124 PetriNetUnfolderBase]: 2908/5309 cut-off events. [2023-08-25 19:49:39,835 INFO L125 PetriNetUnfolderBase]: For 87598/87598 co-relation queries the response was YES. [2023-08-25 19:49:39,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32488 conditions, 5309 events. 2908/5309 cut-off events. For 87598/87598 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 34989 event pairs, 586 based on Foata normal form. 14/5323 useless extension candidates. Maximal degree in co-relation 32453. Up to 1960 conditions per place. [2023-08-25 19:49:39,860 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 195 selfloop transitions, 114 changer transitions 34/343 dead transitions. [2023-08-25 19:49:39,860 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 343 transitions, 5682 flow [2023-08-25 19:49:39,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 19:49:39,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 19:49:39,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2669 transitions. [2023-08-25 19:49:39,864 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4043939393939394 [2023-08-25 19:49:39,865 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2669 transitions. [2023-08-25 19:49:39,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2669 transitions. [2023-08-25 19:49:39,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:49:39,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2669 transitions. [2023-08-25 19:49:39,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 222.41666666666666) internal successors, (2669), 12 states have internal predecessors, (2669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:39,870 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 550.0) internal successors, (7150), 13 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:39,870 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 550.0) internal successors, (7150), 13 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:39,870 INFO L175 Difference]: Start difference. First operand has 141 places, 208 transitions, 4267 flow. Second operand 12 states and 2669 transitions. [2023-08-25 19:49:39,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 343 transitions, 5682 flow [2023-08-25 19:49:39,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 343 transitions, 5580 flow, removed 8 selfloop flow, removed 3 redundant places. [2023-08-25 19:49:39,987 INFO L231 Difference]: Finished difference. Result has 150 places, 205 transitions, 4312 flow [2023-08-25 19:49:39,987 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=4171, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=109, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4312, PETRI_PLACES=150, PETRI_TRANSITIONS=205} [2023-08-25 19:49:39,988 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 41 predicate places. [2023-08-25 19:49:39,988 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 205 transitions, 4312 flow [2023-08-25 19:49:39,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 210.77777777777777) internal successors, (1897), 9 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:39,988 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:49:39,988 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:49:39,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-25 19:49:39,988 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 19:49:39,989 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:49:39,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1397536810, now seen corresponding path program 22 times [2023-08-25 19:49:39,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:49:39,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102077722] [2023-08-25 19:49:39,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:49:39,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:49:40,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:49:40,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:49:40,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:49:40,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102077722] [2023-08-25 19:49:40,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102077722] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:49:40,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:49:40,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 19:49:40,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127795476] [2023-08-25 19:49:40,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:49:40,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 19:49:40,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:49:40,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 19:49:40,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-08-25 19:49:40,111 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 19:49:40,111 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 205 transitions, 4312 flow. Second operand has 9 states, 9 states have (on average 210.77777777777777) internal successors, (1897), 9 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:40,111 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:49:40,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 19:49:40,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:49:40,569 INFO L124 PetriNetUnfolderBase]: 1289/2466 cut-off events. [2023-08-25 19:49:40,569 INFO L125 PetriNetUnfolderBase]: For 32250/32250 co-relation queries the response was YES. [2023-08-25 19:49:40,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15137 conditions, 2466 events. 1289/2466 cut-off events. For 32250/32250 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 14455 event pairs, 382 based on Foata normal form. 180/2646 useless extension candidates. Maximal degree in co-relation 15101. Up to 1670 conditions per place. [2023-08-25 19:49:40,582 INFO L140 encePairwiseOnDemand]: 542/550 looper letters, 98 selfloop transitions, 11 changer transitions 99/208 dead transitions. [2023-08-25 19:49:40,582 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 208 transitions, 3569 flow [2023-08-25 19:49:40,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 19:49:40,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 19:49:40,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2612 transitions. [2023-08-25 19:49:40,584 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39575757575757575 [2023-08-25 19:49:40,584 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2612 transitions. [2023-08-25 19:49:40,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2612 transitions. [2023-08-25 19:49:40,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:49:40,585 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2612 transitions. [2023-08-25 19:49:40,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 217.66666666666666) internal successors, (2612), 12 states have internal predecessors, (2612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:40,589 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 550.0) internal successors, (7150), 13 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:40,590 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 550.0) internal successors, (7150), 13 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:40,590 INFO L175 Difference]: Start difference. First operand has 150 places, 205 transitions, 4312 flow. Second operand 12 states and 2612 transitions. [2023-08-25 19:49:40,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 208 transitions, 3569 flow [2023-08-25 19:49:40,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 208 transitions, 3416 flow, removed 16 selfloop flow, removed 11 redundant places. [2023-08-25 19:49:40,631 INFO L231 Difference]: Finished difference. Result has 153 places, 94 transitions, 1258 flow [2023-08-25 19:49:40,631 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=2604, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1258, PETRI_PLACES=153, PETRI_TRANSITIONS=94} [2023-08-25 19:49:40,632 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 44 predicate places. [2023-08-25 19:49:40,632 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 94 transitions, 1258 flow [2023-08-25 19:49:40,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 210.77777777777777) internal successors, (1897), 9 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:40,632 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:49:40,632 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:49:40,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-25 19:49:40,632 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 19:49:40,633 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:49:40,633 INFO L85 PathProgramCache]: Analyzing trace with hash 24109932, now seen corresponding path program 23 times [2023-08-25 19:49:40,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:49:40,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263433057] [2023-08-25 19:49:40,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:49:40,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:49:40,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:49:40,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:49:40,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:49:40,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263433057] [2023-08-25 19:49:40,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263433057] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:49:40,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:49:40,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 19:49:40,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675620347] [2023-08-25 19:49:40,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:49:40,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 19:49:40,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:49:40,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 19:49:40,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-08-25 19:49:40,728 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 19:49:40,729 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 94 transitions, 1258 flow. Second operand has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:40,729 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:49:40,729 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 19:49:40,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:49:40,884 INFO L124 PetriNetUnfolderBase]: 235/492 cut-off events. [2023-08-25 19:49:40,884 INFO L125 PetriNetUnfolderBase]: For 6048/6048 co-relation queries the response was YES. [2023-08-25 19:49:40,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2944 conditions, 492 events. 235/492 cut-off events. For 6048/6048 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2069 event pairs, 6 based on Foata normal form. 78/570 useless extension candidates. Maximal degree in co-relation 2907. Up to 178 conditions per place. [2023-08-25 19:49:40,886 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 47 selfloop transitions, 15 changer transitions 29/91 dead transitions. [2023-08-25 19:49:40,886 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 91 transitions, 1082 flow [2023-08-25 19:49:40,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 19:49:40,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 19:49:40,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1526 transitions. [2023-08-25 19:49:40,888 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39636363636363636 [2023-08-25 19:49:40,888 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1526 transitions. [2023-08-25 19:49:40,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1526 transitions. [2023-08-25 19:49:40,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:49:40,888 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1526 transitions. [2023-08-25 19:49:40,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 218.0) internal successors, (1526), 7 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:40,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 550.0) internal successors, (4400), 8 states have internal predecessors, (4400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:40,891 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 550.0) internal successors, (4400), 8 states have internal predecessors, (4400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:40,891 INFO L175 Difference]: Start difference. First operand has 153 places, 94 transitions, 1258 flow. Second operand 7 states and 1526 transitions. [2023-08-25 19:49:40,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 91 transitions, 1082 flow [2023-08-25 19:49:40,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 91 transitions, 751 flow, removed 45 selfloop flow, removed 52 redundant places. [2023-08-25 19:49:40,897 INFO L231 Difference]: Finished difference. Result has 76 places, 42 transitions, 277 flow [2023-08-25 19:49:40,898 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=444, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=277, PETRI_PLACES=76, PETRI_TRANSITIONS=42} [2023-08-25 19:49:40,898 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -33 predicate places. [2023-08-25 19:49:40,898 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 42 transitions, 277 flow [2023-08-25 19:49:40,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:40,899 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:49:40,899 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:49:40,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-25 19:49:40,899 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 19:49:40,899 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:49:40,899 INFO L85 PathProgramCache]: Analyzing trace with hash 936710512, now seen corresponding path program 24 times [2023-08-25 19:49:40,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:49:40,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333778334] [2023-08-25 19:49:40,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:49:40,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:49:40,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:49:41,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:49:41,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:49:41,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333778334] [2023-08-25 19:49:41,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333778334] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:49:41,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:49:41,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-25 19:49:41,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881653972] [2023-08-25 19:49:41,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:49:41,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-25 19:49:41,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:49:41,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-25 19:49:41,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-08-25 19:49:41,008 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 19:49:41,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 42 transitions, 277 flow. Second operand has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:41,009 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:49:41,009 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 19:49:41,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:49:41,086 INFO L124 PetriNetUnfolderBase]: 55/130 cut-off events. [2023-08-25 19:49:41,086 INFO L125 PetriNetUnfolderBase]: For 592/592 co-relation queries the response was YES. [2023-08-25 19:49:41,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 603 conditions, 130 events. 55/130 cut-off events. For 592/592 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 357 event pairs, 0 based on Foata normal form. 6/136 useless extension candidates. Maximal degree in co-relation 585. Up to 48 conditions per place. [2023-08-25 19:49:41,086 INFO L140 encePairwiseOnDemand]: 542/550 looper letters, 0 selfloop transitions, 0 changer transitions 44/44 dead transitions. [2023-08-25 19:49:41,087 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 44 transitions, 347 flow [2023-08-25 19:49:41,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 19:49:41,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 19:49:41,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1699 transitions. [2023-08-25 19:49:41,088 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3861363636363636 [2023-08-25 19:49:41,088 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1699 transitions. [2023-08-25 19:49:41,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1699 transitions. [2023-08-25 19:49:41,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:49:41,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1699 transitions. [2023-08-25 19:49:41,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 212.375) internal successors, (1699), 8 states have internal predecessors, (1699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:41,092 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 550.0) internal successors, (4950), 9 states have internal predecessors, (4950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:41,092 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 550.0) internal successors, (4950), 9 states have internal predecessors, (4950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:41,092 INFO L175 Difference]: Start difference. First operand has 76 places, 42 transitions, 277 flow. Second operand 8 states and 1699 transitions. [2023-08-25 19:49:41,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 44 transitions, 347 flow [2023-08-25 19:49:41,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 44 transitions, 238 flow, removed 12 selfloop flow, removed 23 redundant places. [2023-08-25 19:49:41,093 INFO L231 Difference]: Finished difference. Result has 43 places, 0 transitions, 0 flow [2023-08-25 19:49:41,093 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=43, PETRI_TRANSITIONS=0} [2023-08-25 19:49:41,094 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -66 predicate places. [2023-08-25 19:49:41,094 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 0 transitions, 0 flow [2023-08-25 19:49:41,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:49:41,096 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (109 of 110 remaining) [2023-08-25 19:49:41,096 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (108 of 110 remaining) [2023-08-25 19:49:41,096 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (107 of 110 remaining) [2023-08-25 19:49:41,097 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (106 of 110 remaining) [2023-08-25 19:49:41,097 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (105 of 110 remaining) [2023-08-25 19:49:41,097 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (104 of 110 remaining) [2023-08-25 19:49:41,097 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (103 of 110 remaining) [2023-08-25 19:49:41,097 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (102 of 110 remaining) [2023-08-25 19:49:41,097 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (101 of 110 remaining) [2023-08-25 19:49:41,097 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (100 of 110 remaining) [2023-08-25 19:49:41,097 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (99 of 110 remaining) [2023-08-25 19:49:41,097 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (98 of 110 remaining) [2023-08-25 19:49:41,097 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (97 of 110 remaining) [2023-08-25 19:49:41,097 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (96 of 110 remaining) [2023-08-25 19:49:41,098 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (95 of 110 remaining) [2023-08-25 19:49:41,098 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (94 of 110 remaining) [2023-08-25 19:49:41,098 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (93 of 110 remaining) [2023-08-25 19:49:41,098 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (92 of 110 remaining) [2023-08-25 19:49:41,098 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (91 of 110 remaining) [2023-08-25 19:49:41,098 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (90 of 110 remaining) [2023-08-25 19:49:41,098 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (89 of 110 remaining) [2023-08-25 19:49:41,098 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (88 of 110 remaining) [2023-08-25 19:49:41,098 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (87 of 110 remaining) [2023-08-25 19:49:41,098 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (86 of 110 remaining) [2023-08-25 19:49:41,098 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (85 of 110 remaining) [2023-08-25 19:49:41,098 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (84 of 110 remaining) [2023-08-25 19:49:41,098 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (83 of 110 remaining) [2023-08-25 19:49:41,099 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (82 of 110 remaining) [2023-08-25 19:49:41,099 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (81 of 110 remaining) [2023-08-25 19:49:41,099 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (80 of 110 remaining) [2023-08-25 19:49:41,099 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONDATA_RACE (79 of 110 remaining) [2023-08-25 19:49:41,099 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONDATA_RACE (78 of 110 remaining) [2023-08-25 19:49:41,099 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (77 of 110 remaining) [2023-08-25 19:49:41,099 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (76 of 110 remaining) [2023-08-25 19:49:41,099 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (75 of 110 remaining) [2023-08-25 19:49:41,099 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (74 of 110 remaining) [2023-08-25 19:49:41,099 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (73 of 110 remaining) [2023-08-25 19:49:41,099 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (72 of 110 remaining) [2023-08-25 19:49:41,099 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (71 of 110 remaining) [2023-08-25 19:49:41,099 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (70 of 110 remaining) [2023-08-25 19:49:41,099 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (69 of 110 remaining) [2023-08-25 19:49:41,100 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (68 of 110 remaining) [2023-08-25 19:49:41,100 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (67 of 110 remaining) [2023-08-25 19:49:41,100 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (66 of 110 remaining) [2023-08-25 19:49:41,100 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (65 of 110 remaining) [2023-08-25 19:49:41,100 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (64 of 110 remaining) [2023-08-25 19:49:41,100 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (63 of 110 remaining) [2023-08-25 19:49:41,100 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (62 of 110 remaining) [2023-08-25 19:49:41,100 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (61 of 110 remaining) [2023-08-25 19:49:41,100 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (60 of 110 remaining) [2023-08-25 19:49:41,100 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (59 of 110 remaining) [2023-08-25 19:49:41,100 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONASSERT (58 of 110 remaining) [2023-08-25 19:49:41,100 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (57 of 110 remaining) [2023-08-25 19:49:41,100 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (56 of 110 remaining) [2023-08-25 19:49:41,100 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (55 of 110 remaining) [2023-08-25 19:49:41,101 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (54 of 110 remaining) [2023-08-25 19:49:41,101 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONDATA_RACE (53 of 110 remaining) [2023-08-25 19:49:41,101 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONDATA_RACE (52 of 110 remaining) [2023-08-25 19:49:41,101 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONDATA_RACE (51 of 110 remaining) [2023-08-25 19:49:41,101 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONDATA_RACE (50 of 110 remaining) [2023-08-25 19:49:41,101 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err4ASSERT_VIOLATIONDATA_RACE (49 of 110 remaining) [2023-08-25 19:49:41,101 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err5ASSERT_VIOLATIONDATA_RACE (48 of 110 remaining) [2023-08-25 19:49:41,101 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err6ASSERT_VIOLATIONDATA_RACE (47 of 110 remaining) [2023-08-25 19:49:41,101 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err7ASSERT_VIOLATIONDATA_RACE (46 of 110 remaining) [2023-08-25 19:49:41,101 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err8ASSERT_VIOLATIONDATA_RACE (45 of 110 remaining) [2023-08-25 19:49:41,101 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err9ASSERT_VIOLATIONDATA_RACE (44 of 110 remaining) [2023-08-25 19:49:41,101 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err10ASSERT_VIOLATIONDATA_RACE (43 of 110 remaining) [2023-08-25 19:49:41,101 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (42 of 110 remaining) [2023-08-25 19:49:41,101 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (41 of 110 remaining) [2023-08-25 19:49:41,102 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (40 of 110 remaining) [2023-08-25 19:49:41,102 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (39 of 110 remaining) [2023-08-25 19:49:41,102 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (38 of 110 remaining) [2023-08-25 19:49:41,102 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (37 of 110 remaining) [2023-08-25 19:49:41,102 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (36 of 110 remaining) [2023-08-25 19:49:41,102 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (35 of 110 remaining) [2023-08-25 19:49:41,102 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (34 of 110 remaining) [2023-08-25 19:49:41,102 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (33 of 110 remaining) [2023-08-25 19:49:41,102 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (32 of 110 remaining) [2023-08-25 19:49:41,102 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (31 of 110 remaining) [2023-08-25 19:49:41,102 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (30 of 110 remaining) [2023-08-25 19:49:41,102 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (29 of 110 remaining) [2023-08-25 19:49:41,102 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (28 of 110 remaining) [2023-08-25 19:49:41,103 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (27 of 110 remaining) [2023-08-25 19:49:41,103 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (26 of 110 remaining) [2023-08-25 19:49:41,103 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (25 of 110 remaining) [2023-08-25 19:49:41,103 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (24 of 110 remaining) [2023-08-25 19:49:41,103 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (23 of 110 remaining) [2023-08-25 19:49:41,103 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (22 of 110 remaining) [2023-08-25 19:49:41,103 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (21 of 110 remaining) [2023-08-25 19:49:41,103 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (20 of 110 remaining) [2023-08-25 19:49:41,103 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (19 of 110 remaining) [2023-08-25 19:49:41,103 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (18 of 110 remaining) [2023-08-25 19:49:41,103 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (17 of 110 remaining) [2023-08-25 19:49:41,103 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (16 of 110 remaining) [2023-08-25 19:49:41,103 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (15 of 110 remaining) [2023-08-25 19:49:41,104 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (14 of 110 remaining) [2023-08-25 19:49:41,104 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (13 of 110 remaining) [2023-08-25 19:49:41,104 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONDATA_RACE (12 of 110 remaining) [2023-08-25 19:49:41,104 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONDATA_RACE (11 of 110 remaining) [2023-08-25 19:49:41,104 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONDATA_RACE (10 of 110 remaining) [2023-08-25 19:49:41,104 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONDATA_RACE (9 of 110 remaining) [2023-08-25 19:49:41,104 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONDATA_RACE (8 of 110 remaining) [2023-08-25 19:49:41,104 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONDATA_RACE (7 of 110 remaining) [2023-08-25 19:49:41,104 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err4ASSERT_VIOLATIONDATA_RACE (6 of 110 remaining) [2023-08-25 19:49:41,104 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err5ASSERT_VIOLATIONDATA_RACE (5 of 110 remaining) [2023-08-25 19:49:41,104 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err6ASSERT_VIOLATIONDATA_RACE (4 of 110 remaining) [2023-08-25 19:49:41,104 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err7ASSERT_VIOLATIONDATA_RACE (3 of 110 remaining) [2023-08-25 19:49:41,104 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err8ASSERT_VIOLATIONDATA_RACE (2 of 110 remaining) [2023-08-25 19:49:41,105 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err9ASSERT_VIOLATIONDATA_RACE (1 of 110 remaining) [2023-08-25 19:49:41,105 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err10ASSERT_VIOLATIONDATA_RACE (0 of 110 remaining) [2023-08-25 19:49:41,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-25 19:49:41,105 INFO L445 BasicCegarLoop]: Path program histogram: [24, 1] [2023-08-25 19:49:41,109 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 19:49:41,109 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 19:49:41,111 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 07:49:41 BasicIcfg [2023-08-25 19:49:41,111 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 19:49:41,111 INFO L158 Benchmark]: Toolchain (without parser) took 32618.74ms. Allocated memory was 367.0MB in the beginning and 3.4GB in the end (delta: 3.1GB). Free memory was 343.5MB in the beginning and 2.3GB in the end (delta: -2.0GB). Peak memory consumption was 1.1GB. Max. memory is 16.0GB. [2023-08-25 19:49:41,111 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 367.0MB. Free memory was 343.4MB in the beginning and 343.3MB in the end (delta: 153.2kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 19:49:41,112 INFO L158 Benchmark]: CACSL2BoogieTranslator took 209.33ms. Allocated memory is still 367.0MB. Free memory was 343.1MB in the beginning and 330.9MB in the end (delta: 12.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-25 19:49:41,112 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.94ms. Allocated memory is still 367.0MB. Free memory was 330.9MB in the beginning and 327.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-25 19:49:41,112 INFO L158 Benchmark]: Boogie Preprocessor took 26.89ms. Allocated memory is still 367.0MB. Free memory was 327.8MB in the beginning and 325.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 19:49:41,112 INFO L158 Benchmark]: RCFGBuilder took 678.55ms. Allocated memory is still 367.0MB. Free memory was 325.7MB in the beginning and 326.0MB in the end (delta: -280.6kB). Peak memory consumption was 47.3MB. Max. memory is 16.0GB. [2023-08-25 19:49:41,112 INFO L158 Benchmark]: TraceAbstraction took 31640.83ms. Allocated memory was 367.0MB in the beginning and 3.4GB in the end (delta: 3.1GB). Free memory was 325.0MB in the beginning and 2.3GB in the end (delta: -2.0GB). Peak memory consumption was 1.1GB. Max. memory is 16.0GB. [2023-08-25 19:49:41,113 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 367.0MB. Free memory was 343.4MB in the beginning and 343.3MB in the end (delta: 153.2kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 209.33ms. Allocated memory is still 367.0MB. Free memory was 343.1MB in the beginning and 330.9MB in the end (delta: 12.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 57.94ms. Allocated memory is still 367.0MB. Free memory was 330.9MB in the beginning and 327.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 26.89ms. Allocated memory is still 367.0MB. Free memory was 327.8MB in the beginning and 325.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 678.55ms. Allocated memory is still 367.0MB. Free memory was 325.7MB in the beginning and 326.0MB in the end (delta: -280.6kB). Peak memory consumption was 47.3MB. Max. memory is 16.0GB. * TraceAbstraction took 31640.83ms. Allocated memory was 367.0MB in the beginning and 3.4GB in the end (delta: 3.1GB). Free memory was 325.0MB in the beginning and 2.3GB in the end (delta: -2.0GB). Peak memory consumption was 1.1GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.1s, 278 PlacesBefore, 109 PlacesAfterwards, 270 TransitionsBefore, 96 TransitionsAfterwards, 7752 CoEnabledTransitionPairs, 9 FixpointIterations, 181 TrivialSequentialCompositions, 61 ConcurrentSequentialCompositions, 16 TrivialYvCompositions, 0 ConcurrentYvCompositions, 5 ChoiceCompositions, 263 TotalNumberOfCompositions, 50408 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 15258, independent: 14504, independent conditional: 0, independent unconditional: 14504, dependent: 754, dependent conditional: 0, dependent unconditional: 754, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3161, independent: 3116, independent conditional: 0, independent unconditional: 3116, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 15258, independent: 11388, independent conditional: 0, independent unconditional: 11388, dependent: 709, dependent conditional: 0, dependent unconditional: 709, unknown: 3161, unknown conditional: 0, unknown unconditional: 3161] , Statistics on independence cache: Total cache size (in pairs): 833, Positive cache size: 795, Positive conditional cache size: 0, Positive unconditional cache size: 795, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 95]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 95]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 124]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 125]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 126]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 127]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 128]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 129]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 130]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 131]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 134]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 134]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 134]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 134]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 134]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 134]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 140]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 141]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 142]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 143]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 145]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 21]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 108]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 108]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 111]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 111]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 111]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 114]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 114]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 359 locations, 110 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 31.5s, OverallIterations: 25, TraceHistogramMax: 1, PathProgramHistogramMax: 24, EmptinessCheckTime: 0.0s, AutomataDifference: 21.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1689 SdHoareTripleChecker+Valid, 4.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1689 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 3.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 410 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9122 IncrementalHoareTripleChecker+Invalid, 9532 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 410 mSolverCounterUnsat, 0 mSDtfsCounter, 9122 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 230 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4312occurred in iteration=22, InterpolantAutomatonStates: 197, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 817 NumberOfCodeBlocks, 817 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 792 ConstructedInterpolants, 0 QuantifiedInterpolants, 2188 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 25 InterpolantComputations, 25 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 63 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 19:49:41,127 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...