./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_03-funloop_simple.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/06-symbeq_03-funloop_simple.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 8259c4061eb15e4ed63bc06f98acbb6dc3f9862bbe262b5cabdd3ad4658d3239 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 06:51:28,734 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:51:28,815 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-09 06:51:28,821 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:51:28,823 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:51:28,896 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:51:28,899 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:51:28,899 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:51:28,900 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:51:28,900 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:51:28,901 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 06:51:28,901 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 06:51:28,901 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 06:51:28,902 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:51:28,904 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:51:28,904 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:51:28,905 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:51:28,905 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:51:28,905 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:51:28,908 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:51:28,909 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:51:28,909 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:51:28,909 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-09 06:51:28,909 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:51:28,910 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:51:28,910 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:51:28,910 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:51:28,910 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:51:28,911 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:51:28,911 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:51:28,911 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:51:28,912 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:51:28,912 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:51:28,914 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:51:28,915 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:51:28,917 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 06:51:28,917 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:51:28,918 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:51:28,918 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 06:51:28,918 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 06:51:28,918 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:51:28,919 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8259c4061eb15e4ed63bc06f98acbb6dc3f9862bbe262b5cabdd3ad4658d3239 [2024-11-09 06:51:29,158 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:51:29,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:51:29,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:51:29,190 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:51:29,191 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:51:29,191 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_03-funloop_simple.i [2024-11-09 06:51:30,801 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:51:31,096 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:51:31,098 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_03-funloop_simple.i [2024-11-09 06:51:31,116 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90e05cb55/c7205195c2ab4272bdae7be5257ee709/FLAG5ef7e457d [2024-11-09 06:51:31,127 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90e05cb55/c7205195c2ab4272bdae7be5257ee709 [2024-11-09 06:51:31,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:51:31,131 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:51:31,132 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:51:31,132 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:51:31,136 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:51:31,137 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:51:31" (1/1) ... [2024-11-09 06:51:31,138 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4af21c29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:31, skipping insertion in model container [2024-11-09 06:51:31,138 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:51:31" (1/1) ... [2024-11-09 06:51:31,197 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:51:31,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:51:31,547 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:51:31,591 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:51:31,669 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:51:31,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:31 WrapperNode [2024-11-09 06:51:31,670 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:51:31,671 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:51:31,671 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:51:31,671 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:51:31,678 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:31" (1/1) ... [2024-11-09 06:51:31,702 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:31" (1/1) ... [2024-11-09 06:51:31,736 INFO L138 Inliner]: procedures = 263, calls = 72, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 173 [2024-11-09 06:51:31,736 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:51:31,737 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:51:31,737 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:51:31,737 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:51:31,747 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:31" (1/1) ... [2024-11-09 06:51:31,748 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:31" (1/1) ... [2024-11-09 06:51:31,751 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:31" (1/1) ... [2024-11-09 06:51:31,752 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:31" (1/1) ... [2024-11-09 06:51:31,766 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:31" (1/1) ... [2024-11-09 06:51:31,769 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:31" (1/1) ... [2024-11-09 06:51:31,771 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:31" (1/1) ... [2024-11-09 06:51:31,772 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:31" (1/1) ... [2024-11-09 06:51:31,774 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:51:31,775 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:51:31,775 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:51:31,775 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:51:31,776 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:31" (1/1) ... [2024-11-09 06:51:31,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:51:31,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:51:31,812 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 06:51:31,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 06:51:31,857 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 06:51:31,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 06:51:31,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 06:51:31,857 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 06:51:31,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:51:31,858 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-09 06:51:31,858 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-09 06:51:31,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:51:31,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:51:31,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:51:31,860 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 06:51:32,110 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:51:32,113 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:51:32,816 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 06:51:32,817 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:51:32,876 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:51:32,879 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-09 06:51:32,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:51:32 BoogieIcfgContainer [2024-11-09 06:51:32,880 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:51:32,882 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:51:32,882 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:51:32,895 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:51:32,896 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:51:31" (1/3) ... [2024-11-09 06:51:32,896 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e837ac1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:51:32, skipping insertion in model container [2024-11-09 06:51:32,896 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:31" (2/3) ... [2024-11-09 06:51:32,897 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e837ac1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:51:32, skipping insertion in model container [2024-11-09 06:51:32,897 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:51:32" (3/3) ... [2024-11-09 06:51:32,898 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_03-funloop_simple.i [2024-11-09 06:51:32,922 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:51:32,923 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-09 06:51:32,924 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 06:51:33,063 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 06:51:33,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 181 transitions, 366 flow [2024-11-09 06:51:33,341 INFO L124 PetriNetUnfolderBase]: 6/180 cut-off events. [2024-11-09 06:51:33,341 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:51:33,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 184 conditions, 180 events. 6/180 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 212 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2024-11-09 06:51:33,359 INFO L82 GeneralOperation]: Start removeDead. Operand has 179 places, 181 transitions, 366 flow [2024-11-09 06:51:33,366 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 178 places, 180 transitions, 363 flow [2024-11-09 06:51:33,391 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:51:33,407 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;@6493978d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:51:33,407 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-09 06:51:33,466 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 06:51:33,467 INFO L124 PetriNetUnfolderBase]: 4/112 cut-off events. [2024-11-09 06:51:33,467 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:51:33,467 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:33,468 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] [2024-11-09 06:51:33,468 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:51:33,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:33,482 INFO L85 PathProgramCache]: Analyzing trace with hash -211118510, now seen corresponding path program 1 times [2024-11-09 06:51:33,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:33,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079263905] [2024-11-09 06:51:33,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:33,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:33,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:33,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:33,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:33,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079263905] [2024-11-09 06:51:33,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079263905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:33,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:33,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:51:33,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960339870] [2024-11-09 06:51:33,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:33,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:51:34,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:34,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:51:34,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:51:34,041 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 181 [2024-11-09 06:51:34,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 180 transitions, 363 flow. Second operand has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:34,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:34,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 181 [2024-11-09 06:51:34,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:34,119 INFO L124 PetriNetUnfolderBase]: 14/335 cut-off events. [2024-11-09 06:51:34,119 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 06:51:34,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 369 conditions, 335 events. 14/335 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 776 event pairs, 6 based on Foata normal form. 11/323 useless extension candidates. Maximal degree in co-relation 273. Up to 29 conditions per place. [2024-11-09 06:51:34,125 INFO L140 encePairwiseOnDemand]: 175/181 looper letters, 10 selfloop transitions, 2 changer transitions 0/178 dead transitions. [2024-11-09 06:51:34,125 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 178 transitions, 383 flow [2024-11-09 06:51:34,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:51:34,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:51:34,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 518 transitions. [2024-11-09 06:51:34,141 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9539594843462247 [2024-11-09 06:51:34,143 INFO L175 Difference]: Start difference. First operand has 178 places, 180 transitions, 363 flow. Second operand 3 states and 518 transitions. [2024-11-09 06:51:34,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 178 transitions, 383 flow [2024-11-09 06:51:34,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 178 transitions, 382 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 06:51:34,151 INFO L231 Difference]: Finished difference. Result has 180 places, 178 transitions, 368 flow [2024-11-09 06:51:34,153 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=368, PETRI_PLACES=180, PETRI_TRANSITIONS=178} [2024-11-09 06:51:34,156 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 2 predicate places. [2024-11-09 06:51:34,158 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 178 transitions, 368 flow [2024-11-09 06:51:34,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:34,159 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:34,159 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:34,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:51:34,159 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:51:34,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:34,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1977973560, now seen corresponding path program 1 times [2024-11-09 06:51:34,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:34,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755429236] [2024-11-09 06:51:34,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:34,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:34,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:34,312 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:34,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:34,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755429236] [2024-11-09 06:51:34,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755429236] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:51:34,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [495142003] [2024-11-09 06:51:34,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:34,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:51:34,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:51:34,315 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) [2024-11-09 06:51:34,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:51:34,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:34,395 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 06:51:34,399 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:51:34,422 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:51:34,423 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:51:34,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [495142003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:34,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:51:34,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-09 06:51:34,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511211269] [2024-11-09 06:51:34,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:34,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:51:34,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:34,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:51:34,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:51:34,436 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 181 [2024-11-09 06:51:34,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 178 transitions, 368 flow. Second operand has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:34,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:34,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 181 [2024-11-09 06:51:34,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:34,521 INFO L124 PetriNetUnfolderBase]: 29/451 cut-off events. [2024-11-09 06:51:34,521 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 06:51:34,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 518 conditions, 451 events. 29/451 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1512 event pairs, 8 based on Foata normal form. 3/426 useless extension candidates. Maximal degree in co-relation 439. Up to 39 conditions per place. [2024-11-09 06:51:34,524 INFO L140 encePairwiseOnDemand]: 178/181 looper letters, 14 selfloop transitions, 2 changer transitions 0/183 dead transitions. [2024-11-09 06:51:34,524 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 183 transitions, 410 flow [2024-11-09 06:51:34,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:51:34,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:51:34,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 518 transitions. [2024-11-09 06:51:34,526 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9539594843462247 [2024-11-09 06:51:34,526 INFO L175 Difference]: Start difference. First operand has 180 places, 178 transitions, 368 flow. Second operand 3 states and 518 transitions. [2024-11-09 06:51:34,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 183 transitions, 410 flow [2024-11-09 06:51:34,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 183 transitions, 408 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 06:51:34,530 INFO L231 Difference]: Finished difference. Result has 182 places, 179 transitions, 378 flow [2024-11-09 06:51:34,530 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=378, PETRI_PLACES=182, PETRI_TRANSITIONS=179} [2024-11-09 06:51:34,531 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 4 predicate places. [2024-11-09 06:51:34,531 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 179 transitions, 378 flow [2024-11-09 06:51:34,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:34,531 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:34,532 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:34,550 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 06:51:34,732 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 [2024-11-09 06:51:34,733 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:51:34,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:34,734 INFO L85 PathProgramCache]: Analyzing trace with hash 261699259, now seen corresponding path program 1 times [2024-11-09 06:51:34,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:34,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383413750] [2024-11-09 06:51:34,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:34,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:34,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:34,837 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:34,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:34,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383413750] [2024-11-09 06:51:34,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383413750] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:51:34,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1614599470] [2024-11-09 06:51:34,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:34,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:51:34,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:51:34,840 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) [2024-11-09 06:51:34,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 06:51:34,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:34,914 INFO L255 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:51:34,915 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:51:34,986 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:34,986 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:51:35,028 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:35,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1614599470] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:51:35,032 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:51:35,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-09 06:51:35,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538453464] [2024-11-09 06:51:35,033 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:51:35,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 06:51:35,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:35,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 06:51:35,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 06:51:35,098 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 181 [2024-11-09 06:51:35,104 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 179 transitions, 378 flow. Second operand has 10 states, 10 states have (on average 166.0) internal successors, (1660), 10 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:35,104 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:35,104 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 181 [2024-11-09 06:51:35,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:35,253 INFO L124 PetriNetUnfolderBase]: 15/395 cut-off events. [2024-11-09 06:51:35,253 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 06:51:35,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 465 conditions, 395 events. 15/395 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1098 event pairs, 10 based on Foata normal form. 2/375 useless extension candidates. Maximal degree in co-relation 355. Up to 34 conditions per place. [2024-11-09 06:51:35,255 INFO L140 encePairwiseOnDemand]: 175/181 looper letters, 14 selfloop transitions, 9 changer transitions 0/187 dead transitions. [2024-11-09 06:51:35,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 187 transitions, 442 flow [2024-11-09 06:51:35,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:51:35,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:51:35,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1501 transitions. [2024-11-09 06:51:35,258 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9214241866175568 [2024-11-09 06:51:35,259 INFO L175 Difference]: Start difference. First operand has 182 places, 179 transitions, 378 flow. Second operand 9 states and 1501 transitions. [2024-11-09 06:51:35,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 187 transitions, 442 flow [2024-11-09 06:51:35,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 187 transitions, 440 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 06:51:35,262 INFO L231 Difference]: Finished difference. Result has 192 places, 185 transitions, 426 flow [2024-11-09 06:51:35,263 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=426, PETRI_PLACES=192, PETRI_TRANSITIONS=185} [2024-11-09 06:51:35,264 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 14 predicate places. [2024-11-09 06:51:35,264 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 185 transitions, 426 flow [2024-11-09 06:51:35,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 166.0) internal successors, (1660), 10 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:35,265 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:35,265 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:35,281 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 06:51:35,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-09 06:51:35,470 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:51:35,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:35,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1127065211, now seen corresponding path program 2 times [2024-11-09 06:51:35,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:35,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315949221] [2024-11-09 06:51:35,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:35,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:35,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:35,736 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:35,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:35,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315949221] [2024-11-09 06:51:35,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315949221] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:51:35,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743496372] [2024-11-09 06:51:35,739 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:51:35,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:51:35,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:51:35,742 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) [2024-11-09 06:51:35,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 06:51:35,815 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 06:51:35,815 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:51:35,816 INFO L255 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 06:51:35,821 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:51:35,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-09 06:51:35,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-09 06:51:35,894 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:51:35,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-11-09 06:51:35,922 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:51:35,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-11-09 06:51:35,949 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 06:51:35,949 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:51:35,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743496372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:35,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:51:35,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-09 06:51:35,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20755961] [2024-11-09 06:51:35,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:35,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:51:35,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:35,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:51:35,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:51:36,138 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-09 06:51:36,140 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 185 transitions, 426 flow. Second operand has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:36,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:36,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-09 06:51:36,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:36,434 INFO L124 PetriNetUnfolderBase]: 355/1812 cut-off events. [2024-11-09 06:51:36,434 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-09 06:51:36,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2588 conditions, 1812 events. 355/1812 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 12665 event pairs, 172 based on Foata normal form. 0/1684 useless extension candidates. Maximal degree in co-relation 2476. Up to 583 conditions per place. [2024-11-09 06:51:36,443 INFO L140 encePairwiseOnDemand]: 166/181 looper letters, 34 selfloop transitions, 38 changer transitions 0/230 dead transitions. [2024-11-09 06:51:36,443 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 230 transitions, 660 flow [2024-11-09 06:51:36,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:51:36,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:51:36,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 979 transitions. [2024-11-09 06:51:36,446 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9014732965009208 [2024-11-09 06:51:36,446 INFO L175 Difference]: Start difference. First operand has 192 places, 185 transitions, 426 flow. Second operand 6 states and 979 transitions. [2024-11-09 06:51:36,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 230 transitions, 660 flow [2024-11-09 06:51:36,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 230 transitions, 654 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-09 06:51:36,485 INFO L231 Difference]: Finished difference. Result has 201 places, 222 transitions, 674 flow [2024-11-09 06:51:36,486 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=420, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=674, PETRI_PLACES=201, PETRI_TRANSITIONS=222} [2024-11-09 06:51:36,487 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 23 predicate places. [2024-11-09 06:51:36,487 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 222 transitions, 674 flow [2024-11-09 06:51:36,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:36,488 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:36,489 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:36,505 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 06:51:36,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:51:36,693 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:51:36,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:36,693 INFO L85 PathProgramCache]: Analyzing trace with hash -378395017, now seen corresponding path program 1 times [2024-11-09 06:51:36,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:36,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383350387] [2024-11-09 06:51:36,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:36,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:36,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:36,996 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:37,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:37,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383350387] [2024-11-09 06:51:37,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383350387] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:51:37,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343668008] [2024-11-09 06:51:37,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:37,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:51:37,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:51:37,003 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) [2024-11-09 06:51:37,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 06:51:37,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:37,137 INFO L255 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 06:51:37,139 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:51:37,210 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:37,210 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:51:37,330 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:37,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343668008] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:51:37,334 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:51:37,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-09 06:51:37,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049218816] [2024-11-09 06:51:37,334 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:51:37,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 06:51:37,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:37,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 06:51:37,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-09 06:51:37,397 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 181 [2024-11-09 06:51:37,400 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 222 transitions, 674 flow. Second operand has 18 states, 18 states have (on average 166.0) internal successors, (2988), 18 states have internal predecessors, (2988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:37,404 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:37,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 181 [2024-11-09 06:51:37,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:37,788 INFO L124 PetriNetUnfolderBase]: 133/1064 cut-off events. [2024-11-09 06:51:37,789 INFO L125 PetriNetUnfolderBase]: For 104/117 co-relation queries the response was YES. [2024-11-09 06:51:37,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1668 conditions, 1064 events. 133/1064 cut-off events. For 104/117 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 5973 event pairs, 28 based on Foata normal form. 4/1012 useless extension candidates. Maximal degree in co-relation 1479. Up to 177 conditions per place. [2024-11-09 06:51:37,797 INFO L140 encePairwiseOnDemand]: 175/181 looper letters, 18 selfloop transitions, 21 changer transitions 0/240 dead transitions. [2024-11-09 06:51:37,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 240 transitions, 840 flow [2024-11-09 06:51:37,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-09 06:51:37,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-09 06:51:37,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3487 transitions. [2024-11-09 06:51:37,809 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9173901604840832 [2024-11-09 06:51:37,810 INFO L175 Difference]: Start difference. First operand has 201 places, 222 transitions, 674 flow. Second operand 21 states and 3487 transitions. [2024-11-09 06:51:37,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 240 transitions, 840 flow [2024-11-09 06:51:37,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 240 transitions, 840 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:51:37,820 INFO L231 Difference]: Finished difference. Result has 226 places, 235 transitions, 804 flow [2024-11-09 06:51:37,821 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=674, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=804, PETRI_PLACES=226, PETRI_TRANSITIONS=235} [2024-11-09 06:51:37,822 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 48 predicate places. [2024-11-09 06:51:37,823 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 235 transitions, 804 flow [2024-11-09 06:51:37,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 166.0) internal successors, (2988), 18 states have internal predecessors, (2988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:37,825 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:37,825 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:37,844 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 06:51:38,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:51:38,031 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:51:38,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:38,032 INFO L85 PathProgramCache]: Analyzing trace with hash -271780361, now seen corresponding path program 2 times [2024-11-09 06:51:38,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:38,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762632878] [2024-11-09 06:51:38,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:38,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:38,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:38,486 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:38,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:38,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762632878] [2024-11-09 06:51:38,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762632878] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:51:38,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303735815] [2024-11-09 06:51:38,487 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:51:38,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:51:38,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:51:38,488 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:51:38,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 06:51:38,568 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 06:51:38,568 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:51:38,569 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 06:51:38,571 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:51:38,581 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-09 06:51:38,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-09 06:51:38,668 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:51:38,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-11-09 06:51:38,733 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:51:38,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-11-09 06:51:38,789 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-09 06:51:38,789 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:51:38,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [303735815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:38,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:51:38,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-09 06:51:38,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980694646] [2024-11-09 06:51:38,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:38,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:51:38,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:38,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:51:38,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-09 06:51:39,208 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-09 06:51:39,209 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 235 transitions, 804 flow. Second operand has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:39,209 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:39,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-09 06:51:39,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:39,609 INFO L124 PetriNetUnfolderBase]: 451/2077 cut-off events. [2024-11-09 06:51:39,610 INFO L125 PetriNetUnfolderBase]: For 479/531 co-relation queries the response was YES. [2024-11-09 06:51:39,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3738 conditions, 2077 events. 451/2077 cut-off events. For 479/531 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 14627 event pairs, 153 based on Foata normal form. 13/1992 useless extension candidates. Maximal degree in co-relation 3542. Up to 712 conditions per place. [2024-11-09 06:51:39,624 INFO L140 encePairwiseOnDemand]: 170/181 looper letters, 67 selfloop transitions, 30 changer transitions 0/272 dead transitions. [2024-11-09 06:51:39,624 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 272 transitions, 1114 flow [2024-11-09 06:51:39,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:51:39,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:51:39,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 963 transitions. [2024-11-09 06:51:39,627 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8867403314917127 [2024-11-09 06:51:39,627 INFO L175 Difference]: Start difference. First operand has 226 places, 235 transitions, 804 flow. Second operand 6 states and 963 transitions. [2024-11-09 06:51:39,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 272 transitions, 1114 flow [2024-11-09 06:51:39,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 272 transitions, 1090 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-09 06:51:39,633 INFO L231 Difference]: Finished difference. Result has 230 places, 264 transitions, 1030 flow [2024-11-09 06:51:39,634 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=780, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1030, PETRI_PLACES=230, PETRI_TRANSITIONS=264} [2024-11-09 06:51:39,634 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 52 predicate places. [2024-11-09 06:51:39,634 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 264 transitions, 1030 flow [2024-11-09 06:51:39,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:39,635 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:39,636 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:39,650 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 06:51:39,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:51:39,840 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:51:39,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:39,841 INFO L85 PathProgramCache]: Analyzing trace with hash 631674752, now seen corresponding path program 1 times [2024-11-09 06:51:39,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:39,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688378195] [2024-11-09 06:51:39,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:39,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:39,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:40,231 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:40,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:40,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688378195] [2024-11-09 06:51:40,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688378195] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:51:40,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635201936] [2024-11-09 06:51:40,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:40,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:51:40,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:51:40,234 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:51:40,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 06:51:40,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:40,325 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 06:51:40,327 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:51:40,398 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:40,398 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:51:40,629 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:40,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1635201936] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:51:40,630 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:51:40,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-09 06:51:40,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742377655] [2024-11-09 06:51:40,631 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:51:40,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 06:51:40,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:40,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 06:51:40,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-09 06:51:40,664 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 181 [2024-11-09 06:51:40,668 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 264 transitions, 1030 flow. Second operand has 23 states, 23 states have (on average 166.08695652173913) internal successors, (3820), 23 states have internal predecessors, (3820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:40,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:40,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 181 [2024-11-09 06:51:40,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:41,153 INFO L124 PetriNetUnfolderBase]: 236/1582 cut-off events. [2024-11-09 06:51:41,153 INFO L125 PetriNetUnfolderBase]: For 548/581 co-relation queries the response was YES. [2024-11-09 06:51:41,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2913 conditions, 1582 events. 236/1582 cut-off events. For 548/581 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 10196 event pairs, 35 based on Foata normal form. 13/1528 useless extension candidates. Maximal degree in co-relation 2636. Up to 221 conditions per place. [2024-11-09 06:51:41,166 INFO L140 encePairwiseOnDemand]: 175/181 looper letters, 21 selfloop transitions, 30 changer transitions 0/281 dead transitions. [2024-11-09 06:51:41,166 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 281 transitions, 1254 flow [2024-11-09 06:51:41,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-09 06:51:41,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-09 06:51:41,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4974 transitions. [2024-11-09 06:51:41,175 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9160220994475138 [2024-11-09 06:51:41,176 INFO L175 Difference]: Start difference. First operand has 230 places, 264 transitions, 1030 flow. Second operand 30 states and 4974 transitions. [2024-11-09 06:51:41,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 281 transitions, 1254 flow [2024-11-09 06:51:41,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 281 transitions, 1254 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:51:41,185 INFO L231 Difference]: Finished difference. Result has 263 places, 274 transitions, 1182 flow [2024-11-09 06:51:41,185 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=1030, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1182, PETRI_PLACES=263, PETRI_TRANSITIONS=274} [2024-11-09 06:51:41,186 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 85 predicate places. [2024-11-09 06:51:41,186 INFO L471 AbstractCegarLoop]: Abstraction has has 263 places, 274 transitions, 1182 flow [2024-11-09 06:51:41,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 166.08695652173913) internal successors, (3820), 23 states have internal predecessors, (3820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:41,188 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:41,188 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:41,209 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 06:51:41,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:51:41,393 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:51:41,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:41,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1177218906, now seen corresponding path program 2 times [2024-11-09 06:51:41,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:41,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340324813] [2024-11-09 06:51:41,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:41,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:41,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:42,355 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:51:42,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:42,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340324813] [2024-11-09 06:51:42,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340324813] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:42,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:42,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:51:42,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535092452] [2024-11-09 06:51:42,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:42,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:51:42,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:42,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:51:42,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:51:42,596 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 181 [2024-11-09 06:51:42,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 274 transitions, 1182 flow. Second operand has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:42,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:42,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 181 [2024-11-09 06:51:42,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:43,459 INFO L124 PetriNetUnfolderBase]: 1000/3561 cut-off events. [2024-11-09 06:51:43,460 INFO L125 PetriNetUnfolderBase]: For 1857/1926 co-relation queries the response was YES. [2024-11-09 06:51:43,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7941 conditions, 3561 events. 1000/3561 cut-off events. For 1857/1926 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 26719 event pairs, 304 based on Foata normal form. 18/3379 useless extension candidates. Maximal degree in co-relation 7663. Up to 1732 conditions per place. [2024-11-09 06:51:43,480 INFO L140 encePairwiseOnDemand]: 158/181 looper letters, 100 selfloop transitions, 89 changer transitions 0/361 dead transitions. [2024-11-09 06:51:43,480 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 361 transitions, 1900 flow [2024-11-09 06:51:43,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:51:43,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:51:43,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 961 transitions. [2024-11-09 06:51:43,482 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8848987108655617 [2024-11-09 06:51:43,482 INFO L175 Difference]: Start difference. First operand has 263 places, 274 transitions, 1182 flow. Second operand 6 states and 961 transitions. [2024-11-09 06:51:43,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 361 transitions, 1900 flow [2024-11-09 06:51:43,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 361 transitions, 1854 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-09 06:51:43,493 INFO L231 Difference]: Finished difference. Result has 255 places, 353 transitions, 1874 flow [2024-11-09 06:51:43,494 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=1136, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1874, PETRI_PLACES=255, PETRI_TRANSITIONS=353} [2024-11-09 06:51:43,496 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 77 predicate places. [2024-11-09 06:51:43,496 INFO L471 AbstractCegarLoop]: Abstraction has has 255 places, 353 transitions, 1874 flow [2024-11-09 06:51:43,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:43,496 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:43,497 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:43,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 06:51:43,497 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:51:43,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:43,497 INFO L85 PathProgramCache]: Analyzing trace with hash -723352546, now seen corresponding path program 1 times [2024-11-09 06:51:43,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:43,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111250633] [2024-11-09 06:51:43,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:43,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:43,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:44,025 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:51:44,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:44,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111250633] [2024-11-09 06:51:44,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111250633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:44,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:44,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:51:44,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511125213] [2024-11-09 06:51:44,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:44,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:51:44,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:44,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:51:44,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:51:44,140 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 181 [2024-11-09 06:51:44,141 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 353 transitions, 1874 flow. Second operand has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:44,141 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:44,141 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 181 [2024-11-09 06:51:44,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:44,953 INFO L124 PetriNetUnfolderBase]: 1203/4090 cut-off events. [2024-11-09 06:51:44,953 INFO L125 PetriNetUnfolderBase]: For 4645/4768 co-relation queries the response was YES. [2024-11-09 06:51:44,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10932 conditions, 4090 events. 1203/4090 cut-off events. For 4645/4768 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 30853 event pairs, 276 based on Foata normal form. 21/3965 useless extension candidates. Maximal degree in co-relation 10671. Up to 1975 conditions per place. [2024-11-09 06:51:44,990 INFO L140 encePairwiseOnDemand]: 166/181 looper letters, 169 selfloop transitions, 71 changer transitions 0/414 dead transitions. [2024-11-09 06:51:44,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 414 transitions, 2708 flow [2024-11-09 06:51:44,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:51:44,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:51:44,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 929 transitions. [2024-11-09 06:51:44,994 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8554327808471455 [2024-11-09 06:51:44,994 INFO L175 Difference]: Start difference. First operand has 255 places, 353 transitions, 1874 flow. Second operand 6 states and 929 transitions. [2024-11-09 06:51:44,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 414 transitions, 2708 flow [2024-11-09 06:51:45,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 414 transitions, 2612 flow, removed 48 selfloop flow, removed 0 redundant places. [2024-11-09 06:51:45,028 INFO L231 Difference]: Finished difference. Result has 265 places, 406 transitions, 2454 flow [2024-11-09 06:51:45,029 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=1784, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2454, PETRI_PLACES=265, PETRI_TRANSITIONS=406} [2024-11-09 06:51:45,030 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 87 predicate places. [2024-11-09 06:51:45,030 INFO L471 AbstractCegarLoop]: Abstraction has has 265 places, 406 transitions, 2454 flow [2024-11-09 06:51:45,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:45,031 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:45,032 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:45,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 06:51:45,032 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:51:45,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:45,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1817390323, now seen corresponding path program 1 times [2024-11-09 06:51:45,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:45,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120279335] [2024-11-09 06:51:45,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:45,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:45,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:45,663 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:51:45,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:45,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120279335] [2024-11-09 06:51:45,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120279335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:45,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:45,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:51:45,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252199049] [2024-11-09 06:51:45,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:45,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:51:45,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:45,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:51:45,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:51:47,000 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-09 06:51:47,002 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 406 transitions, 2454 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:47,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:47,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-09 06:51:47,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:48,973 INFO L124 PetriNetUnfolderBase]: 2157/8130 cut-off events. [2024-11-09 06:51:48,973 INFO L125 PetriNetUnfolderBase]: For 10431/10670 co-relation queries the response was YES. [2024-11-09 06:51:48,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22215 conditions, 8130 events. 2157/8130 cut-off events. For 10431/10670 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 74184 event pairs, 297 based on Foata normal form. 73/8074 useless extension candidates. Maximal degree in co-relation 21937. Up to 1356 conditions per place. [2024-11-09 06:51:49,023 INFO L140 encePairwiseOnDemand]: 167/181 looper letters, 74 selfloop transitions, 15 changer transitions 2/469 dead transitions. [2024-11-09 06:51:49,023 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 469 transitions, 2794 flow [2024-11-09 06:51:49,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:51:49,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:51:49,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1447 transitions. [2024-11-09 06:51:49,025 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8882750153468385 [2024-11-09 06:51:49,026 INFO L175 Difference]: Start difference. First operand has 265 places, 406 transitions, 2454 flow. Second operand 9 states and 1447 transitions. [2024-11-09 06:51:49,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 469 transitions, 2794 flow [2024-11-09 06:51:49,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 469 transitions, 2712 flow, removed 41 selfloop flow, removed 0 redundant places. [2024-11-09 06:51:49,086 INFO L231 Difference]: Finished difference. Result has 280 places, 421 transitions, 2490 flow [2024-11-09 06:51:49,087 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=2372, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2490, PETRI_PLACES=280, PETRI_TRANSITIONS=421} [2024-11-09 06:51:49,087 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 102 predicate places. [2024-11-09 06:51:49,087 INFO L471 AbstractCegarLoop]: Abstraction has has 280 places, 421 transitions, 2490 flow [2024-11-09 06:51:49,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:49,088 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:49,088 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:49,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 06:51:49,088 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:51:49,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:49,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1367447591, now seen corresponding path program 2 times [2024-11-09 06:51:49,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:49,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663756718] [2024-11-09 06:51:49,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:49,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:49,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:49,677 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:51:49,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:49,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663756718] [2024-11-09 06:51:49,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663756718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:49,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:49,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:51:49,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684976424] [2024-11-09 06:51:49,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:49,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:51:49,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:49,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:51:49,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:51:51,025 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-09 06:51:51,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 421 transitions, 2490 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:51,027 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:51,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-09 06:51:51,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:53,178 INFO L124 PetriNetUnfolderBase]: 2461/9026 cut-off events. [2024-11-09 06:51:53,179 INFO L125 PetriNetUnfolderBase]: For 12350/12657 co-relation queries the response was YES. [2024-11-09 06:51:53,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25977 conditions, 9026 events. 2461/9026 cut-off events. For 12350/12657 co-relation queries the response was YES. Maximal size of possible extension queue 293. Compared 84796 event pairs, 299 based on Foata normal form. 80/8946 useless extension candidates. Maximal degree in co-relation 25691. Up to 1603 conditions per place. [2024-11-09 06:51:53,381 INFO L140 encePairwiseOnDemand]: 168/181 looper letters, 113 selfloop transitions, 20 changer transitions 0/511 dead transitions. [2024-11-09 06:51:53,385 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 511 transitions, 3154 flow [2024-11-09 06:51:53,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:51:53,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:51:53,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1446 transitions. [2024-11-09 06:51:53,392 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8876611418047882 [2024-11-09 06:51:53,392 INFO L175 Difference]: Start difference. First operand has 280 places, 421 transitions, 2490 flow. Second operand 9 states and 1446 transitions. [2024-11-09 06:51:53,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 511 transitions, 3154 flow [2024-11-09 06:51:53,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 511 transitions, 3154 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:51:53,456 INFO L231 Difference]: Finished difference. Result has 295 places, 437 transitions, 2664 flow [2024-11-09 06:51:53,456 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=2490, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=404, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2664, PETRI_PLACES=295, PETRI_TRANSITIONS=437} [2024-11-09 06:51:53,457 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 117 predicate places. [2024-11-09 06:51:53,457 INFO L471 AbstractCegarLoop]: Abstraction has has 295 places, 437 transitions, 2664 flow [2024-11-09 06:51:53,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:53,458 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:53,458 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:53,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 06:51:53,458 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:51:53,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:53,459 INFO L85 PathProgramCache]: Analyzing trace with hash 405411171, now seen corresponding path program 3 times [2024-11-09 06:51:53,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:53,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361539572] [2024-11-09 06:51:53,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:53,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:53,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:53,839 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:51:53,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:53,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361539572] [2024-11-09 06:51:53,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361539572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:53,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:53,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:51:53,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092921658] [2024-11-09 06:51:53,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:53,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:51:53,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:53,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:51:53,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:51:55,028 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-09 06:51:55,029 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 437 transitions, 2664 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:55,029 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:55,029 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-09 06:51:55,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:57,646 INFO L124 PetriNetUnfolderBase]: 2736/10058 cut-off events. [2024-11-09 06:51:57,646 INFO L125 PetriNetUnfolderBase]: For 16127/16587 co-relation queries the response was YES. [2024-11-09 06:51:57,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30201 conditions, 10058 events. 2736/10058 cut-off events. For 16127/16587 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 95471 event pairs, 315 based on Foata normal form. 104/10013 useless extension candidates. Maximal degree in co-relation 29907. Up to 1744 conditions per place. [2024-11-09 06:51:57,737 INFO L140 encePairwiseOnDemand]: 167/181 looper letters, 119 selfloop transitions, 22 changer transitions 2/521 dead transitions. [2024-11-09 06:51:57,737 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 521 transitions, 3458 flow [2024-11-09 06:51:57,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:51:57,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:51:57,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1452 transitions. [2024-11-09 06:51:57,743 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8913443830570903 [2024-11-09 06:51:57,743 INFO L175 Difference]: Start difference. First operand has 295 places, 437 transitions, 2664 flow. Second operand 9 states and 1452 transitions. [2024-11-09 06:51:57,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 521 transitions, 3458 flow [2024-11-09 06:51:57,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 521 transitions, 3417 flow, removed 15 selfloop flow, removed 1 redundant places. [2024-11-09 06:51:57,849 INFO L231 Difference]: Finished difference. Result has 307 places, 449 transitions, 2835 flow [2024-11-09 06:51:57,849 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=2649, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=437, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2835, PETRI_PLACES=307, PETRI_TRANSITIONS=449} [2024-11-09 06:51:57,850 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 129 predicate places. [2024-11-09 06:51:57,850 INFO L471 AbstractCegarLoop]: Abstraction has has 307 places, 449 transitions, 2835 flow [2024-11-09 06:51:57,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:57,851 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:57,851 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:57,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 06:51:57,852 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:51:57,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:57,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1487146101, now seen corresponding path program 4 times [2024-11-09 06:51:57,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:57,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874737530] [2024-11-09 06:51:57,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:57,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:57,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:58,377 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:51:58,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:58,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874737530] [2024-11-09 06:51:58,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874737530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:58,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:58,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:51:58,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141110830] [2024-11-09 06:51:58,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:58,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:51:58,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:58,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:51:58,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:51:59,717 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-09 06:51:59,719 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 449 transitions, 2835 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:59,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:59,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-09 06:51:59,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:52:02,587 INFO L124 PetriNetUnfolderBase]: 3055/11086 cut-off events. [2024-11-09 06:52:02,592 INFO L125 PetriNetUnfolderBase]: For 19927/20397 co-relation queries the response was YES. [2024-11-09 06:52:02,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34182 conditions, 11086 events. 3055/11086 cut-off events. For 19927/20397 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 106920 event pairs, 318 based on Foata normal form. 119/11032 useless extension candidates. Maximal degree in co-relation 33882. Up to 1981 conditions per place. [2024-11-09 06:52:02,768 INFO L140 encePairwiseOnDemand]: 167/181 looper letters, 134 selfloop transitions, 27 changer transitions 0/539 dead transitions. [2024-11-09 06:52:02,773 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 539 transitions, 3784 flow [2024-11-09 06:52:02,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:52:02,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:52:02,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1452 transitions. [2024-11-09 06:52:02,776 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8913443830570903 [2024-11-09 06:52:02,776 INFO L175 Difference]: Start difference. First operand has 307 places, 449 transitions, 2835 flow. Second operand 9 states and 1452 transitions. [2024-11-09 06:52:02,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 539 transitions, 3784 flow [2024-11-09 06:52:02,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 539 transitions, 3705 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-11-09 06:52:02,947 INFO L231 Difference]: Finished difference. Result has 317 places, 461 transitions, 3011 flow [2024-11-09 06:52:02,947 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=2809, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=449, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=426, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3011, PETRI_PLACES=317, PETRI_TRANSITIONS=461} [2024-11-09 06:52:02,949 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 139 predicate places. [2024-11-09 06:52:02,949 INFO L471 AbstractCegarLoop]: Abstraction has has 317 places, 461 transitions, 3011 flow [2024-11-09 06:52:02,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:02,950 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:52:02,951 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:02,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 06:52:02,951 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:52:02,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:02,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1048511887, now seen corresponding path program 5 times [2024-11-09 06:52:02,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:52:02,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848564003] [2024-11-09 06:52:02,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:02,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:02,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:03,628 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:52:03,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:52:03,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848564003] [2024-11-09 06:52:03,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848564003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:03,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:03,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:52:03,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077467504] [2024-11-09 06:52:03,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:03,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:52:03,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:52:03,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:52:03,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:52:04,792 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-09 06:52:04,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 461 transitions, 3011 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:04,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:52:04,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-09 06:52:04,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:52:07,998 INFO L124 PetriNetUnfolderBase]: 3363/12284 cut-off events. [2024-11-09 06:52:07,998 INFO L125 PetriNetUnfolderBase]: For 24949/25542 co-relation queries the response was YES. [2024-11-09 06:52:08,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38683 conditions, 12284 events. 3363/12284 cut-off events. For 24949/25542 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 120966 event pairs, 345 based on Foata normal form. 113/12227 useless extension candidates. Maximal degree in co-relation 38378. Up to 2138 conditions per place. [2024-11-09 06:52:08,083 INFO L140 encePairwiseOnDemand]: 167/181 looper letters, 134 selfloop transitions, 29 changer transitions 1/542 dead transitions. [2024-11-09 06:52:08,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 542 transitions, 3997 flow [2024-11-09 06:52:08,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:52:08,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:52:08,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1455 transitions. [2024-11-09 06:52:08,086 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8931860036832413 [2024-11-09 06:52:08,086 INFO L175 Difference]: Start difference. First operand has 317 places, 461 transitions, 3011 flow. Second operand 9 states and 1455 transitions. [2024-11-09 06:52:08,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 542 transitions, 3997 flow [2024-11-09 06:52:08,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 542 transitions, 3906 flow, removed 10 selfloop flow, removed 3 redundant places. [2024-11-09 06:52:08,205 INFO L231 Difference]: Finished difference. Result has 328 places, 476 transitions, 3253 flow [2024-11-09 06:52:08,205 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=2970, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=461, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=437, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3253, PETRI_PLACES=328, PETRI_TRANSITIONS=476} [2024-11-09 06:52:08,206 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 150 predicate places. [2024-11-09 06:52:08,206 INFO L471 AbstractCegarLoop]: Abstraction has has 328 places, 476 transitions, 3253 flow [2024-11-09 06:52:08,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:08,206 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:52:08,207 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:08,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 06:52:08,207 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:52:08,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:08,207 INFO L85 PathProgramCache]: Analyzing trace with hash -756537319, now seen corresponding path program 6 times [2024-11-09 06:52:08,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:52:08,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597074437] [2024-11-09 06:52:08,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:08,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:08,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:08,521 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:52:08,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:52:08,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597074437] [2024-11-09 06:52:08,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597074437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:08,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:08,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:52:08,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894753622] [2024-11-09 06:52:08,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:08,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:52:08,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:52:08,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:52:08,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:52:09,639 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-09 06:52:09,640 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 476 transitions, 3253 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:09,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:52:09,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-09 06:52:09,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:52:12,673 INFO L124 PetriNetUnfolderBase]: 3707/13415 cut-off events. [2024-11-09 06:52:12,673 INFO L125 PetriNetUnfolderBase]: For 31084/31703 co-relation queries the response was YES. [2024-11-09 06:52:12,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43283 conditions, 13415 events. 3707/13415 cut-off events. For 31084/31703 co-relation queries the response was YES. Maximal size of possible extension queue 343. Compared 134676 event pairs, 368 based on Foata normal form. 120/13341 useless extension candidates. Maximal degree in co-relation 42972. Up to 2363 conditions per place. [2024-11-09 06:52:12,802 INFO L140 encePairwiseOnDemand]: 167/181 looper letters, 150 selfloop transitions, 34 changer transitions 0/562 dead transitions. [2024-11-09 06:52:12,802 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 562 transitions, 4377 flow [2024-11-09 06:52:12,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:52:12,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:52:12,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1455 transitions. [2024-11-09 06:52:12,808 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8931860036832413 [2024-11-09 06:52:12,809 INFO L175 Difference]: Start difference. First operand has 328 places, 476 transitions, 3253 flow. Second operand 9 states and 1455 transitions. [2024-11-09 06:52:12,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 562 transitions, 4377 flow [2024-11-09 06:52:12,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 562 transitions, 4281 flow, removed 27 selfloop flow, removed 2 redundant places. [2024-11-09 06:52:12,974 INFO L231 Difference]: Finished difference. Result has 340 places, 491 transitions, 3496 flow [2024-11-09 06:52:12,974 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=3194, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=476, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=447, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3496, PETRI_PLACES=340, PETRI_TRANSITIONS=491} [2024-11-09 06:52:12,974 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 162 predicate places. [2024-11-09 06:52:12,975 INFO L471 AbstractCegarLoop]: Abstraction has has 340 places, 491 transitions, 3496 flow [2024-11-09 06:52:12,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:12,977 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:52:12,977 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:12,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 06:52:12,977 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:52:12,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:12,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1594130475, now seen corresponding path program 7 times [2024-11-09 06:52:12,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:52:12,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730240750] [2024-11-09 06:52:12,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:12,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:13,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:13,631 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:52:13,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:52:13,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730240750] [2024-11-09 06:52:13,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730240750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:13,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:13,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:52:13,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580602501] [2024-11-09 06:52:13,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:13,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:52:13,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:52:13,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:52:13,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:52:14,844 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-09 06:52:14,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 491 transitions, 3496 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:14,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:52:14,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-09 06:52:14,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:52:18,197 INFO L124 PetriNetUnfolderBase]: 4051/14662 cut-off events. [2024-11-09 06:52:18,197 INFO L125 PetriNetUnfolderBase]: For 39610/40292 co-relation queries the response was YES. [2024-11-09 06:52:18,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48604 conditions, 14662 events. 4051/14662 cut-off events. For 39610/40292 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 149929 event pairs, 441 based on Foata normal form. 112/14568 useless extension candidates. Maximal degree in co-relation 48287. Up to 2511 conditions per place. [2024-11-09 06:52:18,329 INFO L140 encePairwiseOnDemand]: 167/181 looper letters, 148 selfloop transitions, 36 changer transitions 0/562 dead transitions. [2024-11-09 06:52:18,330 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 562 transitions, 4599 flow [2024-11-09 06:52:18,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:52:18,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:52:18,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1457 transitions. [2024-11-09 06:52:18,332 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.894413750767342 [2024-11-09 06:52:18,332 INFO L175 Difference]: Start difference. First operand has 340 places, 491 transitions, 3496 flow. Second operand 9 states and 1457 transitions. [2024-11-09 06:52:18,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 562 transitions, 4599 flow [2024-11-09 06:52:18,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 562 transitions, 4499 flow, removed 26 selfloop flow, removed 2 redundant places. [2024-11-09 06:52:18,559 INFO L231 Difference]: Finished difference. Result has 353 places, 510 transitions, 3852 flow [2024-11-09 06:52:18,559 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=3418, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=491, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3852, PETRI_PLACES=353, PETRI_TRANSITIONS=510} [2024-11-09 06:52:18,560 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 175 predicate places. [2024-11-09 06:52:18,560 INFO L471 AbstractCegarLoop]: Abstraction has has 353 places, 510 transitions, 3852 flow [2024-11-09 06:52:18,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:18,561 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:52:18,561 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:18,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 06:52:18,561 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:52:18,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:18,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1531376013, now seen corresponding path program 8 times [2024-11-09 06:52:18,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:52:18,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531895171] [2024-11-09 06:52:18,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:18,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:18,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:18,955 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:52:18,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:52:18,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531895171] [2024-11-09 06:52:18,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531895171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:18,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:18,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:52:18,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534754585] [2024-11-09 06:52:18,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:18,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:52:18,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:52:18,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:52:18,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:52:19,580 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-09 06:52:19,582 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 510 transitions, 3852 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:19,582 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:52:19,582 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-09 06:52:19,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:52:23,014 INFO L124 PetriNetUnfolderBase]: 4625/16561 cut-off events. [2024-11-09 06:52:23,014 INFO L125 PetriNetUnfolderBase]: For 50316/51214 co-relation queries the response was YES. [2024-11-09 06:52:23,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56132 conditions, 16561 events. 4625/16561 cut-off events. For 50316/51214 co-relation queries the response was YES. Maximal size of possible extension queue 538. Compared 174797 event pairs, 462 based on Foata normal form. 139/16490 useless extension candidates. Maximal degree in co-relation 55808. Up to 2908 conditions per place. [2024-11-09 06:52:23,172 INFO L140 encePairwiseOnDemand]: 166/181 looper letters, 169 selfloop transitions, 45 changer transitions 0/592 dead transitions. [2024-11-09 06:52:23,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 592 transitions, 5156 flow [2024-11-09 06:52:23,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:52:23,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:52:23,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1459 transitions. [2024-11-09 06:52:23,177 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8956414978514426 [2024-11-09 06:52:23,177 INFO L175 Difference]: Start difference. First operand has 353 places, 510 transitions, 3852 flow. Second operand 9 states and 1459 transitions. [2024-11-09 06:52:23,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 592 transitions, 5156 flow [2024-11-09 06:52:23,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 592 transitions, 5052 flow, removed 52 selfloop flow, removed 0 redundant places. [2024-11-09 06:52:23,448 INFO L231 Difference]: Finished difference. Result has 368 places, 528 transitions, 4205 flow [2024-11-09 06:52:23,449 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=3748, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=510, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=470, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4205, PETRI_PLACES=368, PETRI_TRANSITIONS=528} [2024-11-09 06:52:23,449 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 190 predicate places. [2024-11-09 06:52:23,449 INFO L471 AbstractCegarLoop]: Abstraction has has 368 places, 528 transitions, 4205 flow [2024-11-09 06:52:23,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:23,450 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:52:23,450 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:23,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 06:52:23,450 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:52:23,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:23,451 INFO L85 PathProgramCache]: Analyzing trace with hash 345094149, now seen corresponding path program 9 times [2024-11-09 06:52:23,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:52:23,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230602682] [2024-11-09 06:52:23,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:23,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:23,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:23,807 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:52:23,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:52:23,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230602682] [2024-11-09 06:52:23,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230602682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:23,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:23,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:52:23,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655433631] [2024-11-09 06:52:23,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:23,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:52:23,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:52:23,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:52:23,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:52:24,253 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-09 06:52:24,254 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 528 transitions, 4205 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:24,254 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:52:24,255 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-09 06:52:24,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:52:27,961 INFO L124 PetriNetUnfolderBase]: 5214/18628 cut-off events. [2024-11-09 06:52:27,961 INFO L125 PetriNetUnfolderBase]: For 62392/63410 co-relation queries the response was YES. [2024-11-09 06:52:28,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64475 conditions, 18628 events. 5214/18628 cut-off events. For 62392/63410 co-relation queries the response was YES. Maximal size of possible extension queue 662. Compared 202609 event pairs, 506 based on Foata normal form. 152/18561 useless extension candidates. Maximal degree in co-relation 64143. Up to 3261 conditions per place. [2024-11-09 06:52:28,172 INFO L140 encePairwiseOnDemand]: 166/181 looper letters, 184 selfloop transitions, 46 changer transitions 0/608 dead transitions. [2024-11-09 06:52:28,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 608 transitions, 5463 flow [2024-11-09 06:52:28,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:52:28,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:52:28,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1459 transitions. [2024-11-09 06:52:28,174 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8956414978514426 [2024-11-09 06:52:28,174 INFO L175 Difference]: Start difference. First operand has 368 places, 528 transitions, 4205 flow. Second operand 9 states and 1459 transitions. [2024-11-09 06:52:28,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 608 transitions, 5463 flow [2024-11-09 06:52:28,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 608 transitions, 5377 flow, removed 43 selfloop flow, removed 0 redundant places. [2024-11-09 06:52:28,503 INFO L231 Difference]: Finished difference. Result has 382 places, 545 transitions, 4528 flow [2024-11-09 06:52:28,504 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=4119, PETRI_DIFFERENCE_MINUEND_PLACES=368, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=528, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=487, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4528, PETRI_PLACES=382, PETRI_TRANSITIONS=545} [2024-11-09 06:52:28,504 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 204 predicate places. [2024-11-09 06:52:28,504 INFO L471 AbstractCegarLoop]: Abstraction has has 382 places, 545 transitions, 4528 flow [2024-11-09 06:52:28,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:28,505 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:52:28,505 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:28,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 06:52:28,505 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:52:28,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:28,505 INFO L85 PathProgramCache]: Analyzing trace with hash -860810265, now seen corresponding path program 10 times [2024-11-09 06:52:28,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:52:28,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153088277] [2024-11-09 06:52:28,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:28,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:28,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:28,800 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:52:28,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:52:28,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153088277] [2024-11-09 06:52:28,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153088277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:28,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:28,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:52:28,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087752501] [2024-11-09 06:52:28,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:28,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:52:28,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:52:28,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:52:28,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:52:29,935 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-09 06:52:29,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 382 places, 545 transitions, 4528 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:29,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:52:29,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-09 06:52:29,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:52:34,967 INFO L124 PetriNetUnfolderBase]: 5502/19566 cut-off events. [2024-11-09 06:52:34,968 INFO L125 PetriNetUnfolderBase]: For 70591/71676 co-relation queries the response was YES. [2024-11-09 06:52:35,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68670 conditions, 19566 events. 5502/19566 cut-off events. For 70591/71676 co-relation queries the response was YES. Maximal size of possible extension queue 725. Compared 215180 event pairs, 533 based on Foata normal form. 169/19510 useless extension candidates. Maximal degree in co-relation 68331. Up to 3443 conditions per place. [2024-11-09 06:52:35,216 INFO L140 encePairwiseOnDemand]: 165/181 looper letters, 183 selfloop transitions, 53 changer transitions 0/614 dead transitions. [2024-11-09 06:52:35,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 614 transitions, 5830 flow [2024-11-09 06:52:35,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:52:35,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:52:35,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1461 transitions. [2024-11-09 06:52:35,219 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8968692449355433 [2024-11-09 06:52:35,219 INFO L175 Difference]: Start difference. First operand has 382 places, 545 transitions, 4528 flow. Second operand 9 states and 1461 transitions. [2024-11-09 06:52:35,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 614 transitions, 5830 flow [2024-11-09 06:52:35,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 388 places, 614 transitions, 5677 flow, removed 57 selfloop flow, removed 2 redundant places. [2024-11-09 06:52:35,633 INFO L231 Difference]: Finished difference. Result has 392 places, 559 transitions, 4807 flow [2024-11-09 06:52:35,633 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=4431, PETRI_DIFFERENCE_MINUEND_PLACES=380, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=545, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=496, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4807, PETRI_PLACES=392, PETRI_TRANSITIONS=559} [2024-11-09 06:52:35,634 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 214 predicate places. [2024-11-09 06:52:35,634 INFO L471 AbstractCegarLoop]: Abstraction has has 392 places, 559 transitions, 4807 flow [2024-11-09 06:52:35,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:35,634 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:52:35,634 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:35,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 06:52:35,635 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:52:35,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:35,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1924182501, now seen corresponding path program 11 times [2024-11-09 06:52:35,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:52:35,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090407004] [2024-11-09 06:52:35,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:35,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:35,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:36,192 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:52:36,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:52:36,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090407004] [2024-11-09 06:52:36,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090407004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:36,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:36,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:52:36,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280125932] [2024-11-09 06:52:36,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:36,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:52:36,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:52:36,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:52:36,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:52:36,894 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-09 06:52:36,895 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 559 transitions, 4807 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:36,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:52:36,895 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-09 06:52:36,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:52:41,844 INFO L124 PetriNetUnfolderBase]: 5530/19627 cut-off events. [2024-11-09 06:52:41,845 INFO L125 PetriNetUnfolderBase]: For 75691/76758 co-relation queries the response was YES. [2024-11-09 06:52:42,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69578 conditions, 19627 events. 5530/19627 cut-off events. For 75691/76758 co-relation queries the response was YES. Maximal size of possible extension queue 725. Compared 215676 event pairs, 531 based on Foata normal form. 177/19565 useless extension candidates. Maximal degree in co-relation 69235. Up to 3452 conditions per place. [2024-11-09 06:52:42,125 INFO L140 encePairwiseOnDemand]: 166/181 looper letters, 186 selfloop transitions, 57 changer transitions 0/621 dead transitions. [2024-11-09 06:52:42,125 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 621 transitions, 6033 flow [2024-11-09 06:52:42,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:52:42,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:52:42,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1462 transitions. [2024-11-09 06:52:42,130 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8974831184775937 [2024-11-09 06:52:42,130 INFO L175 Difference]: Start difference. First operand has 392 places, 559 transitions, 4807 flow. Second operand 9 states and 1462 transitions. [2024-11-09 06:52:42,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 621 transitions, 6033 flow [2024-11-09 06:52:42,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 621 transitions, 5873 flow, removed 39 selfloop flow, removed 4 redundant places. [2024-11-09 06:52:42,908 INFO L231 Difference]: Finished difference. Result has 401 places, 571 transitions, 5077 flow [2024-11-09 06:52:42,909 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=4671, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=559, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=505, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5077, PETRI_PLACES=401, PETRI_TRANSITIONS=571} [2024-11-09 06:52:42,909 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 223 predicate places. [2024-11-09 06:52:42,909 INFO L471 AbstractCegarLoop]: Abstraction has has 401 places, 571 transitions, 5077 flow [2024-11-09 06:52:42,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:42,913 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:52:42,913 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:42,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 06:52:42,915 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:52:42,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:42,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1754741371, now seen corresponding path program 12 times [2024-11-09 06:52:42,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:52:42,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110242220] [2024-11-09 06:52:42,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:42,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:42,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:43,267 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:52:43,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:52:43,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110242220] [2024-11-09 06:52:43,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110242220] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:43,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:43,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:52:43,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146296319] [2024-11-09 06:52:43,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:43,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:52:43,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:52:43,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:52:43,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:52:44,066 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-09 06:52:44,068 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 571 transitions, 5077 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:44,068 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:52:44,068 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-09 06:52:44,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand