./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_70-funloop_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_70-funloop_racefree.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 2a10f98c1a89e2ac521234c9e4f0eca565cc5bc1484e9c7d67d861e216c6f9ba --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 05:54:21,491 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 05:54:21,550 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-19 05:54:21,554 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 05:54:21,554 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 05:54:21,579 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 05:54:21,579 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 05:54:21,580 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 05:54:21,580 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 05:54:21,581 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 05:54:21,582 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 05:54:21,582 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 05:54:21,582 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 05:54:21,582 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 05:54:21,584 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 05:54:21,584 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 05:54:21,584 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 05:54:21,585 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 05:54:21,585 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 05:54:21,585 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 05:54:21,585 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 05:54:21,586 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 05:54:21,589 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-19 05:54:21,589 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 05:54:21,590 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 05:54:21,590 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 05:54:21,590 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 05:54:21,590 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 05:54:21,590 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 05:54:21,590 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 05:54:21,591 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 05:54:21,591 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:54:21,591 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 05:54:21,591 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 05:54:21,591 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 05:54:21,591 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 05:54:21,592 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 05:54:21,592 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 05:54:21,592 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 05:54:21,592 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 05:54:21,592 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 05:54:21,593 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a10f98c1a89e2ac521234c9e4f0eca565cc5bc1484e9c7d67d861e216c6f9ba [2024-11-19 05:54:21,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 05:54:21,814 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 05:54:21,817 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 05:54:21,818 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 05:54:21,819 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 05:54:21,820 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_70-funloop_racefree.i [2024-11-19 05:54:23,098 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 05:54:23,301 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 05:54:23,302 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_70-funloop_racefree.i [2024-11-19 05:54:23,315 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55b7878ca/8dfa9bf323164f388330d979bf712079/FLAG37b2139ac [2024-11-19 05:54:23,329 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55b7878ca/8dfa9bf323164f388330d979bf712079 [2024-11-19 05:54:23,332 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 05:54:23,333 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 05:54:23,334 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 05:54:23,335 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 05:54:23,339 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 05:54:23,339 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:54:23" (1/1) ... [2024-11-19 05:54:23,342 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41235eed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:23, skipping insertion in model container [2024-11-19 05:54:23,342 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:54:23" (1/1) ... [2024-11-19 05:54:23,399 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 05:54:23,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:54:23,836 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 05:54:23,886 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:54:23,939 INFO L204 MainTranslator]: Completed translation [2024-11-19 05:54:23,939 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:23 WrapperNode [2024-11-19 05:54:23,939 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 05:54:23,941 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 05:54:23,941 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 05:54:23,941 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 05:54:23,947 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:23" (1/1) ... [2024-11-19 05:54:23,970 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:23" (1/1) ... [2024-11-19 05:54:24,008 INFO L138 Inliner]: procedures = 272, calls = 96, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 350 [2024-11-19 05:54:24,009 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 05:54:24,009 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 05:54:24,009 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 05:54:24,009 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 05:54:24,019 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:23" (1/1) ... [2024-11-19 05:54:24,019 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:23" (1/1) ... [2024-11-19 05:54:24,028 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:23" (1/1) ... [2024-11-19 05:54:24,028 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:23" (1/1) ... [2024-11-19 05:54:24,044 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:23" (1/1) ... [2024-11-19 05:54:24,052 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:23" (1/1) ... [2024-11-19 05:54:24,054 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:23" (1/1) ... [2024-11-19 05:54:24,055 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:23" (1/1) ... [2024-11-19 05:54:24,061 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 05:54:24,061 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 05:54:24,062 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 05:54:24,062 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 05:54:24,062 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:23" (1/1) ... [2024-11-19 05:54:24,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:54:24,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:54:24,090 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) [2024-11-19 05:54:24,092 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 [2024-11-19 05:54:24,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 05:54:24,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 05:54:24,126 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-19 05:54:24,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-19 05:54:24,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-19 05:54:24,126 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-19 05:54:24,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 05:54:24,127 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-19 05:54:24,127 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-19 05:54:24,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-19 05:54:24,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 05:54:24,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 05:54:24,128 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 05:54:24,274 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 05:54:24,278 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 05:54:24,668 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 05:54:24,669 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 05:54:24,715 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 05:54:24,715 INFO L316 CfgBuilder]: Removed 25 assume(true) statements. [2024-11-19 05:54:24,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:54:24 BoogieIcfgContainer [2024-11-19 05:54:24,715 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 05:54:24,717 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 05:54:24,717 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 05:54:24,720 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 05:54:24,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:54:23" (1/3) ... [2024-11-19 05:54:24,721 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12fc0c8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:54:24, skipping insertion in model container [2024-11-19 05:54:24,721 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:23" (2/3) ... [2024-11-19 05:54:24,722 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12fc0c8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:54:24, skipping insertion in model container [2024-11-19 05:54:24,722 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:54:24" (3/3) ... [2024-11-19 05:54:24,723 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_70-funloop_racefree.i [2024-11-19 05:54:24,736 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 05:54:24,736 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-19 05:54:24,736 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 05:54:24,814 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-19 05:54:24,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 320 places, 352 transitions, 711 flow [2024-11-19 05:54:24,970 INFO L124 PetriNetUnfolderBase]: 52/493 cut-off events. [2024-11-19 05:54:24,970 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 05:54:24,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 498 conditions, 493 events. 52/493 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1869 event pairs, 0 based on Foata normal form. 0/419 useless extension candidates. Maximal degree in co-relation 257. Up to 8 conditions per place. [2024-11-19 05:54:24,980 INFO L82 GeneralOperation]: Start removeDead. Operand has 320 places, 352 transitions, 711 flow [2024-11-19 05:54:24,987 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 320 places, 352 transitions, 711 flow [2024-11-19 05:54:24,996 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:54:25,002 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;@57ba84b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:54:25,002 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-19 05:54:25,018 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:54:25,019 INFO L124 PetriNetUnfolderBase]: 5/120 cut-off events. [2024-11-19 05:54:25,019 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:54:25,019 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:25,020 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:25,020 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-19 05:54:25,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:25,024 INFO L85 PathProgramCache]: Analyzing trace with hash 80814904, now seen corresponding path program 1 times [2024-11-19 05:54:25,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:25,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811011401] [2024-11-19 05:54:25,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:25,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:25,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:25,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:25,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:25,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811011401] [2024-11-19 05:54:25,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811011401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:25,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:25,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 05:54:25,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248100583] [2024-11-19 05:54:25,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:25,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:54:25,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:25,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:54:25,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:54:25,494 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 352 [2024-11-19 05:54:25,500 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 352 transitions, 711 flow. Second operand has 3 states, 3 states have (on average 298.3333333333333) internal successors, (895), 3 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:25,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:25,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 352 [2024-11-19 05:54:25,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:25,717 INFO L124 PetriNetUnfolderBase]: 98/1383 cut-off events. [2024-11-19 05:54:25,717 INFO L125 PetriNetUnfolderBase]: For 6/8 co-relation queries the response was YES. [2024-11-19 05:54:25,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1576 conditions, 1383 events. 98/1383 cut-off events. For 6/8 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 9002 event pairs, 72 based on Foata normal form. 228/1497 useless extension candidates. Maximal degree in co-relation 1331. Up to 187 conditions per place. [2024-11-19 05:54:25,731 INFO L140 encePairwiseOnDemand]: 320/352 looper letters, 23 selfloop transitions, 2 changer transitions 0/320 dead transitions. [2024-11-19 05:54:25,731 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 320 transitions, 697 flow [2024-11-19 05:54:25,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:54:25,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:54:25,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 947 transitions. [2024-11-19 05:54:25,747 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.896780303030303 [2024-11-19 05:54:25,750 INFO L175 Difference]: Start difference. First operand has 320 places, 352 transitions, 711 flow. Second operand 3 states and 947 transitions. [2024-11-19 05:54:25,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 320 transitions, 697 flow [2024-11-19 05:54:25,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 320 transitions, 697 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:54:25,761 INFO L231 Difference]: Finished difference. Result has 319 places, 320 transitions, 657 flow [2024-11-19 05:54:25,763 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=352, PETRI_DIFFERENCE_MINUEND_FLOW=645, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=657, PETRI_PLACES=319, PETRI_TRANSITIONS=320} [2024-11-19 05:54:25,767 INFO L277 CegarLoopForPetriNet]: 320 programPoint places, -1 predicate places. [2024-11-19 05:54:25,767 INFO L471 AbstractCegarLoop]: Abstraction has has 319 places, 320 transitions, 657 flow [2024-11-19 05:54:25,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 298.3333333333333) internal successors, (895), 3 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:25,768 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:25,769 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:25,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 05:54:25,769 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-19 05:54:25,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:25,770 INFO L85 PathProgramCache]: Analyzing trace with hash 424190574, now seen corresponding path program 1 times [2024-11-19 05:54:25,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:25,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803807678] [2024-11-19 05:54:25,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:25,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:25,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:25,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:25,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:25,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803807678] [2024-11-19 05:54:25,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803807678] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:54:25,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588427868] [2024-11-19 05:54:25,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:25,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:54:25,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:54:25,983 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) [2024-11-19 05:54:25,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 05:54:26,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:26,075 INFO L255 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 05:54:26,081 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:54:26,140 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:26,140 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 05:54:26,188 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:26,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1588427868] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 05:54:26,190 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 05:54:26,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-19 05:54:26,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685894896] [2024-11-19 05:54:26,191 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 05:54:26,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 05:54:26,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:26,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 05:54:26,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 05:54:26,218 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 352 [2024-11-19 05:54:26,220 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 320 transitions, 657 flow. Second operand has 10 states, 10 states have (on average 295.8) internal successors, (2958), 10 states have internal predecessors, (2958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:26,220 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:26,220 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 352 [2024-11-19 05:54:26,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:26,430 INFO L124 PetriNetUnfolderBase]: 98/1390 cut-off events. [2024-11-19 05:54:26,431 INFO L125 PetriNetUnfolderBase]: For 7/9 co-relation queries the response was YES. [2024-11-19 05:54:26,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1602 conditions, 1390 events. 98/1390 cut-off events. For 7/9 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 8954 event pairs, 72 based on Foata normal form. 2/1278 useless extension candidates. Maximal degree in co-relation 1507. Up to 187 conditions per place. [2024-11-19 05:54:26,439 INFO L140 encePairwiseOnDemand]: 346/352 looper letters, 27 selfloop transitions, 9 changer transitions 0/328 dead transitions. [2024-11-19 05:54:26,439 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 328 transitions, 747 flow [2024-11-19 05:54:26,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:54:26,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 05:54:26,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2684 transitions. [2024-11-19 05:54:26,443 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8472222222222222 [2024-11-19 05:54:26,443 INFO L175 Difference]: Start difference. First operand has 319 places, 320 transitions, 657 flow. Second operand 9 states and 2684 transitions. [2024-11-19 05:54:26,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 328 transitions, 747 flow [2024-11-19 05:54:26,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 328 transitions, 745 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 05:54:26,452 INFO L231 Difference]: Finished difference. Result has 329 places, 326 transitions, 705 flow [2024-11-19 05:54:26,452 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=352, PETRI_DIFFERENCE_MINUEND_FLOW=655, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=705, PETRI_PLACES=329, PETRI_TRANSITIONS=326} [2024-11-19 05:54:26,453 INFO L277 CegarLoopForPetriNet]: 320 programPoint places, 9 predicate places. [2024-11-19 05:54:26,453 INFO L471 AbstractCegarLoop]: Abstraction has has 329 places, 326 transitions, 705 flow [2024-11-19 05:54:26,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 295.8) internal successors, (2958), 10 states have internal predecessors, (2958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:26,456 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:26,456 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, 1, 1, 1] [2024-11-19 05:54:26,470 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 05:54:26,657 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 [2024-11-19 05:54:26,657 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-19 05:54:26,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:26,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1399892142, now seen corresponding path program 2 times [2024-11-19 05:54:26,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:26,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083538852] [2024-11-19 05:54:26,658 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 05:54:26,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:26,694 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 05:54:26,694 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:54:27,129 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 05:54:27,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:27,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083538852] [2024-11-19 05:54:27,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083538852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:27,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:27,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:54:27,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301041356] [2024-11-19 05:54:27,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:27,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:54:27,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:27,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:54:27,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:54:27,393 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 352 [2024-11-19 05:54:27,395 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 326 transitions, 705 flow. Second operand has 6 states, 6 states have (on average 246.5) internal successors, (1479), 6 states have internal predecessors, (1479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:27,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:27,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 352 [2024-11-19 05:54:27,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:28,210 INFO L124 PetriNetUnfolderBase]: 1445/5796 cut-off events. [2024-11-19 05:54:28,210 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-19 05:54:28,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8693 conditions, 5796 events. 1445/5796 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 52750 event pairs, 932 based on Foata normal form. 0/5310 useless extension candidates. Maximal degree in co-relation 8569. Up to 2635 conditions per place. [2024-11-19 05:54:28,236 INFO L140 encePairwiseOnDemand]: 325/352 looper letters, 107 selfloop transitions, 86 changer transitions 0/443 dead transitions. [2024-11-19 05:54:28,236 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 443 transitions, 1325 flow [2024-11-19 05:54:28,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:54:28,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:54:28,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1664 transitions. [2024-11-19 05:54:28,240 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7878787878787878 [2024-11-19 05:54:28,240 INFO L175 Difference]: Start difference. First operand has 329 places, 326 transitions, 705 flow. Second operand 6 states and 1664 transitions. [2024-11-19 05:54:28,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 443 transitions, 1325 flow [2024-11-19 05:54:28,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 443 transitions, 1319 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-19 05:54:28,249 INFO L231 Difference]: Finished difference. Result has 338 places, 411 transitions, 1265 flow [2024-11-19 05:54:28,250 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=352, PETRI_DIFFERENCE_MINUEND_FLOW=699, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1265, PETRI_PLACES=338, PETRI_TRANSITIONS=411} [2024-11-19 05:54:28,251 INFO L277 CegarLoopForPetriNet]: 320 programPoint places, 18 predicate places. [2024-11-19 05:54:28,251 INFO L471 AbstractCegarLoop]: Abstraction has has 338 places, 411 transitions, 1265 flow [2024-11-19 05:54:28,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 246.5) internal successors, (1479), 6 states have internal predecessors, (1479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:28,252 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:28,252 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, 1, 1, 1, 1, 1] [2024-11-19 05:54:28,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 05:54:28,253 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-19 05:54:28,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:28,254 INFO L85 PathProgramCache]: Analyzing trace with hash -352664929, now seen corresponding path program 1 times [2024-11-19 05:54:28,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:28,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91327293] [2024-11-19 05:54:28,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:28,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:28,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:28,337 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 05:54:28,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:28,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91327293] [2024-11-19 05:54:28,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91327293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:28,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:28,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 05:54:28,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936451975] [2024-11-19 05:54:28,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:28,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:54:28,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:28,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:54:28,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:54:28,359 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 352 [2024-11-19 05:54:28,360 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 411 transitions, 1265 flow. Second operand has 3 states, 3 states have (on average 298.3333333333333) internal successors, (895), 3 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:28,360 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:28,360 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 352 [2024-11-19 05:54:28,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:28,623 INFO L124 PetriNetUnfolderBase]: 284/2231 cut-off events. [2024-11-19 05:54:28,624 INFO L125 PetriNetUnfolderBase]: For 158/180 co-relation queries the response was YES. [2024-11-19 05:54:28,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3171 conditions, 2231 events. 284/2231 cut-off events. For 158/180 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 17677 event pairs, 88 based on Foata normal form. 1/2052 useless extension candidates. Maximal degree in co-relation 3045. Up to 266 conditions per place. [2024-11-19 05:54:28,636 INFO L140 encePairwiseOnDemand]: 349/352 looper letters, 30 selfloop transitions, 3 changer transitions 0/419 dead transitions. [2024-11-19 05:54:28,636 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 419 transitions, 1347 flow [2024-11-19 05:54:28,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:54:28,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:54:28,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 924 transitions. [2024-11-19 05:54:28,639 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.875 [2024-11-19 05:54:28,639 INFO L175 Difference]: Start difference. First operand has 338 places, 411 transitions, 1265 flow. Second operand 3 states and 924 transitions. [2024-11-19 05:54:28,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 419 transitions, 1347 flow [2024-11-19 05:54:28,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 419 transitions, 1347 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:54:28,649 INFO L231 Difference]: Finished difference. Result has 341 places, 411 transitions, 1276 flow [2024-11-19 05:54:28,649 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=352, PETRI_DIFFERENCE_MINUEND_FLOW=1265, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1276, PETRI_PLACES=341, PETRI_TRANSITIONS=411} [2024-11-19 05:54:28,651 INFO L277 CegarLoopForPetriNet]: 320 programPoint places, 21 predicate places. [2024-11-19 05:54:28,651 INFO L471 AbstractCegarLoop]: Abstraction has has 341 places, 411 transitions, 1276 flow [2024-11-19 05:54:28,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 298.3333333333333) internal successors, (895), 3 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:28,652 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:28,652 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:28,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 05:54:28,652 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-19 05:54:28,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:28,653 INFO L85 PathProgramCache]: Analyzing trace with hash 732943347, now seen corresponding path program 1 times [2024-11-19 05:54:28,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:28,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052637994] [2024-11-19 05:54:28,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:28,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:28,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:28,861 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-19 05:54:28,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:28,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052637994] [2024-11-19 05:54:28,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052637994] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:54:28,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660153609] [2024-11-19 05:54:28,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:28,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:54:28,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:54:28,864 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) [2024-11-19 05:54:28,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 05:54:28,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:28,954 INFO L255 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 05:54:28,958 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:54:29,002 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-19 05:54:29,003 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 05:54:29,090 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-19 05:54:29,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1660153609] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 05:54:29,090 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 05:54:29,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-19 05:54:29,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596212598] [2024-11-19 05:54:29,091 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 05:54:29,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-19 05:54:29,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:29,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-19 05:54:29,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-19 05:54:29,122 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 352 [2024-11-19 05:54:29,127 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 411 transitions, 1276 flow. Second operand has 18 states, 18 states have (on average 295.94444444444446) internal successors, (5327), 18 states have internal predecessors, (5327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:29,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:29,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 352 [2024-11-19 05:54:29,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:29,542 INFO L124 PetriNetUnfolderBase]: 267/2192 cut-off events. [2024-11-19 05:54:29,543 INFO L125 PetriNetUnfolderBase]: For 174/217 co-relation queries the response was YES. [2024-11-19 05:54:29,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3342 conditions, 2192 events. 267/2192 cut-off events. For 174/217 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 17136 event pairs, 72 based on Foata normal form. 4/2037 useless extension candidates. Maximal degree in co-relation 3140. Up to 436 conditions per place. [2024-11-19 05:54:29,554 INFO L140 encePairwiseOnDemand]: 346/352 looper letters, 31 selfloop transitions, 21 changer transitions 0/429 dead transitions. [2024-11-19 05:54:29,554 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 429 transitions, 1468 flow [2024-11-19 05:54:29,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-19 05:54:29,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-19 05:54:29,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6230 transitions. [2024-11-19 05:54:29,563 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8428030303030303 [2024-11-19 05:54:29,563 INFO L175 Difference]: Start difference. First operand has 341 places, 411 transitions, 1276 flow. Second operand 21 states and 6230 transitions. [2024-11-19 05:54:29,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 429 transitions, 1468 flow [2024-11-19 05:54:29,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 429 transitions, 1462 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:54:29,570 INFO L231 Difference]: Finished difference. Result has 364 places, 424 transitions, 1400 flow [2024-11-19 05:54:29,571 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=352, PETRI_DIFFERENCE_MINUEND_FLOW=1270, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1400, PETRI_PLACES=364, PETRI_TRANSITIONS=424} [2024-11-19 05:54:29,571 INFO L277 CegarLoopForPetriNet]: 320 programPoint places, 44 predicate places. [2024-11-19 05:54:29,571 INFO L471 AbstractCegarLoop]: Abstraction has has 364 places, 424 transitions, 1400 flow [2024-11-19 05:54:29,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 295.94444444444446) internal successors, (5327), 18 states have internal predecessors, (5327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:29,578 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:29,578 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:29,591 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 05:54:29,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:54:29,779 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-19 05:54:29,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:29,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1664637069, now seen corresponding path program 2 times [2024-11-19 05:54:29,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:29,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156637451] [2024-11-19 05:54:29,779 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 05:54:29,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:29,804 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 05:54:29,805 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:54:30,048 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-19 05:54:30,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:30,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156637451] [2024-11-19 05:54:30,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156637451] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:54:30,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [931144927] [2024-11-19 05:54:30,049 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 05:54:30,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:54:30,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:54:30,050 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) [2024-11-19 05:54:30,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 05:54:30,142 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 05:54:30,142 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:54:30,145 INFO L255 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 05:54:30,148 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:54:30,214 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-19 05:54:30,214 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 05:54:30,390 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-19 05:54:30,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [931144927] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 05:54:30,391 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 05:54:30,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-19 05:54:30,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354802116] [2024-11-19 05:54:30,392 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 05:54:30,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-19 05:54:30,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:30,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-19 05:54:30,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-19 05:54:30,425 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 352 [2024-11-19 05:54:30,431 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 424 transitions, 1400 flow. Second operand has 23 states, 23 states have (on average 296.04347826086956) internal successors, (6809), 23 states have internal predecessors, (6809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:30,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:30,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 352 [2024-11-19 05:54:30,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:30,917 INFO L124 PetriNetUnfolderBase]: 267/2207 cut-off events. [2024-11-19 05:54:30,917 INFO L125 PetriNetUnfolderBase]: For 275/318 co-relation queries the response was YES. [2024-11-19 05:54:30,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3442 conditions, 2207 events. 267/2207 cut-off events. For 275/318 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 17169 event pairs, 72 based on Foata normal form. 3/2051 useless extension candidates. Maximal degree in co-relation 3140. Up to 436 conditions per place. [2024-11-19 05:54:30,931 INFO L140 encePairwiseOnDemand]: 346/352 looper letters, 34 selfloop transitions, 30 changer transitions 0/441 dead transitions. [2024-11-19 05:54:30,931 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 441 transitions, 1656 flow [2024-11-19 05:54:30,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-19 05:54:30,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-19 05:54:30,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 8887 transitions. [2024-11-19 05:54:30,942 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8415719696969697 [2024-11-19 05:54:30,943 INFO L175 Difference]: Start difference. First operand has 364 places, 424 transitions, 1400 flow. Second operand 30 states and 8887 transitions. [2024-11-19 05:54:30,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 441 transitions, 1656 flow [2024-11-19 05:54:30,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 441 transitions, 1626 flow, removed 9 selfloop flow, removed 6 redundant places. [2024-11-19 05:54:30,951 INFO L231 Difference]: Finished difference. Result has 391 places, 434 transitions, 1528 flow [2024-11-19 05:54:30,951 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=352, PETRI_DIFFERENCE_MINUEND_FLOW=1376, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1528, PETRI_PLACES=391, PETRI_TRANSITIONS=434} [2024-11-19 05:54:30,952 INFO L277 CegarLoopForPetriNet]: 320 programPoint places, 71 predicate places. [2024-11-19 05:54:30,952 INFO L471 AbstractCegarLoop]: Abstraction has has 391 places, 434 transitions, 1528 flow [2024-11-19 05:54:30,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 296.04347826086956) internal successors, (6809), 23 states have internal predecessors, (6809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:30,955 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:30,955 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:30,969 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 05:54:31,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:54:31,156 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-19 05:54:31,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:31,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1312531305, now seen corresponding path program 3 times [2024-11-19 05:54:31,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:31,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162081922] [2024-11-19 05:54:31,157 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 05:54:31,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:31,215 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-19 05:54:31,215 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 05:54:31,215 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 05:54:31,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:54:31,261 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 05:54:31,262 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 05:54:31,263 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-11-19 05:54:31,264 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-11-19 05:54:31,265 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-11-19 05:54:31,265 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-11-19 05:54:31,265 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-11-19 05:54:31,265 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-11-19 05:54:31,265 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2024-11-19 05:54:31,265 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-11-19 05:54:31,265 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-11-19 05:54:31,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-11-19 05:54:31,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-11-19 05:54:31,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-11-19 05:54:31,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-11-19 05:54:31,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-11-19 05:54:31,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-11-19 05:54:31,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-11-19 05:54:31,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-11-19 05:54:31,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-11-19 05:54:31,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 05:54:31,267 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1] [2024-11-19 05:54:31,269 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 05:54:31,269 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-19 05:54:31,307 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-19 05:54:31,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 421 places, 467 transitions, 950 flow [2024-11-19 05:54:31,404 INFO L124 PetriNetUnfolderBase]: 87/777 cut-off events. [2024-11-19 05:54:31,404 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-19 05:54:31,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 789 conditions, 777 events. 87/777 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3731 event pairs, 0 based on Foata normal form. 0/654 useless extension candidates. Maximal degree in co-relation 495. Up to 12 conditions per place. [2024-11-19 05:54:31,415 INFO L82 GeneralOperation]: Start removeDead. Operand has 421 places, 467 transitions, 950 flow [2024-11-19 05:54:31,424 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 421 places, 467 transitions, 950 flow [2024-11-19 05:54:31,425 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:54:31,427 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;@57ba84b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:54:31,428 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-19 05:54:31,433 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:54:31,434 INFO L124 PetriNetUnfolderBase]: 5/120 cut-off events. [2024-11-19 05:54:31,434 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:54:31,434 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:31,434 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:31,434 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-19 05:54:31,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:31,435 INFO L85 PathProgramCache]: Analyzing trace with hash 507860939, now seen corresponding path program 1 times [2024-11-19 05:54:31,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:31,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213269087] [2024-11-19 05:54:31,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:31,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:31,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:31,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:31,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:31,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213269087] [2024-11-19 05:54:31,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213269087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:31,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:31,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 05:54:31,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358832653] [2024-11-19 05:54:31,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:31,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:54:31,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:31,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:54:31,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:54:31,496 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 467 [2024-11-19 05:54:31,497 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 467 transitions, 950 flow. Second operand has 3 states, 3 states have (on average 389.3333333333333) internal successors, (1168), 3 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:31,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:31,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 467 [2024-11-19 05:54:31,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:32,992 INFO L124 PetriNetUnfolderBase]: 1782/12900 cut-off events. [2024-11-19 05:54:32,992 INFO L125 PetriNetUnfolderBase]: For 122/129 co-relation queries the response was YES. [2024-11-19 05:54:33,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15564 conditions, 12900 events. 1782/12900 cut-off events. For 122/129 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 156769 event pairs, 1464 based on Foata normal form. 3189/15021 useless extension candidates. Maximal degree in co-relation 13811. Up to 2601 conditions per place. [2024-11-19 05:54:33,069 INFO L140 encePairwiseOnDemand]: 422/467 looper letters, 33 selfloop transitions, 2 changer transitions 0/420 dead transitions. [2024-11-19 05:54:33,069 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 420 transitions, 926 flow [2024-11-19 05:54:33,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:54:33,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:54:33,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1243 transitions. [2024-11-19 05:54:33,072 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8872234118486795 [2024-11-19 05:54:33,072 INFO L175 Difference]: Start difference. First operand has 421 places, 467 transitions, 950 flow. Second operand 3 states and 1243 transitions. [2024-11-19 05:54:33,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 420 transitions, 926 flow [2024-11-19 05:54:33,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 420 transitions, 926 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:54:33,077 INFO L231 Difference]: Finished difference. Result has 418 places, 420 transitions, 866 flow [2024-11-19 05:54:33,078 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=854, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=866, PETRI_PLACES=418, PETRI_TRANSITIONS=420} [2024-11-19 05:54:33,078 INFO L277 CegarLoopForPetriNet]: 421 programPoint places, -3 predicate places. [2024-11-19 05:54:33,078 INFO L471 AbstractCegarLoop]: Abstraction has has 418 places, 420 transitions, 866 flow [2024-11-19 05:54:33,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 389.3333333333333) internal successors, (1168), 3 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:33,079 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:33,079 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:33,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 05:54:33,079 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-19 05:54:33,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:33,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1715630386, now seen corresponding path program 1 times [2024-11-19 05:54:33,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:33,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132653558] [2024-11-19 05:54:33,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:33,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:33,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:33,135 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:33,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:33,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132653558] [2024-11-19 05:54:33,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132653558] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:54:33,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482690060] [2024-11-19 05:54:33,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:33,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:54:33,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:54:33,141 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) [2024-11-19 05:54:33,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 05:54:33,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:33,220 INFO L255 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 05:54:33,222 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:54:33,244 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:33,245 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 05:54:33,269 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:33,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482690060] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 05:54:33,270 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 05:54:33,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-19 05:54:33,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545525617] [2024-11-19 05:54:33,271 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 05:54:33,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 05:54:33,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:33,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 05:54:33,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 05:54:33,293 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 385 out of 467 [2024-11-19 05:54:33,296 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 420 transitions, 866 flow. Second operand has 10 states, 10 states have (on average 386.8) internal successors, (3868), 10 states have internal predecessors, (3868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:33,296 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:33,296 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 385 of 467 [2024-11-19 05:54:33,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:34,980 INFO L124 PetriNetUnfolderBase]: 1782/12907 cut-off events. [2024-11-19 05:54:34,981 INFO L125 PetriNetUnfolderBase]: For 127/134 co-relation queries the response was YES. [2024-11-19 05:54:35,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15590 conditions, 12907 events. 1782/12907 cut-off events. For 127/134 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 157053 event pairs, 1464 based on Foata normal form. 2/11841 useless extension candidates. Maximal degree in co-relation 15494. Up to 2601 conditions per place. [2024-11-19 05:54:35,063 INFO L140 encePairwiseOnDemand]: 461/467 looper letters, 37 selfloop transitions, 9 changer transitions 0/428 dead transitions. [2024-11-19 05:54:35,063 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 428 transitions, 976 flow [2024-11-19 05:54:35,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:54:35,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 05:54:35,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3513 transitions. [2024-11-19 05:54:35,069 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8358315488936474 [2024-11-19 05:54:35,069 INFO L175 Difference]: Start difference. First operand has 418 places, 420 transitions, 866 flow. Second operand 9 states and 3513 transitions. [2024-11-19 05:54:35,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 428 transitions, 976 flow [2024-11-19 05:54:35,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 428 transitions, 974 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 05:54:35,074 INFO L231 Difference]: Finished difference. Result has 428 places, 426 transitions, 914 flow [2024-11-19 05:54:35,075 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=864, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=914, PETRI_PLACES=428, PETRI_TRANSITIONS=426} [2024-11-19 05:54:35,075 INFO L277 CegarLoopForPetriNet]: 421 programPoint places, 7 predicate places. [2024-11-19 05:54:35,075 INFO L471 AbstractCegarLoop]: Abstraction has has 428 places, 426 transitions, 914 flow [2024-11-19 05:54:35,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 386.8) internal successors, (3868), 10 states have internal predecessors, (3868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:35,076 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:35,077 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, 1, 1, 1] [2024-11-19 05:54:35,089 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 05:54:35,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:54:35,281 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-19 05:54:35,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:35,281 INFO L85 PathProgramCache]: Analyzing trace with hash -813969170, now seen corresponding path program 2 times [2024-11-19 05:54:35,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:35,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083383587] [2024-11-19 05:54:35,281 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 05:54:35,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:35,381 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 05:54:35,381 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:54:35,663 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 05:54:35,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:35,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083383587] [2024-11-19 05:54:35,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083383587] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:35,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:35,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:54:35,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72865639] [2024-11-19 05:54:35,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:35,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:54:35,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:35,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:54:35,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:54:35,891 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 316 out of 467 [2024-11-19 05:54:35,893 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 426 transitions, 914 flow. Second operand has 6 states, 6 states have (on average 317.5) internal successors, (1905), 6 states have internal predecessors, (1905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:35,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:35,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 316 of 467 [2024-11-19 05:54:35,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:55:02,583 INFO L124 PetriNetUnfolderBase]: 86469/215299 cut-off events. [2024-11-19 05:55:02,583 INFO L125 PetriNetUnfolderBase]: For 1237/1237 co-relation queries the response was YES. [2024-11-19 05:55:03,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 343976 conditions, 215299 events. 86469/215299 cut-off events. For 1237/1237 co-relation queries the response was YES. Maximal size of possible extension queue 4058. Compared 2947029 event pairs, 64133 based on Foata normal form. 0/198863 useless extension candidates. Maximal degree in co-relation 343851. Up to 120138 conditions per place. [2024-11-19 05:55:04,310 INFO L140 encePairwiseOnDemand]: 420/467 looper letters, 170 selfloop transitions, 166 changer transitions 0/656 dead transitions. [2024-11-19 05:55:04,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 656 transitions, 2051 flow [2024-11-19 05:55:04,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:55:04,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:55:04,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2233 transitions. [2024-11-19 05:55:04,317 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7969307637401856 [2024-11-19 05:55:04,317 INFO L175 Difference]: Start difference. First operand has 428 places, 426 transitions, 914 flow. Second operand 6 states and 2233 transitions. [2024-11-19 05:55:04,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 433 places, 656 transitions, 2051 flow [2024-11-19 05:55:04,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 656 transitions, 2045 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-19 05:55:04,336 INFO L231 Difference]: Finished difference. Result has 437 places, 591 transitions, 1994 flow [2024-11-19 05:55:04,337 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=908, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=426, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=380, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1994, PETRI_PLACES=437, PETRI_TRANSITIONS=591} [2024-11-19 05:55:04,338 INFO L277 CegarLoopForPetriNet]: 421 programPoint places, 16 predicate places. [2024-11-19 05:55:04,339 INFO L471 AbstractCegarLoop]: Abstraction has has 437 places, 591 transitions, 1994 flow [2024-11-19 05:55:04,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 317.5) internal successors, (1905), 6 states have internal predecessors, (1905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:55:04,340 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:55:04,341 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, 1, 1, 1, 1, 1] [2024-11-19 05:55:04,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 05:55:04,341 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-19 05:55:04,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:55:04,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1864559297, now seen corresponding path program 1 times [2024-11-19 05:55:04,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:55:04,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185500823] [2024-11-19 05:55:04,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:55:04,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:55:04,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:55:04,391 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 05:55:04,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:55:04,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185500823] [2024-11-19 05:55:04,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185500823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:55:04,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:55:04,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 05:55:04,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861221696] [2024-11-19 05:55:04,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:55:04,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:55:04,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:55:04,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:55:04,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:55:04,411 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 467 [2024-11-19 05:55:04,412 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 591 transitions, 1994 flow. Second operand has 3 states, 3 states have (on average 389.3333333333333) internal successors, (1168), 3 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:55:04,412 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:55:04,412 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 467 [2024-11-19 05:55:04,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand