/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/weaver/parallel-bakery-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 05:24:44,648 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 05:24:44,717 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 05:24:44,720 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 05:24:44,721 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 05:24:44,748 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 05:24:44,749 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 05:24:44,752 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 05:24:44,753 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 05:24:44,756 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 05:24:44,756 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 05:24:44,757 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 05:24:44,757 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 05:24:44,758 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 05:24:44,758 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 05:24:44,758 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 05:24:44,758 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 05:24:44,758 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 05:24:44,758 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 05:24:44,759 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 05:24:44,759 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 05:24:44,759 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 05:24:44,759 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 05:24:44,760 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 05:24:44,760 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 05:24:44,760 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 05:24:44,760 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 05:24:44,760 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 05:24:44,760 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 05:24:44,761 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 05:24:44,761 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 05:24:44,761 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 05:24:44,761 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 05:24:44,762 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 05:24:44,762 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 05:24:44,762 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 05:24:44,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 05:24:45,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 05:24:45,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 05:24:45,013 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 05:24:45,014 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 05:24:45,015 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-bakery-3.wvr.c [2023-08-25 05:24:45,944 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 05:24:46,127 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 05:24:46,127 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bakery-3.wvr.c [2023-08-25 05:24:46,137 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fca77ac07/fbccfd747ec4422788601623320bca5f/FLAG4a635ab5f [2023-08-25 05:24:46,149 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fca77ac07/fbccfd747ec4422788601623320bca5f [2023-08-25 05:24:46,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 05:24:46,154 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 05:24:46,154 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 05:24:46,155 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 05:24:46,156 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 05:24:46,157 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:24:46" (1/1) ... [2023-08-25 05:24:46,158 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60354b2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:24:46, skipping insertion in model container [2023-08-25 05:24:46,158 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:24:46" (1/1) ... [2023-08-25 05:24:46,185 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 05:24:46,348 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 05:24:46,359 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 05:24:46,411 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 05:24:46,417 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 05:24:46,417 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 05:24:46,423 INFO L206 MainTranslator]: Completed translation [2023-08-25 05:24:46,424 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:24:46 WrapperNode [2023-08-25 05:24:46,424 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 05:24:46,425 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 05:24:46,425 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 05:24:46,425 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 05:24:46,430 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:24:46" (1/1) ... [2023-08-25 05:24:46,450 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:24:46" (1/1) ... [2023-08-25 05:24:46,482 INFO L138 Inliner]: procedures = 22, calls = 111, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 668 [2023-08-25 05:24:46,482 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 05:24:46,483 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 05:24:46,483 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 05:24:46,483 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 05:24:46,495 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:24:46" (1/1) ... [2023-08-25 05:24:46,495 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:24:46" (1/1) ... [2023-08-25 05:24:46,502 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:24:46" (1/1) ... [2023-08-25 05:24:46,502 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:24:46" (1/1) ... [2023-08-25 05:24:46,514 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:24:46" (1/1) ... [2023-08-25 05:24:46,516 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:24:46" (1/1) ... [2023-08-25 05:24:46,517 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:24:46" (1/1) ... [2023-08-25 05:24:46,519 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:24:46" (1/1) ... [2023-08-25 05:24:46,532 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 05:24:46,533 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 05:24:46,533 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 05:24:46,533 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 05:24:46,534 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:24:46" (1/1) ... [2023-08-25 05:24:46,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 05:24:46,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:24:46,553 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 05:24:46,557 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 05:24:46,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 05:24:46,575 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 05:24:46,575 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 05:24:46,576 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 05:24:46,576 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 05:24:46,576 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-25 05:24:46,576 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-25 05:24:46,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 05:24:46,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 05:24:46,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 05:24:46,576 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 05:24:46,576 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 05:24:46,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 05:24:46,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 05:24:46,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 05:24:46,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 05:24:46,578 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 05:24:46,663 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 05:24:46,664 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 05:24:47,292 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 05:24:47,607 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 05:24:47,607 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 05:24:47,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:24:47 BoogieIcfgContainer [2023-08-25 05:24:47,610 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 05:24:47,611 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 05:24:47,611 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 05:24:47,613 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 05:24:47,614 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 05:24:46" (1/3) ... [2023-08-25 05:24:47,614 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72ecc878 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:24:47, skipping insertion in model container [2023-08-25 05:24:47,614 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:24:46" (2/3) ... [2023-08-25 05:24:47,615 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72ecc878 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:24:47, skipping insertion in model container [2023-08-25 05:24:47,615 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:24:47" (3/3) ... [2023-08-25 05:24:47,616 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bakery-3.wvr.c [2023-08-25 05:24:47,627 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 05:24:47,627 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 115 error locations. [2023-08-25 05:24:47,628 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 05:24:47,700 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-25 05:24:47,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 373 places, 371 transitions, 766 flow [2023-08-25 05:24:47,794 INFO L124 PetriNetUnfolderBase]: 8/368 cut-off events. [2023-08-25 05:24:47,794 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 05:24:47,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 381 conditions, 368 events. 8/368 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 728 event pairs, 0 based on Foata normal form. 0/245 useless extension candidates. Maximal degree in co-relation 275. Up to 2 conditions per place. [2023-08-25 05:24:47,798 INFO L82 GeneralOperation]: Start removeDead. Operand has 373 places, 371 transitions, 766 flow [2023-08-25 05:24:47,804 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 359 places, 357 transitions, 732 flow [2023-08-25 05:24:47,807 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 05:24:47,812 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 359 places, 357 transitions, 732 flow [2023-08-25 05:24:47,814 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 359 places, 357 transitions, 732 flow [2023-08-25 05:24:47,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 359 places, 357 transitions, 732 flow [2023-08-25 05:24:47,862 INFO L124 PetriNetUnfolderBase]: 8/357 cut-off events. [2023-08-25 05:24:47,862 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 05:24:47,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 357 events. 8/357 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 723 event pairs, 0 based on Foata normal form. 0/235 useless extension candidates. Maximal degree in co-relation 275. Up to 2 conditions per place. [2023-08-25 05:24:47,868 INFO L119 LiptonReduction]: Number of co-enabled transitions 18630 [2023-08-25 05:24:56,718 INFO L134 LiptonReduction]: Checked pairs total: 271751 [2023-08-25 05:24:56,718 INFO L136 LiptonReduction]: Total number of compositions: 300 [2023-08-25 05:24:56,728 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 05:24:56,732 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;@22f70d03, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 05:24:56,732 INFO L358 AbstractCegarLoop]: Starting to check reachability of 211 error locations. [2023-08-25 05:24:56,733 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 05:24:56,733 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 05:24:56,733 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 05:24:56,733 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:24:56,733 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 05:24:56,734 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 05:24:56,737 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:24:56,737 INFO L85 PathProgramCache]: Analyzing trace with hash 2317, now seen corresponding path program 1 times [2023-08-25 05:24:56,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:24:56,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508061897] [2023-08-25 05:24:56,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:24:56,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:24:56,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:24:56,802 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 05:24:56,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:24:56,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508061897] [2023-08-25 05:24:56,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508061897] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:24:56,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:24:56,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 05:24:56,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181094011] [2023-08-25 05:24:56,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:24:56,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 05:24:56,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:24:56,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 05:24:56,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 05:24:56,826 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 671 [2023-08-25 05:24:56,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 163 transitions, 344 flow. Second operand has 2 states, 2 states have (on average 233.5) internal successors, (467), 2 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:24:56,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:24:56,829 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 671 [2023-08-25 05:24:56,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:24:58,052 INFO L124 PetriNetUnfolderBase]: 11268/16393 cut-off events. [2023-08-25 05:24:58,052 INFO L125 PetriNetUnfolderBase]: For 501/501 co-relation queries the response was YES. [2023-08-25 05:24:58,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33340 conditions, 16393 events. 11268/16393 cut-off events. For 501/501 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 83227 event pairs, 11268 based on Foata normal form. 0/16393 useless extension candidates. Maximal degree in co-relation 31118. Up to 16394 conditions per place. [2023-08-25 05:24:58,126 INFO L140 encePairwiseOnDemand]: 557/671 looper letters, 49 selfloop transitions, 0 changer transitions 0/49 dead transitions. [2023-08-25 05:24:58,127 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 49 transitions, 214 flow [2023-08-25 05:24:58,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 05:24:58,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 05:24:58,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 629 transitions. [2023-08-25 05:24:58,139 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46870342771982115 [2023-08-25 05:24:58,140 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 629 transitions. [2023-08-25 05:24:58,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 629 transitions. [2023-08-25 05:24:58,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:24:58,144 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 629 transitions. [2023-08-25 05:24:58,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 314.5) internal successors, (629), 2 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:24:58,155 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 671.0) internal successors, (2013), 3 states have internal predecessors, (2013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:24:58,156 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 671.0) internal successors, (2013), 3 states have internal predecessors, (2013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:24:58,158 INFO L175 Difference]: Start difference. First operand has 173 places, 163 transitions, 344 flow. Second operand 2 states and 629 transitions. [2023-08-25 05:24:58,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 49 transitions, 214 flow [2023-08-25 05:24:58,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 49 transitions, 202 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-25 05:24:58,169 INFO L231 Difference]: Finished difference. Result has 54 places, 49 transitions, 104 flow [2023-08-25 05:24:58,170 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=104, PETRI_PLACES=54, PETRI_TRANSITIONS=49} [2023-08-25 05:24:58,173 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -119 predicate places. [2023-08-25 05:24:58,173 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 49 transitions, 104 flow [2023-08-25 05:24:58,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 233.5) internal successors, (467), 2 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:24:58,173 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:24:58,174 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:24:58,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 05:24:58,174 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 05:24:58,174 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:24:58,174 INFO L85 PathProgramCache]: Analyzing trace with hash 23469926, now seen corresponding path program 1 times [2023-08-25 05:24:58,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:24:58,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144389166] [2023-08-25 05:24:58,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:24:58,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:24:58,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:24:59,143 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 05:24:59,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:24:59,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144389166] [2023-08-25 05:24:59,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144389166] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:24:59,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:24:59,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 05:24:59,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940769378] [2023-08-25 05:24:59,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:24:59,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 05:24:59,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:24:59,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 05:24:59,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-25 05:24:59,146 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 671 [2023-08-25 05:24:59,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 49 transitions, 104 flow. Second operand has 6 states, 6 states have (on average 232.16666666666666) internal successors, (1393), 6 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:24:59,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:24:59,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 671 [2023-08-25 05:24:59,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:25:00,607 INFO L124 PetriNetUnfolderBase]: 15316/22269 cut-off events. [2023-08-25 05:25:00,607 INFO L125 PetriNetUnfolderBase]: For 168/168 co-relation queries the response was YES. [2023-08-25 05:25:00,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44766 conditions, 22269 events. 15316/22269 cut-off events. For 168/168 co-relation queries the response was YES. Maximal size of possible extension queue 432. Compared 123200 event pairs, 3737 based on Foata normal form. 224/22493 useless extension candidates. Maximal degree in co-relation 44763. Up to 15516 conditions per place. [2023-08-25 05:25:00,671 INFO L140 encePairwiseOnDemand]: 661/671 looper letters, 125 selfloop transitions, 16 changer transitions 0/141 dead transitions. [2023-08-25 05:25:00,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 141 transitions, 575 flow [2023-08-25 05:25:00,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 05:25:00,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 05:25:00,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1486 transitions. [2023-08-25 05:25:00,675 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3691008445106806 [2023-08-25 05:25:00,676 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1486 transitions. [2023-08-25 05:25:00,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1486 transitions. [2023-08-25 05:25:00,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:25:00,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1486 transitions. [2023-08-25 05:25:00,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 247.66666666666666) internal successors, (1486), 6 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:00,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 671.0) internal successors, (4697), 7 states have internal predecessors, (4697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:00,685 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 671.0) internal successors, (4697), 7 states have internal predecessors, (4697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:00,685 INFO L175 Difference]: Start difference. First operand has 54 places, 49 transitions, 104 flow. Second operand 6 states and 1486 transitions. [2023-08-25 05:25:00,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 141 transitions, 575 flow [2023-08-25 05:25:00,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 141 transitions, 575 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:25:00,687 INFO L231 Difference]: Finished difference. Result has 63 places, 64 transitions, 215 flow [2023-08-25 05:25:00,688 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=215, PETRI_PLACES=63, PETRI_TRANSITIONS=64} [2023-08-25 05:25:00,689 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -110 predicate places. [2023-08-25 05:25:00,689 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 64 transitions, 215 flow [2023-08-25 05:25:00,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 232.16666666666666) internal successors, (1393), 6 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:00,690 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:25:00,692 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:25:00,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 05:25:00,693 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 05:25:00,698 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:25:00,698 INFO L85 PathProgramCache]: Analyzing trace with hash 345369110, now seen corresponding path program 2 times [2023-08-25 05:25:00,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:25:00,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84973995] [2023-08-25 05:25:00,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:25:00,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:25:00,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:25:00,963 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 05:25:00,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:25:00,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84973995] [2023-08-25 05:25:00,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84973995] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:25:00,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:25:00,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-25 05:25:00,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892496284] [2023-08-25 05:25:00,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:25:00,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 05:25:00,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:25:00,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 05:25:00,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-08-25 05:25:00,967 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 671 [2023-08-25 05:25:00,969 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 64 transitions, 215 flow. Second operand has 9 states, 9 states have (on average 228.44444444444446) internal successors, (2056), 9 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:00,969 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:25:00,969 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 671 [2023-08-25 05:25:00,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:25:03,044 INFO L124 PetriNetUnfolderBase]: 17174/25394 cut-off events. [2023-08-25 05:25:03,045 INFO L125 PetriNetUnfolderBase]: For 8223/8223 co-relation queries the response was YES. [2023-08-25 05:25:03,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59672 conditions, 25394 events. 17174/25394 cut-off events. For 8223/8223 co-relation queries the response was YES. Maximal size of possible extension queue 430. Compared 144641 event pairs, 7587 based on Foata normal form. 1/25395 useless extension candidates. Maximal degree in co-relation 59664. Up to 11736 conditions per place. [2023-08-25 05:25:03,138 INFO L140 encePairwiseOnDemand]: 663/671 looper letters, 256 selfloop transitions, 15 changer transitions 29/300 dead transitions. [2023-08-25 05:25:03,138 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 300 transitions, 1541 flow [2023-08-25 05:25:03,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 05:25:03,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 05:25:03,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2707 transitions. [2023-08-25 05:25:03,143 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3667524725646931 [2023-08-25 05:25:03,143 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2707 transitions. [2023-08-25 05:25:03,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2707 transitions. [2023-08-25 05:25:03,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:25:03,144 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2707 transitions. [2023-08-25 05:25:03,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 246.0909090909091) internal successors, (2707), 11 states have internal predecessors, (2707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:03,154 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 671.0) internal successors, (8052), 12 states have internal predecessors, (8052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:03,157 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 671.0) internal successors, (8052), 12 states have internal predecessors, (8052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:03,157 INFO L175 Difference]: Start difference. First operand has 63 places, 64 transitions, 215 flow. Second operand 11 states and 2707 transitions. [2023-08-25 05:25:03,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 300 transitions, 1541 flow [2023-08-25 05:25:03,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 300 transitions, 1541 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:25:03,199 INFO L231 Difference]: Finished difference. Result has 77 places, 80 transitions, 307 flow [2023-08-25 05:25:03,200 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=307, PETRI_PLACES=77, PETRI_TRANSITIONS=80} [2023-08-25 05:25:03,201 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -96 predicate places. [2023-08-25 05:25:03,201 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 80 transitions, 307 flow [2023-08-25 05:25:03,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 228.44444444444446) internal successors, (2056), 9 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:03,203 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:25:03,203 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:25:03,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 05:25:03,205 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 05:25:03,206 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:25:03,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1453892748, now seen corresponding path program 3 times [2023-08-25 05:25:03,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:25:03,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915327531] [2023-08-25 05:25:03,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:25:03,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:25:03,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:25:03,371 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 05:25:03,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:25:03,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915327531] [2023-08-25 05:25:03,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915327531] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:25:03,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:25:03,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:25:03,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811923436] [2023-08-25 05:25:03,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:25:03,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:25:03,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:25:03,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:25:03,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:25:03,375 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 671 [2023-08-25 05:25:03,376 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 80 transitions, 307 flow. Second operand has 3 states, 3 states have (on average 246.33333333333334) internal successors, (739), 3 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:03,376 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:25:03,376 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 671 [2023-08-25 05:25:03,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:25:04,890 INFO L124 PetriNetUnfolderBase]: 15196/22725 cut-off events. [2023-08-25 05:25:04,890 INFO L125 PetriNetUnfolderBase]: For 7061/7061 co-relation queries the response was YES. [2023-08-25 05:25:04,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57147 conditions, 22725 events. 15196/22725 cut-off events. For 7061/7061 co-relation queries the response was YES. Maximal size of possible extension queue 385. Compared 132641 event pairs, 9308 based on Foata normal form. 382/23107 useless extension candidates. Maximal degree in co-relation 57134. Up to 15488 conditions per place. [2023-08-25 05:25:05,094 INFO L140 encePairwiseOnDemand]: 667/671 looper letters, 118 selfloop transitions, 2 changer transitions 0/120 dead transitions. [2023-08-25 05:25:05,094 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 120 transitions, 693 flow [2023-08-25 05:25:05,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:25:05,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:25:05,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 768 transitions. [2023-08-25 05:25:05,096 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38152011922503726 [2023-08-25 05:25:05,097 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 768 transitions. [2023-08-25 05:25:05,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 768 transitions. [2023-08-25 05:25:05,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:25:05,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 768 transitions. [2023-08-25 05:25:05,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 256.0) internal successors, (768), 3 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:05,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 671.0) internal successors, (2684), 4 states have internal predecessors, (2684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:05,101 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 671.0) internal successors, (2684), 4 states have internal predecessors, (2684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:05,101 INFO L175 Difference]: Start difference. First operand has 77 places, 80 transitions, 307 flow. Second operand 3 states and 768 transitions. [2023-08-25 05:25:05,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 120 transitions, 693 flow [2023-08-25 05:25:05,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 120 transitions, 691 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-25 05:25:05,166 INFO L231 Difference]: Finished difference. Result has 77 places, 80 transitions, 315 flow [2023-08-25 05:25:05,166 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=315, PETRI_PLACES=77, PETRI_TRANSITIONS=80} [2023-08-25 05:25:05,167 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -96 predicate places. [2023-08-25 05:25:05,167 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 80 transitions, 315 flow [2023-08-25 05:25:05,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 246.33333333333334) internal successors, (739), 3 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:05,169 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:25:05,169 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:25:05,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 05:25:05,169 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 05:25:05,169 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:25:05,169 INFO L85 PathProgramCache]: Analyzing trace with hash 117761978, now seen corresponding path program 4 times [2023-08-25 05:25:05,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:25:05,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063255191] [2023-08-25 05:25:05,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:25:05,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:25:05,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:25:05,321 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 05:25:05,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:25:05,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063255191] [2023-08-25 05:25:05,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063255191] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:25:05,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:25:05,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:25:05,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682130825] [2023-08-25 05:25:05,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:25:05,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:25:05,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:25:05,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:25:05,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:25:05,323 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 671 [2023-08-25 05:25:05,324 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 80 transitions, 315 flow. Second operand has 3 states, 3 states have (on average 246.33333333333334) internal successors, (739), 3 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:05,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:25:05,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 671 [2023-08-25 05:25:05,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:25:06,854 INFO L124 PetriNetUnfolderBase]: 14810/22283 cut-off events. [2023-08-25 05:25:06,854 INFO L125 PetriNetUnfolderBase]: For 10484/10484 co-relation queries the response was YES. [2023-08-25 05:25:06,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58327 conditions, 22283 events. 14810/22283 cut-off events. For 10484/10484 co-relation queries the response was YES. Maximal size of possible extension queue 381. Compared 129880 event pairs, 9514 based on Foata normal form. 246/22529 useless extension candidates. Maximal degree in co-relation 58313. Up to 16332 conditions per place. [2023-08-25 05:25:06,932 INFO L140 encePairwiseOnDemand]: 667/671 looper letters, 122 selfloop transitions, 2 changer transitions 1/125 dead transitions. [2023-08-25 05:25:06,932 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 125 transitions, 749 flow [2023-08-25 05:25:06,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:25:06,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:25:06,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 768 transitions. [2023-08-25 05:25:06,934 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38152011922503726 [2023-08-25 05:25:06,934 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 768 transitions. [2023-08-25 05:25:06,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 768 transitions. [2023-08-25 05:25:06,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:25:06,934 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 768 transitions. [2023-08-25 05:25:06,936 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 256.0) internal successors, (768), 3 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:06,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 671.0) internal successors, (2684), 4 states have internal predecessors, (2684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:06,938 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 671.0) internal successors, (2684), 4 states have internal predecessors, (2684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:06,938 INFO L175 Difference]: Start difference. First operand has 77 places, 80 transitions, 315 flow. Second operand 3 states and 768 transitions. [2023-08-25 05:25:06,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 125 transitions, 749 flow [2023-08-25 05:25:06,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 125 transitions, 741 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 05:25:06,976 INFO L231 Difference]: Finished difference. Result has 78 places, 80 transitions, 321 flow [2023-08-25 05:25:06,976 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=321, PETRI_PLACES=78, PETRI_TRANSITIONS=80} [2023-08-25 05:25:06,976 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -95 predicate places. [2023-08-25 05:25:06,977 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 80 transitions, 321 flow [2023-08-25 05:25:06,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 246.33333333333334) internal successors, (739), 3 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:06,977 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:25:06,977 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:25:06,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 05:25:06,977 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 05:25:06,977 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:25:06,978 INFO L85 PathProgramCache]: Analyzing trace with hash -226859222, now seen corresponding path program 5 times [2023-08-25 05:25:06,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:25:06,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907235966] [2023-08-25 05:25:06,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:25:06,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:25:07,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:25:07,237 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 05:25:07,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:25:07,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907235966] [2023-08-25 05:25:07,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907235966] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:25:07,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:25:07,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-25 05:25:07,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096702758] [2023-08-25 05:25:07,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:25:07,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 05:25:07,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:25:07,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 05:25:07,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-08-25 05:25:07,243 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 671 [2023-08-25 05:25:07,245 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 80 transitions, 321 flow. Second operand has 9 states, 9 states have (on average 228.44444444444446) internal successors, (2056), 9 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:07,245 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:25:07,245 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 671 [2023-08-25 05:25:07,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:25:09,114 INFO L124 PetriNetUnfolderBase]: 15505/23475 cut-off events. [2023-08-25 05:25:09,114 INFO L125 PetriNetUnfolderBase]: For 11307/11307 co-relation queries the response was YES. [2023-08-25 05:25:09,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62492 conditions, 23475 events. 15505/23475 cut-off events. For 11307/11307 co-relation queries the response was YES. Maximal size of possible extension queue 380. Compared 136833 event pairs, 6623 based on Foata normal form. 1/23476 useless extension candidates. Maximal degree in co-relation 62477. Up to 10030 conditions per place. [2023-08-25 05:25:09,216 INFO L140 encePairwiseOnDemand]: 663/671 looper letters, 253 selfloop transitions, 21 changer transitions 30/304 dead transitions. [2023-08-25 05:25:09,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 304 transitions, 1735 flow [2023-08-25 05:25:09,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 05:25:09,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 05:25:09,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2703 transitions. [2023-08-25 05:25:09,222 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3662105405771576 [2023-08-25 05:25:09,222 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2703 transitions. [2023-08-25 05:25:09,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2703 transitions. [2023-08-25 05:25:09,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:25:09,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2703 transitions. [2023-08-25 05:25:09,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 245.72727272727272) internal successors, (2703), 11 states have internal predecessors, (2703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:09,341 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 671.0) internal successors, (8052), 12 states have internal predecessors, (8052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:09,342 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 671.0) internal successors, (8052), 12 states have internal predecessors, (8052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:09,342 INFO L175 Difference]: Start difference. First operand has 78 places, 80 transitions, 321 flow. Second operand 11 states and 2703 transitions. [2023-08-25 05:25:09,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 304 transitions, 1735 flow [2023-08-25 05:25:09,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 304 transitions, 1715 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 05:25:09,373 INFO L231 Difference]: Finished difference. Result has 91 places, 89 transitions, 435 flow [2023-08-25 05:25:09,373 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=317, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=435, PETRI_PLACES=91, PETRI_TRANSITIONS=89} [2023-08-25 05:25:09,374 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -82 predicate places. [2023-08-25 05:25:09,374 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 89 transitions, 435 flow [2023-08-25 05:25:09,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 228.44444444444446) internal successors, (2056), 9 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:09,375 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:25:09,375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:25:09,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 05:25:09,375 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 05:25:09,375 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:25:09,375 INFO L85 PathProgramCache]: Analyzing trace with hash -698711144, now seen corresponding path program 6 times [2023-08-25 05:25:09,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:25:09,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344376009] [2023-08-25 05:25:09,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:25:09,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:25:09,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:25:09,989 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 05:25:09,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:25:09,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344376009] [2023-08-25 05:25:09,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344376009] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:25:09,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:25:09,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 05:25:09,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905189589] [2023-08-25 05:25:09,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:25:09,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 05:25:09,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:25:09,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 05:25:09,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-08-25 05:25:09,993 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 671 [2023-08-25 05:25:09,995 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 89 transitions, 435 flow. Second operand has 9 states, 9 states have (on average 229.44444444444446) internal successors, (2065), 9 states have internal predecessors, (2065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:09,995 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:25:09,995 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 671 [2023-08-25 05:25:09,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:25:12,158 INFO L124 PetriNetUnfolderBase]: 17217/26086 cut-off events. [2023-08-25 05:25:12,158 INFO L125 PetriNetUnfolderBase]: For 16745/16745 co-relation queries the response was YES. [2023-08-25 05:25:12,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71781 conditions, 26086 events. 17217/26086 cut-off events. For 16745/16745 co-relation queries the response was YES. Maximal size of possible extension queue 441. Compared 155726 event pairs, 7405 based on Foata normal form. 270/26356 useless extension candidates. Maximal degree in co-relation 71761. Up to 21233 conditions per place. [2023-08-25 05:25:12,274 INFO L140 encePairwiseOnDemand]: 661/671 looper letters, 181 selfloop transitions, 28 changer transitions 1/210 dead transitions. [2023-08-25 05:25:12,275 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 210 transitions, 1332 flow [2023-08-25 05:25:12,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 05:25:12,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 05:25:12,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1951 transitions. [2023-08-25 05:25:12,278 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3634500745156483 [2023-08-25 05:25:12,278 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1951 transitions. [2023-08-25 05:25:12,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1951 transitions. [2023-08-25 05:25:12,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:25:12,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1951 transitions. [2023-08-25 05:25:12,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 243.875) internal successors, (1951), 8 states have internal predecessors, (1951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:12,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 671.0) internal successors, (6039), 9 states have internal predecessors, (6039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:12,287 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 671.0) internal successors, (6039), 9 states have internal predecessors, (6039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:12,287 INFO L175 Difference]: Start difference. First operand has 91 places, 89 transitions, 435 flow. Second operand 8 states and 1951 transitions. [2023-08-25 05:25:12,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 210 transitions, 1332 flow [2023-08-25 05:25:12,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 210 transitions, 1297 flow, removed 3 selfloop flow, removed 5 redundant places. [2023-08-25 05:25:12,379 INFO L231 Difference]: Finished difference. Result has 97 places, 112 transitions, 655 flow [2023-08-25 05:25:12,380 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=655, PETRI_PLACES=97, PETRI_TRANSITIONS=112} [2023-08-25 05:25:12,380 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -76 predicate places. [2023-08-25 05:25:12,380 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 112 transitions, 655 flow [2023-08-25 05:25:12,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 229.44444444444446) internal successors, (2065), 9 states have internal predecessors, (2065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:12,381 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:25:12,381 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:25:12,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 05:25:12,381 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 05:25:12,381 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:25:12,381 INFO L85 PathProgramCache]: Analyzing trace with hash 929469658, now seen corresponding path program 7 times [2023-08-25 05:25:12,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:25:12,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576699110] [2023-08-25 05:25:12,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:25:12,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:25:12,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:25:12,931 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 05:25:12,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:25:12,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576699110] [2023-08-25 05:25:12,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576699110] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:25:12,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:25:12,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 05:25:12,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417684728] [2023-08-25 05:25:12,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:25:12,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 05:25:12,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:25:12,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 05:25:12,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-25 05:25:12,934 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 671 [2023-08-25 05:25:12,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 112 transitions, 655 flow. Second operand has 7 states, 7 states have (on average 231.0) internal successors, (1617), 7 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:12,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:25:12,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 671 [2023-08-25 05:25:12,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:25:15,413 INFO L124 PetriNetUnfolderBase]: 20534/30999 cut-off events. [2023-08-25 05:25:15,413 INFO L125 PetriNetUnfolderBase]: For 28410/28410 co-relation queries the response was YES. [2023-08-25 05:25:15,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91198 conditions, 30999 events. 20534/30999 cut-off events. For 28410/28410 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 190264 event pairs, 7059 based on Foata normal form. 250/31249 useless extension candidates. Maximal degree in co-relation 91174. Up to 25119 conditions per place. [2023-08-25 05:25:15,621 INFO L140 encePairwiseOnDemand]: 659/671 looper letters, 192 selfloop transitions, 23 changer transitions 4/219 dead transitions. [2023-08-25 05:25:15,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 219 transitions, 1511 flow [2023-08-25 05:25:15,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 05:25:15,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 05:25:15,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1722 transitions. [2023-08-25 05:25:15,625 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36661698956780925 [2023-08-25 05:25:15,625 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1722 transitions. [2023-08-25 05:25:15,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1722 transitions. [2023-08-25 05:25:15,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:25:15,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1722 transitions. [2023-08-25 05:25:15,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 246.0) internal successors, (1722), 7 states have internal predecessors, (1722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:15,632 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 671.0) internal successors, (5368), 8 states have internal predecessors, (5368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:15,633 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 671.0) internal successors, (5368), 8 states have internal predecessors, (5368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:15,633 INFO L175 Difference]: Start difference. First operand has 97 places, 112 transitions, 655 flow. Second operand 7 states and 1722 transitions. [2023-08-25 05:25:15,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 219 transitions, 1511 flow [2023-08-25 05:25:15,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 219 transitions, 1497 flow, removed 7 selfloop flow, removed 0 redundant places. [2023-08-25 05:25:15,877 INFO L231 Difference]: Finished difference. Result has 106 places, 126 transitions, 790 flow [2023-08-25 05:25:15,878 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=641, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=790, PETRI_PLACES=106, PETRI_TRANSITIONS=126} [2023-08-25 05:25:15,878 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -67 predicate places. [2023-08-25 05:25:15,878 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 126 transitions, 790 flow [2023-08-25 05:25:15,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 231.0) internal successors, (1617), 7 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:15,879 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:25:15,879 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:25:15,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 05:25:15,879 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 05:25:15,879 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:25:15,879 INFO L85 PathProgramCache]: Analyzing trace with hash 977194994, now seen corresponding path program 8 times [2023-08-25 05:25:15,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:25:15,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68268396] [2023-08-25 05:25:15,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:25:15,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:25:15,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:25:16,330 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 05:25:16,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:25:16,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68268396] [2023-08-25 05:25:16,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68268396] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:25:16,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:25:16,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 05:25:16,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516588187] [2023-08-25 05:25:16,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:25:16,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 05:25:16,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:25:16,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 05:25:16,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-08-25 05:25:16,334 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 671 [2023-08-25 05:25:16,335 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 126 transitions, 790 flow. Second operand has 9 states, 9 states have (on average 229.44444444444446) internal successors, (2065), 9 states have internal predecessors, (2065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:16,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:25:16,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 671 [2023-08-25 05:25:16,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:25:19,003 INFO L124 PetriNetUnfolderBase]: 23133/34830 cut-off events. [2023-08-25 05:25:19,003 INFO L125 PetriNetUnfolderBase]: For 42898/42898 co-relation queries the response was YES. [2023-08-25 05:25:19,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110581 conditions, 34830 events. 23133/34830 cut-off events. For 42898/42898 co-relation queries the response was YES. Maximal size of possible extension queue 630. Compared 217673 event pairs, 8393 based on Foata normal form. 250/35080 useless extension candidates. Maximal degree in co-relation 110553. Up to 28848 conditions per place. [2023-08-25 05:25:19,239 INFO L140 encePairwiseOnDemand]: 659/671 looper letters, 203 selfloop transitions, 26 changer transitions 12/241 dead transitions. [2023-08-25 05:25:19,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 241 transitions, 1759 flow [2023-08-25 05:25:19,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 05:25:19,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 05:25:19,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1959 transitions. [2023-08-25 05:25:19,243 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3649403874813711 [2023-08-25 05:25:19,243 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1959 transitions. [2023-08-25 05:25:19,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1959 transitions. [2023-08-25 05:25:19,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:25:19,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1959 transitions. [2023-08-25 05:25:19,246 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 244.875) internal successors, (1959), 8 states have internal predecessors, (1959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:19,250 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 671.0) internal successors, (6039), 9 states have internal predecessors, (6039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:19,251 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 671.0) internal successors, (6039), 9 states have internal predecessors, (6039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:19,251 INFO L175 Difference]: Start difference. First operand has 106 places, 126 transitions, 790 flow. Second operand 8 states and 1959 transitions. [2023-08-25 05:25:19,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 241 transitions, 1759 flow [2023-08-25 05:25:19,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 241 transitions, 1724 flow, removed 12 selfloop flow, removed 2 redundant places. [2023-08-25 05:25:19,558 INFO L231 Difference]: Finished difference. Result has 114 places, 136 transitions, 907 flow [2023-08-25 05:25:19,558 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=757, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=907, PETRI_PLACES=114, PETRI_TRANSITIONS=136} [2023-08-25 05:25:19,559 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -59 predicate places. [2023-08-25 05:25:19,559 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 136 transitions, 907 flow [2023-08-25 05:25:19,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 229.44444444444446) internal successors, (2065), 9 states have internal predecessors, (2065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:19,559 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:25:19,559 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:25:19,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 05:25:19,560 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 05:25:19,560 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:25:19,560 INFO L85 PathProgramCache]: Analyzing trace with hash 368753726, now seen corresponding path program 9 times [2023-08-25 05:25:19,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:25:19,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112348441] [2023-08-25 05:25:19,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:25:19,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:25:19,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:25:19,997 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 05:25:19,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:25:19,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112348441] [2023-08-25 05:25:19,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112348441] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:25:19,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:25:19,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 05:25:19,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56706708] [2023-08-25 05:25:19,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:25:19,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 05:25:19,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:25:19,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 05:25:19,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-25 05:25:20,000 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 671 [2023-08-25 05:25:20,001 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 136 transitions, 907 flow. Second operand has 7 states, 7 states have (on average 231.0) internal successors, (1617), 7 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:20,001 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:25:20,001 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 671 [2023-08-25 05:25:20,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:25:23,646 INFO L124 PetriNetUnfolderBase]: 26229/39468 cut-off events. [2023-08-25 05:25:23,646 INFO L125 PetriNetUnfolderBase]: For 64733/64733 co-relation queries the response was YES. [2023-08-25 05:25:23,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131153 conditions, 39468 events. 26229/39468 cut-off events. For 64733/64733 co-relation queries the response was YES. Maximal size of possible extension queue 732. Compared 252629 event pairs, 10629 based on Foata normal form. 270/39738 useless extension candidates. Maximal degree in co-relation 131121. Up to 33560 conditions per place. [2023-08-25 05:25:23,858 INFO L140 encePairwiseOnDemand]: 658/671 looper letters, 221 selfloop transitions, 29 changer transitions 6/256 dead transitions. [2023-08-25 05:25:23,859 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 256 transitions, 2005 flow [2023-08-25 05:25:23,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 05:25:23,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 05:25:23,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1726 transitions. [2023-08-25 05:25:23,862 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3674685969767937 [2023-08-25 05:25:23,862 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1726 transitions. [2023-08-25 05:25:23,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1726 transitions. [2023-08-25 05:25:23,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:25:23,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1726 transitions. [2023-08-25 05:25:23,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 246.57142857142858) internal successors, (1726), 7 states have internal predecessors, (1726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:23,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 671.0) internal successors, (5368), 8 states have internal predecessors, (5368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:23,868 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 671.0) internal successors, (5368), 8 states have internal predecessors, (5368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:23,868 INFO L175 Difference]: Start difference. First operand has 114 places, 136 transitions, 907 flow. Second operand 7 states and 1726 transitions. [2023-08-25 05:25:23,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 256 transitions, 2005 flow [2023-08-25 05:25:24,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 256 transitions, 1963 flow, removed 12 selfloop flow, removed 3 redundant places. [2023-08-25 05:25:24,200 INFO L231 Difference]: Finished difference. Result has 121 places, 157 transitions, 1135 flow [2023-08-25 05:25:24,200 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=865, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1135, PETRI_PLACES=121, PETRI_TRANSITIONS=157} [2023-08-25 05:25:24,200 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -52 predicate places. [2023-08-25 05:25:24,200 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 157 transitions, 1135 flow [2023-08-25 05:25:24,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 231.0) internal successors, (1617), 7 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:24,201 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:25:24,201 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:25:24,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 05:25:24,201 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 05:25:24,201 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:25:24,201 INFO L85 PathProgramCache]: Analyzing trace with hash 636298030, now seen corresponding path program 10 times [2023-08-25 05:25:24,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:25:24,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839759559] [2023-08-25 05:25:24,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:25:24,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:25:24,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:25:24,974 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 05:25:24,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:25:24,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839759559] [2023-08-25 05:25:24,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839759559] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:25:24,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:25:24,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 05:25:24,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587375473] [2023-08-25 05:25:24,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:25:24,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 05:25:24,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:25:24,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 05:25:24,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-08-25 05:25:24,977 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 671 [2023-08-25 05:25:24,978 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 157 transitions, 1135 flow. Second operand has 7 states, 7 states have (on average 231.0) internal successors, (1617), 7 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:24,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:25:24,978 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 671 [2023-08-25 05:25:24,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:25:30,677 INFO L124 PetriNetUnfolderBase]: 39724/60359 cut-off events. [2023-08-25 05:25:30,677 INFO L125 PetriNetUnfolderBase]: For 128587/128587 co-relation queries the response was YES. [2023-08-25 05:25:31,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 209988 conditions, 60359 events. 39724/60359 cut-off events. For 128587/128587 co-relation queries the response was YES. Maximal size of possible extension queue 1076. Compared 416468 event pairs, 12402 based on Foata normal form. 270/60629 useless extension candidates. Maximal degree in co-relation 209951. Up to 24272 conditions per place. [2023-08-25 05:25:31,147 INFO L140 encePairwiseOnDemand]: 659/671 looper letters, 306 selfloop transitions, 64 changer transitions 4/374 dead transitions. [2023-08-25 05:25:31,147 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 374 transitions, 3122 flow [2023-08-25 05:25:31,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 05:25:31,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 05:25:31,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1767 transitions. [2023-08-25 05:25:31,150 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3761975729188844 [2023-08-25 05:25:31,150 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1767 transitions. [2023-08-25 05:25:31,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1767 transitions. [2023-08-25 05:25:31,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:25:31,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1767 transitions. [2023-08-25 05:25:31,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 252.42857142857142) internal successors, (1767), 7 states have internal predecessors, (1767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:31,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 671.0) internal successors, (5368), 8 states have internal predecessors, (5368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:31,156 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 671.0) internal successors, (5368), 8 states have internal predecessors, (5368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:31,156 INFO L175 Difference]: Start difference. First operand has 121 places, 157 transitions, 1135 flow. Second operand 7 states and 1767 transitions. [2023-08-25 05:25:31,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 374 transitions, 3122 flow [2023-08-25 05:25:32,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 374 transitions, 2996 flow, removed 50 selfloop flow, removed 4 redundant places. [2023-08-25 05:25:32,183 INFO L231 Difference]: Finished difference. Result has 128 places, 174 transitions, 1478 flow [2023-08-25 05:25:32,184 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=1006, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1478, PETRI_PLACES=128, PETRI_TRANSITIONS=174} [2023-08-25 05:25:32,184 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -45 predicate places. [2023-08-25 05:25:32,184 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 174 transitions, 1478 flow [2023-08-25 05:25:32,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 231.0) internal successors, (1617), 7 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:32,184 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:25:32,185 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:25:32,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 05:25:32,185 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 05:25:32,185 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:25:32,185 INFO L85 PathProgramCache]: Analyzing trace with hash -585138816, now seen corresponding path program 11 times [2023-08-25 05:25:32,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:25:32,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632652437] [2023-08-25 05:25:32,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:25:32,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:25:32,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:25:32,594 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 05:25:32,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:25:32,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632652437] [2023-08-25 05:25:32,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632652437] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:25:32,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:25:32,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-25 05:25:32,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438661695] [2023-08-25 05:25:32,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:25:32,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-25 05:25:32,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:25:32,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-25 05:25:32,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-08-25 05:25:32,596 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 671 [2023-08-25 05:25:32,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 174 transitions, 1478 flow. Second operand has 8 states, 8 states have (on average 230.125) internal successors, (1841), 8 states have internal predecessors, (1841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:32,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:25:32,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 671 [2023-08-25 05:25:32,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:25:39,611 INFO L124 PetriNetUnfolderBase]: 44137/66944 cut-off events. [2023-08-25 05:25:39,612 INFO L125 PetriNetUnfolderBase]: For 199405/199405 co-relation queries the response was YES. [2023-08-25 05:25:40,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 247334 conditions, 66944 events. 44137/66944 cut-off events. For 199405/199405 co-relation queries the response was YES. Maximal size of possible extension queue 1207. Compared 464111 event pairs, 18447 based on Foata normal form. 266/67210 useless extension candidates. Maximal degree in co-relation 247293. Up to 51457 conditions per place. [2023-08-25 05:25:40,186 INFO L140 encePairwiseOnDemand]: 659/671 looper letters, 281 selfloop transitions, 41 changer transitions 6/328 dead transitions. [2023-08-25 05:25:40,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 328 transitions, 3091 flow [2023-08-25 05:25:40,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 05:25:40,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 05:25:40,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1965 transitions. [2023-08-25 05:25:40,189 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3660581222056632 [2023-08-25 05:25:40,189 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1965 transitions. [2023-08-25 05:25:40,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1965 transitions. [2023-08-25 05:25:40,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:25:40,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1965 transitions. [2023-08-25 05:25:40,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 245.625) internal successors, (1965), 8 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:40,195 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 671.0) internal successors, (6039), 9 states have internal predecessors, (6039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:40,196 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 671.0) internal successors, (6039), 9 states have internal predecessors, (6039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:40,196 INFO L175 Difference]: Start difference. First operand has 128 places, 174 transitions, 1478 flow. Second operand 8 states and 1965 transitions. [2023-08-25 05:25:40,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 328 transitions, 3091 flow [2023-08-25 05:25:41,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 328 transitions, 3056 flow, removed 15 selfloop flow, removed 1 redundant places. [2023-08-25 05:25:41,699 INFO L231 Difference]: Finished difference. Result has 137 places, 202 transitions, 1883 flow [2023-08-25 05:25:41,699 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=1461, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1883, PETRI_PLACES=137, PETRI_TRANSITIONS=202} [2023-08-25 05:25:41,700 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -36 predicate places. [2023-08-25 05:25:41,700 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 202 transitions, 1883 flow [2023-08-25 05:25:41,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 230.125) internal successors, (1841), 8 states have internal predecessors, (1841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:41,700 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:25:41,700 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:25:41,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 05:25:41,700 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 05:25:41,701 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:25:41,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1620884866, now seen corresponding path program 12 times [2023-08-25 05:25:41,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:25:41,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331248940] [2023-08-25 05:25:41,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:25:41,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:25:41,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:25:42,131 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 05:25:42,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:25:42,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331248940] [2023-08-25 05:25:42,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331248940] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:25:42,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:25:42,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 05:25:42,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637325618] [2023-08-25 05:25:42,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:25:42,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 05:25:42,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:25:42,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 05:25:42,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-25 05:25:42,133 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 671 [2023-08-25 05:25:42,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 202 transitions, 1883 flow. Second operand has 6 states, 6 states have (on average 232.16666666666666) internal successors, (1393), 6 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:42,133 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:25:42,133 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 671 [2023-08-25 05:25:42,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:25:49,847 INFO L124 PetriNetUnfolderBase]: 47840/72573 cut-off events. [2023-08-25 05:25:49,848 INFO L125 PetriNetUnfolderBase]: For 243103/243103 co-relation queries the response was YES. [2023-08-25 05:25:50,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276646 conditions, 72573 events. 47840/72573 cut-off events. For 243103/243103 co-relation queries the response was YES. Maximal size of possible extension queue 1319. Compared 511446 event pairs, 22833 based on Foata normal form. 346/72919 useless extension candidates. Maximal degree in co-relation 276602. Up to 57645 conditions per place. [2023-08-25 05:25:50,462 INFO L140 encePairwiseOnDemand]: 660/671 looper letters, 291 selfloop transitions, 35 changer transitions 5/331 dead transitions. [2023-08-25 05:25:50,462 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 331 transitions, 3399 flow [2023-08-25 05:25:50,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 05:25:50,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 05:25:50,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1493 transitions. [2023-08-25 05:25:50,465 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3708395429706905 [2023-08-25 05:25:50,465 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1493 transitions. [2023-08-25 05:25:50,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1493 transitions. [2023-08-25 05:25:50,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:25:50,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1493 transitions. [2023-08-25 05:25:50,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 248.83333333333334) internal successors, (1493), 6 states have internal predecessors, (1493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:50,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 671.0) internal successors, (4697), 7 states have internal predecessors, (4697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:50,469 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 671.0) internal successors, (4697), 7 states have internal predecessors, (4697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:50,469 INFO L175 Difference]: Start difference. First operand has 137 places, 202 transitions, 1883 flow. Second operand 6 states and 1493 transitions. [2023-08-25 05:25:50,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 331 transitions, 3399 flow [2023-08-25 05:25:51,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 331 transitions, 3353 flow, removed 17 selfloop flow, removed 2 redundant places. [2023-08-25 05:25:51,719 INFO L231 Difference]: Finished difference. Result has 143 places, 220 transitions, 2151 flow [2023-08-25 05:25:51,719 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=1837, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2151, PETRI_PLACES=143, PETRI_TRANSITIONS=220} [2023-08-25 05:25:51,719 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -30 predicate places. [2023-08-25 05:25:51,719 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 220 transitions, 2151 flow [2023-08-25 05:25:51,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 232.16666666666666) internal successors, (1393), 6 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:51,720 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:25:51,720 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:25:51,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 05:25:51,720 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 05:25:51,720 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:25:51,720 INFO L85 PathProgramCache]: Analyzing trace with hash -908292636, now seen corresponding path program 13 times [2023-08-25 05:25:51,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:25:51,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27329506] [2023-08-25 05:25:51,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:25:51,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:25:51,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:25:52,156 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 05:25:52,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:25:52,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27329506] [2023-08-25 05:25:52,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27329506] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:25:52,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:25:52,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 05:25:52,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625752456] [2023-08-25 05:25:52,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:25:52,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 05:25:52,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:25:52,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 05:25:52,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-25 05:25:52,158 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 671 [2023-08-25 05:25:52,158 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 220 transitions, 2151 flow. Second operand has 7 states, 7 states have (on average 231.0) internal successors, (1617), 7 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:52,158 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:25:52,158 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 671 [2023-08-25 05:25:52,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:26:01,349 INFO L124 PetriNetUnfolderBase]: 54504/82701 cut-off events. [2023-08-25 05:26:01,350 INFO L125 PetriNetUnfolderBase]: For 306348/306348 co-relation queries the response was YES. [2023-08-25 05:26:01,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 321774 conditions, 82701 events. 54504/82701 cut-off events. For 306348/306348 co-relation queries the response was YES. Maximal size of possible extension queue 1529. Compared 596237 event pairs, 26051 based on Foata normal form. 238/82939 useless extension candidates. Maximal degree in co-relation 321726. Up to 66628 conditions per place. [2023-08-25 05:26:02,115 INFO L140 encePairwiseOnDemand]: 661/671 looper letters, 318 selfloop transitions, 40 changer transitions 5/363 dead transitions. [2023-08-25 05:26:02,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 363 transitions, 3816 flow [2023-08-25 05:26:02,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 05:26:02,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 05:26:02,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1734 transitions. [2023-08-25 05:26:02,119 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3691718117947626 [2023-08-25 05:26:02,119 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1734 transitions. [2023-08-25 05:26:02,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1734 transitions. [2023-08-25 05:26:02,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:26:02,120 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1734 transitions. [2023-08-25 05:26:02,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 247.71428571428572) internal successors, (1734), 7 states have internal predecessors, (1734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:26:02,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 671.0) internal successors, (5368), 8 states have internal predecessors, (5368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:26:02,127 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 671.0) internal successors, (5368), 8 states have internal predecessors, (5368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:26:02,127 INFO L175 Difference]: Start difference. First operand has 143 places, 220 transitions, 2151 flow. Second operand 7 states and 1734 transitions. [2023-08-25 05:26:02,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 363 transitions, 3816 flow [2023-08-25 05:26:03,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 363 transitions, 3780 flow, removed 18 selfloop flow, removed 0 redundant places. [2023-08-25 05:26:03,790 INFO L231 Difference]: Finished difference. Result has 152 places, 229 transitions, 2365 flow [2023-08-25 05:26:03,790 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=2115, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2365, PETRI_PLACES=152, PETRI_TRANSITIONS=229} [2023-08-25 05:26:03,791 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -21 predicate places. [2023-08-25 05:26:03,791 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 229 transitions, 2365 flow [2023-08-25 05:26:03,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 231.0) internal successors, (1617), 7 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:26:03,791 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:26:03,791 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:26:03,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-25 05:26:03,791 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 05:26:03,791 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:26:03,792 INFO L85 PathProgramCache]: Analyzing trace with hash -2138070636, now seen corresponding path program 14 times [2023-08-25 05:26:03,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:26:03,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106210] [2023-08-25 05:26:03,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:26:03,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:26:03,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:26:04,233 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 05:26:04,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:26:04,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106210] [2023-08-25 05:26:04,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106210] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:26:04,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:26:04,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 05:26:04,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067758599] [2023-08-25 05:26:04,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:26:04,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 05:26:04,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:26:04,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 05:26:04,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-08-25 05:26:04,235 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 671 [2023-08-25 05:26:04,236 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 229 transitions, 2365 flow. Second operand has 9 states, 9 states have (on average 229.44444444444446) internal successors, (2065), 9 states have internal predecessors, (2065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:26:04,236 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:26:04,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 671 [2023-08-25 05:26:04,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:26:14,377 INFO L124 PetriNetUnfolderBase]: 57106/86715 cut-off events. [2023-08-25 05:26:14,378 INFO L125 PetriNetUnfolderBase]: For 346713/346713 co-relation queries the response was YES. [2023-08-25 05:26:14,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 342439 conditions, 86715 events. 57106/86715 cut-off events. For 346713/346713 co-relation queries the response was YES. Maximal size of possible extension queue 1625. Compared 630231 event pairs, 32207 based on Foata normal form. 72/86787 useless extension candidates. Maximal degree in co-relation 342387. Up to 79892 conditions per place. [2023-08-25 05:26:15,173 INFO L140 encePairwiseOnDemand]: 659/671 looper letters, 325 selfloop transitions, 44 changer transitions 19/388 dead transitions. [2023-08-25 05:26:15,174 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 388 transitions, 4053 flow [2023-08-25 05:26:15,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 05:26:15,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 05:26:15,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2443 transitions. [2023-08-25 05:26:15,177 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36408345752608046 [2023-08-25 05:26:15,177 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2443 transitions. [2023-08-25 05:26:15,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2443 transitions. [2023-08-25 05:26:15,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:26:15,178 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2443 transitions. [2023-08-25 05:26:15,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 244.3) internal successors, (2443), 10 states have internal predecessors, (2443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:26:15,183 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 671.0) internal successors, (7381), 11 states have internal predecessors, (7381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:26:15,183 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 671.0) internal successors, (7381), 11 states have internal predecessors, (7381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:26:15,184 INFO L175 Difference]: Start difference. First operand has 152 places, 229 transitions, 2365 flow. Second operand 10 states and 2443 transitions. [2023-08-25 05:26:15,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 388 transitions, 4053 flow [2023-08-25 05:26:17,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 388 transitions, 3996 flow, removed 12 selfloop flow, removed 2 redundant places. [2023-08-25 05:26:17,189 INFO L231 Difference]: Finished difference. Result has 164 places, 252 transitions, 2707 flow [2023-08-25 05:26:17,189 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=2308, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2707, PETRI_PLACES=164, PETRI_TRANSITIONS=252} [2023-08-25 05:26:17,189 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -9 predicate places. [2023-08-25 05:26:17,189 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 252 transitions, 2707 flow [2023-08-25 05:26:17,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 229.44444444444446) internal successors, (2065), 9 states have internal predecessors, (2065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:26:17,190 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:26:17,190 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:26:17,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-25 05:26:17,190 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 05:26:17,190 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:26:17,190 INFO L85 PathProgramCache]: Analyzing trace with hash 707711420, now seen corresponding path program 15 times [2023-08-25 05:26:17,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:26:17,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721804983] [2023-08-25 05:26:17,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:26:17,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:26:17,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:26:17,580 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 05:26:17,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:26:17,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721804983] [2023-08-25 05:26:17,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721804983] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:26:17,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:26:17,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 05:26:17,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704843607] [2023-08-25 05:26:17,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:26:17,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 05:26:17,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:26:17,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 05:26:17,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-08-25 05:26:17,582 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 671 [2023-08-25 05:26:17,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 252 transitions, 2707 flow. Second operand has 9 states, 9 states have (on average 229.44444444444446) internal successors, (2065), 9 states have internal predecessors, (2065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:26:17,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:26:17,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 671 [2023-08-25 05:26:17,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:26:29,294 INFO L124 PetriNetUnfolderBase]: 62687/95000 cut-off events. [2023-08-25 05:26:29,294 INFO L125 PetriNetUnfolderBase]: For 459055/459055 co-relation queries the response was YES. [2023-08-25 05:26:30,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 388477 conditions, 95000 events. 62687/95000 cut-off events. For 459055/459055 co-relation queries the response was YES. Maximal size of possible extension queue 1739. Compared 697449 event pairs, 29655 based on Foata normal form. 56/95056 useless extension candidates. Maximal degree in co-relation 388420. Up to 78098 conditions per place. [2023-08-25 05:26:30,504 INFO L140 encePairwiseOnDemand]: 657/671 looper letters, 479 selfloop transitions, 80 changer transitions 30/589 dead transitions. [2023-08-25 05:26:30,504 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 589 transitions, 6129 flow [2023-08-25 05:26:30,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 05:26:30,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 05:26:30,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3004 transitions. [2023-08-25 05:26:30,507 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3730750124192747 [2023-08-25 05:26:30,507 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 3004 transitions. [2023-08-25 05:26:30,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 3004 transitions. [2023-08-25 05:26:30,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:26:30,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 3004 transitions. [2023-08-25 05:26:30,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 250.33333333333334) internal successors, (3004), 12 states have internal predecessors, (3004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:26:30,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 671.0) internal successors, (8723), 13 states have internal predecessors, (8723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:26:30,514 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 671.0) internal successors, (8723), 13 states have internal predecessors, (8723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:26:30,514 INFO L175 Difference]: Start difference. First operand has 164 places, 252 transitions, 2707 flow. Second operand 12 states and 3004 transitions. [2023-08-25 05:26:30,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 589 transitions, 6129 flow [2023-08-25 05:26:32,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 589 transitions, 6045 flow, removed 33 selfloop flow, removed 3 redundant places. [2023-08-25 05:26:32,686 INFO L231 Difference]: Finished difference. Result has 181 places, 291 transitions, 3409 flow [2023-08-25 05:26:32,686 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=2627, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3409, PETRI_PLACES=181, PETRI_TRANSITIONS=291} [2023-08-25 05:26:32,686 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, 8 predicate places. [2023-08-25 05:26:32,686 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 291 transitions, 3409 flow [2023-08-25 05:26:32,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 229.44444444444446) internal successors, (2065), 9 states have internal predecessors, (2065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:26:32,687 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:26:32,687 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:26:32,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-25 05:26:32,687 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 05:26:32,687 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:26:32,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1922582888, now seen corresponding path program 16 times [2023-08-25 05:26:32,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:26:32,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948909283] [2023-08-25 05:26:32,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:26:32,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:26:32,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:26:33,122 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 05:26:33,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:26:33,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948909283] [2023-08-25 05:26:33,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948909283] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:26:33,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:26:33,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 05:26:33,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309237053] [2023-08-25 05:26:33,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:26:33,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 05:26:33,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:26:33,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 05:26:33,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-08-25 05:26:33,124 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 671 [2023-08-25 05:26:33,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 291 transitions, 3409 flow. Second operand has 7 states, 7 states have (on average 231.0) internal successors, (1617), 7 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:26:33,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:26:33,125 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 671 [2023-08-25 05:26:33,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:26:47,083 INFO L124 PetriNetUnfolderBase]: 64668/98459 cut-off events. [2023-08-25 05:26:47,083 INFO L125 PetriNetUnfolderBase]: For 601449/601449 co-relation queries the response was YES. [2023-08-25 05:26:48,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 429261 conditions, 98459 events. 64668/98459 cut-off events. For 601449/601449 co-relation queries the response was YES. Maximal size of possible extension queue 1782. Compared 731101 event pairs, 32101 based on Foata normal form. 72/98531 useless extension candidates. Maximal degree in co-relation 429194. Up to 78602 conditions per place. [2023-08-25 05:26:48,379 INFO L140 encePairwiseOnDemand]: 660/671 looper letters, 359 selfloop transitions, 57 changer transitions 26/442 dead transitions. [2023-08-25 05:26:48,379 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 442 transitions, 5451 flow [2023-08-25 05:26:48,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 05:26:48,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 05:26:48,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1742 transitions. [2023-08-25 05:26:48,381 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37087502661273153 [2023-08-25 05:26:48,381 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1742 transitions. [2023-08-25 05:26:48,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1742 transitions. [2023-08-25 05:26:48,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:26:48,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1742 transitions. [2023-08-25 05:26:48,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 248.85714285714286) internal successors, (1742), 7 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:26:48,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 671.0) internal successors, (5368), 8 states have internal predecessors, (5368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:26:48,386 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 671.0) internal successors, (5368), 8 states have internal predecessors, (5368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:26:48,386 INFO L175 Difference]: Start difference. First operand has 181 places, 291 transitions, 3409 flow. Second operand 7 states and 1742 transitions. [2023-08-25 05:26:48,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 442 transitions, 5451 flow [2023-08-25 05:26:51,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 442 transitions, 5321 flow, removed 63 selfloop flow, removed 2 redundant places. [2023-08-25 05:26:51,793 INFO L231 Difference]: Finished difference. Result has 187 places, 298 transitions, 3621 flow [2023-08-25 05:26:51,794 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=3305, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3621, PETRI_PLACES=187, PETRI_TRANSITIONS=298} [2023-08-25 05:26:51,794 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, 14 predicate places. [2023-08-25 05:26:51,794 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 298 transitions, 3621 flow [2023-08-25 05:26:51,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 231.0) internal successors, (1617), 7 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:26:51,794 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:26:51,794 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:26:51,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-25 05:26:51,795 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 05:26:51,795 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:26:51,795 INFO L85 PathProgramCache]: Analyzing trace with hash 548435576, now seen corresponding path program 17 times [2023-08-25 05:26:51,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:26:51,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007796837] [2023-08-25 05:26:51,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:26:51,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:26:51,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:26:52,193 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 05:26:52,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:26:52,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007796837] [2023-08-25 05:26:52,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007796837] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:26:52,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:26:52,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-25 05:26:52,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742520357] [2023-08-25 05:26:52,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:26:52,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-25 05:26:52,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:26:52,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-25 05:26:52,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-08-25 05:26:52,196 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 671 [2023-08-25 05:26:52,197 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 298 transitions, 3621 flow. Second operand has 8 states, 8 states have (on average 230.125) internal successors, (1841), 8 states have internal predecessors, (1841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:26:52,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:26:52,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 671 [2023-08-25 05:26:52,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:27:06,200 INFO L124 PetriNetUnfolderBase]: 66275/100908 cut-off events. [2023-08-25 05:27:06,200 INFO L125 PetriNetUnfolderBase]: For 653455/653455 co-relation queries the response was YES. [2023-08-25 05:27:07,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 447613 conditions, 100908 events. 66275/100908 cut-off events. For 653455/653455 co-relation queries the response was YES. Maximal size of possible extension queue 1828. Compared 755691 event pairs, 33454 based on Foata normal form. 268/101176 useless extension candidates. Maximal degree in co-relation 447543. Up to 91481 conditions per place. [2023-08-25 05:27:07,749 INFO L140 encePairwiseOnDemand]: 660/671 looper letters, 395 selfloop transitions, 46 changer transitions 27/468 dead transitions. [2023-08-25 05:27:07,749 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 468 transitions, 6088 flow [2023-08-25 05:27:07,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 05:27:07,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 05:27:07,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1965 transitions. [2023-08-25 05:27:07,751 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3660581222056632 [2023-08-25 05:27:07,751 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1965 transitions. [2023-08-25 05:27:07,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1965 transitions. [2023-08-25 05:27:07,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:27:07,752 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1965 transitions. [2023-08-25 05:27:07,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 245.625) internal successors, (1965), 8 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:27:07,756 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 671.0) internal successors, (6039), 9 states have internal predecessors, (6039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:27:07,756 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 671.0) internal successors, (6039), 9 states have internal predecessors, (6039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:27:07,756 INFO L175 Difference]: Start difference. First operand has 187 places, 298 transitions, 3621 flow. Second operand 8 states and 1965 transitions. [2023-08-25 05:27:07,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 468 transitions, 6088 flow [2023-08-25 05:27:11,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 468 transitions, 6027 flow, removed 21 selfloop flow, removed 2 redundant places. [2023-08-25 05:27:11,023 INFO L231 Difference]: Finished difference. Result has 198 places, 321 transitions, 4120 flow [2023-08-25 05:27:11,023 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=3567, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=4120, PETRI_PLACES=198, PETRI_TRANSITIONS=321} [2023-08-25 05:27:11,024 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, 25 predicate places. [2023-08-25 05:27:11,024 INFO L495 AbstractCegarLoop]: Abstraction has has 198 places, 321 transitions, 4120 flow [2023-08-25 05:27:11,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 230.125) internal successors, (1841), 8 states have internal predecessors, (1841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:27:11,024 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:27:11,024 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:27:11,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-25 05:27:11,024 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 05:27:11,024 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:27:11,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1818311804, now seen corresponding path program 18 times [2023-08-25 05:27:11,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:27:11,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902575254] [2023-08-25 05:27:11,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:27:11,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:27:11,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:27:11,181 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 05:27:11,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:27:11,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902575254] [2023-08-25 05:27:11,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902575254] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:27:11,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:27:11,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-25 05:27:11,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459661451] [2023-08-25 05:27:11,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:27:11,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 05:27:11,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:27:11,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 05:27:11,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-08-25 05:27:11,183 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 671 [2023-08-25 05:27:11,183 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 321 transitions, 4120 flow. Second operand has 9 states, 9 states have (on average 228.44444444444446) internal successors, (2056), 9 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:27:11,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:27:11,184 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 671 [2023-08-25 05:27:11,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand