/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-ticket-4.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 05:42:32,496 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 05:42:32,579 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 05:42:32,583 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 05:42:32,584 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 05:42:32,614 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 05:42:32,615 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 05:42:32,615 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 05:42:32,616 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 05:42:32,620 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 05:42:32,620 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 05:42:32,620 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 05:42:32,620 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 05:42:32,622 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 05:42:32,622 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 05:42:32,622 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 05:42:32,622 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 05:42:32,622 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 05:42:32,623 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 05:42:32,623 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 05:42:32,623 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 05:42:32,623 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 05:42:32,624 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 05:42:32,624 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 05:42:32,624 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 05:42:32,625 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 05:42:32,625 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 05:42:32,625 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 05:42:32,625 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 05:42:32,625 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 05:42:32,626 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 05:42:32,627 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 05:42:32,627 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 05:42:32,627 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 05:42:32,627 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 05:42:32,627 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 05:42:32,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 05:42:32,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 05:42:32,976 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 05:42:32,977 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 05:42:32,978 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 05:42:32,979 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-4.wvr.c [2023-08-25 05:42:34,226 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 05:42:34,458 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 05:42:34,458 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-4.wvr.c [2023-08-25 05:42:34,466 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca47aa426/687323613915400eaf24f8dd00c1ab04/FLAG5b9e353f2 [2023-08-25 05:42:34,481 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca47aa426/687323613915400eaf24f8dd00c1ab04 [2023-08-25 05:42:34,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 05:42:34,487 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 05:42:34,489 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 05:42:34,489 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 05:42:34,492 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 05:42:34,493 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:42:34" (1/1) ... [2023-08-25 05:42:34,494 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b912a92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:42:34, skipping insertion in model container [2023-08-25 05:42:34,494 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:42:34" (1/1) ... [2023-08-25 05:42:34,529 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 05:42:34,715 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 05:42:34,727 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 05:42:34,773 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 05:42:34,779 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 05:42:34,780 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 05:42:34,785 INFO L206 MainTranslator]: Completed translation [2023-08-25 05:42:34,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:42:34 WrapperNode [2023-08-25 05:42:34,786 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 05:42:34,787 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 05:42:34,787 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 05:42:34,787 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 05:42:34,792 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:42:34" (1/1) ... [2023-08-25 05:42:34,801 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:42:34" (1/1) ... [2023-08-25 05:42:34,829 INFO L138 Inliner]: procedures = 23, calls = 71, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 418 [2023-08-25 05:42:34,830 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 05:42:34,831 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 05:42:34,831 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 05:42:34,831 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 05:42:34,838 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:42:34" (1/1) ... [2023-08-25 05:42:34,838 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:42:34" (1/1) ... [2023-08-25 05:42:34,842 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:42:34" (1/1) ... [2023-08-25 05:42:34,842 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:42:34" (1/1) ... [2023-08-25 05:42:34,856 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:42:34" (1/1) ... [2023-08-25 05:42:34,858 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:42:34" (1/1) ... [2023-08-25 05:42:34,860 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:42:34" (1/1) ... [2023-08-25 05:42:34,861 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:42:34" (1/1) ... [2023-08-25 05:42:34,869 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 05:42:34,870 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 05:42:34,870 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 05:42:34,870 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 05:42:34,871 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:42:34" (1/1) ... [2023-08-25 05:42:34,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 05:42:34,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:42:34,924 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 05:42:34,944 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 05:42:34,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 05:42:34,959 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 05:42:34,959 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 05:42:34,960 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 05:42:34,960 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 05:42:34,960 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-25 05:42:34,960 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-25 05:42:34,960 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-08-25 05:42:34,960 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-08-25 05:42:34,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 05:42:34,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 05:42:34,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 05:42:34,961 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 05:42:34,961 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 05:42:34,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 05:42:34,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 05:42:34,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 05:42:34,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 05:42:34,964 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 05:42:35,073 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 05:42:35,075 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 05:42:35,611 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 05:42:35,859 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 05:42:35,859 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 05:42:35,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:42:35 BoogieIcfgContainer [2023-08-25 05:42:35,861 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 05:42:35,863 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 05:42:35,863 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 05:42:35,865 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 05:42:35,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 05:42:34" (1/3) ... [2023-08-25 05:42:35,866 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28df6210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:42:35, skipping insertion in model container [2023-08-25 05:42:35,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:42:34" (2/3) ... [2023-08-25 05:42:35,866 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28df6210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:42:35, skipping insertion in model container [2023-08-25 05:42:35,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:42:35" (3/3) ... [2023-08-25 05:42:35,867 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-4.wvr.c [2023-08-25 05:42:35,882 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 05:42:35,882 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 63 error locations. [2023-08-25 05:42:35,882 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 05:42:35,961 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-08-25 05:42:35,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 295 places, 287 transitions, 606 flow [2023-08-25 05:42:36,099 INFO L124 PetriNetUnfolderBase]: 5/283 cut-off events. [2023-08-25 05:42:36,099 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-25 05:42:36,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 283 events. 5/283 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 290 event pairs, 0 based on Foata normal form. 0/215 useless extension candidates. Maximal degree in co-relation 209. Up to 2 conditions per place. [2023-08-25 05:42:36,104 INFO L82 GeneralOperation]: Start removeDead. Operand has 295 places, 287 transitions, 606 flow [2023-08-25 05:42:36,115 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 278 places, 270 transitions, 564 flow [2023-08-25 05:42:36,119 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 05:42:36,130 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 278 places, 270 transitions, 564 flow [2023-08-25 05:42:36,133 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 278 places, 270 transitions, 564 flow [2023-08-25 05:42:36,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 278 places, 270 transitions, 564 flow [2023-08-25 05:42:36,182 INFO L124 PetriNetUnfolderBase]: 5/270 cut-off events. [2023-08-25 05:42:36,182 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-25 05:42:36,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 287 conditions, 270 events. 5/270 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 291 event pairs, 0 based on Foata normal form. 0/203 useless extension candidates. Maximal degree in co-relation 209. Up to 2 conditions per place. [2023-08-25 05:42:36,189 INFO L119 LiptonReduction]: Number of co-enabled transitions 7752 [2023-08-25 05:42:43,392 INFO L134 LiptonReduction]: Checked pairs total: 50408 [2023-08-25 05:42:43,393 INFO L136 LiptonReduction]: Total number of compositions: 263 [2023-08-25 05:42:43,405 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 05:42:43,410 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;@71f696c0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 05:42:43,410 INFO L358 AbstractCegarLoop]: Starting to check reachability of 110 error locations. [2023-08-25 05:42:43,411 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 05:42:43,411 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 05:42:43,411 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 05:42:43,412 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:42:43,412 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 05:42:43,412 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 05:42:43,416 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:42:43,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1383, now seen corresponding path program 1 times [2023-08-25 05:42:43,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:42:43,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106161690] [2023-08-25 05:42:43,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:42:43,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:42:43,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:42:43,509 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 05:42:43,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:42:43,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106161690] [2023-08-25 05:42:43,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106161690] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:42:43,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:42:43,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 05:42:43,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743097343] [2023-08-25 05:42:43,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:42:43,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 05:42:43,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:42:43,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 05:42:43,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 05:42:43,548 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 550 [2023-08-25 05:42:43,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 96 transitions, 216 flow. Second operand has 2 states, 2 states have (on average 216.5) internal successors, (433), 2 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:43,553 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:42:43,553 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 550 [2023-08-25 05:42:43,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:42:44,319 INFO L124 PetriNetUnfolderBase]: 5627/7812 cut-off events. [2023-08-25 05:42:44,319 INFO L125 PetriNetUnfolderBase]: For 454/454 co-relation queries the response was YES. [2023-08-25 05:42:44,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16160 conditions, 7812 events. 5627/7812 cut-off events. For 454/454 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 34382 event pairs, 5627 based on Foata normal form. 0/7812 useless extension candidates. Maximal degree in co-relation 13992. Up to 7813 conditions per place. [2023-08-25 05:42:44,365 INFO L140 encePairwiseOnDemand]: 488/550 looper letters, 34 selfloop transitions, 0 changer transitions 0/34 dead transitions. [2023-08-25 05:42:44,366 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 34 transitions, 160 flow [2023-08-25 05:42:44,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 05:42:44,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 05:42:44,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 528 transitions. [2023-08-25 05:42:44,382 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48 [2023-08-25 05:42:44,383 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 528 transitions. [2023-08-25 05:42:44,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 528 transitions. [2023-08-25 05:42:44,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:42:44,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 528 transitions. [2023-08-25 05:42:44,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 264.0) internal successors, (528), 2 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:44,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 550.0) internal successors, (1650), 3 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:44,398 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 550.0) internal successors, (1650), 3 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:44,400 INFO L175 Difference]: Start difference. First operand has 109 places, 96 transitions, 216 flow. Second operand 2 states and 528 transitions. [2023-08-25 05:42:44,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 34 transitions, 160 flow [2023-08-25 05:42:44,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 34 transitions, 144 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-08-25 05:42:44,410 INFO L231 Difference]: Finished difference. Result has 40 places, 34 transitions, 76 flow [2023-08-25 05:42:44,411 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=76, PETRI_PLACES=40, PETRI_TRANSITIONS=34} [2023-08-25 05:42:44,414 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -69 predicate places. [2023-08-25 05:42:44,414 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 34 transitions, 76 flow [2023-08-25 05:42:44,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 216.5) internal successors, (433), 2 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:44,415 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:42:44,416 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:42:44,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 05:42:44,416 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 05:42:44,417 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:42:44,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1607284180, now seen corresponding path program 1 times [2023-08-25 05:42:44,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:42:44,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888251627] [2023-08-25 05:42:44,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:42:44,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:42:44,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:42:44,998 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 05:42:44,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:42:44,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888251627] [2023-08-25 05:42:44,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888251627] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:42:44,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:42:45,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 05:42:45,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649132628] [2023-08-25 05:42:45,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:42:45,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 05:42:45,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:42:45,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 05:42:45,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 05:42:45,003 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 05:42:45,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 34 transitions, 76 flow. Second operand has 5 states, 5 states have (on average 213.8) internal successors, (1069), 5 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:45,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:42:45,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 05:42:45,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:42:45,791 INFO L124 PetriNetUnfolderBase]: 6106/8495 cut-off events. [2023-08-25 05:42:45,791 INFO L125 PetriNetUnfolderBase]: For 98/98 co-relation queries the response was YES. [2023-08-25 05:42:45,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17203 conditions, 8495 events. 6106/8495 cut-off events. For 98/98 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 39529 event pairs, 1670 based on Foata normal form. 204/8699 useless extension candidates. Maximal degree in co-relation 17200. Up to 5023 conditions per place. [2023-08-25 05:42:45,830 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 74 selfloop transitions, 13 changer transitions 0/87 dead transitions. [2023-08-25 05:42:45,830 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 87 transitions, 364 flow [2023-08-25 05:42:45,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 05:42:45,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 05:42:45,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1123 transitions. [2023-08-25 05:42:45,835 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4083636363636364 [2023-08-25 05:42:45,835 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1123 transitions. [2023-08-25 05:42:45,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1123 transitions. [2023-08-25 05:42:45,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:42:45,836 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1123 transitions. [2023-08-25 05:42:45,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 224.6) internal successors, (1123), 5 states have internal predecessors, (1123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:45,844 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 550.0) internal successors, (3300), 6 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:45,845 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 550.0) internal successors, (3300), 6 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:45,845 INFO L175 Difference]: Start difference. First operand has 40 places, 34 transitions, 76 flow. Second operand 5 states and 1123 transitions. [2023-08-25 05:42:45,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 87 transitions, 364 flow [2023-08-25 05:42:45,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 87 transitions, 364 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:42:45,849 INFO L231 Difference]: Finished difference. Result has 47 places, 46 transitions, 162 flow [2023-08-25 05:42:45,849 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=162, PETRI_PLACES=47, PETRI_TRANSITIONS=46} [2023-08-25 05:42:45,850 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -62 predicate places. [2023-08-25 05:42:45,850 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 46 transitions, 162 flow [2023-08-25 05:42:45,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 213.8) internal successors, (1069), 5 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:45,854 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:42:45,854 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:42:45,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 05:42:45,858 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 05:42:45,860 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:42:45,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1924587212, now seen corresponding path program 2 times [2023-08-25 05:42:45,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:42:45,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477605376] [2023-08-25 05:42:45,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:42:45,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:42:45,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:42:46,088 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 05:42:46,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:42:46,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477605376] [2023-08-25 05:42:46,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477605376] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:42:46,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:42:46,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 05:42:46,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698308936] [2023-08-25 05:42:46,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:42:46,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 05:42:46,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:42:46,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 05:42:46,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 05:42:46,093 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 05:42:46,094 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 46 transitions, 162 flow. Second operand has 5 states, 5 states have (on average 213.8) internal successors, (1069), 5 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:46,094 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:42:46,094 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 05:42:46,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:42:46,719 INFO L124 PetriNetUnfolderBase]: 5112/7293 cut-off events. [2023-08-25 05:42:46,719 INFO L125 PetriNetUnfolderBase]: For 2826/2826 co-relation queries the response was YES. [2023-08-25 05:42:46,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18824 conditions, 7293 events. 5112/7293 cut-off events. For 2826/2826 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 34545 event pairs, 1368 based on Foata normal form. 242/7535 useless extension candidates. Maximal degree in co-relation 18817. Up to 4693 conditions per place. [2023-08-25 05:42:46,754 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 72 selfloop transitions, 18 changer transitions 0/90 dead transitions. [2023-08-25 05:42:46,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 90 transitions, 470 flow [2023-08-25 05:42:46,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 05:42:46,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 05:42:46,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1121 transitions. [2023-08-25 05:42:46,758 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40763636363636363 [2023-08-25 05:42:46,758 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1121 transitions. [2023-08-25 05:42:46,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1121 transitions. [2023-08-25 05:42:46,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:42:46,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1121 transitions. [2023-08-25 05:42:46,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 224.2) internal successors, (1121), 5 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:46,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 550.0) internal successors, (3300), 6 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:46,766 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 550.0) internal successors, (3300), 6 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:46,766 INFO L175 Difference]: Start difference. First operand has 47 places, 46 transitions, 162 flow. Second operand 5 states and 1121 transitions. [2023-08-25 05:42:46,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 90 transitions, 470 flow [2023-08-25 05:42:46,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 90 transitions, 470 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:42:46,770 INFO L231 Difference]: Finished difference. Result has 53 places, 52 transitions, 249 flow [2023-08-25 05:42:46,770 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=249, PETRI_PLACES=53, PETRI_TRANSITIONS=52} [2023-08-25 05:42:46,771 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -56 predicate places. [2023-08-25 05:42:46,771 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 52 transitions, 249 flow [2023-08-25 05:42:46,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 213.8) internal successors, (1069), 5 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:46,772 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:42:46,772 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:42:46,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 05:42:46,773 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 05:42:46,773 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:42:46,773 INFO L85 PathProgramCache]: Analyzing trace with hash -539493472, now seen corresponding path program 3 times [2023-08-25 05:42:46,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:42:46,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308339620] [2023-08-25 05:42:46,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:42:46,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:42:46,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:42:46,976 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 05:42:46,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:42:46,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308339620] [2023-08-25 05:42:46,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308339620] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:42:46,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:42:46,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 05:42:46,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841847224] [2023-08-25 05:42:46,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:42:46,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 05:42:46,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:42:46,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 05:42:46,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-25 05:42:46,982 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 05:42:46,983 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 52 transitions, 249 flow. Second operand has 6 states, 6 states have (on average 212.66666666666666) internal successors, (1276), 6 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:46,983 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:42:46,983 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 05:42:46,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:42:48,211 INFO L124 PetriNetUnfolderBase]: 9380/13673 cut-off events. [2023-08-25 05:42:48,211 INFO L125 PetriNetUnfolderBase]: For 7525/7525 co-relation queries the response was YES. [2023-08-25 05:42:48,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36209 conditions, 13673 events. 9380/13673 cut-off events. For 7525/7525 co-relation queries the response was YES. Maximal size of possible extension queue 507. Compared 77504 event pairs, 2226 based on Foata normal form. 326/13999 useless extension candidates. Maximal degree in co-relation 36199. Up to 4947 conditions per place. [2023-08-25 05:42:48,284 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 102 selfloop transitions, 47 changer transitions 0/149 dead transitions. [2023-08-25 05:42:48,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 149 transitions, 910 flow [2023-08-25 05:42:48,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 05:42:48,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 05:42:48,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1362 transitions. [2023-08-25 05:42:48,288 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4127272727272727 [2023-08-25 05:42:48,288 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1362 transitions. [2023-08-25 05:42:48,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1362 transitions. [2023-08-25 05:42:48,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:42:48,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1362 transitions. [2023-08-25 05:42:48,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 227.0) internal successors, (1362), 6 states have internal predecessors, (1362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:48,296 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 550.0) internal successors, (3850), 7 states have internal predecessors, (3850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:48,298 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 550.0) internal successors, (3850), 7 states have internal predecessors, (3850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:48,298 INFO L175 Difference]: Start difference. First operand has 53 places, 52 transitions, 249 flow. Second operand 6 states and 1362 transitions. [2023-08-25 05:42:48,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 149 transitions, 910 flow [2023-08-25 05:42:48,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 149 transitions, 880 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 05:42:48,305 INFO L231 Difference]: Finished difference. Result has 58 places, 82 transitions, 569 flow [2023-08-25 05:42:48,305 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=569, PETRI_PLACES=58, PETRI_TRANSITIONS=82} [2023-08-25 05:42:48,305 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -51 predicate places. [2023-08-25 05:42:48,306 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 82 transitions, 569 flow [2023-08-25 05:42:48,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 212.66666666666666) internal successors, (1276), 6 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:48,307 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:42:48,307 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:42:48,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 05:42:48,307 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 05:42:48,307 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:42:48,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1450499282, now seen corresponding path program 4 times [2023-08-25 05:42:48,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:42:48,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674394329] [2023-08-25 05:42:48,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:42:48,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:42:48,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:42:48,505 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 05:42:48,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:42:48,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674394329] [2023-08-25 05:42:48,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674394329] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:42:48,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:42:48,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 05:42:48,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183367372] [2023-08-25 05:42:48,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:42:48,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 05:42:48,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:42:48,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 05:42:48,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-25 05:42:48,512 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 05:42:48,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 82 transitions, 569 flow. Second operand has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:48,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:42:48,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 05:42:48,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:42:50,049 INFO L124 PetriNetUnfolderBase]: 10114/14963 cut-off events. [2023-08-25 05:42:50,049 INFO L125 PetriNetUnfolderBase]: For 19894/19894 co-relation queries the response was YES. [2023-08-25 05:42:50,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47203 conditions, 14963 events. 10114/14963 cut-off events. For 19894/19894 co-relation queries the response was YES. Maximal size of possible extension queue 582. Compared 89015 event pairs, 2430 based on Foata normal form. 500/15463 useless extension candidates. Maximal degree in co-relation 47191. Up to 5031 conditions per place. [2023-08-25 05:42:50,125 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 131 selfloop transitions, 72 changer transitions 0/203 dead transitions. [2023-08-25 05:42:50,125 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 203 transitions, 1462 flow [2023-08-25 05:42:50,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 05:42:50,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 05:42:50,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1818 transitions. [2023-08-25 05:42:50,130 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4131818181818182 [2023-08-25 05:42:50,130 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1818 transitions. [2023-08-25 05:42:50,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1818 transitions. [2023-08-25 05:42:50,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:42:50,131 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1818 transitions. [2023-08-25 05:42:50,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 227.25) internal successors, (1818), 8 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:50,140 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 550.0) internal successors, (4950), 9 states have internal predecessors, (4950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:50,142 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 550.0) internal successors, (4950), 9 states have internal predecessors, (4950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:50,143 INFO L175 Difference]: Start difference. First operand has 58 places, 82 transitions, 569 flow. Second operand 8 states and 1818 transitions. [2023-08-25 05:42:50,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 203 transitions, 1462 flow [2023-08-25 05:42:50,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 203 transitions, 1443 flow, removed 7 selfloop flow, removed 1 redundant places. [2023-08-25 05:42:50,157 INFO L231 Difference]: Finished difference. Result has 68 places, 107 transitions, 987 flow [2023-08-25 05:42:50,157 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=554, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=987, PETRI_PLACES=68, PETRI_TRANSITIONS=107} [2023-08-25 05:42:50,159 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -41 predicate places. [2023-08-25 05:42:50,159 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 107 transitions, 987 flow [2023-08-25 05:42:50,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:50,160 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:42:50,160 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:42:50,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 05:42:50,161 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 05:42:50,161 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:42:50,162 INFO L85 PathProgramCache]: Analyzing trace with hash 815100194, now seen corresponding path program 5 times [2023-08-25 05:42:50,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:42:50,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019088067] [2023-08-25 05:42:50,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:42:50,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:42:50,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:42:50,776 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 05:42:50,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:42:50,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019088067] [2023-08-25 05:42:50,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019088067] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:42:50,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:42:50,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 05:42:50,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140664808] [2023-08-25 05:42:50,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:42:50,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 05:42:50,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:42:50,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 05:42:50,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-25 05:42:50,779 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 550 [2023-08-25 05:42:50,781 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 107 transitions, 987 flow. Second operand has 6 states, 6 states have (on average 214.66666666666666) internal successors, (1288), 6 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:50,781 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:42:50,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 550 [2023-08-25 05:42:50,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:42:52,740 INFO L124 PetriNetUnfolderBase]: 13793/20595 cut-off events. [2023-08-25 05:42:52,741 INFO L125 PetriNetUnfolderBase]: For 54708/54708 co-relation queries the response was YES. [2023-08-25 05:42:52,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74877 conditions, 20595 events. 13793/20595 cut-off events. For 54708/54708 co-relation queries the response was YES. Maximal size of possible extension queue 821. Compared 129549 event pairs, 4010 based on Foata normal form. 1/20596 useless extension candidates. Maximal degree in co-relation 74860. Up to 10521 conditions per place. [2023-08-25 05:42:52,831 INFO L140 encePairwiseOnDemand]: 543/550 looper letters, 228 selfloop transitions, 12 changer transitions 69/309 dead transitions. [2023-08-25 05:42:52,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 309 transitions, 3359 flow [2023-08-25 05:42:52,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 05:42:52,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 05:42:52,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1369 transitions. [2023-08-25 05:42:52,836 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41484848484848486 [2023-08-25 05:42:52,836 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1369 transitions. [2023-08-25 05:42:52,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1369 transitions. [2023-08-25 05:42:52,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:42:52,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1369 transitions. [2023-08-25 05:42:52,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 228.16666666666666) internal successors, (1369), 6 states have internal predecessors, (1369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:52,844 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 550.0) internal successors, (3850), 7 states have internal predecessors, (3850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:52,845 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 550.0) internal successors, (3850), 7 states have internal predecessors, (3850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:52,845 INFO L175 Difference]: Start difference. First operand has 68 places, 107 transitions, 987 flow. Second operand 6 states and 1369 transitions. [2023-08-25 05:42:52,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 309 transitions, 3359 flow [2023-08-25 05:42:52,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 309 transitions, 3126 flow, removed 12 selfloop flow, removed 3 redundant places. [2023-08-25 05:42:52,949 INFO L231 Difference]: Finished difference. Result has 73 places, 116 transitions, 926 flow [2023-08-25 05:42:52,949 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=893, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=926, PETRI_PLACES=73, PETRI_TRANSITIONS=116} [2023-08-25 05:42:52,950 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -36 predicate places. [2023-08-25 05:42:52,950 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 116 transitions, 926 flow [2023-08-25 05:42:52,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 214.66666666666666) internal successors, (1288), 6 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:52,951 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:42:52,951 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:42:52,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 05:42:52,952 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 05:42:52,952 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:42:52,952 INFO L85 PathProgramCache]: Analyzing trace with hash -804151248, now seen corresponding path program 6 times [2023-08-25 05:42:52,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:42:52,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497427351] [2023-08-25 05:42:52,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:42:52,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:42:53,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:42:53,097 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 05:42:53,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:42:53,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497427351] [2023-08-25 05:42:53,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497427351] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:42:53,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:42:53,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 05:42:53,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413731761] [2023-08-25 05:42:53,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:42:53,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 05:42:53,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:42:53,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 05:42:53,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 05:42:53,100 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 05:42:53,101 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 116 transitions, 926 flow. Second operand has 5 states, 5 states have (on average 213.8) internal successors, (1069), 5 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:53,101 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:42:53,102 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 05:42:53,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:42:54,062 INFO L124 PetriNetUnfolderBase]: 5166/8037 cut-off events. [2023-08-25 05:42:54,062 INFO L125 PetriNetUnfolderBase]: For 17220/17220 co-relation queries the response was YES. [2023-08-25 05:42:54,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29739 conditions, 8037 events. 5166/8037 cut-off events. For 17220/17220 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 45759 event pairs, 1754 based on Foata normal form. 132/8169 useless extension candidates. Maximal degree in co-relation 29719. Up to 7403 conditions per place. [2023-08-25 05:42:54,095 INFO L140 encePairwiseOnDemand]: 541/550 looper letters, 103 selfloop transitions, 34 changer transitions 3/140 dead transitions. [2023-08-25 05:42:54,096 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 140 transitions, 1300 flow [2023-08-25 05:42:54,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 05:42:54,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 05:42:54,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1113 transitions. [2023-08-25 05:42:54,099 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4047272727272727 [2023-08-25 05:42:54,099 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1113 transitions. [2023-08-25 05:42:54,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1113 transitions. [2023-08-25 05:42:54,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:42:54,100 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1113 transitions. [2023-08-25 05:42:54,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 222.6) internal successors, (1113), 5 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:54,106 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 550.0) internal successors, (3300), 6 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:54,107 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 550.0) internal successors, (3300), 6 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:54,107 INFO L175 Difference]: Start difference. First operand has 73 places, 116 transitions, 926 flow. Second operand 5 states and 1113 transitions. [2023-08-25 05:42:54,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 140 transitions, 1300 flow [2023-08-25 05:42:54,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 140 transitions, 1289 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-25 05:42:54,148 INFO L231 Difference]: Finished difference. Result has 76 places, 108 transitions, 956 flow [2023-08-25 05:42:54,148 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=729, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=956, PETRI_PLACES=76, PETRI_TRANSITIONS=108} [2023-08-25 05:42:54,149 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -33 predicate places. [2023-08-25 05:42:54,149 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 108 transitions, 956 flow [2023-08-25 05:42:54,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 213.8) internal successors, (1069), 5 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:54,149 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:42:54,149 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:42:54,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 05:42:54,150 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 05:42:54,150 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:42:54,150 INFO L85 PathProgramCache]: Analyzing trace with hash 741804580, now seen corresponding path program 7 times [2023-08-25 05:42:54,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:42:54,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410356441] [2023-08-25 05:42:54,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:42:54,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:42:54,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:42:54,313 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 05:42:54,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:42:54,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410356441] [2023-08-25 05:42:54,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410356441] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:42:54,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:42:54,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-25 05:42:54,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185848264] [2023-08-25 05:42:54,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:42:54,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-25 05:42:54,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:42:54,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-25 05:42:54,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-08-25 05:42:54,316 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 05:42:54,318 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 108 transitions, 956 flow. Second operand has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:54,318 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:42:54,318 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 05:42:54,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:42:55,322 INFO L124 PetriNetUnfolderBase]: 5909/9336 cut-off events. [2023-08-25 05:42:55,322 INFO L125 PetriNetUnfolderBase]: For 20004/20004 co-relation queries the response was YES. [2023-08-25 05:42:55,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34533 conditions, 9336 events. 5909/9336 cut-off events. For 20004/20004 co-relation queries the response was YES. Maximal size of possible extension queue 366. Compared 56771 event pairs, 1131 based on Foata normal form. 50/9386 useless extension candidates. Maximal degree in co-relation 34512. Up to 3026 conditions per place. [2023-08-25 05:42:55,377 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 154 selfloop transitions, 112 changer transitions 1/267 dead transitions. [2023-08-25 05:42:55,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 267 transitions, 2414 flow [2023-08-25 05:42:55,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 05:42:55,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 05:42:55,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2012 transitions. [2023-08-25 05:42:55,383 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4064646464646465 [2023-08-25 05:42:55,383 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2012 transitions. [2023-08-25 05:42:55,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2012 transitions. [2023-08-25 05:42:55,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:42:55,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2012 transitions. [2023-08-25 05:42:55,389 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 223.55555555555554) internal successors, (2012), 9 states have internal predecessors, (2012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:55,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 550.0) internal successors, (5500), 10 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:55,396 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 550.0) internal successors, (5500), 10 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:55,396 INFO L175 Difference]: Start difference. First operand has 76 places, 108 transitions, 956 flow. Second operand 9 states and 2012 transitions. [2023-08-25 05:42:55,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 267 transitions, 2414 flow [2023-08-25 05:42:55,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 267 transitions, 2373 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 05:42:55,473 INFO L231 Difference]: Finished difference. Result has 85 places, 157 transitions, 1764 flow [2023-08-25 05:42:55,473 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=923, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1764, PETRI_PLACES=85, PETRI_TRANSITIONS=157} [2023-08-25 05:42:55,475 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -24 predicate places. [2023-08-25 05:42:55,475 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 157 transitions, 1764 flow [2023-08-25 05:42:55,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:55,476 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:42:55,476 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:42:55,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 05:42:55,477 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 05:42:55,477 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:42:55,477 INFO L85 PathProgramCache]: Analyzing trace with hash -797981306, now seen corresponding path program 8 times [2023-08-25 05:42:55,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:42:55,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825722677] [2023-08-25 05:42:55,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:42:55,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:42:55,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:42:55,673 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 05:42:55,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:42:55,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825722677] [2023-08-25 05:42:55,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825722677] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:42:55,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:42:55,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 05:42:55,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389562213] [2023-08-25 05:42:55,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:42:55,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 05:42:55,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:42:55,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 05:42:55,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-25 05:42:55,681 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 05:42:55,682 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 157 transitions, 1764 flow. Second operand has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:55,682 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:42:55,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 05:42:55,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:42:56,688 INFO L124 PetriNetUnfolderBase]: 5734/9177 cut-off events. [2023-08-25 05:42:56,688 INFO L125 PetriNetUnfolderBase]: For 33036/33036 co-relation queries the response was YES. [2023-08-25 05:42:56,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39656 conditions, 9177 events. 5734/9177 cut-off events. For 33036/33036 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 56626 event pairs, 1178 based on Foata normal form. 144/9321 useless extension candidates. Maximal degree in co-relation 39632. Up to 4279 conditions per place. [2023-08-25 05:42:56,751 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 169 selfloop transitions, 103 changer transitions 8/280 dead transitions. [2023-08-25 05:42:56,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 280 transitions, 2999 flow [2023-08-25 05:42:56,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 05:42:56,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 05:42:56,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1804 transitions. [2023-08-25 05:42:56,757 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41 [2023-08-25 05:42:56,757 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1804 transitions. [2023-08-25 05:42:56,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1804 transitions. [2023-08-25 05:42:56,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:42:56,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1804 transitions. [2023-08-25 05:42:56,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 225.5) internal successors, (1804), 8 states have internal predecessors, (1804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:56,767 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 550.0) internal successors, (4950), 9 states have internal predecessors, (4950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:56,769 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 550.0) internal successors, (4950), 9 states have internal predecessors, (4950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:56,769 INFO L175 Difference]: Start difference. First operand has 85 places, 157 transitions, 1764 flow. Second operand 8 states and 1804 transitions. [2023-08-25 05:42:56,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 280 transitions, 2999 flow [2023-08-25 05:42:56,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 280 transitions, 2955 flow, removed 20 selfloop flow, removed 1 redundant places. [2023-08-25 05:42:56,871 INFO L231 Difference]: Finished difference. Result has 93 places, 166 transitions, 2073 flow [2023-08-25 05:42:56,871 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=1726, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2073, PETRI_PLACES=93, PETRI_TRANSITIONS=166} [2023-08-25 05:42:56,872 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -16 predicate places. [2023-08-25 05:42:56,872 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 166 transitions, 2073 flow [2023-08-25 05:42:56,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:56,873 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:42:56,873 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:42:56,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 05:42:56,874 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 05:42:56,874 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:42:56,874 INFO L85 PathProgramCache]: Analyzing trace with hash 428640432, now seen corresponding path program 9 times [2023-08-25 05:42:56,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:42:56,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396867058] [2023-08-25 05:42:56,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:42:56,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:42:56,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:42:57,052 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 05:42:57,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:42:57,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396867058] [2023-08-25 05:42:57,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396867058] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:42:57,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:42:57,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 05:42:57,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536443502] [2023-08-25 05:42:57,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:42:57,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 05:42:57,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:42:57,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 05:42:57,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-25 05:42:57,057 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 05:42:57,064 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 166 transitions, 2073 flow. Second operand has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:57,064 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:42:57,064 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 05:42:57,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:42:58,120 INFO L124 PetriNetUnfolderBase]: 4234/7011 cut-off events. [2023-08-25 05:42:58,120 INFO L125 PetriNetUnfolderBase]: For 27465/27465 co-relation queries the response was YES. [2023-08-25 05:42:58,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31056 conditions, 7011 events. 4234/7011 cut-off events. For 27465/27465 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 43175 event pairs, 1032 based on Foata normal form. 360/7371 useless extension candidates. Maximal degree in co-relation 31029. Up to 3627 conditions per place. [2023-08-25 05:42:58,159 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 144 selfloop transitions, 115 changer transitions 26/285 dead transitions. [2023-08-25 05:42:58,159 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 285 transitions, 3509 flow [2023-08-25 05:42:58,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 05:42:58,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 05:42:58,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1798 transitions. [2023-08-25 05:42:58,164 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40863636363636363 [2023-08-25 05:42:58,164 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1798 transitions. [2023-08-25 05:42:58,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1798 transitions. [2023-08-25 05:42:58,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:42:58,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1798 transitions. [2023-08-25 05:42:58,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 224.75) internal successors, (1798), 8 states have internal predecessors, (1798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:58,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 550.0) internal successors, (4950), 9 states have internal predecessors, (4950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:58,173 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 550.0) internal successors, (4950), 9 states have internal predecessors, (4950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:58,174 INFO L175 Difference]: Start difference. First operand has 93 places, 166 transitions, 2073 flow. Second operand 8 states and 1798 transitions. [2023-08-25 05:42:58,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 285 transitions, 3509 flow [2023-08-25 05:42:58,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 285 transitions, 3441 flow, removed 14 selfloop flow, removed 3 redundant places. [2023-08-25 05:42:58,250 INFO L231 Difference]: Finished difference. Result has 100 places, 177 transitions, 2495 flow [2023-08-25 05:42:58,250 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=2015, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2495, PETRI_PLACES=100, PETRI_TRANSITIONS=177} [2023-08-25 05:42:58,250 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -9 predicate places. [2023-08-25 05:42:58,251 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 177 transitions, 2495 flow [2023-08-25 05:42:58,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:58,251 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:42:58,251 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:42:58,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 05:42:58,252 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 05:42:58,252 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:42:58,252 INFO L85 PathProgramCache]: Analyzing trace with hash 987333846, now seen corresponding path program 10 times [2023-08-25 05:42:58,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:42:58,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598756345] [2023-08-25 05:42:58,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:42:58,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:42:58,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:42:58,451 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 05:42:58,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:42:58,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598756345] [2023-08-25 05:42:58,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598756345] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:42:58,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:42:58,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 05:42:58,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575877809] [2023-08-25 05:42:58,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:42:58,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 05:42:58,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:42:58,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 05:42:58,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-08-25 05:42:58,454 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 05:42:58,455 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 177 transitions, 2495 flow. Second operand has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:58,455 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:42:58,455 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 05:42:58,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:42:59,545 INFO L124 PetriNetUnfolderBase]: 4450/7505 cut-off events. [2023-08-25 05:42:59,545 INFO L125 PetriNetUnfolderBase]: For 34783/34783 co-relation queries the response was YES. [2023-08-25 05:42:59,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33941 conditions, 7505 events. 4450/7505 cut-off events. For 34783/34783 co-relation queries the response was YES. Maximal size of possible extension queue 309. Compared 48116 event pairs, 378 based on Foata normal form. 88/7593 useless extension candidates. Maximal degree in co-relation 33912. Up to 2729 conditions per place. [2023-08-25 05:42:59,590 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 146 selfloop transitions, 151 changer transitions 8/305 dead transitions. [2023-08-25 05:42:59,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 305 transitions, 3781 flow [2023-08-25 05:42:59,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 05:42:59,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 05:42:59,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1589 transitions. [2023-08-25 05:42:59,595 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4127272727272727 [2023-08-25 05:42:59,595 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1589 transitions. [2023-08-25 05:42:59,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1589 transitions. [2023-08-25 05:42:59,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:42:59,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1589 transitions. [2023-08-25 05:42:59,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 227.0) internal successors, (1589), 7 states have internal predecessors, (1589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:59,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 550.0) internal successors, (4400), 8 states have internal predecessors, (4400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:59,604 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 550.0) internal successors, (4400), 8 states have internal predecessors, (4400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:59,604 INFO L175 Difference]: Start difference. First operand has 100 places, 177 transitions, 2495 flow. Second operand 7 states and 1589 transitions. [2023-08-25 05:42:59,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 305 transitions, 3781 flow [2023-08-25 05:42:59,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 305 transitions, 3710 flow, removed 10 selfloop flow, removed 3 redundant places. [2023-08-25 05:42:59,689 INFO L231 Difference]: Finished difference. Result has 106 places, 201 transitions, 3154 flow [2023-08-25 05:42:59,690 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=2434, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=132, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3154, PETRI_PLACES=106, PETRI_TRANSITIONS=201} [2023-08-25 05:42:59,690 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -3 predicate places. [2023-08-25 05:42:59,690 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 201 transitions, 3154 flow [2023-08-25 05:42:59,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:59,692 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:42:59,692 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] [2023-08-25 05:42:59,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 05:42:59,692 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 05:42:59,692 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:42:59,693 INFO L85 PathProgramCache]: Analyzing trace with hash -325954334, now seen corresponding path program 11 times [2023-08-25 05:42:59,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:42:59,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408081471] [2023-08-25 05:42:59,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:42:59,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:42:59,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:42:59,877 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 05:42:59,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:42:59,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408081471] [2023-08-25 05:42:59,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408081471] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:42:59,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:42:59,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-25 05:42:59,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665036520] [2023-08-25 05:42:59,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:42:59,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-25 05:42:59,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:42:59,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-25 05:42:59,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-08-25 05:42:59,881 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 05:42:59,883 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 201 transitions, 3154 flow. Second operand has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:59,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:42:59,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 05:42:59,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:43:00,981 INFO L124 PetriNetUnfolderBase]: 4429/7492 cut-off events. [2023-08-25 05:43:00,981 INFO L125 PetriNetUnfolderBase]: For 51079/51079 co-relation queries the response was YES. [2023-08-25 05:43:01,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37659 conditions, 7492 events. 4429/7492 cut-off events. For 51079/51079 co-relation queries the response was YES. Maximal size of possible extension queue 298. Compared 47799 event pairs, 866 based on Foata normal form. 28/7520 useless extension candidates. Maximal degree in co-relation 37628. Up to 3502 conditions per place. [2023-08-25 05:43:01,030 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 175 selfloop transitions, 135 changer transitions 10/320 dead transitions. [2023-08-25 05:43:01,031 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 320 transitions, 4442 flow [2023-08-25 05:43:01,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 05:43:01,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 05:43:01,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2022 transitions. [2023-08-25 05:43:01,036 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4084848484848485 [2023-08-25 05:43:01,036 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2022 transitions. [2023-08-25 05:43:01,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2022 transitions. [2023-08-25 05:43:01,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:43:01,037 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2022 transitions. [2023-08-25 05:43:01,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 224.66666666666666) internal successors, (2022), 9 states have internal predecessors, (2022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:01,046 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 550.0) internal successors, (5500), 10 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:01,047 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 550.0) internal successors, (5500), 10 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:01,047 INFO L175 Difference]: Start difference. First operand has 106 places, 201 transitions, 3154 flow. Second operand 9 states and 2022 transitions. [2023-08-25 05:43:01,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 320 transitions, 4442 flow [2023-08-25 05:43:01,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 320 transitions, 4326 flow, removed 40 selfloop flow, removed 2 redundant places. [2023-08-25 05:43:01,176 INFO L231 Difference]: Finished difference. Result has 113 places, 204 transitions, 3347 flow [2023-08-25 05:43:01,176 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=3044, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3347, PETRI_PLACES=113, PETRI_TRANSITIONS=204} [2023-08-25 05:43:01,176 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 4 predicate places. [2023-08-25 05:43:01,176 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 204 transitions, 3347 flow [2023-08-25 05:43:01,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:01,177 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:43:01,177 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:43:01,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 05:43:01,177 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 05:43:01,177 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:43:01,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1931525040, now seen corresponding path program 12 times [2023-08-25 05:43:01,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:43:01,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987002533] [2023-08-25 05:43:01,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:43:01,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:43:01,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:43:01,367 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 05:43:01,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:43:01,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987002533] [2023-08-25 05:43:01,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987002533] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:43:01,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:43:01,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 05:43:01,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102186932] [2023-08-25 05:43:01,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:43:01,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 05:43:01,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:43:01,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 05:43:01,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-08-25 05:43:01,371 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 05:43:01,372 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 204 transitions, 3347 flow. Second operand has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:01,372 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:43:01,372 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 05:43:01,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:43:02,382 INFO L124 PetriNetUnfolderBase]: 4040/6973 cut-off events. [2023-08-25 05:43:02,382 INFO L125 PetriNetUnfolderBase]: For 54553/54553 co-relation queries the response was YES. [2023-08-25 05:43:02,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36192 conditions, 6973 events. 4040/6973 cut-off events. For 54553/54553 co-relation queries the response was YES. Maximal size of possible extension queue 307. Compared 45553 event pairs, 375 based on Foata normal form. 132/7105 useless extension candidates. Maximal degree in co-relation 36160. Up to 2421 conditions per place. [2023-08-25 05:43:02,426 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 140 selfloop transitions, 158 changer transitions 12/310 dead transitions. [2023-08-25 05:43:02,426 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 310 transitions, 4610 flow [2023-08-25 05:43:02,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 05:43:02,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 05:43:02,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1586 transitions. [2023-08-25 05:43:02,429 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41194805194805195 [2023-08-25 05:43:02,429 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1586 transitions. [2023-08-25 05:43:02,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1586 transitions. [2023-08-25 05:43:02,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:43:02,430 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1586 transitions. [2023-08-25 05:43:02,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 226.57142857142858) internal successors, (1586), 7 states have internal predecessors, (1586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:02,435 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 550.0) internal successors, (4400), 8 states have internal predecessors, (4400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:02,435 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 550.0) internal successors, (4400), 8 states have internal predecessors, (4400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:02,435 INFO L175 Difference]: Start difference. First operand has 113 places, 204 transitions, 3347 flow. Second operand 7 states and 1586 transitions. [2023-08-25 05:43:02,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 310 transitions, 4610 flow [2023-08-25 05:43:02,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 310 transitions, 4409 flow, removed 9 selfloop flow, removed 6 redundant places. [2023-08-25 05:43:02,580 INFO L231 Difference]: Finished difference. Result has 114 places, 211 transitions, 3618 flow [2023-08-25 05:43:02,580 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=3164, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=149, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3618, PETRI_PLACES=114, PETRI_TRANSITIONS=211} [2023-08-25 05:43:02,580 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 5 predicate places. [2023-08-25 05:43:02,581 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 211 transitions, 3618 flow [2023-08-25 05:43:02,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:02,581 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:43:02,581 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:43:02,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 05:43:02,581 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 05:43:02,581 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:43:02,582 INFO L85 PathProgramCache]: Analyzing trace with hash -26018462, now seen corresponding path program 13 times [2023-08-25 05:43:02,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:43:02,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203442685] [2023-08-25 05:43:02,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:43:02,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:43:02,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:43:02,768 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 05:43:02,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:43:02,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203442685] [2023-08-25 05:43:02,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203442685] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:43:02,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:43:02,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 05:43:02,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631297443] [2023-08-25 05:43:02,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:43:02,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 05:43:02,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:43:02,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 05:43:02,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-08-25 05:43:02,771 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 05:43:02,773 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 211 transitions, 3618 flow. Second operand has 9 states, 9 states have (on average 210.77777777777777) internal successors, (1897), 9 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:02,773 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:43:02,773 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 05:43:02,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:43:04,113 INFO L124 PetriNetUnfolderBase]: 3938/6813 cut-off events. [2023-08-25 05:43:04,113 INFO L125 PetriNetUnfolderBase]: For 61131/61131 co-relation queries the response was YES. [2023-08-25 05:43:04,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36400 conditions, 6813 events. 3938/6813 cut-off events. For 61131/61131 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 44135 event pairs, 746 based on Foata normal form. 14/6827 useless extension candidates. Maximal degree in co-relation 36368. Up to 2939 conditions per place. [2023-08-25 05:43:04,156 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 191 selfloop transitions, 136 changer transitions 16/343 dead transitions. [2023-08-25 05:43:04,156 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 343 transitions, 4970 flow [2023-08-25 05:43:04,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 05:43:04,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 05:43:04,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2669 transitions. [2023-08-25 05:43:04,161 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4043939393939394 [2023-08-25 05:43:04,161 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2669 transitions. [2023-08-25 05:43:04,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2669 transitions. [2023-08-25 05:43:04,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:43:04,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2669 transitions. [2023-08-25 05:43:04,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 222.41666666666666) internal successors, (2669), 12 states have internal predecessors, (2669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:04,172 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 550.0) internal successors, (7150), 13 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:04,173 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 550.0) internal successors, (7150), 13 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:04,173 INFO L175 Difference]: Start difference. First operand has 114 places, 211 transitions, 3618 flow. Second operand 12 states and 2669 transitions. [2023-08-25 05:43:04,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 343 transitions, 4970 flow [2023-08-25 05:43:04,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 343 transitions, 4699 flow, removed 13 selfloop flow, removed 5 redundant places. [2023-08-25 05:43:04,296 INFO L231 Difference]: Finished difference. Result has 121 places, 209 transitions, 3573 flow [2023-08-25 05:43:04,296 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=3369, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=134, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3573, PETRI_PLACES=121, PETRI_TRANSITIONS=209} [2023-08-25 05:43:04,297 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 12 predicate places. [2023-08-25 05:43:04,297 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 209 transitions, 3573 flow [2023-08-25 05:43:04,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 210.77777777777777) internal successors, (1897), 9 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:04,297 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:43:04,297 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:43:04,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-25 05:43:04,297 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 05:43:04,298 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:43:04,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1945340892, now seen corresponding path program 14 times [2023-08-25 05:43:04,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:43:04,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066445919] [2023-08-25 05:43:04,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:43:04,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:43:04,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:43:04,463 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 05:43:04,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:43:04,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066445919] [2023-08-25 05:43:04,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066445919] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:43:04,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:43:04,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 05:43:04,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226699537] [2023-08-25 05:43:04,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:43:04,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 05:43:04,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:43:04,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 05:43:04,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-08-25 05:43:04,466 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 05:43:04,468 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 209 transitions, 3573 flow. Second operand has 9 states, 9 states have (on average 210.77777777777777) internal successors, (1897), 9 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:04,468 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:43:04,468 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 05:43:04,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:43:05,609 INFO L124 PetriNetUnfolderBase]: 4054/7057 cut-off events. [2023-08-25 05:43:05,610 INFO L125 PetriNetUnfolderBase]: For 64880/64880 co-relation queries the response was YES. [2023-08-25 05:43:05,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37482 conditions, 7057 events. 4054/7057 cut-off events. For 64880/64880 co-relation queries the response was YES. Maximal size of possible extension queue 317. Compared 46606 event pairs, 774 based on Foata normal form. 54/7111 useless extension candidates. Maximal degree in co-relation 37450. Up to 2945 conditions per place. [2023-08-25 05:43:05,638 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 161 selfloop transitions, 114 changer transitions 85/360 dead transitions. [2023-08-25 05:43:05,638 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 360 transitions, 5386 flow [2023-08-25 05:43:05,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 05:43:05,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 05:43:05,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2670 transitions. [2023-08-25 05:43:05,642 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40454545454545454 [2023-08-25 05:43:05,642 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2670 transitions. [2023-08-25 05:43:05,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2670 transitions. [2023-08-25 05:43:05,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:43:05,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2670 transitions. [2023-08-25 05:43:05,646 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 222.5) internal successors, (2670), 12 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:05,653 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 550.0) internal successors, (7150), 13 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:05,653 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 550.0) internal successors, (7150), 13 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:05,653 INFO L175 Difference]: Start difference. First operand has 121 places, 209 transitions, 3573 flow. Second operand 12 states and 2670 transitions. [2023-08-25 05:43:05,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 360 transitions, 5386 flow [2023-08-25 05:43:05,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 360 transitions, 4922 flow, removed 0 selfloop flow, removed 11 redundant places. [2023-08-25 05:43:05,779 INFO L231 Difference]: Finished difference. Result has 123 places, 187 transitions, 2960 flow [2023-08-25 05:43:05,780 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=3183, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2960, PETRI_PLACES=123, PETRI_TRANSITIONS=187} [2023-08-25 05:43:05,780 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 14 predicate places. [2023-08-25 05:43:05,780 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 187 transitions, 2960 flow [2023-08-25 05:43:05,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 210.77777777777777) internal successors, (1897), 9 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:05,781 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:43:05,781 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:43:05,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-25 05:43:05,781 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 05:43:05,782 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:43:05,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1061181284, now seen corresponding path program 15 times [2023-08-25 05:43:05,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:43:05,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965930906] [2023-08-25 05:43:05,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:43:05,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:43:05,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:43:05,986 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 05:43:05,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:43:05,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965930906] [2023-08-25 05:43:05,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965930906] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:43:05,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:43:05,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 05:43:05,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751359509] [2023-08-25 05:43:05,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:43:05,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 05:43:05,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:43:05,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 05:43:05,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-25 05:43:05,991 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 05:43:05,992 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 187 transitions, 2960 flow. Second operand has 6 states, 6 states have (on average 212.66666666666666) internal successors, (1276), 6 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:05,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:43:05,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 05:43:05,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:43:06,832 INFO L124 PetriNetUnfolderBase]: 3371/6024 cut-off events. [2023-08-25 05:43:06,832 INFO L125 PetriNetUnfolderBase]: For 57253/57253 co-relation queries the response was YES. [2023-08-25 05:43:06,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31978 conditions, 6024 events. 3371/6024 cut-off events. For 57253/57253 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 39508 event pairs, 724 based on Foata normal form. 76/6100 useless extension candidates. Maximal degree in co-relation 31944. Up to 2360 conditions per place. [2023-08-25 05:43:06,863 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 147 selfloop transitions, 120 changer transitions 15/282 dead transitions. [2023-08-25 05:43:06,863 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 282 transitions, 4188 flow [2023-08-25 05:43:06,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 05:43:06,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 05:43:06,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1351 transitions. [2023-08-25 05:43:06,865 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4093939393939394 [2023-08-25 05:43:06,865 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1351 transitions. [2023-08-25 05:43:06,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1351 transitions. [2023-08-25 05:43:06,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:43:06,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1351 transitions. [2023-08-25 05:43:06,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 225.16666666666666) internal successors, (1351), 6 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:06,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 550.0) internal successors, (3850), 7 states have internal predecessors, (3850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:06,869 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 550.0) internal successors, (3850), 7 states have internal predecessors, (3850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:06,869 INFO L175 Difference]: Start difference. First operand has 123 places, 187 transitions, 2960 flow. Second operand 6 states and 1351 transitions. [2023-08-25 05:43:06,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 282 transitions, 4188 flow [2023-08-25 05:43:06,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 282 transitions, 4065 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-08-25 05:43:06,969 INFO L231 Difference]: Finished difference. Result has 122 places, 207 transitions, 3562 flow [2023-08-25 05:43:06,969 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=2847, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3562, PETRI_PLACES=122, PETRI_TRANSITIONS=207} [2023-08-25 05:43:06,969 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 13 predicate places. [2023-08-25 05:43:06,969 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 207 transitions, 3562 flow [2023-08-25 05:43:06,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 212.66666666666666) internal successors, (1276), 6 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:06,970 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:43:06,970 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:43:06,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-25 05:43:06,970 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 05:43:06,970 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:43:06,970 INFO L85 PathProgramCache]: Analyzing trace with hash 79225516, now seen corresponding path program 16 times [2023-08-25 05:43:06,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:43:06,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932165303] [2023-08-25 05:43:06,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:43:06,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:43:07,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:43:07,145 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 05:43:07,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:43:07,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932165303] [2023-08-25 05:43:07,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932165303] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:43:07,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:43:07,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 05:43:07,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826586640] [2023-08-25 05:43:07,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:43:07,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 05:43:07,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:43:07,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 05:43:07,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-08-25 05:43:07,148 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 05:43:07,149 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 207 transitions, 3562 flow. Second operand has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:07,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:43:07,149 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 05:43:07,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:43:08,056 INFO L124 PetriNetUnfolderBase]: 3274/5893 cut-off events. [2023-08-25 05:43:08,056 INFO L125 PetriNetUnfolderBase]: For 63461/63461 co-relation queries the response was YES. [2023-08-25 05:43:08,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33067 conditions, 5893 events. 3274/5893 cut-off events. For 63461/63461 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 39122 event pairs, 268 based on Foata normal form. 20/5913 useless extension candidates. Maximal degree in co-relation 33032. Up to 2093 conditions per place. [2023-08-25 05:43:08,089 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 130 selfloop transitions, 154 changer transitions 16/300 dead transitions. [2023-08-25 05:43:08,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 300 transitions, 4663 flow [2023-08-25 05:43:08,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 05:43:08,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 05:43:08,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1586 transitions. [2023-08-25 05:43:08,092 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41194805194805195 [2023-08-25 05:43:08,092 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1586 transitions. [2023-08-25 05:43:08,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1586 transitions. [2023-08-25 05:43:08,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:43:08,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1586 transitions. [2023-08-25 05:43:08,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 226.57142857142858) internal successors, (1586), 7 states have internal predecessors, (1586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:08,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 550.0) internal successors, (4400), 8 states have internal predecessors, (4400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:08,096 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 550.0) internal successors, (4400), 8 states have internal predecessors, (4400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:08,096 INFO L175 Difference]: Start difference. First operand has 122 places, 207 transitions, 3562 flow. Second operand 7 states and 1586 transitions. [2023-08-25 05:43:08,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 300 transitions, 4663 flow [2023-08-25 05:43:08,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 300 transitions, 4578 flow, removed 24 selfloop flow, removed 4 redundant places. [2023-08-25 05:43:08,191 INFO L231 Difference]: Finished difference. Result has 125 places, 206 transitions, 3808 flow [2023-08-25 05:43:08,192 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=3478, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=150, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3808, PETRI_PLACES=125, PETRI_TRANSITIONS=206} [2023-08-25 05:43:08,192 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 16 predicate places. [2023-08-25 05:43:08,192 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 206 transitions, 3808 flow [2023-08-25 05:43:08,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:08,193 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:43:08,193 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:43:08,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-25 05:43:08,193 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 05:43:08,193 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:43:08,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1524074688, now seen corresponding path program 17 times [2023-08-25 05:43:08,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:43:08,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215760706] [2023-08-25 05:43:08,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:43:08,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:43:08,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:43:08,375 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 05:43:08,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:43:08,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215760706] [2023-08-25 05:43:08,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215760706] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:43:08,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:43:08,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-25 05:43:08,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042914114] [2023-08-25 05:43:08,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:43:08,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-25 05:43:08,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:43:08,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-25 05:43:08,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-08-25 05:43:08,378 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 05:43:08,379 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 206 transitions, 3808 flow. Second operand has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:08,379 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:43:08,379 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 05:43:08,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:43:09,302 INFO L124 PetriNetUnfolderBase]: 3242/5847 cut-off events. [2023-08-25 05:43:09,302 INFO L125 PetriNetUnfolderBase]: For 69199/69199 co-relation queries the response was YES. [2023-08-25 05:43:09,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33658 conditions, 5847 events. 3242/5847 cut-off events. For 69199/69199 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 38811 event pairs, 278 based on Foata normal form. 14/5861 useless extension candidates. Maximal degree in co-relation 33624. Up to 1927 conditions per place. [2023-08-25 05:43:09,333 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 147 selfloop transitions, 158 changer transitions 15/320 dead transitions. [2023-08-25 05:43:09,333 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 320 transitions, 5082 flow [2023-08-25 05:43:09,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 05:43:09,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 05:43:09,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2022 transitions. [2023-08-25 05:43:09,337 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4084848484848485 [2023-08-25 05:43:09,337 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2022 transitions. [2023-08-25 05:43:09,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2022 transitions. [2023-08-25 05:43:09,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:43:09,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2022 transitions. [2023-08-25 05:43:09,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 224.66666666666666) internal successors, (2022), 9 states have internal predecessors, (2022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:09,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 550.0) internal successors, (5500), 10 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:09,345 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 550.0) internal successors, (5500), 10 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:09,346 INFO L175 Difference]: Start difference. First operand has 125 places, 206 transitions, 3808 flow. Second operand 9 states and 2022 transitions. [2023-08-25 05:43:09,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 320 transitions, 5082 flow [2023-08-25 05:43:09,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 320 transitions, 4805 flow, removed 17 selfloop flow, removed 5 redundant places. [2023-08-25 05:43:09,467 INFO L231 Difference]: Finished difference. Result has 129 places, 210 transitions, 3942 flow [2023-08-25 05:43:09,467 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=3552, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3942, PETRI_PLACES=129, PETRI_TRANSITIONS=210} [2023-08-25 05:43:09,468 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 20 predicate places. [2023-08-25 05:43:09,468 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 210 transitions, 3942 flow [2023-08-25 05:43:09,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:09,468 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:43:09,468 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:43:09,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-25 05:43:09,468 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 05:43:09,469 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:43:09,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1545057920, now seen corresponding path program 18 times [2023-08-25 05:43:09,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:43:09,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591817954] [2023-08-25 05:43:09,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:43:09,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:43:09,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:43:09,604 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 05:43:09,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:43:09,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591817954] [2023-08-25 05:43:09,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591817954] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:43:09,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:43:09,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-25 05:43:09,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706185264] [2023-08-25 05:43:09,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:43:09,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-25 05:43:09,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:43:09,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-25 05:43:09,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-08-25 05:43:09,607 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 05:43:09,608 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 210 transitions, 3942 flow. Second operand has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:09,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:43:09,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 05:43:09,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:43:10,413 INFO L124 PetriNetUnfolderBase]: 3307/5978 cut-off events. [2023-08-25 05:43:10,413 INFO L125 PetriNetUnfolderBase]: For 75105/75105 co-relation queries the response was YES. [2023-08-25 05:43:10,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34782 conditions, 5978 events. 3307/5978 cut-off events. For 75105/75105 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 39930 event pairs, 316 based on Foata normal form. 18/5996 useless extension candidates. Maximal degree in co-relation 34748. Up to 1938 conditions per place. [2023-08-25 05:43:10,455 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 141 selfloop transitions, 154 changer transitions 28/323 dead transitions. [2023-08-25 05:43:10,455 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 323 transitions, 5235 flow [2023-08-25 05:43:10,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 05:43:10,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 05:43:10,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2024 transitions. [2023-08-25 05:43:10,457 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4088888888888889 [2023-08-25 05:43:10,457 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2024 transitions. [2023-08-25 05:43:10,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2024 transitions. [2023-08-25 05:43:10,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:43:10,458 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2024 transitions. [2023-08-25 05:43:10,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 224.88888888888889) internal successors, (2024), 9 states have internal predecessors, (2024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:10,462 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 550.0) internal successors, (5500), 10 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:10,463 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 550.0) internal successors, (5500), 10 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:10,463 INFO L175 Difference]: Start difference. First operand has 129 places, 210 transitions, 3942 flow. Second operand 9 states and 2024 transitions. [2023-08-25 05:43:10,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 323 transitions, 5235 flow [2023-08-25 05:43:10,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 323 transitions, 4932 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 05:43:10,576 INFO L231 Difference]: Finished difference. Result has 133 places, 207 transitions, 3931 flow [2023-08-25 05:43:10,576 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=3657, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3931, PETRI_PLACES=133, PETRI_TRANSITIONS=207} [2023-08-25 05:43:10,576 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 24 predicate places. [2023-08-25 05:43:10,577 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 207 transitions, 3931 flow [2023-08-25 05:43:10,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:10,577 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:43:10,577 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:43:10,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-25 05:43:10,577 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 05:43:10,577 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:43:10,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1166092776, now seen corresponding path program 19 times [2023-08-25 05:43:10,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:43:10,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497268722] [2023-08-25 05:43:10,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:43:10,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:43:10,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:43:10,733 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 05:43:10,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:43:10,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497268722] [2023-08-25 05:43:10,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497268722] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:43:10,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:43:10,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-25 05:43:10,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100706795] [2023-08-25 05:43:10,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:43:10,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-25 05:43:10,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:43:10,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-25 05:43:10,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-08-25 05:43:10,736 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 05:43:10,737 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 207 transitions, 3931 flow. Second operand has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:10,737 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:43:10,737 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 05:43:10,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:43:11,769 INFO L124 PetriNetUnfolderBase]: 3205/5834 cut-off events. [2023-08-25 05:43:11,770 INFO L125 PetriNetUnfolderBase]: For 73757/73757 co-relation queries the response was YES. [2023-08-25 05:43:11,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34433 conditions, 5834 events. 3205/5834 cut-off events. For 73757/73757 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 39191 event pairs, 304 based on Foata normal form. 14/5848 useless extension candidates. Maximal degree in co-relation 34398. Up to 1966 conditions per place. [2023-08-25 05:43:11,803 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 146 selfloop transitions, 156 changer transitions 24/326 dead transitions. [2023-08-25 05:43:11,803 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 326 transitions, 5215 flow [2023-08-25 05:43:11,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 05:43:11,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 05:43:11,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2029 transitions. [2023-08-25 05:43:11,805 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4098989898989899 [2023-08-25 05:43:11,805 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2029 transitions. [2023-08-25 05:43:11,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2029 transitions. [2023-08-25 05:43:11,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:43:11,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2029 transitions. [2023-08-25 05:43:11,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 225.44444444444446) internal successors, (2029), 9 states have internal predecessors, (2029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:11,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 550.0) internal successors, (5500), 10 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:11,869 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 550.0) internal successors, (5500), 10 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:11,869 INFO L175 Difference]: Start difference. First operand has 133 places, 207 transitions, 3931 flow. Second operand 9 states and 2029 transitions. [2023-08-25 05:43:11,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 326 transitions, 5215 flow [2023-08-25 05:43:11,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 326 transitions, 5082 flow, removed 7 selfloop flow, removed 6 redundant places. [2023-08-25 05:43:11,986 INFO L231 Difference]: Finished difference. Result has 136 places, 207 transitions, 4130 flow [2023-08-25 05:43:11,986 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=3813, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=152, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4130, PETRI_PLACES=136, PETRI_TRANSITIONS=207} [2023-08-25 05:43:11,986 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 27 predicate places. [2023-08-25 05:43:11,986 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 207 transitions, 4130 flow [2023-08-25 05:43:11,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:11,987 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:43:11,987 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:43:11,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-25 05:43:11,987 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 05:43:11,987 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:43:11,987 INFO L85 PathProgramCache]: Analyzing trace with hash 898363850, now seen corresponding path program 20 times [2023-08-25 05:43:11,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:43:11,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780571490] [2023-08-25 05:43:11,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:43:11,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:43:12,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:43:12,146 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 05:43:12,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:43:12,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780571490] [2023-08-25 05:43:12,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780571490] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:43:12,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:43:12,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-25 05:43:12,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495241438] [2023-08-25 05:43:12,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:43:12,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-25 05:43:12,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:43:12,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-25 05:43:12,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-08-25 05:43:12,149 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 05:43:12,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 207 transitions, 4130 flow. Second operand has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:12,150 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:43:12,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 05:43:12,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:43:12,889 INFO L124 PetriNetUnfolderBase]: 2907/5296 cut-off events. [2023-08-25 05:43:12,889 INFO L125 PetriNetUnfolderBase]: For 79645/79645 co-relation queries the response was YES. [2023-08-25 05:43:12,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32020 conditions, 5296 events. 2907/5296 cut-off events. For 79645/79645 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 34760 event pairs, 576 based on Foata normal form. 28/5324 useless extension candidates. Maximal degree in co-relation 31985. Up to 1954 conditions per place. [2023-08-25 05:43:12,917 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 189 selfloop transitions, 116 changer transitions 21/326 dead transitions. [2023-08-25 05:43:12,917 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 326 transitions, 5465 flow [2023-08-25 05:43:12,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 05:43:12,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 05:43:12,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2023 transitions. [2023-08-25 05:43:12,920 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4086868686868687 [2023-08-25 05:43:12,920 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2023 transitions. [2023-08-25 05:43:12,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2023 transitions. [2023-08-25 05:43:12,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:43:12,921 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2023 transitions. [2023-08-25 05:43:12,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 224.77777777777777) internal successors, (2023), 9 states have internal predecessors, (2023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:12,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 550.0) internal successors, (5500), 10 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:12,925 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 550.0) internal successors, (5500), 10 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:12,925 INFO L175 Difference]: Start difference. First operand has 136 places, 207 transitions, 4130 flow. Second operand 9 states and 2023 transitions. [2023-08-25 05:43:12,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 326 transitions, 5465 flow [2023-08-25 05:43:13,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 326 transitions, 5367 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-08-25 05:43:13,031 INFO L231 Difference]: Finished difference. Result has 141 places, 208 transitions, 4267 flow [2023-08-25 05:43:13,031 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=4026, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=109, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4267, PETRI_PLACES=141, PETRI_TRANSITIONS=208} [2023-08-25 05:43:13,031 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 32 predicate places. [2023-08-25 05:43:13,031 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 208 transitions, 4267 flow [2023-08-25 05:43:13,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:13,032 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:43:13,032 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:43:13,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-25 05:43:13,032 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 05:43:13,032 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:43:13,032 INFO L85 PathProgramCache]: Analyzing trace with hash 361431784, now seen corresponding path program 21 times [2023-08-25 05:43:13,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:43:13,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20925405] [2023-08-25 05:43:13,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:43:13,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:43:13,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:43:13,172 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 05:43:13,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:43:13,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20925405] [2023-08-25 05:43:13,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20925405] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:43:13,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:43:13,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 05:43:13,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239463202] [2023-08-25 05:43:13,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:43:13,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 05:43:13,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:43:13,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 05:43:13,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-08-25 05:43:13,175 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 05:43:13,176 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 208 transitions, 4267 flow. Second operand has 9 states, 9 states have (on average 210.77777777777777) internal successors, (1897), 9 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:13,176 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:43:13,176 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 05:43:13,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:43:14,114 INFO L124 PetriNetUnfolderBase]: 2908/5309 cut-off events. [2023-08-25 05:43:14,114 INFO L125 PetriNetUnfolderBase]: For 87598/87598 co-relation queries the response was YES. [2023-08-25 05:43:14,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32488 conditions, 5309 events. 2908/5309 cut-off events. For 87598/87598 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 34989 event pairs, 586 based on Foata normal form. 14/5323 useless extension candidates. Maximal degree in co-relation 32453. Up to 1960 conditions per place. [2023-08-25 05:43:14,143 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 195 selfloop transitions, 114 changer transitions 34/343 dead transitions. [2023-08-25 05:43:14,143 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 343 transitions, 5682 flow [2023-08-25 05:43:14,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 05:43:14,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 05:43:14,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2669 transitions. [2023-08-25 05:43:14,146 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4043939393939394 [2023-08-25 05:43:14,146 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2669 transitions. [2023-08-25 05:43:14,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2669 transitions. [2023-08-25 05:43:14,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:43:14,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2669 transitions. [2023-08-25 05:43:14,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 222.41666666666666) internal successors, (2669), 12 states have internal predecessors, (2669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:14,151 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 550.0) internal successors, (7150), 13 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:14,152 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 550.0) internal successors, (7150), 13 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:14,152 INFO L175 Difference]: Start difference. First operand has 141 places, 208 transitions, 4267 flow. Second operand 12 states and 2669 transitions. [2023-08-25 05:43:14,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 343 transitions, 5682 flow [2023-08-25 05:43:14,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 343 transitions, 5580 flow, removed 8 selfloop flow, removed 3 redundant places. [2023-08-25 05:43:14,271 INFO L231 Difference]: Finished difference. Result has 150 places, 205 transitions, 4312 flow [2023-08-25 05:43:14,271 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=4171, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=109, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4312, PETRI_PLACES=150, PETRI_TRANSITIONS=205} [2023-08-25 05:43:14,271 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 41 predicate places. [2023-08-25 05:43:14,271 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 205 transitions, 4312 flow [2023-08-25 05:43:14,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 210.77777777777777) internal successors, (1897), 9 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:14,272 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:43:14,272 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:43:14,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-25 05:43:14,272 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 05:43:14,272 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:43:14,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1397536810, now seen corresponding path program 22 times [2023-08-25 05:43:14,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:43:14,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829899238] [2023-08-25 05:43:14,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:43:14,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:43:14,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:43:14,427 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 05:43:14,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:43:14,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829899238] [2023-08-25 05:43:14,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829899238] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:43:14,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:43:14,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 05:43:14,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912313206] [2023-08-25 05:43:14,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:43:14,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 05:43:14,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:43:14,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 05:43:14,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-08-25 05:43:14,430 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 05:43:14,431 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 205 transitions, 4312 flow. Second operand has 9 states, 9 states have (on average 210.77777777777777) internal successors, (1897), 9 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:14,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:43:14,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 05:43:14,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:43:14,894 INFO L124 PetriNetUnfolderBase]: 1289/2466 cut-off events. [2023-08-25 05:43:14,894 INFO L125 PetriNetUnfolderBase]: For 32250/32250 co-relation queries the response was YES. [2023-08-25 05:43:14,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15137 conditions, 2466 events. 1289/2466 cut-off events. For 32250/32250 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 14455 event pairs, 382 based on Foata normal form. 180/2646 useless extension candidates. Maximal degree in co-relation 15101. Up to 1670 conditions per place. [2023-08-25 05:43:14,910 INFO L140 encePairwiseOnDemand]: 542/550 looper letters, 98 selfloop transitions, 11 changer transitions 99/208 dead transitions. [2023-08-25 05:43:14,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 208 transitions, 3569 flow [2023-08-25 05:43:14,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 05:43:14,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 05:43:14,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2612 transitions. [2023-08-25 05:43:14,914 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39575757575757575 [2023-08-25 05:43:14,914 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2612 transitions. [2023-08-25 05:43:14,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2612 transitions. [2023-08-25 05:43:14,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:43:14,915 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2612 transitions. [2023-08-25 05:43:14,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 217.66666666666666) internal successors, (2612), 12 states have internal predecessors, (2612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:14,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 550.0) internal successors, (7150), 13 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:14,922 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 550.0) internal successors, (7150), 13 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:14,922 INFO L175 Difference]: Start difference. First operand has 150 places, 205 transitions, 4312 flow. Second operand 12 states and 2612 transitions. [2023-08-25 05:43:14,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 208 transitions, 3569 flow [2023-08-25 05:43:14,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 208 transitions, 3416 flow, removed 16 selfloop flow, removed 11 redundant places. [2023-08-25 05:43:14,967 INFO L231 Difference]: Finished difference. Result has 153 places, 94 transitions, 1258 flow [2023-08-25 05:43:14,967 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=2604, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1258, PETRI_PLACES=153, PETRI_TRANSITIONS=94} [2023-08-25 05:43:14,968 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 44 predicate places. [2023-08-25 05:43:14,968 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 94 transitions, 1258 flow [2023-08-25 05:43:14,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 210.77777777777777) internal successors, (1897), 9 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:14,968 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:43:14,968 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:43:14,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-25 05:43:14,968 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 05:43:14,969 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:43:14,969 INFO L85 PathProgramCache]: Analyzing trace with hash 24109932, now seen corresponding path program 23 times [2023-08-25 05:43:14,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:43:14,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895649172] [2023-08-25 05:43:14,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:43:14,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:43:14,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:43:15,099 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 05:43:15,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:43:15,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895649172] [2023-08-25 05:43:15,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895649172] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:43:15,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:43:15,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 05:43:15,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951497777] [2023-08-25 05:43:15,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:43:15,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 05:43:15,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:43:15,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 05:43:15,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-08-25 05:43:15,101 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 05:43:15,102 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 94 transitions, 1258 flow. Second operand has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:15,102 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:43:15,102 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 05:43:15,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:43:15,300 INFO L124 PetriNetUnfolderBase]: 235/492 cut-off events. [2023-08-25 05:43:15,300 INFO L125 PetriNetUnfolderBase]: For 6048/6048 co-relation queries the response was YES. [2023-08-25 05:43:15,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2944 conditions, 492 events. 235/492 cut-off events. For 6048/6048 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2069 event pairs, 6 based on Foata normal form. 78/570 useless extension candidates. Maximal degree in co-relation 2907. Up to 178 conditions per place. [2023-08-25 05:43:15,303 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 47 selfloop transitions, 15 changer transitions 29/91 dead transitions. [2023-08-25 05:43:15,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 91 transitions, 1082 flow [2023-08-25 05:43:15,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 05:43:15,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 05:43:15,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1526 transitions. [2023-08-25 05:43:15,305 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39636363636363636 [2023-08-25 05:43:15,305 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1526 transitions. [2023-08-25 05:43:15,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1526 transitions. [2023-08-25 05:43:15,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:43:15,306 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1526 transitions. [2023-08-25 05:43:15,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 218.0) internal successors, (1526), 7 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:15,310 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 550.0) internal successors, (4400), 8 states have internal predecessors, (4400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:15,310 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 550.0) internal successors, (4400), 8 states have internal predecessors, (4400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:15,310 INFO L175 Difference]: Start difference. First operand has 153 places, 94 transitions, 1258 flow. Second operand 7 states and 1526 transitions. [2023-08-25 05:43:15,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 91 transitions, 1082 flow [2023-08-25 05:43:15,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 91 transitions, 751 flow, removed 45 selfloop flow, removed 52 redundant places. [2023-08-25 05:43:15,319 INFO L231 Difference]: Finished difference. Result has 76 places, 42 transitions, 277 flow [2023-08-25 05:43:15,319 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=444, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=277, PETRI_PLACES=76, PETRI_TRANSITIONS=42} [2023-08-25 05:43:15,319 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -33 predicate places. [2023-08-25 05:43:15,320 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 42 transitions, 277 flow [2023-08-25 05:43:15,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:15,320 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:43:15,320 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:43:15,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-25 05:43:15,320 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-25 05:43:15,320 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:43:15,321 INFO L85 PathProgramCache]: Analyzing trace with hash 936710512, now seen corresponding path program 24 times [2023-08-25 05:43:15,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:43:15,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922968972] [2023-08-25 05:43:15,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:43:15,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:43:15,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:43:15,459 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 05:43:15,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:43:15,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922968972] [2023-08-25 05:43:15,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922968972] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:43:15,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:43:15,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-25 05:43:15,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79144690] [2023-08-25 05:43:15,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:43:15,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-25 05:43:15,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:43:15,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-25 05:43:15,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-08-25 05:43:15,462 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-25 05:43:15,463 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 42 transitions, 277 flow. Second operand has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:15,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:43:15,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-25 05:43:15,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:43:15,537 INFO L124 PetriNetUnfolderBase]: 55/130 cut-off events. [2023-08-25 05:43:15,537 INFO L125 PetriNetUnfolderBase]: For 592/592 co-relation queries the response was YES. [2023-08-25 05:43:15,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 603 conditions, 130 events. 55/130 cut-off events. For 592/592 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 357 event pairs, 0 based on Foata normal form. 6/136 useless extension candidates. Maximal degree in co-relation 585. Up to 48 conditions per place. [2023-08-25 05:43:15,538 INFO L140 encePairwiseOnDemand]: 542/550 looper letters, 0 selfloop transitions, 0 changer transitions 44/44 dead transitions. [2023-08-25 05:43:15,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 44 transitions, 347 flow [2023-08-25 05:43:15,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 05:43:15,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 05:43:15,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1699 transitions. [2023-08-25 05:43:15,540 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3861363636363636 [2023-08-25 05:43:15,540 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1699 transitions. [2023-08-25 05:43:15,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1699 transitions. [2023-08-25 05:43:15,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:43:15,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1699 transitions. [2023-08-25 05:43:15,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 212.375) internal successors, (1699), 8 states have internal predecessors, (1699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:15,545 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 550.0) internal successors, (4950), 9 states have internal predecessors, (4950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:15,545 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 550.0) internal successors, (4950), 9 states have internal predecessors, (4950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:15,545 INFO L175 Difference]: Start difference. First operand has 76 places, 42 transitions, 277 flow. Second operand 8 states and 1699 transitions. [2023-08-25 05:43:15,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 44 transitions, 347 flow [2023-08-25 05:43:15,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 44 transitions, 238 flow, removed 12 selfloop flow, removed 23 redundant places. [2023-08-25 05:43:15,547 INFO L231 Difference]: Finished difference. Result has 43 places, 0 transitions, 0 flow [2023-08-25 05:43:15,547 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=43, PETRI_TRANSITIONS=0} [2023-08-25 05:43:15,547 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -66 predicate places. [2023-08-25 05:43:15,547 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 0 transitions, 0 flow [2023-08-25 05:43:15,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:15,550 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (109 of 110 remaining) [2023-08-25 05:43:15,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (108 of 110 remaining) [2023-08-25 05:43:15,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (107 of 110 remaining) [2023-08-25 05:43:15,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (106 of 110 remaining) [2023-08-25 05:43:15,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (105 of 110 remaining) [2023-08-25 05:43:15,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (104 of 110 remaining) [2023-08-25 05:43:15,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (103 of 110 remaining) [2023-08-25 05:43:15,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (102 of 110 remaining) [2023-08-25 05:43:15,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (101 of 110 remaining) [2023-08-25 05:43:15,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (100 of 110 remaining) [2023-08-25 05:43:15,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (99 of 110 remaining) [2023-08-25 05:43:15,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (98 of 110 remaining) [2023-08-25 05:43:15,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (97 of 110 remaining) [2023-08-25 05:43:15,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (96 of 110 remaining) [2023-08-25 05:43:15,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (95 of 110 remaining) [2023-08-25 05:43:15,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (94 of 110 remaining) [2023-08-25 05:43:15,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (93 of 110 remaining) [2023-08-25 05:43:15,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (92 of 110 remaining) [2023-08-25 05:43:15,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (91 of 110 remaining) [2023-08-25 05:43:15,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (90 of 110 remaining) [2023-08-25 05:43:15,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (89 of 110 remaining) [2023-08-25 05:43:15,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (88 of 110 remaining) [2023-08-25 05:43:15,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (87 of 110 remaining) [2023-08-25 05:43:15,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (86 of 110 remaining) [2023-08-25 05:43:15,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (85 of 110 remaining) [2023-08-25 05:43:15,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (84 of 110 remaining) [2023-08-25 05:43:15,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (83 of 110 remaining) [2023-08-25 05:43:15,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (82 of 110 remaining) [2023-08-25 05:43:15,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (81 of 110 remaining) [2023-08-25 05:43:15,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (80 of 110 remaining) [2023-08-25 05:43:15,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONDATA_RACE (79 of 110 remaining) [2023-08-25 05:43:15,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONDATA_RACE (78 of 110 remaining) [2023-08-25 05:43:15,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (77 of 110 remaining) [2023-08-25 05:43:15,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (76 of 110 remaining) [2023-08-25 05:43:15,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (75 of 110 remaining) [2023-08-25 05:43:15,559 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (74 of 110 remaining) [2023-08-25 05:43:15,559 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (73 of 110 remaining) [2023-08-25 05:43:15,559 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (72 of 110 remaining) [2023-08-25 05:43:15,560 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (71 of 110 remaining) [2023-08-25 05:43:15,560 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (70 of 110 remaining) [2023-08-25 05:43:15,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (69 of 110 remaining) [2023-08-25 05:43:15,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (68 of 110 remaining) [2023-08-25 05:43:15,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (67 of 110 remaining) [2023-08-25 05:43:15,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (66 of 110 remaining) [2023-08-25 05:43:15,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (65 of 110 remaining) [2023-08-25 05:43:15,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (64 of 110 remaining) [2023-08-25 05:43:15,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (63 of 110 remaining) [2023-08-25 05:43:15,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (62 of 110 remaining) [2023-08-25 05:43:15,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (61 of 110 remaining) [2023-08-25 05:43:15,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (60 of 110 remaining) [2023-08-25 05:43:15,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (59 of 110 remaining) [2023-08-25 05:43:15,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONASSERT (58 of 110 remaining) [2023-08-25 05:43:15,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (57 of 110 remaining) [2023-08-25 05:43:15,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (56 of 110 remaining) [2023-08-25 05:43:15,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (55 of 110 remaining) [2023-08-25 05:43:15,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (54 of 110 remaining) [2023-08-25 05:43:15,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONDATA_RACE (53 of 110 remaining) [2023-08-25 05:43:15,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONDATA_RACE (52 of 110 remaining) [2023-08-25 05:43:15,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONDATA_RACE (51 of 110 remaining) [2023-08-25 05:43:15,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONDATA_RACE (50 of 110 remaining) [2023-08-25 05:43:15,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err4ASSERT_VIOLATIONDATA_RACE (49 of 110 remaining) [2023-08-25 05:43:15,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err5ASSERT_VIOLATIONDATA_RACE (48 of 110 remaining) [2023-08-25 05:43:15,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err6ASSERT_VIOLATIONDATA_RACE (47 of 110 remaining) [2023-08-25 05:43:15,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err7ASSERT_VIOLATIONDATA_RACE (46 of 110 remaining) [2023-08-25 05:43:15,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err8ASSERT_VIOLATIONDATA_RACE (45 of 110 remaining) [2023-08-25 05:43:15,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err9ASSERT_VIOLATIONDATA_RACE (44 of 110 remaining) [2023-08-25 05:43:15,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err10ASSERT_VIOLATIONDATA_RACE (43 of 110 remaining) [2023-08-25 05:43:15,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (42 of 110 remaining) [2023-08-25 05:43:15,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (41 of 110 remaining) [2023-08-25 05:43:15,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (40 of 110 remaining) [2023-08-25 05:43:15,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (39 of 110 remaining) [2023-08-25 05:43:15,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (38 of 110 remaining) [2023-08-25 05:43:15,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (37 of 110 remaining) [2023-08-25 05:43:15,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (36 of 110 remaining) [2023-08-25 05:43:15,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (35 of 110 remaining) [2023-08-25 05:43:15,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (34 of 110 remaining) [2023-08-25 05:43:15,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (33 of 110 remaining) [2023-08-25 05:43:15,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (32 of 110 remaining) [2023-08-25 05:43:15,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (31 of 110 remaining) [2023-08-25 05:43:15,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (30 of 110 remaining) [2023-08-25 05:43:15,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (29 of 110 remaining) [2023-08-25 05:43:15,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (28 of 110 remaining) [2023-08-25 05:43:15,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (27 of 110 remaining) [2023-08-25 05:43:15,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (26 of 110 remaining) [2023-08-25 05:43:15,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (25 of 110 remaining) [2023-08-25 05:43:15,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (24 of 110 remaining) [2023-08-25 05:43:15,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (23 of 110 remaining) [2023-08-25 05:43:15,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (22 of 110 remaining) [2023-08-25 05:43:15,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (21 of 110 remaining) [2023-08-25 05:43:15,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (20 of 110 remaining) [2023-08-25 05:43:15,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (19 of 110 remaining) [2023-08-25 05:43:15,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (18 of 110 remaining) [2023-08-25 05:43:15,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (17 of 110 remaining) [2023-08-25 05:43:15,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (16 of 110 remaining) [2023-08-25 05:43:15,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (15 of 110 remaining) [2023-08-25 05:43:15,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (14 of 110 remaining) [2023-08-25 05:43:15,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (13 of 110 remaining) [2023-08-25 05:43:15,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONDATA_RACE (12 of 110 remaining) [2023-08-25 05:43:15,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONDATA_RACE (11 of 110 remaining) [2023-08-25 05:43:15,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONDATA_RACE (10 of 110 remaining) [2023-08-25 05:43:15,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONDATA_RACE (9 of 110 remaining) [2023-08-25 05:43:15,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONDATA_RACE (8 of 110 remaining) [2023-08-25 05:43:15,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONDATA_RACE (7 of 110 remaining) [2023-08-25 05:43:15,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err4ASSERT_VIOLATIONDATA_RACE (6 of 110 remaining) [2023-08-25 05:43:15,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err5ASSERT_VIOLATIONDATA_RACE (5 of 110 remaining) [2023-08-25 05:43:15,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err6ASSERT_VIOLATIONDATA_RACE (4 of 110 remaining) [2023-08-25 05:43:15,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err7ASSERT_VIOLATIONDATA_RACE (3 of 110 remaining) [2023-08-25 05:43:15,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err8ASSERT_VIOLATIONDATA_RACE (2 of 110 remaining) [2023-08-25 05:43:15,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err9ASSERT_VIOLATIONDATA_RACE (1 of 110 remaining) [2023-08-25 05:43:15,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err10ASSERT_VIOLATIONDATA_RACE (0 of 110 remaining) [2023-08-25 05:43:15,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-25 05:43:15,568 INFO L445 BasicCegarLoop]: Path program histogram: [24, 1] [2023-08-25 05:43:15,573 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 05:43:15,573 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 05:43:15,576 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 05:43:15 BasicIcfg [2023-08-25 05:43:15,576 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 05:43:15,577 INFO L158 Benchmark]: Toolchain (without parser) took 41090.02ms. Allocated memory was 356.5MB in the beginning and 4.9GB in the end (delta: 4.5GB). Free memory was 332.8MB in the beginning and 2.9GB in the end (delta: -2.6GB). Peak memory consumption was 2.0GB. Max. memory is 16.0GB. [2023-08-25 05:43:15,577 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 356.5MB. Free memory is still 333.0MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 05:43:15,577 INFO L158 Benchmark]: CACSL2BoogieTranslator took 296.80ms. Allocated memory is still 356.5MB. Free memory was 332.5MB in the beginning and 320.3MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-25 05:43:15,577 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.23ms. Allocated memory is still 356.5MB. Free memory was 320.3MB in the beginning and 317.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-25 05:43:15,578 INFO L158 Benchmark]: Boogie Preprocessor took 38.76ms. Allocated memory is still 356.5MB. Free memory was 317.2MB in the beginning and 315.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 05:43:15,578 INFO L158 Benchmark]: RCFGBuilder took 991.25ms. Allocated memory is still 356.5MB. Free memory was 315.1MB in the beginning and 308.2MB in the end (delta: 6.9MB). Peak memory consumption was 37.9MB. Max. memory is 16.0GB. [2023-08-25 05:43:15,578 INFO L158 Benchmark]: TraceAbstraction took 39713.55ms. Allocated memory was 356.5MB in the beginning and 4.9GB in the end (delta: 4.5GB). Free memory was 307.4MB in the beginning and 2.9GB in the end (delta: -2.6GB). Peak memory consumption was 1.9GB. Max. memory is 16.0GB. [2023-08-25 05:43:15,582 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 356.5MB. Free memory is still 333.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 296.80ms. Allocated memory is still 356.5MB. Free memory was 332.5MB in the beginning and 320.3MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 43.23ms. Allocated memory is still 356.5MB. Free memory was 320.3MB in the beginning and 317.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 38.76ms. Allocated memory is still 356.5MB. Free memory was 317.2MB in the beginning and 315.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 991.25ms. Allocated memory is still 356.5MB. Free memory was 315.1MB in the beginning and 308.2MB in the end (delta: 6.9MB). Peak memory consumption was 37.9MB. Max. memory is 16.0GB. * TraceAbstraction took 39713.55ms. Allocated memory was 356.5MB in the beginning and 4.9GB in the end (delta: 4.5GB). Free memory was 307.4MB in the beginning and 2.9GB in the end (delta: -2.6GB). Peak memory consumption was 1.9GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.3s, 278 PlacesBefore, 109 PlacesAfterwards, 270 TransitionsBefore, 96 TransitionsAfterwards, 7752 CoEnabledTransitionPairs, 9 FixpointIterations, 181 TrivialSequentialCompositions, 61 ConcurrentSequentialCompositions, 16 TrivialYvCompositions, 0 ConcurrentYvCompositions, 5 ChoiceCompositions, 263 TotalNumberOfCompositions, 50408 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 15258, independent: 14504, independent conditional: 0, independent unconditional: 14504, dependent: 754, dependent conditional: 0, dependent unconditional: 754, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3161, independent: 3116, independent conditional: 0, independent unconditional: 3116, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 15258, independent: 11388, independent conditional: 0, independent unconditional: 11388, dependent: 709, dependent conditional: 0, dependent unconditional: 709, unknown: 3161, unknown conditional: 0, unknown unconditional: 3161] , Statistics on independence cache: Total cache size (in pairs): 833, Positive cache size: 795, Positive conditional cache size: 0, Positive unconditional cache size: 795, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 95]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 95]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 124]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 125]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 126]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 127]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 128]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 129]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 130]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 131]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 134]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 134]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 134]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 134]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 134]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 134]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 140]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 141]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 142]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 143]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 145]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 21]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 108]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 108]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 111]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 111]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 111]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 114]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 114]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 359 locations, 110 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 39.6s, OverallIterations: 25, TraceHistogramMax: 1, PathProgramHistogramMax: 24, EmptinessCheckTime: 0.0s, AutomataDifference: 26.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1689 SdHoareTripleChecker+Valid, 5.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1689 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 4.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 410 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9122 IncrementalHoareTripleChecker+Invalid, 9532 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 410 mSolverCounterUnsat, 0 mSDtfsCounter, 9122 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 230 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4312occurred in iteration=22, InterpolantAutomatonStates: 197, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 817 NumberOfCodeBlocks, 817 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 792 ConstructedInterpolants, 0 QuantifiedInterpolants, 2188 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 25 InterpolantComputations, 25 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 63 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 05:43:15,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...