./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-race-challenges/thread-join-array-const-race-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-race-challenges/thread-join-array-const-race-2.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 860528881155a718438c0581485d42cc235131c30c9ba38f0a976304f206e75d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 06:04:19,040 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 06:04:19,113 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-19 06:04:19,120 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 06:04:19,121 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 06:04:19,155 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 06:04:19,158 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 06:04:19,158 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 06:04:19,159 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 06:04:19,160 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 06:04:19,161 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 06:04:19,161 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 06:04:19,161 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 06:04:19,162 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 06:04:19,163 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 06:04:19,164 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 06:04:19,164 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 06:04:19,164 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 06:04:19,164 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 06:04:19,165 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 06:04:19,165 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 06:04:19,166 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 06:04:19,166 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-19 06:04:19,169 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 06:04:19,169 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 06:04:19,170 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 06:04:19,170 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 06:04:19,170 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 06:04:19,170 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 06:04:19,171 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 06:04:19,171 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 06:04:19,171 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 06:04:19,171 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 06:04:19,171 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 06:04:19,172 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 06:04:19,172 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 06:04:19,174 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 06:04:19,174 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 06:04:19,174 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 06:04:19,174 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 06:04:19,174 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 06:04:19,175 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 860528881155a718438c0581485d42cc235131c30c9ba38f0a976304f206e75d [2024-11-19 06:04:19,396 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 06:04:19,418 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 06:04:19,420 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 06:04:19,421 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 06:04:19,422 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 06:04:19,423 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-race-challenges/thread-join-array-const-race-2.i [2024-11-19 06:04:20,900 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 06:04:21,151 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 06:04:21,152 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/thread-join-array-const-race-2.i [2024-11-19 06:04:21,166 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/000496097/0166f723af1d4210a2f5367ff7ef64c5/FLAG8d46338f8 [2024-11-19 06:04:21,178 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/000496097/0166f723af1d4210a2f5367ff7ef64c5 [2024-11-19 06:04:21,180 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 06:04:21,181 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 06:04:21,182 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 06:04:21,182 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 06:04:21,188 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 06:04:21,188 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:04:21" (1/1) ... [2024-11-19 06:04:21,190 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c78129d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:04:21, skipping insertion in model container [2024-11-19 06:04:21,192 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:04:21" (1/1) ... [2024-11-19 06:04:21,231 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 06:04:21,581 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 06:04:21,605 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 06:04:21,663 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 06:04:21,709 INFO L204 MainTranslator]: Completed translation [2024-11-19 06:04:21,710 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:04:21 WrapperNode [2024-11-19 06:04:21,710 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 06:04:21,711 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 06:04:21,711 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 06:04:21,711 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 06:04:21,718 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:04:21" (1/1) ... [2024-11-19 06:04:21,739 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:04:21" (1/1) ... [2024-11-19 06:04:21,765 INFO L138 Inliner]: procedures = 158, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 59 [2024-11-19 06:04:21,767 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 06:04:21,767 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 06:04:21,767 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 06:04:21,768 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 06:04:21,776 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:04:21" (1/1) ... [2024-11-19 06:04:21,776 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:04:21" (1/1) ... [2024-11-19 06:04:21,779 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:04:21" (1/1) ... [2024-11-19 06:04:21,779 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:04:21" (1/1) ... [2024-11-19 06:04:21,791 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:04:21" (1/1) ... [2024-11-19 06:04:21,794 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:04:21" (1/1) ... [2024-11-19 06:04:21,799 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:04:21" (1/1) ... [2024-11-19 06:04:21,804 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:04:21" (1/1) ... [2024-11-19 06:04:21,806 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 06:04:21,807 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 06:04:21,807 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 06:04:21,807 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 06:04:21,808 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:04:21" (1/1) ... [2024-11-19 06:04:21,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 06:04:21,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:04:21,849 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 06:04:21,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 06:04:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-19 06:04:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-19 06:04:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-19 06:04:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 06:04:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 06:04:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 06:04:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-19 06:04:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-19 06:04:21,904 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-19 06:04:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-19 06:04:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 06:04:21,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 06:04:21,906 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 06:04:22,029 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 06:04:22,032 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 06:04:22,215 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 06:04:22,215 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 06:04:22,242 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 06:04:22,243 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-19 06:04:22,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:04:22 BoogieIcfgContainer [2024-11-19 06:04:22,243 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 06:04:22,246 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 06:04:22,246 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 06:04:22,249 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 06:04:22,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:04:21" (1/3) ... [2024-11-19 06:04:22,251 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a394a10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:04:22, skipping insertion in model container [2024-11-19 06:04:22,251 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:04:21" (2/3) ... [2024-11-19 06:04:22,251 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a394a10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:04:22, skipping insertion in model container [2024-11-19 06:04:22,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:04:22" (3/3) ... [2024-11-19 06:04:22,253 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-join-array-const-race-2.i [2024-11-19 06:04:22,274 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 06:04:22,274 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-19 06:04:22,275 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 06:04:22,334 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-19 06:04:22,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 77 transitions, 161 flow [2024-11-19 06:04:22,451 INFO L124 PetriNetUnfolderBase]: 5/112 cut-off events. [2024-11-19 06:04:22,452 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 06:04:22,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 112 events. 5/112 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 216 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 57. Up to 4 conditions per place. [2024-11-19 06:04:22,458 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 77 transitions, 161 flow [2024-11-19 06:04:22,462 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 77 transitions, 161 flow [2024-11-19 06:04:22,473 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:04:22,483 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;@64358636, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:04:22,483 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-19 06:04:22,500 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:04:22,502 INFO L124 PetriNetUnfolderBase]: 2/34 cut-off events. [2024-11-19 06:04:22,502 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:04:22,502 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:04:22,503 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] [2024-11-19 06:04:22,504 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-19 06:04:22,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:04:22,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1063124316, now seen corresponding path program 1 times [2024-11-19 06:04:22,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:04:22,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830452461] [2024-11-19 06:04:22,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:22,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:04:22,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:22,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:04:22,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:04:22,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830452461] [2024-11-19 06:04:22,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830452461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:04:22,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:04:22,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 06:04:22,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954146961] [2024-11-19 06:04:22,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:04:22,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 06:04:22,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:04:22,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 06:04:22,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 06:04:23,014 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 77 [2024-11-19 06:04:23,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 77 transitions, 161 flow. Second operand has 4 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:23,020 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:04:23,020 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 77 [2024-11-19 06:04:23,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:04:23,097 INFO L124 PetriNetUnfolderBase]: 8/185 cut-off events. [2024-11-19 06:04:23,097 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-19 06:04:23,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 185 events. 8/185 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 577 event pairs, 0 based on Foata normal form. 5/170 useless extension candidates. Maximal degree in co-relation 155. Up to 17 conditions per place. [2024-11-19 06:04:23,101 INFO L140 encePairwiseOnDemand]: 70/77 looper letters, 10 selfloop transitions, 4 changer transitions 1/79 dead transitions. [2024-11-19 06:04:23,101 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 79 transitions, 195 flow [2024-11-19 06:04:23,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 06:04:23,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 06:04:23,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 275 transitions. [2024-11-19 06:04:23,116 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8928571428571429 [2024-11-19 06:04:23,118 INFO L175 Difference]: Start difference. First operand has 77 places, 77 transitions, 161 flow. Second operand 4 states and 275 transitions. [2024-11-19 06:04:23,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 79 transitions, 195 flow [2024-11-19 06:04:23,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 79 transitions, 195 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 06:04:23,127 INFO L231 Difference]: Finished difference. Result has 81 places, 75 transitions, 169 flow [2024-11-19 06:04:23,133 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=169, PETRI_PLACES=81, PETRI_TRANSITIONS=75} [2024-11-19 06:04:23,136 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 4 predicate places. [2024-11-19 06:04:23,138 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 75 transitions, 169 flow [2024-11-19 06:04:23,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:23,139 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:04:23,139 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] [2024-11-19 06:04:23,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 06:04:23,141 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-19 06:04:23,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:04:23,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1998489104, now seen corresponding path program 1 times [2024-11-19 06:04:23,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:04:23,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295944835] [2024-11-19 06:04:23,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:23,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:04:23,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:23,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:04:23,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:04:23,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295944835] [2024-11-19 06:04:23,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295944835] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:04:23,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:04:23,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:04:23,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222537342] [2024-11-19 06:04:23,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:04:23,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 06:04:23,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:04:23,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 06:04:23,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 06:04:23,763 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 77 [2024-11-19 06:04:23,764 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 75 transitions, 169 flow. Second operand has 6 states, 6 states have (on average 53.5) internal successors, (321), 6 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:23,764 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:04:23,764 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 77 [2024-11-19 06:04:23,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:04:23,888 INFO L124 PetriNetUnfolderBase]: 30/233 cut-off events. [2024-11-19 06:04:23,888 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-19 06:04:23,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 350 conditions, 233 events. 30/233 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 945 event pairs, 4 based on Foata normal form. 0/216 useless extension candidates. Maximal degree in co-relation 273. Up to 62 conditions per place. [2024-11-19 06:04:23,890 INFO L140 encePairwiseOnDemand]: 71/77 looper letters, 25 selfloop transitions, 5 changer transitions 0/82 dead transitions. [2024-11-19 06:04:23,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 82 transitions, 243 flow [2024-11-19 06:04:23,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 06:04:23,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 06:04:23,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 343 transitions. [2024-11-19 06:04:23,894 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7424242424242424 [2024-11-19 06:04:23,894 INFO L175 Difference]: Start difference. First operand has 81 places, 75 transitions, 169 flow. Second operand 6 states and 343 transitions. [2024-11-19 06:04:23,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 82 transitions, 243 flow [2024-11-19 06:04:23,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 82 transitions, 235 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 06:04:23,899 INFO L231 Difference]: Finished difference. Result has 82 places, 74 transitions, 169 flow [2024-11-19 06:04:23,899 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=169, PETRI_PLACES=82, PETRI_TRANSITIONS=74} [2024-11-19 06:04:23,900 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 5 predicate places. [2024-11-19 06:04:23,900 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 74 transitions, 169 flow [2024-11-19 06:04:23,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 53.5) internal successors, (321), 6 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:23,902 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:04:23,902 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] [2024-11-19 06:04:23,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 06:04:23,903 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-19 06:04:23,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:04:23,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1957567684, now seen corresponding path program 1 times [2024-11-19 06:04:23,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:04:23,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307911143] [2024-11-19 06:04:23,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:23,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:04:23,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:23,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:04:23,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:04:23,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307911143] [2024-11-19 06:04:23,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307911143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:04:23,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:04:23,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:04:23,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900541806] [2024-11-19 06:04:23,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:04:23,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:04:23,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:04:23,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:04:23,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:04:23,982 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 77 [2024-11-19 06:04:23,982 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 74 transitions, 169 flow. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:23,983 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:04:23,983 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 77 [2024-11-19 06:04:23,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:04:24,015 INFO L124 PetriNetUnfolderBase]: 6/141 cut-off events. [2024-11-19 06:04:24,017 INFO L125 PetriNetUnfolderBase]: For 4/10 co-relation queries the response was YES. [2024-11-19 06:04:24,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 141 events. 6/141 cut-off events. For 4/10 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 379 event pairs, 4 based on Foata normal form. 1/130 useless extension candidates. Maximal degree in co-relation 134. Up to 21 conditions per place. [2024-11-19 06:04:24,020 INFO L140 encePairwiseOnDemand]: 72/77 looper letters, 9 selfloop transitions, 4 changer transitions 0/77 dead transitions. [2024-11-19 06:04:24,020 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 77 transitions, 201 flow [2024-11-19 06:04:24,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:04:24,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:04:24,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 209 transitions. [2024-11-19 06:04:24,024 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9047619047619048 [2024-11-19 06:04:24,024 INFO L175 Difference]: Start difference. First operand has 82 places, 74 transitions, 169 flow. Second operand 3 states and 209 transitions. [2024-11-19 06:04:24,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 77 transitions, 201 flow [2024-11-19 06:04:24,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 77 transitions, 191 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 06:04:24,028 INFO L231 Difference]: Finished difference. Result has 81 places, 77 transitions, 189 flow [2024-11-19 06:04:24,029 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=189, PETRI_PLACES=81, PETRI_TRANSITIONS=77} [2024-11-19 06:04:24,030 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 4 predicate places. [2024-11-19 06:04:24,031 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 77 transitions, 189 flow [2024-11-19 06:04:24,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:24,032 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:04:24,032 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:04:24,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 06:04:24,033 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-19 06:04:24,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:04:24,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1947567396, now seen corresponding path program 1 times [2024-11-19 06:04:24,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:04:24,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268479487] [2024-11-19 06:04:24,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:24,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:04:24,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:24,123 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 06:04:24,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:04:24,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268479487] [2024-11-19 06:04:24,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268479487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:04:24,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:04:24,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 06:04:24,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603898524] [2024-11-19 06:04:24,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:04:24,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 06:04:24,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:04:24,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 06:04:24,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 06:04:24,170 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 77 [2024-11-19 06:04:24,170 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 77 transitions, 189 flow. Second operand has 4 states, 4 states have (on average 65.5) internal successors, (262), 4 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:24,170 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:04:24,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 77 [2024-11-19 06:04:24,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:04:24,199 INFO L124 PetriNetUnfolderBase]: 2/106 cut-off events. [2024-11-19 06:04:24,200 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-19 06:04:24,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 106 events. 2/106 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 154 event pairs, 0 based on Foata normal form. 3/104 useless extension candidates. Maximal degree in co-relation 82. Up to 7 conditions per place. [2024-11-19 06:04:24,202 INFO L140 encePairwiseOnDemand]: 72/77 looper letters, 9 selfloop transitions, 3 changer transitions 7/75 dead transitions. [2024-11-19 06:04:24,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 75 transitions, 199 flow [2024-11-19 06:04:24,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 06:04:24,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 06:04:24,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 270 transitions. [2024-11-19 06:04:24,204 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8766233766233766 [2024-11-19 06:04:24,204 INFO L175 Difference]: Start difference. First operand has 81 places, 77 transitions, 189 flow. Second operand 4 states and 270 transitions. [2024-11-19 06:04:24,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 75 transitions, 199 flow [2024-11-19 06:04:24,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 75 transitions, 187 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-11-19 06:04:24,206 INFO L231 Difference]: Finished difference. Result has 80 places, 66 transitions, 153 flow [2024-11-19 06:04:24,207 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=153, PETRI_PLACES=80, PETRI_TRANSITIONS=66} [2024-11-19 06:04:24,207 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 3 predicate places. [2024-11-19 06:04:24,208 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 66 transitions, 153 flow [2024-11-19 06:04:24,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.5) internal successors, (262), 4 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:24,208 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:04:24,208 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:04:24,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 06:04:24,208 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-19 06:04:24,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:04:24,209 INFO L85 PathProgramCache]: Analyzing trace with hash -226547286, now seen corresponding path program 1 times [2024-11-19 06:04:24,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:04:24,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031015146] [2024-11-19 06:04:24,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:24,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:04:24,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:24,354 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:04:24,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:04:24,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031015146] [2024-11-19 06:04:24,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031015146] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:04:24,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1578407664] [2024-11-19 06:04:24,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:24,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:04:24,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:04:24,358 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 06:04:24,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 06:04:24,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:24,445 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 06:04:24,449 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:04:24,582 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:04:24,585 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 06:04:24,654 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:04:24,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1578407664] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 06:04:24,655 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 06:04:24,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-19 06:04:24,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867386397] [2024-11-19 06:04:24,655 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 06:04:24,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 06:04:24,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:04:24,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 06:04:24,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-19 06:04:24,782 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 77 [2024-11-19 06:04:24,784 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 66 transitions, 153 flow. Second operand has 13 states, 13 states have (on average 62.92307692307692) internal successors, (818), 13 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:24,784 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:04:24,784 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 77 [2024-11-19 06:04:24,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:04:24,832 INFO L124 PetriNetUnfolderBase]: 8/97 cut-off events. [2024-11-19 06:04:24,832 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-19 06:04:24,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 97 events. 8/97 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 166 event pairs, 0 based on Foata normal form. 3/98 useless extension candidates. Maximal degree in co-relation 130. Up to 10 conditions per place. [2024-11-19 06:04:24,834 INFO L140 encePairwiseOnDemand]: 71/77 looper letters, 12 selfloop transitions, 5 changer transitions 0/55 dead transitions. [2024-11-19 06:04:24,834 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 55 transitions, 152 flow [2024-11-19 06:04:24,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 06:04:24,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 06:04:24,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 445 transitions. [2024-11-19 06:04:24,836 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8256029684601113 [2024-11-19 06:04:24,836 INFO L175 Difference]: Start difference. First operand has 80 places, 66 transitions, 153 flow. Second operand 7 states and 445 transitions. [2024-11-19 06:04:24,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 55 transitions, 152 flow [2024-11-19 06:04:24,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 55 transitions, 149 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:04:24,838 INFO L231 Difference]: Finished difference. Result has 59 places, 48 transitions, 111 flow [2024-11-19 06:04:24,839 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=111, PETRI_PLACES=59, PETRI_TRANSITIONS=48} [2024-11-19 06:04:24,842 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, -18 predicate places. [2024-11-19 06:04:24,842 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 48 transitions, 111 flow [2024-11-19 06:04:24,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.92307692307692) internal successors, (818), 13 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:24,843 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:04:24,843 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:04:24,863 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 06:04:25,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:04:25,053 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-19 06:04:25,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:04:25,054 INFO L85 PathProgramCache]: Analyzing trace with hash 414146859, now seen corresponding path program 1 times [2024-11-19 06:04:25,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:04:25,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947693047] [2024-11-19 06:04:25,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:25,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:04:25,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:04:25,076 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:04:25,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:04:25,114 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:04:25,115 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:04:25,116 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2024-11-19 06:04:25,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2024-11-19 06:04:25,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2024-11-19 06:04:25,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2024-11-19 06:04:25,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2024-11-19 06:04:25,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2024-11-19 06:04:25,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 06:04:25,120 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-19 06:04:25,121 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:04:25,122 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-19 06:04:25,155 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-19 06:04:25,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 95 transitions, 206 flow [2024-11-19 06:04:25,180 INFO L124 PetriNetUnfolderBase]: 10/197 cut-off events. [2024-11-19 06:04:25,181 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-19 06:04:25,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 197 events. 10/197 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 453 event pairs, 0 based on Foata normal form. 0/170 useless extension candidates. Maximal degree in co-relation 114. Up to 8 conditions per place. [2024-11-19 06:04:25,181 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 95 transitions, 206 flow [2024-11-19 06:04:25,183 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 95 transitions, 206 flow [2024-11-19 06:04:25,184 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:04:25,185 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;@64358636, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:04:25,185 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-19 06:04:25,188 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:04:25,189 INFO L124 PetriNetUnfolderBase]: 2/34 cut-off events. [2024-11-19 06:04:25,189 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:04:25,189 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:04:25,189 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] [2024-11-19 06:04:25,189 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-19 06:04:25,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:04:25,190 INFO L85 PathProgramCache]: Analyzing trace with hash -2132165308, now seen corresponding path program 1 times [2024-11-19 06:04:25,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:04:25,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968012807] [2024-11-19 06:04:25,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:25,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:04:25,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:25,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:04:25,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:04:25,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968012807] [2024-11-19 06:04:25,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968012807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:04:25,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:04:25,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 06:04:25,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061558684] [2024-11-19 06:04:25,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:04:25,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 06:04:25,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:04:25,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 06:04:25,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 06:04:25,260 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 95 [2024-11-19 06:04:25,260 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 95 transitions, 206 flow. Second operand has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:25,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:04:25,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 95 [2024-11-19 06:04:25,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:04:25,338 INFO L124 PetriNetUnfolderBase]: 72/571 cut-off events. [2024-11-19 06:04:25,339 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-11-19 06:04:25,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 737 conditions, 571 events. 72/571 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 3318 event pairs, 35 based on Foata normal form. 16/538 useless extension candidates. Maximal degree in co-relation 336. Up to 106 conditions per place. [2024-11-19 06:04:25,345 INFO L140 encePairwiseOnDemand]: 88/95 looper letters, 18 selfloop transitions, 4 changer transitions 0/100 dead transitions. [2024-11-19 06:04:25,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 100 transitions, 260 flow [2024-11-19 06:04:25,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 06:04:25,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 06:04:25,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 338 transitions. [2024-11-19 06:04:25,347 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8894736842105263 [2024-11-19 06:04:25,348 INFO L175 Difference]: Start difference. First operand has 96 places, 95 transitions, 206 flow. Second operand 4 states and 338 transitions. [2024-11-19 06:04:25,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 100 transitions, 260 flow [2024-11-19 06:04:25,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 100 transitions, 260 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 06:04:25,351 INFO L231 Difference]: Finished difference. Result has 100 places, 94 transitions, 218 flow [2024-11-19 06:04:25,353 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=218, PETRI_PLACES=100, PETRI_TRANSITIONS=94} [2024-11-19 06:04:25,354 INFO L277 CegarLoopForPetriNet]: 96 programPoint places, 4 predicate places. [2024-11-19 06:04:25,354 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 94 transitions, 218 flow [2024-11-19 06:04:25,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:25,355 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:04:25,355 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] [2024-11-19 06:04:25,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 06:04:25,356 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-19 06:04:25,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:04:25,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1678879695, now seen corresponding path program 1 times [2024-11-19 06:04:25,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:04:25,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327810764] [2024-11-19 06:04:25,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:25,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:04:25,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:25,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:04:25,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:04:25,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327810764] [2024-11-19 06:04:25,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327810764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:04:25,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:04:25,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:04:25,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50707738] [2024-11-19 06:04:25,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:04:25,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 06:04:25,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:04:25,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 06:04:25,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 06:04:25,668 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 95 [2024-11-19 06:04:25,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 94 transitions, 218 flow. Second operand has 6 states, 6 states have (on average 67.5) internal successors, (405), 6 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:25,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:04:25,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 95 [2024-11-19 06:04:25,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:04:25,850 INFO L124 PetriNetUnfolderBase]: 236/941 cut-off events. [2024-11-19 06:04:25,851 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2024-11-19 06:04:25,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1476 conditions, 941 events. 236/941 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 6505 event pairs, 91 based on Foata normal form. 0/875 useless extension candidates. Maximal degree in co-relation 443. Up to 313 conditions per place. [2024-11-19 06:04:25,861 INFO L140 encePairwiseOnDemand]: 89/95 looper letters, 38 selfloop transitions, 5 changer transitions 0/109 dead transitions. [2024-11-19 06:04:25,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 109 transitions, 334 flow [2024-11-19 06:04:25,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 06:04:25,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 06:04:25,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 439 transitions. [2024-11-19 06:04:25,864 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7701754385964912 [2024-11-19 06:04:25,864 INFO L175 Difference]: Start difference. First operand has 100 places, 94 transitions, 218 flow. Second operand 6 states and 439 transitions. [2024-11-19 06:04:25,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 109 transitions, 334 flow [2024-11-19 06:04:25,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 109 transitions, 328 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:04:25,868 INFO L231 Difference]: Finished difference. Result has 102 places, 93 transitions, 220 flow [2024-11-19 06:04:25,868 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=220, PETRI_PLACES=102, PETRI_TRANSITIONS=93} [2024-11-19 06:04:25,870 INFO L277 CegarLoopForPetriNet]: 96 programPoint places, 6 predicate places. [2024-11-19 06:04:25,870 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 93 transitions, 220 flow [2024-11-19 06:04:25,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.5) internal successors, (405), 6 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:25,873 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:04:25,873 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] [2024-11-19 06:04:25,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 06:04:25,874 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-19 06:04:25,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:04:25,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1410162995, now seen corresponding path program 1 times [2024-11-19 06:04:25,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:04:25,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949432504] [2024-11-19 06:04:25,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:25,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:04:25,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:25,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:04:25,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:04:25,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949432504] [2024-11-19 06:04:25,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949432504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:04:25,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:04:25,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:04:25,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940872982] [2024-11-19 06:04:25,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:04:25,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:04:25,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:04:25,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:04:25,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:04:25,926 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 95 [2024-11-19 06:04:25,927 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 93 transitions, 220 flow. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:25,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:04:25,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 95 [2024-11-19 06:04:25,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:04:26,022 INFO L124 PetriNetUnfolderBase]: 116/707 cut-off events. [2024-11-19 06:04:26,022 INFO L125 PetriNetUnfolderBase]: For 100/145 co-relation queries the response was YES. [2024-11-19 06:04:26,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1005 conditions, 707 events. 116/707 cut-off events. For 100/145 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 4566 event pairs, 58 based on Foata normal form. 4/621 useless extension candidates. Maximal degree in co-relation 463. Up to 185 conditions per place. [2024-11-19 06:04:26,027 INFO L140 encePairwiseOnDemand]: 89/95 looper letters, 18 selfloop transitions, 5 changer transitions 0/101 dead transitions. [2024-11-19 06:04:26,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 101 transitions, 290 flow [2024-11-19 06:04:26,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:04:26,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:04:26,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 258 transitions. [2024-11-19 06:04:26,028 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9052631578947369 [2024-11-19 06:04:26,029 INFO L175 Difference]: Start difference. First operand has 102 places, 93 transitions, 220 flow. Second operand 3 states and 258 transitions. [2024-11-19 06:04:26,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 101 transitions, 290 flow [2024-11-19 06:04:26,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 101 transitions, 280 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 06:04:26,033 INFO L231 Difference]: Finished difference. Result has 101 places, 97 transitions, 248 flow [2024-11-19 06:04:26,033 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=248, PETRI_PLACES=101, PETRI_TRANSITIONS=97} [2024-11-19 06:04:26,034 INFO L277 CegarLoopForPetriNet]: 96 programPoint places, 5 predicate places. [2024-11-19 06:04:26,034 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 97 transitions, 248 flow [2024-11-19 06:04:26,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:26,035 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:04:26,035 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:04:26,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 06:04:26,035 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-19 06:04:26,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:04:26,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1750110091, now seen corresponding path program 1 times [2024-11-19 06:04:26,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:04:26,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011466611] [2024-11-19 06:04:26,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:26,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:04:26,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:26,102 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 06:04:26,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:04:26,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011466611] [2024-11-19 06:04:26,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011466611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:04:26,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:04:26,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 06:04:26,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026583592] [2024-11-19 06:04:26,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:04:26,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 06:04:26,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:04:26,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 06:04:26,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 06:04:26,137 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 95 [2024-11-19 06:04:26,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 97 transitions, 248 flow. Second operand has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:26,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:04:26,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 95 [2024-11-19 06:04:26,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:04:26,228 INFO L124 PetriNetUnfolderBase]: 63/580 cut-off events. [2024-11-19 06:04:26,229 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2024-11-19 06:04:26,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 810 conditions, 580 events. 63/580 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 3221 event pairs, 24 based on Foata normal form. 15/544 useless extension candidates. Maximal degree in co-relation 632. Up to 72 conditions per place. [2024-11-19 06:04:26,233 INFO L140 encePairwiseOnDemand]: 90/95 looper letters, 19 selfloop transitions, 4 changer transitions 3/108 dead transitions. [2024-11-19 06:04:26,234 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 108 transitions, 328 flow [2024-11-19 06:04:26,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 06:04:26,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 06:04:26,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 339 transitions. [2024-11-19 06:04:26,235 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8921052631578947 [2024-11-19 06:04:26,235 INFO L175 Difference]: Start difference. First operand has 101 places, 97 transitions, 248 flow. Second operand 4 states and 339 transitions. [2024-11-19 06:04:26,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 108 transitions, 328 flow [2024-11-19 06:04:26,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 108 transitions, 318 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:04:26,239 INFO L231 Difference]: Finished difference. Result has 103 places, 98 transitions, 254 flow [2024-11-19 06:04:26,240 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=254, PETRI_PLACES=103, PETRI_TRANSITIONS=98} [2024-11-19 06:04:26,241 INFO L277 CegarLoopForPetriNet]: 96 programPoint places, 7 predicate places. [2024-11-19 06:04:26,241 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 98 transitions, 254 flow [2024-11-19 06:04:26,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:26,242 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:04:26,242 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:04:26,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 06:04:26,242 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-19 06:04:26,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:04:26,242 INFO L85 PathProgramCache]: Analyzing trace with hash -37645542, now seen corresponding path program 1 times [2024-11-19 06:04:26,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:04:26,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937208454] [2024-11-19 06:04:26,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:26,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:04:26,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:26,362 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:04:26,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:04:26,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937208454] [2024-11-19 06:04:26,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937208454] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:04:26,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68594716] [2024-11-19 06:04:26,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:26,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:04:26,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:04:26,368 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 06:04:26,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 06:04:26,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:26,456 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 06:04:26,457 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:04:26,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:04:26,579 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 06:04:26,637 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:04:26,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [68594716] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 06:04:26,637 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 06:04:26,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-19 06:04:26,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702882107] [2024-11-19 06:04:26,637 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 06:04:26,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 06:04:26,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:04:26,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 06:04:26,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-19 06:04:26,799 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 95 [2024-11-19 06:04:26,800 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 98 transitions, 254 flow. Second operand has 13 states, 13 states have (on average 76.92307692307692) internal successors, (1000), 13 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:26,800 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:04:26,800 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 95 [2024-11-19 06:04:26,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:04:26,930 INFO L124 PetriNetUnfolderBase]: 81/421 cut-off events. [2024-11-19 06:04:26,930 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-11-19 06:04:26,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 628 conditions, 421 events. 81/421 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2118 event pairs, 1 based on Foata normal form. 15/414 useless extension candidates. Maximal degree in co-relation 620. Up to 56 conditions per place. [2024-11-19 06:04:26,933 INFO L140 encePairwiseOnDemand]: 89/95 looper letters, 28 selfloop transitions, 8 changer transitions 0/92 dead transitions. [2024-11-19 06:04:26,933 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 92 transitions, 290 flow [2024-11-19 06:04:26,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 06:04:26,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 06:04:26,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 788 transitions. [2024-11-19 06:04:26,935 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8294736842105264 [2024-11-19 06:04:26,935 INFO L175 Difference]: Start difference. First operand has 103 places, 98 transitions, 254 flow. Second operand 10 states and 788 transitions. [2024-11-19 06:04:26,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 92 transitions, 290 flow [2024-11-19 06:04:26,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 92 transitions, 289 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:04:26,938 INFO L231 Difference]: Finished difference. Result has 86 places, 72 transitions, 193 flow [2024-11-19 06:04:26,938 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=193, PETRI_PLACES=86, PETRI_TRANSITIONS=72} [2024-11-19 06:04:26,938 INFO L277 CegarLoopForPetriNet]: 96 programPoint places, -10 predicate places. [2024-11-19 06:04:26,939 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 72 transitions, 193 flow [2024-11-19 06:04:26,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 76.92307692307692) internal successors, (1000), 13 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:26,939 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:04:26,940 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:04:26,957 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 06:04:27,143 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,SelfDestructingSolverStorable10 [2024-11-19 06:04:27,144 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-19 06:04:27,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:04:27,145 INFO L85 PathProgramCache]: Analyzing trace with hash -678681733, now seen corresponding path program 1 times [2024-11-19 06:04:27,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:04:27,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430994351] [2024-11-19 06:04:27,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:27,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:04:27,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:27,183 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-19 06:04:27,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:04:27,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430994351] [2024-11-19 06:04:27,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430994351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:04:27,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:04:27,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:04:27,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570458131] [2024-11-19 06:04:27,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:04:27,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:04:27,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:04:27,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:04:27,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:04:27,197 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 95 [2024-11-19 06:04:27,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 72 transitions, 193 flow. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:27,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:04:27,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 95 [2024-11-19 06:04:27,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:04:27,234 INFO L124 PetriNetUnfolderBase]: 27/229 cut-off events. [2024-11-19 06:04:27,234 INFO L125 PetriNetUnfolderBase]: For 27/31 co-relation queries the response was YES. [2024-11-19 06:04:27,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 368 conditions, 229 events. 27/229 cut-off events. For 27/31 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 824 event pairs, 16 based on Foata normal form. 0/219 useless extension candidates. Maximal degree in co-relation 360. Up to 55 conditions per place. [2024-11-19 06:04:27,236 INFO L140 encePairwiseOnDemand]: 90/95 looper letters, 13 selfloop transitions, 5 changer transitions 0/77 dead transitions. [2024-11-19 06:04:27,236 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 77 transitions, 241 flow [2024-11-19 06:04:27,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:04:27,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:04:27,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 252 transitions. [2024-11-19 06:04:27,237 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8842105263157894 [2024-11-19 06:04:27,237 INFO L175 Difference]: Start difference. First operand has 86 places, 72 transitions, 193 flow. Second operand 3 states and 252 transitions. [2024-11-19 06:04:27,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 77 transitions, 241 flow [2024-11-19 06:04:27,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 77 transitions, 224 flow, removed 1 selfloop flow, removed 6 redundant places. [2024-11-19 06:04:27,239 INFO L231 Difference]: Finished difference. Result has 84 places, 75 transitions, 212 flow [2024-11-19 06:04:27,239 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=212, PETRI_PLACES=84, PETRI_TRANSITIONS=75} [2024-11-19 06:04:27,239 INFO L277 CegarLoopForPetriNet]: 96 programPoint places, -12 predicate places. [2024-11-19 06:04:27,239 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 75 transitions, 212 flow [2024-11-19 06:04:27,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:27,240 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:04:27,240 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:04:27,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 06:04:27,240 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-19 06:04:27,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:04:27,241 INFO L85 PathProgramCache]: Analyzing trace with hash 282277986, now seen corresponding path program 1 times [2024-11-19 06:04:27,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:04:27,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64033428] [2024-11-19 06:04:27,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:27,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:04:27,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:04:27,259 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:04:27,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:04:27,277 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:04:27,277 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:04:27,278 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2024-11-19 06:04:27,278 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-11-19 06:04:27,278 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2024-11-19 06:04:27,278 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-11-19 06:04:27,278 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-11-19 06:04:27,278 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-11-19 06:04:27,278 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-11-19 06:04:27,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 06:04:27,279 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:04:27,279 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:04:27,279 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-19 06:04:27,297 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-19 06:04:27,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 115 places, 113 transitions, 253 flow [2024-11-19 06:04:27,325 INFO L124 PetriNetUnfolderBase]: 20/331 cut-off events. [2024-11-19 06:04:27,325 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-19 06:04:27,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 356 conditions, 331 events. 20/331 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 928 event pairs, 1 based on Foata normal form. 0/284 useless extension candidates. Maximal degree in co-relation 205. Up to 16 conditions per place. [2024-11-19 06:04:27,326 INFO L82 GeneralOperation]: Start removeDead. Operand has 115 places, 113 transitions, 253 flow [2024-11-19 06:04:27,328 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 115 places, 113 transitions, 253 flow [2024-11-19 06:04:27,329 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:04:27,329 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;@64358636, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:04:27,329 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-19 06:04:27,331 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:04:27,331 INFO L124 PetriNetUnfolderBase]: 2/34 cut-off events. [2024-11-19 06:04:27,331 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:04:27,331 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:04:27,332 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] [2024-11-19 06:04:27,332 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-19 06:04:27,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:04:27,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1840619684, now seen corresponding path program 1 times [2024-11-19 06:04:27,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:04:27,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24738220] [2024-11-19 06:04:27,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:27,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:04:27,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:27,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:04:27,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:04:27,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24738220] [2024-11-19 06:04:27,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24738220] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:04:27,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:04:27,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 06:04:27,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298170161] [2024-11-19 06:04:27,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:04:27,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 06:04:27,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:04:27,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 06:04:27,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 06:04:27,398 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 113 [2024-11-19 06:04:27,399 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 113 transitions, 253 flow. Second operand has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:27,399 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:04:27,399 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 113 [2024-11-19 06:04:27,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:04:27,647 INFO L124 PetriNetUnfolderBase]: 413/2179 cut-off events. [2024-11-19 06:04:27,647 INFO L125 PetriNetUnfolderBase]: For 232/232 co-relation queries the response was YES. [2024-11-19 06:04:27,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2953 conditions, 2179 events. 413/2179 cut-off events. For 232/232 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 17472 event pairs, 232 based on Foata normal form. 70/2062 useless extension candidates. Maximal degree in co-relation 1327. Up to 496 conditions per place. [2024-11-19 06:04:27,665 INFO L140 encePairwiseOnDemand]: 106/113 looper letters, 24 selfloop transitions, 4 changer transitions 0/120 dead transitions. [2024-11-19 06:04:27,665 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 120 transitions, 323 flow [2024-11-19 06:04:27,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 06:04:27,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 06:04:27,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 400 transitions. [2024-11-19 06:04:27,667 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8849557522123894 [2024-11-19 06:04:27,667 INFO L175 Difference]: Start difference. First operand has 115 places, 113 transitions, 253 flow. Second operand 4 states and 400 transitions. [2024-11-19 06:04:27,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 120 transitions, 323 flow [2024-11-19 06:04:27,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 120 transitions, 323 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 06:04:27,670 INFO L231 Difference]: Finished difference. Result has 119 places, 112 transitions, 265 flow [2024-11-19 06:04:27,670 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=265, PETRI_PLACES=119, PETRI_TRANSITIONS=112} [2024-11-19 06:04:27,670 INFO L277 CegarLoopForPetriNet]: 115 programPoint places, 4 predicate places. [2024-11-19 06:04:27,671 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 112 transitions, 265 flow [2024-11-19 06:04:27,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:27,671 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:04:27,671 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] [2024-11-19 06:04:27,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 06:04:27,671 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-19 06:04:27,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:04:27,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1497087296, now seen corresponding path program 1 times [2024-11-19 06:04:27,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:04:27,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332598867] [2024-11-19 06:04:27,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:27,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:04:27,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:27,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:04:27,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:04:27,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332598867] [2024-11-19 06:04:27,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332598867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:04:27,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:04:27,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:04:27,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601743875] [2024-11-19 06:04:27,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:04:27,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 06:04:27,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:04:27,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 06:04:27,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 06:04:28,034 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 113 [2024-11-19 06:04:28,035 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 112 transitions, 265 flow. Second operand has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:28,035 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:04:28,035 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 113 [2024-11-19 06:04:28,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:04:28,542 INFO L124 PetriNetUnfolderBase]: 1292/3917 cut-off events. [2024-11-19 06:04:28,542 INFO L125 PetriNetUnfolderBase]: For 314/314 co-relation queries the response was YES. [2024-11-19 06:04:28,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6266 conditions, 3917 events. 1292/3917 cut-off events. For 314/314 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 34357 event pairs, 412 based on Foata normal form. 0/3662 useless extension candidates. Maximal degree in co-relation 2056. Up to 1483 conditions per place. [2024-11-19 06:04:28,569 INFO L140 encePairwiseOnDemand]: 107/113 looper letters, 50 selfloop transitions, 5 changer transitions 0/135 dead transitions. [2024-11-19 06:04:28,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 135 transitions, 421 flow [2024-11-19 06:04:28,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 06:04:28,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 06:04:28,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 535 transitions. [2024-11-19 06:04:28,571 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7890855457227138 [2024-11-19 06:04:28,571 INFO L175 Difference]: Start difference. First operand has 119 places, 112 transitions, 265 flow. Second operand 6 states and 535 transitions. [2024-11-19 06:04:28,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 135 transitions, 421 flow [2024-11-19 06:04:28,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 135 transitions, 415 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:04:28,575 INFO L231 Difference]: Finished difference. Result has 121 places, 111 transitions, 267 flow [2024-11-19 06:04:28,576 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=267, PETRI_PLACES=121, PETRI_TRANSITIONS=111} [2024-11-19 06:04:28,577 INFO L277 CegarLoopForPetriNet]: 115 programPoint places, 6 predicate places. [2024-11-19 06:04:28,577 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 111 transitions, 267 flow [2024-11-19 06:04:28,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:28,578 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:04:28,578 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] [2024-11-19 06:04:28,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 06:04:28,578 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-19 06:04:28,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:04:28,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1823324052, now seen corresponding path program 1 times [2024-11-19 06:04:28,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:04:28,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108864149] [2024-11-19 06:04:28,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:28,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:04:28,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:28,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:04:28,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:04:28,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108864149] [2024-11-19 06:04:28,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108864149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:04:28,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:04:28,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:04:28,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728186916] [2024-11-19 06:04:28,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:04:28,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:04:28,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:04:28,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:04:28,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:04:28,629 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 113 [2024-11-19 06:04:28,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 111 transitions, 267 flow. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:28,630 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:04:28,630 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 113 [2024-11-19 06:04:28,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:04:29,098 INFO L124 PetriNetUnfolderBase]: 1023/4159 cut-off events. [2024-11-19 06:04:29,098 INFO L125 PetriNetUnfolderBase]: For 676/938 co-relation queries the response was YES. [2024-11-19 06:04:29,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6131 conditions, 4159 events. 1023/4159 cut-off events. For 676/938 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 39795 event pairs, 581 based on Foata normal form. 7/3617 useless extension candidates. Maximal degree in co-relation 2112. Up to 1329 conditions per place. [2024-11-19 06:04:29,129 INFO L140 encePairwiseOnDemand]: 106/113 looper letters, 27 selfloop transitions, 6 changer transitions 0/124 dead transitions. [2024-11-19 06:04:29,129 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 124 transitions, 377 flow [2024-11-19 06:04:29,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:04:29,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:04:29,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 307 transitions. [2024-11-19 06:04:29,131 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9056047197640118 [2024-11-19 06:04:29,131 INFO L175 Difference]: Start difference. First operand has 121 places, 111 transitions, 267 flow. Second operand 3 states and 307 transitions. [2024-11-19 06:04:29,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 124 transitions, 377 flow [2024-11-19 06:04:29,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 124 transitions, 367 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 06:04:29,133 INFO L231 Difference]: Finished difference. Result has 120 places, 116 transitions, 303 flow [2024-11-19 06:04:29,134 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=303, PETRI_PLACES=120, PETRI_TRANSITIONS=116} [2024-11-19 06:04:29,135 INFO L277 CegarLoopForPetriNet]: 115 programPoint places, 5 predicate places. [2024-11-19 06:04:29,135 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 116 transitions, 303 flow [2024-11-19 06:04:29,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:29,135 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:04:29,136 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:04:29,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 06:04:29,136 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-19 06:04:29,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:04:29,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1406205556, now seen corresponding path program 1 times [2024-11-19 06:04:29,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:04:29,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445976964] [2024-11-19 06:04:29,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:29,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:04:29,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:29,189 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 06:04:29,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:04:29,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445976964] [2024-11-19 06:04:29,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445976964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:04:29,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:04:29,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 06:04:29,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841991412] [2024-11-19 06:04:29,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:04:29,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 06:04:29,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:04:29,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 06:04:29,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 06:04:29,220 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 113 [2024-11-19 06:04:29,220 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 116 transitions, 303 flow. Second operand has 4 states, 4 states have (on average 93.5) internal successors, (374), 4 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:29,220 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:04:29,220 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 113 [2024-11-19 06:04:29,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:04:29,576 INFO L124 PetriNetUnfolderBase]: 662/3141 cut-off events. [2024-11-19 06:04:29,576 INFO L125 PetriNetUnfolderBase]: For 430/450 co-relation queries the response was YES. [2024-11-19 06:04:29,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4682 conditions, 3141 events. 662/3141 cut-off events. For 430/450 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 28237 event pairs, 320 based on Foata normal form. 63/2852 useless extension candidates. Maximal degree in co-relation 3788. Up to 540 conditions per place. [2024-11-19 06:04:29,600 INFO L140 encePairwiseOnDemand]: 108/113 looper letters, 31 selfloop transitions, 4 changer transitions 0/132 dead transitions. [2024-11-19 06:04:29,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 132 transitions, 414 flow [2024-11-19 06:04:29,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 06:04:29,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 06:04:29,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 404 transitions. [2024-11-19 06:04:29,604 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8938053097345132 [2024-11-19 06:04:29,604 INFO L175 Difference]: Start difference. First operand has 120 places, 116 transitions, 303 flow. Second operand 4 states and 404 transitions. [2024-11-19 06:04:29,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 132 transitions, 414 flow [2024-11-19 06:04:29,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 132 transitions, 402 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:04:29,608 INFO L231 Difference]: Finished difference. Result has 122 places, 117 transitions, 307 flow [2024-11-19 06:04:29,608 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=291, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=307, PETRI_PLACES=122, PETRI_TRANSITIONS=117} [2024-11-19 06:04:29,608 INFO L277 CegarLoopForPetriNet]: 115 programPoint places, 7 predicate places. [2024-11-19 06:04:29,609 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 117 transitions, 307 flow [2024-11-19 06:04:29,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.5) internal successors, (374), 4 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:29,609 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:04:29,610 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:04:29,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 06:04:29,610 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-19 06:04:29,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:04:29,610 INFO L85 PathProgramCache]: Analyzing trace with hash -117961782, now seen corresponding path program 1 times [2024-11-19 06:04:29,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:04:29,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250995761] [2024-11-19 06:04:29,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:29,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:04:29,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:29,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:04:29,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:04:29,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250995761] [2024-11-19 06:04:29,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250995761] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:04:29,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881481445] [2024-11-19 06:04:29,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:29,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:04:29,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:04:29,698 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 06:04:29,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 06:04:29,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:29,781 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 06:04:29,783 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:04:29,875 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:04:29,875 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 06:04:29,928 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:04:29,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [881481445] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 06:04:29,928 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 06:04:29,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-19 06:04:29,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427424634] [2024-11-19 06:04:29,929 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 06:04:29,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 06:04:29,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:04:29,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 06:04:29,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-19 06:04:30,099 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 113 [2024-11-19 06:04:30,100 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 117 transitions, 307 flow. Second operand has 13 states, 13 states have (on average 90.92307692307692) internal successors, (1182), 13 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:30,100 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:04:30,100 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 113 [2024-11-19 06:04:30,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:04:30,705 INFO L124 PetriNetUnfolderBase]: 1016/4568 cut-off events. [2024-11-19 06:04:30,705 INFO L125 PetriNetUnfolderBase]: For 586/586 co-relation queries the response was YES. [2024-11-19 06:04:30,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6839 conditions, 4568 events. 1016/4568 cut-off events. For 586/586 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 43742 event pairs, 156 based on Foata normal form. 15/4027 useless extension candidates. Maximal degree in co-relation 3793. Up to 749 conditions per place. [2024-11-19 06:04:30,738 INFO L140 encePairwiseOnDemand]: 105/113 looper letters, 50 selfloop transitions, 11 changer transitions 0/155 dead transitions. [2024-11-19 06:04:30,738 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 155 transitions, 507 flow [2024-11-19 06:04:30,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 06:04:30,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 06:04:30,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 953 transitions. [2024-11-19 06:04:30,741 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8433628318584071 [2024-11-19 06:04:30,741 INFO L175 Difference]: Start difference. First operand has 122 places, 117 transitions, 307 flow. Second operand 10 states and 953 transitions. [2024-11-19 06:04:30,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 155 transitions, 507 flow [2024-11-19 06:04:30,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 155 transitions, 501 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:04:30,748 INFO L231 Difference]: Finished difference. Result has 132 places, 123 transitions, 357 flow [2024-11-19 06:04:30,748 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=357, PETRI_PLACES=132, PETRI_TRANSITIONS=123} [2024-11-19 06:04:30,749 INFO L277 CegarLoopForPetriNet]: 115 programPoint places, 17 predicate places. [2024-11-19 06:04:30,749 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 123 transitions, 357 flow [2024-11-19 06:04:30,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 90.92307692307692) internal successors, (1182), 13 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:30,750 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:04:30,750 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:04:30,768 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 06:04:30,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-19 06:04:30,951 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-19 06:04:30,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:04:30,952 INFO L85 PathProgramCache]: Analyzing trace with hash -557545285, now seen corresponding path program 1 times [2024-11-19 06:04:30,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:04:30,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431875385] [2024-11-19 06:04:30,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:30,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:04:30,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:30,995 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-19 06:04:30,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:04:30,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431875385] [2024-11-19 06:04:30,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431875385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:04:30,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:04:30,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:04:30,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765269734] [2024-11-19 06:04:30,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:04:30,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:04:30,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:04:30,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:04:30,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:04:31,016 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 113 [2024-11-19 06:04:31,016 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 123 transitions, 357 flow. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:31,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:04:31,017 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 113 [2024-11-19 06:04:31,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:04:31,515 INFO L124 PetriNetUnfolderBase]: 916/3884 cut-off events. [2024-11-19 06:04:31,515 INFO L125 PetriNetUnfolderBase]: For 1212/1375 co-relation queries the response was YES. [2024-11-19 06:04:31,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6672 conditions, 3884 events. 916/3884 cut-off events. For 1212/1375 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 36926 event pairs, 539 based on Foata normal form. 4/3502 useless extension candidates. Maximal degree in co-relation 6001. Up to 1192 conditions per place. [2024-11-19 06:04:31,546 INFO L140 encePairwiseOnDemand]: 106/113 looper letters, 28 selfloop transitions, 9 changer transitions 0/137 dead transitions. [2024-11-19 06:04:31,546 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 137 transitions, 482 flow [2024-11-19 06:04:31,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:04:31,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:04:31,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 306 transitions. [2024-11-19 06:04:31,548 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9026548672566371 [2024-11-19 06:04:31,548 INFO L175 Difference]: Start difference. First operand has 132 places, 123 transitions, 357 flow. Second operand 3 states and 306 transitions. [2024-11-19 06:04:31,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 137 transitions, 482 flow [2024-11-19 06:04:31,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 137 transitions, 474 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-19 06:04:31,555 INFO L231 Difference]: Finished difference. Result has 134 places, 130 transitions, 425 flow [2024-11-19 06:04:31,556 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=425, PETRI_PLACES=134, PETRI_TRANSITIONS=130} [2024-11-19 06:04:31,556 INFO L277 CegarLoopForPetriNet]: 115 programPoint places, 19 predicate places. [2024-11-19 06:04:31,556 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 130 transitions, 425 flow [2024-11-19 06:04:31,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:31,557 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:04:31,557 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:04:31,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 06:04:31,557 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-19 06:04:31,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:04:31,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1054548099, now seen corresponding path program 1 times [2024-11-19 06:04:31,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:04:31,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731106908] [2024-11-19 06:04:31,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:31,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:04:31,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:31,635 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-19 06:04:31,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:04:31,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731106908] [2024-11-19 06:04:31,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731106908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:04:31,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:04:31,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 06:04:31,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024607580] [2024-11-19 06:04:31,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:04:31,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:04:31,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:04:31,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:04:31,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:04:31,645 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 113 [2024-11-19 06:04:31,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 130 transitions, 425 flow. Second operand has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:31,646 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:04:31,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 113 [2024-11-19 06:04:31,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:04:31,786 INFO L124 PetriNetUnfolderBase]: 98/1329 cut-off events. [2024-11-19 06:04:31,786 INFO L125 PetriNetUnfolderBase]: For 334/378 co-relation queries the response was YES. [2024-11-19 06:04:31,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1999 conditions, 1329 events. 98/1329 cut-off events. For 334/378 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 9813 event pairs, 26 based on Foata normal form. 20/1238 useless extension candidates. Maximal degree in co-relation 896. Up to 101 conditions per place. [2024-11-19 06:04:31,794 INFO L140 encePairwiseOnDemand]: 107/113 looper letters, 12 selfloop transitions, 6 changer transitions 0/129 dead transitions. [2024-11-19 06:04:31,794 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 129 transitions, 446 flow [2024-11-19 06:04:31,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:04:31,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:04:31,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 315 transitions. [2024-11-19 06:04:31,795 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9292035398230089 [2024-11-19 06:04:31,796 INFO L175 Difference]: Start difference. First operand has 134 places, 130 transitions, 425 flow. Second operand 3 states and 315 transitions. [2024-11-19 06:04:31,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 129 transitions, 446 flow [2024-11-19 06:04:31,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 129 transitions, 434 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-19 06:04:31,799 INFO L231 Difference]: Finished difference. Result has 134 places, 124 transitions, 379 flow [2024-11-19 06:04:31,800 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=379, PETRI_PLACES=134, PETRI_TRANSITIONS=124} [2024-11-19 06:04:31,800 INFO L277 CegarLoopForPetriNet]: 115 programPoint places, 19 predicate places. [2024-11-19 06:04:31,800 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 124 transitions, 379 flow [2024-11-19 06:04:31,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:31,801 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:04:31,801 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-19 06:04:31,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 06:04:31,801 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-19 06:04:31,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:04:31,801 INFO L85 PathProgramCache]: Analyzing trace with hash -2110657165, now seen corresponding path program 1 times [2024-11-19 06:04:31,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:04:31,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789653206] [2024-11-19 06:04:31,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:31,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:04:31,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:31,842 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-19 06:04:31,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:04:31,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789653206] [2024-11-19 06:04:31,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789653206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:04:31,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:04:31,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:04:31,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854456843] [2024-11-19 06:04:31,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:04:31,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:04:31,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:04:31,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:04:31,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:04:31,859 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 113 [2024-11-19 06:04:31,860 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 124 transitions, 379 flow. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:31,860 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:04:31,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 113 [2024-11-19 06:04:31,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:04:32,031 INFO L124 PetriNetUnfolderBase]: 177/1401 cut-off events. [2024-11-19 06:04:32,031 INFO L125 PetriNetUnfolderBase]: For 698/746 co-relation queries the response was YES. [2024-11-19 06:04:32,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2462 conditions, 1401 events. 177/1401 cut-off events. For 698/746 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 10818 event pairs, 135 based on Foata normal form. 3/1290 useless extension candidates. Maximal degree in co-relation 2143. Up to 336 conditions per place. [2024-11-19 06:04:32,037 INFO L140 encePairwiseOnDemand]: 108/113 looper letters, 23 selfloop transitions, 4 changer transitions 0/129 dead transitions. [2024-11-19 06:04:32,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 129 transitions, 453 flow [2024-11-19 06:04:32,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:04:32,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:04:32,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 299 transitions. [2024-11-19 06:04:32,039 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8820058997050148 [2024-11-19 06:04:32,039 INFO L175 Difference]: Start difference. First operand has 134 places, 124 transitions, 379 flow. Second operand 3 states and 299 transitions. [2024-11-19 06:04:32,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 129 transitions, 453 flow [2024-11-19 06:04:32,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 129 transitions, 447 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:04:32,043 INFO L231 Difference]: Finished difference. Result has 137 places, 127 transitions, 407 flow [2024-11-19 06:04:32,043 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=373, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=407, PETRI_PLACES=137, PETRI_TRANSITIONS=127} [2024-11-19 06:04:32,043 INFO L277 CegarLoopForPetriNet]: 115 programPoint places, 22 predicate places. [2024-11-19 06:04:32,044 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 127 transitions, 407 flow [2024-11-19 06:04:32,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:32,044 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:04:32,044 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-19 06:04:32,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-19 06:04:32,045 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-19 06:04:32,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:04:32,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1663829781, now seen corresponding path program 1 times [2024-11-19 06:04:32,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:04:32,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40483487] [2024-11-19 06:04:32,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:32,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:04:32,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:32,210 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:04:32,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:04:32,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40483487] [2024-11-19 06:04:32,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40483487] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:04:32,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484967810] [2024-11-19 06:04:32,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:32,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:04:32,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:04:32,213 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 06:04:32,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 06:04:32,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:32,320 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 06:04:32,323 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:04:32,541 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:04:32,541 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 06:04:32,668 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:04:32,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484967810] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 06:04:32,668 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 06:04:32,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 19 [2024-11-19 06:04:32,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545182197] [2024-11-19 06:04:32,669 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 06:04:32,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-19 06:04:32,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:04:32,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-19 06:04:32,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-19 06:04:32,886 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 113 [2024-11-19 06:04:32,888 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 127 transitions, 407 flow. Second operand has 19 states, 19 states have (on average 91.21052631578948) internal successors, (1733), 19 states have internal predecessors, (1733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:32,890 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:04:32,890 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 113 [2024-11-19 06:04:32,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:04:33,111 INFO L124 PetriNetUnfolderBase]: 151/828 cut-off events. [2024-11-19 06:04:33,111 INFO L125 PetriNetUnfolderBase]: For 338/338 co-relation queries the response was YES. [2024-11-19 06:04:33,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1520 conditions, 828 events. 151/828 cut-off events. For 338/338 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 4892 event pairs, 6 based on Foata normal form. 20/829 useless extension candidates. Maximal degree in co-relation 1505. Up to 88 conditions per place. [2024-11-19 06:04:33,115 INFO L140 encePairwiseOnDemand]: 107/113 looper letters, 50 selfloop transitions, 11 changer transitions 0/125 dead transitions. [2024-11-19 06:04:33,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 125 transitions, 502 flow [2024-11-19 06:04:33,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 06:04:33,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-19 06:04:33,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1219 transitions. [2024-11-19 06:04:33,119 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8298162014976175 [2024-11-19 06:04:33,119 INFO L175 Difference]: Start difference. First operand has 137 places, 127 transitions, 407 flow. Second operand 13 states and 1219 transitions. [2024-11-19 06:04:33,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 125 transitions, 502 flow [2024-11-19 06:04:33,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 125 transitions, 463 flow, removed 8 selfloop flow, removed 11 redundant places. [2024-11-19 06:04:33,122 INFO L231 Difference]: Finished difference. Result has 110 places, 87 transitions, 247 flow [2024-11-19 06:04:33,122 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=247, PETRI_PLACES=110, PETRI_TRANSITIONS=87} [2024-11-19 06:04:33,122 INFO L277 CegarLoopForPetriNet]: 115 programPoint places, -5 predicate places. [2024-11-19 06:04:33,123 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 87 transitions, 247 flow [2024-11-19 06:04:33,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 91.21052631578948) internal successors, (1733), 19 states have internal predecessors, (1733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:33,123 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:04:33,124 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:04:33,141 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-19 06:04:33,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:04:33,324 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-19 06:04:33,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:04:33,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1191937286, now seen corresponding path program 1 times [2024-11-19 06:04:33,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:04:33,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52691945] [2024-11-19 06:04:33,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:33,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:04:33,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:04:33,346 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:04:33,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:04:33,367 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:04:33,367 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:04:33,367 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2024-11-19 06:04:33,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2024-11-19 06:04:33,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2024-11-19 06:04:33,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2024-11-19 06:04:33,368 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2024-11-19 06:04:33,368 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2024-11-19 06:04:33,368 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2024-11-19 06:04:33,368 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2024-11-19 06:04:33,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-19 06:04:33,368 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:04:33,369 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:04:33,369 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-19 06:04:33,389 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-19 06:04:33,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 131 transitions, 302 flow [2024-11-19 06:04:33,440 INFO L124 PetriNetUnfolderBase]: 42/565 cut-off events. [2024-11-19 06:04:33,440 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-11-19 06:04:33,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 616 conditions, 565 events. 42/565 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2066 event pairs, 6 based on Foata normal form. 0/482 useless extension candidates. Maximal degree in co-relation 351. Up to 32 conditions per place. [2024-11-19 06:04:33,442 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 131 transitions, 302 flow [2024-11-19 06:04:33,445 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 131 transitions, 302 flow [2024-11-19 06:04:33,445 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:04:33,446 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;@64358636, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:04:33,446 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-19 06:04:33,447 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:04:33,447 INFO L124 PetriNetUnfolderBase]: 2/34 cut-off events. [2024-11-19 06:04:33,448 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:04:33,448 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:04:33,448 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] [2024-11-19 06:04:33,448 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-19 06:04:33,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:04:33,448 INFO L85 PathProgramCache]: Analyzing trace with hash -2029671228, now seen corresponding path program 1 times [2024-11-19 06:04:33,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:04:33,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092332807] [2024-11-19 06:04:33,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:33,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:04:33,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:33,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:04:33,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:04:33,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092332807] [2024-11-19 06:04:33,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092332807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:04:33,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:04:33,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 06:04:33,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28527967] [2024-11-19 06:04:33,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:04:33,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 06:04:33,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:04:33,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 06:04:33,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 06:04:33,508 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 131 [2024-11-19 06:04:33,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 131 transitions, 302 flow. Second operand has 4 states, 4 states have (on average 107.25) internal successors, (429), 4 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:33,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:04:33,509 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 131 [2024-11-19 06:04:33,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:04:34,592 INFO L124 PetriNetUnfolderBase]: 2017/8193 cut-off events. [2024-11-19 06:04:34,593 INFO L125 PetriNetUnfolderBase]: For 1213/1213 co-relation queries the response was YES. [2024-11-19 06:04:34,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11594 conditions, 8193 events. 2017/8193 cut-off events. For 1213/1213 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 83706 event pairs, 1191 based on Foata normal form. 286/7767 useless extension candidates. Maximal degree in co-relation 5267. Up to 2119 conditions per place. [2024-11-19 06:04:34,656 INFO L140 encePairwiseOnDemand]: 124/131 looper letters, 30 selfloop transitions, 4 changer transitions 0/140 dead transitions. [2024-11-19 06:04:34,656 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 140 transitions, 388 flow [2024-11-19 06:04:34,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 06:04:34,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 06:04:34,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 462 transitions. [2024-11-19 06:04:34,658 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8816793893129771 [2024-11-19 06:04:34,658 INFO L175 Difference]: Start difference. First operand has 134 places, 131 transitions, 302 flow. Second operand 4 states and 462 transitions. [2024-11-19 06:04:34,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 140 transitions, 388 flow [2024-11-19 06:04:34,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 140 transitions, 388 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 06:04:34,662 INFO L231 Difference]: Finished difference. Result has 138 places, 130 transitions, 314 flow [2024-11-19 06:04:34,662 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=314, PETRI_PLACES=138, PETRI_TRANSITIONS=130} [2024-11-19 06:04:34,662 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 4 predicate places. [2024-11-19 06:04:34,663 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 130 transitions, 314 flow [2024-11-19 06:04:34,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 107.25) internal successors, (429), 4 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:34,663 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:04:34,663 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] [2024-11-19 06:04:34,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-19 06:04:34,664 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-19 06:04:34,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:04:34,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1358511811, now seen corresponding path program 1 times [2024-11-19 06:04:34,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:04:34,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89188296] [2024-11-19 06:04:34,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:34,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:04:34,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:34,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:04:34,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:04:34,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89188296] [2024-11-19 06:04:34,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89188296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:04:34,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:04:34,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:04:34,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716570178] [2024-11-19 06:04:34,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:04:34,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 06:04:34,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:04:34,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 06:04:34,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 06:04:34,902 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 131 [2024-11-19 06:04:34,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 130 transitions, 314 flow. Second operand has 6 states, 6 states have (on average 95.5) internal successors, (573), 6 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:34,903 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:04:34,903 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 131 [2024-11-19 06:04:34,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:04:36,520 INFO L124 PetriNetUnfolderBase]: 6248/15570 cut-off events. [2024-11-19 06:04:36,520 INFO L125 PetriNetUnfolderBase]: For 1593/1593 co-relation queries the response was YES. [2024-11-19 06:04:36,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25646 conditions, 15570 events. 6248/15570 cut-off events. For 1593/1593 co-relation queries the response was YES. Maximal size of possible extension queue 637. Compared 158157 event pairs, 808 based on Foata normal form. 0/14524 useless extension candidates. Maximal degree in co-relation 23371. Up to 6781 conditions per place. [2024-11-19 06:04:36,638 INFO L140 encePairwiseOnDemand]: 125/131 looper letters, 62 selfloop transitions, 5 changer transitions 0/161 dead transitions. [2024-11-19 06:04:36,638 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 161 transitions, 510 flow [2024-11-19 06:04:36,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 06:04:36,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 06:04:36,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 631 transitions. [2024-11-19 06:04:36,641 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8027989821882952 [2024-11-19 06:04:36,641 INFO L175 Difference]: Start difference. First operand has 138 places, 130 transitions, 314 flow. Second operand 6 states and 631 transitions. [2024-11-19 06:04:36,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 161 transitions, 510 flow [2024-11-19 06:04:36,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 161 transitions, 504 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:04:36,662 INFO L231 Difference]: Finished difference. Result has 140 places, 129 transitions, 316 flow [2024-11-19 06:04:36,662 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=316, PETRI_PLACES=140, PETRI_TRANSITIONS=129} [2024-11-19 06:04:36,663 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 6 predicate places. [2024-11-19 06:04:36,663 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 129 transitions, 316 flow [2024-11-19 06:04:36,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 95.5) internal successors, (573), 6 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:36,663 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:04:36,664 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] [2024-11-19 06:04:36,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-19 06:04:36,664 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-19 06:04:36,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:04:36,664 INFO L85 PathProgramCache]: Analyzing trace with hash -573880425, now seen corresponding path program 1 times [2024-11-19 06:04:36,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:04:36,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554208070] [2024-11-19 06:04:36,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:36,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:04:36,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:36,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:04:36,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:04:36,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554208070] [2024-11-19 06:04:36,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554208070] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:04:36,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:04:36,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:04:36,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089005698] [2024-11-19 06:04:36,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:04:36,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:04:36,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:04:36,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:04:36,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:04:36,715 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 131 [2024-11-19 06:04:36,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 129 transitions, 316 flow. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:36,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:04:36,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 131 [2024-11-19 06:04:36,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:04:39,100 INFO L124 PetriNetUnfolderBase]: 7160/22223 cut-off events. [2024-11-19 06:04:39,100 INFO L125 PetriNetUnfolderBase]: For 4772/5286 co-relation queries the response was YES. [2024-11-19 06:04:39,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34212 conditions, 22223 events. 7160/22223 cut-off events. For 4772/5286 co-relation queries the response was YES. Maximal size of possible extension queue 860. Compared 266140 event pairs, 5035 based on Foata normal form. 10/19775 useless extension candidates. Maximal degree in co-relation 27383. Up to 8447 conditions per place. [2024-11-19 06:04:39,502 INFO L140 encePairwiseOnDemand]: 123/131 looper letters, 36 selfloop transitions, 7 changer transitions 0/147 dead transitions. [2024-11-19 06:04:39,502 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 147 transitions, 468 flow [2024-11-19 06:04:39,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:04:39,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:04:39,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 356 transitions. [2024-11-19 06:04:39,504 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.905852417302799 [2024-11-19 06:04:39,504 INFO L175 Difference]: Start difference. First operand has 140 places, 129 transitions, 316 flow. Second operand 3 states and 356 transitions. [2024-11-19 06:04:39,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 147 transitions, 468 flow [2024-11-19 06:04:39,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 147 transitions, 458 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 06:04:39,511 INFO L231 Difference]: Finished difference. Result has 139 places, 135 transitions, 360 flow [2024-11-19 06:04:39,511 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=360, PETRI_PLACES=139, PETRI_TRANSITIONS=135} [2024-11-19 06:04:39,512 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 5 predicate places. [2024-11-19 06:04:39,512 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 135 transitions, 360 flow [2024-11-19 06:04:39,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:39,512 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:04:39,512 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:04:39,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-19 06:04:39,513 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-19 06:04:39,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:04:39,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1468387551, now seen corresponding path program 1 times [2024-11-19 06:04:39,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:04:39,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085186720] [2024-11-19 06:04:39,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:39,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:04:39,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:39,556 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 06:04:39,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:04:39,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085186720] [2024-11-19 06:04:39,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085186720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:04:39,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:04:39,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 06:04:39,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448355054] [2024-11-19 06:04:39,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:04:39,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 06:04:39,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:04:39,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 06:04:39,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 06:04:39,589 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 131 [2024-11-19 06:04:39,590 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 135 transitions, 360 flow. Second operand has 4 states, 4 states have (on average 107.5) internal successors, (430), 4 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:39,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:04:39,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 131 [2024-11-19 06:04:39,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:04:41,373 INFO L124 PetriNetUnfolderBase]: 4968/18140 cut-off events. [2024-11-19 06:04:41,373 INFO L125 PetriNetUnfolderBase]: For 2733/2797 co-relation queries the response was YES. [2024-11-19 06:04:41,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28074 conditions, 18140 events. 4968/18140 cut-off events. For 2733/2797 co-relation queries the response was YES. Maximal size of possible extension queue 718. Compared 220363 event pairs, 2078 based on Foata normal form. 259/16274 useless extension candidates. Maximal degree in co-relation 22754. Up to 3640 conditions per place. [2024-11-19 06:04:41,519 INFO L140 encePairwiseOnDemand]: 126/131 looper letters, 40 selfloop transitions, 4 changer transitions 0/156 dead transitions. [2024-11-19 06:04:41,519 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 156 transitions, 502 flow [2024-11-19 06:04:41,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 06:04:41,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 06:04:41,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 469 transitions. [2024-11-19 06:04:41,521 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8950381679389313 [2024-11-19 06:04:41,521 INFO L175 Difference]: Start difference. First operand has 139 places, 135 transitions, 360 flow. Second operand 4 states and 469 transitions. [2024-11-19 06:04:41,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 156 transitions, 502 flow [2024-11-19 06:04:41,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 156 transitions, 488 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:04:41,537 INFO L231 Difference]: Finished difference. Result has 141 places, 136 transitions, 362 flow [2024-11-19 06:04:41,537 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=362, PETRI_PLACES=141, PETRI_TRANSITIONS=136} [2024-11-19 06:04:41,538 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 7 predicate places. [2024-11-19 06:04:41,538 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 136 transitions, 362 flow [2024-11-19 06:04:41,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 107.5) internal successors, (430), 4 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:41,538 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:04:41,538 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:04:41,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-19 06:04:41,540 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-19 06:04:41,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:04:41,540 INFO L85 PathProgramCache]: Analyzing trace with hash -467496006, now seen corresponding path program 1 times [2024-11-19 06:04:41,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:04:41,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027698390] [2024-11-19 06:04:41,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:41,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:04:41,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:41,623 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:04:41,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:04:41,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027698390] [2024-11-19 06:04:41,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027698390] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:04:41,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146468498] [2024-11-19 06:04:41,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:41,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:04:41,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:04:41,626 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 06:04:41,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 06:04:41,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:41,723 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 06:04:41,727 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:04:41,815 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:04:41,815 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 06:04:41,878 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:04:41,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [146468498] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 06:04:41,879 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 06:04:41,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-19 06:04:41,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897960445] [2024-11-19 06:04:41,879 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 06:04:41,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 06:04:41,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:04:41,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 06:04:41,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-19 06:04:42,015 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 131 [2024-11-19 06:04:42,016 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 136 transitions, 362 flow. Second operand has 13 states, 13 states have (on average 104.92307692307692) internal successors, (1364), 13 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:42,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:04:42,017 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 131 [2024-11-19 06:04:42,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:04:44,704 INFO L124 PetriNetUnfolderBase]: 6978/24686 cut-off events. [2024-11-19 06:04:44,704 INFO L125 PetriNetUnfolderBase]: For 3252/3252 co-relation queries the response was YES. [2024-11-19 06:04:44,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38232 conditions, 24686 events. 6978/24686 cut-off events. For 3252/3252 co-relation queries the response was YES. Maximal size of possible extension queue 837. Compared 308206 event pairs, 1505 based on Foata normal form. 15/21224 useless extension candidates. Maximal degree in co-relation 18423. Up to 4886 conditions per place. [2024-11-19 06:04:44,874 INFO L140 encePairwiseOnDemand]: 123/131 looper letters, 58 selfloop transitions, 11 changer transitions 0/178 dead transitions. [2024-11-19 06:04:44,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 178 transitions, 586 flow [2024-11-19 06:04:44,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 06:04:44,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 06:04:44,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1101 transitions. [2024-11-19 06:04:44,877 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8404580152671756 [2024-11-19 06:04:44,877 INFO L175 Difference]: Start difference. First operand has 141 places, 136 transitions, 362 flow. Second operand 10 states and 1101 transitions. [2024-11-19 06:04:44,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 178 transitions, 586 flow [2024-11-19 06:04:44,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 178 transitions, 580 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:04:44,900 INFO L231 Difference]: Finished difference. Result has 151 places, 142 transitions, 412 flow [2024-11-19 06:04:44,901 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=412, PETRI_PLACES=151, PETRI_TRANSITIONS=142} [2024-11-19 06:04:44,901 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 17 predicate places. [2024-11-19 06:04:44,901 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 142 transitions, 412 flow [2024-11-19 06:04:44,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 104.92307692307692) internal successors, (1364), 13 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:44,902 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:04:44,902 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:04:44,914 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-19 06:04:45,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-19 06:04:45,103 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-19 06:04:45,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:04:45,103 INFO L85 PathProgramCache]: Analyzing trace with hash 21450891, now seen corresponding path program 1 times [2024-11-19 06:04:45,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:04:45,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982732112] [2024-11-19 06:04:45,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:45,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:04:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:45,143 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-19 06:04:45,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:04:45,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982732112] [2024-11-19 06:04:45,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982732112] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:04:45,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:04:45,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:04:45,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966915831] [2024-11-19 06:04:45,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:04:45,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:04:45,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:04:45,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:04:45,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:04:45,165 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 131 [2024-11-19 06:04:45,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 142 transitions, 412 flow. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:45,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:04:45,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 131 [2024-11-19 06:04:45,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:04:49,013 INFO L124 PetriNetUnfolderBase]: 8594/30099 cut-off events. [2024-11-19 06:04:49,013 INFO L125 PetriNetUnfolderBase]: For 11078/13067 co-relation queries the response was YES. [2024-11-19 06:04:49,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51770 conditions, 30099 events. 8594/30099 cut-off events. For 11078/13067 co-relation queries the response was YES. Maximal size of possible extension queue 1084. Compared 393624 event pairs, 4943 based on Foata normal form. 35/26769 useless extension candidates. Maximal degree in co-relation 16490. Up to 9810 conditions per place. [2024-11-19 06:04:49,282 INFO L140 encePairwiseOnDemand]: 123/131 looper letters, 38 selfloop transitions, 11 changer transitions 0/162 dead transitions. [2024-11-19 06:04:49,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 162 transitions, 589 flow [2024-11-19 06:04:49,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:04:49,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:04:49,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 355 transitions. [2024-11-19 06:04:49,284 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9033078880407125 [2024-11-19 06:04:49,284 INFO L175 Difference]: Start difference. First operand has 151 places, 142 transitions, 412 flow. Second operand 3 states and 355 transitions. [2024-11-19 06:04:49,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 162 transitions, 589 flow [2024-11-19 06:04:49,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 162 transitions, 581 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-19 06:04:49,300 INFO L231 Difference]: Finished difference. Result has 153 places, 151 transitions, 500 flow [2024-11-19 06:04:49,301 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=500, PETRI_PLACES=153, PETRI_TRANSITIONS=151} [2024-11-19 06:04:49,301 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 19 predicate places. [2024-11-19 06:04:49,302 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 151 transitions, 500 flow [2024-11-19 06:04:49,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:49,302 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:04:49,302 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:04:49,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-19 06:04:49,303 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-19 06:04:49,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:04:49,303 INFO L85 PathProgramCache]: Analyzing trace with hash 856418559, now seen corresponding path program 1 times [2024-11-19 06:04:49,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:04:49,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156461089] [2024-11-19 06:04:49,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:49,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:04:49,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:49,380 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-19 06:04:49,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:04:49,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156461089] [2024-11-19 06:04:49,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156461089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:04:49,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:04:49,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 06:04:49,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255905413] [2024-11-19 06:04:49,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:04:49,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:04:49,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:04:49,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:04:49,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:04:49,394 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 131 [2024-11-19 06:04:49,395 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 151 transitions, 500 flow. Second operand has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:49,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:04:49,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 131 [2024-11-19 06:04:49,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:04:50,228 INFO L124 PetriNetUnfolderBase]: 530/4989 cut-off events. [2024-11-19 06:04:50,228 INFO L125 PetriNetUnfolderBase]: For 1503/1677 co-relation queries the response was YES. [2024-11-19 06:04:50,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7637 conditions, 4989 events. 530/4989 cut-off events. For 1503/1677 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 54175 event pairs, 194 based on Foata normal form. 140/4670 useless extension candidates. Maximal degree in co-relation 2862. Up to 422 conditions per place. [2024-11-19 06:04:50,254 INFO L140 encePairwiseOnDemand]: 123/131 looper letters, 16 selfloop transitions, 8 changer transitions 0/149 dead transitions. [2024-11-19 06:04:50,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 149 transitions, 527 flow [2024-11-19 06:04:50,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:04:50,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:04:50,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 364 transitions. [2024-11-19 06:04:50,256 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.926208651399491 [2024-11-19 06:04:50,256 INFO L175 Difference]: Start difference. First operand has 153 places, 151 transitions, 500 flow. Second operand 3 states and 364 transitions. [2024-11-19 06:04:50,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 149 transitions, 527 flow [2024-11-19 06:04:50,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 149 transitions, 515 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-19 06:04:50,265 INFO L231 Difference]: Finished difference. Result has 153 places, 142 transitions, 436 flow [2024-11-19 06:04:50,265 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=420, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=436, PETRI_PLACES=153, PETRI_TRANSITIONS=142} [2024-11-19 06:04:50,266 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 19 predicate places. [2024-11-19 06:04:50,266 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 142 transitions, 436 flow [2024-11-19 06:04:50,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:50,266 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:04:50,266 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-19 06:04:50,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-19 06:04:50,267 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-19 06:04:50,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:04:50,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1238358746, now seen corresponding path program 1 times [2024-11-19 06:04:50,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:04:50,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263035650] [2024-11-19 06:04:50,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:50,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:04:50,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:50,301 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-19 06:04:50,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:04:50,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263035650] [2024-11-19 06:04:50,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263035650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:04:50,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:04:50,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:04:50,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173529391] [2024-11-19 06:04:50,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:04:50,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:04:50,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:04:50,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:04:50,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:04:50,322 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 131 [2024-11-19 06:04:50,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 142 transitions, 436 flow. Second operand has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:50,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:04:50,323 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 131 [2024-11-19 06:04:50,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:04:51,181 INFO L124 PetriNetUnfolderBase]: 934/5912 cut-off events. [2024-11-19 06:04:51,182 INFO L125 PetriNetUnfolderBase]: For 3617/3719 co-relation queries the response was YES. [2024-11-19 06:04:51,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10624 conditions, 5912 events. 934/5912 cut-off events. For 3617/3719 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 66553 event pairs, 666 based on Foata normal form. 4/5388 useless extension candidates. Maximal degree in co-relation 3847. Up to 1548 conditions per place. [2024-11-19 06:04:51,212 INFO L140 encePairwiseOnDemand]: 126/131 looper letters, 30 selfloop transitions, 4 changer transitions 0/149 dead transitions. [2024-11-19 06:04:51,212 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 149 transitions, 540 flow [2024-11-19 06:04:51,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:04:51,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:04:51,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 345 transitions. [2024-11-19 06:04:51,213 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8778625954198473 [2024-11-19 06:04:51,214 INFO L175 Difference]: Start difference. First operand has 153 places, 142 transitions, 436 flow. Second operand 3 states and 345 transitions. [2024-11-19 06:04:51,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 149 transitions, 540 flow [2024-11-19 06:04:51,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 149 transitions, 532 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:04:51,220 INFO L231 Difference]: Finished difference. Result has 156 places, 145 transitions, 462 flow [2024-11-19 06:04:51,220 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=462, PETRI_PLACES=156, PETRI_TRANSITIONS=145} [2024-11-19 06:04:51,224 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 22 predicate places. [2024-11-19 06:04:51,224 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 145 transitions, 462 flow [2024-11-19 06:04:51,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:51,224 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:04:51,225 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-19 06:04:51,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-19 06:04:51,225 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-19 06:04:51,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:04:51,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1963262661, now seen corresponding path program 1 times [2024-11-19 06:04:51,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:04:51,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285945606] [2024-11-19 06:04:51,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:51,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:04:51,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:51,394 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:04:51,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:04:51,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285945606] [2024-11-19 06:04:51,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285945606] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:04:51,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472299944] [2024-11-19 06:04:51,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:51,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:04:51,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:04:51,397 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 06:04:51,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 06:04:51,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:51,523 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 06:04:51,525 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:04:51,744 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:04:51,744 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 06:04:51,867 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:04:51,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472299944] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 06:04:51,867 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 06:04:51,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 19 [2024-11-19 06:04:51,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429476020] [2024-11-19 06:04:51,868 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 06:04:51,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-19 06:04:51,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:04:51,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-19 06:04:51,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-19 06:04:52,022 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 131 [2024-11-19 06:04:52,024 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 145 transitions, 462 flow. Second operand has 19 states, 19 states have (on average 105.21052631578948) internal successors, (1999), 19 states have internal predecessors, (1999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:52,024 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:04:52,024 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 131 [2024-11-19 06:04:52,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:04:53,023 INFO L124 PetriNetUnfolderBase]: 1216/8145 cut-off events. [2024-11-19 06:04:53,023 INFO L125 PetriNetUnfolderBase]: For 3428/3694 co-relation queries the response was YES. [2024-11-19 06:04:53,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13774 conditions, 8145 events. 1216/8145 cut-off events. For 3428/3694 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 88349 event pairs, 191 based on Foata normal form. 20/7428 useless extension candidates. Maximal degree in co-relation 5543. Up to 893 conditions per place. [2024-11-19 06:04:53,062 INFO L140 encePairwiseOnDemand]: 123/131 looper letters, 84 selfloop transitions, 14 changer transitions 1/211 dead transitions. [2024-11-19 06:04:53,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 211 transitions, 868 flow [2024-11-19 06:04:53,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 06:04:53,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-19 06:04:53,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1542 transitions. [2024-11-19 06:04:53,065 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8407851690294439 [2024-11-19 06:04:53,065 INFO L175 Difference]: Start difference. First operand has 156 places, 145 transitions, 462 flow. Second operand 14 states and 1542 transitions. [2024-11-19 06:04:53,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 211 transitions, 868 flow [2024-11-19 06:04:53,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 211 transitions, 856 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-19 06:04:53,076 INFO L231 Difference]: Finished difference. Result has 171 places, 149 transitions, 517 flow [2024-11-19 06:04:53,077 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=517, PETRI_PLACES=171, PETRI_TRANSITIONS=149} [2024-11-19 06:04:53,077 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 37 predicate places. [2024-11-19 06:04:53,078 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 149 transitions, 517 flow [2024-11-19 06:04:53,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 105.21052631578948) internal successors, (1999), 19 states have internal predecessors, (1999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:53,079 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:04:53,079 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2024-11-19 06:04:53,096 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-19 06:04:53,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:04:53,280 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-19 06:04:53,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:04:53,281 INFO L85 PathProgramCache]: Analyzing trace with hash -466262246, now seen corresponding path program 1 times [2024-11-19 06:04:53,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:04:53,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256833487] [2024-11-19 06:04:53,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:53,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:04:53,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:53,335 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-19 06:04:53,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:04:53,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256833487] [2024-11-19 06:04:53,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256833487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:04:53,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:04:53,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:04:53,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655544728] [2024-11-19 06:04:53,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:04:53,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:04:53,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:04:53,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:04:53,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:04:53,356 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 131 [2024-11-19 06:04:53,357 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 149 transitions, 517 flow. Second operand has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:53,357 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:04:53,357 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 131 [2024-11-19 06:04:53,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:04:53,944 INFO L124 PetriNetUnfolderBase]: 883/5630 cut-off events. [2024-11-19 06:04:53,944 INFO L125 PetriNetUnfolderBase]: For 4246/4342 co-relation queries the response was YES. [2024-11-19 06:04:53,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10695 conditions, 5630 events. 883/5630 cut-off events. For 4246/4342 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 61385 event pairs, 677 based on Foata normal form. 4/5132 useless extension candidates. Maximal degree in co-relation 9881. Up to 1476 conditions per place. [2024-11-19 06:04:53,964 INFO L140 encePairwiseOnDemand]: 126/131 looper letters, 30 selfloop transitions, 4 changer transitions 0/155 dead transitions. [2024-11-19 06:04:53,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 155 transitions, 612 flow [2024-11-19 06:04:53,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:04:53,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:04:53,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 344 transitions. [2024-11-19 06:04:53,966 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8753180661577609 [2024-11-19 06:04:53,966 INFO L175 Difference]: Start difference. First operand has 171 places, 149 transitions, 517 flow. Second operand 3 states and 344 transitions. [2024-11-19 06:04:53,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 155 transitions, 612 flow [2024-11-19 06:04:53,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 155 transitions, 594 flow, removed 2 selfloop flow, removed 7 redundant places. [2024-11-19 06:04:53,989 INFO L231 Difference]: Finished difference. Result has 168 places, 152 transitions, 535 flow [2024-11-19 06:04:53,989 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=499, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=535, PETRI_PLACES=168, PETRI_TRANSITIONS=152} [2024-11-19 06:04:53,990 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 34 predicate places. [2024-11-19 06:04:53,990 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 152 transitions, 535 flow [2024-11-19 06:04:53,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:53,990 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:04:53,990 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:04:53,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-19 06:04:53,991 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-19 06:04:53,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:04:53,992 INFO L85 PathProgramCache]: Analyzing trace with hash 78765815, now seen corresponding path program 1 times [2024-11-19 06:04:53,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:04:53,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638562483] [2024-11-19 06:04:53,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:53,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:04:54,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:54,328 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-19 06:04:54,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:04:54,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638562483] [2024-11-19 06:04:54,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638562483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:04:54,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:04:54,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:04:54,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161475819] [2024-11-19 06:04:54,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:04:54,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 06:04:54,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:04:54,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 06:04:54,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 06:04:54,397 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 131 [2024-11-19 06:04:54,398 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 152 transitions, 535 flow. Second operand has 6 states, 6 states have (on average 98.66666666666667) internal successors, (592), 6 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:54,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:04:54,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 131 [2024-11-19 06:04:54,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:04:55,592 INFO L124 PetriNetUnfolderBase]: 2726/11128 cut-off events. [2024-11-19 06:04:55,592 INFO L125 PetriNetUnfolderBase]: For 5193/5497 co-relation queries the response was YES. [2024-11-19 06:04:55,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21760 conditions, 11128 events. 2726/11128 cut-off events. For 5193/5497 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 122011 event pairs, 1342 based on Foata normal form. 0/10424 useless extension candidates. Maximal degree in co-relation 19469. Up to 2509 conditions per place. [2024-11-19 06:04:55,679 INFO L140 encePairwiseOnDemand]: 125/131 looper letters, 59 selfloop transitions, 6 changer transitions 0/183 dead transitions. [2024-11-19 06:04:55,679 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 183 transitions, 759 flow [2024-11-19 06:04:55,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 06:04:55,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 06:04:55,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 641 transitions. [2024-11-19 06:04:55,681 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8155216284987278 [2024-11-19 06:04:55,681 INFO L175 Difference]: Start difference. First operand has 168 places, 152 transitions, 535 flow. Second operand 6 states and 641 transitions. [2024-11-19 06:04:55,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 183 transitions, 759 flow [2024-11-19 06:04:55,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 183 transitions, 745 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-19 06:04:55,735 INFO L231 Difference]: Finished difference. Result has 170 places, 151 transitions, 531 flow [2024-11-19 06:04:55,736 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=519, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=531, PETRI_PLACES=170, PETRI_TRANSITIONS=151} [2024-11-19 06:04:55,736 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 36 predicate places. [2024-11-19 06:04:55,736 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 151 transitions, 531 flow [2024-11-19 06:04:55,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 98.66666666666667) internal successors, (592), 6 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:55,737 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:04:55,737 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:04:55,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-19 06:04:55,737 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-19 06:04:55,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:04:55,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1288918785, now seen corresponding path program 1 times [2024-11-19 06:04:55,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:04:55,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573557111] [2024-11-19 06:04:55,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:55,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:04:55,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:55,971 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 97 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:04:55,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:04:55,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573557111] [2024-11-19 06:04:55,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573557111] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:04:55,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385054692] [2024-11-19 06:04:55,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:55,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:04:55,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:04:55,975 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) [2024-11-19 06:04:55,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 06:04:56,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:56,122 INFO L255 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-19 06:04:56,126 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:04:56,477 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:04:56,478 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 06:04:56,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [385054692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:04:56,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 06:04:56,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [12] total 21 [2024-11-19 06:04:56,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846078958] [2024-11-19 06:04:56,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:04:56,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 06:04:56,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:04:56,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 06:04:56,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2024-11-19 06:04:56,596 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 131 [2024-11-19 06:04:56,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 151 transitions, 531 flow. Second operand has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:56,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:04:56,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 131 [2024-11-19 06:04:56,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:04:57,751 INFO L124 PetriNetUnfolderBase]: 1126/7473 cut-off events. [2024-11-19 06:04:57,751 INFO L125 PetriNetUnfolderBase]: For 4630/4866 co-relation queries the response was YES. [2024-11-19 06:04:57,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14417 conditions, 7473 events. 1126/7473 cut-off events. For 4630/4866 co-relation queries the response was YES. Maximal size of possible extension queue 261. Compared 80455 event pairs, 159 based on Foata normal form. 48/6973 useless extension candidates. Maximal degree in co-relation 4931. Up to 557 conditions per place. [2024-11-19 06:04:57,800 INFO L140 encePairwiseOnDemand]: 123/131 looper letters, 89 selfloop transitions, 16 changer transitions 8/227 dead transitions. [2024-11-19 06:04:57,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 227 transitions, 978 flow [2024-11-19 06:04:57,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-19 06:04:57,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-19 06:04:57,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1778 transitions. [2024-11-19 06:04:57,803 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8482824427480916 [2024-11-19 06:04:57,803 INFO L175 Difference]: Start difference. First operand has 170 places, 151 transitions, 531 flow. Second operand 16 states and 1778 transitions. [2024-11-19 06:04:57,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 227 transitions, 978 flow [2024-11-19 06:04:57,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 227 transitions, 958 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-11-19 06:04:57,823 INFO L231 Difference]: Finished difference. Result has 175 places, 149 transitions, 528 flow [2024-11-19 06:04:57,823 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=496, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=528, PETRI_PLACES=175, PETRI_TRANSITIONS=149} [2024-11-19 06:04:57,824 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 41 predicate places. [2024-11-19 06:04:57,824 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 149 transitions, 528 flow [2024-11-19 06:04:57,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:57,825 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:04:57,825 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:04:57,842 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-19 06:04:58,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:04:58,026 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-19 06:04:58,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:04:58,026 INFO L85 PathProgramCache]: Analyzing trace with hash 66093328, now seen corresponding path program 1 times [2024-11-19 06:04:58,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:04:58,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677766069] [2024-11-19 06:04:58,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:58,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:04:58,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:58,084 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-11-19 06:04:58,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:04:58,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677766069] [2024-11-19 06:04:58,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677766069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:04:58,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:04:58,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:04:58,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067968229] [2024-11-19 06:04:58,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:04:58,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:04:58,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:04:58,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:04:58,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:04:58,103 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 131 [2024-11-19 06:04:58,104 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 149 transitions, 528 flow. Second operand has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:58,104 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:04:58,104 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 131 [2024-11-19 06:04:58,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:04:59,030 INFO L124 PetriNetUnfolderBase]: 1353/8854 cut-off events. [2024-11-19 06:04:59,030 INFO L125 PetriNetUnfolderBase]: For 5628/5712 co-relation queries the response was YES. [2024-11-19 06:04:59,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17164 conditions, 8854 events. 1353/8854 cut-off events. For 5628/5712 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 105730 event pairs, 605 based on Foata normal form. 0/8294 useless extension candidates. Maximal degree in co-relation 16379. Up to 1591 conditions per place. [2024-11-19 06:04:59,079 INFO L140 encePairwiseOnDemand]: 124/131 looper letters, 30 selfloop transitions, 9 changer transitions 1/162 dead transitions. [2024-11-19 06:04:59,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 162 transitions, 662 flow [2024-11-19 06:04:59,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:04:59,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:04:59,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 355 transitions. [2024-11-19 06:04:59,081 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9033078880407125 [2024-11-19 06:04:59,081 INFO L175 Difference]: Start difference. First operand has 175 places, 149 transitions, 528 flow. Second operand 3 states and 355 transitions. [2024-11-19 06:04:59,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 162 transitions, 662 flow [2024-11-19 06:04:59,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 162 transitions, 608 flow, removed 3 selfloop flow, removed 17 redundant places. [2024-11-19 06:04:59,143 INFO L231 Difference]: Finished difference. Result has 162 places, 153 transitions, 550 flow [2024-11-19 06:04:59,143 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=474, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=550, PETRI_PLACES=162, PETRI_TRANSITIONS=153} [2024-11-19 06:04:59,143 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 28 predicate places. [2024-11-19 06:04:59,143 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 153 transitions, 550 flow [2024-11-19 06:04:59,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:59,144 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:04:59,144 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:04:59,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-19 06:04:59,144 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-19 06:04:59,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:04:59,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1305300435, now seen corresponding path program 1 times [2024-11-19 06:04:59,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:04:59,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978649843] [2024-11-19 06:04:59,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:59,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:04:59,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:59,254 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-19 06:04:59,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:04:59,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978649843] [2024-11-19 06:04:59,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978649843] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:04:59,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [702923504] [2024-11-19 06:04:59,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:04:59,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:04:59,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:04:59,256 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) [2024-11-19 06:04:59,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-19 06:04:59,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:04:59,407 INFO L255 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 06:04:59,409 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:04:59,576 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-19 06:04:59,576 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 06:04:59,695 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-19 06:04:59,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [702923504] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 06:04:59,696 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 06:04:59,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-19 06:04:59,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533534199] [2024-11-19 06:04:59,696 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 06:04:59,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 06:04:59,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:04:59,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 06:04:59,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-11-19 06:04:59,767 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 131 [2024-11-19 06:04:59,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 153 transitions, 550 flow. Second operand has 10 states, 10 states have (on average 108.4) internal successors, (1084), 10 states have internal predecessors, (1084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:04:59,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:04:59,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 131 [2024-11-19 06:04:59,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:05:00,440 INFO L124 PetriNetUnfolderBase]: 1022/5505 cut-off events. [2024-11-19 06:05:00,441 INFO L125 PetriNetUnfolderBase]: For 3594/3790 co-relation queries the response was YES. [2024-11-19 06:05:00,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10593 conditions, 5505 events. 1022/5505 cut-off events. For 3594/3790 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 55239 event pairs, 238 based on Foata normal form. 80/5465 useless extension candidates. Maximal degree in co-relation 9919. Up to 562 conditions per place. [2024-11-19 06:05:00,470 INFO L140 encePairwiseOnDemand]: 125/131 looper letters, 53 selfloop transitions, 7 changer transitions 8/196 dead transitions. [2024-11-19 06:05:00,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 196 transitions, 826 flow [2024-11-19 06:05:00,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 06:05:00,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 06:05:00,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 699 transitions. [2024-11-19 06:05:00,472 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8893129770992366 [2024-11-19 06:05:00,472 INFO L175 Difference]: Start difference. First operand has 162 places, 153 transitions, 550 flow. Second operand 6 states and 699 transitions. [2024-11-19 06:05:00,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 196 transitions, 826 flow [2024-11-19 06:05:00,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 196 transitions, 808 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:05:00,491 INFO L231 Difference]: Finished difference. Result has 167 places, 155 transitions, 564 flow [2024-11-19 06:05:00,491 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=532, PETRI_DIFFERENCE_MINUEND_PLACES=160, 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=6, PETRI_FLOW=564, PETRI_PLACES=167, PETRI_TRANSITIONS=155} [2024-11-19 06:05:00,491 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 33 predicate places. [2024-11-19 06:05:00,492 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 155 transitions, 564 flow [2024-11-19 06:05:00,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 108.4) internal successors, (1084), 10 states have internal predecessors, (1084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:05:00,493 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:05:00,493 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:05:00,507 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-19 06:05:00,693 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,SelfDestructingSolverStorable36 [2024-11-19 06:05:00,694 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-19 06:05:00,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:05:00,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1814708090, now seen corresponding path program 1 times [2024-11-19 06:05:00,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:05:00,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134508436] [2024-11-19 06:05:00,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:05:00,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:05:00,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:05:01,965 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 4 proven. 113 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:05:01,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:05:01,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134508436] [2024-11-19 06:05:01,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134508436] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:05:01,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78406121] [2024-11-19 06:05:01,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:05:01,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:05:01,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:05:01,968 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) [2024-11-19 06:05:01,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-19 06:05:02,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:05:02,138 INFO L255 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-19 06:05:02,142 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:05:02,534 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 15 treesize of output 1 [2024-11-19 06:05:02,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 06:05:02,737 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 29 treesize of output 13 [2024-11-19 06:05:03,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 17 treesize of output 9 [2024-11-19 06:05:03,154 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 4 proven. 113 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:05:03,154 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 06:05:03,687 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 23 treesize of output 21 [2024-11-19 06:05:03,692 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 102 treesize of output 94 [2024-11-19 06:05:04,070 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 4 proven. 113 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:05:04,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78406121] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 06:05:04,071 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 06:05:04,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 19, 18] total 54 [2024-11-19 06:05:04,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618682638] [2024-11-19 06:05:04,071 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 06:05:04,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2024-11-19 06:05:04,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:05:04,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2024-11-19 06:05:04,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=252, Invalid=2610, Unknown=0, NotChecked=0, Total=2862 [2024-11-19 06:05:06,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-19 06:05:07,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-19 06:05:09,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-19 06:05:12,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-19 06:05:14,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-19 06:05:17,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-19 06:05:19,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-19 06:05:19,428 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 131 [2024-11-19 06:05:19,431 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 155 transitions, 564 flow. Second operand has 54 states, 54 states have (on average 90.44444444444444) internal successors, (4884), 54 states have internal predecessors, (4884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:05:19,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:05:19,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 131 [2024-11-19 06:05:19,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:05:21,837 INFO L124 PetriNetUnfolderBase]: 1946/7335 cut-off events. [2024-11-19 06:05:21,837 INFO L125 PetriNetUnfolderBase]: For 4585/4781 co-relation queries the response was YES. [2024-11-19 06:05:21,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16051 conditions, 7335 events. 1946/7335 cut-off events. For 4585/4781 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 71104 event pairs, 134 based on Foata normal form. 24/7118 useless extension candidates. Maximal degree in co-relation 6680. Up to 1000 conditions per place. [2024-11-19 06:05:21,876 INFO L140 encePairwiseOnDemand]: 113/131 looper letters, 149 selfloop transitions, 28 changer transitions 8/289 dead transitions. [2024-11-19 06:05:21,876 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 289 transitions, 1321 flow [2024-11-19 06:05:21,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-19 06:05:21,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-11-19 06:05:21,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 2360 transitions. [2024-11-19 06:05:21,879 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7206106870229008 [2024-11-19 06:05:21,879 INFO L175 Difference]: Start difference. First operand has 167 places, 155 transitions, 564 flow. Second operand 25 states and 2360 transitions. [2024-11-19 06:05:21,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 289 transitions, 1321 flow [2024-11-19 06:05:21,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 289 transitions, 1313 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-19 06:05:21,896 INFO L231 Difference]: Finished difference. Result has 197 places, 163 transitions, 664 flow [2024-11-19 06:05:21,896 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=556, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=664, PETRI_PLACES=197, PETRI_TRANSITIONS=163} [2024-11-19 06:05:21,897 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 63 predicate places. [2024-11-19 06:05:21,897 INFO L471 AbstractCegarLoop]: Abstraction has has 197 places, 163 transitions, 664 flow [2024-11-19 06:05:21,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 90.44444444444444) internal successors, (4884), 54 states have internal predecessors, (4884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:05:21,899 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:05:21,899 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:05:21,917 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-19 06:05:22,103 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,SelfDestructingSolverStorable37 [2024-11-19 06:05:22,104 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-19 06:05:22,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:05:22,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1007818022, now seen corresponding path program 2 times [2024-11-19 06:05:22,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:05:22,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080239533] [2024-11-19 06:05:22,104 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 06:05:22,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:05:22,145 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 06:05:22,145 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 06:05:23,317 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 4 proven. 113 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:05:23,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:05:23,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080239533] [2024-11-19 06:05:23,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080239533] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:05:23,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713493924] [2024-11-19 06:05:23,319 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 06:05:23,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:05:23,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:05:23,321 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 06:05:23,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-19 06:05:23,516 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 06:05:23,516 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 06:05:23,518 INFO L255 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-19 06:05:23,521 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:05:24,114 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 15 treesize of output 1 [2024-11-19 06:05:24,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 06:05:24,352 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 29 treesize of output 13 [2024-11-19 06:05:24,561 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 17 treesize of output 9 [2024-11-19 06:05:24,588 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 4 proven. 113 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:05:24,589 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 06:05:25,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 23 treesize of output 21 [2024-11-19 06:05:25,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 102 treesize of output 94 [2024-11-19 06:05:25,518 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 4 proven. 113 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:05:25,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [713493924] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 06:05:25,518 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 06:05:25,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 20, 19] total 58 [2024-11-19 06:05:25,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144002422] [2024-11-19 06:05:25,518 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 06:05:25,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2024-11-19 06:05:25,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:05:25,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2024-11-19 06:05:25,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=275, Invalid=3031, Unknown=0, NotChecked=0, Total=3306 [2024-11-19 06:05:27,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-19 06:05:28,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-19 06:05:30,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-19 06:05:32,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-19 06:05:34,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-19 06:05:37,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1]