./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/goblint-regression/06-symbeq_02-funloop_norace.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ebedbc62bd44b0c214a81c07c6f99e850a5d96675b77716f8547d1b39e8b2cf8 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 13:45:14,932 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 13:45:14,972 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-20 13:45:14,975 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 13:45:14,976 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 13:45:14,991 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 13:45:14,991 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 13:45:14,992 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 13:45:14,992 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 13:45:14,992 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 13:45:14,993 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 13:45:14,993 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 13:45:14,994 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 13:45:14,994 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 13:45:14,994 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 13:45:14,994 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 13:45:14,995 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 13:45:14,995 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 13:45:14,995 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 13:45:14,996 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 13:45:14,996 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 13:45:14,996 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 13:45:14,997 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-20 13:45:14,997 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 13:45:14,997 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 13:45:14,998 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 13:45:14,998 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 13:45:14,998 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 13:45:14,999 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 13:45:14,999 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 13:45:14,999 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 13:45:14,999 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:45:15,000 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 13:45:15,000 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 13:45:15,000 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 13:45:15,000 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 13:45:15,001 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 13:45:15,003 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 13:45:15,004 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 13:45:15,004 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 13:45:15,004 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 13:45:15,005 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebedbc62bd44b0c214a81c07c6f99e850a5d96675b77716f8547d1b39e8b2cf8 [2024-11-20 13:45:15,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 13:45:15,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 13:45:15,240 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 13:45:15,240 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 13:45:15,241 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 13:45:15,242 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i [2024-11-20 13:45:16,604 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 13:45:16,782 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 13:45:16,783 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i [2024-11-20 13:45:16,799 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be9602cac/6ef58991f2714ad2ba7accdb78e0909b/FLAG4272d123a [2024-11-20 13:45:16,818 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be9602cac/6ef58991f2714ad2ba7accdb78e0909b [2024-11-20 13:45:16,820 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 13:45:16,821 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 13:45:16,822 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 13:45:16,822 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 13:45:16,826 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 13:45:16,827 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:45:16" (1/1) ... [2024-11-20 13:45:16,828 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d3bd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:16, skipping insertion in model container [2024-11-20 13:45:16,828 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:45:16" (1/1) ... [2024-11-20 13:45:16,873 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 13:45:17,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:45:17,267 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 13:45:17,300 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:45:17,347 INFO L204 MainTranslator]: Completed translation [2024-11-20 13:45:17,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:17 WrapperNode [2024-11-20 13:45:17,347 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 13:45:17,348 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 13:45:17,348 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 13:45:17,348 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 13:45:17,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:17" (1/1) ... [2024-11-20 13:45:17,373 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:17" (1/1) ... [2024-11-20 13:45:17,405 INFO L138 Inliner]: procedures = 263, calls = 70, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 156 [2024-11-20 13:45:17,408 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 13:45:17,409 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 13:45:17,409 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 13:45:17,409 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 13:45:17,417 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:17" (1/1) ... [2024-11-20 13:45:17,418 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:17" (1/1) ... [2024-11-20 13:45:17,423 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:17" (1/1) ... [2024-11-20 13:45:17,426 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:17" (1/1) ... [2024-11-20 13:45:17,437 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:17" (1/1) ... [2024-11-20 13:45:17,440 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:17" (1/1) ... [2024-11-20 13:45:17,444 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:17" (1/1) ... [2024-11-20 13:45:17,449 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:17" (1/1) ... [2024-11-20 13:45:17,451 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 13:45:17,456 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 13:45:17,456 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 13:45:17,456 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 13:45:17,456 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:17" (1/1) ... [2024-11-20 13:45:17,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:45:17,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:45:17,492 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 13:45:17,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 13:45:17,532 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-20 13:45:17,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-20 13:45:17,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-20 13:45:17,532 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-20 13:45:17,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 13:45:17,533 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-20 13:45:17,533 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-20 13:45:17,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-20 13:45:17,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 13:45:17,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 13:45:17,535 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 13:45:17,666 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 13:45:17,668 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 13:45:17,918 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 13:45:17,918 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 13:45:17,950 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 13:45:17,951 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-20 13:45:17,951 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:45:17 BoogieIcfgContainer [2024-11-20 13:45:17,951 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 13:45:17,953 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 13:45:17,953 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 13:45:17,956 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 13:45:17,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:45:16" (1/3) ... [2024-11-20 13:45:17,956 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a066d73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:45:17, skipping insertion in model container [2024-11-20 13:45:17,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:17" (2/3) ... [2024-11-20 13:45:17,957 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a066d73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:45:17, skipping insertion in model container [2024-11-20 13:45:17,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:45:17" (3/3) ... [2024-11-20 13:45:17,958 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_02-funloop_norace.i [2024-11-20 13:45:17,973 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 13:45:17,973 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-20 13:45:17,974 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 13:45:18,042 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 13:45:18,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 162 transitions, 328 flow [2024-11-20 13:45:18,138 INFO L124 PetriNetUnfolderBase]: 6/161 cut-off events. [2024-11-20 13:45:18,139 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:45:18,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 161 events. 6/161 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 126 event pairs, 0 based on Foata normal form. 0/151 useless extension candidates. Maximal degree in co-relation 80. Up to 2 conditions per place. [2024-11-20 13:45:18,150 INFO L82 GeneralOperation]: Start removeDead. Operand has 160 places, 162 transitions, 328 flow [2024-11-20 13:45:18,158 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 159 places, 161 transitions, 325 flow [2024-11-20 13:45:18,167 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:45:18,173 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;@4ad6f33f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:45:18,173 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-20 13:45:18,195 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:45:18,195 INFO L124 PetriNetUnfolderBase]: 4/119 cut-off events. [2024-11-20 13:45:18,195 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:45:18,195 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:18,196 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] [2024-11-20 13:45:18,196 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:45:18,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:18,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1917384507, now seen corresponding path program 1 times [2024-11-20 13:45:18,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:18,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038992326] [2024-11-20 13:45:18,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:18,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:18,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:18,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:18,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:18,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038992326] [2024-11-20 13:45:18,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038992326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:18,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:18,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 13:45:18,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238262283] [2024-11-20 13:45:18,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:18,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:45:18,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:18,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:45:18,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:45:18,615 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 162 [2024-11-20 13:45:18,618 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 161 transitions, 325 flow. Second operand has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:18,618 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:18,618 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 162 [2024-11-20 13:45:18,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:18,743 INFO L124 PetriNetUnfolderBase]: 13/246 cut-off events. [2024-11-20 13:45:18,747 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 13:45:18,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 246 events. 13/246 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 399 event pairs, 6 based on Foata normal form. 10/242 useless extension candidates. Maximal degree in co-relation 183. Up to 28 conditions per place. [2024-11-20 13:45:18,755 INFO L140 encePairwiseOnDemand]: 156/162 looper letters, 10 selfloop transitions, 2 changer transitions 0/159 dead transitions. [2024-11-20 13:45:18,755 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 159 transitions, 345 flow [2024-11-20 13:45:18,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:45:18,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:45:18,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 461 transitions. [2024-11-20 13:45:18,772 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.948559670781893 [2024-11-20 13:45:18,773 INFO L175 Difference]: Start difference. First operand has 159 places, 161 transitions, 325 flow. Second operand 3 states and 461 transitions. [2024-11-20 13:45:18,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 159 transitions, 345 flow [2024-11-20 13:45:18,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 159 transitions, 344 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:45:18,780 INFO L231 Difference]: Finished difference. Result has 161 places, 159 transitions, 330 flow [2024-11-20 13:45:18,782 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=330, PETRI_PLACES=161, PETRI_TRANSITIONS=159} [2024-11-20 13:45:18,787 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 2 predicate places. [2024-11-20 13:45:18,787 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 159 transitions, 330 flow [2024-11-20 13:45:18,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:18,788 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:18,788 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] [2024-11-20 13:45:18,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 13:45:18,788 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:45:18,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:18,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1917798043, now seen corresponding path program 1 times [2024-11-20 13:45:18,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:18,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416093521] [2024-11-20 13:45:18,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:18,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:18,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:19,060 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:19,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:19,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416093521] [2024-11-20 13:45:19,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416093521] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:45:19,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [121847228] [2024-11-20 13:45:19,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:19,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:19,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:45:19,064 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:45:19,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 13:45:19,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:19,170 INFO L255 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 13:45:19,177 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:45:19,253 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:19,255 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 13:45:19,300 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:19,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [121847228] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 13:45:19,301 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 13:45:19,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-20 13:45:19,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508799241] [2024-11-20 13:45:19,302 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 13:45:19,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 13:45:19,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:19,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 13:45:19,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-20 13:45:19,331 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 162 [2024-11-20 13:45:19,333 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 159 transitions, 330 flow. Second operand has 10 states, 10 states have (on average 147.0) internal successors, (1470), 10 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:19,333 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:19,333 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 162 [2024-11-20 13:45:19,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:19,457 INFO L124 PetriNetUnfolderBase]: 13/253 cut-off events. [2024-11-20 13:45:19,457 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 13:45:19,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304 conditions, 253 events. 13/253 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 394 event pairs, 6 based on Foata normal form. 2/241 useless extension candidates. Maximal degree in co-relation 221. Up to 28 conditions per place. [2024-11-20 13:45:19,460 INFO L140 encePairwiseOnDemand]: 156/162 looper letters, 14 selfloop transitions, 9 changer transitions 0/167 dead transitions. [2024-11-20 13:45:19,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 167 transitions, 394 flow [2024-11-20 13:45:19,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 13:45:19,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 13:45:19,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1330 transitions. [2024-11-20 13:45:19,465 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9122085048010974 [2024-11-20 13:45:19,465 INFO L175 Difference]: Start difference. First operand has 161 places, 159 transitions, 330 flow. Second operand 9 states and 1330 transitions. [2024-11-20 13:45:19,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 167 transitions, 394 flow [2024-11-20 13:45:19,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 167 transitions, 392 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:45:19,468 INFO L231 Difference]: Finished difference. Result has 171 places, 165 transitions, 378 flow [2024-11-20 13:45:19,469 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=378, PETRI_PLACES=171, PETRI_TRANSITIONS=165} [2024-11-20 13:45:19,469 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 12 predicate places. [2024-11-20 13:45:19,469 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 165 transitions, 378 flow [2024-11-20 13:45:19,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 147.0) internal successors, (1470), 10 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:19,470 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:19,471 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-20 13:45:19,478 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 13:45:19,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:19,672 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:45:19,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:19,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1842992485, now seen corresponding path program 2 times [2024-11-20 13:45:19,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:19,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024228908] [2024-11-20 13:45:19,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:19,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:19,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:19,901 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:19,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:19,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024228908] [2024-11-20 13:45:19,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024228908] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:45:19,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442420655] [2024-11-20 13:45:19,904 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 13:45:19,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:19,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:45:19,910 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:45:19,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 13:45:19,978 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-20 13:45:19,978 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 13:45:19,979 INFO L255 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-20 13:45:19,983 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:45:20,019 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 11 treesize of output 7 [2024-11-20 13:45:20,042 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 21 treesize of output 20 [2024-11-20 13:45:20,074 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:45:20,075 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 30 treesize of output 32 [2024-11-20 13:45:20,108 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:45:20,109 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 39 treesize of output 44 [2024-11-20 13:45:20,137 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-20 13:45:20,138 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:45:20,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1442420655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:20,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:45:20,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-20 13:45:20,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263329497] [2024-11-20 13:45:20,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:20,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:45:20,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:20,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:45:20,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-20 13:45:20,228 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 162 [2024-11-20 13:45:20,229 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 165 transitions, 378 flow. Second operand has 6 states, 6 states have (on average 137.5) internal successors, (825), 6 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:20,229 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:20,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 162 [2024-11-20 13:45:20,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:20,391 INFO L124 PetriNetUnfolderBase]: 150/840 cut-off events. [2024-11-20 13:45:20,391 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-20 13:45:20,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1168 conditions, 840 events. 150/840 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4704 event pairs, 62 based on Foata normal form. 0/781 useless extension candidates. Maximal degree in co-relation 1057. Up to 240 conditions per place. [2024-11-20 13:45:20,395 INFO L140 encePairwiseOnDemand]: 151/162 looper letters, 30 selfloop transitions, 22 changer transitions 0/194 dead transitions. [2024-11-20 13:45:20,395 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 194 transitions, 540 flow [2024-11-20 13:45:20,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:45:20,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:45:20,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 869 transitions. [2024-11-20 13:45:20,397 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8940329218106996 [2024-11-20 13:45:20,397 INFO L175 Difference]: Start difference. First operand has 171 places, 165 transitions, 378 flow. Second operand 6 states and 869 transitions. [2024-11-20 13:45:20,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 194 transitions, 540 flow [2024-11-20 13:45:20,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 194 transitions, 534 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-20 13:45:20,402 INFO L231 Difference]: Finished difference. Result has 180 places, 186 transitions, 522 flow [2024-11-20 13:45:20,402 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=522, PETRI_PLACES=180, PETRI_TRANSITIONS=186} [2024-11-20 13:45:20,403 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 21 predicate places. [2024-11-20 13:45:20,403 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 186 transitions, 522 flow [2024-11-20 13:45:20,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 137.5) internal successors, (825), 6 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:20,403 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:20,404 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-20 13:45:20,414 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-20 13:45:20,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-20 13:45:20,605 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:45:20,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:20,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1999671179, now seen corresponding path program 1 times [2024-11-20 13:45:20,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:20,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189100574] [2024-11-20 13:45:20,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:20,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:20,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:20,728 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:20,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:20,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189100574] [2024-11-20 13:45:20,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189100574] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:45:20,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369246681] [2024-11-20 13:45:20,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:20,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:20,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:45:20,732 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:45:20,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 13:45:20,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:20,799 INFO L255 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-20 13:45:20,801 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:45:20,832 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:20,834 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 13:45:20,913 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:20,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369246681] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 13:45:20,913 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 13:45:20,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-20 13:45:20,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662515040] [2024-11-20 13:45:20,913 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 13:45:20,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-20 13:45:20,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:20,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-20 13:45:20,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-20 13:45:20,948 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 162 [2024-11-20 13:45:20,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 186 transitions, 522 flow. Second operand has 18 states, 18 states have (on average 147.0) internal successors, (2646), 18 states have internal predecessors, (2646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:20,951 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:20,951 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 162 [2024-11-20 13:45:20,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:21,177 INFO L124 PetriNetUnfolderBase]: 61/586 cut-off events. [2024-11-20 13:45:21,177 INFO L125 PetriNetUnfolderBase]: For 50/53 co-relation queries the response was YES. [2024-11-20 13:45:21,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 881 conditions, 586 events. 61/586 cut-off events. For 50/53 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2312 event pairs, 11 based on Foata normal form. 4/556 useless extension candidates. Maximal degree in co-relation 693. Up to 63 conditions per place. [2024-11-20 13:45:21,180 INFO L140 encePairwiseOnDemand]: 156/162 looper letters, 18 selfloop transitions, 21 changer transitions 0/204 dead transitions. [2024-11-20 13:45:21,180 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 204 transitions, 688 flow [2024-11-20 13:45:21,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-20 13:45:21,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-20 13:45:21,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3088 transitions. [2024-11-20 13:45:21,186 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9077013521457966 [2024-11-20 13:45:21,186 INFO L175 Difference]: Start difference. First operand has 180 places, 186 transitions, 522 flow. Second operand 21 states and 3088 transitions. [2024-11-20 13:45:21,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 204 transitions, 688 flow [2024-11-20 13:45:21,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 204 transitions, 688 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:45:21,191 INFO L231 Difference]: Finished difference. Result has 205 places, 199 transitions, 652 flow [2024-11-20 13:45:21,191 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=522, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=652, PETRI_PLACES=205, PETRI_TRANSITIONS=199} [2024-11-20 13:45:21,192 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 46 predicate places. [2024-11-20 13:45:21,192 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 199 transitions, 652 flow [2024-11-20 13:45:21,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 147.0) internal successors, (2646), 18 states have internal predecessors, (2646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:21,194 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:21,194 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-20 13:45:21,202 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-20 13:45:21,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:21,395 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:45:21,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:21,396 INFO L85 PathProgramCache]: Analyzing trace with hash -104290187, now seen corresponding path program 2 times [2024-11-20 13:45:21,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:21,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937388724] [2024-11-20 13:45:21,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:21,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:21,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:21,885 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:21,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:21,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937388724] [2024-11-20 13:45:21,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937388724] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:45:21,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571912136] [2024-11-20 13:45:21,890 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 13:45:21,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:21,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:45:21,891 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:45:21,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-20 13:45:22,004 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-20 13:45:22,004 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 13:45:22,009 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-20 13:45:22,012 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:45:22,024 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 11 treesize of output 7 [2024-11-20 13:45:22,044 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 21 treesize of output 20 [2024-11-20 13:45:22,068 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:45:22,069 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 30 treesize of output 32 [2024-11-20 13:45:22,096 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:45:22,096 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 39 treesize of output 44 [2024-11-20 13:45:22,126 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-20 13:45:22,127 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:45:22,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571912136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:22,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:45:22,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-20 13:45:22,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756354021] [2024-11-20 13:45:22,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:22,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:45:22,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:22,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:45:22,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-20 13:45:22,268 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 162 [2024-11-20 13:45:22,269 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 199 transitions, 652 flow. Second operand has 6 states, 6 states have (on average 137.5) internal successors, (825), 6 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:22,269 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:22,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 162 [2024-11-20 13:45:22,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:22,468 INFO L124 PetriNetUnfolderBase]: 206/1098 cut-off events. [2024-11-20 13:45:22,468 INFO L125 PetriNetUnfolderBase]: For 231/251 co-relation queries the response was YES. [2024-11-20 13:45:22,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1886 conditions, 1098 events. 206/1098 cut-off events. For 231/251 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 6544 event pairs, 62 based on Foata normal form. 5/1041 useless extension candidates. Maximal degree in co-relation 1691. Up to 330 conditions per place. [2024-11-20 13:45:22,478 INFO L140 encePairwiseOnDemand]: 151/162 looper letters, 47 selfloop transitions, 30 changer transitions 0/236 dead transitions. [2024-11-20 13:45:22,482 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 236 transitions, 922 flow [2024-11-20 13:45:22,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:45:22,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:45:22,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 869 transitions. [2024-11-20 13:45:22,484 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8940329218106996 [2024-11-20 13:45:22,484 INFO L175 Difference]: Start difference. First operand has 205 places, 199 transitions, 652 flow. Second operand 6 states and 869 transitions. [2024-11-20 13:45:22,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 236 transitions, 922 flow [2024-11-20 13:45:22,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 236 transitions, 898 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-20 13:45:22,491 INFO L231 Difference]: Finished difference. Result has 209 places, 228 transitions, 878 flow [2024-11-20 13:45:22,491 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=628, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=878, PETRI_PLACES=209, PETRI_TRANSITIONS=228} [2024-11-20 13:45:22,492 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 50 predicate places. [2024-11-20 13:45:22,492 INFO L471 AbstractCegarLoop]: Abstraction has has 209 places, 228 transitions, 878 flow [2024-11-20 13:45:22,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 137.5) internal successors, (825), 6 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:22,493 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:22,493 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-20 13:45:22,501 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-20 13:45:22,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:22,698 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:45:22,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:22,698 INFO L85 PathProgramCache]: Analyzing trace with hash 170209770, now seen corresponding path program 1 times [2024-11-20 13:45:22,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:22,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117136777] [2024-11-20 13:45:22,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:22,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:23,084 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:23,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:23,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117136777] [2024-11-20 13:45:23,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117136777] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:45:23,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1800911092] [2024-11-20 13:45:23,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:23,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:23,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:45:23,091 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:45:23,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-20 13:45:23,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:23,173 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-20 13:45:23,175 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:45:23,278 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:23,278 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 13:45:23,536 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:23,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1800911092] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 13:45:23,537 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 13:45:23,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-20 13:45:23,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762581515] [2024-11-20 13:45:23,537 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 13:45:23,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-20 13:45:23,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:23,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-20 13:45:23,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-20 13:45:23,598 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 162 [2024-11-20 13:45:23,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 228 transitions, 878 flow. Second operand has 23 states, 23 states have (on average 147.08695652173913) internal successors, (3383), 23 states have internal predecessors, (3383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:23,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:23,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 162 [2024-11-20 13:45:23,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:24,061 INFO L124 PetriNetUnfolderBase]: 117/846 cut-off events. [2024-11-20 13:45:24,061 INFO L125 PetriNetUnfolderBase]: For 365/378 co-relation queries the response was YES. [2024-11-20 13:45:24,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1585 conditions, 846 events. 117/846 cut-off events. For 365/378 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4358 event pairs, 14 based on Foata normal form. 8/817 useless extension candidates. Maximal degree in co-relation 1309. Up to 84 conditions per place. [2024-11-20 13:45:24,065 INFO L140 encePairwiseOnDemand]: 156/162 looper letters, 21 selfloop transitions, 30 changer transitions 0/245 dead transitions. [2024-11-20 13:45:24,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 245 transitions, 1102 flow [2024-11-20 13:45:24,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-20 13:45:24,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-20 13:45:24,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4404 transitions. [2024-11-20 13:45:24,071 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9061728395061729 [2024-11-20 13:45:24,071 INFO L175 Difference]: Start difference. First operand has 209 places, 228 transitions, 878 flow. Second operand 30 states and 4404 transitions. [2024-11-20 13:45:24,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 245 transitions, 1102 flow [2024-11-20 13:45:24,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 245 transitions, 1102 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:45:24,076 INFO L231 Difference]: Finished difference. Result has 242 places, 238 transitions, 1030 flow [2024-11-20 13:45:24,077 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=878, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1030, PETRI_PLACES=242, PETRI_TRANSITIONS=238} [2024-11-20 13:45:24,077 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 83 predicate places. [2024-11-20 13:45:24,077 INFO L471 AbstractCegarLoop]: Abstraction has has 242 places, 238 transitions, 1030 flow [2024-11-20 13:45:24,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 147.08695652173913) internal successors, (3383), 23 states have internal predecessors, (3383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:24,079 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:24,079 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:24,090 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-20 13:45:24,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:45:24,284 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:45:24,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:24,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1618788682, now seen corresponding path program 2 times [2024-11-20 13:45:24,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:24,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924738844] [2024-11-20 13:45:24,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:24,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:24,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:24,697 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-20 13:45:24,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:24,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924738844] [2024-11-20 13:45:24,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924738844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:24,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:24,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:45:24,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986460158] [2024-11-20 13:45:24,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:24,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:45:24,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:24,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:45:24,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:45:24,875 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 162 [2024-11-20 13:45:24,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 238 transitions, 1030 flow. Second operand has 6 states, 6 states have (on average 132.5) internal successors, (795), 6 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:24,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:24,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 162 [2024-11-20 13:45:24,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:25,487 INFO L124 PetriNetUnfolderBase]: 422/1653 cut-off events. [2024-11-20 13:45:25,487 INFO L125 PetriNetUnfolderBase]: For 1031/1073 co-relation queries the response was YES. [2024-11-20 13:45:25,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3663 conditions, 1653 events. 422/1653 cut-off events. For 1031/1073 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 10530 event pairs, 107 based on Foata normal form. 12/1574 useless extension candidates. Maximal degree in co-relation 3386. Up to 718 conditions per place. [2024-11-20 13:45:25,507 INFO L140 encePairwiseOnDemand]: 147/162 looper letters, 76 selfloop transitions, 57 changer transitions 0/293 dead transitions. [2024-11-20 13:45:25,507 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 293 transitions, 1540 flow [2024-11-20 13:45:25,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:45:25,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:45:25,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 855 transitions. [2024-11-20 13:45:25,509 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8796296296296297 [2024-11-20 13:45:25,509 INFO L175 Difference]: Start difference. First operand has 242 places, 238 transitions, 1030 flow. Second operand 6 states and 855 transitions. [2024-11-20 13:45:25,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 293 transitions, 1540 flow [2024-11-20 13:45:25,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 293 transitions, 1494 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-20 13:45:25,528 INFO L231 Difference]: Finished difference. Result has 234 places, 285 transitions, 1482 flow [2024-11-20 13:45:25,528 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=984, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1482, PETRI_PLACES=234, PETRI_TRANSITIONS=285} [2024-11-20 13:45:25,529 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 75 predicate places. [2024-11-20 13:45:25,529 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 285 transitions, 1482 flow [2024-11-20 13:45:25,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 132.5) internal successors, (795), 6 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:25,529 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:25,529 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:25,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 13:45:25,530 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:45:25,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:25,530 INFO L85 PathProgramCache]: Analyzing trace with hash 883185170, now seen corresponding path program 1 times [2024-11-20 13:45:25,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:25,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222831227] [2024-11-20 13:45:25,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:25,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:25,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:26,175 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-20 13:45:26,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:26,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222831227] [2024-11-20 13:45:26,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222831227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:26,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:26,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:45:26,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886099502] [2024-11-20 13:45:26,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:26,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:45:26,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:26,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:45:26,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:45:26,268 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 162 [2024-11-20 13:45:26,269 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 285 transitions, 1482 flow. Second operand has 6 states, 6 states have (on average 132.5) internal successors, (795), 6 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:26,269 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:26,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 162 [2024-11-20 13:45:26,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:26,603 INFO L124 PetriNetUnfolderBase]: 542/2093 cut-off events. [2024-11-20 13:45:26,603 INFO L125 PetriNetUnfolderBase]: For 2465/2523 co-relation queries the response was YES. [2024-11-20 13:45:26,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5260 conditions, 2093 events. 542/2093 cut-off events. For 2465/2523 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 14550 event pairs, 113 based on Foata normal form. 13/2020 useless extension candidates. Maximal degree in co-relation 5000. Up to 894 conditions per place. [2024-11-20 13:45:26,614 INFO L140 encePairwiseOnDemand]: 147/162 looper letters, 113 selfloop transitions, 71 changer transitions 0/346 dead transitions. [2024-11-20 13:45:26,614 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 346 transitions, 2204 flow [2024-11-20 13:45:26,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:45:26,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:45:26,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 855 transitions. [2024-11-20 13:45:26,616 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8796296296296297 [2024-11-20 13:45:26,616 INFO L175 Difference]: Start difference. First operand has 234 places, 285 transitions, 1482 flow. Second operand 6 states and 855 transitions. [2024-11-20 13:45:26,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 346 transitions, 2204 flow [2024-11-20 13:45:26,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 346 transitions, 2140 flow, removed 32 selfloop flow, removed 0 redundant places. [2024-11-20 13:45:26,628 INFO L231 Difference]: Finished difference. Result has 244 places, 338 transitions, 2094 flow [2024-11-20 13:45:26,629 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=1424, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2094, PETRI_PLACES=244, PETRI_TRANSITIONS=338} [2024-11-20 13:45:26,629 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 85 predicate places. [2024-11-20 13:45:26,629 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 338 transitions, 2094 flow [2024-11-20 13:45:26,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 132.5) internal successors, (795), 6 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:26,630 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:26,630 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:26,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 13:45:26,630 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:45:26,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:26,632 INFO L85 PathProgramCache]: Analyzing trace with hash -448336135, now seen corresponding path program 1 times [2024-11-20 13:45:26,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:26,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596690197] [2024-11-20 13:45:26,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:26,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:26,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:27,135 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-20 13:45:27,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:27,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596690197] [2024-11-20 13:45:27,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596690197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:27,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:27,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 13:45:27,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541127741] [2024-11-20 13:45:27,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:27,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 13:45:27,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:27,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 13:45:27,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-20 13:45:28,179 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-20 13:45:28,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 338 transitions, 2094 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:28,181 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:28,181 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-20 13:45:28,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:29,097 INFO L124 PetriNetUnfolderBase]: 1065/4194 cut-off events. [2024-11-20 13:45:29,098 INFO L125 PetriNetUnfolderBase]: For 5704/5837 co-relation queries the response was YES. [2024-11-20 13:45:29,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11555 conditions, 4194 events. 1065/4194 cut-off events. For 5704/5837 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 33520 event pairs, 161 based on Foata normal form. 43/4211 useless extension candidates. Maximal degree in co-relation 11278. Up to 580 conditions per place. [2024-11-20 13:45:29,121 INFO L140 encePairwiseOnDemand]: 147/162 looper letters, 65 selfloop transitions, 15 changer transitions 6/397 dead transitions. [2024-11-20 13:45:29,122 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 397 transitions, 2384 flow [2024-11-20 13:45:29,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 13:45:29,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 13:45:29,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1277 transitions. [2024-11-20 13:45:29,124 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8758573388203018 [2024-11-20 13:45:29,124 INFO L175 Difference]: Start difference. First operand has 244 places, 338 transitions, 2094 flow. Second operand 9 states and 1277 transitions. [2024-11-20 13:45:29,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 397 transitions, 2384 flow [2024-11-20 13:45:29,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 397 transitions, 2302 flow, removed 41 selfloop flow, removed 0 redundant places. [2024-11-20 13:45:29,242 INFO L231 Difference]: Finished difference. Result has 259 places, 353 transitions, 2130 flow [2024-11-20 13:45:29,243 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=2012, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2130, PETRI_PLACES=259, PETRI_TRANSITIONS=353} [2024-11-20 13:45:29,244 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 100 predicate places. [2024-11-20 13:45:29,244 INFO L471 AbstractCegarLoop]: Abstraction has has 259 places, 353 transitions, 2130 flow [2024-11-20 13:45:29,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:29,245 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:29,245 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:29,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 13:45:29,246 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:45:29,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:29,246 INFO L85 PathProgramCache]: Analyzing trace with hash -869332119, now seen corresponding path program 2 times [2024-11-20 13:45:29,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:29,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026426401] [2024-11-20 13:45:29,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:29,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:29,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:29,690 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-20 13:45:29,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:29,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026426401] [2024-11-20 13:45:29,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026426401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:29,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:29,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 13:45:29,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240267711] [2024-11-20 13:45:29,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:29,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 13:45:29,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:29,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 13:45:29,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-20 13:45:30,700 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-20 13:45:30,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 353 transitions, 2130 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:30,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:30,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-20 13:45:30,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:32,482 INFO L124 PetriNetUnfolderBase]: 2043/7592 cut-off events. [2024-11-20 13:45:32,482 INFO L125 PetriNetUnfolderBase]: For 11092/11371 co-relation queries the response was YES. [2024-11-20 13:45:32,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22329 conditions, 7592 events. 2043/7592 cut-off events. For 11092/11371 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 68088 event pairs, 273 based on Foata normal form. 87/7625 useless extension candidates. Maximal degree in co-relation 22044. Up to 1199 conditions per place. [2024-11-20 13:45:32,543 INFO L140 encePairwiseOnDemand]: 148/162 looper letters, 110 selfloop transitions, 20 changer transitions 3/444 dead transitions. [2024-11-20 13:45:32,543 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 444 transitions, 2796 flow [2024-11-20 13:45:32,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 13:45:32,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 13:45:32,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1276 transitions. [2024-11-20 13:45:32,546 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8751714677640604 [2024-11-20 13:45:32,546 INFO L175 Difference]: Start difference. First operand has 259 places, 353 transitions, 2130 flow. Second operand 9 states and 1276 transitions. [2024-11-20 13:45:32,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 444 transitions, 2796 flow [2024-11-20 13:45:32,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 444 transitions, 2796 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:45:32,596 INFO L231 Difference]: Finished difference. Result has 274 places, 370 transitions, 2310 flow [2024-11-20 13:45:32,597 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=2130, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2310, PETRI_PLACES=274, PETRI_TRANSITIONS=370} [2024-11-20 13:45:32,597 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 115 predicate places. [2024-11-20 13:45:32,597 INFO L471 AbstractCegarLoop]: Abstraction has has 274 places, 370 transitions, 2310 flow [2024-11-20 13:45:32,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:32,598 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:32,598 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:32,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 13:45:32,598 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:45:32,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:32,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1700604081, now seen corresponding path program 3 times [2024-11-20 13:45:32,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:32,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495251625] [2024-11-20 13:45:32,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:32,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:32,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:32,980 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-20 13:45:32,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:32,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495251625] [2024-11-20 13:45:32,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495251625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:32,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:32,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 13:45:32,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180605040] [2024-11-20 13:45:32,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:32,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 13:45:32,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:32,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 13:45:32,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-20 13:45:33,976 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-20 13:45:33,977 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 370 transitions, 2310 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:33,977 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:33,977 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-20 13:45:33,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:35,596 INFO L124 PetriNetUnfolderBase]: 2340/8634 cut-off events. [2024-11-20 13:45:35,597 INFO L125 PetriNetUnfolderBase]: For 14725/15140 co-relation queries the response was YES. [2024-11-20 13:45:35,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26701 conditions, 8634 events. 2340/8634 cut-off events. For 14725/15140 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 78796 event pairs, 290 based on Foata normal form. 92/8667 useless extension candidates. Maximal degree in co-relation 26408. Up to 1316 conditions per place. [2024-11-20 13:45:35,646 INFO L140 encePairwiseOnDemand]: 148/162 looper letters, 117 selfloop transitions, 22 changer transitions 4/454 dead transitions. [2024-11-20 13:45:35,647 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 454 transitions, 3094 flow [2024-11-20 13:45:35,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 13:45:35,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 13:45:35,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1281 transitions. [2024-11-20 13:45:35,652 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8786008230452675 [2024-11-20 13:45:35,652 INFO L175 Difference]: Start difference. First operand has 274 places, 370 transitions, 2310 flow. Second operand 9 states and 1281 transitions. [2024-11-20 13:45:35,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 454 transitions, 3094 flow [2024-11-20 13:45:35,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 454 transitions, 3056 flow, removed 19 selfloop flow, removed 0 redundant places. [2024-11-20 13:45:35,773 INFO L231 Difference]: Finished difference. Result has 287 places, 382 transitions, 2479 flow [2024-11-20 13:45:35,773 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=2296, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2479, PETRI_PLACES=287, PETRI_TRANSITIONS=382} [2024-11-20 13:45:35,774 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 128 predicate places. [2024-11-20 13:45:35,777 INFO L471 AbstractCegarLoop]: Abstraction has has 287 places, 382 transitions, 2479 flow [2024-11-20 13:45:35,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:35,778 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:35,778 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:35,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 13:45:35,778 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:45:35,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:35,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1977146507, now seen corresponding path program 4 times [2024-11-20 13:45:35,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:35,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508919572] [2024-11-20 13:45:35,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:35,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:35,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:36,150 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-20 13:45:36,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:36,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508919572] [2024-11-20 13:45:36,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508919572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:36,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:36,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 13:45:36,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470837948] [2024-11-20 13:45:36,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:36,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 13:45:36,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:36,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 13:45:36,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-20 13:45:37,113 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-20 13:45:37,114 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 382 transitions, 2479 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:37,114 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:37,114 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-20 13:45:37,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:38,982 INFO L124 PetriNetUnfolderBase]: 2637/9651 cut-off events. [2024-11-20 13:45:38,982 INFO L125 PetriNetUnfolderBase]: For 18643/19086 co-relation queries the response was YES. [2024-11-20 13:45:39,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30570 conditions, 9651 events. 2637/9651 cut-off events. For 18643/19086 co-relation queries the response was YES. Maximal size of possible extension queue 259. Compared 90120 event pairs, 292 based on Foata normal form. 107/9691 useless extension candidates. Maximal degree in co-relation 30271. Up to 1577 conditions per place. [2024-11-20 13:45:39,042 INFO L140 encePairwiseOnDemand]: 148/162 looper letters, 132 selfloop transitions, 27 changer transitions 2/472 dead transitions. [2024-11-20 13:45:39,043 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 472 transitions, 3428 flow [2024-11-20 13:45:39,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 13:45:39,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 13:45:39,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1281 transitions. [2024-11-20 13:45:39,044 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8786008230452675 [2024-11-20 13:45:39,044 INFO L175 Difference]: Start difference. First operand has 287 places, 382 transitions, 2479 flow. Second operand 9 states and 1281 transitions. [2024-11-20 13:45:39,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 472 transitions, 3428 flow [2024-11-20 13:45:39,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 472 transitions, 3349 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-11-20 13:45:39,113 INFO L231 Difference]: Finished difference. Result has 297 places, 394 transitions, 2655 flow [2024-11-20 13:45:39,114 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=2453, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2655, PETRI_PLACES=297, PETRI_TRANSITIONS=394} [2024-11-20 13:45:39,114 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 138 predicate places. [2024-11-20 13:45:39,114 INFO L471 AbstractCegarLoop]: Abstraction has has 297 places, 394 transitions, 2655 flow [2024-11-20 13:45:39,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:39,115 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:39,115 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:39,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 13:45:39,115 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:45:39,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:39,116 INFO L85 PathProgramCache]: Analyzing trace with hash -945444439, now seen corresponding path program 5 times [2024-11-20 13:45:39,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:39,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739693190] [2024-11-20 13:45:39,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:39,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:39,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:39,486 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-20 13:45:39,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:39,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739693190] [2024-11-20 13:45:39,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739693190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:39,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:39,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 13:45:39,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166330096] [2024-11-20 13:45:39,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:39,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 13:45:39,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:39,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 13:45:39,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-20 13:45:40,327 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-20 13:45:40,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 394 transitions, 2655 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:40,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:40,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-20 13:45:40,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:42,522 INFO L124 PetriNetUnfolderBase]: 2967/10860 cut-off events. [2024-11-20 13:45:42,522 INFO L125 PetriNetUnfolderBase]: For 23517/24084 co-relation queries the response was YES. [2024-11-20 13:45:42,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35144 conditions, 10860 events. 2967/10860 cut-off events. For 23517/24084 co-relation queries the response was YES. Maximal size of possible extension queue 278. Compared 104246 event pairs, 320 based on Foata normal form. 101/10883 useless extension candidates. Maximal degree in co-relation 34840. Up to 1710 conditions per place. [2024-11-20 13:45:42,598 INFO L140 encePairwiseOnDemand]: 148/162 looper letters, 133 selfloop transitions, 29 changer transitions 2/475 dead transitions. [2024-11-20 13:45:42,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 475 transitions, 3634 flow [2024-11-20 13:45:42,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 13:45:42,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 13:45:42,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1284 transitions. [2024-11-20 13:45:42,599 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8806584362139918 [2024-11-20 13:45:42,600 INFO L175 Difference]: Start difference. First operand has 297 places, 394 transitions, 2655 flow. Second operand 9 states and 1284 transitions. [2024-11-20 13:45:42,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 475 transitions, 3634 flow [2024-11-20 13:45:42,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 475 transitions, 3543 flow, removed 10 selfloop flow, removed 3 redundant places. [2024-11-20 13:45:42,692 INFO L231 Difference]: Finished difference. Result has 308 places, 409 transitions, 2893 flow [2024-11-20 13:45:42,693 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=2614, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=370, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2893, PETRI_PLACES=308, PETRI_TRANSITIONS=409} [2024-11-20 13:45:42,694 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 149 predicate places. [2024-11-20 13:45:42,694 INFO L471 AbstractCegarLoop]: Abstraction has has 308 places, 409 transitions, 2893 flow [2024-11-20 13:45:42,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:42,694 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:42,695 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:42,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 13:45:42,695 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:45:42,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:42,695 INFO L85 PathProgramCache]: Analyzing trace with hash -998215493, now seen corresponding path program 6 times [2024-11-20 13:45:42,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:42,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344930809] [2024-11-20 13:45:42,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:42,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:42,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:43,205 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-20 13:45:43,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:43,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344930809] [2024-11-20 13:45:43,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344930809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:43,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:43,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 13:45:43,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321750736] [2024-11-20 13:45:43,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:43,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 13:45:43,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:43,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 13:45:43,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-20 13:45:44,062 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-20 13:45:44,063 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 409 transitions, 2893 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:44,063 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:44,063 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-20 13:45:44,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:46,393 INFO L124 PetriNetUnfolderBase]: 3289/11996 cut-off events. [2024-11-20 13:45:46,393 INFO L125 PetriNetUnfolderBase]: For 29684/30279 co-relation queries the response was YES. [2024-11-20 13:45:46,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39697 conditions, 11996 events. 3289/11996 cut-off events. For 29684/30279 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 118019 event pairs, 326 based on Foata normal form. 108/12019 useless extension candidates. Maximal degree in co-relation 39387. Up to 1963 conditions per place. [2024-11-20 13:45:46,475 INFO L140 encePairwiseOnDemand]: 148/162 looper letters, 149 selfloop transitions, 34 changer transitions 1/495 dead transitions. [2024-11-20 13:45:46,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 495 transitions, 4017 flow [2024-11-20 13:45:46,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 13:45:46,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 13:45:46,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1284 transitions. [2024-11-20 13:45:46,477 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8806584362139918 [2024-11-20 13:45:46,477 INFO L175 Difference]: Start difference. First operand has 308 places, 409 transitions, 2893 flow. Second operand 9 states and 1284 transitions. [2024-11-20 13:45:46,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 495 transitions, 4017 flow [2024-11-20 13:45:46,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 495 transitions, 3921 flow, removed 27 selfloop flow, removed 2 redundant places. [2024-11-20 13:45:46,591 INFO L231 Difference]: Finished difference. Result has 320 places, 424 transitions, 3136 flow [2024-11-20 13:45:46,592 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=2834, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=380, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3136, PETRI_PLACES=320, PETRI_TRANSITIONS=424} [2024-11-20 13:45:46,592 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 161 predicate places. [2024-11-20 13:45:46,592 INFO L471 AbstractCegarLoop]: Abstraction has has 320 places, 424 transitions, 3136 flow [2024-11-20 13:45:46,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:46,593 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:46,593 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:46,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 13:45:46,593 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:45:46,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:46,593 INFO L85 PathProgramCache]: Analyzing trace with hash 139229261, now seen corresponding path program 7 times [2024-11-20 13:45:46,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:46,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481549728] [2024-11-20 13:45:46,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:46,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:46,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:46,886 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-20 13:45:46,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:46,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481549728] [2024-11-20 13:45:46,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481549728] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:46,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:46,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 13:45:46,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423194360] [2024-11-20 13:45:46,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:46,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 13:45:46,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:46,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 13:45:46,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-20 13:45:47,944 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-20 13:45:47,945 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 424 transitions, 3136 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:47,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:47,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-20 13:45:47,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:50,406 INFO L124 PetriNetUnfolderBase]: 3633/13230 cut-off events. [2024-11-20 13:45:50,407 INFO L125 PetriNetUnfolderBase]: For 37931/38570 co-relation queries the response was YES. [2024-11-20 13:45:50,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44950 conditions, 13230 events. 3633/13230 cut-off events. For 37931/38570 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 133161 event pairs, 413 based on Foata normal form. 100/13230 useless extension candidates. Maximal degree in co-relation 44634. Up to 2106 conditions per place. [2024-11-20 13:45:50,708 INFO L140 encePairwiseOnDemand]: 148/162 looper letters, 148 selfloop transitions, 36 changer transitions 0/495 dead transitions. [2024-11-20 13:45:50,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 495 transitions, 4233 flow [2024-11-20 13:45:50,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 13:45:50,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 13:45:50,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1286 transitions. [2024-11-20 13:45:50,710 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8820301783264746 [2024-11-20 13:45:50,711 INFO L175 Difference]: Start difference. First operand has 320 places, 424 transitions, 3136 flow. Second operand 9 states and 1286 transitions. [2024-11-20 13:45:50,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 495 transitions, 4233 flow [2024-11-20 13:45:50,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 495 transitions, 4133 flow, removed 26 selfloop flow, removed 2 redundant places. [2024-11-20 13:45:50,847 INFO L231 Difference]: Finished difference. Result has 333 places, 443 transitions, 3486 flow [2024-11-20 13:45:50,848 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=3058, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3486, PETRI_PLACES=333, PETRI_TRANSITIONS=443} [2024-11-20 13:45:50,851 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 174 predicate places. [2024-11-20 13:45:50,851 INFO L471 AbstractCegarLoop]: Abstraction has has 333 places, 443 transitions, 3486 flow [2024-11-20 13:45:50,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:50,852 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:50,852 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:50,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 13:45:50,852 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:45:50,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:50,852 INFO L85 PathProgramCache]: Analyzing trace with hash -344748101, now seen corresponding path program 8 times [2024-11-20 13:45:50,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:50,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534937060] [2024-11-20 13:45:50,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:50,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:50,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:51,132 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-20 13:45:51,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:51,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534937060] [2024-11-20 13:45:51,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534937060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:51,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:51,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 13:45:51,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467456940] [2024-11-20 13:45:51,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:51,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 13:45:51,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:51,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 13:45:51,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-20 13:45:51,557 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-20 13:45:51,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 443 transitions, 3486 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:51,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:51,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-20 13:45:51,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:54,491 INFO L124 PetriNetUnfolderBase]: 4229/15229 cut-off events. [2024-11-20 13:45:54,492 INFO L125 PetriNetUnfolderBase]: For 49021/49911 co-relation queries the response was YES. [2024-11-20 13:45:54,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52767 conditions, 15229 events. 4229/15229 cut-off events. For 49021/49911 co-relation queries the response was YES. Maximal size of possible extension queue 539. Compared 159022 event pairs, 427 based on Foata normal form. 127/15244 useless extension candidates. Maximal degree in co-relation 52444. Up to 2514 conditions per place. [2024-11-20 13:45:54,677 INFO L140 encePairwiseOnDemand]: 147/162 looper letters, 169 selfloop transitions, 45 changer transitions 0/525 dead transitions. [2024-11-20 13:45:54,678 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 525 transitions, 4789 flow [2024-11-20 13:45:54,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 13:45:54,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 13:45:54,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1288 transitions. [2024-11-20 13:45:54,680 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8834019204389575 [2024-11-20 13:45:54,680 INFO L175 Difference]: Start difference. First operand has 333 places, 443 transitions, 3486 flow. Second operand 9 states and 1288 transitions. [2024-11-20 13:45:54,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 525 transitions, 4789 flow [2024-11-20 13:45:54,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 525 transitions, 4685 flow, removed 52 selfloop flow, removed 0 redundant places. [2024-11-20 13:45:54,904 INFO L231 Difference]: Finished difference. Result has 348 places, 461 transitions, 3838 flow [2024-11-20 13:45:54,904 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=3382, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=443, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=403, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3838, PETRI_PLACES=348, PETRI_TRANSITIONS=461} [2024-11-20 13:45:54,904 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 189 predicate places. [2024-11-20 13:45:54,905 INFO L471 AbstractCegarLoop]: Abstraction has has 348 places, 461 transitions, 3838 flow [2024-11-20 13:45:54,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:54,905 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:54,905 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:54,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 13:45:54,906 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:45:54,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:54,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1733159267, now seen corresponding path program 9 times [2024-11-20 13:45:54,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:54,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587447528] [2024-11-20 13:45:54,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:54,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:54,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:55,341 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-20 13:45:55,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:55,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587447528] [2024-11-20 13:45:55,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587447528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:55,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:55,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 13:45:55,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730543699] [2024-11-20 13:45:55,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:55,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 13:45:55,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:55,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 13:45:55,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-20 13:45:55,715 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-20 13:45:55,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 461 transitions, 3838 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:55,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:55,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-20 13:45:55,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:58,958 INFO L124 PetriNetUnfolderBase]: 4818/17260 cut-off events. [2024-11-20 13:45:58,958 INFO L125 PetriNetUnfolderBase]: For 60755/61725 co-relation queries the response was YES. [2024-11-20 13:45:59,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61007 conditions, 17260 events. 4818/17260 cut-off events. For 60755/61725 co-relation queries the response was YES. Maximal size of possible extension queue 662. Compared 186285 event pairs, 476 based on Foata normal form. 140/17277 useless extension candidates. Maximal degree in co-relation 60676. Up to 2857 conditions per place. [2024-11-20 13:45:59,158 INFO L140 encePairwiseOnDemand]: 147/162 looper letters, 184 selfloop transitions, 46 changer transitions 0/541 dead transitions. [2024-11-20 13:45:59,158 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 541 transitions, 5096 flow [2024-11-20 13:45:59,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 13:45:59,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 13:45:59,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1288 transitions. [2024-11-20 13:45:59,160 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8834019204389575 [2024-11-20 13:45:59,160 INFO L175 Difference]: Start difference. First operand has 348 places, 461 transitions, 3838 flow. Second operand 9 states and 1288 transitions. [2024-11-20 13:45:59,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 541 transitions, 5096 flow [2024-11-20 13:45:59,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 541 transitions, 5010 flow, removed 43 selfloop flow, removed 0 redundant places. [2024-11-20 13:45:59,612 INFO L231 Difference]: Finished difference. Result has 362 places, 478 transitions, 4161 flow [2024-11-20 13:45:59,613 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=3752, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=461, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4161, PETRI_PLACES=362, PETRI_TRANSITIONS=478} [2024-11-20 13:45:59,613 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 203 predicate places. [2024-11-20 13:45:59,613 INFO L471 AbstractCegarLoop]: Abstraction has has 362 places, 478 transitions, 4161 flow [2024-11-20 13:45:59,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:59,614 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:59,614 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:59,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-20 13:45:59,614 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:45:59,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:59,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1581331279, now seen corresponding path program 10 times [2024-11-20 13:45:59,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:59,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042600441] [2024-11-20 13:45:59,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:59,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:59,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:59,861 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-20 13:45:59,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:59,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042600441] [2024-11-20 13:45:59,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042600441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:59,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:59,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 13:45:59,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534654658] [2024-11-20 13:45:59,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:59,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 13:45:59,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:59,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 13:45:59,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-20 13:46:00,494 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-20 13:46:00,495 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 478 transitions, 4161 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:46:00,495 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:46:00,495 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-20 13:46:00,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:46:04,141 INFO L124 PetriNetUnfolderBase]: 5106/18204 cut-off events. [2024-11-20 13:46:04,142 INFO L125 PetriNetUnfolderBase]: For 69118/70153 co-relation queries the response was YES. [2024-11-20 13:46:04,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65251 conditions, 18204 events. 5106/18204 cut-off events. For 69118/70153 co-relation queries the response was YES. Maximal size of possible extension queue 725. Compared 198930 event pairs, 505 based on Foata normal form. 161/18239 useless extension candidates. Maximal degree in co-relation 64913. Up to 3031 conditions per place. [2024-11-20 13:46:04,293 INFO L140 encePairwiseOnDemand]: 146/162 looper letters, 183 selfloop transitions, 53 changer transitions 0/547 dead transitions. [2024-11-20 13:46:04,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 547 transitions, 5463 flow [2024-11-20 13:46:04,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 13:46:04,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 13:46:04,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1290 transitions. [2024-11-20 13:46:04,294 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8847736625514403 [2024-11-20 13:46:04,294 INFO L175 Difference]: Start difference. First operand has 362 places, 478 transitions, 4161 flow. Second operand 9 states and 1290 transitions. [2024-11-20 13:46:04,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 547 transitions, 5463 flow [2024-11-20 13:46:04,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 547 transitions, 5310 flow, removed 57 selfloop flow, removed 2 redundant places. [2024-11-20 13:46:04,591 INFO L231 Difference]: Finished difference. Result has 372 places, 492 transitions, 4440 flow [2024-11-20 13:46:04,591 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=4064, PETRI_DIFFERENCE_MINUEND_PLACES=360, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=478, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4440, PETRI_PLACES=372, PETRI_TRANSITIONS=492} [2024-11-20 13:46:04,592 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 213 predicate places. [2024-11-20 13:46:04,592 INFO L471 AbstractCegarLoop]: Abstraction has has 372 places, 492 transitions, 4440 flow [2024-11-20 13:46:04,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:46:04,592 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:46:04,593 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:46:04,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-20 13:46:04,593 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:46:04,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:46:04,593 INFO L85 PathProgramCache]: Analyzing trace with hash -870785091, now seen corresponding path program 11 times [2024-11-20 13:46:04,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:46:04,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894916335] [2024-11-20 13:46:04,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:46:04,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:46:04,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:46:04,796 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-20 13:46:04,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:46:04,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894916335] [2024-11-20 13:46:04,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894916335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:46:04,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:46:04,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 13:46:04,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348395724] [2024-11-20 13:46:04,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:46:04,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 13:46:04,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:46:04,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 13:46:04,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-20 13:46:05,368 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-20 13:46:05,369 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 492 transitions, 4440 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:46:05,369 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:46:05,369 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-20 13:46:05,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:46:09,605 INFO L124 PetriNetUnfolderBase]: 5112/18202 cut-off events. [2024-11-20 13:46:09,606 INFO L125 PetriNetUnfolderBase]: For 74043/75069 co-relation queries the response was YES. [2024-11-20 13:46:09,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65959 conditions, 18202 events. 5112/18202 cut-off events. For 74043/75069 co-relation queries the response was YES. Maximal size of possible extension queue 725. Compared 198903 event pairs, 506 based on Foata normal form. 169/18240 useless extension candidates. Maximal degree in co-relation 65617. Up to 3039 conditions per place. [2024-11-20 13:46:09,756 INFO L140 encePairwiseOnDemand]: 147/162 looper letters, 186 selfloop transitions, 57 changer transitions 0/554 dead transitions. [2024-11-20 13:46:09,757 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 554 transitions, 5666 flow [2024-11-20 13:46:09,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 13:46:09,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 13:46:09,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1291 transitions. [2024-11-20 13:46:09,758 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8854595336076817 [2024-11-20 13:46:09,758 INFO L175 Difference]: Start difference. First operand has 372 places, 492 transitions, 4440 flow. Second operand 9 states and 1291 transitions. [2024-11-20 13:46:09,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 380 places, 554 transitions, 5666 flow [2024-11-20 13:46:10,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 554 transitions, 5506 flow, removed 39 selfloop flow, removed 4 redundant places. [2024-11-20 13:46:10,085 INFO L231 Difference]: Finished difference. Result has 381 places, 504 transitions, 4710 flow [2024-11-20 13:46:10,085 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=4304, PETRI_DIFFERENCE_MINUEND_PLACES=368, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=492, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=438, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4710, PETRI_PLACES=381, PETRI_TRANSITIONS=504} [2024-11-20 13:46:10,085 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 222 predicate places. [2024-11-20 13:46:10,086 INFO L471 AbstractCegarLoop]: Abstraction has has 381 places, 504 transitions, 4710 flow [2024-11-20 13:46:10,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:46:10,086 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:46:10,086 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:46:10,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-20 13:46:10,086 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-20 13:46:10,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:46:10,087 INFO L85 PathProgramCache]: Analyzing trace with hash -54689603, now seen corresponding path program 12 times [2024-11-20 13:46:10,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:46:10,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239656751] [2024-11-20 13:46:10,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:46:10,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:46:10,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:46:10,278 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-20 13:46:10,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:46:10,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239656751] [2024-11-20 13:46:10,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239656751] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:46:10,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:46:10,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 13:46:10,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231932982] [2024-11-20 13:46:10,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:46:10,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 13:46:10,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:46:10,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 13:46:10,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-20 13:46:10,774 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-20 13:46:10,775 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 504 transitions, 4710 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:46:10,775 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:46:10,775 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-20 13:46:10,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand