./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/weaver/loop-tiling-eq.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/loop-tiling-eq.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2c579ed20cf5b381709dcc4ef9fbcf839f80c68ac017a29b947b11bd3a57dd56 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 07:00:26,600 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:00:26,653 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-09 07:00:26,656 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:00:26,656 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:00:26,678 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:00:26,679 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:00:26,680 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:00:26,680 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:00:26,682 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:00:26,682 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 07:00:26,682 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 07:00:26,683 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 07:00:26,685 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:00:26,685 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:00:26,685 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:00:26,686 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:00:26,686 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:00:26,686 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:00:26,686 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:00:26,686 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:00:26,687 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:00:26,687 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-09 07:00:26,688 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:00:26,688 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 07:00:26,688 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:00:26,688 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:00:26,688 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:00:26,688 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:00:26,689 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 07:00:26,689 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:00:26,689 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 07:00:26,690 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:00:26,690 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:00:26,690 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:00:26,690 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 07:00:26,690 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:00:26,691 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:00:26,691 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 07:00:26,691 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 07:00:26,691 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:00:26,691 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c579ed20cf5b381709dcc4ef9fbcf839f80c68ac017a29b947b11bd3a57dd56 [2024-11-09 07:00:26,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:00:26,895 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:00:26,897 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:00:26,898 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:00:26,899 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:00:26,899 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/loop-tiling-eq.wvr.c [2024-11-09 07:00:28,117 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:00:28,249 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:00:28,250 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/loop-tiling-eq.wvr.c [2024-11-09 07:00:28,256 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84f8b6537/833901a5a39b44309fd23948f6c745d1/FLAGee8322b92 [2024-11-09 07:00:28,659 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84f8b6537/833901a5a39b44309fd23948f6c745d1 [2024-11-09 07:00:28,661 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:00:28,662 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:00:28,665 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:00:28,665 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:00:28,669 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:00:28,670 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:00:28" (1/1) ... [2024-11-09 07:00:28,671 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19f9280d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:28, skipping insertion in model container [2024-11-09 07:00:28,671 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:00:28" (1/1) ... [2024-11-09 07:00:28,690 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:00:28,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:00:28,880 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:00:28,918 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:00:28,935 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:00:28,936 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:28 WrapperNode [2024-11-09 07:00:28,936 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:00:28,937 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:00:28,937 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:00:28,937 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:00:28,943 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:28" (1/1) ... [2024-11-09 07:00:28,957 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:28" (1/1) ... [2024-11-09 07:00:29,006 INFO L138 Inliner]: procedures = 24, calls = 32, calls flagged for inlining = 14, calls inlined = 18, statements flattened = 331 [2024-11-09 07:00:29,007 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:00:29,007 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:00:29,007 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:00:29,007 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:00:29,016 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:28" (1/1) ... [2024-11-09 07:00:29,016 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:28" (1/1) ... [2024-11-09 07:00:29,020 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:28" (1/1) ... [2024-11-09 07:00:29,020 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:28" (1/1) ... [2024-11-09 07:00:29,047 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:28" (1/1) ... [2024-11-09 07:00:29,055 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:28" (1/1) ... [2024-11-09 07:00:29,060 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:28" (1/1) ... [2024-11-09 07:00:29,062 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:28" (1/1) ... [2024-11-09 07:00:29,065 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:00:29,070 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:00:29,070 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:00:29,070 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:00:29,071 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:28" (1/1) ... [2024-11-09 07:00:29,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 07:00:29,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 07:00:29,098 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 07:00:29,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 07:00:29,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 07:00:29,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:00:29,142 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-09 07:00:29,142 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-09 07:00:29,142 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-09 07:00:29,143 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-09 07:00:29,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:00:29,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 07:00:29,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 07:00:29,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 07:00:29,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:00:29,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:00:29,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 07:00:29,145 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 07:00:29,246 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:00:29,248 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:00:29,824 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 07:00:29,824 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:00:29,849 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:00:29,849 INFO L316 CfgBuilder]: Removed 7 assume(true) statements. [2024-11-09 07:00:29,850 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:00:29 BoogieIcfgContainer [2024-11-09 07:00:29,850 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:00:29,851 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:00:29,851 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:00:29,854 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:00:29,854 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:00:28" (1/3) ... [2024-11-09 07:00:29,854 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@141b5e84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:00:29, skipping insertion in model container [2024-11-09 07:00:29,855 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:28" (2/3) ... [2024-11-09 07:00:29,855 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@141b5e84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:00:29, skipping insertion in model container [2024-11-09 07:00:29,855 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:00:29" (3/3) ... [2024-11-09 07:00:29,858 INFO L112 eAbstractionObserver]: Analyzing ICFG loop-tiling-eq.wvr.c [2024-11-09 07:00:29,870 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:00:29,870 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 55 error locations. [2024-11-09 07:00:29,871 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 07:00:29,938 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-09 07:00:29,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 511 places, 534 transitions, 1082 flow [2024-11-09 07:00:30,129 INFO L124 PetriNetUnfolderBase]: 30/532 cut-off events. [2024-11-09 07:00:30,129 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-09 07:00:30,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 541 conditions, 532 events. 30/532 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 853 event pairs, 0 based on Foata normal form. 0/447 useless extension candidates. Maximal degree in co-relation 350. Up to 2 conditions per place. [2024-11-09 07:00:30,139 INFO L82 GeneralOperation]: Start removeDead. Operand has 511 places, 534 transitions, 1082 flow [2024-11-09 07:00:30,147 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 490 places, 512 transitions, 1036 flow [2024-11-09 07:00:30,154 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:00:30,159 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@59a3bd1b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:00:30,159 INFO L334 AbstractCegarLoop]: Starting to check reachability of 70 error locations. [2024-11-09 07:00:30,162 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:00:30,162 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2024-11-09 07:00:30,162 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:00:30,162 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:00:30,162 INFO L204 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] [2024-11-09 07:00:30,163 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-09 07:00:30,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:30,167 INFO L85 PathProgramCache]: Analyzing trace with hash 770404757, now seen corresponding path program 1 times [2024-11-09 07:00:30,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:00:30,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437982703] [2024-11-09 07:00:30,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:30,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:00:30,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:30,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:00:30,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:00:30,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437982703] [2024-11-09 07:00:30,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437982703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:00:30,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:00:30,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:00:30,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192409524] [2024-11-09 07:00:30,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:00:30,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:00:30,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:00:30,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:00:30,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:00:30,483 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 495 out of 534 [2024-11-09 07:00:30,488 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 490 places, 512 transitions, 1036 flow. Second operand has 3 states, 3 states have (on average 496.3333333333333) internal successors, (1489), 3 states have internal predecessors, (1489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:30,489 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:00:30,489 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 495 of 534 [2024-11-09 07:00:30,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:00:30,562 INFO L124 PetriNetUnfolderBase]: 13/497 cut-off events. [2024-11-09 07:00:30,563 INFO L125 PetriNetUnfolderBase]: For 13/14 co-relation queries the response was YES. [2024-11-09 07:00:30,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 530 conditions, 497 events. 13/497 cut-off events. For 13/14 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 855 event pairs, 2 based on Foata normal form. 21/442 useless extension candidates. Maximal degree in co-relation 344. Up to 20 conditions per place. [2024-11-09 07:00:30,569 INFO L140 encePairwiseOnDemand]: 513/534 looper letters, 15 selfloop transitions, 2 changer transitions 11/493 dead transitions. [2024-11-09 07:00:30,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 491 places, 493 transitions, 1032 flow [2024-11-09 07:00:30,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:00:30,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:00:30,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1521 transitions. [2024-11-09 07:00:30,592 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.949438202247191 [2024-11-09 07:00:30,593 INFO L175 Difference]: Start difference. First operand has 490 places, 512 transitions, 1036 flow. Second operand 3 states and 1521 transitions. [2024-11-09 07:00:30,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 491 places, 493 transitions, 1032 flow [2024-11-09 07:00:30,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 487 places, 493 transitions, 1024 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-09 07:00:30,613 INFO L231 Difference]: Finished difference. Result has 487 places, 482 transitions, 972 flow [2024-11-09 07:00:30,615 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=990, PETRI_DIFFERENCE_MINUEND_PLACES=485, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=493, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=491, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=972, PETRI_PLACES=487, PETRI_TRANSITIONS=482} [2024-11-09 07:00:30,618 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -3 predicate places. [2024-11-09 07:00:30,619 INFO L471 AbstractCegarLoop]: Abstraction has has 487 places, 482 transitions, 972 flow [2024-11-09 07:00:30,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 496.3333333333333) internal successors, (1489), 3 states have internal predecessors, (1489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:30,621 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:00:30,621 INFO L204 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] [2024-11-09 07:00:30,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:00:30,622 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-09 07:00:30,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:30,623 INFO L85 PathProgramCache]: Analyzing trace with hash -2105081766, now seen corresponding path program 1 times [2024-11-09 07:00:30,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:00:30,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689408305] [2024-11-09 07:00:30,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:30,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:00:30,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:30,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:00:30,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:00:30,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689408305] [2024-11-09 07:00:30,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689408305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:00:30,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:00:30,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:00:30,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629482926] [2024-11-09 07:00:30,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:00:30,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:00:30,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:00:30,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:00:30,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:00:30,727 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 485 out of 534 [2024-11-09 07:00:30,728 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 487 places, 482 transitions, 972 flow. Second operand has 3 states, 3 states have (on average 486.0) internal successors, (1458), 3 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:30,729 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:00:30,729 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 485 of 534 [2024-11-09 07:00:30,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:00:30,817 INFO L124 PetriNetUnfolderBase]: 18/533 cut-off events. [2024-11-09 07:00:30,817 INFO L125 PetriNetUnfolderBase]: For 7/8 co-relation queries the response was YES. [2024-11-09 07:00:30,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 571 conditions, 533 events. 18/533 cut-off events. For 7/8 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1151 event pairs, 4 based on Foata normal form. 0/469 useless extension candidates. Maximal degree in co-relation 539. Up to 30 conditions per place. [2024-11-09 07:00:30,819 INFO L140 encePairwiseOnDemand]: 525/534 looper letters, 20 selfloop transitions, 1 changer transitions 0/474 dead transitions. [2024-11-09 07:00:30,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 470 places, 474 transitions, 998 flow [2024-11-09 07:00:30,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:00:30,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:00:30,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1484 transitions. [2024-11-09 07:00:30,824 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9263420724094882 [2024-11-09 07:00:30,824 INFO L175 Difference]: Start difference. First operand has 487 places, 482 transitions, 972 flow. Second operand 3 states and 1484 transitions. [2024-11-09 07:00:30,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 470 places, 474 transitions, 998 flow [2024-11-09 07:00:30,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 474 transitions, 994 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:00:30,830 INFO L231 Difference]: Finished difference. Result has 468 places, 474 transitions, 954 flow [2024-11-09 07:00:30,831 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=952, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=474, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=473, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=954, PETRI_PLACES=468, PETRI_TRANSITIONS=474} [2024-11-09 07:00:30,831 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -22 predicate places. [2024-11-09 07:00:30,831 INFO L471 AbstractCegarLoop]: Abstraction has has 468 places, 474 transitions, 954 flow [2024-11-09 07:00:30,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 486.0) internal successors, (1458), 3 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:30,833 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:00:30,833 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:00:30,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 07:00:30,834 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-09 07:00:30,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:30,834 INFO L85 PathProgramCache]: Analyzing trace with hash -705021752, now seen corresponding path program 1 times [2024-11-09 07:00:30,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:00:30,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499487048] [2024-11-09 07:00:30,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:30,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:00:30,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:30,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:00:30,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:00:30,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499487048] [2024-11-09 07:00:30,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499487048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:00:30,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:00:30,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:00:30,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312144298] [2024-11-09 07:00:30,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:00:30,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:00:30,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:00:30,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:00:30,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:00:30,927 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 494 out of 534 [2024-11-09 07:00:30,929 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 468 places, 474 transitions, 954 flow. Second operand has 3 states, 3 states have (on average 495.3333333333333) internal successors, (1486), 3 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:30,929 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:00:30,929 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 494 of 534 [2024-11-09 07:00:30,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:00:31,003 INFO L124 PetriNetUnfolderBase]: 12/475 cut-off events. [2024-11-09 07:00:31,003 INFO L125 PetriNetUnfolderBase]: For 2/3 co-relation queries the response was YES. [2024-11-09 07:00:31,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 501 conditions, 475 events. 12/475 cut-off events. For 2/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 747 event pairs, 1 based on Foata normal form. 0/420 useless extension candidates. Maximal degree in co-relation 469. Up to 19 conditions per place. [2024-11-09 07:00:31,006 INFO L140 encePairwiseOnDemand]: 531/534 looper letters, 16 selfloop transitions, 2 changer transitions 0/473 dead transitions. [2024-11-09 07:00:31,007 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 473 transitions, 988 flow [2024-11-09 07:00:31,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:00:31,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:00:31,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1501 transitions. [2024-11-09 07:00:31,009 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9369538077403246 [2024-11-09 07:00:31,009 INFO L175 Difference]: Start difference. First operand has 468 places, 474 transitions, 954 flow. Second operand 3 states and 1501 transitions. [2024-11-09 07:00:31,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 473 transitions, 988 flow [2024-11-09 07:00:31,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 473 transitions, 987 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:00:31,016 INFO L231 Difference]: Finished difference. Result has 468 places, 473 transitions, 955 flow [2024-11-09 07:00:31,017 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=951, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=473, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=471, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=955, PETRI_PLACES=468, PETRI_TRANSITIONS=473} [2024-11-09 07:00:31,018 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -22 predicate places. [2024-11-09 07:00:31,018 INFO L471 AbstractCegarLoop]: Abstraction has has 468 places, 473 transitions, 955 flow [2024-11-09 07:00:31,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 495.3333333333333) internal successors, (1486), 3 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:31,019 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:00:31,020 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:00:31,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 07:00:31,020 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-09 07:00:31,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:31,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1793195277, now seen corresponding path program 1 times [2024-11-09 07:00:31,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:00:31,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866343556] [2024-11-09 07:00:31,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:31,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:00:31,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:31,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:00:31,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:00:31,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866343556] [2024-11-09 07:00:31,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866343556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:00:31,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:00:31,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:00:31,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471043732] [2024-11-09 07:00:31,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:00:31,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:00:31,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:00:31,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:00:31,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:00:31,131 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 482 out of 534 [2024-11-09 07:00:31,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 468 places, 473 transitions, 955 flow. Second operand has 3 states, 3 states have (on average 483.0) internal successors, (1449), 3 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:31,133 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:00:31,133 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 482 of 534 [2024-11-09 07:00:31,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:00:31,181 INFO L124 PetriNetUnfolderBase]: 15/519 cut-off events. [2024-11-09 07:00:31,182 INFO L125 PetriNetUnfolderBase]: For 5/6 co-relation queries the response was YES. [2024-11-09 07:00:31,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 555 conditions, 519 events. 15/519 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1042 event pairs, 2 based on Foata normal form. 0/466 useless extension candidates. Maximal degree in co-relation 524. Up to 27 conditions per place. [2024-11-09 07:00:31,185 INFO L140 encePairwiseOnDemand]: 524/534 looper letters, 22 selfloop transitions, 1 changer transitions 0/464 dead transitions. [2024-11-09 07:00:31,185 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 464 transitions, 983 flow [2024-11-09 07:00:31,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:00:31,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:00:31,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1478 transitions. [2024-11-09 07:00:31,187 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9225967540574282 [2024-11-09 07:00:31,187 INFO L175 Difference]: Start difference. First operand has 468 places, 473 transitions, 955 flow. Second operand 3 states and 1478 transitions. [2024-11-09 07:00:31,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 461 places, 464 transitions, 983 flow [2024-11-09 07:00:31,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 464 transitions, 979 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:00:31,193 INFO L231 Difference]: Finished difference. Result has 459 places, 464 transitions, 935 flow [2024-11-09 07:00:31,193 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=933, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=464, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=463, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=935, PETRI_PLACES=459, PETRI_TRANSITIONS=464} [2024-11-09 07:00:31,195 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -31 predicate places. [2024-11-09 07:00:31,195 INFO L471 AbstractCegarLoop]: Abstraction has has 459 places, 464 transitions, 935 flow [2024-11-09 07:00:31,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 483.0) internal successors, (1449), 3 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:31,196 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:00:31,197 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:00:31,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 07:00:31,197 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-09 07:00:31,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:31,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1687939895, now seen corresponding path program 1 times [2024-11-09 07:00:31,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:00:31,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928569544] [2024-11-09 07:00:31,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:31,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:00:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:31,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:00:31,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:00:31,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928569544] [2024-11-09 07:00:31,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928569544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:00:31,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:00:31,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:00:31,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437780016] [2024-11-09 07:00:31,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:00:31,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:00:31,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:00:31,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:00:31,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:00:31,281 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 500 out of 534 [2024-11-09 07:00:31,283 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 464 transitions, 935 flow. Second operand has 3 states, 3 states have (on average 501.3333333333333) internal successors, (1504), 3 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:31,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:00:31,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 500 of 534 [2024-11-09 07:00:31,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:00:31,324 INFO L124 PetriNetUnfolderBase]: 13/499 cut-off events. [2024-11-09 07:00:31,324 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 07:00:31,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 522 conditions, 499 events. 13/499 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 937 event pairs, 1 based on Foata normal form. 0/447 useless extension candidates. Maximal degree in co-relation 490. Up to 14 conditions per place. [2024-11-09 07:00:31,326 INFO L140 encePairwiseOnDemand]: 531/534 looper letters, 10 selfloop transitions, 2 changer transitions 0/463 dead transitions. [2024-11-09 07:00:31,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 463 transitions, 957 flow [2024-11-09 07:00:31,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:00:31,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:00:31,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1513 transitions. [2024-11-09 07:00:31,329 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9444444444444444 [2024-11-09 07:00:31,329 INFO L175 Difference]: Start difference. First operand has 459 places, 464 transitions, 935 flow. Second operand 3 states and 1513 transitions. [2024-11-09 07:00:31,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 463 transitions, 957 flow [2024-11-09 07:00:31,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 463 transitions, 956 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:00:31,335 INFO L231 Difference]: Finished difference. Result has 459 places, 463 transitions, 936 flow [2024-11-09 07:00:31,335 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=932, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=936, PETRI_PLACES=459, PETRI_TRANSITIONS=463} [2024-11-09 07:00:31,337 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -31 predicate places. [2024-11-09 07:00:31,337 INFO L471 AbstractCegarLoop]: Abstraction has has 459 places, 463 transitions, 936 flow [2024-11-09 07:00:31,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 501.3333333333333) internal successors, (1504), 3 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:31,339 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:00:31,339 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:00:31,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 07:00:31,340 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-09 07:00:31,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:31,341 INFO L85 PathProgramCache]: Analyzing trace with hash 60480518, now seen corresponding path program 1 times [2024-11-09 07:00:31,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:00:31,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660011754] [2024-11-09 07:00:31,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:31,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:00:31,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:31,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:00:31,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:00:31,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660011754] [2024-11-09 07:00:31,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660011754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:00:31,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:00:31,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:00:31,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042330341] [2024-11-09 07:00:31,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:00:31,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:00:31,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:00:31,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:00:31,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:00:31,390 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 500 out of 534 [2024-11-09 07:00:31,392 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 463 transitions, 936 flow. Second operand has 3 states, 3 states have (on average 501.0) internal successors, (1503), 3 states have internal predecessors, (1503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:31,392 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:00:31,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 500 of 534 [2024-11-09 07:00:31,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:00:31,444 INFO L124 PetriNetUnfolderBase]: 14/496 cut-off events. [2024-11-09 07:00:31,444 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-09 07:00:31,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 523 conditions, 496 events. 14/496 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 936 event pairs, 2 based on Foata normal form. 0/447 useless extension candidates. Maximal degree in co-relation 492. Up to 15 conditions per place. [2024-11-09 07:00:31,446 INFO L140 encePairwiseOnDemand]: 530/534 looper letters, 10 selfloop transitions, 1 changer transitions 0/460 dead transitions. [2024-11-09 07:00:31,446 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 460 transitions, 952 flow [2024-11-09 07:00:31,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:00:31,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:00:31,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1514 transitions. [2024-11-09 07:00:31,448 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9450686641697877 [2024-11-09 07:00:31,448 INFO L175 Difference]: Start difference. First operand has 459 places, 463 transitions, 936 flow. Second operand 3 states and 1514 transitions. [2024-11-09 07:00:31,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 460 transitions, 952 flow [2024-11-09 07:00:31,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 456 places, 460 transitions, 948 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:00:31,454 INFO L231 Difference]: Finished difference. Result has 456 places, 460 transitions, 928 flow [2024-11-09 07:00:31,454 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=926, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=460, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=459, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=928, PETRI_PLACES=456, PETRI_TRANSITIONS=460} [2024-11-09 07:00:31,456 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -34 predicate places. [2024-11-09 07:00:31,456 INFO L471 AbstractCegarLoop]: Abstraction has has 456 places, 460 transitions, 928 flow [2024-11-09 07:00:31,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 501.0) internal successors, (1503), 3 states have internal predecessors, (1503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:31,457 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:00:31,457 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:00:31,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 07:00:31,458 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-09 07:00:31,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:31,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1273962220, now seen corresponding path program 1 times [2024-11-09 07:00:31,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:00:31,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668517050] [2024-11-09 07:00:31,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:31,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:00:31,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:31,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:00:31,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:00:31,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668517050] [2024-11-09 07:00:31,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668517050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:00:31,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:00:31,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:00:31,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914799488] [2024-11-09 07:00:31,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:00:31,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:00:31,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:00:31,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:00:31,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:00:32,272 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 432 out of 534 [2024-11-09 07:00:32,274 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 460 transitions, 928 flow. Second operand has 6 states, 6 states have (on average 433.5) internal successors, (2601), 6 states have internal predecessors, (2601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:32,274 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:00:32,274 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 432 of 534 [2024-11-09 07:00:32,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:00:32,484 INFO L124 PetriNetUnfolderBase]: 172/1180 cut-off events. [2024-11-09 07:00:32,484 INFO L125 PetriNetUnfolderBase]: For 27/28 co-relation queries the response was YES. [2024-11-09 07:00:32,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1542 conditions, 1180 events. 172/1180 cut-off events. For 27/28 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 5885 event pairs, 116 based on Foata normal form. 0/1039 useless extension candidates. Maximal degree in co-relation 1511. Up to 332 conditions per place. [2024-11-09 07:00:32,488 INFO L140 encePairwiseOnDemand]: 516/534 looper letters, 64 selfloop transitions, 15 changer transitions 0/457 dead transitions. [2024-11-09 07:00:32,488 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 457 transitions, 1080 flow [2024-11-09 07:00:32,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:00:32,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 07:00:32,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2674 transitions. [2024-11-09 07:00:32,492 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.83458177278402 [2024-11-09 07:00:32,492 INFO L175 Difference]: Start difference. First operand has 456 places, 460 transitions, 928 flow. Second operand 6 states and 2674 transitions. [2024-11-09 07:00:32,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 457 transitions, 1080 flow [2024-11-09 07:00:32,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 457 transitions, 1079 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:00:32,498 INFO L231 Difference]: Finished difference. Result has 457 places, 457 transitions, 951 flow [2024-11-09 07:00:32,498 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=921, PETRI_DIFFERENCE_MINUEND_PLACES=452, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=442, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=951, PETRI_PLACES=457, PETRI_TRANSITIONS=457} [2024-11-09 07:00:32,499 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -33 predicate places. [2024-11-09 07:00:32,499 INFO L471 AbstractCegarLoop]: Abstraction has has 457 places, 457 transitions, 951 flow [2024-11-09 07:00:32,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 433.5) internal successors, (2601), 6 states have internal predecessors, (2601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:32,500 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:00:32,501 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:00:32,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 07:00:32,501 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-09 07:00:32,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:32,501 INFO L85 PathProgramCache]: Analyzing trace with hash 482642813, now seen corresponding path program 1 times [2024-11-09 07:00:32,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:00:32,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864133743] [2024-11-09 07:00:32,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:32,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:00:32,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:32,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:00:32,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:00:32,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864133743] [2024-11-09 07:00:32,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864133743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:00:32,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:00:32,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:00:32,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137252564] [2024-11-09 07:00:32,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:00:32,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:00:32,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:00:32,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:00:32,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:00:32,546 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 501 out of 534 [2024-11-09 07:00:32,547 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 457 transitions, 951 flow. Second operand has 3 states, 3 states have (on average 502.3333333333333) internal successors, (1507), 3 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:32,547 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:00:32,547 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 501 of 534 [2024-11-09 07:00:32,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:00:32,581 INFO L124 PetriNetUnfolderBase]: 14/492 cut-off events. [2024-11-09 07:00:32,581 INFO L125 PetriNetUnfolderBase]: For 2/3 co-relation queries the response was YES. [2024-11-09 07:00:32,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 531 conditions, 492 events. 14/492 cut-off events. For 2/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 910 event pairs, 1 based on Foata normal form. 0/449 useless extension candidates. Maximal degree in co-relation 499. Up to 14 conditions per place. [2024-11-09 07:00:32,583 INFO L140 encePairwiseOnDemand]: 531/534 looper letters, 9 selfloop transitions, 2 changer transitions 0/456 dead transitions. [2024-11-09 07:00:32,583 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 456 transitions, 971 flow [2024-11-09 07:00:32,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:00:32,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:00:32,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1515 transitions. [2024-11-09 07:00:32,586 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9456928838951311 [2024-11-09 07:00:32,586 INFO L175 Difference]: Start difference. First operand has 457 places, 457 transitions, 951 flow. Second operand 3 states and 1515 transitions. [2024-11-09 07:00:32,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 456 transitions, 971 flow [2024-11-09 07:00:32,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 456 transitions, 941 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-09 07:00:32,592 INFO L231 Difference]: Finished difference. Result has 453 places, 456 transitions, 923 flow [2024-11-09 07:00:32,592 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=919, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=456, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=923, PETRI_PLACES=453, PETRI_TRANSITIONS=456} [2024-11-09 07:00:32,594 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -37 predicate places. [2024-11-09 07:00:32,594 INFO L471 AbstractCegarLoop]: Abstraction has has 453 places, 456 transitions, 923 flow [2024-11-09 07:00:32,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 502.3333333333333) internal successors, (1507), 3 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:32,595 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:00:32,596 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:00:32,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 07:00:32,596 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-09 07:00:32,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:32,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1160531727, now seen corresponding path program 1 times [2024-11-09 07:00:32,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:00:32,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264383310] [2024-11-09 07:00:32,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:32,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:00:32,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:32,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:00:32,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:00:32,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264383310] [2024-11-09 07:00:32,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264383310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:00:32,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:00:32,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:00:32,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229483521] [2024-11-09 07:00:32,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:00:32,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:00:32,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:00:32,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:00:32,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:00:32,657 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 501 out of 534 [2024-11-09 07:00:32,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 456 transitions, 923 flow. Second operand has 3 states, 3 states have (on average 502.3333333333333) internal successors, (1507), 3 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:32,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:00:32,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 501 of 534 [2024-11-09 07:00:32,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:00:32,692 INFO L124 PetriNetUnfolderBase]: 16/516 cut-off events. [2024-11-09 07:00:32,693 INFO L125 PetriNetUnfolderBase]: For 2/3 co-relation queries the response was YES. [2024-11-09 07:00:32,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 544 conditions, 516 events. 16/516 cut-off events. For 2/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1102 event pairs, 3 based on Foata normal form. 0/470 useless extension candidates. Maximal degree in co-relation 512. Up to 16 conditions per place. [2024-11-09 07:00:32,694 INFO L140 encePairwiseOnDemand]: 531/534 looper letters, 9 selfloop transitions, 2 changer transitions 0/455 dead transitions. [2024-11-09 07:00:32,695 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 455 transitions, 943 flow [2024-11-09 07:00:32,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:00:32,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:00:32,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1515 transitions. [2024-11-09 07:00:32,697 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9456928838951311 [2024-11-09 07:00:32,697 INFO L175 Difference]: Start difference. First operand has 453 places, 456 transitions, 923 flow. Second operand 3 states and 1515 transitions. [2024-11-09 07:00:32,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 455 transitions, 943 flow [2024-11-09 07:00:32,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 455 transitions, 939 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:00:32,702 INFO L231 Difference]: Finished difference. Result has 452 places, 455 transitions, 921 flow [2024-11-09 07:00:32,703 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=917, PETRI_DIFFERENCE_MINUEND_PLACES=450, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=455, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=921, PETRI_PLACES=452, PETRI_TRANSITIONS=455} [2024-11-09 07:00:32,703 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -38 predicate places. [2024-11-09 07:00:32,703 INFO L471 AbstractCegarLoop]: Abstraction has has 452 places, 455 transitions, 921 flow [2024-11-09 07:00:32,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 502.3333333333333) internal successors, (1507), 3 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:32,705 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:00:32,705 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:00:32,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 07:00:32,705 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-09 07:00:32,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:32,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1721359127, now seen corresponding path program 1 times [2024-11-09 07:00:32,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:00:32,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195944109] [2024-11-09 07:00:32,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:32,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:00:32,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:32,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:00:32,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:00:32,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195944109] [2024-11-09 07:00:32,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195944109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:00:32,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:00:32,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:00:32,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152610826] [2024-11-09 07:00:32,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:00:32,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:00:32,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:00:32,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:00:32,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:00:32,763 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 500 out of 534 [2024-11-09 07:00:32,764 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 452 places, 455 transitions, 921 flow. Second operand has 3 states, 3 states have (on average 501.3333333333333) internal successors, (1504), 3 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:32,765 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:00:32,765 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 500 of 534 [2024-11-09 07:00:32,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:00:32,825 INFO L124 PetriNetUnfolderBase]: 12/456 cut-off events. [2024-11-09 07:00:32,825 INFO L125 PetriNetUnfolderBase]: For 2/3 co-relation queries the response was YES. [2024-11-09 07:00:32,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 480 conditions, 456 events. 12/456 cut-off events. For 2/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 725 event pairs, 1 based on Foata normal form. 0/420 useless extension candidates. Maximal degree in co-relation 448. Up to 13 conditions per place. [2024-11-09 07:00:32,827 INFO L140 encePairwiseOnDemand]: 531/534 looper letters, 10 selfloop transitions, 2 changer transitions 0/454 dead transitions. [2024-11-09 07:00:32,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 454 transitions, 943 flow [2024-11-09 07:00:32,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:00:32,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:00:32,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1513 transitions. [2024-11-09 07:00:32,830 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9444444444444444 [2024-11-09 07:00:32,830 INFO L175 Difference]: Start difference. First operand has 452 places, 455 transitions, 921 flow. Second operand 3 states and 1513 transitions. [2024-11-09 07:00:32,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 454 transitions, 943 flow [2024-11-09 07:00:32,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 454 transitions, 939 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:00:32,838 INFO L231 Difference]: Finished difference. Result has 451 places, 454 transitions, 919 flow [2024-11-09 07:00:32,839 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=915, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=454, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=452, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=919, PETRI_PLACES=451, PETRI_TRANSITIONS=454} [2024-11-09 07:00:32,839 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -39 predicate places. [2024-11-09 07:00:32,840 INFO L471 AbstractCegarLoop]: Abstraction has has 451 places, 454 transitions, 919 flow [2024-11-09 07:00:32,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 501.3333333333333) internal successors, (1504), 3 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:32,841 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:00:32,841 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:00:32,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 07:00:32,841 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-09 07:00:32,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:32,842 INFO L85 PathProgramCache]: Analyzing trace with hash 991207939, now seen corresponding path program 1 times [2024-11-09 07:00:32,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:00:32,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500018091] [2024-11-09 07:00:32,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:32,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:00:32,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:32,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:00:32,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:00:32,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500018091] [2024-11-09 07:00:32,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500018091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:00:32,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:00:32,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:00:32,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830355452] [2024-11-09 07:00:32,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:00:32,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:00:32,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:00:32,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:00:32,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:00:33,059 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 497 out of 534 [2024-11-09 07:00:33,063 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 454 transitions, 919 flow. Second operand has 5 states, 5 states have (on average 498.6) internal successors, (2493), 5 states have internal predecessors, (2493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:33,063 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:00:33,063 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 497 of 534 [2024-11-09 07:00:33,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:00:33,136 INFO L124 PetriNetUnfolderBase]: 18/788 cut-off events. [2024-11-09 07:00:33,136 INFO L125 PetriNetUnfolderBase]: For 2/4 co-relation queries the response was YES. [2024-11-09 07:00:33,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 826 conditions, 788 events. 18/788 cut-off events. For 2/4 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2224 event pairs, 0 based on Foata normal form. 1/723 useless extension candidates. Maximal degree in co-relation 793. Up to 12 conditions per place. [2024-11-09 07:00:33,139 INFO L140 encePairwiseOnDemand]: 526/534 looper letters, 16 selfloop transitions, 7 changer transitions 0/461 dead transitions. [2024-11-09 07:00:33,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 461 transitions, 983 flow [2024-11-09 07:00:33,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:00:33,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:00:33,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2509 transitions. [2024-11-09 07:00:33,143 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9397003745318352 [2024-11-09 07:00:33,143 INFO L175 Difference]: Start difference. First operand has 451 places, 454 transitions, 919 flow. Second operand 5 states and 2509 transitions. [2024-11-09 07:00:33,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 461 transitions, 983 flow [2024-11-09 07:00:33,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 461 transitions, 979 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:00:33,151 INFO L231 Difference]: Finished difference. Result has 455 places, 456 transitions, 946 flow [2024-11-09 07:00:33,152 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=915, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=454, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=447, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=946, PETRI_PLACES=455, PETRI_TRANSITIONS=456} [2024-11-09 07:00:33,152 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -35 predicate places. [2024-11-09 07:00:33,152 INFO L471 AbstractCegarLoop]: Abstraction has has 455 places, 456 transitions, 946 flow [2024-11-09 07:00:33,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 498.6) internal successors, (2493), 5 states have internal predecessors, (2493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:33,154 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:00:33,154 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:00:33,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 07:00:33,154 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-09 07:00:33,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:33,155 INFO L85 PathProgramCache]: Analyzing trace with hash 719457379, now seen corresponding path program 1 times [2024-11-09 07:00:33,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:00:33,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667775158] [2024-11-09 07:00:33,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:33,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:00:33,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:33,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:00:33,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:00:33,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667775158] [2024-11-09 07:00:33,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667775158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:00:33,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:00:33,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:00:33,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125387478] [2024-11-09 07:00:33,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:00:33,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:00:33,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:00:33,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:00:33,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:00:33,212 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 500 out of 534 [2024-11-09 07:00:33,214 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 455 places, 456 transitions, 946 flow. Second operand has 3 states, 3 states have (on average 501.0) internal successors, (1503), 3 states have internal predecessors, (1503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:33,214 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:00:33,214 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 500 of 534 [2024-11-09 07:00:33,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:00:33,314 INFO L124 PetriNetUnfolderBase]: 39/1132 cut-off events. [2024-11-09 07:00:33,314 INFO L125 PetriNetUnfolderBase]: For 12/15 co-relation queries the response was YES. [2024-11-09 07:00:33,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1203 conditions, 1132 events. 39/1132 cut-off events. For 12/15 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 4257 event pairs, 0 based on Foata normal form. 0/1025 useless extension candidates. Maximal degree in co-relation 1169. Up to 31 conditions per place. [2024-11-09 07:00:33,317 INFO L140 encePairwiseOnDemand]: 528/534 looper letters, 15 selfloop transitions, 3 changer transitions 0/460 dead transitions. [2024-11-09 07:00:33,317 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 460 transitions, 994 flow [2024-11-09 07:00:33,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:00:33,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:00:33,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1521 transitions. [2024-11-09 07:00:33,320 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.949438202247191 [2024-11-09 07:00:33,321 INFO L175 Difference]: Start difference. First operand has 455 places, 456 transitions, 946 flow. Second operand 3 states and 1521 transitions. [2024-11-09 07:00:33,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 460 transitions, 994 flow [2024-11-09 07:00:33,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 460 transitions, 987 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:00:33,327 INFO L231 Difference]: Finished difference. Result has 453 places, 456 transitions, 954 flow [2024-11-09 07:00:33,327 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=933, PETRI_DIFFERENCE_MINUEND_PLACES=450, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=450, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=954, PETRI_PLACES=453, PETRI_TRANSITIONS=456} [2024-11-09 07:00:33,328 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -37 predicate places. [2024-11-09 07:00:33,328 INFO L471 AbstractCegarLoop]: Abstraction has has 453 places, 456 transitions, 954 flow [2024-11-09 07:00:33,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 501.0) internal successors, (1503), 3 states have internal predecessors, (1503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:33,329 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:00:33,329 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:00:33,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 07:00:33,329 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-09 07:00:33,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:33,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1487284237, now seen corresponding path program 1 times [2024-11-09 07:00:33,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:00:33,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81203809] [2024-11-09 07:00:33,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:33,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:00:33,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:33,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:00:33,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:00:33,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81203809] [2024-11-09 07:00:33,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81203809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:00:33,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:00:33,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:00:33,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618626883] [2024-11-09 07:00:33,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:00:33,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:00:33,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:00:33,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:00:33,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:00:33,382 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 534 [2024-11-09 07:00:33,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 456 transitions, 954 flow. Second operand has 3 states, 3 states have (on average 504.3333333333333) internal successors, (1513), 3 states have internal predecessors, (1513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:33,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:00:33,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 534 [2024-11-09 07:00:33,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:00:33,486 INFO L124 PetriNetUnfolderBase]: 55/1376 cut-off events. [2024-11-09 07:00:33,486 INFO L125 PetriNetUnfolderBase]: For 10/21 co-relation queries the response was YES. [2024-11-09 07:00:33,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1482 conditions, 1376 events. 55/1376 cut-off events. For 10/21 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 5954 event pairs, 0 based on Foata normal form. 0/1237 useless extension candidates. Maximal degree in co-relation 1448. Up to 43 conditions per place. [2024-11-09 07:00:33,491 INFO L140 encePairwiseOnDemand]: 530/534 looper letters, 12 selfloop transitions, 2 changer transitions 0/459 dead transitions. [2024-11-09 07:00:33,491 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 459 transitions, 991 flow [2024-11-09 07:00:33,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:00:33,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:00:33,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1525 transitions. [2024-11-09 07:00:33,493 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9519350811485643 [2024-11-09 07:00:33,493 INFO L175 Difference]: Start difference. First operand has 453 places, 456 transitions, 954 flow. Second operand 3 states and 1525 transitions. [2024-11-09 07:00:33,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 459 transitions, 991 flow [2024-11-09 07:00:33,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 459 transitions, 991 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 07:00:33,499 INFO L231 Difference]: Finished difference. Result has 454 places, 456 transitions, 964 flow [2024-11-09 07:00:33,499 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=950, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=454, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=452, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=964, PETRI_PLACES=454, PETRI_TRANSITIONS=456} [2024-11-09 07:00:33,500 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -36 predicate places. [2024-11-09 07:00:33,500 INFO L471 AbstractCegarLoop]: Abstraction has has 454 places, 456 transitions, 964 flow [2024-11-09 07:00:33,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 504.3333333333333) internal successors, (1513), 3 states have internal predecessors, (1513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:33,501 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:00:33,501 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:00:33,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 07:00:33,501 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-09 07:00:33,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:33,502 INFO L85 PathProgramCache]: Analyzing trace with hash -943918097, now seen corresponding path program 1 times [2024-11-09 07:00:33,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:00:33,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360354900] [2024-11-09 07:00:33,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:33,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:00:33,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:33,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:00:33,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:00:33,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360354900] [2024-11-09 07:00:33,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360354900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:00:33,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:00:33,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:00:33,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094792788] [2024-11-09 07:00:33,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:00:33,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:00:33,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:00:33,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:00:33,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:00:33,549 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 534 [2024-11-09 07:00:33,550 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 456 transitions, 964 flow. Second operand has 3 states, 3 states have (on average 504.3333333333333) internal successors, (1513), 3 states have internal predecessors, (1513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:33,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:00:33,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 534 [2024-11-09 07:00:33,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:00:33,708 INFO L124 PetriNetUnfolderBase]: 95/2044 cut-off events. [2024-11-09 07:00:33,708 INFO L125 PetriNetUnfolderBase]: For 20/23 co-relation queries the response was YES. [2024-11-09 07:00:33,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2233 conditions, 2044 events. 95/2044 cut-off events. For 20/23 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 11976 event pairs, 8 based on Foata normal form. 0/1828 useless extension candidates. Maximal degree in co-relation 2198. Up to 84 conditions per place. [2024-11-09 07:00:33,715 INFO L140 encePairwiseOnDemand]: 530/534 looper letters, 12 selfloop transitions, 2 changer transitions 0/459 dead transitions. [2024-11-09 07:00:33,715 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 459 transitions, 1001 flow [2024-11-09 07:00:33,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:00:33,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:00:33,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1525 transitions. [2024-11-09 07:00:33,717 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9519350811485643 [2024-11-09 07:00:33,717 INFO L175 Difference]: Start difference. First operand has 454 places, 456 transitions, 964 flow. Second operand 3 states and 1525 transitions. [2024-11-09 07:00:33,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 459 transitions, 1001 flow [2024-11-09 07:00:33,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 459 transitions, 1001 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 07:00:33,722 INFO L231 Difference]: Finished difference. Result has 455 places, 456 transitions, 974 flow [2024-11-09 07:00:33,723 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=960, PETRI_DIFFERENCE_MINUEND_PLACES=452, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=454, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=452, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=974, PETRI_PLACES=455, PETRI_TRANSITIONS=456} [2024-11-09 07:00:33,723 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -35 predicate places. [2024-11-09 07:00:33,724 INFO L471 AbstractCegarLoop]: Abstraction has has 455 places, 456 transitions, 974 flow [2024-11-09 07:00:33,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 504.3333333333333) internal successors, (1513), 3 states have internal predecessors, (1513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:33,724 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:00:33,724 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:00:33,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 07:00:33,725 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-09 07:00:33,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:33,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1987427533, now seen corresponding path program 1 times [2024-11-09 07:00:33,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:00:33,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323846648] [2024-11-09 07:00:33,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:33,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:00:33,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:33,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:00:33,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:00:33,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323846648] [2024-11-09 07:00:33,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323846648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:00:33,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:00:33,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 07:00:33,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641674563] [2024-11-09 07:00:33,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:00:33,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 07:00:33,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:00:33,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 07:00:33,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 07:00:34,071 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 477 out of 534 [2024-11-09 07:00:34,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 455 places, 456 transitions, 974 flow. Second operand has 7 states, 7 states have (on average 480.0) internal successors, (3360), 7 states have internal predecessors, (3360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:34,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:00:34,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 477 of 534 [2024-11-09 07:00:34,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:00:34,373 INFO L124 PetriNetUnfolderBase]: 123/2878 cut-off events. [2024-11-09 07:00:34,374 INFO L125 PetriNetUnfolderBase]: For 19/37 co-relation queries the response was YES. [2024-11-09 07:00:34,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3290 conditions, 2878 events. 123/2878 cut-off events. For 19/37 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 18116 event pairs, 18 based on Foata normal form. 8/2623 useless extension candidates. Maximal degree in co-relation 3253. Up to 100 conditions per place. [2024-11-09 07:00:34,384 INFO L140 encePairwiseOnDemand]: 513/534 looper letters, 44 selfloop transitions, 28 changer transitions 0/491 dead transitions. [2024-11-09 07:00:34,384 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 491 transitions, 1193 flow [2024-11-09 07:00:34,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 07:00:34,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 07:00:34,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4843 transitions. [2024-11-09 07:00:34,390 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9069288389513108 [2024-11-09 07:00:34,390 INFO L175 Difference]: Start difference. First operand has 455 places, 456 transitions, 974 flow. Second operand 10 states and 4843 transitions. [2024-11-09 07:00:34,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 491 transitions, 1193 flow [2024-11-09 07:00:34,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 464 places, 491 transitions, 1193 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 07:00:34,396 INFO L231 Difference]: Finished difference. Result has 468 places, 472 transitions, 1103 flow [2024-11-09 07:00:34,396 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=974, PETRI_DIFFERENCE_MINUEND_PLACES=455, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=456, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1103, PETRI_PLACES=468, PETRI_TRANSITIONS=472} [2024-11-09 07:00:34,397 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -22 predicate places. [2024-11-09 07:00:34,397 INFO L471 AbstractCegarLoop]: Abstraction has has 468 places, 472 transitions, 1103 flow [2024-11-09 07:00:34,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 480.0) internal successors, (3360), 7 states have internal predecessors, (3360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:34,398 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:00:34,398 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:00:34,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 07:00:34,398 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-09 07:00:34,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:34,398 INFO L85 PathProgramCache]: Analyzing trace with hash 2128981058, now seen corresponding path program 1 times [2024-11-09 07:00:34,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:00:34,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352527072] [2024-11-09 07:00:34,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:34,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:00:34,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:34,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:00:34,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:00:34,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352527072] [2024-11-09 07:00:34,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352527072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:00:34,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:00:34,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:00:34,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589031319] [2024-11-09 07:00:34,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:00:34,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:00:34,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:00:34,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:00:34,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:00:34,559 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 497 out of 534 [2024-11-09 07:00:34,561 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 468 places, 472 transitions, 1103 flow. Second operand has 5 states, 5 states have (on average 499.0) internal successors, (2495), 5 states have internal predecessors, (2495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:34,561 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:00:34,561 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 497 of 534 [2024-11-09 07:00:34,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:00:34,779 INFO L124 PetriNetUnfolderBase]: 122/2431 cut-off events. [2024-11-09 07:00:34,779 INFO L125 PetriNetUnfolderBase]: For 83/92 co-relation queries the response was YES. [2024-11-09 07:00:34,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2844 conditions, 2431 events. 122/2431 cut-off events. For 83/92 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 14348 event pairs, 33 based on Foata normal form. 5/2226 useless extension candidates. Maximal degree in co-relation 2800. Up to 115 conditions per place. [2024-11-09 07:00:34,789 INFO L140 encePairwiseOnDemand]: 526/534 looper letters, 17 selfloop transitions, 7 changer transitions 0/480 dead transitions. [2024-11-09 07:00:34,789 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 472 places, 480 transitions, 1172 flow [2024-11-09 07:00:34,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:00:34,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:00:34,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2510 transitions. [2024-11-09 07:00:34,792 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9400749063670412 [2024-11-09 07:00:34,792 INFO L175 Difference]: Start difference. First operand has 468 places, 472 transitions, 1103 flow. Second operand 5 states and 2510 transitions. [2024-11-09 07:00:34,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 472 places, 480 transitions, 1172 flow [2024-11-09 07:00:34,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 480 transitions, 1172 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 07:00:34,799 INFO L231 Difference]: Finished difference. Result has 474 places, 474 transitions, 1134 flow [2024-11-09 07:00:34,800 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=1103, PETRI_DIFFERENCE_MINUEND_PLACES=468, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=472, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=465, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1134, PETRI_PLACES=474, PETRI_TRANSITIONS=474} [2024-11-09 07:00:34,800 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -16 predicate places. [2024-11-09 07:00:34,800 INFO L471 AbstractCegarLoop]: Abstraction has has 474 places, 474 transitions, 1134 flow [2024-11-09 07:00:34,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 499.0) internal successors, (2495), 5 states have internal predecessors, (2495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:34,801 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:00:34,802 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:00:34,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 07:00:34,802 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-09 07:00:34,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:34,802 INFO L85 PathProgramCache]: Analyzing trace with hash 667475618, now seen corresponding path program 1 times [2024-11-09 07:00:34,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:00:34,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489913405] [2024-11-09 07:00:34,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:34,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:00:34,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:34,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:00:34,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:00:34,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489913405] [2024-11-09 07:00:34,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489913405] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:00:34,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:00:34,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:00:34,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068253685] [2024-11-09 07:00:34,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:00:34,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:00:34,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:00:34,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:00:34,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:00:35,002 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 498 out of 534 [2024-11-09 07:00:35,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 474 places, 474 transitions, 1134 flow. Second operand has 5 states, 5 states have (on average 500.0) internal successors, (2500), 5 states have internal predecessors, (2500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:35,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:00:35,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 498 of 534 [2024-11-09 07:00:35,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:00:35,269 INFO L124 PetriNetUnfolderBase]: 104/2564 cut-off events. [2024-11-09 07:00:35,269 INFO L125 PetriNetUnfolderBase]: For 160/169 co-relation queries the response was YES. [2024-11-09 07:00:35,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3026 conditions, 2564 events. 104/2564 cut-off events. For 160/169 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 14613 event pairs, 18 based on Foata normal form. 5/2355 useless extension candidates. Maximal degree in co-relation 2978. Up to 78 conditions per place. [2024-11-09 07:00:35,279 INFO L140 encePairwiseOnDemand]: 525/534 looper letters, 17 selfloop transitions, 12 changer transitions 0/483 dead transitions. [2024-11-09 07:00:35,279 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 483 transitions, 1218 flow [2024-11-09 07:00:35,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:00:35,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 07:00:35,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3014 transitions. [2024-11-09 07:00:35,284 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9406991260923845 [2024-11-09 07:00:35,284 INFO L175 Difference]: Start difference. First operand has 474 places, 474 transitions, 1134 flow. Second operand 6 states and 3014 transitions. [2024-11-09 07:00:35,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 483 transitions, 1218 flow [2024-11-09 07:00:35,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 477 places, 483 transitions, 1209 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-09 07:00:35,291 INFO L231 Difference]: Finished difference. Result has 481 places, 478 transitions, 1191 flow [2024-11-09 07:00:35,291 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=1120, PETRI_DIFFERENCE_MINUEND_PLACES=472, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=473, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1191, PETRI_PLACES=481, PETRI_TRANSITIONS=478} [2024-11-09 07:00:35,292 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -9 predicate places. [2024-11-09 07:00:35,292 INFO L471 AbstractCegarLoop]: Abstraction has has 481 places, 478 transitions, 1191 flow [2024-11-09 07:00:35,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 500.0) internal successors, (2500), 5 states have internal predecessors, (2500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:35,297 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:00:35,297 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:00:35,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 07:00:35,297 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-09 07:00:35,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:35,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1285029995, now seen corresponding path program 1 times [2024-11-09 07:00:35,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:00:35,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265229043] [2024-11-09 07:00:35,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:35,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:00:35,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:35,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:00:35,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:00:35,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265229043] [2024-11-09 07:00:35,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265229043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:00:35,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:00:35,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:00:35,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515228031] [2024-11-09 07:00:35,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:00:35,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:00:35,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:00:35,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:00:35,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:00:35,353 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 499 out of 534 [2024-11-09 07:00:35,354 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 478 transitions, 1191 flow. Second operand has 3 states, 3 states have (on average 501.6666666666667) internal successors, (1505), 3 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:35,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:00:35,355 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 499 of 534 [2024-11-09 07:00:35,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:00:35,559 INFO L124 PetriNetUnfolderBase]: 64/2292 cut-off events. [2024-11-09 07:00:35,560 INFO L125 PetriNetUnfolderBase]: For 119/131 co-relation queries the response was YES. [2024-11-09 07:00:35,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2745 conditions, 2292 events. 64/2292 cut-off events. For 119/131 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 11847 event pairs, 0 based on Foata normal form. 0/2113 useless extension candidates. Maximal degree in co-relation 2693. Up to 99 conditions per place. [2024-11-09 07:00:35,569 INFO L140 encePairwiseOnDemand]: 531/534 looper letters, 11 selfloop transitions, 2 changer transitions 0/477 dead transitions. [2024-11-09 07:00:35,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 482 places, 477 transitions, 1215 flow [2024-11-09 07:00:35,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:00:35,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:00:35,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1511 transitions. [2024-11-09 07:00:35,571 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9431960049937578 [2024-11-09 07:00:35,571 INFO L175 Difference]: Start difference. First operand has 481 places, 478 transitions, 1191 flow. Second operand 3 states and 1511 transitions. [2024-11-09 07:00:35,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 482 places, 477 transitions, 1215 flow [2024-11-09 07:00:35,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 481 places, 477 transitions, 1206 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-09 07:00:35,577 INFO L231 Difference]: Finished difference. Result has 481 places, 477 transitions, 1184 flow [2024-11-09 07:00:35,577 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=1180, PETRI_DIFFERENCE_MINUEND_PLACES=479, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=477, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=475, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1184, PETRI_PLACES=481, PETRI_TRANSITIONS=477} [2024-11-09 07:00:35,578 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -9 predicate places. [2024-11-09 07:00:35,578 INFO L471 AbstractCegarLoop]: Abstraction has has 481 places, 477 transitions, 1184 flow [2024-11-09 07:00:35,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 501.6666666666667) internal successors, (1505), 3 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:35,579 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:00:35,579 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:00:35,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 07:00:35,579 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-09 07:00:35,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:35,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1954206685, now seen corresponding path program 1 times [2024-11-09 07:00:35,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:00:35,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186684305] [2024-11-09 07:00:35,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:35,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:00:35,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:35,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:00:35,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:00:35,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186684305] [2024-11-09 07:00:35,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186684305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:00:35,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:00:35,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:00:35,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694624109] [2024-11-09 07:00:35,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:00:35,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:00:35,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:00:35,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:00:35,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:00:36,157 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 451 out of 534 [2024-11-09 07:00:36,158 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 477 transitions, 1184 flow. Second operand has 6 states, 6 states have (on average 452.6666666666667) internal successors, (2716), 6 states have internal predecessors, (2716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:36,158 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:00:36,158 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 451 of 534 [2024-11-09 07:00:36,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:00:36,471 INFO L124 PetriNetUnfolderBase]: 258/3166 cut-off events. [2024-11-09 07:00:36,471 INFO L125 PetriNetUnfolderBase]: For 187/193 co-relation queries the response was YES. [2024-11-09 07:00:36,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4274 conditions, 3166 events. 258/3166 cut-off events. For 187/193 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 20321 event pairs, 164 based on Foata normal form. 0/2916 useless extension candidates. Maximal degree in co-relation 4221. Up to 654 conditions per place. [2024-11-09 07:00:36,486 INFO L140 encePairwiseOnDemand]: 528/534 looper letters, 60 selfloop transitions, 5 changer transitions 0/476 dead transitions. [2024-11-09 07:00:36,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 485 places, 476 transitions, 1312 flow [2024-11-09 07:00:36,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:00:36,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 07:00:36,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2768 transitions. [2024-11-09 07:00:36,492 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8639200998751561 [2024-11-09 07:00:36,492 INFO L175 Difference]: Start difference. First operand has 481 places, 477 transitions, 1184 flow. Second operand 6 states and 2768 transitions. [2024-11-09 07:00:36,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 485 places, 476 transitions, 1312 flow [2024-11-09 07:00:36,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 483 places, 476 transitions, 1308 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:00:36,500 INFO L231 Difference]: Finished difference. Result has 483 places, 476 transitions, 1188 flow [2024-11-09 07:00:36,501 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=1178, PETRI_DIFFERENCE_MINUEND_PLACES=478, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=476, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=471, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1188, PETRI_PLACES=483, PETRI_TRANSITIONS=476} [2024-11-09 07:00:36,501 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -7 predicate places. [2024-11-09 07:00:36,502 INFO L471 AbstractCegarLoop]: Abstraction has has 483 places, 476 transitions, 1188 flow [2024-11-09 07:00:36,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 452.6666666666667) internal successors, (2716), 6 states have internal predecessors, (2716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:36,502 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:00:36,503 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:00:36,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 07:00:36,503 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-09 07:00:36,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:36,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1165846184, now seen corresponding path program 1 times [2024-11-09 07:00:36,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:00:36,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20314550] [2024-11-09 07:00:36,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:36,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:00:36,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:36,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:00:36,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:00:36,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20314550] [2024-11-09 07:00:36,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20314550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:00:36,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:00:36,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:00:36,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554090257] [2024-11-09 07:00:36,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:00:36,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:00:36,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:00:36,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:00:36,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:00:36,564 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 499 out of 534 [2024-11-09 07:00:36,565 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 483 places, 476 transitions, 1188 flow. Second operand has 3 states, 3 states have (on average 501.6666666666667) internal successors, (1505), 3 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:36,565 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:00:36,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 499 of 534 [2024-11-09 07:00:36,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:00:36,803 INFO L124 PetriNetUnfolderBase]: 64/2277 cut-off events. [2024-11-09 07:00:36,803 INFO L125 PetriNetUnfolderBase]: For 96/108 co-relation queries the response was YES. [2024-11-09 07:00:36,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2737 conditions, 2277 events. 64/2277 cut-off events. For 96/108 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 11721 event pairs, 0 based on Foata normal form. 0/2113 useless extension candidates. Maximal degree in co-relation 2685. Up to 99 conditions per place. [2024-11-09 07:00:36,812 INFO L140 encePairwiseOnDemand]: 531/534 looper letters, 11 selfloop transitions, 2 changer transitions 0/475 dead transitions. [2024-11-09 07:00:36,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 484 places, 475 transitions, 1212 flow [2024-11-09 07:00:36,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:00:36,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:00:36,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1511 transitions. [2024-11-09 07:00:36,815 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9431960049937578 [2024-11-09 07:00:36,815 INFO L175 Difference]: Start difference. First operand has 483 places, 476 transitions, 1188 flow. Second operand 3 states and 1511 transitions. [2024-11-09 07:00:36,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 484 places, 475 transitions, 1212 flow [2024-11-09 07:00:36,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 479 places, 475 transitions, 1202 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-09 07:00:36,820 INFO L231 Difference]: Finished difference. Result has 479 places, 475 transitions, 1180 flow [2024-11-09 07:00:36,821 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=1176, PETRI_DIFFERENCE_MINUEND_PLACES=477, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=475, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=473, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1180, PETRI_PLACES=479, PETRI_TRANSITIONS=475} [2024-11-09 07:00:36,821 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -11 predicate places. [2024-11-09 07:00:36,821 INFO L471 AbstractCegarLoop]: Abstraction has has 479 places, 475 transitions, 1180 flow [2024-11-09 07:00:36,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 501.6666666666667) internal successors, (1505), 3 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:36,822 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:00:36,822 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:00:36,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 07:00:36,822 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-09 07:00:36,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:36,823 INFO L85 PathProgramCache]: Analyzing trace with hash 468468258, now seen corresponding path program 1 times [2024-11-09 07:00:36,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:00:36,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712199628] [2024-11-09 07:00:36,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:36,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:00:36,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:36,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:00:36,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:00:36,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712199628] [2024-11-09 07:00:36,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712199628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:00:36,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:00:36,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:00:36,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134570116] [2024-11-09 07:00:36,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:00:36,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:00:36,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:00:36,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:00:36,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:00:36,866 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 497 out of 534 [2024-11-09 07:00:36,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 479 places, 475 transitions, 1180 flow. Second operand has 3 states, 3 states have (on average 499.3333333333333) internal successors, (1498), 3 states have internal predecessors, (1498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:36,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:00:36,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 497 of 534 [2024-11-09 07:00:36,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:00:37,079 INFO L124 PetriNetUnfolderBase]: 64/2235 cut-off events. [2024-11-09 07:00:37,080 INFO L125 PetriNetUnfolderBase]: For 96/108 co-relation queries the response was YES. [2024-11-09 07:00:37,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2705 conditions, 2235 events. 64/2235 cut-off events. For 96/108 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 11375 event pairs, 0 based on Foata normal form. 0/2113 useless extension candidates. Maximal degree in co-relation 2654. Up to 84 conditions per place. [2024-11-09 07:00:37,085 INFO L140 encePairwiseOnDemand]: 529/534 looper letters, 12 selfloop transitions, 1 changer transitions 0/471 dead transitions. [2024-11-09 07:00:37,085 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 477 places, 471 transitions, 1198 flow [2024-11-09 07:00:37,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:00:37,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:00:37,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1508 transitions. [2024-11-09 07:00:37,087 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9413233458177278 [2024-11-09 07:00:37,087 INFO L175 Difference]: Start difference. First operand has 479 places, 475 transitions, 1180 flow. Second operand 3 states and 1508 transitions. [2024-11-09 07:00:37,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 477 places, 471 transitions, 1198 flow [2024-11-09 07:00:37,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 471 transitions, 1194 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:00:37,093 INFO L231 Difference]: Finished difference. Result has 475 places, 471 transitions, 1170 flow [2024-11-09 07:00:37,093 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=1168, PETRI_DIFFERENCE_MINUEND_PLACES=473, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=471, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=470, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1170, PETRI_PLACES=475, PETRI_TRANSITIONS=471} [2024-11-09 07:00:37,094 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -15 predicate places. [2024-11-09 07:00:37,094 INFO L471 AbstractCegarLoop]: Abstraction has has 475 places, 471 transitions, 1170 flow [2024-11-09 07:00:37,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 499.3333333333333) internal successors, (1498), 3 states have internal predecessors, (1498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:37,094 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:00:37,095 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:00:37,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 07:00:37,095 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-09 07:00:37,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:37,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1401116803, now seen corresponding path program 1 times [2024-11-09 07:00:37,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:00:37,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253750300] [2024-11-09 07:00:37,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:37,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:00:37,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:37,445 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:00:37,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:00:37,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253750300] [2024-11-09 07:00:37,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253750300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:00:37,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:00:37,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:00:37,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948017058] [2024-11-09 07:00:37,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:00:37,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:00:37,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:00:37,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:00:37,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:00:37,784 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 475 out of 534 [2024-11-09 07:00:37,785 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 475 places, 471 transitions, 1170 flow. Second operand has 6 states, 6 states have (on average 477.8333333333333) internal successors, (2867), 6 states have internal predecessors, (2867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:37,785 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:00:37,785 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 475 of 534 [2024-11-09 07:00:37,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:00:38,163 INFO L124 PetriNetUnfolderBase]: 242/3490 cut-off events. [2024-11-09 07:00:38,163 INFO L125 PetriNetUnfolderBase]: For 192/193 co-relation queries the response was YES. [2024-11-09 07:00:38,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4470 conditions, 3490 events. 242/3490 cut-off events. For 192/193 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 23125 event pairs, 82 based on Foata normal form. 0/3257 useless extension candidates. Maximal degree in co-relation 4418. Up to 402 conditions per place. [2024-11-09 07:00:38,172 INFO L140 encePairwiseOnDemand]: 523/534 looper letters, 44 selfloop transitions, 22 changer transitions 0/496 dead transitions. [2024-11-09 07:00:38,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 480 places, 496 transitions, 1356 flow [2024-11-09 07:00:38,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:00:38,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 07:00:38,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2915 transitions. [2024-11-09 07:00:38,176 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9098002496878901 [2024-11-09 07:00:38,176 INFO L175 Difference]: Start difference. First operand has 475 places, 471 transitions, 1170 flow. Second operand 6 states and 2915 transitions. [2024-11-09 07:00:38,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 480 places, 496 transitions, 1356 flow [2024-11-09 07:00:38,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 479 places, 496 transitions, 1355 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:00:38,182 INFO L231 Difference]: Finished difference. Result has 484 places, 492 transitions, 1319 flow [2024-11-09 07:00:38,183 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=1169, PETRI_DIFFERENCE_MINUEND_PLACES=474, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=471, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1319, PETRI_PLACES=484, PETRI_TRANSITIONS=492} [2024-11-09 07:00:38,183 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -6 predicate places. [2024-11-09 07:00:38,183 INFO L471 AbstractCegarLoop]: Abstraction has has 484 places, 492 transitions, 1319 flow [2024-11-09 07:00:38,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 477.8333333333333) internal successors, (2867), 6 states have internal predecessors, (2867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:38,184 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:00:38,184 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:00:38,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-09 07:00:38,184 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-09 07:00:38,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:38,184 INFO L85 PathProgramCache]: Analyzing trace with hash -123318678, now seen corresponding path program 1 times [2024-11-09 07:00:38,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:00:38,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843430417] [2024-11-09 07:00:38,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:38,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:00:38,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:38,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:00:38,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:00:38,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843430417] [2024-11-09 07:00:38,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843430417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:00:38,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:00:38,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:00:38,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263197088] [2024-11-09 07:00:38,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:00:38,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:00:38,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:00:38,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:00:38,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:00:38,231 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 497 out of 534 [2024-11-09 07:00:38,232 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 484 places, 492 transitions, 1319 flow. Second operand has 3 states, 3 states have (on average 499.3333333333333) internal successors, (1498), 3 states have internal predecessors, (1498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:38,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:00:38,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 497 of 534 [2024-11-09 07:00:38,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:00:38,508 INFO L124 PetriNetUnfolderBase]: 128/2803 cut-off events. [2024-11-09 07:00:38,508 INFO L125 PetriNetUnfolderBase]: For 128/143 co-relation queries the response was YES. [2024-11-09 07:00:38,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3512 conditions, 2803 events. 128/2803 cut-off events. For 128/143 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 16297 event pairs, 4 based on Foata normal form. 0/2688 useless extension candidates. Maximal degree in co-relation 3457. Up to 105 conditions per place. [2024-11-09 07:00:38,515 INFO L140 encePairwiseOnDemand]: 527/534 looper letters, 12 selfloop transitions, 3 changer transitions 0/490 dead transitions. [2024-11-09 07:00:38,515 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 482 places, 490 transitions, 1345 flow [2024-11-09 07:00:38,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:00:38,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:00:38,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1510 transitions. [2024-11-09 07:00:38,518 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9425717852684145 [2024-11-09 07:00:38,518 INFO L175 Difference]: Start difference. First operand has 484 places, 492 transitions, 1319 flow. Second operand 3 states and 1510 transitions. [2024-11-09 07:00:38,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 482 places, 490 transitions, 1345 flow [2024-11-09 07:00:38,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 482 places, 490 transitions, 1345 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 07:00:38,525 INFO L231 Difference]: Finished difference. Result has 483 places, 490 transitions, 1328 flow [2024-11-09 07:00:38,526 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=1311, PETRI_DIFFERENCE_MINUEND_PLACES=480, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=488, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=485, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1328, PETRI_PLACES=483, PETRI_TRANSITIONS=490} [2024-11-09 07:00:38,526 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -7 predicate places. [2024-11-09 07:00:38,526 INFO L471 AbstractCegarLoop]: Abstraction has has 483 places, 490 transitions, 1328 flow [2024-11-09 07:00:38,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 499.3333333333333) internal successors, (1498), 3 states have internal predecessors, (1498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:38,527 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:00:38,527 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:00:38,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-09 07:00:38,527 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-09 07:00:38,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:38,528 INFO L85 PathProgramCache]: Analyzing trace with hash -208622012, now seen corresponding path program 1 times [2024-11-09 07:00:38,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:00:38,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786936034] [2024-11-09 07:00:38,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:38,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:00:38,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:38,940 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:00:38,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:00:38,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786936034] [2024-11-09 07:00:38,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786936034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:00:38,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:00:38,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:00:38,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624454057] [2024-11-09 07:00:38,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:00:38,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:00:38,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:00:38,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:00:38,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:00:39,114 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 453 out of 534 [2024-11-09 07:00:39,116 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 483 places, 490 transitions, 1328 flow. Second operand has 6 states, 6 states have (on average 456.6666666666667) internal successors, (2740), 6 states have internal predecessors, (2740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:39,116 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:00:39,116 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 453 of 534 [2024-11-09 07:00:39,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:00:39,722 INFO L124 PetriNetUnfolderBase]: 575/4337 cut-off events. [2024-11-09 07:00:39,722 INFO L125 PetriNetUnfolderBase]: For 590/615 co-relation queries the response was YES. [2024-11-09 07:00:39,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6741 conditions, 4337 events. 575/4337 cut-off events. For 590/615 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 30557 event pairs, 232 based on Foata normal form. 4/4107 useless extension candidates. Maximal degree in co-relation 6684. Up to 1126 conditions per place. [2024-11-09 07:00:39,752 INFO L140 encePairwiseOnDemand]: 515/534 looper letters, 85 selfloop transitions, 55 changer transitions 0/547 dead transitions. [2024-11-09 07:00:39,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 488 places, 547 transitions, 1758 flow [2024-11-09 07:00:39,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:00:39,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 07:00:39,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2837 transitions. [2024-11-09 07:00:39,757 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8854556803995006 [2024-11-09 07:00:39,757 INFO L175 Difference]: Start difference. First operand has 483 places, 490 transitions, 1328 flow. Second operand 6 states and 2837 transitions. [2024-11-09 07:00:39,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 488 places, 547 transitions, 1758 flow [2024-11-09 07:00:39,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 488 places, 547 transitions, 1758 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 07:00:39,767 INFO L231 Difference]: Finished difference. Result has 493 places, 543 transitions, 1722 flow [2024-11-09 07:00:39,768 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=1328, PETRI_DIFFERENCE_MINUEND_PLACES=483, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=490, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=471, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1722, PETRI_PLACES=493, PETRI_TRANSITIONS=543} [2024-11-09 07:00:39,768 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, 3 predicate places. [2024-11-09 07:00:39,768 INFO L471 AbstractCegarLoop]: Abstraction has has 493 places, 543 transitions, 1722 flow [2024-11-09 07:00:39,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 456.6666666666667) internal successors, (2740), 6 states have internal predecessors, (2740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:39,769 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:00:39,769 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:00:39,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-09 07:00:39,770 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-09 07:00:39,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:39,770 INFO L85 PathProgramCache]: Analyzing trace with hash 120435393, now seen corresponding path program 1 times [2024-11-09 07:00:39,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:00:39,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843875667] [2024-11-09 07:00:39,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:39,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:00:39,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:39,912 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:00:39,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:00:39,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843875667] [2024-11-09 07:00:39,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843875667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:00:39,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:00:39,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 07:00:39,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626554712] [2024-11-09 07:00:39,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:00:39,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 07:00:39,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:00:39,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 07:00:39,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 07:00:40,194 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 477 out of 534 [2024-11-09 07:00:40,195 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 493 places, 543 transitions, 1722 flow. Second operand has 7 states, 7 states have (on average 481.2857142857143) internal successors, (3369), 7 states have internal predecessors, (3369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:40,195 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:00:40,196 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 477 of 534 [2024-11-09 07:00:40,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:00:40,657 INFO L124 PetriNetUnfolderBase]: 335/4076 cut-off events. [2024-11-09 07:00:40,657 INFO L125 PetriNetUnfolderBase]: For 477/508 co-relation queries the response was YES. [2024-11-09 07:00:40,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5843 conditions, 4076 events. 335/4076 cut-off events. For 477/508 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 28212 event pairs, 33 based on Foata normal form. 13/3951 useless extension candidates. Maximal degree in co-relation 5780. Up to 265 conditions per place. [2024-11-09 07:00:40,676 INFO L140 encePairwiseOnDemand]: 521/534 looper letters, 54 selfloop transitions, 18 changer transitions 0/564 dead transitions. [2024-11-09 07:00:40,676 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 502 places, 564 transitions, 1913 flow [2024-11-09 07:00:40,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 07:00:40,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 07:00:40,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4829 transitions. [2024-11-09 07:00:40,685 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9043071161048689 [2024-11-09 07:00:40,685 INFO L175 Difference]: Start difference. First operand has 493 places, 543 transitions, 1722 flow. Second operand 10 states and 4829 transitions. [2024-11-09 07:00:40,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 502 places, 564 transitions, 1913 flow [2024-11-09 07:00:40,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 502 places, 564 transitions, 1881 flow, removed 16 selfloop flow, removed 0 redundant places. [2024-11-09 07:00:40,695 INFO L231 Difference]: Finished difference. Result has 506 places, 554 transitions, 1777 flow [2024-11-09 07:00:40,695 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=534, PETRI_DIFFERENCE_MINUEND_FLOW=1690, PETRI_DIFFERENCE_MINUEND_PLACES=493, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=543, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=531, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1777, PETRI_PLACES=506, PETRI_TRANSITIONS=554} [2024-11-09 07:00:40,696 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, 16 predicate places. [2024-11-09 07:00:40,696 INFO L471 AbstractCegarLoop]: Abstraction has has 506 places, 554 transitions, 1777 flow [2024-11-09 07:00:40,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 481.2857142857143) internal successors, (3369), 7 states have internal predecessors, (3369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:00:40,697 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:00:40,697 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:00:40,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-09 07:00:40,697 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-09 07:00:40,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:40,697 INFO L85 PathProgramCache]: Analyzing trace with hash -675719615, now seen corresponding path program 1 times [2024-11-09 07:00:40,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:00:40,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917366886] [2024-11-09 07:00:40,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:40,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:00:40,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat