./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 a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/indexer.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f24afaadf07ead7c7da85cf6020fd6a6a5b5585e439441b5111a2dea2e7cec4c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 09:27:01,924 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 09:27:01,966 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-13 09:27:01,969 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 09:27:01,970 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 09:27:01,984 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 09:27:01,985 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 09:27:01,985 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 09:27:01,986 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 09:27:01,986 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 09:27:01,986 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 09:27:01,987 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 09:27:01,987 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 09:27:01,987 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 09:27:01,988 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 09:27:01,988 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 09:27:01,988 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 09:27:01,988 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 09:27:01,989 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 09:27:01,989 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 09:27:01,989 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 09:27:01,990 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 09:27:01,990 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-13 09:27:01,990 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 09:27:01,991 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 09:27:01,991 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 09:27:01,991 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 09:27:01,991 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 09:27:01,991 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 09:27:01,992 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 09:27:01,992 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 09:27:01,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:27:01,992 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 09:27:01,993 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 09:27:01,993 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 09:27:01,993 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 09:27:01,993 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 09:27:01,993 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 09:27:01,994 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 09:27:01,994 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 09:27:01,994 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 09:27:01,994 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f24afaadf07ead7c7da85cf6020fd6a6a5b5585e439441b5111a2dea2e7cec4c [2024-10-13 09:27:02,205 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 09:27:02,233 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 09:27:02,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 09:27:02,240 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 09:27:02,244 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 09:27:02,246 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/indexer.i [2024-10-13 09:27:03,589 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 09:27:03,825 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 09:27:03,826 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/indexer.i [2024-10-13 09:27:03,845 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef0f643c9/bcb3718b6a664517beefcb24e03e1654/FLAG200e901fd [2024-10-13 09:27:03,857 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef0f643c9/bcb3718b6a664517beefcb24e03e1654 [2024-10-13 09:27:03,859 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 09:27:03,860 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 09:27:03,861 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 09:27:03,861 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 09:27:03,866 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 09:27:03,866 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:27:03" (1/1) ... [2024-10-13 09:27:03,867 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49455ec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:27:03, skipping insertion in model container [2024-10-13 09:27:03,867 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:27:03" (1/1) ... [2024-10-13 09:27:03,913 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 09:27:04,261 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:27:04,341 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 09:27:04,422 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:27:04,467 INFO L204 MainTranslator]: Completed translation [2024-10-13 09:27:04,467 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:27:04 WrapperNode [2024-10-13 09:27:04,467 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 09:27:04,468 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 09:27:04,469 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 09:27:04,469 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 09:27:04,474 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:27:04" (1/1) ... [2024-10-13 09:27:04,495 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:27:04" (1/1) ... [2024-10-13 09:27:04,517 INFO L138 Inliner]: procedures = 270, calls = 22, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 154 [2024-10-13 09:27:04,518 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 09:27:04,518 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 09:27:04,519 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 09:27:04,519 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 09:27:04,526 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:27:04" (1/1) ... [2024-10-13 09:27:04,527 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:27:04" (1/1) ... [2024-10-13 09:27:04,531 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:27:04" (1/1) ... [2024-10-13 09:27:04,531 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:27:04" (1/1) ... [2024-10-13 09:27:04,546 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:27:04" (1/1) ... [2024-10-13 09:27:04,554 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:27:04" (1/1) ... [2024-10-13 09:27:04,555 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:27:04" (1/1) ... [2024-10-13 09:27:04,557 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:27:04" (1/1) ... [2024-10-13 09:27:04,560 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 09:27:04,561 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 09:27:04,561 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 09:27:04,561 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 09:27:04,562 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:27:04" (1/1) ... [2024-10-13 09:27:04,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:27:04,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:27:04,624 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 09:27:04,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 09:27:04,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-13 09:27:04,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 09:27:04,712 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-13 09:27:04,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-13 09:27:04,712 INFO L130 BoogieDeclarations]: Found specification of procedure thread_routine [2024-10-13 09:27:04,712 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_routine [2024-10-13 09:27:04,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-13 09:27:04,712 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-13 09:27:04,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 09:27:04,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-13 09:27:04,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 09:27:04,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 09:27:04,714 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 09:27:04,966 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 09:27:04,973 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 09:27:05,421 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 09:27:05,421 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 09:27:05,442 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 09:27:05,442 INFO L314 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-13 09:27:05,443 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:27:05 BoogieIcfgContainer [2024-10-13 09:27:05,443 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 09:27:05,444 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 09:27:05,445 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 09:27:05,447 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 09:27:05,447 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:27:03" (1/3) ... [2024-10-13 09:27:05,448 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30343e8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:27:05, skipping insertion in model container [2024-10-13 09:27:05,448 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:27:04" (2/3) ... [2024-10-13 09:27:05,448 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30343e8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:27:05, skipping insertion in model container [2024-10-13 09:27:05,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:27:05" (3/3) ... [2024-10-13 09:27:05,450 INFO L112 eAbstractionObserver]: Analyzing ICFG indexer.i [2024-10-13 09:27:05,463 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 09:27:05,464 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-10-13 09:27:05,464 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 09:27:05,523 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-13 09:27:05,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 152 places, 164 transitions, 335 flow [2024-10-13 09:27:05,632 INFO L124 PetriNetUnfolderBase]: 19/209 cut-off events. [2024-10-13 09:27:05,632 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 09:27:05,639 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. [2024-10-13 09:27:05,639 INFO L82 GeneralOperation]: Start removeDead. Operand has 152 places, 164 transitions, 335 flow [2024-10-13 09:27:05,645 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 152 places, 164 transitions, 335 flow [2024-10-13 09:27:05,658 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:27:05,665 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;@22bc53bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:27:05,665 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-10-13 09:27:05,680 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:27:05,681 INFO L124 PetriNetUnfolderBase]: 6/54 cut-off events. [2024-10-13 09:27:05,681 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:27:05,682 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:27:05,682 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] [2024-10-13 09:27:05,683 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)] === [2024-10-13 09:27:05,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:27:05,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1840561850, now seen corresponding path program 1 times [2024-10-13 09:27:05,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:27:05,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102993670] [2024-10-13 09:27:05,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:27:05,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:27:05,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:27:06,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:27:06,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:27:06,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102993670] [2024-10-13 09:27:06,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102993670] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:27:06,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:27:06,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 09:27:06,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703390643] [2024-10-13 09:27:06,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:27:06,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:27:06,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:27:06,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:27:06,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:27:06,163 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 164 [2024-10-13 09:27:06,166 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) [2024-10-13 09:27:06,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:27:06,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 164 [2024-10-13 09:27:06,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:27:06,211 INFO L124 PetriNetUnfolderBase]: 11/260 cut-off events. [2024-10-13 09:27:06,212 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2024-10-13 09:27:06,213 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. [2024-10-13 09:27:06,215 INFO L140 encePairwiseOnDemand]: 143/164 looper letters, 11 selfloop transitions, 6 changer transitions 13/157 dead transitions. [2024-10-13 09:27:06,215 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 157 transitions, 367 flow [2024-10-13 09:27:06,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:27:06,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:27:06,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 450 transitions. [2024-10-13 09:27:06,228 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9146341463414634 [2024-10-13 09:27:06,229 INFO L175 Difference]: Start difference. First operand has 152 places, 164 transitions, 335 flow. Second operand 3 states and 450 transitions. [2024-10-13 09:27:06,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 157 transitions, 367 flow [2024-10-13 09:27:06,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 157 transitions, 367 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 09:27:06,235 INFO L231 Difference]: Finished difference. Result has 153 places, 142 transitions, 315 flow [2024-10-13 09:27:06,237 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} [2024-10-13 09:27:06,239 INFO L277 CegarLoopForPetriNet]: 152 programPoint places, 1 predicate places. [2024-10-13 09:27:06,239 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 142 transitions, 315 flow [2024-10-13 09:27:06,240 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) [2024-10-13 09:27:06,240 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:27:06,240 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] [2024-10-13 09:27:06,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 09:27:06,240 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)] === [2024-10-13 09:27:06,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:27:06,241 INFO L85 PathProgramCache]: Analyzing trace with hash -648419297, now seen corresponding path program 1 times [2024-10-13 09:27:06,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:27:06,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288642710] [2024-10-13 09:27:06,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:27:06,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:27:06,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:27:06,353 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:27:06,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:27:06,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288642710] [2024-10-13 09:27:06,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288642710] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:27:06,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232344233] [2024-10-13 09:27:06,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:27:06,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:27:06,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:27:06,359 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:27:06,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 09:27:06,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:27:06,434 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 09:27:06,440 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:27:06,486 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:27:06,487 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:27:06,519 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:27:06,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232344233] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:27:06,519 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:27:06,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-13 09:27:06,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72259132] [2024-10-13 09:27:06,520 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:27:06,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 09:27:06,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:27:06,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 09:27:06,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-13 09:27:06,672 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 164 [2024-10-13 09:27:06,674 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) [2024-10-13 09:27:06,674 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:27:06,674 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 164 [2024-10-13 09:27:06,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:27:06,807 INFO L124 PetriNetUnfolderBase]: 14/256 cut-off events. [2024-10-13 09:27:06,810 INFO L125 PetriNetUnfolderBase]: For 19/24 co-relation queries the response was YES. [2024-10-13 09:27:06,811 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. [2024-10-13 09:27:06,812 INFO L140 encePairwiseOnDemand]: 152/164 looper letters, 19 selfloop transitions, 15 changer transitions 0/156 dead transitions. [2024-10-13 09:27:06,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 156 transitions, 413 flow [2024-10-13 09:27:06,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 09:27:06,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-13 09:27:06,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1326 transitions. [2024-10-13 09:27:06,821 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8085365853658537 [2024-10-13 09:27:06,821 INFO L175 Difference]: Start difference. First operand has 153 places, 142 transitions, 315 flow. Second operand 10 states and 1326 transitions. [2024-10-13 09:27:06,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 156 transitions, 413 flow [2024-10-13 09:27:06,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 156 transitions, 407 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 09:27:06,825 INFO L231 Difference]: Finished difference. Result has 153 places, 150 transitions, 385 flow [2024-10-13 09:27:06,826 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} [2024-10-13 09:27:06,827 INFO L277 CegarLoopForPetriNet]: 152 programPoint places, 1 predicate places. [2024-10-13 09:27:06,827 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 150 transitions, 385 flow [2024-10-13 09:27:06,828 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) [2024-10-13 09:27:06,828 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:27:06,828 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] [2024-10-13 09:27:06,842 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-13 09:27:07,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:27:07,033 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)] === [2024-10-13 09:27:07,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:27:07,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1361136767, now seen corresponding path program 2 times [2024-10-13 09:27:07,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:27:07,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087242991] [2024-10-13 09:27:07,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:27:07,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:27:07,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:27:07,275 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:27:07,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:27:07,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087242991] [2024-10-13 09:27:07,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087242991] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:27:07,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343183677] [2024-10-13 09:27:07,276 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 09:27:07,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:27:07,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:27:07,278 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:27:07,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 09:27:07,337 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 09:27:07,338 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:27:07,338 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-13 09:27:07,341 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:27:07,394 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 [2024-10-13 09:27:07,415 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 [2024-10-13 09:27:07,447 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:27:07,448 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 [2024-10-13 09:27:07,481 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:27:07,481 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 [2024-10-13 09:27:07,509 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-13 09:27:07,510 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 09:27:07,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343183677] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:27:07,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 09:27:07,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 14 [2024-10-13 09:27:07,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224348382] [2024-10-13 09:27:07,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:27:07,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 09:27:07,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:27:07,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 09:27:07,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-10-13 09:27:07,675 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 164 [2024-10-13 09:27:07,676 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) [2024-10-13 09:27:07,676 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:27:07,677 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 164 [2024-10-13 09:27:07,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:27:07,992 INFO L124 PetriNetUnfolderBase]: 338/1523 cut-off events. [2024-10-13 09:27:07,993 INFO L125 PetriNetUnfolderBase]: For 21/24 co-relation queries the response was YES. [2024-10-13 09:27:07,998 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. [2024-10-13 09:27:08,004 INFO L140 encePairwiseOnDemand]: 144/164 looper letters, 40 selfloop transitions, 55 changer transitions 0/211 dead transitions. [2024-10-13 09:27:08,005 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 211 transitions, 697 flow [2024-10-13 09:27:08,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 09:27:08,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-13 09:27:08,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 922 transitions. [2024-10-13 09:27:08,008 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8031358885017421 [2024-10-13 09:27:08,008 INFO L175 Difference]: Start difference. First operand has 153 places, 150 transitions, 385 flow. Second operand 7 states and 922 transitions. [2024-10-13 09:27:08,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 211 transitions, 697 flow [2024-10-13 09:27:08,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 211 transitions, 687 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-13 09:27:08,014 INFO L231 Difference]: Finished difference. Result has 163 places, 203 transitions, 736 flow [2024-10-13 09:27:08,014 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} [2024-10-13 09:27:08,015 INFO L277 CegarLoopForPetriNet]: 152 programPoint places, 11 predicate places. [2024-10-13 09:27:08,017 INFO L471 AbstractCegarLoop]: Abstraction has has 163 places, 203 transitions, 736 flow [2024-10-13 09:27:08,017 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) [2024-10-13 09:27:08,018 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:27:08,018 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] [2024-10-13 09:27:08,039 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-13 09:27:08,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-10-13 09:27:08,219 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)] === [2024-10-13 09:27:08,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:27:08,220 INFO L85 PathProgramCache]: Analyzing trace with hash -997427505, now seen corresponding path program 1 times [2024-10-13 09:27:08,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:27:08,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643481097] [2024-10-13 09:27:08,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:27:08,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:27:08,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:27:08,346 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:27:08,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:27:08,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643481097] [2024-10-13 09:27:08,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643481097] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:27:08,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137041675] [2024-10-13 09:27:08,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:27:08,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:27:08,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:27:08,349 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:27:08,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 09:27:08,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:27:08,414 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 09:27:08,416 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:27:08,447 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:27:08,447 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:27:08,522 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:27:08,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137041675] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:27:08,522 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:27:08,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-13 09:27:08,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274722720] [2024-10-13 09:27:08,523 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:27:08,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-13 09:27:08,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:27:08,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-13 09:27:08,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-13 09:27:08,806 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 164 [2024-10-13 09:27:08,809 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) [2024-10-13 09:27:08,809 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:27:08,809 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 164 [2024-10-13 09:27:08,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:27:09,071 INFO L124 PetriNetUnfolderBase]: 159/848 cut-off events. [2024-10-13 09:27:09,072 INFO L125 PetriNetUnfolderBase]: For 118/123 co-relation queries the response was YES. [2024-10-13 09:27:09,075 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. [2024-10-13 09:27:09,078 INFO L140 encePairwiseOnDemand]: 152/164 looper letters, 23 selfloop transitions, 27 changer transitions 0/225 dead transitions. [2024-10-13 09:27:09,078 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 225 transitions, 932 flow [2024-10-13 09:27:09,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-13 09:27:09,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-10-13 09:27:09,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2892 transitions. [2024-10-13 09:27:09,085 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8015521064301552 [2024-10-13 09:27:09,085 INFO L175 Difference]: Start difference. First operand has 163 places, 203 transitions, 736 flow. Second operand 22 states and 2892 transitions. [2024-10-13 09:27:09,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 225 transitions, 932 flow [2024-10-13 09:27:09,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 225 transitions, 931 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 09:27:09,092 INFO L231 Difference]: Finished difference. Result has 188 places, 216 transitions, 883 flow [2024-10-13 09:27:09,093 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} [2024-10-13 09:27:09,093 INFO L277 CegarLoopForPetriNet]: 152 programPoint places, 36 predicate places. [2024-10-13 09:27:09,094 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 216 transitions, 883 flow [2024-10-13 09:27:09,095 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) [2024-10-13 09:27:09,095 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:27:09,095 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] [2024-10-13 09:27:09,110 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-13 09:27:09,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:27:09,297 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)] === [2024-10-13 09:27:09,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:27:09,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1289656433, now seen corresponding path program 2 times [2024-10-13 09:27:09,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:27:09,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574105481] [2024-10-13 09:27:09,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:27:09,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:27:09,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:27:09,524 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:27:09,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:27:09,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574105481] [2024-10-13 09:27:09,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574105481] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:27:09,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103863041] [2024-10-13 09:27:09,525 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 09:27:09,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:27:09,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:27:09,527 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:27:09,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 09:27:09,596 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 09:27:09,596 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:27:09,597 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-13 09:27:09,599 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:27:09,692 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 [2024-10-13 09:27:09,713 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 [2024-10-13 09:27:09,737 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:27:09,737 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 [2024-10-13 09:27:09,774 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:27:09,774 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 [2024-10-13 09:27:09,801 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-13 09:27:09,802 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 09:27:09,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2103863041] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:27:09,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 09:27:09,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 23 [2024-10-13 09:27:09,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874725098] [2024-10-13 09:27:09,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:27:09,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 09:27:09,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:27:09,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 09:27:09,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2024-10-13 09:27:10,023 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 164 [2024-10-13 09:27:10,024 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) [2024-10-13 09:27:10,024 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:27:10,024 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 164 [2024-10-13 09:27:10,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:27:10,509 INFO L124 PetriNetUnfolderBase]: 406/1665 cut-off events. [2024-10-13 09:27:10,509 INFO L125 PetriNetUnfolderBase]: For 572/576 co-relation queries the response was YES. [2024-10-13 09:27:10,517 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. [2024-10-13 09:27:10,531 INFO L140 encePairwiseOnDemand]: 150/164 looper letters, 118 selfloop transitions, 13 changer transitions 1/247 dead transitions. [2024-10-13 09:27:10,531 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 247 transitions, 1251 flow [2024-10-13 09:27:10,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 09:27:10,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 09:27:10,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 917 transitions. [2024-10-13 09:27:10,537 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6989329268292683 [2024-10-13 09:27:10,537 INFO L175 Difference]: Start difference. First operand has 188 places, 216 transitions, 883 flow. Second operand 8 states and 917 transitions. [2024-10-13 09:27:10,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 247 transitions, 1251 flow [2024-10-13 09:27:10,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 247 transitions, 1223 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-10-13 09:27:10,545 INFO L231 Difference]: Finished difference. Result has 194 places, 222 transitions, 927 flow [2024-10-13 09:27:10,545 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} [2024-10-13 09:27:10,546 INFO L277 CegarLoopForPetriNet]: 152 programPoint places, 42 predicate places. [2024-10-13 09:27:10,546 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 222 transitions, 927 flow [2024-10-13 09:27:10,546 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) [2024-10-13 09:27:10,547 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:27:10,547 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] [2024-10-13 09:27:10,563 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-13 09:27:10,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:27:10,747 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)] === [2024-10-13 09:27:10,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:27:10,748 INFO L85 PathProgramCache]: Analyzing trace with hash -750038778, now seen corresponding path program 1 times [2024-10-13 09:27:10,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:27:10,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603354262] [2024-10-13 09:27:10,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:27:10,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:27:10,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:27:11,221 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:27:11,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:27:11,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603354262] [2024-10-13 09:27:11,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603354262] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:27:11,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967306266] [2024-10-13 09:27:11,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:27:11,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:27:11,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:27:11,224 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:27:11,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 09:27:11,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:27:11,314 INFO L255 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-13 09:27:11,316 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:27:11,397 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:27:11,398 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:27:11,693 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:27:11,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1967306266] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:27:11,694 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:27:11,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-10-13 09:27:11,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448181994] [2024-10-13 09:27:11,694 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:27:11,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-13 09:27:11,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:27:11,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-13 09:27:11,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-10-13 09:27:12,216 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 164 [2024-10-13 09:27:12,220 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) [2024-10-13 09:27:12,220 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:27:12,220 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 164 [2024-10-13 09:27:12,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:27:12,805 INFO L124 PetriNetUnfolderBase]: 165/985 cut-off events. [2024-10-13 09:27:12,805 INFO L125 PetriNetUnfolderBase]: For 452/458 co-relation queries the response was YES. [2024-10-13 09:27:12,807 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. [2024-10-13 09:27:12,810 INFO L140 encePairwiseOnDemand]: 152/164 looper letters, 31 selfloop transitions, 51 changer transitions 0/263 dead transitions. [2024-10-13 09:27:12,810 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 263 transitions, 1371 flow [2024-10-13 09:27:12,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-10-13 09:27:12,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2024-10-13 09:27:12,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 6024 transitions. [2024-10-13 09:27:12,819 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7985153764581124 [2024-10-13 09:27:12,819 INFO L175 Difference]: Start difference. First operand has 194 places, 222 transitions, 927 flow. Second operand 46 states and 6024 transitions. [2024-10-13 09:27:12,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 263 transitions, 1371 flow [2024-10-13 09:27:12,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 263 transitions, 1361 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-13 09:27:12,825 INFO L231 Difference]: Finished difference. Result has 246 places, 247 transitions, 1237 flow [2024-10-13 09:27:12,826 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} [2024-10-13 09:27:12,826 INFO L277 CegarLoopForPetriNet]: 152 programPoint places, 94 predicate places. [2024-10-13 09:27:12,826 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 247 transitions, 1237 flow [2024-10-13 09:27:12,828 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) [2024-10-13 09:27:12,828 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:27:12,828 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] [2024-10-13 09:27:12,847 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-13 09:27:13,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:27:13,030 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)] === [2024-10-13 09:27:13,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:27:13,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1829809530, now seen corresponding path program 2 times [2024-10-13 09:27:13,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:27:13,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675117418] [2024-10-13 09:27:13,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:27:13,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:27:13,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:27:13,692 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:27:13,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:27:13,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675117418] [2024-10-13 09:27:13,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675117418] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:27:13,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083855162] [2024-10-13 09:27:13,693 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 09:27:13,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:27:13,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:27:13,694 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:27:13,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-13 09:27:13,782 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 09:27:13,782 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:27:13,783 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-13 09:27:13,786 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:27:13,791 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 [2024-10-13 09:27:13,818 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 [2024-10-13 09:27:13,847 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:27:13,848 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 [2024-10-13 09:27:13,886 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:27:13,886 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 [2024-10-13 09:27:13,920 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2024-10-13 09:27:13,920 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 09:27:13,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2083855162] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:27:13,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 09:27:13,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [33] total 37 [2024-10-13 09:27:13,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670926352] [2024-10-13 09:27:13,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:27:13,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:27:13,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:27:13,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:27:13,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=1030, Unknown=0, NotChecked=0, Total=1332 [2024-10-13 09:27:14,056 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 164 [2024-10-13 09:27:14,057 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) [2024-10-13 09:27:14,057 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:27:14,057 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 164 [2024-10-13 09:27:14,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:27:14,324 INFO L124 PetriNetUnfolderBase]: 354/1899 cut-off events. [2024-10-13 09:27:14,325 INFO L125 PetriNetUnfolderBase]: For 672/688 co-relation queries the response was YES. [2024-10-13 09:27:14,333 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. [2024-10-13 09:27:14,338 INFO L140 encePairwiseOnDemand]: 149/164 looper letters, 60 selfloop transitions, 50 changer transitions 0/294 dead transitions. [2024-10-13 09:27:14,338 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 294 transitions, 1662 flow [2024-10-13 09:27:14,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:27:14,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:27:14,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 850 transitions. [2024-10-13 09:27:14,340 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8638211382113821 [2024-10-13 09:27:14,341 INFO L175 Difference]: Start difference. First operand has 246 places, 247 transitions, 1237 flow. Second operand 6 states and 850 transitions. [2024-10-13 09:27:14,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 294 transitions, 1662 flow [2024-10-13 09:27:14,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 294 transitions, 1602 flow, removed 10 selfloop flow, removed 18 redundant places. [2024-10-13 09:27:14,350 INFO L231 Difference]: Finished difference. Result has 238 places, 291 transitions, 1615 flow [2024-10-13 09:27:14,351 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} [2024-10-13 09:27:14,351 INFO L277 CegarLoopForPetriNet]: 152 programPoint places, 86 predicate places. [2024-10-13 09:27:14,351 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 291 transitions, 1615 flow [2024-10-13 09:27:14,352 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) [2024-10-13 09:27:14,352 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:27:14,352 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] [2024-10-13 09:27:14,369 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-13 09:27:14,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:27:14,557 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)] === [2024-10-13 09:27:14,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:27:14,557 INFO L85 PathProgramCache]: Analyzing trace with hash -948909800, now seen corresponding path program 1 times [2024-10-13 09:27:14,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:27:14,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103640464] [2024-10-13 09:27:14,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:27:14,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:27:14,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:27:14,660 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2024-10-13 09:27:14,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:27:14,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103640464] [2024-10-13 09:27:14,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103640464] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:27:14,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1050869975] [2024-10-13 09:27:14,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:27:14,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:27:14,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:27:14,662 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:27:14,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-13 09:27:14,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:27:14,767 INFO L255 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-13 09:27:14,769 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:27:15,174 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 09:27:15,174 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:27:15,943 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 09:27:15,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1050869975] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:27:15,943 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:27:15,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 33, 33] total 66 [2024-10-13 09:27:15,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040868646] [2024-10-13 09:27:15,943 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:27:15,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2024-10-13 09:27:15,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:27:15,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2024-10-13 09:27:15,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1092, Invalid=3198, Unknown=0, NotChecked=0, Total=4290 [2024-10-13 09:27:16,895 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 164 [2024-10-13 09:27:16,905 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) [2024-10-13 09:27:16,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:27:16,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 164 [2024-10-13 09:27:16,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:27:18,743 INFO L124 PetriNetUnfolderBase]: 293/1967 cut-off events. [2024-10-13 09:27:18,744 INFO L125 PetriNetUnfolderBase]: For 2824/2837 co-relation queries the response was YES. [2024-10-13 09:27:18,752 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. [2024-10-13 09:27:18,759 INFO L140 encePairwiseOnDemand]: 153/164 looper letters, 47 selfloop transitions, 97 changer transitions 0/357 dead transitions. [2024-10-13 09:27:18,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 357 transitions, 2603 flow [2024-10-13 09:27:18,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2024-10-13 09:27:18,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2024-10-13 09:27:18,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 12226 transitions. [2024-10-13 09:27:18,773 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7847240051347882 [2024-10-13 09:27:18,773 INFO L175 Difference]: Start difference. First operand has 238 places, 291 transitions, 1615 flow. Second operand 95 states and 12226 transitions. [2024-10-13 09:27:18,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 357 transitions, 2603 flow [2024-10-13 09:27:18,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 357 transitions, 2561 flow, removed 21 selfloop flow, removed 0 redundant places. [2024-10-13 09:27:18,789 INFO L231 Difference]: Finished difference. Result has 335 places, 324 transitions, 2204 flow [2024-10-13 09:27:18,790 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} [2024-10-13 09:27:18,790 INFO L277 CegarLoopForPetriNet]: 152 programPoint places, 183 predicate places. [2024-10-13 09:27:18,790 INFO L471 AbstractCegarLoop]: Abstraction has has 335 places, 324 transitions, 2204 flow [2024-10-13 09:27:18,794 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) [2024-10-13 09:27:18,794 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:27:18,794 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] [2024-10-13 09:27:18,813 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-13 09:27:18,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:27:18,996 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)] === [2024-10-13 09:27:18,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:27:18,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1641056046, now seen corresponding path program 1 times [2024-10-13 09:27:18,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:27:18,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515085166] [2024-10-13 09:27:18,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:27:18,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:27:19,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:27:21,075 INFO L134 CoverageAnalysis]: Checked inductivity of 2364 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-13 09:27:21,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:27:21,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515085166] [2024-10-13 09:27:21,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515085166] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:27:21,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976583337] [2024-10-13 09:27:21,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:27:21,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:27:21,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:27:21,077 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:27:21,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-13 09:27:21,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:27:21,214 INFO L255 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-10-13 09:27:21,217 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:27:21,468 INFO L134 CoverageAnalysis]: Checked inductivity of 2364 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-13 09:27:21,470 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:27:23,941 INFO L134 CoverageAnalysis]: Checked inductivity of 2364 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-13 09:27:23,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976583337] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:27:23,941 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:27:23,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2024-10-13 09:27:23,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178144686] [2024-10-13 09:27:23,942 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:27:23,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2024-10-13 09:27:23,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:27:23,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2024-10-13 09:27:23,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2024-10-13 09:27:25,685 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 164 [2024-10-13 09:27:25,696 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) [2024-10-13 09:27:25,696 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:27:25,696 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 164 [2024-10-13 09:27:25,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:27:31,540 INFO L124 PetriNetUnfolderBase]: 285/2115 cut-off events. [2024-10-13 09:27:31,540 INFO L125 PetriNetUnfolderBase]: For 17613/17626 co-relation queries the response was YES. [2024-10-13 09:27:31,555 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. [2024-10-13 09:27:31,562 INFO L140 encePairwiseOnDemand]: 155/164 looper letters, 76 selfloop transitions, 192 changer transitions 0/483 dead transitions. [2024-10-13 09:27:31,562 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 523 places, 483 transitions, 4768 flow [2024-10-13 09:27:31,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2024-10-13 09:27:31,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2024-10-13 09:27:31,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 24681 transitions. [2024-10-13 09:27:31,585 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7962640340689121 [2024-10-13 09:27:31,586 INFO L175 Difference]: Start difference. First operand has 335 places, 324 transitions, 2204 flow. Second operand 189 states and 24681 transitions. [2024-10-13 09:27:31,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 523 places, 483 transitions, 4768 flow [2024-10-13 09:27:31,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 479 places, 483 transitions, 4577 flow, removed 50 selfloop flow, removed 44 redundant places. [2024-10-13 09:27:31,621 INFO L231 Difference]: Finished difference. Result has 512 places, 421 transitions, 3644 flow [2024-10-13 09:27:31,622 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} [2024-10-13 09:27:31,623 INFO L277 CegarLoopForPetriNet]: 152 programPoint places, 360 predicate places. [2024-10-13 09:27:31,624 INFO L471 AbstractCegarLoop]: Abstraction has has 512 places, 421 transitions, 3644 flow [2024-10-13 09:27:31,628 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) [2024-10-13 09:27:31,633 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:27:31,633 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] [2024-10-13 09:27:31,659 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-13 09:27:31,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-10-13 09:27:31,835 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)] === [2024-10-13 09:27:31,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:27:31,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1222249774, now seen corresponding path program 2 times [2024-10-13 09:27:31,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:27:31,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885759005] [2024-10-13 09:27:31,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:27:31,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:27:31,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:27:38,915 INFO L134 CoverageAnalysis]: Checked inductivity of 9836 backedges. 0 proven. 9828 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-13 09:27:38,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:27:38,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885759005] [2024-10-13 09:27:38,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885759005] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:27:38,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241981781] [2024-10-13 09:27:38,916 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 09:27:38,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:27:38,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:27:38,918 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:27:38,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-13 09:27:39,122 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 09:27:39,123 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:27:39,128 INFO L255 TraceCheckSpWp]: Trace formula consists of 813 conjuncts, 128 conjuncts are in the unsatisfiable core [2024-10-13 09:27:39,133 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:27:39,475 INFO L134 CoverageAnalysis]: Checked inductivity of 9836 backedges. 0 proven. 9828 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-13 09:27:39,476 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:27:49,805 INFO L134 CoverageAnalysis]: Checked inductivity of 9836 backedges. 0 proven. 9828 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-13 09:27:49,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241981781] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:27:49,806 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:27:49,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [129, 129, 129] total 258 [2024-10-13 09:27:49,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822718560] [2024-10-13 09:27:49,806 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:27:49,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 258 states [2024-10-13 09:27:49,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:27:49,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 258 interpolants. [2024-10-13 09:27:49,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16770, Invalid=49536, Unknown=0, NotChecked=0, Total=66306 [2024-10-13 09:27:56,538 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 164 [2024-10-13 09:27:56,557 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) [2024-10-13 09:27:56,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:27:56,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 164 [2024-10-13 09:27:56,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:28:17,962 INFO L124 PetriNetUnfolderBase]: 285/2435 cut-off events. [2024-10-13 09:28:17,962 INFO L125 PetriNetUnfolderBase]: For 133415/133428 co-relation queries the response was YES. [2024-10-13 09:28:17,977 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. [2024-10-13 09:28:17,986 INFO L140 encePairwiseOnDemand]: 155/164 looper letters, 140 selfloop transitions, 384 changer transitions 0/739 dead transitions. [2024-10-13 09:28:17,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 892 places, 739 transitions, 9644 flow [2024-10-13 09:28:17,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 381 states. [2024-10-13 09:28:17,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2024-10-13 09:28:18,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 49737 transitions. [2024-10-13 09:28:18,021 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7959957749183791 [2024-10-13 09:28:18,021 INFO L175 Difference]: Start difference. First operand has 512 places, 421 transitions, 3644 flow. Second operand 381 states and 49737 transitions. [2024-10-13 09:28:18,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 892 places, 739 transitions, 9644 flow [2024-10-13 09:28:18,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 802 places, 739 transitions, 9395 flow, removed 33 selfloop flow, removed 90 redundant places. [2024-10-13 09:28:18,118 INFO L231 Difference]: Finished difference. Result has 867 places, 614 transitions, 7014 flow [2024-10-13 09:28:18,120 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} [2024-10-13 09:28:18,120 INFO L277 CegarLoopForPetriNet]: 152 programPoint places, 715 predicate places. [2024-10-13 09:28:18,120 INFO L471 AbstractCegarLoop]: Abstraction has has 867 places, 614 transitions, 7014 flow [2024-10-13 09:28:18,130 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) [2024-10-13 09:28:18,130 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:28:18,130 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] [2024-10-13 09:28:18,145 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-13 09:28:18,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-13 09:28:18,336 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)] === [2024-10-13 09:28:18,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:28:18,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1257957074, now seen corresponding path program 3 times [2024-10-13 09:28:18,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:28:18,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856259478] [2024-10-13 09:28:18,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:28:18,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:28:18,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat