./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/pthread/queue_ok_longest.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_ok_longest.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 0e9bc4a9a6dcd238ac18925269a0bd7c8c54c2dafb57744151e37b58cf6eab8d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 16:45:02,886 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 16:45:02,939 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-11 16:45:02,943 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 16:45:02,943 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 16:45:02,967 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 16:45:02,968 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 16:45:02,969 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 16:45:02,969 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 16:45:02,970 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 16:45:02,970 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 16:45:02,971 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 16:45:02,971 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 16:45:02,971 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 16:45:02,972 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 16:45:02,972 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 16:45:02,972 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 16:45:02,973 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 16:45:02,973 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 16:45:02,973 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 16:45:02,974 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 16:45:02,974 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 16:45:02,975 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-11 16:45:02,975 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 16:45:02,975 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 16:45:02,975 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 16:45:02,976 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 16:45:02,976 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 16:45:02,976 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 16:45:02,977 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 16:45:02,977 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 16:45:02,977 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 16:45:02,978 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 16:45:02,978 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 16:45:02,978 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 16:45:02,979 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 16:45:02,979 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 16:45:02,979 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 16:45:02,980 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 16:45:02,980 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 16:45:02,980 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 16:45:02,981 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e9bc4a9a6dcd238ac18925269a0bd7c8c54c2dafb57744151e37b58cf6eab8d [2024-10-11 16:45:03,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 16:45:03,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 16:45:03,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 16:45:03,265 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 16:45:03,266 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 16:45:03,268 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_ok_longest.i [2024-10-11 16:45:04,703 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 16:45:04,961 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 16:45:04,962 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_ok_longest.i [2024-10-11 16:45:04,988 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/5aac3ae8f/a57a09444a664690ad52161c9685d1f2/FLAGff1837e0e [2024-10-11 16:45:05,005 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/5aac3ae8f/a57a09444a664690ad52161c9685d1f2 [2024-10-11 16:45:05,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 16:45:05,009 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 16:45:05,011 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 16:45:05,011 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 16:45:05,017 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 16:45:05,018 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:45:05" (1/1) ... [2024-10-11 16:45:05,020 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e07077c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:05, skipping insertion in model container [2024-10-11 16:45:05,020 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:45:05" (1/1) ... [2024-10-11 16:45:05,073 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 16:45:05,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 16:45:05,623 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 16:45:05,692 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 16:45:05,792 INFO L204 MainTranslator]: Completed translation [2024-10-11 16:45:05,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:05 WrapperNode [2024-10-11 16:45:05,795 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 16:45:05,797 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 16:45:05,797 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 16:45:05,797 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 16:45:05,808 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:05" (1/1) ... [2024-10-11 16:45:05,860 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:05" (1/1) ... [2024-10-11 16:45:05,923 INFO L138 Inliner]: procedures = 274, calls = 51, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 374 [2024-10-11 16:45:05,927 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 16:45:05,927 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 16:45:05,928 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 16:45:05,928 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 16:45:05,936 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:05" (1/1) ... [2024-10-11 16:45:05,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:05" (1/1) ... [2024-10-11 16:45:05,946 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:05" (1/1) ... [2024-10-11 16:45:05,947 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:05" (1/1) ... [2024-10-11 16:45:05,986 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:05" (1/1) ... [2024-10-11 16:45:05,990 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:05" (1/1) ... [2024-10-11 16:45:05,997 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:05" (1/1) ... [2024-10-11 16:45:05,999 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:05" (1/1) ... [2024-10-11 16:45:06,004 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 16:45:06,007 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 16:45:06,007 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 16:45:06,007 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 16:45:06,008 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:05" (1/1) ... [2024-10-11 16:45:06,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 16:45:06,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:45:06,052 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 16:45:06,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 16:45:06,102 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-10-11 16:45:06,102 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-10-11 16:45:06,102 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-10-11 16:45:06,102 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-10-11 16:45:06,103 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 16:45:06,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-11 16:45:06,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-11 16:45:06,103 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 16:45:06,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 16:45:06,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-11 16:45:06,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 16:45:06,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 16:45:06,105 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 16:45:06,237 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 16:45:06,239 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 16:45:06,855 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 16:45:06,855 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 16:45:06,899 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 16:45:06,899 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 16:45:06,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:45:06 BoogieIcfgContainer [2024-10-11 16:45:06,900 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 16:45:06,902 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 16:45:06,903 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 16:45:06,906 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 16:45:06,907 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 04:45:05" (1/3) ... [2024-10-11 16:45:06,908 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79f8ae21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:45:06, skipping insertion in model container [2024-10-11 16:45:06,908 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:05" (2/3) ... [2024-10-11 16:45:06,909 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79f8ae21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:45:06, skipping insertion in model container [2024-10-11 16:45:06,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:45:06" (3/3) ... [2024-10-11 16:45:06,911 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_ok_longest.i [2024-10-11 16:45:06,927 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 16:45:06,928 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2024-10-11 16:45:06,928 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 16:45:07,115 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-11 16:45:07,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 425 places, 433 transitions, 880 flow [2024-10-11 16:45:07,330 INFO L124 PetriNetUnfolderBase]: 15/431 cut-off events. [2024-10-11 16:45:07,331 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-11 16:45:07,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 440 conditions, 431 events. 15/431 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 717 event pairs, 0 based on Foata normal form. 0/383 useless extension candidates. Maximal degree in co-relation 311. Up to 3 conditions per place. [2024-10-11 16:45:07,348 INFO L82 GeneralOperation]: Start removeDead. Operand has 425 places, 433 transitions, 880 flow [2024-10-11 16:45:07,358 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 418 places, 426 transitions, 861 flow [2024-10-11 16:45:07,372 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 16:45:07,382 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;@169c46fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 16:45:07,382 INFO L334 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2024-10-11 16:45:07,389 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 16:45:07,389 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2024-10-11 16:45:07,389 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 16:45:07,390 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:07,390 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] [2024-10-11 16:45:07,391 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:07,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:07,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1452446528, now seen corresponding path program 1 times [2024-10-11 16:45:07,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:07,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774017245] [2024-10-11 16:45:07,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:07,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:07,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:07,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:07,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:07,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774017245] [2024-10-11 16:45:07,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774017245] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:07,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:07,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:07,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925331159] [2024-10-11 16:45:07,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:07,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:07,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:07,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:07,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:07,766 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 406 out of 433 [2024-10-11 16:45:07,772 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 426 transitions, 861 flow. Second operand has 3 states, 3 states have (on average 407.3333333333333) internal successors, (1222), 3 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:07,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:07,780 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 406 of 433 [2024-10-11 16:45:07,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:08,032 INFO L124 PetriNetUnfolderBase]: 40/945 cut-off events. [2024-10-11 16:45:08,033 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-10-11 16:45:08,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1018 conditions, 945 events. 40/945 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 4370 event pairs, 19 based on Foata normal form. 13/850 useless extension candidates. Maximal degree in co-relation 881. Up to 52 conditions per place. [2024-10-11 16:45:08,045 INFO L140 encePairwiseOnDemand]: 425/433 looper letters, 13 selfloop transitions, 2 changer transitions 0/411 dead transitions. [2024-10-11 16:45:08,046 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 411 transitions, 861 flow [2024-10-11 16:45:08,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:08,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:08,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1239 transitions. [2024-10-11 16:45:08,068 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.953810623556582 [2024-10-11 16:45:08,071 INFO L175 Difference]: Start difference. First operand has 418 places, 426 transitions, 861 flow. Second operand 3 states and 1239 transitions. [2024-10-11 16:45:08,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 411 transitions, 861 flow [2024-10-11 16:45:08,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 411 transitions, 856 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-11 16:45:08,088 INFO L231 Difference]: Finished difference. Result has 408 places, 411 transitions, 830 flow [2024-10-11 16:45:08,091 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=826, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=830, PETRI_PLACES=408, PETRI_TRANSITIONS=411} [2024-10-11 16:45:08,095 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -10 predicate places. [2024-10-11 16:45:08,095 INFO L471 AbstractCegarLoop]: Abstraction has has 408 places, 411 transitions, 830 flow [2024-10-11 16:45:08,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 407.3333333333333) internal successors, (1222), 3 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:08,096 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:08,096 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] [2024-10-11 16:45:08,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 16:45:08,097 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:08,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:08,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1611174636, now seen corresponding path program 1 times [2024-10-11 16:45:08,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:08,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252865426] [2024-10-11 16:45:08,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:08,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:08,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:08,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:08,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:08,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252865426] [2024-10-11 16:45:08,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252865426] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:08,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:08,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:08,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914167040] [2024-10-11 16:45:08,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:08,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:08,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:08,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:08,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:08,192 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 406 out of 433 [2024-10-11 16:45:08,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 411 transitions, 830 flow. Second operand has 3 states, 3 states have (on average 407.3333333333333) internal successors, (1222), 3 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:08,194 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:08,194 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 406 of 433 [2024-10-11 16:45:08,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:08,417 INFO L124 PetriNetUnfolderBase]: 43/1073 cut-off events. [2024-10-11 16:45:08,418 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-11 16:45:08,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1140 conditions, 1073 events. 43/1073 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 5429 event pairs, 19 based on Foata normal form. 0/955 useless extension candidates. Maximal degree in co-relation 1104. Up to 52 conditions per place. [2024-10-11 16:45:08,428 INFO L140 encePairwiseOnDemand]: 430/433 looper letters, 13 selfloop transitions, 2 changer transitions 0/410 dead transitions. [2024-10-11 16:45:08,429 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 410 transitions, 858 flow [2024-10-11 16:45:08,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:08,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:08,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1234 transitions. [2024-10-11 16:45:08,433 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9499615088529638 [2024-10-11 16:45:08,433 INFO L175 Difference]: Start difference. First operand has 408 places, 411 transitions, 830 flow. Second operand 3 states and 1234 transitions. [2024-10-11 16:45:08,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 410 transitions, 858 flow [2024-10-11 16:45:08,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 410 transitions, 854 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 16:45:08,444 INFO L231 Difference]: Finished difference. Result has 407 places, 410 transitions, 828 flow [2024-10-11 16:45:08,445 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=824, PETRI_DIFFERENCE_MINUEND_PLACES=405, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=828, PETRI_PLACES=407, PETRI_TRANSITIONS=410} [2024-10-11 16:45:08,446 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -11 predicate places. [2024-10-11 16:45:08,446 INFO L471 AbstractCegarLoop]: Abstraction has has 407 places, 410 transitions, 828 flow [2024-10-11 16:45:08,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 407.3333333333333) internal successors, (1222), 3 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:08,447 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:08,448 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] [2024-10-11 16:45:08,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 16:45:08,448 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:08,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:08,450 INFO L85 PathProgramCache]: Analyzing trace with hash -2020235762, now seen corresponding path program 1 times [2024-10-11 16:45:08,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:08,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157328354] [2024-10-11 16:45:08,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:08,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:08,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:09,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:09,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:09,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157328354] [2024-10-11 16:45:09,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157328354] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:09,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:09,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:09,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759701840] [2024-10-11 16:45:09,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:09,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:09,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:09,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:09,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:09,643 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 433 [2024-10-11 16:45:09,645 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 410 transitions, 828 flow. Second operand has 6 states, 6 states have (on average 318.3333333333333) internal successors, (1910), 6 states have internal predecessors, (1910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:09,645 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:09,645 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 433 [2024-10-11 16:45:09,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:11,357 INFO L124 PetriNetUnfolderBase]: 2177/9143 cut-off events. [2024-10-11 16:45:11,357 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2024-10-11 16:45:11,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13244 conditions, 9143 events. 2177/9143 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 79959 event pairs, 1832 based on Foata normal form. 0/8187 useless extension candidates. Maximal degree in co-relation 13204. Up to 4013 conditions per place. [2024-10-11 16:45:11,417 INFO L140 encePairwiseOnDemand]: 427/433 looper letters, 100 selfloop transitions, 5 changer transitions 0/409 dead transitions. [2024-10-11 16:45:11,419 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 409 transitions, 1036 flow [2024-10-11 16:45:11,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:11,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:11,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2008 transitions. [2024-10-11 16:45:11,423 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7729022324865281 [2024-10-11 16:45:11,423 INFO L175 Difference]: Start difference. First operand has 407 places, 410 transitions, 828 flow. Second operand 6 states and 2008 transitions. [2024-10-11 16:45:11,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 409 transitions, 1036 flow [2024-10-11 16:45:11,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 409 transitions, 1032 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 16:45:11,431 INFO L231 Difference]: Finished difference. Result has 409 places, 409 transitions, 832 flow [2024-10-11 16:45:11,431 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=822, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=404, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=832, PETRI_PLACES=409, PETRI_TRANSITIONS=409} [2024-10-11 16:45:11,432 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -9 predicate places. [2024-10-11 16:45:11,432 INFO L471 AbstractCegarLoop]: Abstraction has has 409 places, 409 transitions, 832 flow [2024-10-11 16:45:11,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 318.3333333333333) internal successors, (1910), 6 states have internal predecessors, (1910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:11,434 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:11,434 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] [2024-10-11 16:45:11,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 16:45:11,434 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:11,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:11,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1817878975, now seen corresponding path program 1 times [2024-10-11 16:45:11,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:11,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275801522] [2024-10-11 16:45:11,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:11,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:11,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:11,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:11,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:11,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275801522] [2024-10-11 16:45:11,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275801522] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:11,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:11,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:11,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545413042] [2024-10-11 16:45:11,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:11,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:11,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:11,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:11,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:12,458 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 433 [2024-10-11 16:45:12,461 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 409 transitions, 832 flow. Second operand has 6 states, 6 states have (on average 318.3333333333333) internal successors, (1910), 6 states have internal predecessors, (1910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:12,461 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:12,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 433 [2024-10-11 16:45:12,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:13,980 INFO L124 PetriNetUnfolderBase]: 2177/9142 cut-off events. [2024-10-11 16:45:13,981 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2024-10-11 16:45:14,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13246 conditions, 9142 events. 2177/9142 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 80013 event pairs, 1832 based on Foata normal form. 0/8187 useless extension candidates. Maximal degree in co-relation 13190. Up to 4013 conditions per place. [2024-10-11 16:45:14,052 INFO L140 encePairwiseOnDemand]: 427/433 looper letters, 100 selfloop transitions, 5 changer transitions 0/408 dead transitions. [2024-10-11 16:45:14,052 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 408 transitions, 1040 flow [2024-10-11 16:45:14,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:14,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:14,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2008 transitions. [2024-10-11 16:45:14,057 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7729022324865281 [2024-10-11 16:45:14,057 INFO L175 Difference]: Start difference. First operand has 409 places, 409 transitions, 832 flow. Second operand 6 states and 2008 transitions. [2024-10-11 16:45:14,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 408 transitions, 1040 flow [2024-10-11 16:45:14,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 408 transitions, 1030 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:14,066 INFO L231 Difference]: Finished difference. Result has 408 places, 408 transitions, 830 flow [2024-10-11 16:45:14,067 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=820, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=403, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=830, PETRI_PLACES=408, PETRI_TRANSITIONS=408} [2024-10-11 16:45:14,069 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -10 predicate places. [2024-10-11 16:45:14,069 INFO L471 AbstractCegarLoop]: Abstraction has has 408 places, 408 transitions, 830 flow [2024-10-11 16:45:14,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 318.3333333333333) internal successors, (1910), 6 states have internal predecessors, (1910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:14,071 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:14,072 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] [2024-10-11 16:45:14,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 16:45:14,072 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:14,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:14,073 INFO L85 PathProgramCache]: Analyzing trace with hash 2145519330, now seen corresponding path program 1 times [2024-10-11 16:45:14,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:14,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599127895] [2024-10-11 16:45:14,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:14,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:14,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:14,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:14,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:14,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599127895] [2024-10-11 16:45:14,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599127895] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:14,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:14,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:14,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320043834] [2024-10-11 16:45:14,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:14,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:14,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:14,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:14,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:14,952 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 433 [2024-10-11 16:45:14,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 408 transitions, 830 flow. Second operand has 6 states, 6 states have (on average 318.3333333333333) internal successors, (1910), 6 states have internal predecessors, (1910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:14,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:14,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 433 [2024-10-11 16:45:14,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:16,472 INFO L124 PetriNetUnfolderBase]: 2177/9141 cut-off events. [2024-10-11 16:45:16,473 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2024-10-11 16:45:16,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13245 conditions, 9141 events. 2177/9141 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 79896 event pairs, 1832 based on Foata normal form. 0/8187 useless extension candidates. Maximal degree in co-relation 13181. Up to 4013 conditions per place. [2024-10-11 16:45:16,531 INFO L140 encePairwiseOnDemand]: 427/433 looper letters, 100 selfloop transitions, 5 changer transitions 0/407 dead transitions. [2024-10-11 16:45:16,531 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 412 places, 407 transitions, 1038 flow [2024-10-11 16:45:16,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:16,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:16,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2008 transitions. [2024-10-11 16:45:16,537 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7729022324865281 [2024-10-11 16:45:16,537 INFO L175 Difference]: Start difference. First operand has 408 places, 408 transitions, 830 flow. Second operand 6 states and 2008 transitions. [2024-10-11 16:45:16,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 412 places, 407 transitions, 1038 flow [2024-10-11 16:45:16,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 407 transitions, 1028 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:16,547 INFO L231 Difference]: Finished difference. Result has 407 places, 407 transitions, 828 flow [2024-10-11 16:45:16,547 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=818, PETRI_DIFFERENCE_MINUEND_PLACES=402, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=402, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=828, PETRI_PLACES=407, PETRI_TRANSITIONS=407} [2024-10-11 16:45:16,550 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -11 predicate places. [2024-10-11 16:45:16,550 INFO L471 AbstractCegarLoop]: Abstraction has has 407 places, 407 transitions, 828 flow [2024-10-11 16:45:16,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 318.3333333333333) internal successors, (1910), 6 states have internal predecessors, (1910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:16,552 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:16,553 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] [2024-10-11 16:45:16,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 16:45:16,554 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:16,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:16,557 INFO L85 PathProgramCache]: Analyzing trace with hash 391065413, now seen corresponding path program 1 times [2024-10-11 16:45:16,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:16,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284632950] [2024-10-11 16:45:16,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:16,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:16,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:17,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:17,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:17,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284632950] [2024-10-11 16:45:17,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284632950] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:17,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:17,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:17,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896252930] [2024-10-11 16:45:17,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:17,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:17,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:17,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:17,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:17,810 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 363 out of 433 [2024-10-11 16:45:17,813 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 407 transitions, 828 flow. Second operand has 6 states, 6 states have (on average 366.1666666666667) internal successors, (2197), 6 states have internal predecessors, (2197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:17,813 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:17,813 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 363 of 433 [2024-10-11 16:45:17,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:18,384 INFO L124 PetriNetUnfolderBase]: 502/4866 cut-off events. [2024-10-11 16:45:18,384 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-10-11 16:45:18,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5736 conditions, 4866 events. 502/4866 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 39114 event pairs, 344 based on Foata normal form. 0/4284 useless extension candidates. Maximal degree in co-relation 5654. Up to 811 conditions per place. [2024-10-11 16:45:18,408 INFO L140 encePairwiseOnDemand]: 427/433 looper letters, 54 selfloop transitions, 5 changer transitions 0/406 dead transitions. [2024-10-11 16:45:18,408 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 406 transitions, 944 flow [2024-10-11 16:45:18,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:18,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:18,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2238 transitions. [2024-10-11 16:45:18,413 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8614318706697459 [2024-10-11 16:45:18,414 INFO L175 Difference]: Start difference. First operand has 407 places, 407 transitions, 828 flow. Second operand 6 states and 2238 transitions. [2024-10-11 16:45:18,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 406 transitions, 944 flow [2024-10-11 16:45:18,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 406 transitions, 934 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:18,421 INFO L231 Difference]: Finished difference. Result has 406 places, 406 transitions, 826 flow [2024-10-11 16:45:18,422 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=816, PETRI_DIFFERENCE_MINUEND_PLACES=401, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=826, PETRI_PLACES=406, PETRI_TRANSITIONS=406} [2024-10-11 16:45:18,423 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -12 predicate places. [2024-10-11 16:45:18,424 INFO L471 AbstractCegarLoop]: Abstraction has has 406 places, 406 transitions, 826 flow [2024-10-11 16:45:18,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 366.1666666666667) internal successors, (2197), 6 states have internal predecessors, (2197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:18,426 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:18,426 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] [2024-10-11 16:45:18,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 16:45:18,427 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:18,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:18,427 INFO L85 PathProgramCache]: Analyzing trace with hash -454542045, now seen corresponding path program 1 times [2024-10-11 16:45:18,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:18,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945854015] [2024-10-11 16:45:18,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:18,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:18,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:18,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:18,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:18,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945854015] [2024-10-11 16:45:18,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945854015] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:18,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:18,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:18,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871441745] [2024-10-11 16:45:18,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:18,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:18,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:18,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:18,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:19,463 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 363 out of 433 [2024-10-11 16:45:19,466 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 406 transitions, 826 flow. Second operand has 6 states, 6 states have (on average 366.1666666666667) internal successors, (2197), 6 states have internal predecessors, (2197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:19,466 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:19,467 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 363 of 433 [2024-10-11 16:45:19,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:19,926 INFO L124 PetriNetUnfolderBase]: 502/4865 cut-off events. [2024-10-11 16:45:19,926 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-10-11 16:45:19,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5735 conditions, 4865 events. 502/4865 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 39089 event pairs, 344 based on Foata normal form. 0/4284 useless extension candidates. Maximal degree in co-relation 5615. Up to 811 conditions per place. [2024-10-11 16:45:19,945 INFO L140 encePairwiseOnDemand]: 427/433 looper letters, 54 selfloop transitions, 5 changer transitions 0/405 dead transitions. [2024-10-11 16:45:19,946 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 405 transitions, 942 flow [2024-10-11 16:45:19,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:19,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:19,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2238 transitions. [2024-10-11 16:45:19,950 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8614318706697459 [2024-10-11 16:45:19,950 INFO L175 Difference]: Start difference. First operand has 406 places, 406 transitions, 826 flow. Second operand 6 states and 2238 transitions. [2024-10-11 16:45:19,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 405 transitions, 942 flow [2024-10-11 16:45:19,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 405 transitions, 932 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:19,956 INFO L231 Difference]: Finished difference. Result has 405 places, 405 transitions, 824 flow [2024-10-11 16:45:19,957 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=814, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=405, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=824, PETRI_PLACES=405, PETRI_TRANSITIONS=405} [2024-10-11 16:45:19,958 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -13 predicate places. [2024-10-11 16:45:19,958 INFO L471 AbstractCegarLoop]: Abstraction has has 405 places, 405 transitions, 824 flow [2024-10-11 16:45:19,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 366.1666666666667) internal successors, (2197), 6 states have internal predecessors, (2197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:19,959 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:19,959 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] [2024-10-11 16:45:19,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 16:45:19,960 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:19,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:19,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1463677188, now seen corresponding path program 1 times [2024-10-11 16:45:19,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:19,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430533407] [2024-10-11 16:45:19,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:19,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:19,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:20,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:20,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:20,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430533407] [2024-10-11 16:45:20,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430533407] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:20,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:20,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:20,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99436975] [2024-10-11 16:45:20,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:20,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:20,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:20,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:20,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:20,038 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 410 out of 433 [2024-10-11 16:45:20,040 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 405 transitions, 824 flow. Second operand has 3 states, 3 states have (on average 411.6666666666667) internal successors, (1235), 3 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:20,040 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:20,040 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 410 of 433 [2024-10-11 16:45:20,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:20,148 INFO L124 PetriNetUnfolderBase]: 53/997 cut-off events. [2024-10-11 16:45:20,148 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-11 16:45:20,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1107 conditions, 997 events. 53/997 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 4917 event pairs, 14 based on Foata normal form. 0/893 useless extension candidates. Maximal degree in co-relation 1006. Up to 56 conditions per place. [2024-10-11 16:45:20,156 INFO L140 encePairwiseOnDemand]: 428/433 looper letters, 17 selfloop transitions, 4 changer transitions 0/413 dead transitions. [2024-10-11 16:45:20,156 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 413 transitions, 885 flow [2024-10-11 16:45:20,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:20,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:20,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1252 transitions. [2024-10-11 16:45:20,159 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9638183217859893 [2024-10-11 16:45:20,159 INFO L175 Difference]: Start difference. First operand has 405 places, 405 transitions, 824 flow. Second operand 3 states and 1252 transitions. [2024-10-11 16:45:20,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 413 transitions, 885 flow [2024-10-11 16:45:20,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 402 places, 413 transitions, 875 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:20,169 INFO L231 Difference]: Finished difference. Result has 404 places, 408 transitions, 844 flow [2024-10-11 16:45:20,170 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=814, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=405, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=844, PETRI_PLACES=404, PETRI_TRANSITIONS=408} [2024-10-11 16:45:20,170 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -14 predicate places. [2024-10-11 16:45:20,171 INFO L471 AbstractCegarLoop]: Abstraction has has 404 places, 408 transitions, 844 flow [2024-10-11 16:45:20,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 411.6666666666667) internal successors, (1235), 3 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:20,173 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:20,173 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] [2024-10-11 16:45:20,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 16:45:20,174 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:20,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:20,176 INFO L85 PathProgramCache]: Analyzing trace with hash 759729093, now seen corresponding path program 1 times [2024-10-11 16:45:20,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:20,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793584689] [2024-10-11 16:45:20,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:20,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:20,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:20,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:20,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:20,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793584689] [2024-10-11 16:45:20,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793584689] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:20,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:20,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:20,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940660551] [2024-10-11 16:45:20,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:20,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:20,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:20,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:20,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:20,269 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 410 out of 433 [2024-10-11 16:45:20,271 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 408 transitions, 844 flow. Second operand has 3 states, 3 states have (on average 412.0) internal successors, (1236), 3 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:20,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:20,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 410 of 433 [2024-10-11 16:45:20,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:20,483 INFO L124 PetriNetUnfolderBase]: 96/2060 cut-off events. [2024-10-11 16:45:20,483 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-10-11 16:45:20,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2238 conditions, 2060 events. 96/2060 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 13671 event pairs, 22 based on Foata normal form. 0/1839 useless extension candidates. Maximal degree in co-relation 1965. Up to 85 conditions per place. [2024-10-11 16:45:20,495 INFO L140 encePairwiseOnDemand]: 428/433 looper letters, 16 selfloop transitions, 4 changer transitions 0/415 dead transitions. [2024-10-11 16:45:20,495 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 415 transitions, 899 flow [2024-10-11 16:45:20,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:20,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:20,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1251 transitions. [2024-10-11 16:45:20,498 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9630484988452656 [2024-10-11 16:45:20,498 INFO L175 Difference]: Start difference. First operand has 404 places, 408 transitions, 844 flow. Second operand 3 states and 1251 transitions. [2024-10-11 16:45:20,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 415 transitions, 899 flow [2024-10-11 16:45:20,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 415 transitions, 891 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 16:45:20,506 INFO L231 Difference]: Finished difference. Result has 406 places, 411 transitions, 866 flow [2024-10-11 16:45:20,507 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=836, PETRI_DIFFERENCE_MINUEND_PLACES=402, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=404, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=866, PETRI_PLACES=406, PETRI_TRANSITIONS=411} [2024-10-11 16:45:20,508 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -12 predicate places. [2024-10-11 16:45:20,508 INFO L471 AbstractCegarLoop]: Abstraction has has 406 places, 411 transitions, 866 flow [2024-10-11 16:45:20,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 412.0) internal successors, (1236), 3 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:20,509 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:20,509 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] [2024-10-11 16:45:20,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 16:45:20,510 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:20,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:20,510 INFO L85 PathProgramCache]: Analyzing trace with hash 883360349, now seen corresponding path program 1 times [2024-10-11 16:45:20,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:20,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257386543] [2024-10-11 16:45:20,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:20,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:20,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:20,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:20,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:20,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257386543] [2024-10-11 16:45:20,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257386543] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:20,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:20,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 16:45:20,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397845435] [2024-10-11 16:45:20,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:20,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:20,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:20,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:20,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:20,625 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 412 out of 433 [2024-10-11 16:45:20,627 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 411 transitions, 866 flow. Second operand has 3 states, 3 states have (on average 413.6666666666667) internal successors, (1241), 3 states have internal predecessors, (1241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:20,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:20,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 412 of 433 [2024-10-11 16:45:20,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:20,887 INFO L124 PetriNetUnfolderBase]: 81/2136 cut-off events. [2024-10-11 16:45:20,888 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-10-11 16:45:20,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2325 conditions, 2136 events. 81/2136 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 12389 event pairs, 33 based on Foata normal form. 7/1929 useless extension candidates. Maximal degree in co-relation 1934. Up to 103 conditions per place. [2024-10-11 16:45:20,903 INFO L140 encePairwiseOnDemand]: 430/433 looper letters, 13 selfloop transitions, 2 changer transitions 0/415 dead transitions. [2024-10-11 16:45:20,904 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 415 transitions, 906 flow [2024-10-11 16:45:20,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:20,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:20,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1252 transitions. [2024-10-11 16:45:20,907 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9638183217859893 [2024-10-11 16:45:20,907 INFO L175 Difference]: Start difference. First operand has 406 places, 411 transitions, 866 flow. Second operand 3 states and 1252 transitions. [2024-10-11 16:45:20,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 415 transitions, 906 flow [2024-10-11 16:45:20,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 415 transitions, 898 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 16:45:20,914 INFO L231 Difference]: Finished difference. Result has 407 places, 412 transitions, 870 flow [2024-10-11 16:45:20,915 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=858, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=870, PETRI_PLACES=407, PETRI_TRANSITIONS=412} [2024-10-11 16:45:20,915 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -11 predicate places. [2024-10-11 16:45:20,915 INFO L471 AbstractCegarLoop]: Abstraction has has 407 places, 412 transitions, 870 flow [2024-10-11 16:45:20,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 413.6666666666667) internal successors, (1241), 3 states have internal predecessors, (1241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:20,917 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:20,917 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] [2024-10-11 16:45:20,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 16:45:20,917 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t2Err12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:20,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:20,918 INFO L85 PathProgramCache]: Analyzing trace with hash 502052831, now seen corresponding path program 1 times [2024-10-11 16:45:20,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:20,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742624006] [2024-10-11 16:45:20,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:20,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:20,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:20,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:20,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:20,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742624006] [2024-10-11 16:45:20,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742624006] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:20,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:20,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 16:45:20,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156859655] [2024-10-11 16:45:20,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:20,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:20,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:20,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:20,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:21,013 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 412 out of 433 [2024-10-11 16:45:21,015 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 412 transitions, 870 flow. Second operand has 3 states, 3 states have (on average 414.0) internal successors, (1242), 3 states have internal predecessors, (1242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:21,015 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:21,015 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 412 of 433 [2024-10-11 16:45:21,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:21,519 INFO L124 PetriNetUnfolderBase]: 136/3784 cut-off events. [2024-10-11 16:45:21,519 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-10-11 16:45:21,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4005 conditions, 3784 events. 136/3784 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 26236 event pairs, 40 based on Foata normal form. 9/3393 useless extension candidates. Maximal degree in co-relation 3630. Up to 113 conditions per place. [2024-10-11 16:45:21,544 INFO L140 encePairwiseOnDemand]: 430/433 looper letters, 13 selfloop transitions, 2 changer transitions 0/416 dead transitions. [2024-10-11 16:45:21,545 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 416 transitions, 909 flow [2024-10-11 16:45:21,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:21,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:21,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1252 transitions. [2024-10-11 16:45:21,548 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9638183217859893 [2024-10-11 16:45:21,548 INFO L175 Difference]: Start difference. First operand has 407 places, 412 transitions, 870 flow. Second operand 3 states and 1252 transitions. [2024-10-11 16:45:21,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 416 transitions, 909 flow [2024-10-11 16:45:21,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 416 transitions, 907 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 16:45:21,556 INFO L231 Difference]: Finished difference. Result has 409 places, 413 transitions, 880 flow [2024-10-11 16:45:21,556 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=868, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=880, PETRI_PLACES=409, PETRI_TRANSITIONS=413} [2024-10-11 16:45:21,557 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -9 predicate places. [2024-10-11 16:45:21,557 INFO L471 AbstractCegarLoop]: Abstraction has has 409 places, 413 transitions, 880 flow [2024-10-11 16:45:21,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 414.0) internal successors, (1242), 3 states have internal predecessors, (1242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:21,558 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:21,559 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] [2024-10-11 16:45:21,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 16:45:21,559 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:21,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:21,560 INFO L85 PathProgramCache]: Analyzing trace with hash 771778809, now seen corresponding path program 1 times [2024-10-11 16:45:21,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:21,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305686153] [2024-10-11 16:45:21,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:21,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:21,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:22,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:22,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:22,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305686153] [2024-10-11 16:45:22,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305686153] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:22,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:22,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-11 16:45:22,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225338916] [2024-10-11 16:45:22,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:22,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 16:45:22,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:22,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 16:45:22,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-10-11 16:45:24,061 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 384 out of 433 [2024-10-11 16:45:24,069 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 413 transitions, 880 flow. Second operand has 13 states, 13 states have (on average 385.9230769230769) internal successors, (5017), 13 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:24,069 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:24,069 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 384 of 433 [2024-10-11 16:45:24,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:25,129 INFO L124 PetriNetUnfolderBase]: 296/4732 cut-off events. [2024-10-11 16:45:25,129 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2024-10-11 16:45:25,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5381 conditions, 4732 events. 296/4732 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 40451 event pairs, 101 based on Foata normal form. 0/4213 useless extension candidates. Maximal degree in co-relation 4939. Up to 402 conditions per place. [2024-10-11 16:45:25,162 INFO L140 encePairwiseOnDemand]: 415/433 looper letters, 27 selfloop transitions, 17 changer transitions 0/417 dead transitions. [2024-10-11 16:45:25,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 417 transitions, 979 flow [2024-10-11 16:45:25,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 16:45:25,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-11 16:45:25,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 4653 transitions. [2024-10-11 16:45:25,171 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8954965357967667 [2024-10-11 16:45:25,172 INFO L175 Difference]: Start difference. First operand has 409 places, 413 transitions, 880 flow. Second operand 12 states and 4653 transitions. [2024-10-11 16:45:25,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 417 transitions, 979 flow [2024-10-11 16:45:25,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 417 transitions, 977 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 16:45:25,179 INFO L231 Difference]: Finished difference. Result has 417 places, 411 transitions, 919 flow [2024-10-11 16:45:25,180 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=870, PETRI_DIFFERENCE_MINUEND_PLACES=405, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=392, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=919, PETRI_PLACES=417, PETRI_TRANSITIONS=411} [2024-10-11 16:45:25,181 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -1 predicate places. [2024-10-11 16:45:25,181 INFO L471 AbstractCegarLoop]: Abstraction has has 417 places, 411 transitions, 919 flow [2024-10-11 16:45:25,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 385.9230769230769) internal successors, (5017), 13 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:25,183 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:25,183 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] [2024-10-11 16:45:25,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 16:45:25,184 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:25,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:25,184 INFO L85 PathProgramCache]: Analyzing trace with hash -2139061273, now seen corresponding path program 1 times [2024-10-11 16:45:25,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:25,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269433952] [2024-10-11 16:45:25,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:25,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:25,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:25,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:25,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:25,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269433952] [2024-10-11 16:45:25,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269433952] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:25,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:25,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:25,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075436068] [2024-10-11 16:45:25,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:25,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:25,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:25,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:25,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:26,549 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 353 out of 433 [2024-10-11 16:45:26,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 411 transitions, 919 flow. Second operand has 6 states, 6 states have (on average 356.5) internal successors, (2139), 6 states have internal predecessors, (2139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:26,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:26,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 353 of 433 [2024-10-11 16:45:26,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:29,937 INFO L124 PetriNetUnfolderBase]: 4032/25116 cut-off events. [2024-10-11 16:45:29,938 INFO L125 PetriNetUnfolderBase]: For 86/86 co-relation queries the response was YES. [2024-10-11 16:45:30,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33200 conditions, 25116 events. 4032/25116 cut-off events. For 86/86 co-relation queries the response was YES. Maximal size of possible extension queue 273. Compared 292583 event pairs, 1615 based on Foata normal form. 0/22411 useless extension candidates. Maximal degree in co-relation 32442. Up to 5670 conditions per place. [2024-10-11 16:45:30,087 INFO L140 encePairwiseOnDemand]: 400/433 looper letters, 83 selfloop transitions, 66 changer transitions 0/490 dead transitions. [2024-10-11 16:45:30,087 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 490 transitions, 1383 flow [2024-10-11 16:45:30,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:30,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:30,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2270 transitions. [2024-10-11 16:45:30,096 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8737490377213241 [2024-10-11 16:45:30,096 INFO L175 Difference]: Start difference. First operand has 417 places, 411 transitions, 919 flow. Second operand 6 states and 2270 transitions. [2024-10-11 16:45:30,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 490 transitions, 1383 flow [2024-10-11 16:45:30,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 490 transitions, 1356 flow, removed 0 selfloop flow, removed 10 redundant places. [2024-10-11 16:45:30,109 INFO L231 Difference]: Finished difference. Result has 417 places, 475 transitions, 1346 flow [2024-10-11 16:45:30,110 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=892, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=381, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1346, PETRI_PLACES=417, PETRI_TRANSITIONS=475} [2024-10-11 16:45:30,111 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -1 predicate places. [2024-10-11 16:45:30,111 INFO L471 AbstractCegarLoop]: Abstraction has has 417 places, 475 transitions, 1346 flow [2024-10-11 16:45:30,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 356.5) internal successors, (2139), 6 states have internal predecessors, (2139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:30,112 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:30,113 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] [2024-10-11 16:45:30,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 16:45:30,113 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:30,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:30,113 INFO L85 PathProgramCache]: Analyzing trace with hash -655660397, now seen corresponding path program 1 times [2024-10-11 16:45:30,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:30,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388550491] [2024-10-11 16:45:30,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:30,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:30,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:30,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:30,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:30,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388550491] [2024-10-11 16:45:30,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388550491] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:30,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:30,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 16:45:30,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739364106] [2024-10-11 16:45:30,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:30,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:30,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:30,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:30,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:30,269 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 411 out of 433 [2024-10-11 16:45:30,270 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 475 transitions, 1346 flow. Second operand has 3 states, 3 states have (on average 413.0) internal successors, (1239), 3 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:30,270 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:30,270 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 411 of 433 [2024-10-11 16:45:30,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:30,571 INFO L124 PetriNetUnfolderBase]: 85/2798 cut-off events. [2024-10-11 16:45:30,571 INFO L125 PetriNetUnfolderBase]: For 54/54 co-relation queries the response was YES. [2024-10-11 16:45:30,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3371 conditions, 2798 events. 85/2798 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 17266 event pairs, 17 based on Foata normal form. 4/2539 useless extension candidates. Maximal degree in co-relation 2929. Up to 169 conditions per place. [2024-10-11 16:45:30,584 INFO L140 encePairwiseOnDemand]: 429/433 looper letters, 14 selfloop transitions, 3 changer transitions 0/408 dead transitions. [2024-10-11 16:45:30,584 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 408 transitions, 995 flow [2024-10-11 16:45:30,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:30,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:30,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1251 transitions. [2024-10-11 16:45:30,587 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9630484988452656 [2024-10-11 16:45:30,587 INFO L175 Difference]: Start difference. First operand has 417 places, 475 transitions, 1346 flow. Second operand 3 states and 1251 transitions. [2024-10-11 16:45:30,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 408 transitions, 995 flow [2024-10-11 16:45:30,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 403 places, 408 transitions, 903 flow, removed 22 selfloop flow, removed 12 redundant places. [2024-10-11 16:45:30,599 INFO L231 Difference]: Finished difference. Result has 404 places, 403 transitions, 867 flow [2024-10-11 16:45:30,600 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=856, PETRI_DIFFERENCE_MINUEND_PLACES=401, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=403, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=867, PETRI_PLACES=404, PETRI_TRANSITIONS=403} [2024-10-11 16:45:30,600 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -14 predicate places. [2024-10-11 16:45:30,600 INFO L471 AbstractCegarLoop]: Abstraction has has 404 places, 403 transitions, 867 flow [2024-10-11 16:45:30,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 413.0) internal successors, (1239), 3 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:30,601 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:30,601 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] [2024-10-11 16:45:30,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 16:45:30,602 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:30,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:30,602 INFO L85 PathProgramCache]: Analyzing trace with hash 548621147, now seen corresponding path program 1 times [2024-10-11 16:45:30,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:30,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654668696] [2024-10-11 16:45:30,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:30,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:30,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:31,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:31,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:31,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654668696] [2024-10-11 16:45:31,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654668696] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:31,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:31,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:31,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863011057] [2024-10-11 16:45:31,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:31,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:31,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:31,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:31,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:31,633 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 433 [2024-10-11 16:45:31,635 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 403 transitions, 867 flow. Second operand has 6 states, 6 states have (on average 312.8333333333333) internal successors, (1877), 6 states have internal predecessors, (1877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:31,635 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:31,635 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 433 [2024-10-11 16:45:31,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:32,183 INFO L124 PetriNetUnfolderBase]: 692/3392 cut-off events. [2024-10-11 16:45:32,183 INFO L125 PetriNetUnfolderBase]: For 193/193 co-relation queries the response was YES. [2024-10-11 16:45:32,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5237 conditions, 3392 events. 692/3392 cut-off events. For 193/193 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 23997 event pairs, 604 based on Foata normal form. 0/3130 useless extension candidates. Maximal degree in co-relation 4406. Up to 1497 conditions per place. [2024-10-11 16:45:32,198 INFO L140 encePairwiseOnDemand]: 427/433 looper letters, 122 selfloop transitions, 5 changer transitions 0/414 dead transitions. [2024-10-11 16:45:32,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 414 transitions, 1151 flow [2024-10-11 16:45:32,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:32,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:32,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1970 transitions. [2024-10-11 16:45:32,204 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7582755966127791 [2024-10-11 16:45:32,204 INFO L175 Difference]: Start difference. First operand has 404 places, 403 transitions, 867 flow. Second operand 6 states and 1970 transitions. [2024-10-11 16:45:32,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 414 transitions, 1151 flow [2024-10-11 16:45:32,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 414 transitions, 1145 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 16:45:32,211 INFO L231 Difference]: Finished difference. Result has 406 places, 402 transitions, 869 flow [2024-10-11 16:45:32,212 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=859, PETRI_DIFFERENCE_MINUEND_PLACES=401, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=402, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=397, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=869, PETRI_PLACES=406, PETRI_TRANSITIONS=402} [2024-10-11 16:45:32,213 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -12 predicate places. [2024-10-11 16:45:32,213 INFO L471 AbstractCegarLoop]: Abstraction has has 406 places, 402 transitions, 869 flow [2024-10-11 16:45:32,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 312.8333333333333) internal successors, (1877), 6 states have internal predecessors, (1877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:32,214 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:32,214 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] [2024-10-11 16:45:32,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 16:45:32,214 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t1Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:32,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:32,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1718961312, now seen corresponding path program 1 times [2024-10-11 16:45:32,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:32,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461919887] [2024-10-11 16:45:32,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:32,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:32,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:32,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:32,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:32,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461919887] [2024-10-11 16:45:32,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461919887] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:32,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:32,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:32,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171076700] [2024-10-11 16:45:32,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:32,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:32,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:32,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:32,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:33,472 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 433 [2024-10-11 16:45:33,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 402 transitions, 869 flow. Second operand has 6 states, 6 states have (on average 374.1666666666667) internal successors, (2245), 6 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:33,474 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:33,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 433 [2024-10-11 16:45:33,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:33,856 INFO L124 PetriNetUnfolderBase]: 296/2747 cut-off events. [2024-10-11 16:45:33,856 INFO L125 PetriNetUnfolderBase]: For 66/66 co-relation queries the response was YES. [2024-10-11 16:45:33,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3565 conditions, 2747 events. 296/2747 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 16428 event pairs, 214 based on Foata normal form. 0/2518 useless extension candidates. Maximal degree in co-relation 2966. Up to 533 conditions per place. [2024-10-11 16:45:33,864 INFO L140 encePairwiseOnDemand]: 427/433 looper letters, 59 selfloop transitions, 5 changer transitions 0/413 dead transitions. [2024-10-11 16:45:33,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 413 transitions, 1027 flow [2024-10-11 16:45:33,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:33,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:33,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2285 transitions. [2024-10-11 16:45:33,869 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8795227097767514 [2024-10-11 16:45:33,869 INFO L175 Difference]: Start difference. First operand has 406 places, 402 transitions, 869 flow. Second operand 6 states and 2285 transitions. [2024-10-11 16:45:33,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 413 transitions, 1027 flow [2024-10-11 16:45:33,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 413 transitions, 1017 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:33,877 INFO L231 Difference]: Finished difference. Result has 405 places, 401 transitions, 867 flow [2024-10-11 16:45:33,877 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=857, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=401, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=867, PETRI_PLACES=405, PETRI_TRANSITIONS=401} [2024-10-11 16:45:33,878 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -13 predicate places. [2024-10-11 16:45:33,878 INFO L471 AbstractCegarLoop]: Abstraction has has 405 places, 401 transitions, 867 flow [2024-10-11 16:45:33,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 374.1666666666667) internal successors, (2245), 6 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:33,879 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:33,879 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] [2024-10-11 16:45:33,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 16:45:33,879 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t1Err4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:33,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:33,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1272337691, now seen corresponding path program 1 times [2024-10-11 16:45:33,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:33,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408778247] [2024-10-11 16:45:33,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:33,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:33,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:34,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:34,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:34,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408778247] [2024-10-11 16:45:34,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408778247] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:34,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:34,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:34,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256298931] [2024-10-11 16:45:34,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:34,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:34,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:34,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:34,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:34,987 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 328 out of 433 [2024-10-11 16:45:34,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 401 transitions, 867 flow. Second operand has 6 states, 6 states have (on average 334.5) internal successors, (2007), 6 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:34,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:34,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 328 of 433 [2024-10-11 16:45:34,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:35,352 INFO L124 PetriNetUnfolderBase]: 566/3250 cut-off events. [2024-10-11 16:45:35,352 INFO L125 PetriNetUnfolderBase]: For 194/194 co-relation queries the response was YES. [2024-10-11 16:45:35,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4746 conditions, 3250 events. 566/3250 cut-off events. For 194/194 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 22473 event pairs, 478 based on Foata normal form. 0/3004 useless extension candidates. Maximal degree in co-relation 4121. Up to 1203 conditions per place. [2024-10-11 16:45:35,362 INFO L140 encePairwiseOnDemand]: 427/433 looper letters, 101 selfloop transitions, 5 changer transitions 0/412 dead transitions. [2024-10-11 16:45:35,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 412 transitions, 1109 flow [2024-10-11 16:45:35,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:35,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:35,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2075 transitions. [2024-10-11 16:45:35,366 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7986913010007698 [2024-10-11 16:45:35,366 INFO L175 Difference]: Start difference. First operand has 405 places, 401 transitions, 867 flow. Second operand 6 states and 2075 transitions. [2024-10-11 16:45:35,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 412 transitions, 1109 flow [2024-10-11 16:45:35,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 412 transitions, 1099 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:35,373 INFO L231 Difference]: Finished difference. Result has 404 places, 400 transitions, 865 flow [2024-10-11 16:45:35,374 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=855, PETRI_DIFFERENCE_MINUEND_PLACES=399, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=400, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=865, PETRI_PLACES=404, PETRI_TRANSITIONS=400} [2024-10-11 16:45:35,375 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -14 predicate places. [2024-10-11 16:45:35,375 INFO L471 AbstractCegarLoop]: Abstraction has has 404 places, 400 transitions, 865 flow [2024-10-11 16:45:35,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 334.5) internal successors, (2007), 6 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:35,376 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:35,376 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] [2024-10-11 16:45:35,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 16:45:35,377 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t1Err6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:35,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:35,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1583194156, now seen corresponding path program 1 times [2024-10-11 16:45:35,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:35,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268846402] [2024-10-11 16:45:35,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:35,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:35,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:35,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:35,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:35,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268846402] [2024-10-11 16:45:35,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268846402] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:35,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:35,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:35,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665315029] [2024-10-11 16:45:35,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:35,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:35,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:35,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:35,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:36,552 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 433 [2024-10-11 16:45:36,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 400 transitions, 865 flow. Second operand has 6 states, 6 states have (on average 320.3333333333333) internal successors, (1922), 6 states have internal predecessors, (1922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:36,553 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:36,553 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 433 [2024-10-11 16:45:36,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:36,880 INFO L124 PetriNetUnfolderBase]: 656/3332 cut-off events. [2024-10-11 16:45:36,880 INFO L125 PetriNetUnfolderBase]: For 186/186 co-relation queries the response was YES. [2024-10-11 16:45:36,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5098 conditions, 3332 events. 656/3332 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 23479 event pairs, 568 based on Foata normal form. 0/3102 useless extension candidates. Maximal degree in co-relation 4325. Up to 1413 conditions per place. [2024-10-11 16:45:36,890 INFO L140 encePairwiseOnDemand]: 427/433 looper letters, 116 selfloop transitions, 5 changer transitions 0/411 dead transitions. [2024-10-11 16:45:36,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 411 transitions, 1137 flow [2024-10-11 16:45:36,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:36,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:36,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2000 transitions. [2024-10-11 16:45:36,895 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7698229407236336 [2024-10-11 16:45:36,895 INFO L175 Difference]: Start difference. First operand has 404 places, 400 transitions, 865 flow. Second operand 6 states and 2000 transitions. [2024-10-11 16:45:36,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 411 transitions, 1137 flow [2024-10-11 16:45:36,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 403 places, 411 transitions, 1127 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:36,902 INFO L231 Difference]: Finished difference. Result has 403 places, 399 transitions, 863 flow [2024-10-11 16:45:36,903 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=853, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=399, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=863, PETRI_PLACES=403, PETRI_TRANSITIONS=399} [2024-10-11 16:45:36,903 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -15 predicate places. [2024-10-11 16:45:36,903 INFO L471 AbstractCegarLoop]: Abstraction has has 403 places, 399 transitions, 863 flow [2024-10-11 16:45:36,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 320.3333333333333) internal successors, (1922), 6 states have internal predecessors, (1922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:36,904 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:36,904 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] [2024-10-11 16:45:36,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 16:45:36,904 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t1Err8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:36,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:36,905 INFO L85 PathProgramCache]: Analyzing trace with hash -805606806, now seen corresponding path program 1 times [2024-10-11 16:45:36,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:36,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760410260] [2024-10-11 16:45:36,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:36,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:36,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:37,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:37,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:37,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760410260] [2024-10-11 16:45:37,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760410260] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:37,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:37,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:37,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957750403] [2024-10-11 16:45:37,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:37,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:37,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:37,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:37,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:37,846 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 433 [2024-10-11 16:45:37,847 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 399 transitions, 863 flow. Second operand has 6 states, 6 states have (on average 321.1666666666667) internal successors, (1927), 6 states have internal predecessors, (1927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:37,847 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:37,847 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 433 [2024-10-11 16:45:37,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:38,181 INFO L124 PetriNetUnfolderBase]: 650/3318 cut-off events. [2024-10-11 16:45:38,182 INFO L125 PetriNetUnfolderBase]: For 194/194 co-relation queries the response was YES. [2024-10-11 16:45:38,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5074 conditions, 3318 events. 650/3318 cut-off events. For 194/194 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 23344 event pairs, 562 based on Foata normal form. 0/3088 useless extension candidates. Maximal degree in co-relation 4311. Up to 1407 conditions per place. [2024-10-11 16:45:38,192 INFO L140 encePairwiseOnDemand]: 427/433 looper letters, 116 selfloop transitions, 5 changer transitions 0/410 dead transitions. [2024-10-11 16:45:38,192 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 410 transitions, 1135 flow [2024-10-11 16:45:38,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:38,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:38,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2000 transitions. [2024-10-11 16:45:38,196 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7698229407236336 [2024-10-11 16:45:38,196 INFO L175 Difference]: Start difference. First operand has 403 places, 399 transitions, 863 flow. Second operand 6 states and 2000 transitions. [2024-10-11 16:45:38,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 410 transitions, 1135 flow [2024-10-11 16:45:38,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 402 places, 410 transitions, 1125 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:38,204 INFO L231 Difference]: Finished difference. Result has 402 places, 398 transitions, 861 flow [2024-10-11 16:45:38,204 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=851, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=398, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=861, PETRI_PLACES=402, PETRI_TRANSITIONS=398} [2024-10-11 16:45:38,205 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -16 predicate places. [2024-10-11 16:45:38,205 INFO L471 AbstractCegarLoop]: Abstraction has has 402 places, 398 transitions, 861 flow [2024-10-11 16:45:38,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 321.1666666666667) internal successors, (1927), 6 states have internal predecessors, (1927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:38,206 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:38,206 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] [2024-10-11 16:45:38,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-11 16:45:38,206 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t1Err9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:38,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:38,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1799594946, now seen corresponding path program 1 times [2024-10-11 16:45:38,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:38,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483335285] [2024-10-11 16:45:38,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:38,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:38,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:38,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:38,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:38,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483335285] [2024-10-11 16:45:38,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483335285] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:38,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:38,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:38,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882599780] [2024-10-11 16:45:38,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:38,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:38,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:38,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:38,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:39,255 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 433 [2024-10-11 16:45:39,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 398 transitions, 861 flow. Second operand has 6 states, 6 states have (on average 317.1666666666667) internal successors, (1903), 6 states have internal predecessors, (1903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:39,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:39,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 433 [2024-10-11 16:45:39,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:39,800 INFO L124 PetriNetUnfolderBase]: 671/3334 cut-off events. [2024-10-11 16:45:39,801 INFO L125 PetriNetUnfolderBase]: For 206/206 co-relation queries the response was YES. [2024-10-11 16:45:39,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5150 conditions, 3334 events. 671/3334 cut-off events. For 206/206 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 23504 event pairs, 583 based on Foata normal form. 0/3110 useless extension candidates. Maximal degree in co-relation 4942. Up to 1453 conditions per place. [2024-10-11 16:45:39,815 INFO L140 encePairwiseOnDemand]: 427/433 looper letters, 122 selfloop transitions, 5 changer transitions 0/409 dead transitions. [2024-10-11 16:45:39,815 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 409 transitions, 1145 flow [2024-10-11 16:45:39,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:39,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:39,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1975 transitions. [2024-10-11 16:45:39,818 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7602001539645882 [2024-10-11 16:45:39,818 INFO L175 Difference]: Start difference. First operand has 402 places, 398 transitions, 861 flow. Second operand 6 states and 1975 transitions. [2024-10-11 16:45:39,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 409 transitions, 1145 flow [2024-10-11 16:45:39,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 409 transitions, 1135 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:39,826 INFO L231 Difference]: Finished difference. Result has 401 places, 397 transitions, 859 flow [2024-10-11 16:45:39,826 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=849, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=392, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=859, PETRI_PLACES=401, PETRI_TRANSITIONS=397} [2024-10-11 16:45:39,827 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -17 predicate places. [2024-10-11 16:45:39,827 INFO L471 AbstractCegarLoop]: Abstraction has has 401 places, 397 transitions, 859 flow [2024-10-11 16:45:39,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 317.1666666666667) internal successors, (1903), 6 states have internal predecessors, (1903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:39,828 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:39,828 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] [2024-10-11 16:45:39,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-11 16:45:39,828 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t1Err10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:39,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:39,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1624299871, now seen corresponding path program 1 times [2024-10-11 16:45:39,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:39,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147030064] [2024-10-11 16:45:39,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:39,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:39,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:39,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:39,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:39,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147030064] [2024-10-11 16:45:39,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147030064] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:45:39,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315357136] [2024-10-11 16:45:39,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:39,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:39,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:45:39,978 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:45:39,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 16:45:40,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:40,209 INFO L255 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 16:45:40,216 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:45:40,250 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 16:45:40,250 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 16:45:40,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315357136] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:40,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 16:45:40,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-11 16:45:40,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282036434] [2024-10-11 16:45:40,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:40,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:40,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:40,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:40,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:40,269 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 408 out of 433 [2024-10-11 16:45:40,271 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 397 transitions, 859 flow. Second operand has 3 states, 3 states have (on average 410.3333333333333) internal successors, (1231), 3 states have internal predecessors, (1231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:40,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:40,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 408 of 433 [2024-10-11 16:45:40,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:40,459 INFO L124 PetriNetUnfolderBase]: 63/1643 cut-off events. [2024-10-11 16:45:40,460 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-10-11 16:45:40,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1861 conditions, 1643 events. 63/1643 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 7463 event pairs, 29 based on Foata normal form. 0/1554 useless extension candidates. Maximal degree in co-relation 1467. Up to 79 conditions per place. [2024-10-11 16:45:40,464 INFO L140 encePairwiseOnDemand]: 430/433 looper letters, 15 selfloop transitions, 2 changer transitions 0/399 dead transitions. [2024-10-11 16:45:40,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 399 transitions, 899 flow [2024-10-11 16:45:40,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:40,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:40,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1242 transitions. [2024-10-11 16:45:40,466 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9561200923787528 [2024-10-11 16:45:40,466 INFO L175 Difference]: Start difference. First operand has 401 places, 397 transitions, 859 flow. Second operand 3 states and 1242 transitions. [2024-10-11 16:45:40,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 399 transitions, 899 flow [2024-10-11 16:45:40,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 399 transitions, 889 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:40,470 INFO L231 Difference]: Finished difference. Result has 397 places, 396 transitions, 851 flow [2024-10-11 16:45:40,471 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=847, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=851, PETRI_PLACES=397, PETRI_TRANSITIONS=396} [2024-10-11 16:45:40,471 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -21 predicate places. [2024-10-11 16:45:40,471 INFO L471 AbstractCegarLoop]: Abstraction has has 397 places, 396 transitions, 851 flow [2024-10-11 16:45:40,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 410.3333333333333) internal successors, (1231), 3 states have internal predecessors, (1231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:40,472 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:40,472 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] [2024-10-11 16:45:40,490 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 16:45:40,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:40,673 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting t1Err11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:40,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:40,673 INFO L85 PathProgramCache]: Analyzing trace with hash -939005070, now seen corresponding path program 1 times [2024-10-11 16:45:40,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:40,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630154318] [2024-10-11 16:45:40,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:40,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:40,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:40,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:40,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:40,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630154318] [2024-10-11 16:45:40,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630154318] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:45:40,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676977489] [2024-10-11 16:45:40,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:40,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:40,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:45:40,853 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:45:40,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 16:45:41,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:41,087 INFO L255 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 16:45:41,091 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:45:41,115 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 16:45:41,115 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 16:45:41,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1676977489] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:41,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 16:45:41,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-11 16:45:41,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025281574] [2024-10-11 16:45:41,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:41,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:41,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:41,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:41,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:41,129 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 408 out of 433 [2024-10-11 16:45:41,130 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 396 transitions, 851 flow. Second operand has 3 states, 3 states have (on average 410.0) internal successors, (1230), 3 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:41,130 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:41,130 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 408 of 433 [2024-10-11 16:45:41,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:41,398 INFO L124 PetriNetUnfolderBase]: 135/3325 cut-off events. [2024-10-11 16:45:41,398 INFO L125 PetriNetUnfolderBase]: For 41/48 co-relation queries the response was YES. [2024-10-11 16:45:41,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3640 conditions, 3325 events. 135/3325 cut-off events. For 41/48 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 22225 event pairs, 38 based on Foata normal form. 1/3072 useless extension candidates. Maximal degree in co-relation 3260. Up to 129 conditions per place. [2024-10-11 16:45:41,408 INFO L140 encePairwiseOnDemand]: 427/433 looper letters, 17 selfloop transitions, 7 changer transitions 1/404 dead transitions. [2024-10-11 16:45:41,409 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 404 transitions, 925 flow [2024-10-11 16:45:41,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:41,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:41,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1247 transitions. [2024-10-11 16:45:41,410 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9599692070823711 [2024-10-11 16:45:41,411 INFO L175 Difference]: Start difference. First operand has 397 places, 396 transitions, 851 flow. Second operand 3 states and 1247 transitions. [2024-10-11 16:45:41,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 404 transitions, 925 flow [2024-10-11 16:45:41,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 404 transitions, 921 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 16:45:41,417 INFO L231 Difference]: Finished difference. Result has 399 places, 401 transitions, 903 flow [2024-10-11 16:45:41,418 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=847, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=389, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=903, PETRI_PLACES=399, PETRI_TRANSITIONS=401} [2024-10-11 16:45:41,420 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -19 predicate places. [2024-10-11 16:45:41,420 INFO L471 AbstractCegarLoop]: Abstraction has has 399 places, 401 transitions, 903 flow [2024-10-11 16:45:41,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 410.0) internal successors, (1230), 3 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:41,420 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:41,420 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] [2024-10-11 16:45:41,434 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 16:45:41,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:41,621 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:41,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:41,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1252146744, now seen corresponding path program 1 times [2024-10-11 16:45:41,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:41,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563683919] [2024-10-11 16:45:41,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:41,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:41,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:41,768 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 16:45:41,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:41,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563683919] [2024-10-11 16:45:41,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563683919] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:41,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:41,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 16:45:41,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249701636] [2024-10-11 16:45:41,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:41,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:41,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:41,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:41,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:41,783 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 414 out of 433 [2024-10-11 16:45:41,784 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 401 transitions, 903 flow. Second operand has 3 states, 3 states have (on average 416.0) internal successors, (1248), 3 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:41,784 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:41,784 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 414 of 433 [2024-10-11 16:45:41,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:41,882 INFO L124 PetriNetUnfolderBase]: 22/890 cut-off events. [2024-10-11 16:45:41,882 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-10-11 16:45:41,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 991 conditions, 890 events. 22/890 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 2210 event pairs, 0 based on Foata normal form. 2/852 useless extension candidates. Maximal degree in co-relation 677. Up to 26 conditions per place. [2024-10-11 16:45:41,884 INFO L140 encePairwiseOnDemand]: 429/433 looper letters, 7 selfloop transitions, 3 changer transitions 14/394 dead transitions. [2024-10-11 16:45:41,884 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 394 transitions, 880 flow [2024-10-11 16:45:41,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:41,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:41,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1255 transitions. [2024-10-11 16:45:41,886 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9661277906081601 [2024-10-11 16:45:41,886 INFO L175 Difference]: Start difference. First operand has 399 places, 401 transitions, 903 flow. Second operand 3 states and 1255 transitions. [2024-10-11 16:45:41,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 394 transitions, 880 flow [2024-10-11 16:45:41,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 394 transitions, 860 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-10-11 16:45:41,892 INFO L231 Difference]: Finished difference. Result has 395 places, 378 transitions, 807 flow [2024-10-11 16:45:41,892 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=831, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=392, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=389, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=807, PETRI_PLACES=395, PETRI_TRANSITIONS=378} [2024-10-11 16:45:41,893 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -23 predicate places. [2024-10-11 16:45:41,893 INFO L471 AbstractCegarLoop]: Abstraction has has 395 places, 378 transitions, 807 flow [2024-10-11 16:45:41,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 416.0) internal successors, (1248), 3 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:41,894 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:41,894 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] [2024-10-11 16:45:41,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-11 16:45:41,895 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:41,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:41,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1220099169, now seen corresponding path program 1 times [2024-10-11 16:45:41,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:41,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198908184] [2024-10-11 16:45:41,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:41,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:41,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:42,048 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:42,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:42,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198908184] [2024-10-11 16:45:42,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198908184] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:45:42,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1240242135] [2024-10-11 16:45:42,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:42,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:42,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:45:42,052 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:45:42,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 16:45:42,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:42,304 INFO L255 TraceCheckSpWp]: Trace formula consists of 631 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 16:45:42,308 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:45:42,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:42,457 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 16:45:42,570 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:42,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1240242135] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 16:45:42,571 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 16:45:42,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-11 16:45:42,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318896931] [2024-10-11 16:45:42,571 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 16:45:42,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 16:45:42,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:42,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 16:45:42,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-11 16:45:42,643 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 409 out of 433 [2024-10-11 16:45:42,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 378 transitions, 807 flow. Second operand has 10 states, 10 states have (on average 411.2) internal successors, (4112), 10 states have internal predecessors, (4112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:42,646 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:42,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 409 of 433 [2024-10-11 16:45:42,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:42,840 INFO L124 PetriNetUnfolderBase]: 41/1304 cut-off events. [2024-10-11 16:45:42,840 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-10-11 16:45:42,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1459 conditions, 1304 events. 41/1304 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 3127 event pairs, 8 based on Foata normal form. 4/1241 useless extension candidates. Maximal degree in co-relation 935. Up to 28 conditions per place. [2024-10-11 16:45:42,844 INFO L140 encePairwiseOnDemand]: 427/433 looper letters, 20 selfloop transitions, 9 changer transitions 0/393 dead transitions. [2024-10-11 16:45:42,844 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 393 transitions, 911 flow [2024-10-11 16:45:42,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 16:45:42,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 16:45:42,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3712 transitions. [2024-10-11 16:45:42,846 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9525275853220426 [2024-10-11 16:45:42,846 INFO L175 Difference]: Start difference. First operand has 395 places, 378 transitions, 807 flow. Second operand 9 states and 3712 transitions. [2024-10-11 16:45:42,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 393 transitions, 911 flow [2024-10-11 16:45:42,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 393 transitions, 902 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-10-11 16:45:42,851 INFO L231 Difference]: Finished difference. Result has 392 places, 384 transitions, 848 flow [2024-10-11 16:45:42,852 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=798, PETRI_DIFFERENCE_MINUEND_PLACES=381, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=378, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=848, PETRI_PLACES=392, PETRI_TRANSITIONS=384} [2024-10-11 16:45:42,852 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -26 predicate places. [2024-10-11 16:45:42,852 INFO L471 AbstractCegarLoop]: Abstraction has has 392 places, 384 transitions, 848 flow [2024-10-11 16:45:42,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 411.2) internal successors, (4112), 10 states have internal predecessors, (4112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:42,853 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:42,853 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:42,868 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 16:45:43,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:43,054 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:43,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:43,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1909001055, now seen corresponding path program 2 times [2024-10-11 16:45:43,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:43,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705231969] [2024-10-11 16:45:43,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:43,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:43,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:43,497 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 228 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:43,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:43,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705231969] [2024-10-11 16:45:43,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705231969] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:45:43,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598669800] [2024-10-11 16:45:43,497 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 16:45:43,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:43,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:45:43,499 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:45:43,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 16:45:43,768 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 16:45:43,768 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 16:45:43,774 INFO L255 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-11 16:45:43,780 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:45:43,815 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-10-11 16:45:43,837 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2024-10-11 16:45:43,865 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 16:45:43,866 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2024-10-11 16:45:43,895 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 16:45:43,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2024-10-11 16:45:43,921 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2024-10-11 16:45:43,921 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 16:45:43,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1598669800] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:43,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 16:45:43,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-10-11 16:45:43,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047743885] [2024-10-11 16:45:43,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:43,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:43,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:43,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:43,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-10-11 16:45:44,873 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 363 out of 433 [2024-10-11 16:45:44,874 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 384 transitions, 848 flow. Second operand has 6 states, 6 states have (on average 369.6666666666667) internal successors, (2218), 6 states have internal predecessors, (2218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:44,874 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:44,874 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 363 of 433 [2024-10-11 16:45:44,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:45,087 INFO L124 PetriNetUnfolderBase]: 125/1382 cut-off events. [2024-10-11 16:45:45,087 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2024-10-11 16:45:45,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1919 conditions, 1382 events. 125/1382 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 4254 event pairs, 93 based on Foata normal form. 0/1320 useless extension candidates. Maximal degree in co-relation 1195. Up to 296 conditions per place. [2024-10-11 16:45:45,092 INFO L140 encePairwiseOnDemand]: 427/433 looper letters, 57 selfloop transitions, 5 changer transitions 0/387 dead transitions. [2024-10-11 16:45:45,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 387 transitions, 982 flow [2024-10-11 16:45:45,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:45,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:45,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2241 transitions. [2024-10-11 16:45:45,094 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8625866050808314 [2024-10-11 16:45:45,094 INFO L175 Difference]: Start difference. First operand has 392 places, 384 transitions, 848 flow. Second operand 6 states and 2241 transitions. [2024-10-11 16:45:45,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 387 transitions, 982 flow [2024-10-11 16:45:45,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 387 transitions, 976 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-11 16:45:45,100 INFO L231 Difference]: Finished difference. Result has 395 places, 383 transitions, 850 flow [2024-10-11 16:45:45,101 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=840, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=378, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=850, PETRI_PLACES=395, PETRI_TRANSITIONS=383} [2024-10-11 16:45:45,101 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -23 predicate places. [2024-10-11 16:45:45,102 INFO L471 AbstractCegarLoop]: Abstraction has has 395 places, 383 transitions, 850 flow [2024-10-11 16:45:45,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 369.6666666666667) internal successors, (2218), 6 states have internal predecessors, (2218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:45,102 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:45,103 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:45,121 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-11 16:45:45,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-10-11 16:45:45,304 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting t2Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:45,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:45,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1520704861, now seen corresponding path program 1 times [2024-10-11 16:45:45,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:45,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328817220] [2024-10-11 16:45:45,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:45,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:45,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:45,712 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 228 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:45,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:45,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328817220] [2024-10-11 16:45:45,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328817220] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:45:45,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1990933069] [2024-10-11 16:45:45,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:45,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:45,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:45:45,715 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:45:45,717 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 16:45:46,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:46,107 INFO L255 TraceCheckSpWp]: Trace formula consists of 1139 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 16:45:46,113 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:45:46,388 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 228 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:46,388 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 16:45:46,706 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 228 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:46,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1990933069] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 16:45:46,707 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 16:45:46,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-11 16:45:46,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951747655] [2024-10-11 16:45:46,707 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 16:45:46,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-11 16:45:46,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:46,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-11 16:45:46,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-11 16:45:46,811 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 409 out of 433 [2024-10-11 16:45:46,814 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 383 transitions, 850 flow. Second operand has 18 states, 18 states have (on average 411.1111111111111) internal successors, (7400), 18 states have internal predecessors, (7400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:46,814 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:46,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 409 of 433 [2024-10-11 16:45:46,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:47,308 INFO L124 PetriNetUnfolderBase]: 65/2068 cut-off events. [2024-10-11 16:45:47,308 INFO L125 PetriNetUnfolderBase]: For 55/55 co-relation queries the response was YES. [2024-10-11 16:45:47,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2403 conditions, 2068 events. 65/2068 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 4603 event pairs, 8 based on Foata normal form. 8/2005 useless extension candidates. Maximal degree in co-relation 1834. Up to 34 conditions per place. [2024-10-11 16:45:47,316 INFO L140 encePairwiseOnDemand]: 427/433 looper letters, 36 selfloop transitions, 21 changer transitions 0/420 dead transitions. [2024-10-11 16:45:47,316 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 420 transitions, 1128 flow [2024-10-11 16:45:47,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-11 16:45:47,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-11 16:45:47,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 8650 transitions. [2024-10-11 16:45:47,323 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9512812053227757 [2024-10-11 16:45:47,323 INFO L175 Difference]: Start difference. First operand has 395 places, 383 transitions, 850 flow. Second operand 21 states and 8650 transitions. [2024-10-11 16:45:47,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 420 transitions, 1128 flow [2024-10-11 16:45:47,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 420 transitions, 1118 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:47,330 INFO L231 Difference]: Finished difference. Result has 415 places, 396 transitions, 970 flow [2024-10-11 16:45:47,331 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=840, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=970, PETRI_PLACES=415, PETRI_TRANSITIONS=396} [2024-10-11 16:45:47,331 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -3 predicate places. [2024-10-11 16:45:47,331 INFO L471 AbstractCegarLoop]: Abstraction has has 415 places, 396 transitions, 970 flow [2024-10-11 16:45:47,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 411.1111111111111) internal successors, (7400), 18 states have internal predecessors, (7400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:47,333 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:47,333 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:47,355 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-11 16:45:47,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-10-11 16:45:47,534 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting t2Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:47,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:47,535 INFO L85 PathProgramCache]: Analyzing trace with hash -278628539, now seen corresponding path program 2 times [2024-10-11 16:45:47,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:47,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963190947] [2024-10-11 16:45:47,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:47,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:47,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:48,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1582 backedges. 0 proven. 1582 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:48,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:48,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963190947] [2024-10-11 16:45:48,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963190947] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:45:48,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [767470800] [2024-10-11 16:45:48,705 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 16:45:48,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:48,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:45:48,707 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:45:48,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 16:45:49,087 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 16:45:49,087 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 16:45:49,089 INFO L255 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-11 16:45:49,097 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:45:49,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-10-11 16:45:49,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2024-10-11 16:45:49,170 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 16:45:49,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2024-10-11 16:45:49,205 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 16:45:49,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2024-10-11 16:45:49,239 INFO L134 CoverageAnalysis]: Checked inductivity of 1582 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1582 trivial. 0 not checked. [2024-10-11 16:45:49,239 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 16:45:49,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [767470800] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:49,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 16:45:49,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-10-11 16:45:49,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088693055] [2024-10-11 16:45:49,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:49,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:49,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:49,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:49,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-11 16:45:49,907 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 363 out of 433 [2024-10-11 16:45:49,909 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 415 places, 396 transitions, 970 flow. Second operand has 6 states, 6 states have (on average 369.6666666666667) internal successors, (2218), 6 states have internal predecessors, (2218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:49,909 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:49,909 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 363 of 433 [2024-10-11 16:45:49,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:50,343 INFO L124 PetriNetUnfolderBase]: 213/2210 cut-off events. [2024-10-11 16:45:50,344 INFO L125 PetriNetUnfolderBase]: For 120/120 co-relation queries the response was YES. [2024-10-11 16:45:50,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3276 conditions, 2210 events. 213/2210 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 6561 event pairs, 173 based on Foata normal form. 0/2144 useless extension candidates. Maximal degree in co-relation 2551. Up to 536 conditions per place. [2024-10-11 16:45:50,351 INFO L140 encePairwiseOnDemand]: 427/433 looper letters, 57 selfloop transitions, 5 changer transitions 0/399 dead transitions. [2024-10-11 16:45:50,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 399 transitions, 1104 flow [2024-10-11 16:45:50,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:50,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:50,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2241 transitions. [2024-10-11 16:45:50,353 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8625866050808314 [2024-10-11 16:45:50,353 INFO L175 Difference]: Start difference. First operand has 415 places, 396 transitions, 970 flow. Second operand 6 states and 2241 transitions. [2024-10-11 16:45:50,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 399 transitions, 1104 flow [2024-10-11 16:45:50,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 413 places, 399 transitions, 1080 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-10-11 16:45:50,361 INFO L231 Difference]: Finished difference. Result has 413 places, 395 transitions, 954 flow [2024-10-11 16:45:50,362 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=944, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=395, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=390, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=954, PETRI_PLACES=413, PETRI_TRANSITIONS=395} [2024-10-11 16:45:50,363 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -5 predicate places. [2024-10-11 16:45:50,363 INFO L471 AbstractCegarLoop]: Abstraction has has 413 places, 395 transitions, 954 flow [2024-10-11 16:45:50,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 369.6666666666667) internal successors, (2218), 6 states have internal predecessors, (2218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:50,363 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:50,364 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:50,384 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-11 16:45:50,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-10-11 16:45:50,565 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting t2Err12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:50,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:50,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1619984550, now seen corresponding path program 1 times [2024-10-11 16:45:50,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:50,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279049257] [2024-10-11 16:45:50,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:50,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:50,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:51,012 INFO L134 CoverageAnalysis]: Checked inductivity of 1583 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1582 trivial. 0 not checked. [2024-10-11 16:45:51,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:51,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279049257] [2024-10-11 16:45:51,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279049257] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:51,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:51,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 16:45:51,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428756229] [2024-10-11 16:45:51,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:51,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 16:45:51,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:51,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 16:45:51,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 16:45:51,028 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 409 out of 433 [2024-10-11 16:45:51,030 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 413 places, 395 transitions, 954 flow. Second operand has 4 states, 4 states have (on average 411.5) internal successors, (1646), 4 states have internal predecessors, (1646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:51,030 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:51,030 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 409 of 433 [2024-10-11 16:45:51,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:51,512 INFO L124 PetriNetUnfolderBase]: 55/2478 cut-off events. [2024-10-11 16:45:51,512 INFO L125 PetriNetUnfolderBase]: For 114/114 co-relation queries the response was YES. [2024-10-11 16:45:51,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2775 conditions, 2478 events. 55/2478 cut-off events. For 114/114 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 7528 event pairs, 15 based on Foata normal form. 4/2378 useless extension candidates. Maximal degree in co-relation 1876. Up to 52 conditions per place. [2024-10-11 16:45:51,520 INFO L140 encePairwiseOnDemand]: 428/433 looper letters, 14 selfloop transitions, 4 changer transitions 0/400 dead transitions. [2024-10-11 16:45:51,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 400 transitions, 1002 flow [2024-10-11 16:45:51,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 16:45:51,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 16:45:51,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1655 transitions. [2024-10-11 16:45:51,522 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9555427251732102 [2024-10-11 16:45:51,522 INFO L175 Difference]: Start difference. First operand has 413 places, 395 transitions, 954 flow. Second operand 4 states and 1655 transitions. [2024-10-11 16:45:51,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 400 transitions, 1002 flow [2024-10-11 16:45:51,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 400 transitions, 992 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:51,530 INFO L231 Difference]: Finished difference. Result has 413 places, 398 transitions, 972 flow [2024-10-11 16:45:51,530 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=944, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=395, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=391, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=972, PETRI_PLACES=413, PETRI_TRANSITIONS=398} [2024-10-11 16:45:51,531 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -5 predicate places. [2024-10-11 16:45:51,531 INFO L471 AbstractCegarLoop]: Abstraction has has 413 places, 398 transitions, 972 flow [2024-10-11 16:45:51,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 411.5) internal successors, (1646), 4 states have internal predecessors, (1646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:51,531 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:51,532 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:51,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-11 16:45:51,532 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting t2Err12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:51,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:51,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1068255428, now seen corresponding path program 1 times [2024-10-11 16:45:51,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:51,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147200891] [2024-10-11 16:45:51,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:51,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:51,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:52,051 INFO L134 CoverageAnalysis]: Checked inductivity of 1583 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1582 trivial. 0 not checked. [2024-10-11 16:45:52,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:52,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147200891] [2024-10-11 16:45:52,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147200891] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:45:52,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671090198] [2024-10-11 16:45:52,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:52,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:52,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:45:52,053 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:45:52,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-11 16:45:52,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:52,633 INFO L255 TraceCheckSpWp]: Trace formula consists of 2139 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 16:45:52,643 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:45:52,666 INFO L134 CoverageAnalysis]: Checked inductivity of 1583 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1583 trivial. 0 not checked. [2024-10-11 16:45:52,667 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 16:45:52,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [671090198] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:52,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 16:45:52,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-11 16:45:52,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144730124] [2024-10-11 16:45:52,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:52,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:52,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:52,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:52,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:52,687 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 408 out of 433 [2024-10-11 16:45:52,688 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 413 places, 398 transitions, 972 flow. Second operand has 3 states, 3 states have (on average 411.6666666666667) internal successors, (1235), 3 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:52,688 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:52,688 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 408 of 433 [2024-10-11 16:45:52,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:53,071 INFO L124 PetriNetUnfolderBase]: 47/2466 cut-off events. [2024-10-11 16:45:53,071 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2024-10-11 16:45:53,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2759 conditions, 2466 events. 47/2466 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 7377 event pairs, 9 based on Foata normal form. 0/2366 useless extension candidates. Maximal degree in co-relation 2263. Up to 34 conditions per place. [2024-10-11 16:45:53,079 INFO L140 encePairwiseOnDemand]: 430/433 looper letters, 12 selfloop transitions, 2 changer transitions 0/398 dead transitions. [2024-10-11 16:45:53,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 398 transitions, 1001 flow [2024-10-11 16:45:53,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:53,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:53,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1239 transitions. [2024-10-11 16:45:53,081 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.953810623556582 [2024-10-11 16:45:53,081 INFO L175 Difference]: Start difference. First operand has 413 places, 398 transitions, 972 flow. Second operand 3 states and 1239 transitions. [2024-10-11 16:45:53,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 414 places, 398 transitions, 1001 flow [2024-10-11 16:45:53,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 413 places, 398 transitions, 999 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 16:45:53,089 INFO L231 Difference]: Finished difference. Result has 413 places, 397 transitions, 972 flow [2024-10-11 16:45:53,090 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=968, PETRI_DIFFERENCE_MINUEND_PLACES=411, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=972, PETRI_PLACES=413, PETRI_TRANSITIONS=397} [2024-10-11 16:45:53,092 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -5 predicate places. [2024-10-11 16:45:53,093 INFO L471 AbstractCegarLoop]: Abstraction has has 413 places, 397 transitions, 972 flow [2024-10-11 16:45:53,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 411.6666666666667) internal successors, (1235), 3 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:53,094 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:53,094 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:53,119 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-11 16:45:53,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-10-11 16:45:53,295 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting t2Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:53,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:53,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1946786064, now seen corresponding path program 1 times [2024-10-11 16:45:53,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:53,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427465186] [2024-10-11 16:45:53,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:53,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:53,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:54,245 INFO L134 CoverageAnalysis]: Checked inductivity of 1582 backedges. 0 proven. 1582 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:54,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:54,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427465186] [2024-10-11 16:45:54,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427465186] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:45:54,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647717251] [2024-10-11 16:45:54,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:54,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:54,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:45:54,249 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:45:54,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-11 16:45:54,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:54,919 INFO L255 TraceCheckSpWp]: Trace formula consists of 2153 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 16:45:54,928 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:45:55,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1582 backedges. 0 proven. 1582 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:55,465 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 16:45:56,156 INFO L134 CoverageAnalysis]: Checked inductivity of 1582 backedges. 0 proven. 1582 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:56,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [647717251] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 16:45:56,157 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 16:45:56,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-10-11 16:45:56,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194680862] [2024-10-11 16:45:56,157 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 16:45:56,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-11 16:45:56,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:56,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-11 16:45:56,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-10-11 16:45:56,358 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 409 out of 433 [2024-10-11 16:45:56,365 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 413 places, 397 transitions, 972 flow. Second operand has 34 states, 34 states have (on average 411.05882352941177) internal successors, (13976), 34 states have internal predecessors, (13976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:56,365 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:56,365 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 409 of 433 [2024-10-11 16:45:56,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:57,966 INFO L124 PetriNetUnfolderBase]: 117/4026 cut-off events. [2024-10-11 16:45:57,966 INFO L125 PetriNetUnfolderBase]: For 575/575 co-relation queries the response was YES. [2024-10-11 16:45:57,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4802 conditions, 4026 events. 117/4026 cut-off events. For 575/575 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 10664 event pairs, 8 based on Foata normal form. 16/3925 useless extension candidates. Maximal degree in co-relation 4748. Up to 66 conditions per place. [2024-10-11 16:45:57,979 INFO L140 encePairwiseOnDemand]: 427/433 looper letters, 68 selfloop transitions, 45 changer transitions 0/477 dead transitions. [2024-10-11 16:45:57,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 477 transitions, 1642 flow [2024-10-11 16:45:57,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-10-11 16:45:57,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2024-10-11 16:45:57,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 18526 transitions. [2024-10-11 16:45:57,990 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.950782653323069 [2024-10-11 16:45:57,990 INFO L175 Difference]: Start difference. First operand has 413 places, 397 transitions, 972 flow. Second operand 45 states and 18526 transitions. [2024-10-11 16:45:57,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 477 transitions, 1642 flow [2024-10-11 16:45:57,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 455 places, 477 transitions, 1638 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 16:45:58,000 INFO L231 Difference]: Finished difference. Result has 464 places, 422 transitions, 1270 flow [2024-10-11 16:45:58,001 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=968, PETRI_DIFFERENCE_MINUEND_PLACES=411, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=374, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=1270, PETRI_PLACES=464, PETRI_TRANSITIONS=422} [2024-10-11 16:45:58,001 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, 46 predicate places. [2024-10-11 16:45:58,001 INFO L471 AbstractCegarLoop]: Abstraction has has 464 places, 422 transitions, 1270 flow [2024-10-11 16:45:58,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 411.05882352941177) internal successors, (13976), 34 states have internal predecessors, (13976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:58,003 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:58,004 INFO L204 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:58,029 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-11 16:45:58,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:58,205 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting t2Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:58,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:58,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1938185008, now seen corresponding path program 2 times [2024-10-11 16:45:58,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:58,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46773092] [2024-10-11 16:45:58,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:58,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:58,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:46:01,878 INFO L134 CoverageAnalysis]: Checked inductivity of 7890 backedges. 0 proven. 7890 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:46:01,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:46:01,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46773092] [2024-10-11 16:46:01,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46773092] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:46:01,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466570162] [2024-10-11 16:46:01,879 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 16:46:01,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:46:01,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:46:01,881 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:46:01,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-11 16:46:02,543 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 16:46:02,543 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 16:46:02,547 INFO L255 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-11 16:46:02,564 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:46:02,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-10-11 16:46:02,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2024-10-11 16:46:02,651 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 16:46:02,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2024-10-11 16:46:02,694 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 16:46:02,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2024-10-11 16:46:02,737 INFO L134 CoverageAnalysis]: Checked inductivity of 7890 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7890 trivial. 0 not checked. [2024-10-11 16:46:02,738 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 16:46:02,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466570162] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:46:02,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 16:46:02,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [33] total 37 [2024-10-11 16:46:02,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401569720] [2024-10-11 16:46:02,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:46:02,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:46:02,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:46:02,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:46:02,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=1030, Unknown=0, NotChecked=0, Total=1332 [2024-10-11 16:46:03,352 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 353 out of 433 [2024-10-11 16:46:03,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 422 transitions, 1270 flow. Second operand has 6 states, 6 states have (on average 359.6666666666667) internal successors, (2158), 6 states have internal predecessors, (2158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:46:03,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:46:03,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 353 of 433 [2024-10-11 16:46:03,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:46:04,701 INFO L124 PetriNetUnfolderBase]: 461/4344 cut-off events. [2024-10-11 16:46:04,701 INFO L125 PetriNetUnfolderBase]: For 574/574 co-relation queries the response was YES. [2024-10-11 16:46:04,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6791 conditions, 4344 events. 461/4344 cut-off events. For 574/574 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 14940 event pairs, 351 based on Foata normal form. 0/4268 useless extension candidates. Maximal degree in co-relation 5403. Up to 1078 conditions per place. [2024-10-11 16:46:04,711 INFO L140 encePairwiseOnDemand]: 424/433 looper letters, 64 selfloop transitions, 6 changer transitions 0/423 dead transitions. [2024-10-11 16:46:04,711 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 423 transitions, 1416 flow [2024-10-11 16:46:04,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:46:04,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:46:04,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2191 transitions. [2024-10-11 16:46:04,713 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8433410315627405 [2024-10-11 16:46:04,713 INFO L175 Difference]: Start difference. First operand has 464 places, 422 transitions, 1270 flow. Second operand 6 states and 2191 transitions. [2024-10-11 16:46:04,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 423 transitions, 1416 flow [2024-10-11 16:46:04,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 448 places, 423 transitions, 1360 flow, removed 10 selfloop flow, removed 18 redundant places. [2024-10-11 16:46:04,724 INFO L231 Difference]: Finished difference. Result has 448 places, 419 transitions, 1220 flow [2024-10-11 16:46:04,725 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=1208, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1220, PETRI_PLACES=448, PETRI_TRANSITIONS=419} [2024-10-11 16:46:04,725 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, 30 predicate places. [2024-10-11 16:46:04,725 INFO L471 AbstractCegarLoop]: Abstraction has has 448 places, 419 transitions, 1220 flow [2024-10-11 16:46:04,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 359.6666666666667) internal successors, (2158), 6 states have internal predecessors, (2158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:46:04,726 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:46:04,726 INFO L204 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:46:04,747 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-11 16:46:04,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,10 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:46:04,927 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting t2Err13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:46:04,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:46:04,928 INFO L85 PathProgramCache]: Analyzing trace with hash -2012554120, now seen corresponding path program 1 times [2024-10-11 16:46:04,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:46:04,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042987963] [2024-10-11 16:46:04,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:46:04,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:46:05,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:46:05,854 INFO L134 CoverageAnalysis]: Checked inductivity of 7891 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7890 trivial. 0 not checked. [2024-10-11 16:46:05,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:46:05,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042987963] [2024-10-11 16:46:05,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042987963] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:46:05,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739484632] [2024-10-11 16:46:05,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:46:05,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:46:05,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:46:05,856 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:46:05,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-11 16:46:06,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:46:06,934 INFO L255 TraceCheckSpWp]: Trace formula consists of 4075 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 16:46:06,947 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:46:06,979 INFO L134 CoverageAnalysis]: Checked inductivity of 7891 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7891 trivial. 0 not checked. [2024-10-11 16:46:06,980 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 16:46:06,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739484632] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:46:06,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 16:46:06,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-11 16:46:06,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494305482] [2024-10-11 16:46:06,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:46:06,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:46:06,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:46:06,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:46:06,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:46:07,001 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 408 out of 433 [2024-10-11 16:46:07,003 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 419 transitions, 1220 flow. Second operand has 3 states, 3 states have (on average 411.6666666666667) internal successors, (1235), 3 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:46:07,003 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:46:07,003 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 408 of 433 [2024-10-11 16:46:07,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:46:07,949 INFO L124 PetriNetUnfolderBase]: 59/3938 cut-off events. [2024-10-11 16:46:07,949 INFO L125 PetriNetUnfolderBase]: For 524/524 co-relation queries the response was YES. [2024-10-11 16:46:07,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4557 conditions, 3938 events. 59/3938 cut-off events. For 524/524 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 9653 event pairs, 7 based on Foata normal form. 4/3850 useless extension candidates. Maximal degree in co-relation 3768. Up to 60 conditions per place. [2024-10-11 16:46:07,957 INFO L140 encePairwiseOnDemand]: 431/433 looper letters, 9 selfloop transitions, 0 changer transitions 3/419 dead transitions. [2024-10-11 16:46:07,957 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 449 places, 419 transitions, 1245 flow [2024-10-11 16:46:07,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:46:07,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:46:07,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1237 transitions. [2024-10-11 16:46:07,959 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9522709776751347 [2024-10-11 16:46:07,959 INFO L175 Difference]: Start difference. First operand has 448 places, 419 transitions, 1220 flow. Second operand 3 states and 1237 transitions. [2024-10-11 16:46:07,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 449 places, 419 transitions, 1245 flow [2024-10-11 16:46:07,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 419 transitions, 1233 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:46:07,968 INFO L231 Difference]: Finished difference. Result has 444 places, 416 transitions, 1202 flow [2024-10-11 16:46:07,968 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=1206, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=418, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1202, PETRI_PLACES=444, PETRI_TRANSITIONS=416} [2024-10-11 16:46:07,969 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, 26 predicate places. [2024-10-11 16:46:07,969 INFO L471 AbstractCegarLoop]: Abstraction has has 444 places, 416 transitions, 1202 flow [2024-10-11 16:46:07,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 411.6666666666667) internal successors, (1235), 3 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:46:07,969 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:46:07,970 INFO L204 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:46:07,995 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-10-11 16:46:08,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-10-11 16:46:08,170 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting t2Err4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:46:08,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:46:08,171 INFO L85 PathProgramCache]: Analyzing trace with hash -386475884, now seen corresponding path program 1 times [2024-10-11 16:46:08,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:46:08,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301829284] [2024-10-11 16:46:08,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:46:08,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:46:08,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:46:11,053 INFO L134 CoverageAnalysis]: Checked inductivity of 7890 backedges. 0 proven. 7890 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:46:11,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:46:11,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301829284] [2024-10-11 16:46:11,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301829284] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:46:11,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964998221] [2024-10-11 16:46:11,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:46:11,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:46:11,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:46:11,056 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:46:11,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-11 16:46:12,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:46:12,252 INFO L255 TraceCheckSpWp]: Trace formula consists of 4107 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-11 16:46:12,264 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:46:13,275 INFO L134 CoverageAnalysis]: Checked inductivity of 7890 backedges. 0 proven. 7890 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:46:13,275 INFO L311 TraceCheckSpWp]: Computing backward predicates...