./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/loop-tiling-eq.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/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-wip.dd.update-z3-fca748b-m [2024-11-20 13:53:58,903 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 13:53:58,977 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-20 13:53:58,983 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 13:53:58,985 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 13:53:59,016 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 13:53:59,016 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 13:53:59,017 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 13:53:59,019 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 13:53:59,022 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 13:53:59,023 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 13:53:59,023 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 13:53:59,024 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 13:53:59,024 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 13:53:59,024 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 13:53:59,024 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 13:53:59,025 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 13:53:59,025 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 13:53:59,027 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 13:53:59,027 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 13:53:59,027 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 13:53:59,028 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 13:53:59,029 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-20 13:53:59,029 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 13:53:59,029 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 13:53:59,030 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 13:53:59,030 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 13:53:59,030 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 13:53:59,031 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 13:53:59,032 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 13:53:59,032 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 13:53:59,033 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:53:59,033 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 13:53:59,034 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 13:53:59,034 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 13:53:59,034 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 13:53:59,035 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 13:53:59,035 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 13:53:59,035 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 13:53:59,035 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 13:53:59,036 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 13:53:59,036 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c579ed20cf5b381709dcc4ef9fbcf839f80c68ac017a29b947b11bd3a57dd56 [2024-11-20 13:53:59,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 13:53:59,322 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 13:53:59,325 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 13:53:59,326 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 13:53:59,327 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 13:53:59,328 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/loop-tiling-eq.wvr.c [2024-11-20 13:54:00,745 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 13:54:00,925 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 13:54:00,926 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/loop-tiling-eq.wvr.c [2024-11-20 13:54:00,934 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/996afa41f/ea32f8ed56434c75bd3bc9467eef4680/FLAGe2c315295 [2024-11-20 13:54:00,948 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/996afa41f/ea32f8ed56434c75bd3bc9467eef4680 [2024-11-20 13:54:00,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 13:54:00,953 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 13:54:00,956 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 13:54:00,956 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 13:54:00,962 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 13:54:00,963 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:54:00" (1/1) ... [2024-11-20 13:54:00,964 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@80014aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:00, skipping insertion in model container [2024-11-20 13:54:00,964 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:54:00" (1/1) ... [2024-11-20 13:54:00,993 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 13:54:01,260 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:54:01,269 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 13:54:01,302 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:54:01,333 INFO L204 MainTranslator]: Completed translation [2024-11-20 13:54:01,334 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:01 WrapperNode [2024-11-20 13:54:01,334 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 13:54:01,335 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 13:54:01,335 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 13:54:01,336 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 13:54:01,343 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:01" (1/1) ... [2024-11-20 13:54:01,355 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:01" (1/1) ... [2024-11-20 13:54:01,401 INFO L138 Inliner]: procedures = 24, calls = 32, calls flagged for inlining = 14, calls inlined = 18, statements flattened = 331 [2024-11-20 13:54:01,402 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 13:54:01,403 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 13:54:01,403 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 13:54:01,403 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 13:54:01,412 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:01" (1/1) ... [2024-11-20 13:54:01,412 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:01" (1/1) ... [2024-11-20 13:54:01,418 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:01" (1/1) ... [2024-11-20 13:54:01,418 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:01" (1/1) ... [2024-11-20 13:54:01,440 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:01" (1/1) ... [2024-11-20 13:54:01,448 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:01" (1/1) ... [2024-11-20 13:54:01,454 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:01" (1/1) ... [2024-11-20 13:54:01,456 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:01" (1/1) ... [2024-11-20 13:54:01,462 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 13:54:01,467 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 13:54:01,467 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 13:54:01,468 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 13:54:01,468 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:01" (1/1) ... [2024-11-20 13:54:01,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:54:01,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:54:01,511 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) [2024-11-20 13:54:01,514 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 [2024-11-20 13:54:01,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-20 13:54:01,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 13:54:01,565 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-20 13:54:01,565 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-20 13:54:01,565 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-20 13:54:01,565 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-20 13:54:01,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-20 13:54:01,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-20 13:54:01,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-20 13:54:01,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 13:54:01,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 13:54:01,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 13:54:01,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-20 13:54:01,569 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 13:54:01,685 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 13:54:01,687 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 13:54:02,409 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 13:54:02,409 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 13:54:02,438 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 13:54:02,438 INFO L316 CfgBuilder]: Removed 7 assume(true) statements. [2024-11-20 13:54:02,439 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:54:02 BoogieIcfgContainer [2024-11-20 13:54:02,439 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 13:54:02,441 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 13:54:02,441 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 13:54:02,444 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 13:54:02,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:54:00" (1/3) ... [2024-11-20 13:54:02,445 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ca6e84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:54:02, skipping insertion in model container [2024-11-20 13:54:02,445 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:01" (2/3) ... [2024-11-20 13:54:02,446 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ca6e84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:54:02, skipping insertion in model container [2024-11-20 13:54:02,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:54:02" (3/3) ... [2024-11-20 13:54:02,447 INFO L112 eAbstractionObserver]: Analyzing ICFG loop-tiling-eq.wvr.c [2024-11-20 13:54:02,462 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 13:54:02,463 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 55 error locations. [2024-11-20 13:54:02,463 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 13:54:02,592 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-20 13:54:02,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 511 places, 534 transitions, 1082 flow [2024-11-20 13:54:02,882 INFO L124 PetriNetUnfolderBase]: 30/532 cut-off events. [2024-11-20 13:54:02,883 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-20 13:54:02,893 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. [2024-11-20 13:54:02,894 INFO L82 GeneralOperation]: Start removeDead. Operand has 511 places, 534 transitions, 1082 flow [2024-11-20 13:54:02,906 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 490 places, 512 transitions, 1036 flow [2024-11-20 13:54:02,919 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:54:02,929 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;@1909240e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:54:02,930 INFO L334 AbstractCegarLoop]: Starting to check reachability of 70 error locations. [2024-11-20 13:54:02,936 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:54:02,936 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2024-11-20 13:54:02,936 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:54:02,937 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:54:02,937 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] [2024-11-20 13:54:02,938 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)] === [2024-11-20 13:54:02,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:54:02,944 INFO L85 PathProgramCache]: Analyzing trace with hash 770404757, now seen corresponding path program 1 times [2024-11-20 13:54:02,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:54:02,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306214396] [2024-11-20 13:54:02,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:54:02,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:54:03,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:54:03,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:54:03,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:54:03,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306214396] [2024-11-20 13:54:03,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306214396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:54:03,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:54:03,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:54:03,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971954583] [2024-11-20 13:54:03,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:54:03,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:54:03,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:54:03,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:54:03,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:54:03,253 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 495 out of 534 [2024-11-20 13:54:03,262 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) [2024-11-20 13:54:03,262 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:54:03,262 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 495 of 534 [2024-11-20 13:54:03,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:54:03,341 INFO L124 PetriNetUnfolderBase]: 13/497 cut-off events. [2024-11-20 13:54:03,341 INFO L125 PetriNetUnfolderBase]: For 12/13 co-relation queries the response was YES. [2024-11-20 13:54:03,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 530 conditions, 497 events. 13/497 cut-off events. For 12/13 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. [2024-11-20 13:54:03,346 INFO L140 encePairwiseOnDemand]: 513/534 looper letters, 15 selfloop transitions, 2 changer transitions 11/493 dead transitions. [2024-11-20 13:54:03,346 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 491 places, 493 transitions, 1032 flow [2024-11-20 13:54:03,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:54:03,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:54:03,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1521 transitions. [2024-11-20 13:54:03,372 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.949438202247191 [2024-11-20 13:54:03,375 INFO L175 Difference]: Start difference. First operand has 490 places, 512 transitions, 1036 flow. Second operand 3 states and 1521 transitions. [2024-11-20 13:54:03,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 491 places, 493 transitions, 1032 flow [2024-11-20 13:54:03,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 487 places, 493 transitions, 1024 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-20 13:54:03,391 INFO L231 Difference]: Finished difference. Result has 487 places, 482 transitions, 972 flow [2024-11-20 13:54:03,396 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} [2024-11-20 13:54:03,403 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -3 predicate places. [2024-11-20 13:54:03,404 INFO L471 AbstractCegarLoop]: Abstraction has has 487 places, 482 transitions, 972 flow [2024-11-20 13:54:03,405 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) [2024-11-20 13:54:03,406 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:54:03,406 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] [2024-11-20 13:54:03,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 13:54:03,407 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)] === [2024-11-20 13:54:03,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:54:03,408 INFO L85 PathProgramCache]: Analyzing trace with hash -2105081766, now seen corresponding path program 1 times [2024-11-20 13:54:03,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:54:03,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273474885] [2024-11-20 13:54:03,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:54:03,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:54:03,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:54:03,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:54:03,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:54:03,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273474885] [2024-11-20 13:54:03,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273474885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:54:03,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:54:03,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:54:03,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970365884] [2024-11-20 13:54:03,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:54:03,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:54:03,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:54:03,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:54:03,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:54:03,526 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 485 out of 534 [2024-11-20 13:54:03,529 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) [2024-11-20 13:54:03,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:54:03,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 485 of 534 [2024-11-20 13:54:03,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:54:03,689 INFO L124 PetriNetUnfolderBase]: 18/533 cut-off events. [2024-11-20 13:54:03,690 INFO L125 PetriNetUnfolderBase]: For 7/8 co-relation queries the response was YES. [2024-11-20 13:54:03,693 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. [2024-11-20 13:54:03,695 INFO L140 encePairwiseOnDemand]: 525/534 looper letters, 20 selfloop transitions, 1 changer transitions 0/474 dead transitions. [2024-11-20 13:54:03,695 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 470 places, 474 transitions, 998 flow [2024-11-20 13:54:03,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:54:03,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:54:03,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1484 transitions. [2024-11-20 13:54:03,701 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9263420724094882 [2024-11-20 13:54:03,701 INFO L175 Difference]: Start difference. First operand has 487 places, 482 transitions, 972 flow. Second operand 3 states and 1484 transitions. [2024-11-20 13:54:03,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 470 places, 474 transitions, 998 flow [2024-11-20 13:54:03,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 474 transitions, 994 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:54:03,712 INFO L231 Difference]: Finished difference. Result has 468 places, 474 transitions, 954 flow [2024-11-20 13:54:03,713 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} [2024-11-20 13:54:03,714 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -22 predicate places. [2024-11-20 13:54:03,714 INFO L471 AbstractCegarLoop]: Abstraction has has 468 places, 474 transitions, 954 flow [2024-11-20 13:54:03,715 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) [2024-11-20 13:54:03,716 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:54:03,716 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] [2024-11-20 13:54:03,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 13:54:03,717 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)] === [2024-11-20 13:54:03,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:54:03,717 INFO L85 PathProgramCache]: Analyzing trace with hash -705021752, now seen corresponding path program 1 times [2024-11-20 13:54:03,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:54:03,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587416355] [2024-11-20 13:54:03,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:54:03,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:54:03,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:54:03,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:54:03,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:54:03,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587416355] [2024-11-20 13:54:03,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587416355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:54:03,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:54:03,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:54:03,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218510753] [2024-11-20 13:54:03,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:54:03,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:54:03,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:54:03,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:54:03,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:54:03,878 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 494 out of 534 [2024-11-20 13:54:03,881 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) [2024-11-20 13:54:03,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:54:03,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 494 of 534 [2024-11-20 13:54:03,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:54:03,952 INFO L124 PetriNetUnfolderBase]: 12/475 cut-off events. [2024-11-20 13:54:03,953 INFO L125 PetriNetUnfolderBase]: For 2/3 co-relation queries the response was YES. [2024-11-20 13:54:03,954 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. [2024-11-20 13:54:03,956 INFO L140 encePairwiseOnDemand]: 531/534 looper letters, 16 selfloop transitions, 2 changer transitions 0/473 dead transitions. [2024-11-20 13:54:03,956 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 473 transitions, 988 flow [2024-11-20 13:54:03,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:54:03,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:54:03,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1501 transitions. [2024-11-20 13:54:03,960 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9369538077403246 [2024-11-20 13:54:03,960 INFO L175 Difference]: Start difference. First operand has 468 places, 474 transitions, 954 flow. Second operand 3 states and 1501 transitions. [2024-11-20 13:54:03,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 473 transitions, 988 flow [2024-11-20 13:54:03,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 473 transitions, 987 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:54:03,969 INFO L231 Difference]: Finished difference. Result has 468 places, 473 transitions, 955 flow [2024-11-20 13:54:03,969 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} [2024-11-20 13:54:03,971 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -22 predicate places. [2024-11-20 13:54:03,971 INFO L471 AbstractCegarLoop]: Abstraction has has 468 places, 473 transitions, 955 flow [2024-11-20 13:54:03,972 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) [2024-11-20 13:54:03,972 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:54:03,973 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] [2024-11-20 13:54:03,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 13:54:03,973 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)] === [2024-11-20 13:54:03,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:54:03,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1793195277, now seen corresponding path program 1 times [2024-11-20 13:54:03,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:54:03,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237759448] [2024-11-20 13:54:03,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:54:03,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:54:03,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:54:04,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:54:04,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:54:04,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237759448] [2024-11-20 13:54:04,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237759448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:54:04,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:54:04,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:54:04,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802975694] [2024-11-20 13:54:04,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:54:04,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:54:04,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:54:04,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:54:04,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:54:04,084 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 482 out of 534 [2024-11-20 13:54:04,086 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) [2024-11-20 13:54:04,086 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:54:04,086 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 482 of 534 [2024-11-20 13:54:04,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:54:04,162 INFO L124 PetriNetUnfolderBase]: 15/519 cut-off events. [2024-11-20 13:54:04,162 INFO L125 PetriNetUnfolderBase]: For 5/6 co-relation queries the response was YES. [2024-11-20 13:54:04,164 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. [2024-11-20 13:54:04,166 INFO L140 encePairwiseOnDemand]: 524/534 looper letters, 22 selfloop transitions, 1 changer transitions 0/464 dead transitions. [2024-11-20 13:54:04,166 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 464 transitions, 983 flow [2024-11-20 13:54:04,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:54:04,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:54:04,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1478 transitions. [2024-11-20 13:54:04,169 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9225967540574282 [2024-11-20 13:54:04,169 INFO L175 Difference]: Start difference. First operand has 468 places, 473 transitions, 955 flow. Second operand 3 states and 1478 transitions. [2024-11-20 13:54:04,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 461 places, 464 transitions, 983 flow [2024-11-20 13:54:04,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 464 transitions, 979 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:54:04,179 INFO L231 Difference]: Finished difference. Result has 459 places, 464 transitions, 935 flow [2024-11-20 13:54:04,181 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} [2024-11-20 13:54:04,182 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -31 predicate places. [2024-11-20 13:54:04,182 INFO L471 AbstractCegarLoop]: Abstraction has has 459 places, 464 transitions, 935 flow [2024-11-20 13:54:04,183 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) [2024-11-20 13:54:04,184 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:54:04,184 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] [2024-11-20 13:54:04,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 13:54:04,184 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)] === [2024-11-20 13:54:04,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:54:04,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1687939895, now seen corresponding path program 1 times [2024-11-20 13:54:04,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:54:04,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238190232] [2024-11-20 13:54:04,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:54:04,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:54:04,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:54:04,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:54:04,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:54:04,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238190232] [2024-11-20 13:54:04,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238190232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:54:04,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:54:04,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:54:04,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008263260] [2024-11-20 13:54:04,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:54:04,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:54:04,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:54:04,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:54:04,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:54:04,269 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 500 out of 534 [2024-11-20 13:54:04,271 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) [2024-11-20 13:54:04,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:54:04,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 500 of 534 [2024-11-20 13:54:04,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:54:04,345 INFO L124 PetriNetUnfolderBase]: 13/499 cut-off events. [2024-11-20 13:54:04,345 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 13:54:04,347 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. [2024-11-20 13:54:04,348 INFO L140 encePairwiseOnDemand]: 531/534 looper letters, 10 selfloop transitions, 2 changer transitions 0/463 dead transitions. [2024-11-20 13:54:04,349 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 463 transitions, 957 flow [2024-11-20 13:54:04,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:54:04,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:54:04,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1513 transitions. [2024-11-20 13:54:04,352 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9444444444444444 [2024-11-20 13:54:04,352 INFO L175 Difference]: Start difference. First operand has 459 places, 464 transitions, 935 flow. Second operand 3 states and 1513 transitions. [2024-11-20 13:54:04,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 463 transitions, 957 flow [2024-11-20 13:54:04,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 463 transitions, 956 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:54:04,361 INFO L231 Difference]: Finished difference. Result has 459 places, 463 transitions, 936 flow [2024-11-20 13:54:04,362 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} [2024-11-20 13:54:04,363 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -31 predicate places. [2024-11-20 13:54:04,366 INFO L471 AbstractCegarLoop]: Abstraction has has 459 places, 463 transitions, 936 flow [2024-11-20 13:54:04,367 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) [2024-11-20 13:54:04,367 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:54:04,367 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] [2024-11-20 13:54:04,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 13:54:04,367 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)] === [2024-11-20 13:54:04,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:54:04,368 INFO L85 PathProgramCache]: Analyzing trace with hash 60480518, now seen corresponding path program 1 times [2024-11-20 13:54:04,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:54:04,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575292226] [2024-11-20 13:54:04,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:54:04,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:54:04,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:54:04,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:54:04,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:54:04,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575292226] [2024-11-20 13:54:04,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575292226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:54:04,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:54:04,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:54:04,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616035260] [2024-11-20 13:54:04,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:54:04,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:54:04,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:54:04,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:54:04,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:54:04,457 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 500 out of 534 [2024-11-20 13:54:04,459 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) [2024-11-20 13:54:04,459 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:54:04,459 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 500 of 534 [2024-11-20 13:54:04,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:54:04,514 INFO L124 PetriNetUnfolderBase]: 14/496 cut-off events. [2024-11-20 13:54:04,514 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-20 13:54:04,515 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. [2024-11-20 13:54:04,516 INFO L140 encePairwiseOnDemand]: 530/534 looper letters, 10 selfloop transitions, 1 changer transitions 0/460 dead transitions. [2024-11-20 13:54:04,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 460 transitions, 952 flow [2024-11-20 13:54:04,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:54:04,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:54:04,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1514 transitions. [2024-11-20 13:54:04,520 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9450686641697877 [2024-11-20 13:54:04,520 INFO L175 Difference]: Start difference. First operand has 459 places, 463 transitions, 936 flow. Second operand 3 states and 1514 transitions. [2024-11-20 13:54:04,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 460 transitions, 952 flow [2024-11-20 13:54:04,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 456 places, 460 transitions, 948 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:54:04,528 INFO L231 Difference]: Finished difference. Result has 456 places, 460 transitions, 928 flow [2024-11-20 13:54:04,529 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} [2024-11-20 13:54:04,529 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -34 predicate places. [2024-11-20 13:54:04,530 INFO L471 AbstractCegarLoop]: Abstraction has has 456 places, 460 transitions, 928 flow [2024-11-20 13:54:04,531 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) [2024-11-20 13:54:04,531 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:54:04,531 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] [2024-11-20 13:54:04,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 13:54:04,531 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)] === [2024-11-20 13:54:04,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:54:04,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1273962220, now seen corresponding path program 1 times [2024-11-20 13:54:04,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:54:04,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538454162] [2024-11-20 13:54:04,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:54:04,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:54:04,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:54:05,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:54:05,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:54:05,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538454162] [2024-11-20 13:54:05,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538454162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:54:05,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:54:05,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:54:05,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645227531] [2024-11-20 13:54:05,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:54:05,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:54:05,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:54:05,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:54:05,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:54:05,567 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 432 out of 534 [2024-11-20 13:54:05,570 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) [2024-11-20 13:54:05,570 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:54:05,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 432 of 534 [2024-11-20 13:54:05,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:54:05,829 INFO L124 PetriNetUnfolderBase]: 172/1180 cut-off events. [2024-11-20 13:54:05,829 INFO L125 PetriNetUnfolderBase]: For 27/28 co-relation queries the response was YES. [2024-11-20 13:54:05,832 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. [2024-11-20 13:54:05,837 INFO L140 encePairwiseOnDemand]: 516/534 looper letters, 64 selfloop transitions, 15 changer transitions 0/457 dead transitions. [2024-11-20 13:54:05,838 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 457 transitions, 1080 flow [2024-11-20 13:54:05,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:54:05,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:54:05,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2674 transitions. [2024-11-20 13:54:05,843 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.83458177278402 [2024-11-20 13:54:05,843 INFO L175 Difference]: Start difference. First operand has 456 places, 460 transitions, 928 flow. Second operand 6 states and 2674 transitions. [2024-11-20 13:54:05,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 457 transitions, 1080 flow [2024-11-20 13:54:05,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 457 transitions, 1079 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:54:05,851 INFO L231 Difference]: Finished difference. Result has 457 places, 457 transitions, 951 flow [2024-11-20 13:54:05,852 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} [2024-11-20 13:54:05,852 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -33 predicate places. [2024-11-20 13:54:05,853 INFO L471 AbstractCegarLoop]: Abstraction has has 457 places, 457 transitions, 951 flow [2024-11-20 13:54:05,855 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) [2024-11-20 13:54:05,855 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:54:05,855 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] [2024-11-20 13:54:05,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 13:54:05,856 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)] === [2024-11-20 13:54:05,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:54:05,856 INFO L85 PathProgramCache]: Analyzing trace with hash 482642813, now seen corresponding path program 1 times [2024-11-20 13:54:05,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:54:05,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383579887] [2024-11-20 13:54:05,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:54:05,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:54:05,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:54:05,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:54:05,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:54:05,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383579887] [2024-11-20 13:54:05,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383579887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:54:05,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:54:05,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:54:05,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714493300] [2024-11-20 13:54:05,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:54:05,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:54:05,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:54:05,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:54:05,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:54:05,937 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 501 out of 534 [2024-11-20 13:54:05,939 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) [2024-11-20 13:54:05,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:54:05,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 501 of 534 [2024-11-20 13:54:05,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:54:06,004 INFO L124 PetriNetUnfolderBase]: 14/492 cut-off events. [2024-11-20 13:54:06,004 INFO L125 PetriNetUnfolderBase]: For 2/3 co-relation queries the response was YES. [2024-11-20 13:54:06,005 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. [2024-11-20 13:54:06,007 INFO L140 encePairwiseOnDemand]: 531/534 looper letters, 9 selfloop transitions, 2 changer transitions 0/456 dead transitions. [2024-11-20 13:54:06,007 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 456 transitions, 971 flow [2024-11-20 13:54:06,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:54:06,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:54:06,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1515 transitions. [2024-11-20 13:54:06,010 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9456928838951311 [2024-11-20 13:54:06,010 INFO L175 Difference]: Start difference. First operand has 457 places, 457 transitions, 951 flow. Second operand 3 states and 1515 transitions. [2024-11-20 13:54:06,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 456 transitions, 971 flow [2024-11-20 13:54:06,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 456 transitions, 941 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 13:54:06,018 INFO L231 Difference]: Finished difference. Result has 453 places, 456 transitions, 923 flow [2024-11-20 13:54:06,018 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} [2024-11-20 13:54:06,019 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -37 predicate places. [2024-11-20 13:54:06,019 INFO L471 AbstractCegarLoop]: Abstraction has has 453 places, 456 transitions, 923 flow [2024-11-20 13:54:06,020 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) [2024-11-20 13:54:06,020 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:54:06,020 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:54:06,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 13:54:06,021 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)] === [2024-11-20 13:54:06,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:54:06,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1160531727, now seen corresponding path program 1 times [2024-11-20 13:54:06,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:54:06,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130136798] [2024-11-20 13:54:06,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:54:06,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:54:06,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:54:06,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:54:06,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:54:06,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130136798] [2024-11-20 13:54:06,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130136798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:54:06,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:54:06,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:54:06,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169421914] [2024-11-20 13:54:06,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:54:06,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:54:06,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:54:06,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:54:06,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:54:06,083 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 501 out of 534 [2024-11-20 13:54:06,086 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) [2024-11-20 13:54:06,086 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:54:06,086 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 501 of 534 [2024-11-20 13:54:06,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:54:06,138 INFO L124 PetriNetUnfolderBase]: 16/516 cut-off events. [2024-11-20 13:54:06,138 INFO L125 PetriNetUnfolderBase]: For 2/3 co-relation queries the response was YES. [2024-11-20 13:54:06,139 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. [2024-11-20 13:54:06,141 INFO L140 encePairwiseOnDemand]: 531/534 looper letters, 9 selfloop transitions, 2 changer transitions 0/455 dead transitions. [2024-11-20 13:54:06,141 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 455 transitions, 943 flow [2024-11-20 13:54:06,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:54:06,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:54:06,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1515 transitions. [2024-11-20 13:54:06,144 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9456928838951311 [2024-11-20 13:54:06,144 INFO L175 Difference]: Start difference. First operand has 453 places, 456 transitions, 923 flow. Second operand 3 states and 1515 transitions. [2024-11-20 13:54:06,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 455 transitions, 943 flow [2024-11-20 13:54:06,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 455 transitions, 939 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:54:06,152 INFO L231 Difference]: Finished difference. Result has 452 places, 455 transitions, 921 flow [2024-11-20 13:54:06,152 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} [2024-11-20 13:54:06,153 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -38 predicate places. [2024-11-20 13:54:06,153 INFO L471 AbstractCegarLoop]: Abstraction has has 452 places, 455 transitions, 921 flow [2024-11-20 13:54:06,154 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) [2024-11-20 13:54:06,155 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:54:06,155 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] [2024-11-20 13:54:06,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 13:54:06,155 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)] === [2024-11-20 13:54:06,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:54:06,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1721359127, now seen corresponding path program 1 times [2024-11-20 13:54:06,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:54:06,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306414282] [2024-11-20 13:54:06,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:54:06,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:54:06,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:54:06,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:54:06,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:54:06,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306414282] [2024-11-20 13:54:06,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306414282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:54:06,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:54:06,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:54:06,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497719498] [2024-11-20 13:54:06,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:54:06,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:54:06,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:54:06,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:54:06,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:54:06,229 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 500 out of 534 [2024-11-20 13:54:06,231 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) [2024-11-20 13:54:06,231 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:54:06,231 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 500 of 534 [2024-11-20 13:54:06,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:54:06,286 INFO L124 PetriNetUnfolderBase]: 12/456 cut-off events. [2024-11-20 13:54:06,286 INFO L125 PetriNetUnfolderBase]: For 2/3 co-relation queries the response was YES. [2024-11-20 13:54:06,287 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. [2024-11-20 13:54:06,288 INFO L140 encePairwiseOnDemand]: 531/534 looper letters, 10 selfloop transitions, 2 changer transitions 0/454 dead transitions. [2024-11-20 13:54:06,288 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 454 transitions, 943 flow [2024-11-20 13:54:06,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:54:06,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:54:06,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1513 transitions. [2024-11-20 13:54:06,291 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9444444444444444 [2024-11-20 13:54:06,291 INFO L175 Difference]: Start difference. First operand has 452 places, 455 transitions, 921 flow. Second operand 3 states and 1513 transitions. [2024-11-20 13:54:06,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 454 transitions, 943 flow [2024-11-20 13:54:06,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 454 transitions, 939 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:54:06,300 INFO L231 Difference]: Finished difference. Result has 451 places, 454 transitions, 919 flow [2024-11-20 13:54:06,301 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} [2024-11-20 13:54:06,301 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -39 predicate places. [2024-11-20 13:54:06,302 INFO L471 AbstractCegarLoop]: Abstraction has has 451 places, 454 transitions, 919 flow [2024-11-20 13:54:06,303 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) [2024-11-20 13:54:06,303 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:54:06,303 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] [2024-11-20 13:54:06,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 13:54:06,303 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)] === [2024-11-20 13:54:06,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:54:06,304 INFO L85 PathProgramCache]: Analyzing trace with hash 991207939, now seen corresponding path program 1 times [2024-11-20 13:54:06,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:54:06,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277981599] [2024-11-20 13:54:06,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:54:06,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:54:06,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:54:06,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:54:06,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:54:06,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277981599] [2024-11-20 13:54:06,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277981599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:54:06,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:54:06,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:54:06,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249612199] [2024-11-20 13:54:06,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:54:06,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 13:54:06,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:54:06,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 13:54:06,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 13:54:06,582 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 497 out of 534 [2024-11-20 13:54:06,586 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) [2024-11-20 13:54:06,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:54:06,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 497 of 534 [2024-11-20 13:54:06,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:54:06,690 INFO L124 PetriNetUnfolderBase]: 18/788 cut-off events. [2024-11-20 13:54:06,690 INFO L125 PetriNetUnfolderBase]: For 2/4 co-relation queries the response was YES. [2024-11-20 13:54:06,692 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. [2024-11-20 13:54:06,694 INFO L140 encePairwiseOnDemand]: 526/534 looper letters, 16 selfloop transitions, 7 changer transitions 0/461 dead transitions. [2024-11-20 13:54:06,694 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 461 transitions, 983 flow [2024-11-20 13:54:06,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 13:54:06,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 13:54:06,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2509 transitions. [2024-11-20 13:54:06,702 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9397003745318352 [2024-11-20 13:54:06,703 INFO L175 Difference]: Start difference. First operand has 451 places, 454 transitions, 919 flow. Second operand 5 states and 2509 transitions. [2024-11-20 13:54:06,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 461 transitions, 983 flow [2024-11-20 13:54:06,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 461 transitions, 979 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:54:06,712 INFO L231 Difference]: Finished difference. Result has 455 places, 456 transitions, 946 flow [2024-11-20 13:54:06,713 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} [2024-11-20 13:54:06,713 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -35 predicate places. [2024-11-20 13:54:06,713 INFO L471 AbstractCegarLoop]: Abstraction has has 455 places, 456 transitions, 946 flow [2024-11-20 13:54:06,715 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) [2024-11-20 13:54:06,715 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:54:06,715 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] [2024-11-20 13:54:06,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 13:54:06,716 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)] === [2024-11-20 13:54:06,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:54:06,716 INFO L85 PathProgramCache]: Analyzing trace with hash 719457379, now seen corresponding path program 1 times [2024-11-20 13:54:06,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:54:06,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243788142] [2024-11-20 13:54:06,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:54:06,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:54:06,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:54:06,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:54:06,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:54:06,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243788142] [2024-11-20 13:54:06,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243788142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:54:06,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:54:06,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:54:06,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352766462] [2024-11-20 13:54:06,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:54:06,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:54:06,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:54:06,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:54:06,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:54:06,794 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 500 out of 534 [2024-11-20 13:54:06,796 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) [2024-11-20 13:54:06,797 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:54:06,797 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 500 of 534 [2024-11-20 13:54:06,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:54:06,945 INFO L124 PetriNetUnfolderBase]: 39/1132 cut-off events. [2024-11-20 13:54:06,945 INFO L125 PetriNetUnfolderBase]: For 12/15 co-relation queries the response was YES. [2024-11-20 13:54:06,946 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. [2024-11-20 13:54:06,950 INFO L140 encePairwiseOnDemand]: 528/534 looper letters, 15 selfloop transitions, 3 changer transitions 0/460 dead transitions. [2024-11-20 13:54:06,950 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 460 transitions, 994 flow [2024-11-20 13:54:06,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:54:06,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:54:06,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1521 transitions. [2024-11-20 13:54:06,954 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.949438202247191 [2024-11-20 13:54:06,954 INFO L175 Difference]: Start difference. First operand has 455 places, 456 transitions, 946 flow. Second operand 3 states and 1521 transitions. [2024-11-20 13:54:06,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 460 transitions, 994 flow [2024-11-20 13:54:06,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 460 transitions, 987 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:54:06,961 INFO L231 Difference]: Finished difference. Result has 453 places, 456 transitions, 954 flow [2024-11-20 13:54:06,962 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} [2024-11-20 13:54:06,964 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -37 predicate places. [2024-11-20 13:54:06,964 INFO L471 AbstractCegarLoop]: Abstraction has has 453 places, 456 transitions, 954 flow [2024-11-20 13:54:06,965 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) [2024-11-20 13:54:06,965 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:54:06,965 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] [2024-11-20 13:54:06,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 13:54:06,966 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-20 13:54:06,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:54:06,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1487284237, now seen corresponding path program 1 times [2024-11-20 13:54:06,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:54:06,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121805312] [2024-11-20 13:54:06,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:54:06,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:54:06,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:54:07,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:54:07,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:54:07,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121805312] [2024-11-20 13:54:07,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121805312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:54:07,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:54:07,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:54:07,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252043341] [2024-11-20 13:54:07,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:54:07,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:54:07,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:54:07,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:54:07,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:54:07,044 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 534 [2024-11-20 13:54:07,046 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) [2024-11-20 13:54:07,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:54:07,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 534 [2024-11-20 13:54:07,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:54:07,197 INFO L124 PetriNetUnfolderBase]: 55/1376 cut-off events. [2024-11-20 13:54:07,197 INFO L125 PetriNetUnfolderBase]: For 10/21 co-relation queries the response was YES. [2024-11-20 13:54:07,201 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. [2024-11-20 13:54:07,205 INFO L140 encePairwiseOnDemand]: 530/534 looper letters, 12 selfloop transitions, 2 changer transitions 0/459 dead transitions. [2024-11-20 13:54:07,205 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 459 transitions, 991 flow [2024-11-20 13:54:07,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:54:07,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:54:07,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1525 transitions. [2024-11-20 13:54:07,209 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9519350811485643 [2024-11-20 13:54:07,209 INFO L175 Difference]: Start difference. First operand has 453 places, 456 transitions, 954 flow. Second operand 3 states and 1525 transitions. [2024-11-20 13:54:07,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 459 transitions, 991 flow [2024-11-20 13:54:07,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 459 transitions, 991 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:54:07,217 INFO L231 Difference]: Finished difference. Result has 454 places, 456 transitions, 964 flow [2024-11-20 13:54:07,217 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} [2024-11-20 13:54:07,218 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -36 predicate places. [2024-11-20 13:54:07,218 INFO L471 AbstractCegarLoop]: Abstraction has has 454 places, 456 transitions, 964 flow [2024-11-20 13:54:07,220 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) [2024-11-20 13:54:07,220 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:54:07,220 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] [2024-11-20 13:54:07,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 13:54:07,220 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-20 13:54:07,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:54:07,221 INFO L85 PathProgramCache]: Analyzing trace with hash -943918097, now seen corresponding path program 1 times [2024-11-20 13:54:07,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:54:07,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772742429] [2024-11-20 13:54:07,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:54:07,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:54:07,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:54:07,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:54:07,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:54:07,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772742429] [2024-11-20 13:54:07,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772742429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:54:07,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:54:07,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:54:07,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494262958] [2024-11-20 13:54:07,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:54:07,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:54:07,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:54:07,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:54:07,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:54:07,285 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 534 [2024-11-20 13:54:07,287 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) [2024-11-20 13:54:07,287 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:54:07,287 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 534 [2024-11-20 13:54:07,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:54:07,538 INFO L124 PetriNetUnfolderBase]: 95/2044 cut-off events. [2024-11-20 13:54:07,539 INFO L125 PetriNetUnfolderBase]: For 20/23 co-relation queries the response was YES. [2024-11-20 13:54:07,543 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. [2024-11-20 13:54:07,547 INFO L140 encePairwiseOnDemand]: 530/534 looper letters, 12 selfloop transitions, 2 changer transitions 0/459 dead transitions. [2024-11-20 13:54:07,548 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 459 transitions, 1001 flow [2024-11-20 13:54:07,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:54:07,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:54:07,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1525 transitions. [2024-11-20 13:54:07,551 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9519350811485643 [2024-11-20 13:54:07,551 INFO L175 Difference]: Start difference. First operand has 454 places, 456 transitions, 964 flow. Second operand 3 states and 1525 transitions. [2024-11-20 13:54:07,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 459 transitions, 1001 flow [2024-11-20 13:54:07,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 459 transitions, 1001 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:54:07,558 INFO L231 Difference]: Finished difference. Result has 455 places, 456 transitions, 974 flow [2024-11-20 13:54:07,559 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} [2024-11-20 13:54:07,559 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -35 predicate places. [2024-11-20 13:54:07,559 INFO L471 AbstractCegarLoop]: Abstraction has has 455 places, 456 transitions, 974 flow [2024-11-20 13:54:07,560 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) [2024-11-20 13:54:07,560 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:54:07,560 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] [2024-11-20 13:54:07,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 13:54:07,561 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-20 13:54:07,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:54:07,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1987427533, now seen corresponding path program 1 times [2024-11-20 13:54:07,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:54:07,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223605997] [2024-11-20 13:54:07,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:54:07,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:54:07,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:54:07,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:54:07,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:54:07,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223605997] [2024-11-20 13:54:07,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223605997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:54:07,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:54:07,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 13:54:07,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121430744] [2024-11-20 13:54:07,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:54:07,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 13:54:07,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:54:07,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 13:54:07,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-20 13:54:08,040 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 477 out of 534 [2024-11-20 13:54:08,044 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) [2024-11-20 13:54:08,044 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:54:08,044 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 477 of 534 [2024-11-20 13:54:08,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:54:08,576 INFO L124 PetriNetUnfolderBase]: 123/2878 cut-off events. [2024-11-20 13:54:08,577 INFO L125 PetriNetUnfolderBase]: For 19/37 co-relation queries the response was YES. [2024-11-20 13:54:08,582 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. [2024-11-20 13:54:08,588 INFO L140 encePairwiseOnDemand]: 513/534 looper letters, 44 selfloop transitions, 28 changer transitions 0/491 dead transitions. [2024-11-20 13:54:08,588 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 491 transitions, 1193 flow [2024-11-20 13:54:08,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 13:54:08,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-20 13:54:08,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4843 transitions. [2024-11-20 13:54:08,599 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9069288389513108 [2024-11-20 13:54:08,599 INFO L175 Difference]: Start difference. First operand has 455 places, 456 transitions, 974 flow. Second operand 10 states and 4843 transitions. [2024-11-20 13:54:08,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 491 transitions, 1193 flow [2024-11-20 13:54:08,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 464 places, 491 transitions, 1193 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:54:08,609 INFO L231 Difference]: Finished difference. Result has 468 places, 472 transitions, 1103 flow [2024-11-20 13:54:08,610 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} [2024-11-20 13:54:08,610 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -22 predicate places. [2024-11-20 13:54:08,611 INFO L471 AbstractCegarLoop]: Abstraction has has 468 places, 472 transitions, 1103 flow [2024-11-20 13:54:08,612 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) [2024-11-20 13:54:08,612 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:54:08,612 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] [2024-11-20 13:54:08,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 13:54:08,613 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-20 13:54:08,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:54:08,613 INFO L85 PathProgramCache]: Analyzing trace with hash 2128981058, now seen corresponding path program 1 times [2024-11-20 13:54:08,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:54:08,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637895718] [2024-11-20 13:54:08,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:54:08,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:54:08,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:54:08,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:54:08,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:54:08,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637895718] [2024-11-20 13:54:08,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637895718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:54:08,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:54:08,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:54:08,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725153480] [2024-11-20 13:54:08,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:54:08,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 13:54:08,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:54:08,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 13:54:08,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 13:54:08,843 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 497 out of 534 [2024-11-20 13:54:08,845 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) [2024-11-20 13:54:08,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:54:08,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 497 of 534 [2024-11-20 13:54:08,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:54:09,166 INFO L124 PetriNetUnfolderBase]: 122/2431 cut-off events. [2024-11-20 13:54:09,167 INFO L125 PetriNetUnfolderBase]: For 83/92 co-relation queries the response was YES. [2024-11-20 13:54:09,171 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. [2024-11-20 13:54:09,177 INFO L140 encePairwiseOnDemand]: 526/534 looper letters, 17 selfloop transitions, 7 changer transitions 0/480 dead transitions. [2024-11-20 13:54:09,177 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 472 places, 480 transitions, 1172 flow [2024-11-20 13:54:09,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 13:54:09,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 13:54:09,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2510 transitions. [2024-11-20 13:54:09,182 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9400749063670412 [2024-11-20 13:54:09,182 INFO L175 Difference]: Start difference. First operand has 468 places, 472 transitions, 1103 flow. Second operand 5 states and 2510 transitions. [2024-11-20 13:54:09,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 472 places, 480 transitions, 1172 flow [2024-11-20 13:54:09,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 480 transitions, 1172 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:54:09,190 INFO L231 Difference]: Finished difference. Result has 474 places, 474 transitions, 1134 flow [2024-11-20 13:54:09,191 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} [2024-11-20 13:54:09,191 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -16 predicate places. [2024-11-20 13:54:09,191 INFO L471 AbstractCegarLoop]: Abstraction has has 474 places, 474 transitions, 1134 flow [2024-11-20 13:54:09,192 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) [2024-11-20 13:54:09,192 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:54:09,193 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] [2024-11-20 13:54:09,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 13:54:09,193 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-20 13:54:09,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:54:09,194 INFO L85 PathProgramCache]: Analyzing trace with hash 667475618, now seen corresponding path program 1 times [2024-11-20 13:54:09,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:54:09,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387543245] [2024-11-20 13:54:09,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:54:09,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:54:09,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:54:09,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:54:09,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:54:09,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387543245] [2024-11-20 13:54:09,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387543245] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:54:09,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:54:09,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:54:09,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252657164] [2024-11-20 13:54:09,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:54:09,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 13:54:09,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:54:09,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 13:54:09,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 13:54:09,416 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 498 out of 534 [2024-11-20 13:54:09,419 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) [2024-11-20 13:54:09,419 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:54:09,419 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 498 of 534 [2024-11-20 13:54:09,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:54:09,778 INFO L124 PetriNetUnfolderBase]: 104/2564 cut-off events. [2024-11-20 13:54:09,778 INFO L125 PetriNetUnfolderBase]: For 160/169 co-relation queries the response was YES. [2024-11-20 13:54:09,784 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. [2024-11-20 13:54:09,789 INFO L140 encePairwiseOnDemand]: 525/534 looper letters, 17 selfloop transitions, 12 changer transitions 0/483 dead transitions. [2024-11-20 13:54:09,789 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 483 transitions, 1218 flow [2024-11-20 13:54:09,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:54:09,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:54:09,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3014 transitions. [2024-11-20 13:54:09,795 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9406991260923845 [2024-11-20 13:54:09,796 INFO L175 Difference]: Start difference. First operand has 474 places, 474 transitions, 1134 flow. Second operand 6 states and 3014 transitions. [2024-11-20 13:54:09,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 483 transitions, 1218 flow [2024-11-20 13:54:09,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 477 places, 483 transitions, 1209 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-20 13:54:09,805 INFO L231 Difference]: Finished difference. Result has 481 places, 478 transitions, 1191 flow [2024-11-20 13:54:09,806 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} [2024-11-20 13:54:09,806 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -9 predicate places. [2024-11-20 13:54:09,806 INFO L471 AbstractCegarLoop]: Abstraction has has 481 places, 478 transitions, 1191 flow [2024-11-20 13:54:09,810 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) [2024-11-20 13:54:09,811 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:54:09,811 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] [2024-11-20 13:54:09,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-20 13:54:09,811 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)] === [2024-11-20 13:54:09,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:54:09,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1285029995, now seen corresponding path program 1 times [2024-11-20 13:54:09,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:54:09,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962656384] [2024-11-20 13:54:09,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:54:09,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:54:09,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:54:09,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:54:09,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:54:09,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962656384] [2024-11-20 13:54:09,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962656384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:54:09,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:54:09,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:54:09,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195869511] [2024-11-20 13:54:09,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:54:09,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:54:09,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:54:09,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:54:09,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:54:09,911 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 499 out of 534 [2024-11-20 13:54:09,913 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) [2024-11-20 13:54:09,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:54:09,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 499 of 534 [2024-11-20 13:54:09,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:54:10,213 INFO L124 PetriNetUnfolderBase]: 64/2292 cut-off events. [2024-11-20 13:54:10,214 INFO L125 PetriNetUnfolderBase]: For 119/131 co-relation queries the response was YES. [2024-11-20 13:54:10,218 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. [2024-11-20 13:54:10,228 INFO L140 encePairwiseOnDemand]: 531/534 looper letters, 11 selfloop transitions, 2 changer transitions 0/477 dead transitions. [2024-11-20 13:54:10,229 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 482 places, 477 transitions, 1215 flow [2024-11-20 13:54:10,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:54:10,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:54:10,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1511 transitions. [2024-11-20 13:54:10,232 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9431960049937578 [2024-11-20 13:54:10,232 INFO L175 Difference]: Start difference. First operand has 481 places, 478 transitions, 1191 flow. Second operand 3 states and 1511 transitions. [2024-11-20 13:54:10,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 482 places, 477 transitions, 1215 flow [2024-11-20 13:54:10,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 481 places, 477 transitions, 1206 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-20 13:54:10,240 INFO L231 Difference]: Finished difference. Result has 481 places, 477 transitions, 1184 flow [2024-11-20 13:54:10,241 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} [2024-11-20 13:54:10,241 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -9 predicate places. [2024-11-20 13:54:10,242 INFO L471 AbstractCegarLoop]: Abstraction has has 481 places, 477 transitions, 1184 flow [2024-11-20 13:54:10,244 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) [2024-11-20 13:54:10,244 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:54:10,244 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] [2024-11-20 13:54:10,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-20 13:54:10,245 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)] === [2024-11-20 13:54:10,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:54:10,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1954206685, now seen corresponding path program 1 times [2024-11-20 13:54:10,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:54:10,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931899813] [2024-11-20 13:54:10,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:54:10,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:54:10,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:54:10,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:54:10,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:54:10,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931899813] [2024-11-20 13:54:10,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931899813] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:54:10,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:54:10,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:54:10,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342309497] [2024-11-20 13:54:10,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:54:10,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:54:10,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:54:10,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:54:10,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:54:11,250 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 451 out of 534 [2024-11-20 13:54:11,252 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) [2024-11-20 13:54:11,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:54:11,252 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 451 of 534 [2024-11-20 13:54:11,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:54:11,720 INFO L124 PetriNetUnfolderBase]: 258/3166 cut-off events. [2024-11-20 13:54:11,721 INFO L125 PetriNetUnfolderBase]: For 187/193 co-relation queries the response was YES. [2024-11-20 13:54:11,728 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. [2024-11-20 13:54:11,734 INFO L140 encePairwiseOnDemand]: 528/534 looper letters, 60 selfloop transitions, 5 changer transitions 0/476 dead transitions. [2024-11-20 13:54:11,735 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 485 places, 476 transitions, 1312 flow [2024-11-20 13:54:11,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:54:11,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:54:11,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2768 transitions. [2024-11-20 13:54:11,743 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8639200998751561 [2024-11-20 13:54:11,743 INFO L175 Difference]: Start difference. First operand has 481 places, 477 transitions, 1184 flow. Second operand 6 states and 2768 transitions. [2024-11-20 13:54:11,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 485 places, 476 transitions, 1312 flow [2024-11-20 13:54:11,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 483 places, 476 transitions, 1308 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:54:11,756 INFO L231 Difference]: Finished difference. Result has 483 places, 476 transitions, 1188 flow [2024-11-20 13:54:11,757 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} [2024-11-20 13:54:11,757 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -7 predicate places. [2024-11-20 13:54:11,757 INFO L471 AbstractCegarLoop]: Abstraction has has 483 places, 476 transitions, 1188 flow [2024-11-20 13:54:11,758 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) [2024-11-20 13:54:11,758 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:54:11,758 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] [2024-11-20 13:54:11,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-20 13:54:11,759 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)] === [2024-11-20 13:54:11,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:54:11,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1165846184, now seen corresponding path program 1 times [2024-11-20 13:54:11,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:54:11,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982317432] [2024-11-20 13:54:11,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:54:11,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:54:11,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:54:11,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:54:11,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:54:11,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982317432] [2024-11-20 13:54:11,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982317432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:54:11,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:54:11,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:54:11,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739843297] [2024-11-20 13:54:11,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:54:11,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:54:11,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:54:11,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:54:11,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:54:11,836 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 499 out of 534 [2024-11-20 13:54:11,837 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) [2024-11-20 13:54:11,837 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:54:11,837 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 499 of 534 [2024-11-20 13:54:11,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:54:12,154 INFO L124 PetriNetUnfolderBase]: 64/2277 cut-off events. [2024-11-20 13:54:12,155 INFO L125 PetriNetUnfolderBase]: For 96/108 co-relation queries the response was YES. [2024-11-20 13:54:12,159 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. [2024-11-20 13:54:12,162 INFO L140 encePairwiseOnDemand]: 531/534 looper letters, 11 selfloop transitions, 2 changer transitions 0/475 dead transitions. [2024-11-20 13:54:12,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 484 places, 475 transitions, 1212 flow [2024-11-20 13:54:12,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:54:12,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:54:12,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1511 transitions. [2024-11-20 13:54:12,166 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9431960049937578 [2024-11-20 13:54:12,166 INFO L175 Difference]: Start difference. First operand has 483 places, 476 transitions, 1188 flow. Second operand 3 states and 1511 transitions. [2024-11-20 13:54:12,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 484 places, 475 transitions, 1212 flow [2024-11-20 13:54:12,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 479 places, 475 transitions, 1202 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 13:54:12,174 INFO L231 Difference]: Finished difference. Result has 479 places, 475 transitions, 1180 flow [2024-11-20 13:54:12,175 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} [2024-11-20 13:54:12,175 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -11 predicate places. [2024-11-20 13:54:12,175 INFO L471 AbstractCegarLoop]: Abstraction has has 479 places, 475 transitions, 1180 flow [2024-11-20 13:54:12,176 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) [2024-11-20 13:54:12,176 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:54:12,176 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] [2024-11-20 13:54:12,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-20 13:54:12,176 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)] === [2024-11-20 13:54:12,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:54:12,177 INFO L85 PathProgramCache]: Analyzing trace with hash 468468258, now seen corresponding path program 1 times [2024-11-20 13:54:12,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:54:12,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165395198] [2024-11-20 13:54:12,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:54:12,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:54:12,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:54:12,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:54:12,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:54:12,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165395198] [2024-11-20 13:54:12,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165395198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:54:12,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:54:12,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:54:12,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877931880] [2024-11-20 13:54:12,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:54:12,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:54:12,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:54:12,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:54:12,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:54:12,246 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 497 out of 534 [2024-11-20 13:54:12,247 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) [2024-11-20 13:54:12,247 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:54:12,247 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 497 of 534 [2024-11-20 13:54:12,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:54:12,540 INFO L124 PetriNetUnfolderBase]: 64/2235 cut-off events. [2024-11-20 13:54:12,540 INFO L125 PetriNetUnfolderBase]: For 96/108 co-relation queries the response was YES. [2024-11-20 13:54:12,545 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. [2024-11-20 13:54:12,550 INFO L140 encePairwiseOnDemand]: 529/534 looper letters, 12 selfloop transitions, 1 changer transitions 0/471 dead transitions. [2024-11-20 13:54:12,550 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 477 places, 471 transitions, 1198 flow [2024-11-20 13:54:12,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:54:12,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:54:12,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1508 transitions. [2024-11-20 13:54:12,553 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9413233458177278 [2024-11-20 13:54:12,554 INFO L175 Difference]: Start difference. First operand has 479 places, 475 transitions, 1180 flow. Second operand 3 states and 1508 transitions. [2024-11-20 13:54:12,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 477 places, 471 transitions, 1198 flow [2024-11-20 13:54:12,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 471 transitions, 1194 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:54:12,562 INFO L231 Difference]: Finished difference. Result has 475 places, 471 transitions, 1170 flow [2024-11-20 13:54:12,563 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} [2024-11-20 13:54:12,563 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -15 predicate places. [2024-11-20 13:54:12,564 INFO L471 AbstractCegarLoop]: Abstraction has has 475 places, 471 transitions, 1170 flow [2024-11-20 13:54:12,564 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) [2024-11-20 13:54:12,564 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:54:12,564 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] [2024-11-20 13:54:12,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-20 13:54:12,565 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-20 13:54:12,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:54:12,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1401116803, now seen corresponding path program 1 times [2024-11-20 13:54:12,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:54:12,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657391070] [2024-11-20 13:54:12,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:54:12,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:54:12,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:54:13,059 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-20 13:54:13,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:54:13,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657391070] [2024-11-20 13:54:13,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657391070] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:54:13,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:54:13,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:54:13,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336705688] [2024-11-20 13:54:13,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:54:13,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:54:13,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:54:13,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:54:13,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:54:13,555 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 475 out of 534 [2024-11-20 13:54:13,558 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) [2024-11-20 13:54:13,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:54:13,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 475 of 534 [2024-11-20 13:54:13,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:54:14,165 INFO L124 PetriNetUnfolderBase]: 242/3490 cut-off events. [2024-11-20 13:54:14,165 INFO L125 PetriNetUnfolderBase]: For 192/193 co-relation queries the response was YES. [2024-11-20 13:54:14,176 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. [2024-11-20 13:54:14,184 INFO L140 encePairwiseOnDemand]: 523/534 looper letters, 44 selfloop transitions, 22 changer transitions 0/496 dead transitions. [2024-11-20 13:54:14,184 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 480 places, 496 transitions, 1356 flow [2024-11-20 13:54:14,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:54:14,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:54:14,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2915 transitions. [2024-11-20 13:54:14,191 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9098002496878901 [2024-11-20 13:54:14,191 INFO L175 Difference]: Start difference. First operand has 475 places, 471 transitions, 1170 flow. Second operand 6 states and 2915 transitions. [2024-11-20 13:54:14,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 480 places, 496 transitions, 1356 flow [2024-11-20 13:54:14,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 479 places, 496 transitions, 1355 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:54:14,200 INFO L231 Difference]: Finished difference. Result has 484 places, 492 transitions, 1319 flow [2024-11-20 13:54:14,201 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} [2024-11-20 13:54:14,201 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -6 predicate places. [2024-11-20 13:54:14,202 INFO L471 AbstractCegarLoop]: Abstraction has has 484 places, 492 transitions, 1319 flow [2024-11-20 13:54:14,203 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) [2024-11-20 13:54:14,203 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:54:14,203 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] [2024-11-20 13:54:14,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-20 13:54:14,204 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)] === [2024-11-20 13:54:14,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:54:14,204 INFO L85 PathProgramCache]: Analyzing trace with hash -123318678, now seen corresponding path program 1 times [2024-11-20 13:54:14,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:54:14,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660817641] [2024-11-20 13:54:14,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:54:14,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:54:14,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:54:14,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:54:14,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:54:14,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660817641] [2024-11-20 13:54:14,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660817641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:54:14,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:54:14,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:54:14,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134564825] [2024-11-20 13:54:14,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:54:14,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:54:14,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:54:14,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:54:14,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:54:14,274 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 497 out of 534 [2024-11-20 13:54:14,276 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) [2024-11-20 13:54:14,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:54:14,276 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 497 of 534 [2024-11-20 13:54:14,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:54:14,660 INFO L124 PetriNetUnfolderBase]: 128/2803 cut-off events. [2024-11-20 13:54:14,661 INFO L125 PetriNetUnfolderBase]: For 128/143 co-relation queries the response was YES. [2024-11-20 13:54:14,667 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. [2024-11-20 13:54:14,670 INFO L140 encePairwiseOnDemand]: 527/534 looper letters, 12 selfloop transitions, 3 changer transitions 0/490 dead transitions. [2024-11-20 13:54:14,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 482 places, 490 transitions, 1345 flow [2024-11-20 13:54:14,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:54:14,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:54:14,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1510 transitions. [2024-11-20 13:54:14,674 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9425717852684145 [2024-11-20 13:54:14,674 INFO L175 Difference]: Start difference. First operand has 484 places, 492 transitions, 1319 flow. Second operand 3 states and 1510 transitions. [2024-11-20 13:54:14,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 482 places, 490 transitions, 1345 flow [2024-11-20 13:54:14,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 482 places, 490 transitions, 1345 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:54:14,683 INFO L231 Difference]: Finished difference. Result has 483 places, 490 transitions, 1328 flow [2024-11-20 13:54:14,684 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} [2024-11-20 13:54:14,684 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, -7 predicate places. [2024-11-20 13:54:14,685 INFO L471 AbstractCegarLoop]: Abstraction has has 483 places, 490 transitions, 1328 flow [2024-11-20 13:54:14,685 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) [2024-11-20 13:54:14,685 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:54:14,685 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] [2024-11-20 13:54:14,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-20 13:54:14,686 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-20 13:54:14,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:54:14,686 INFO L85 PathProgramCache]: Analyzing trace with hash -208622012, now seen corresponding path program 1 times [2024-11-20 13:54:14,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:54:14,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090344000] [2024-11-20 13:54:14,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:54:14,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:54:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:54:15,218 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-20 13:54:15,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:54:15,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090344000] [2024-11-20 13:54:15,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090344000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:54:15,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:54:15,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:54:15,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883965943] [2024-11-20 13:54:15,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:54:15,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:54:15,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:54:15,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:54:15,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:54:15,451 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 453 out of 534 [2024-11-20 13:54:15,454 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) [2024-11-20 13:54:15,454 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:54:15,454 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 453 of 534 [2024-11-20 13:54:15,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:54:16,153 INFO L124 PetriNetUnfolderBase]: 575/4337 cut-off events. [2024-11-20 13:54:16,154 INFO L125 PetriNetUnfolderBase]: For 590/615 co-relation queries the response was YES. [2024-11-20 13:54:16,162 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. [2024-11-20 13:54:16,171 INFO L140 encePairwiseOnDemand]: 515/534 looper letters, 85 selfloop transitions, 55 changer transitions 0/547 dead transitions. [2024-11-20 13:54:16,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 488 places, 547 transitions, 1758 flow [2024-11-20 13:54:16,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:54:16,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:54:16,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2837 transitions. [2024-11-20 13:54:16,177 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8854556803995006 [2024-11-20 13:54:16,178 INFO L175 Difference]: Start difference. First operand has 483 places, 490 transitions, 1328 flow. Second operand 6 states and 2837 transitions. [2024-11-20 13:54:16,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 488 places, 547 transitions, 1758 flow [2024-11-20 13:54:16,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 488 places, 547 transitions, 1758 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:54:16,190 INFO L231 Difference]: Finished difference. Result has 493 places, 543 transitions, 1722 flow [2024-11-20 13:54:16,191 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} [2024-11-20 13:54:16,191 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, 3 predicate places. [2024-11-20 13:54:16,191 INFO L471 AbstractCegarLoop]: Abstraction has has 493 places, 543 transitions, 1722 flow [2024-11-20 13:54:16,192 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) [2024-11-20 13:54:16,192 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:54:16,192 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] [2024-11-20 13:54:16,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-20 13:54:16,193 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-20 13:54:16,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:54:16,193 INFO L85 PathProgramCache]: Analyzing trace with hash 120435393, now seen corresponding path program 1 times [2024-11-20 13:54:16,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:54:16,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526177491] [2024-11-20 13:54:16,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:54:16,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:54:16,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:54:16,375 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:54:16,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:54:16,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526177491] [2024-11-20 13:54:16,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526177491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:54:16,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:54:16,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 13:54:16,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496111628] [2024-11-20 13:54:16,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:54:16,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 13:54:16,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:54:16,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 13:54:16,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-20 13:54:16,748 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 477 out of 534 [2024-11-20 13:54:16,751 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) [2024-11-20 13:54:16,751 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:54:16,751 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 477 of 534 [2024-11-20 13:54:16,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:54:17,409 INFO L124 PetriNetUnfolderBase]: 335/4076 cut-off events. [2024-11-20 13:54:17,409 INFO L125 PetriNetUnfolderBase]: For 477/508 co-relation queries the response was YES. [2024-11-20 13:54:17,424 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. [2024-11-20 13:54:17,437 INFO L140 encePairwiseOnDemand]: 521/534 looper letters, 54 selfloop transitions, 18 changer transitions 0/564 dead transitions. [2024-11-20 13:54:17,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 502 places, 564 transitions, 1913 flow [2024-11-20 13:54:17,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 13:54:17,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-20 13:54:17,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4829 transitions. [2024-11-20 13:54:17,447 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9043071161048689 [2024-11-20 13:54:17,448 INFO L175 Difference]: Start difference. First operand has 493 places, 543 transitions, 1722 flow. Second operand 10 states and 4829 transitions. [2024-11-20 13:54:17,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 502 places, 564 transitions, 1913 flow [2024-11-20 13:54:17,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 502 places, 564 transitions, 1881 flow, removed 16 selfloop flow, removed 0 redundant places. [2024-11-20 13:54:17,463 INFO L231 Difference]: Finished difference. Result has 506 places, 554 transitions, 1777 flow [2024-11-20 13:54:17,464 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} [2024-11-20 13:54:17,464 INFO L277 CegarLoopForPetriNet]: 490 programPoint places, 16 predicate places. [2024-11-20 13:54:17,464 INFO L471 AbstractCegarLoop]: Abstraction has has 506 places, 554 transitions, 1777 flow [2024-11-20 13:54:17,465 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) [2024-11-20 13:54:17,466 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:54:17,466 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] [2024-11-20 13:54:17,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-20 13:54:17,466 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)] === [2024-11-20 13:54:17,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:54:17,467 INFO L85 PathProgramCache]: Analyzing trace with hash -675719615, now seen corresponding path program 1 times [2024-11-20 13:54:17,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:54:17,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32524759] [2024-11-20 13:54:17,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:54:17,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:54:17,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat