./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/indexer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/indexer.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f24afaadf07ead7c7da85cf6020fd6a6a5b5585e439441b5111a2dea2e7cec4c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 16:44:54,589 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 16:44:54,678 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-11 16:44:54,683 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 16:44:54,686 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 16:44:54,712 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 16:44:54,714 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 16:44:54,714 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 16:44:54,715 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 16:44:54,716 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 16:44:54,718 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 16:44:54,718 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 16:44:54,718 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 16:44:54,719 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 16:44:54,719 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 16:44:54,720 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 16:44:54,720 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 16:44:54,720 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 16:44:54,721 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 16:44:54,721 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 16:44:54,721 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 16:44:54,722 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 16:44:54,723 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-11 16:44:54,723 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 16:44:54,723 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 16:44:54,723 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 16:44:54,724 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 16:44:54,724 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 16:44:54,724 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 16:44:54,724 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 16:44:54,725 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 16:44:54,725 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 16:44:54,725 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 16:44:54,726 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 16:44:54,726 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 16:44:54,726 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 16:44:54,726 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 16:44:54,727 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 16:44:54,727 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 16:44:54,727 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 16:44:54,727 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 16:44:54,728 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f24afaadf07ead7c7da85cf6020fd6a6a5b5585e439441b5111a2dea2e7cec4c [2024-10-11 16:44:54,955 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 16:44:54,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 16:44:54,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 16:44:54,987 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 16:44:54,988 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 16:44:54,990 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/indexer.i [2024-10-11 16:44:56,476 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 16:44:56,739 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 16:44:56,739 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/indexer.i [2024-10-11 16:44:56,761 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/715732543/eb666e7d24014e0591875cc4eec6721e/FLAG9c7d1d61a [2024-10-11 16:44:56,778 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/715732543/eb666e7d24014e0591875cc4eec6721e [2024-10-11 16:44:56,780 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 16:44:56,782 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 16:44:56,783 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 16:44:56,784 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 16:44:56,788 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 16:44:56,789 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:44:56" (1/1) ... [2024-10-11 16:44:56,790 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36b4a87b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:44:56, skipping insertion in model container [2024-10-11 16:44:56,790 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:44:56" (1/1) ... [2024-10-11 16:44:56,840 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 16:44:57,310 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 16:44:57,359 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 16:44:57,409 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 16:44:57,460 INFO L204 MainTranslator]: Completed translation [2024-10-11 16:44:57,460 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:44:57 WrapperNode [2024-10-11 16:44:57,460 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 16:44:57,461 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 16:44:57,461 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 16:44:57,461 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 16:44:57,467 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:44:57" (1/1) ... [2024-10-11 16:44:57,491 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:44:57" (1/1) ... [2024-10-11 16:44:57,520 INFO L138 Inliner]: procedures = 270, calls = 22, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 154 [2024-10-11 16:44:57,520 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 16:44:57,521 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 16:44:57,521 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 16:44:57,521 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 16:44:57,531 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:44:57" (1/1) ... [2024-10-11 16:44:57,531 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:44:57" (1/1) ... [2024-10-11 16:44:57,535 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:44:57" (1/1) ... [2024-10-11 16:44:57,535 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:44:57" (1/1) ... [2024-10-11 16:44:57,545 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:44:57" (1/1) ... [2024-10-11 16:44:57,548 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:44:57" (1/1) ... [2024-10-11 16:44:57,554 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:44:57" (1/1) ... [2024-10-11 16:44:57,555 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:44:57" (1/1) ... [2024-10-11 16:44:57,562 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 16:44:57,567 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 16:44:57,567 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 16:44:57,567 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 16:44:57,568 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:44:57" (1/1) ... [2024-10-11 16:44:57,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 16:44:57,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:44:57,608 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 16:44:57,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 16:44:57,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 16:44:57,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 16:44:57,665 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 16:44:57,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-11 16:44:57,665 INFO L130 BoogieDeclarations]: Found specification of procedure thread_routine [2024-10-11 16:44:57,666 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_routine [2024-10-11 16:44:57,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-11 16:44:57,666 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 16:44:57,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 16:44:57,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-11 16:44:57,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 16:44:57,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 16:44:57,671 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 16:44:57,819 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 16:44:57,821 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 16:44:58,111 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 16:44:58,111 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 16:44:58,137 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 16:44:58,137 INFO L314 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-11 16:44:58,138 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:44:58 BoogieIcfgContainer [2024-10-11 16:44:58,138 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 16:44:58,139 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 16:44:58,140 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 16:44:58,145 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 16:44:58,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 04:44:56" (1/3) ... [2024-10-11 16:44:58,146 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae49c1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:44:58, skipping insertion in model container [2024-10-11 16:44:58,146 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:44:57" (2/3) ... [2024-10-11 16:44:58,146 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae49c1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:44:58, skipping insertion in model container [2024-10-11 16:44:58,147 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:44:58" (3/3) ... [2024-10-11 16:44:58,148 INFO L112 eAbstractionObserver]: Analyzing ICFG indexer.i [2024-10-11 16:44:58,162 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 16:44:58,162 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-10-11 16:44:58,162 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 16:44:58,239 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-11 16:44:58,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 152 places, 164 transitions, 335 flow [2024-10-11 16:44:58,351 INFO L124 PetriNetUnfolderBase]: 19/209 cut-off events. [2024-10-11 16:44:58,352 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 16:44:58,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 209 events. 19/209 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 392 event pairs, 0 based on Foata normal form. 0/178 useless extension candidates. Maximal degree in co-relation 129. Up to 4 conditions per place. [2024-10-11 16:44:58,363 INFO L82 GeneralOperation]: Start removeDead. Operand has 152 places, 164 transitions, 335 flow [2024-10-11 16:44:58,368 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 152 places, 164 transitions, 335 flow [2024-10-11 16:44:58,377 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 16:44:58,383 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;@4104b481, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 16:44:58,383 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-10-11 16:44:58,416 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 16:44:58,417 INFO L124 PetriNetUnfolderBase]: 6/54 cut-off events. [2024-10-11 16:44:58,417 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 16:44:58,417 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:44:58,418 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] [2024-10-11 16:44:58,420 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread_routineErr0ASSERT_VIOLATIONDATA_RACE, thread_routineErr1ASSERT_VIOLATIONDATA_RACE, thread_routineErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-11 16:44:58,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:44:58,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1840561850, now seen corresponding path program 1 times [2024-10-11 16:44:58,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:44:58,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555909929] [2024-10-11 16:44:58,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:44:58,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:44:58,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:44:58,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:44:58,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:44:58,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555909929] [2024-10-11 16:44:58,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555909929] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:44:58,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:44:58,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 16:44:58,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379339851] [2024-10-11 16:44:58,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:44:58,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:44:58,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:44:58,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:44:58,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:44:58,884 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 164 [2024-10-11 16:44:58,889 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 164 transitions, 335 flow. Second operand has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:44:58,890 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:44:58,890 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 164 [2024-10-11 16:44:58,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:44:58,983 INFO L124 PetriNetUnfolderBase]: 11/260 cut-off events. [2024-10-11 16:44:58,983 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2024-10-11 16:44:58,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 299 conditions, 260 events. 11/260 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 688 event pairs, 2 based on Foata normal form. 15/252 useless extension candidates. Maximal degree in co-relation 194. Up to 22 conditions per place. [2024-10-11 16:44:58,988 INFO L140 encePairwiseOnDemand]: 143/164 looper letters, 11 selfloop transitions, 6 changer transitions 13/157 dead transitions. [2024-10-11 16:44:58,989 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 157 transitions, 367 flow [2024-10-11 16:44:58,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:44:58,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:44:59,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 450 transitions. [2024-10-11 16:44:59,008 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9146341463414634 [2024-10-11 16:44:59,010 INFO L175 Difference]: Start difference. First operand has 152 places, 164 transitions, 335 flow. Second operand 3 states and 450 transitions. [2024-10-11 16:44:59,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 157 transitions, 367 flow [2024-10-11 16:44:59,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 157 transitions, 367 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 16:44:59,021 INFO L231 Difference]: Finished difference. Result has 153 places, 142 transitions, 315 flow [2024-10-11 16:44:59,024 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=315, PETRI_PLACES=153, PETRI_TRANSITIONS=142} [2024-10-11 16:44:59,028 INFO L277 CegarLoopForPetriNet]: 152 programPoint places, 1 predicate places. [2024-10-11 16:44:59,028 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 142 transitions, 315 flow [2024-10-11 16:44:59,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:44:59,029 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:44:59,030 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] [2024-10-11 16:44:59,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 16:44:59,030 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread_routineErr0ASSERT_VIOLATIONDATA_RACE, thread_routineErr1ASSERT_VIOLATIONDATA_RACE, thread_routineErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-11 16:44:59,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:44:59,032 INFO L85 PathProgramCache]: Analyzing trace with hash -648419297, now seen corresponding path program 1 times [2024-10-11 16:44:59,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:44:59,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155306016] [2024-10-11 16:44:59,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:44:59,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:44:59,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:44:59,221 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:44:59,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:44:59,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155306016] [2024-10-11 16:44:59,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155306016] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:44:59,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857842802] [2024-10-11 16:44:59,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:44:59,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:44:59,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:44:59,225 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:44:59,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 16:44:59,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:44:59,314 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 16:44:59,322 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:44:59,381 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:44:59,382 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 16:44:59,422 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:44:59,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1857842802] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 16:44:59,423 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 16:44:59,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-11 16:44:59,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347175987] [2024-10-11 16:44:59,424 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 16:44:59,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 16:44:59,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:44:59,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 16:44:59,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-11 16:44:59,702 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 164 [2024-10-11 16:44:59,704 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 142 transitions, 315 flow. Second operand has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:44:59,704 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:44:59,704 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 164 [2024-10-11 16:44:59,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:44:59,862 INFO L124 PetriNetUnfolderBase]: 14/256 cut-off events. [2024-10-11 16:44:59,862 INFO L125 PetriNetUnfolderBase]: For 19/24 co-relation queries the response was YES. [2024-10-11 16:44:59,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 335 conditions, 256 events. 14/256 cut-off events. For 19/24 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 645 event pairs, 4 based on Foata normal form. 4/235 useless extension candidates. Maximal degree in co-relation 220. Up to 18 conditions per place. [2024-10-11 16:44:59,866 INFO L140 encePairwiseOnDemand]: 152/164 looper letters, 19 selfloop transitions, 15 changer transitions 0/156 dead transitions. [2024-10-11 16:44:59,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 156 transitions, 413 flow [2024-10-11 16:44:59,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 16:44:59,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-11 16:44:59,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1326 transitions. [2024-10-11 16:44:59,873 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8085365853658537 [2024-10-11 16:44:59,873 INFO L175 Difference]: Start difference. First operand has 153 places, 142 transitions, 315 flow. Second operand 10 states and 1326 transitions. [2024-10-11 16:44:59,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 156 transitions, 413 flow [2024-10-11 16:44:59,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 156 transitions, 407 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 16:44:59,879 INFO L231 Difference]: Finished difference. Result has 153 places, 150 transitions, 385 flow [2024-10-11 16:44:59,879 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=385, PETRI_PLACES=153, PETRI_TRANSITIONS=150} [2024-10-11 16:44:59,880 INFO L277 CegarLoopForPetriNet]: 152 programPoint places, 1 predicate places. [2024-10-11 16:44:59,880 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 150 transitions, 385 flow [2024-10-11 16:44:59,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:44:59,881 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:44:59,882 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] [2024-10-11 16:44:59,901 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-11 16:45:00,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:00,083 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread_routineErr0ASSERT_VIOLATIONDATA_RACE, thread_routineErr1ASSERT_VIOLATIONDATA_RACE, thread_routineErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-11 16:45:00,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:00,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1361136767, now seen corresponding path program 2 times [2024-10-11 16:45:00,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:00,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258457222] [2024-10-11 16:45:00,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:00,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:00,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:00,317 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:00,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:00,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258457222] [2024-10-11 16:45:00,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258457222] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:45:00,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139392388] [2024-10-11 16:45:00,319 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 16:45:00,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:00,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:45:00,322 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:45:00,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 16:45:00,400 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 16:45:00,400 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 16:45:00,401 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-11 16:45:00,405 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:45:00,491 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 [2024-10-11 16:45:00,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-10-11 16:45:00,561 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 16:45:00,562 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-10-11 16:45:00,638 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 16:45:00,639 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-10-11 16:45:00,689 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-11 16:45:00,689 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 16:45:00,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139392388] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:00,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 16:45:00,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 14 [2024-10-11 16:45:00,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239847213] [2024-10-11 16:45:00,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:00,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 16:45:00,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:00,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 16:45:00,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-10-11 16:45:00,913 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 164 [2024-10-11 16:45:00,915 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 150 transitions, 385 flow. Second operand has 7 states, 7 states have (on average 119.14285714285714) internal successors, (834), 7 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:00,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:00,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 164 [2024-10-11 16:45:00,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:01,295 INFO L124 PetriNetUnfolderBase]: 338/1523 cut-off events. [2024-10-11 16:45:01,296 INFO L125 PetriNetUnfolderBase]: For 21/24 co-relation queries the response was YES. [2024-10-11 16:45:01,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2210 conditions, 1523 events. 338/1523 cut-off events. For 21/24 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 10095 event pairs, 142 based on Foata normal form. 0/1374 useless extension candidates. Maximal degree in co-relation 2139. Up to 529 conditions per place. [2024-10-11 16:45:01,309 INFO L140 encePairwiseOnDemand]: 144/164 looper letters, 40 selfloop transitions, 55 changer transitions 0/211 dead transitions. [2024-10-11 16:45:01,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 211 transitions, 697 flow [2024-10-11 16:45:01,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 16:45:01,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 16:45:01,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 922 transitions. [2024-10-11 16:45:01,315 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8031358885017421 [2024-10-11 16:45:01,315 INFO L175 Difference]: Start difference. First operand has 153 places, 150 transitions, 385 flow. Second operand 7 states and 922 transitions. [2024-10-11 16:45:01,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 211 transitions, 697 flow [2024-10-11 16:45:01,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 211 transitions, 687 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-11 16:45:01,323 INFO L231 Difference]: Finished difference. Result has 163 places, 203 transitions, 736 flow [2024-10-11 16:45:01,325 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=736, PETRI_PLACES=163, PETRI_TRANSITIONS=203} [2024-10-11 16:45:01,326 INFO L277 CegarLoopForPetriNet]: 152 programPoint places, 11 predicate places. [2024-10-11 16:45:01,326 INFO L471 AbstractCegarLoop]: Abstraction has has 163 places, 203 transitions, 736 flow [2024-10-11 16:45:01,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 119.14285714285714) internal successors, (834), 7 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:01,327 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:01,328 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] [2024-10-11 16:45:01,344 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-11 16:45:01,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:01,532 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread_routineErr0ASSERT_VIOLATIONDATA_RACE, thread_routineErr1ASSERT_VIOLATIONDATA_RACE, thread_routineErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-11 16:45:01,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:01,532 INFO L85 PathProgramCache]: Analyzing trace with hash -997427505, now seen corresponding path program 1 times [2024-10-11 16:45:01,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:01,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253905062] [2024-10-11 16:45:01,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:01,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:01,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:01,761 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:01,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:01,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253905062] [2024-10-11 16:45:01,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253905062] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:45:01,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55557611] [2024-10-11 16:45:01,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:01,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:01,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:45:01,764 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:45:01,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 16:45:01,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:01,850 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 16:45:01,852 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:45:01,910 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:01,910 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 16:45:02,005 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:02,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55557611] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 16:45:02,005 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 16:45:02,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-11 16:45:02,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462306181] [2024-10-11 16:45:02,006 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 16:45:02,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-11 16:45:02,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:02,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-11 16:45:02,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-11 16:45:02,349 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 164 [2024-10-11 16:45:02,352 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 203 transitions, 736 flow. Second operand has 18 states, 18 states have (on average 131.0) internal successors, (2358), 18 states have internal predecessors, (2358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:02,352 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:02,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 164 [2024-10-11 16:45:02,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:02,700 INFO L124 PetriNetUnfolderBase]: 159/848 cut-off events. [2024-10-11 16:45:02,700 INFO L125 PetriNetUnfolderBase]: For 118/123 co-relation queries the response was YES. [2024-10-11 16:45:02,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1479 conditions, 848 events. 159/848 cut-off events. For 118/123 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 4375 event pairs, 16 based on Foata normal form. 6/786 useless extension candidates. Maximal degree in co-relation 1329. Up to 156 conditions per place. [2024-10-11 16:45:02,705 INFO L140 encePairwiseOnDemand]: 152/164 looper letters, 23 selfloop transitions, 27 changer transitions 0/225 dead transitions. [2024-10-11 16:45:02,705 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 225 transitions, 932 flow [2024-10-11 16:45:02,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-11 16:45:02,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-10-11 16:45:02,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2892 transitions. [2024-10-11 16:45:02,711 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8015521064301552 [2024-10-11 16:45:02,711 INFO L175 Difference]: Start difference. First operand has 163 places, 203 transitions, 736 flow. Second operand 22 states and 2892 transitions. [2024-10-11 16:45:02,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 225 transitions, 932 flow [2024-10-11 16:45:02,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 225 transitions, 931 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 16:45:02,719 INFO L231 Difference]: Finished difference. Result has 188 places, 216 transitions, 883 flow [2024-10-11 16:45:02,720 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=735, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=883, PETRI_PLACES=188, PETRI_TRANSITIONS=216} [2024-10-11 16:45:02,721 INFO L277 CegarLoopForPetriNet]: 152 programPoint places, 36 predicate places. [2024-10-11 16:45:02,722 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 216 transitions, 883 flow [2024-10-11 16:45:02,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 131.0) internal successors, (2358), 18 states have internal predecessors, (2358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:02,723 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:02,723 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] [2024-10-11 16:45:02,741 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 16:45:02,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:02,924 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread_routineErr0ASSERT_VIOLATIONDATA_RACE, thread_routineErr1ASSERT_VIOLATIONDATA_RACE, thread_routineErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-11 16:45:02,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:02,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1289656433, now seen corresponding path program 2 times [2024-10-11 16:45:02,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:02,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517705747] [2024-10-11 16:45:02,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:02,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:02,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:03,276 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:03,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:03,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517705747] [2024-10-11 16:45:03,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517705747] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:45:03,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668284887] [2024-10-11 16:45:03,279 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 16:45:03,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:03,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:45:03,283 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:45:03,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 16:45:03,373 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 16:45:03,374 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 16:45:03,375 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-11 16:45:03,378 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:45:03,518 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 [2024-10-11 16:45:03,547 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-10-11 16:45:03,584 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 16:45:03,584 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-10-11 16:45:03,641 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 16:45:03,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-10-11 16:45:03,698 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-11 16:45:03,699 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 16:45:03,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [668284887] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:03,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 16:45:03,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 23 [2024-10-11 16:45:03,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123112915] [2024-10-11 16:45:03,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:03,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 16:45:03,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:03,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 16:45:03,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2024-10-11 16:45:03,971 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 164 [2024-10-11 16:45:03,973 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 216 transitions, 883 flow. Second operand has 8 states, 8 states have (on average 107.125) internal successors, (857), 8 states have internal predecessors, (857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:03,973 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:03,973 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 164 [2024-10-11 16:45:03,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:04,287 INFO L124 PetriNetUnfolderBase]: 406/1665 cut-off events. [2024-10-11 16:45:04,287 INFO L125 PetriNetUnfolderBase]: For 572/576 co-relation queries the response was YES. [2024-10-11 16:45:04,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3382 conditions, 1665 events. 406/1665 cut-off events. For 572/576 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 11071 event pairs, 84 based on Foata normal form. 0/1546 useless extension candidates. Maximal degree in co-relation 3212. Up to 525 conditions per place. [2024-10-11 16:45:04,297 INFO L140 encePairwiseOnDemand]: 150/164 looper letters, 118 selfloop transitions, 13 changer transitions 1/247 dead transitions. [2024-10-11 16:45:04,298 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 247 transitions, 1251 flow [2024-10-11 16:45:04,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 16:45:04,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 16:45:04,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 917 transitions. [2024-10-11 16:45:04,301 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6989329268292683 [2024-10-11 16:45:04,301 INFO L175 Difference]: Start difference. First operand has 188 places, 216 transitions, 883 flow. Second operand 8 states and 917 transitions. [2024-10-11 16:45:04,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 247 transitions, 1251 flow [2024-10-11 16:45:04,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 247 transitions, 1223 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-10-11 16:45:04,310 INFO L231 Difference]: Finished difference. Result has 194 places, 222 transitions, 927 flow [2024-10-11 16:45:04,310 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=855, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=927, PETRI_PLACES=194, PETRI_TRANSITIONS=222} [2024-10-11 16:45:04,311 INFO L277 CegarLoopForPetriNet]: 152 programPoint places, 42 predicate places. [2024-10-11 16:45:04,311 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 222 transitions, 927 flow [2024-10-11 16:45:04,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 107.125) internal successors, (857), 8 states have internal predecessors, (857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:04,312 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:04,313 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] [2024-10-11 16:45:04,329 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-11 16:45:04,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:04,517 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread_routineErr0ASSERT_VIOLATIONDATA_RACE === [thread_routineErr0ASSERT_VIOLATIONDATA_RACE, thread_routineErr1ASSERT_VIOLATIONDATA_RACE, thread_routineErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-11 16:45:04,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:04,517 INFO L85 PathProgramCache]: Analyzing trace with hash -750038778, now seen corresponding path program 1 times [2024-10-11 16:45:04,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:04,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320780907] [2024-10-11 16:45:04,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:04,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:04,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:04,842 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:04,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:04,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320780907] [2024-10-11 16:45:04,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320780907] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:45:04,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866507946] [2024-10-11 16:45:04,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:04,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:04,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:45:04,846 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:45:04,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 16:45:04,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:04,951 INFO L255 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 16:45:04,953 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:45:05,039 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:05,039 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 16:45:05,336 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:05,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1866507946] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 16:45:05,337 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 16:45:05,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-10-11 16:45:05,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279496415] [2024-10-11 16:45:05,338 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 16:45:05,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-11 16:45:05,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:05,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-11 16:45:05,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-10-11 16:45:05,885 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 164 [2024-10-11 16:45:05,890 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 222 transitions, 927 flow. Second operand has 34 states, 34 states have (on average 131.02941176470588) internal successors, (4455), 34 states have internal predecessors, (4455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:05,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:05,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 164 [2024-10-11 16:45:05,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:06,554 INFO L124 PetriNetUnfolderBase]: 165/985 cut-off events. [2024-10-11 16:45:06,555 INFO L125 PetriNetUnfolderBase]: For 452/458 co-relation queries the response was YES. [2024-10-11 16:45:06,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1854 conditions, 985 events. 165/985 cut-off events. For 452/458 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 5240 event pairs, 17 based on Foata normal form. 10/922 useless extension candidates. Maximal degree in co-relation 1505. Up to 172 conditions per place. [2024-10-11 16:45:06,563 INFO L140 encePairwiseOnDemand]: 152/164 looper letters, 31 selfloop transitions, 51 changer transitions 0/263 dead transitions. [2024-10-11 16:45:06,563 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 263 transitions, 1371 flow [2024-10-11 16:45:06,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-10-11 16:45:06,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2024-10-11 16:45:06,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 6024 transitions. [2024-10-11 16:45:06,576 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7985153764581124 [2024-10-11 16:45:06,576 INFO L175 Difference]: Start difference. First operand has 194 places, 222 transitions, 927 flow. Second operand 46 states and 6024 transitions. [2024-10-11 16:45:06,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 263 transitions, 1371 flow [2024-10-11 16:45:06,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 263 transitions, 1361 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-11 16:45:06,586 INFO L231 Difference]: Finished difference. Result has 246 places, 247 transitions, 1237 flow [2024-10-11 16:45:06,586 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=917, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=1237, PETRI_PLACES=246, PETRI_TRANSITIONS=247} [2024-10-11 16:45:06,588 INFO L277 CegarLoopForPetriNet]: 152 programPoint places, 94 predicate places. [2024-10-11 16:45:06,588 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 247 transitions, 1237 flow [2024-10-11 16:45:06,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 131.02941176470588) internal successors, (4455), 34 states have internal predecessors, (4455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:06,591 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:06,591 INFO L204 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:06,608 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-11 16:45:06,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:06,792 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread_routineErr0ASSERT_VIOLATIONDATA_RACE === [thread_routineErr0ASSERT_VIOLATIONDATA_RACE, thread_routineErr1ASSERT_VIOLATIONDATA_RACE, thread_routineErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-11 16:45:06,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:06,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1829809530, now seen corresponding path program 2 times [2024-10-11 16:45:06,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:06,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229899114] [2024-10-11 16:45:06,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:06,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:06,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:07,765 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:07,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:07,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229899114] [2024-10-11 16:45:07,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229899114] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:45:07,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848063006] [2024-10-11 16:45:07,769 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 16:45:07,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:07,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:45:07,771 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:45:07,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 16:45:07,881 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 16:45:07,881 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 16:45:07,883 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-11 16:45:07,887 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:45:07,902 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 [2024-10-11 16:45:07,929 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 [2024-10-11 16:45:07,965 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 16:45:07,966 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 [2024-10-11 16:45:08,009 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 16:45:08,009 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 [2024-10-11 16:45:08,051 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2024-10-11 16:45:08,051 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 16:45:08,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [848063006] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:08,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 16:45:08,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [33] total 37 [2024-10-11 16:45:08,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534344080] [2024-10-11 16:45:08,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:08,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:08,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:08,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:08,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=1030, Unknown=0, NotChecked=0, Total=1332 [2024-10-11 16:45:08,193 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 164 [2024-10-11 16:45:08,194 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 247 transitions, 1237 flow. Second operand has 6 states, 6 states have (on average 133.5) internal successors, (801), 6 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:08,194 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:08,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 164 [2024-10-11 16:45:08,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:08,542 INFO L124 PetriNetUnfolderBase]: 354/1899 cut-off events. [2024-10-11 16:45:08,542 INFO L125 PetriNetUnfolderBase]: For 672/688 co-relation queries the response was YES. [2024-10-11 16:45:08,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3637 conditions, 1899 events. 354/1899 cut-off events. For 672/688 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 12744 event pairs, 36 based on Foata normal form. 1/1759 useless extension candidates. Maximal degree in co-relation 3274. Up to 448 conditions per place. [2024-10-11 16:45:08,556 INFO L140 encePairwiseOnDemand]: 149/164 looper letters, 60 selfloop transitions, 50 changer transitions 0/294 dead transitions. [2024-10-11 16:45:08,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 294 transitions, 1662 flow [2024-10-11 16:45:08,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:08,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:08,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 850 transitions. [2024-10-11 16:45:08,560 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8638211382113821 [2024-10-11 16:45:08,561 INFO L175 Difference]: Start difference. First operand has 246 places, 247 transitions, 1237 flow. Second operand 6 states and 850 transitions. [2024-10-11 16:45:08,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 294 transitions, 1662 flow [2024-10-11 16:45:08,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 294 transitions, 1602 flow, removed 10 selfloop flow, removed 18 redundant places. [2024-10-11 16:45:08,573 INFO L231 Difference]: Finished difference. Result has 238 places, 291 transitions, 1615 flow [2024-10-11 16:45:08,574 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=1177, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1615, PETRI_PLACES=238, PETRI_TRANSITIONS=291} [2024-10-11 16:45:08,575 INFO L277 CegarLoopForPetriNet]: 152 programPoint places, 86 predicate places. [2024-10-11 16:45:08,575 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 291 transitions, 1615 flow [2024-10-11 16:45:08,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.5) internal successors, (801), 6 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:08,575 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:08,576 INFO L204 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:08,592 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-11 16:45:08,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-10-11 16:45:08,781 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread_routineErr0ASSERT_VIOLATIONDATA_RACE, thread_routineErr1ASSERT_VIOLATIONDATA_RACE, thread_routineErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-11 16:45:08,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:08,781 INFO L85 PathProgramCache]: Analyzing trace with hash -948909800, now seen corresponding path program 1 times [2024-10-11 16:45:08,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:08,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49739272] [2024-10-11 16:45:08,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:08,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:08,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:08,907 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2024-10-11 16:45:08,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:08,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49739272] [2024-10-11 16:45:08,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49739272] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:45:08,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875216153] [2024-10-11 16:45:08,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:08,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:08,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:45:08,909 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:45:08,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-11 16:45:09,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:09,040 INFO L255 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-11 16:45:09,044 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:45:09,597 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 16:45:09,597 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 16:45:10,562 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 16:45:10,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1875216153] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 16:45:10,562 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 16:45:10,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 33, 33] total 66 [2024-10-11 16:45:10,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266894543] [2024-10-11 16:45:10,563 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 16:45:10,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2024-10-11 16:45:10,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:10,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2024-10-11 16:45:10,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1092, Invalid=3198, Unknown=0, NotChecked=0, Total=4290 [2024-10-11 16:45:11,571 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 164 [2024-10-11 16:45:11,577 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 291 transitions, 1615 flow. Second operand has 66 states, 66 states have (on average 129.24242424242425) internal successors, (8530), 66 states have internal predecessors, (8530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:11,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:11,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 164 [2024-10-11 16:45:11,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:13,559 INFO L124 PetriNetUnfolderBase]: 293/1967 cut-off events. [2024-10-11 16:45:13,559 INFO L125 PetriNetUnfolderBase]: For 2824/2837 co-relation queries the response was YES. [2024-10-11 16:45:13,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3998 conditions, 1967 events. 293/1967 cut-off events. For 2824/2837 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 13198 event pairs, 11 based on Foata normal form. 22/1860 useless extension candidates. Maximal degree in co-relation 3193. Up to 302 conditions per place. [2024-10-11 16:45:13,572 INFO L140 encePairwiseOnDemand]: 153/164 looper letters, 47 selfloop transitions, 97 changer transitions 0/357 dead transitions. [2024-10-11 16:45:13,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 357 transitions, 2603 flow [2024-10-11 16:45:13,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2024-10-11 16:45:13,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2024-10-11 16:45:13,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 12226 transitions. [2024-10-11 16:45:13,586 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7847240051347882 [2024-10-11 16:45:13,586 INFO L175 Difference]: Start difference. First operand has 238 places, 291 transitions, 1615 flow. Second operand 95 states and 12226 transitions. [2024-10-11 16:45:13,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 357 transitions, 2603 flow [2024-10-11 16:45:13,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 357 transitions, 2561 flow, removed 21 selfloop flow, removed 0 redundant places. [2024-10-11 16:45:13,608 INFO L231 Difference]: Finished difference. Result has 335 places, 324 transitions, 2204 flow [2024-10-11 16:45:13,609 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=1505, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=95, PETRI_FLOW=2204, PETRI_PLACES=335, PETRI_TRANSITIONS=324} [2024-10-11 16:45:13,611 INFO L277 CegarLoopForPetriNet]: 152 programPoint places, 183 predicate places. [2024-10-11 16:45:13,611 INFO L471 AbstractCegarLoop]: Abstraction has has 335 places, 324 transitions, 2204 flow [2024-10-11 16:45:13,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 129.24242424242425) internal successors, (8530), 66 states have internal predecessors, (8530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:13,615 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:13,615 INFO L204 CegarLoopForPetriNet]: trace histogram [31, 31, 31, 31, 31, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:13,633 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-11 16:45:13,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:13,816 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread_routineErr0ASSERT_VIOLATIONDATA_RACE, thread_routineErr1ASSERT_VIOLATIONDATA_RACE, thread_routineErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-11 16:45:13,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:13,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1641056046, now seen corresponding path program 1 times [2024-10-11 16:45:13,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:13,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635890163] [2024-10-11 16:45:13,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:13,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:13,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:16,197 INFO L134 CoverageAnalysis]: Checked inductivity of 2364 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 16:45:16,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:16,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635890163] [2024-10-11 16:45:16,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635890163] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:45:16,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636132114] [2024-10-11 16:45:16,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:16,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:16,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:45:16,198 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:45:16,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-11 16:45:16,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:16,375 INFO L255 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-10-11 16:45:16,379 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:45:16,596 INFO L134 CoverageAnalysis]: Checked inductivity of 2364 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 16:45:16,596 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 16:45:19,485 INFO L134 CoverageAnalysis]: Checked inductivity of 2364 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 16:45:19,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [636132114] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 16:45:19,485 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 16:45:19,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2024-10-11 16:45:19,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301551266] [2024-10-11 16:45:19,486 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 16:45:19,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2024-10-11 16:45:19,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:19,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2024-10-11 16:45:19,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2024-10-11 16:45:21,334 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 164 [2024-10-11 16:45:21,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 324 transitions, 2204 flow. Second operand has 130 states, 130 states have (on average 131.01538461538462) internal successors, (17032), 130 states have internal predecessors, (17032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:21,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:21,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 164 [2024-10-11 16:45:21,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:27,593 INFO L124 PetriNetUnfolderBase]: 285/2115 cut-off events. [2024-10-11 16:45:27,594 INFO L125 PetriNetUnfolderBase]: For 17613/17626 co-relation queries the response was YES. [2024-10-11 16:45:27,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5111 conditions, 2115 events. 285/2115 cut-off events. For 17613/17626 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 13087 event pairs, 11 based on Foata normal form. 33/2023 useless extension candidates. Maximal degree in co-relation 3152. Up to 302 conditions per place. [2024-10-11 16:45:27,612 INFO L140 encePairwiseOnDemand]: 155/164 looper letters, 76 selfloop transitions, 192 changer transitions 0/483 dead transitions. [2024-10-11 16:45:27,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 523 places, 483 transitions, 4768 flow [2024-10-11 16:45:27,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2024-10-11 16:45:27,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2024-10-11 16:45:27,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 24681 transitions. [2024-10-11 16:45:27,643 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7962640340689121 [2024-10-11 16:45:27,644 INFO L175 Difference]: Start difference. First operand has 335 places, 324 transitions, 2204 flow. Second operand 189 states and 24681 transitions. [2024-10-11 16:45:27,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 523 places, 483 transitions, 4768 flow [2024-10-11 16:45:27,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 479 places, 483 transitions, 4577 flow, removed 50 selfloop flow, removed 44 redundant places. [2024-10-11 16:45:27,689 INFO L231 Difference]: Finished difference. Result has 512 places, 421 transitions, 3644 flow [2024-10-11 16:45:27,690 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=2077, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=189, PETRI_FLOW=3644, PETRI_PLACES=512, PETRI_TRANSITIONS=421} [2024-10-11 16:45:27,690 INFO L277 CegarLoopForPetriNet]: 152 programPoint places, 360 predicate places. [2024-10-11 16:45:27,690 INFO L471 AbstractCegarLoop]: Abstraction has has 512 places, 421 transitions, 3644 flow [2024-10-11 16:45:27,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 131.01538461538462) internal successors, (17032), 130 states have internal predecessors, (17032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:27,697 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:27,698 INFO L204 CegarLoopForPetriNet]: trace histogram [63, 63, 63, 63, 63, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:27,716 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-11 16:45:27,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:27,898 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread_routineErr0ASSERT_VIOLATIONDATA_RACE, thread_routineErr1ASSERT_VIOLATIONDATA_RACE, thread_routineErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-11 16:45:27,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:27,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1222249774, now seen corresponding path program 2 times [2024-10-11 16:45:27,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:27,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771003519] [2024-10-11 16:45:27,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:27,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:28,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:35,572 INFO L134 CoverageAnalysis]: Checked inductivity of 9836 backedges. 0 proven. 9828 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 16:45:35,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:35,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771003519] [2024-10-11 16:45:35,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771003519] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:45:35,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003933033] [2024-10-11 16:45:35,573 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 16:45:35,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:35,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:45:35,574 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:45:35,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-11 16:45:35,787 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 16:45:35,787 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 16:45:35,791 INFO L255 TraceCheckSpWp]: Trace formula consists of 813 conjuncts, 128 conjuncts are in the unsatisfiable core [2024-10-11 16:45:35,795 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:45:36,169 INFO L134 CoverageAnalysis]: Checked inductivity of 9836 backedges. 0 proven. 9828 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 16:45:36,169 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 16:45:47,153 INFO L134 CoverageAnalysis]: Checked inductivity of 9836 backedges. 0 proven. 9828 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 16:45:47,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2003933033] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 16:45:47,153 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 16:45:47,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [129, 129, 129] total 258 [2024-10-11 16:45:47,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661116169] [2024-10-11 16:45:47,154 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 16:45:47,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 258 states [2024-10-11 16:45:47,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:47,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 258 interpolants. [2024-10-11 16:45:47,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16770, Invalid=49536, Unknown=0, NotChecked=0, Total=66306 [2024-10-11 16:45:53,890 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 164 [2024-10-11 16:45:53,908 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 512 places, 421 transitions, 3644 flow. Second operand has 258 states, 258 states have (on average 131.0077519379845) internal successors, (33800), 258 states have internal predecessors, (33800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:53,908 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:53,908 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 164 [2024-10-11 16:45:53,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:46:18,212 INFO L124 PetriNetUnfolderBase]: 285/2435 cut-off events. [2024-10-11 16:46:18,212 INFO L125 PetriNetUnfolderBase]: For 133415/133428 co-relation queries the response was YES. [2024-10-11 16:46:18,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7650 conditions, 2435 events. 285/2435 cut-off events. For 133415/133428 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 13088 event pairs, 11 based on Foata normal form. 65/2375 useless extension candidates. Maximal degree in co-relation 4924. Up to 302 conditions per place. [2024-10-11 16:46:18,233 INFO L140 encePairwiseOnDemand]: 155/164 looper letters, 140 selfloop transitions, 384 changer transitions 0/739 dead transitions. [2024-10-11 16:46:18,233 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 892 places, 739 transitions, 9644 flow [2024-10-11 16:46:18,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 381 states. [2024-10-11 16:46:18,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2024-10-11 16:46:18,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 49737 transitions. [2024-10-11 16:46:18,272 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7959957749183791 [2024-10-11 16:46:18,273 INFO L175 Difference]: Start difference. First operand has 512 places, 421 transitions, 3644 flow. Second operand 381 states and 49737 transitions. [2024-10-11 16:46:18,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 892 places, 739 transitions, 9644 flow [2024-10-11 16:46:18,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 802 places, 739 transitions, 9395 flow, removed 33 selfloop flow, removed 90 redundant places. [2024-10-11 16:46:18,432 INFO L231 Difference]: Finished difference. Result has 867 places, 614 transitions, 7014 flow [2024-10-11 16:46:18,433 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=3395, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=193, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=381, PETRI_FLOW=7014, PETRI_PLACES=867, PETRI_TRANSITIONS=614} [2024-10-11 16:46:18,434 INFO L277 CegarLoopForPetriNet]: 152 programPoint places, 715 predicate places. [2024-10-11 16:46:18,434 INFO L471 AbstractCegarLoop]: Abstraction has has 867 places, 614 transitions, 7014 flow [2024-10-11 16:46:18,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 258 states, 258 states have (on average 131.0077519379845) internal successors, (33800), 258 states have internal predecessors, (33800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:46:18,442 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:46:18,442 INFO L204 CegarLoopForPetriNet]: trace histogram [127, 127, 127, 127, 127, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:46:18,462 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-11 16:46:18,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:46:18,643 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread_routineErr0ASSERT_VIOLATIONDATA_RACE, thread_routineErr1ASSERT_VIOLATIONDATA_RACE, thread_routineErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-11 16:46:18,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:46:18,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1257957074, now seen corresponding path program 3 times [2024-10-11 16:46:18,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:46:18,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158769707] [2024-10-11 16:46:18,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:46:18,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:46:18,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat