./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.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 a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 09:49:33,461 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 09:49:33,520 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-13 09:49:33,526 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 09:49:33,528 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 09:49:33,543 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 09:49:33,543 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 09:49:33,544 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 09:49:33,544 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 09:49:33,544 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 09:49:33,545 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 09:49:33,545 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 09:49:33,545 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 09:49:33,546 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 09:49:33,546 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 09:49:33,546 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 09:49:33,546 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 09:49:33,547 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 09:49:33,547 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 09:49:33,547 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 09:49:33,547 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 09:49:33,548 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 09:49:33,548 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-13 09:49:33,548 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 09:49:33,549 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 09:49:33,549 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 09:49:33,549 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 09:49:33,549 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 09:49:33,550 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 09:49:33,550 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 09:49:33,550 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 09:49:33,550 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:49:33,550 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 09:49:33,551 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 09:49:33,551 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 09:49:33,551 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 09:49:33,551 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 09:49:33,551 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 09:49:33,552 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 09:49:33,552 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 09:49:33,552 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 09:49:33,552 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb [2024-10-13 09:49:33,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 09:49:33,811 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 09:49:33,813 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 09:49:33,814 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 09:49:33,814 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 09:49:33,815 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2024-10-13 09:49:35,105 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 09:49:35,305 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 09:49:35,305 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2024-10-13 09:49:35,324 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89b95b7fa/f9f631c2274e4161ab3ddc57ed3e4bd8/FLAG23e113cc8 [2024-10-13 09:49:35,334 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89b95b7fa/f9f631c2274e4161ab3ddc57ed3e4bd8 [2024-10-13 09:49:35,337 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 09:49:35,338 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 09:49:35,339 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 09:49:35,340 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 09:49:35,344 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 09:49:35,345 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:49:35" (1/1) ... [2024-10-13 09:49:35,347 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3024e907 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:35, skipping insertion in model container [2024-10-13 09:49:35,347 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:49:35" (1/1) ... [2024-10-13 09:49:35,394 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 09:49:35,739 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:49:35,754 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 09:49:35,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:49:35,831 INFO L204 MainTranslator]: Completed translation [2024-10-13 09:49:35,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:35 WrapperNode [2024-10-13 09:49:35,831 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 09:49:35,832 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 09:49:35,832 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 09:49:35,832 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 09:49:35,838 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:35" (1/1) ... [2024-10-13 09:49:35,853 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:35" (1/1) ... [2024-10-13 09:49:35,873 INFO L138 Inliner]: procedures = 264, calls = 14, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 95 [2024-10-13 09:49:35,874 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 09:49:35,874 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 09:49:35,874 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 09:49:35,874 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 09:49:35,882 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:35" (1/1) ... [2024-10-13 09:49:35,882 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:35" (1/1) ... [2024-10-13 09:49:35,885 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:35" (1/1) ... [2024-10-13 09:49:35,885 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:35" (1/1) ... [2024-10-13 09:49:35,895 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:35" (1/1) ... [2024-10-13 09:49:35,897 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:35" (1/1) ... [2024-10-13 09:49:35,902 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:35" (1/1) ... [2024-10-13 09:49:35,903 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:35" (1/1) ... [2024-10-13 09:49:35,905 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 09:49:35,906 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 09:49:35,906 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 09:49:35,906 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 09:49:35,907 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:35" (1/1) ... [2024-10-13 09:49:35,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:49:35,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:49:35,932 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 09:49:35,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 09:49:35,964 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-13 09:49:35,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-13 09:49:35,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-13 09:49:35,965 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-13 09:49:35,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 09:49:35,965 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-13 09:49:35,965 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-13 09:49:35,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 09:49:35,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 09:49:35,967 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 09:49:36,098 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 09:49:36,100 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 09:49:36,271 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 09:49:36,271 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 09:49:36,296 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 09:49:36,300 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 09:49:36,300 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:49:36 BoogieIcfgContainer [2024-10-13 09:49:36,300 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 09:49:36,302 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 09:49:36,302 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 09:49:36,304 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 09:49:36,304 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:49:35" (1/3) ... [2024-10-13 09:49:36,305 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6635f130 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:49:36, skipping insertion in model container [2024-10-13 09:49:36,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:35" (2/3) ... [2024-10-13 09:49:36,305 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6635f130 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:49:36, skipping insertion in model container [2024-10-13 09:49:36,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:49:36" (3/3) ... [2024-10-13 09:49:36,306 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_08-tricky_address3.i [2024-10-13 09:49:36,319 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 09:49:36,320 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-13 09:49:36,320 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 09:49:36,369 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 09:49:36,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 105 transitions, 214 flow [2024-10-13 09:49:36,431 INFO L124 PetriNetUnfolderBase]: 4/104 cut-off events. [2024-10-13 09:49:36,432 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:49:36,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 104 events. 4/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 80 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 71. Up to 2 conditions per place. [2024-10-13 09:49:36,436 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 105 transitions, 214 flow [2024-10-13 09:49:36,439 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 104 transitions, 211 flow [2024-10-13 09:49:36,446 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:49:36,451 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;@1430dd88, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:49:36,452 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-10-13 09:49:36,465 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:49:36,466 INFO L124 PetriNetUnfolderBase]: 4/54 cut-off events. [2024-10-13 09:49:36,466 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:49:36,467 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:49:36,467 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:49:36,468 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 09:49:36,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:49:36,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1908236508, now seen corresponding path program 1 times [2024-10-13 09:49:36,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:49:36,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330703500] [2024-10-13 09:49:36,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:36,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:49:36,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:36,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:49:36,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:49:36,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330703500] [2024-10-13 09:49:36,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330703500] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:49:36,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:49:36,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 09:49:36,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632610983] [2024-10-13 09:49:36,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:49:36,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:49:36,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:49:36,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:49:36,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:49:36,824 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 105 [2024-10-13 09:49:36,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 104 transitions, 211 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) [2024-10-13 09:49:36,829 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:49:36,829 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 105 [2024-10-13 09:49:36,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:49:36,885 INFO L124 PetriNetUnfolderBase]: 7/165 cut-off events. [2024-10-13 09:49:36,885 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 09:49:36,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 165 events. 7/165 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 328 event pairs, 6 based on Foata normal form. 5/158 useless extension candidates. Maximal degree in co-relation 147. Up to 24 conditions per place. [2024-10-13 09:49:36,888 INFO L140 encePairwiseOnDemand]: 99/105 looper letters, 10 selfloop transitions, 2 changer transitions 1/102 dead transitions. [2024-10-13 09:49:36,889 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 102 transitions, 231 flow [2024-10-13 09:49:36,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:49:36,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:49:36,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 290 transitions. [2024-10-13 09:49:36,901 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9206349206349206 [2024-10-13 09:49:36,903 INFO L175 Difference]: Start difference. First operand has 104 places, 104 transitions, 211 flow. Second operand 3 states and 290 transitions. [2024-10-13 09:49:36,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 102 transitions, 231 flow [2024-10-13 09:49:36,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 102 transitions, 230 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 09:49:36,912 INFO L231 Difference]: Finished difference. Result has 106 places, 101 transitions, 214 flow [2024-10-13 09:49:36,914 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=214, PETRI_PLACES=106, PETRI_TRANSITIONS=101} [2024-10-13 09:49:36,918 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 2 predicate places. [2024-10-13 09:49:36,918 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 101 transitions, 214 flow [2024-10-13 09:49:36,919 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) [2024-10-13 09:49:36,920 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:49:36,920 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] [2024-10-13 09:49:36,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 09:49:36,920 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 09:49:36,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:49:36,922 INFO L85 PathProgramCache]: Analyzing trace with hash -833281672, now seen corresponding path program 1 times [2024-10-13 09:49:36,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:49:36,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883841709] [2024-10-13 09:49:36,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:36,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:49:36,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:37,087 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:49:37,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:49:37,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883841709] [2024-10-13 09:49:37,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883841709] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:49:37,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903956848] [2024-10-13 09:49:37,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:37,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:49:37,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:49:37,090 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:49:37,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 09:49:37,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:37,162 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 09:49:37,166 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:49:37,219 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:49:37,219 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:49:37,261 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:49:37,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903956848] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:49:37,263 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:49:37,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-13 09:49:37,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040867760] [2024-10-13 09:49:37,264 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:49:37,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 09:49:37,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:49:37,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 09:49:37,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-13 09:49:37,296 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 105 [2024-10-13 09:49:37,298 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 101 transitions, 214 flow. Second operand has 10 states, 10 states have (on average 90.0) internal successors, (900), 10 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:49:37,298 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:49:37,298 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 105 [2024-10-13 09:49:37,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:49:37,433 INFO L124 PetriNetUnfolderBase]: 7/171 cut-off events. [2024-10-13 09:49:37,433 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 09:49:37,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 171 events. 7/171 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 324 event pairs, 6 based on Foata normal form. 2/162 useless extension candidates. Maximal degree in co-relation 194. Up to 24 conditions per place. [2024-10-13 09:49:37,435 INFO L140 encePairwiseOnDemand]: 99/105 looper letters, 14 selfloop transitions, 9 changer transitions 0/109 dead transitions. [2024-10-13 09:49:37,436 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 109 transitions, 278 flow [2024-10-13 09:49:37,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 09:49:37,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-13 09:49:37,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 817 transitions. [2024-10-13 09:49:37,441 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8645502645502645 [2024-10-13 09:49:37,441 INFO L175 Difference]: Start difference. First operand has 106 places, 101 transitions, 214 flow. Second operand 9 states and 817 transitions. [2024-10-13 09:49:37,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 109 transitions, 278 flow [2024-10-13 09:49:37,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 109 transitions, 276 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 09:49:37,444 INFO L231 Difference]: Finished difference. Result has 115 places, 107 transitions, 262 flow [2024-10-13 09:49:37,445 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=262, PETRI_PLACES=115, PETRI_TRANSITIONS=107} [2024-10-13 09:49:37,445 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 11 predicate places. [2024-10-13 09:49:37,445 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 107 transitions, 262 flow [2024-10-13 09:49:37,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 90.0) internal successors, (900), 10 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:49:37,446 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:49:37,446 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:49:37,462 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 09:49:37,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:49:37,653 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 09:49:37,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:49:37,654 INFO L85 PathProgramCache]: Analyzing trace with hash -29516552, now seen corresponding path program 2 times [2024-10-13 09:49:37,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:49:37,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554928688] [2024-10-13 09:49:37,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:37,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:49:37,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:37,805 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:49:37,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:49:37,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554928688] [2024-10-13 09:49:37,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554928688] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:49:37,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [947566744] [2024-10-13 09:49:37,806 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 09:49:37,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:49:37,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:49:37,809 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:49:37,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 09:49:37,867 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 09:49:37,867 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:49:37,868 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-13 09:49:37,870 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:49:37,906 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 11 [2024-10-13 09:49:37,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-13 09:49:37,969 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:49:37,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-10-13 09:49:38,004 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:49:38,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-10-13 09:49:38,048 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-13 09:49:38,049 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 09:49:38,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [947566744] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:49:38,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 09:49:38,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-10-13 09:49:38,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774631112] [2024-10-13 09:49:38,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:49:38,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:49:38,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:49:38,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:49:38,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-10-13 09:49:38,195 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 105 [2024-10-13 09:49:38,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 107 transitions, 262 flow. Second operand has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:49:38,196 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:49:38,196 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 105 [2024-10-13 09:49:38,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:49:38,401 INFO L124 PetriNetUnfolderBase]: 103/504 cut-off events. [2024-10-13 09:49:38,401 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-13 09:49:38,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 770 conditions, 504 events. 103/504 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2432 event pairs, 41 based on Foata normal form. 0/465 useless extension candidates. Maximal degree in co-relation 716. Up to 184 conditions per place. [2024-10-13 09:49:38,404 INFO L140 encePairwiseOnDemand]: 94/105 looper letters, 31 selfloop transitions, 22 changer transitions 0/136 dead transitions. [2024-10-13 09:49:38,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 136 transitions, 426 flow [2024-10-13 09:49:38,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:49:38,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:49:38,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 522 transitions. [2024-10-13 09:49:38,408 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8285714285714286 [2024-10-13 09:49:38,408 INFO L175 Difference]: Start difference. First operand has 115 places, 107 transitions, 262 flow. Second operand 6 states and 522 transitions. [2024-10-13 09:49:38,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 136 transitions, 426 flow [2024-10-13 09:49:38,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 136 transitions, 420 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-13 09:49:38,413 INFO L231 Difference]: Finished difference. Result has 124 places, 128 transitions, 406 flow [2024-10-13 09:49:38,413 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=406, PETRI_PLACES=124, PETRI_TRANSITIONS=128} [2024-10-13 09:49:38,414 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 20 predicate places. [2024-10-13 09:49:38,414 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 128 transitions, 406 flow [2024-10-13 09:49:38,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:49:38,415 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:49:38,415 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:49:38,429 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-13 09:49:38,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-10-13 09:49:38,620 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 09:49:38,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:49:38,621 INFO L85 PathProgramCache]: Analyzing trace with hash -99094314, now seen corresponding path program 1 times [2024-10-13 09:49:38,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:49:38,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391012237] [2024-10-13 09:49:38,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:38,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:49:38,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:38,801 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:49:38,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:49:38,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391012237] [2024-10-13 09:49:38,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391012237] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:49:38,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969373435] [2024-10-13 09:49:38,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:38,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:49:38,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:49:38,805 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:49:38,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 09:49:38,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:38,874 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 09:49:38,876 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:49:38,927 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:49:38,927 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:49:39,014 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:49:39,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1969373435] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:49:39,014 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:49:39,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-13 09:49:39,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136978558] [2024-10-13 09:49:39,014 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:49:39,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-13 09:49:39,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:49:39,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-13 09:49:39,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-13 09:49:39,046 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 105 [2024-10-13 09:49:39,048 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 128 transitions, 406 flow. Second operand has 18 states, 18 states have (on average 90.0) internal successors, (1620), 18 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:49:39,048 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:49:39,048 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 105 [2024-10-13 09:49:39,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:49:39,245 INFO L124 PetriNetUnfolderBase]: 41/346 cut-off events. [2024-10-13 09:49:39,246 INFO L125 PetriNetUnfolderBase]: For 54/57 co-relation queries the response was YES. [2024-10-13 09:49:39,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 626 conditions, 346 events. 41/346 cut-off events. For 54/57 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1212 event pairs, 11 based on Foata normal form. 4/334 useless extension candidates. Maximal degree in co-relation 497. Up to 51 conditions per place. [2024-10-13 09:49:39,250 INFO L140 encePairwiseOnDemand]: 99/105 looper letters, 18 selfloop transitions, 21 changer transitions 0/146 dead transitions. [2024-10-13 09:49:39,250 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 146 transitions, 572 flow [2024-10-13 09:49:39,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-13 09:49:39,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-13 09:49:39,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1891 transitions. [2024-10-13 09:49:39,253 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8575963718820862 [2024-10-13 09:49:39,253 INFO L175 Difference]: Start difference. First operand has 124 places, 128 transitions, 406 flow. Second operand 21 states and 1891 transitions. [2024-10-13 09:49:39,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 146 transitions, 572 flow [2024-10-13 09:49:39,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 146 transitions, 572 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 09:49:39,258 INFO L231 Difference]: Finished difference. Result has 149 places, 141 transitions, 536 flow [2024-10-13 09:49:39,259 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=536, PETRI_PLACES=149, PETRI_TRANSITIONS=141} [2024-10-13 09:49:39,259 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 45 predicate places. [2024-10-13 09:49:39,259 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 141 transitions, 536 flow [2024-10-13 09:49:39,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 90.0) internal successors, (1620), 18 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:49:39,260 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:49:39,261 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:49:39,273 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-13 09:49:39,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:49:39,462 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 09:49:39,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:49:39,462 INFO L85 PathProgramCache]: Analyzing trace with hash -2134063146, now seen corresponding path program 2 times [2024-10-13 09:49:39,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:49:39,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772902175] [2024-10-13 09:49:39,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:39,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:49:39,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:39,723 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:49:39,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:49:39,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772902175] [2024-10-13 09:49:39,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772902175] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:49:39,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223489903] [2024-10-13 09:49:39,723 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 09:49:39,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:49:39,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:49:39,725 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:49:39,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 09:49:39,784 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 09:49:39,785 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:49:39,785 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-13 09:49:39,787 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:49:39,793 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 11 [2024-10-13 09:49:39,807 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-13 09:49:39,835 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:49:39,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-10-13 09:49:39,869 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:49:39,870 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-10-13 09:49:39,897 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-13 09:49:39,897 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 09:49:39,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223489903] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:49:39,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 09:49:39,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-10-13 09:49:39,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155324855] [2024-10-13 09:49:39,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:49:39,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:49:39,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:49:39,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:49:39,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-13 09:49:40,006 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 105 [2024-10-13 09:49:40,006 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 141 transitions, 536 flow. Second operand has 6 states, 6 states have (on average 74.66666666666667) internal successors, (448), 6 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:49:40,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:49:40,007 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 105 [2024-10-13 09:49:40,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:49:40,165 INFO L124 PetriNetUnfolderBase]: 223/836 cut-off events. [2024-10-13 09:49:40,166 INFO L125 PetriNetUnfolderBase]: For 189/195 co-relation queries the response was YES. [2024-10-13 09:49:40,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1707 conditions, 836 events. 223/836 cut-off events. For 189/195 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4698 event pairs, 82 based on Foata normal form. 5/782 useless extension candidates. Maximal degree in co-relation 1569. Up to 407 conditions per place. [2024-10-13 09:49:40,171 INFO L140 encePairwiseOnDemand]: 90/105 looper letters, 53 selfloop transitions, 39 changer transitions 5/186 dead transitions. [2024-10-13 09:49:40,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 186 transitions, 850 flow [2024-10-13 09:49:40,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:49:40,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:49:40,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 508 transitions. [2024-10-13 09:49:40,172 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8063492063492064 [2024-10-13 09:49:40,172 INFO L175 Difference]: Start difference. First operand has 149 places, 141 transitions, 536 flow. Second operand 6 states and 508 transitions. [2024-10-13 09:49:40,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 186 transitions, 850 flow [2024-10-13 09:49:40,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 186 transitions, 826 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-10-13 09:49:40,180 INFO L231 Difference]: Finished difference. Result has 153 places, 177 transitions, 800 flow [2024-10-13 09:49:40,180 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=512, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=800, PETRI_PLACES=153, PETRI_TRANSITIONS=177} [2024-10-13 09:49:40,181 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 49 predicate places. [2024-10-13 09:49:40,182 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 177 transitions, 800 flow [2024-10-13 09:49:40,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.66666666666667) internal successors, (448), 6 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:49:40,182 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:49:40,182 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:49:40,197 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-13 09:49:40,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:49:40,387 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 09:49:40,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:49:40,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1839739826, now seen corresponding path program 1 times [2024-10-13 09:49:40,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:49:40,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031515640] [2024-10-13 09:49:40,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:40,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:49:40,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:40,605 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:49:40,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:49:40,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031515640] [2024-10-13 09:49:40,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031515640] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:49:40,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874779810] [2024-10-13 09:49:40,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:40,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:49:40,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:49:40,608 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:49:40,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 09:49:40,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:40,683 INFO L255 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-13 09:49:40,685 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:49:40,758 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:49:40,758 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:49:40,939 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:49:40,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874779810] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:49:40,939 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:49:40,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-10-13 09:49:40,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292530916] [2024-10-13 09:49:40,939 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:49:40,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-13 09:49:40,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:49:40,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-13 09:49:40,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-10-13 09:49:40,968 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 105 [2024-10-13 09:49:40,970 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 177 transitions, 800 flow. Second operand has 23 states, 23 states have (on average 90.08695652173913) internal successors, (2072), 23 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:49:40,970 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:49:40,970 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 105 [2024-10-13 09:49:40,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:49:41,267 INFO L124 PetriNetUnfolderBase]: 120/611 cut-off events. [2024-10-13 09:49:41,268 INFO L125 PetriNetUnfolderBase]: For 325/328 co-relation queries the response was YES. [2024-10-13 09:49:41,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1355 conditions, 611 events. 120/611 cut-off events. For 325/328 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2948 event pairs, 15 based on Foata normal form. 3/586 useless extension candidates. Maximal degree in co-relation 1138. Up to 118 conditions per place. [2024-10-13 09:49:41,271 INFO L140 encePairwiseOnDemand]: 99/105 looper letters, 21 selfloop transitions, 30 changer transitions 0/194 dead transitions. [2024-10-13 09:49:41,272 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 194 transitions, 1024 flow [2024-10-13 09:49:41,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-13 09:49:41,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-10-13 09:49:41,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 2694 transitions. [2024-10-13 09:49:41,276 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8552380952380952 [2024-10-13 09:49:41,277 INFO L175 Difference]: Start difference. First operand has 153 places, 177 transitions, 800 flow. Second operand 30 states and 2694 transitions. [2024-10-13 09:49:41,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 194 transitions, 1024 flow [2024-10-13 09:49:41,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 194 transitions, 992 flow, removed 16 selfloop flow, removed 0 redundant places. [2024-10-13 09:49:41,282 INFO L231 Difference]: Finished difference. Result has 185 places, 187 transitions, 920 flow [2024-10-13 09:49:41,283 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=768, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=920, PETRI_PLACES=185, PETRI_TRANSITIONS=187} [2024-10-13 09:49:41,285 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 81 predicate places. [2024-10-13 09:49:41,285 INFO L471 AbstractCegarLoop]: Abstraction has has 185 places, 187 transitions, 920 flow [2024-10-13 09:49:41,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 90.08695652173913) internal successors, (2072), 23 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:49:41,286 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:49:41,286 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:49:41,300 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-13 09:49:41,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:49:41,491 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 09:49:41,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:49:41,491 INFO L85 PathProgramCache]: Analyzing trace with hash 24662562, now seen corresponding path program 2 times [2024-10-13 09:49:41,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:49:41,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239708165] [2024-10-13 09:49:41,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:41,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:49:41,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:41,895 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:49:41,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:49:41,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239708165] [2024-10-13 09:49:41,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239708165] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:49:41,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:49:41,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:49:41,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400580982] [2024-10-13 09:49:41,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:49:41,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:49:41,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:49:41,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:49:41,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:49:41,993 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 105 [2024-10-13 09:49:41,994 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 187 transitions, 920 flow. Second operand has 6 states, 6 states have (on average 82.33333333333333) internal successors, (494), 6 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:49:41,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:49:41,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 105 [2024-10-13 09:49:41,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:49:42,143 INFO L124 PetriNetUnfolderBase]: 212/875 cut-off events. [2024-10-13 09:49:42,143 INFO L125 PetriNetUnfolderBase]: For 597/645 co-relation queries the response was YES. [2024-10-13 09:49:42,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2135 conditions, 875 events. 212/875 cut-off events. For 597/645 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 4943 event pairs, 40 based on Foata normal form. 3/860 useless extension candidates. Maximal degree in co-relation 1917. Up to 338 conditions per place. [2024-10-13 09:49:42,148 INFO L140 encePairwiseOnDemand]: 94/105 looper letters, 72 selfloop transitions, 40 changer transitions 0/226 dead transitions. [2024-10-13 09:49:42,148 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 226 transitions, 1328 flow [2024-10-13 09:49:42,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:49:42,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:49:42,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 537 transitions. [2024-10-13 09:49:42,149 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8523809523809524 [2024-10-13 09:49:42,150 INFO L175 Difference]: Start difference. First operand has 185 places, 187 transitions, 920 flow. Second operand 6 states and 537 transitions. [2024-10-13 09:49:42,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 226 transitions, 1328 flow [2024-10-13 09:49:42,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 226 transitions, 1282 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-10-13 09:49:42,156 INFO L231 Difference]: Finished difference. Result has 177 places, 218 transitions, 1242 flow [2024-10-13 09:49:42,156 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=874, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1242, PETRI_PLACES=177, PETRI_TRANSITIONS=218} [2024-10-13 09:49:42,156 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 73 predicate places. [2024-10-13 09:49:42,157 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 218 transitions, 1242 flow [2024-10-13 09:49:42,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.33333333333333) internal successors, (494), 6 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:49:42,157 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:49:42,157 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:49:42,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 09:49:42,158 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 09:49:42,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:49:42,158 INFO L85 PathProgramCache]: Analyzing trace with hash 180006311, now seen corresponding path program 1 times [2024-10-13 09:49:42,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:49:42,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129137173] [2024-10-13 09:49:42,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:42,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:49:42,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:42,472 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:49:42,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:49:42,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129137173] [2024-10-13 09:49:42,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129137173] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:49:42,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:49:42,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:49:42,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375510673] [2024-10-13 09:49:42,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:49:42,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:49:42,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:49:42,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:49:42,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:49:42,529 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 105 [2024-10-13 09:49:42,530 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 218 transitions, 1242 flow. Second operand has 6 states, 6 states have (on average 77.33333333333333) internal successors, (464), 6 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:49:42,530 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:49:42,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 105 [2024-10-13 09:49:42,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:49:42,783 INFO L124 PetriNetUnfolderBase]: 361/1280 cut-off events. [2024-10-13 09:49:42,783 INFO L125 PetriNetUnfolderBase]: For 1481/1522 co-relation queries the response was YES. [2024-10-13 09:49:42,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3619 conditions, 1280 events. 361/1280 cut-off events. For 1481/1522 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 7978 event pairs, 87 based on Foata normal form. 2/1246 useless extension candidates. Maximal degree in co-relation 3418. Up to 610 conditions per place. [2024-10-13 09:49:42,790 INFO L140 encePairwiseOnDemand]: 90/105 looper letters, 100 selfloop transitions, 64 changer transitions 10/279 dead transitions. [2024-10-13 09:49:42,790 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 279 transitions, 1930 flow [2024-10-13 09:49:42,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:49:42,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:49:42,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 523 transitions. [2024-10-13 09:49:42,792 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8301587301587302 [2024-10-13 09:49:42,792 INFO L175 Difference]: Start difference. First operand has 177 places, 218 transitions, 1242 flow. Second operand 6 states and 523 transitions. [2024-10-13 09:49:42,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 279 transitions, 1930 flow [2024-10-13 09:49:42,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 279 transitions, 1912 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-10-13 09:49:42,804 INFO L231 Difference]: Finished difference. Result has 187 places, 265 transitions, 1810 flow [2024-10-13 09:49:42,805 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=1224, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1810, PETRI_PLACES=187, PETRI_TRANSITIONS=265} [2024-10-13 09:49:42,805 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 83 predicate places. [2024-10-13 09:49:42,805 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 265 transitions, 1810 flow [2024-10-13 09:49:42,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.33333333333333) internal successors, (464), 6 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:49:42,806 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:49:42,806 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:49:42,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 09:49:42,807 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 09:49:42,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:49:42,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1584740447, now seen corresponding path program 1 times [2024-10-13 09:49:42,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:49:42,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217086131] [2024-10-13 09:49:42,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:42,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:49:42,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:50,315 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:49:50,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:49:50,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217086131] [2024-10-13 09:49:50,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217086131] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:49:50,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659641275] [2024-10-13 09:49:50,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:50,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:49:50,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:49:50,320 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:49:50,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-13 09:49:50,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:50,445 INFO L255 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-10-13 09:49:50,449 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:49:50,910 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 16 treesize of output 12 [2024-10-13 09:49:51,050 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 11 [2024-10-13 09:49:51,106 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-10-13 09:49:51,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2024-10-13 09:49:51,167 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 28 treesize of output 27 [2024-10-13 09:49:51,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-10-13 09:49:51,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-10-13 09:49:51,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 09:49:51,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 09:49:51,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 09:49:51,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 09:49:51,485 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:49:51,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 73 [2024-10-13 09:49:51,661 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-13 09:49:51,661 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:49:52,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 09:49:52,549 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 18 treesize of output 12 [2024-10-13 09:49:52,631 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:49:52,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1659641275] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-13 09:49:52,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-13 09:49:52,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [34, 25] total 65 [2024-10-13 09:49:52,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727185325] [2024-10-13 09:49:52,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:49:52,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 09:49:52,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:49:52,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 09:49:52,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=294, Invalid=3996, Unknown=0, NotChecked=0, Total=4290 [2024-10-13 09:49:53,247 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 105 [2024-10-13 09:49:53,248 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 265 transitions, 1810 flow. Second operand has 10 states, 10 states have (on average 71.0) internal successors, (710), 10 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:49:53,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:49:53,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 105 [2024-10-13 09:49:53,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:49:54,900 INFO L124 PetriNetUnfolderBase]: 484/1661 cut-off events. [2024-10-13 09:49:54,900 INFO L125 PetriNetUnfolderBase]: For 3042/3130 co-relation queries the response was YES. [2024-10-13 09:49:54,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5464 conditions, 1661 events. 484/1661 cut-off events. For 3042/3130 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 11080 event pairs, 12 based on Foata normal form. 47/1692 useless extension candidates. Maximal degree in co-relation 5246. Up to 566 conditions per place. [2024-10-13 09:49:54,909 INFO L140 encePairwiseOnDemand]: 81/105 looper letters, 189 selfloop transitions, 83 changer transitions 68/438 dead transitions. [2024-10-13 09:49:54,909 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 438 transitions, 3732 flow [2024-10-13 09:49:54,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-13 09:49:54,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-13 09:49:54,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1198 transitions. [2024-10-13 09:49:54,911 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7606349206349207 [2024-10-13 09:49:54,911 INFO L175 Difference]: Start difference. First operand has 187 places, 265 transitions, 1810 flow. Second operand 15 states and 1198 transitions. [2024-10-13 09:49:54,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 438 transitions, 3732 flow [2024-10-13 09:49:54,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 438 transitions, 3646 flow, removed 43 selfloop flow, removed 0 redundant places. [2024-10-13 09:49:54,928 INFO L231 Difference]: Finished difference. Result has 210 places, 306 transitions, 2426 flow [2024-10-13 09:49:54,929 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=1736, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2426, PETRI_PLACES=210, PETRI_TRANSITIONS=306} [2024-10-13 09:49:54,930 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 106 predicate places. [2024-10-13 09:49:54,930 INFO L471 AbstractCegarLoop]: Abstraction has has 210 places, 306 transitions, 2426 flow [2024-10-13 09:49:54,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 71.0) internal successors, (710), 10 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:49:54,931 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:49:54,931 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:49:54,945 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-13 09:49:55,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:49:55,132 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 09:49:55,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:49:55,132 INFO L85 PathProgramCache]: Analyzing trace with hash -26971427, now seen corresponding path program 2 times [2024-10-13 09:49:55,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:49:55,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834713640] [2024-10-13 09:49:55,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:55,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:49:55,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:50:00,198 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:50:00,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:50:00,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834713640] [2024-10-13 09:50:00,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834713640] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:50:00,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769894485] [2024-10-13 09:50:00,199 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 09:50:00,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:50:00,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:50:00,201 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:50:00,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-13 09:50:00,273 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 09:50:00,273 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:50:00,274 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-10-13 09:50:00,278 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:50:00,282 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 16 treesize of output 12 [2024-10-13 09:50:00,310 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 11 [2024-10-13 09:50:00,333 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 28 treesize of output 27 [2024-10-13 09:50:00,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-10-13 09:50:00,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-10-13 09:50:00,509 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-10-13 09:50:00,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2024-10-13 09:50:00,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 09:50:00,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 09:50:00,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 09:50:00,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 09:50:00,677 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:50:00,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 73 [2024-10-13 09:50:00,781 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:50:00,781 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 09:50:00,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1769894485] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:50:00,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 09:50:00,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [34] total 42 [2024-10-13 09:50:00,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893491334] [2024-10-13 09:50:00,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:50:00,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 09:50:00,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:50:00,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 09:50:00,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=1643, Unknown=0, NotChecked=0, Total=1806 [2024-10-13 09:50:02,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-13 09:50:02,497 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 105 [2024-10-13 09:50:02,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 306 transitions, 2426 flow. Second operand has 10 states, 10 states have (on average 71.0) internal successors, (710), 10 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:50:02,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:50:02,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 105 [2024-10-13 09:50:02,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:50:03,127 INFO L124 PetriNetUnfolderBase]: 445/1572 cut-off events. [2024-10-13 09:50:03,127 INFO L125 PetriNetUnfolderBase]: For 4775/4882 co-relation queries the response was YES. [2024-10-13 09:50:03,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6126 conditions, 1572 events. 445/1572 cut-off events. For 4775/4882 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 10480 event pairs, 46 based on Foata normal form. 66/1616 useless extension candidates. Maximal degree in co-relation 5898. Up to 633 conditions per place. [2024-10-13 09:50:03,137 INFO L140 encePairwiseOnDemand]: 85/105 looper letters, 163 selfloop transitions, 79 changer transitions 36/376 dead transitions. [2024-10-13 09:50:03,137 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 376 transitions, 3569 flow [2024-10-13 09:50:03,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 09:50:03,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-13 09:50:03,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 813 transitions. [2024-10-13 09:50:03,140 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7742857142857142 [2024-10-13 09:50:03,140 INFO L175 Difference]: Start difference. First operand has 210 places, 306 transitions, 2426 flow. Second operand 10 states and 813 transitions. [2024-10-13 09:50:03,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 376 transitions, 3569 flow [2024-10-13 09:50:03,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 376 transitions, 3547 flow, removed 11 selfloop flow, removed 0 redundant places. [2024-10-13 09:50:03,168 INFO L231 Difference]: Finished difference. Result has 219 places, 303 transitions, 2568 flow [2024-10-13 09:50:03,169 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=2404, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2568, PETRI_PLACES=219, PETRI_TRANSITIONS=303} [2024-10-13 09:50:03,169 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 115 predicate places. [2024-10-13 09:50:03,170 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 303 transitions, 2568 flow [2024-10-13 09:50:03,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 71.0) internal successors, (710), 10 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:50:03,170 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:50:03,170 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:50:03,183 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-13 09:50:03,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:50:03,371 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 09:50:03,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:50:03,372 INFO L85 PathProgramCache]: Analyzing trace with hash 243865394, now seen corresponding path program 1 times [2024-10-13 09:50:03,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:50:03,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310408700] [2024-10-13 09:50:03,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:50:03,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:50:03,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:50:04,840 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:50:04,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:50:04,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310408700] [2024-10-13 09:50:04,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310408700] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:50:04,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:50:04,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-13 09:50:04,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619820848] [2024-10-13 09:50:04,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:50:04,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 09:50:04,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:50:04,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 09:50:04,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-10-13 09:50:05,192 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 105 [2024-10-13 09:50:05,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 303 transitions, 2568 flow. Second operand has 10 states, 10 states have (on average 77.4) internal successors, (774), 10 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:50:05,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:50:05,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 105 [2024-10-13 09:50:05,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:50:05,670 INFO L124 PetriNetUnfolderBase]: 366/1409 cut-off events. [2024-10-13 09:50:05,671 INFO L125 PetriNetUnfolderBase]: For 5728/5886 co-relation queries the response was YES. [2024-10-13 09:50:05,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5674 conditions, 1409 events. 366/1409 cut-off events. For 5728/5886 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 9434 event pairs, 17 based on Foata normal form. 41/1440 useless extension candidates. Maximal degree in co-relation 5530. Up to 312 conditions per place. [2024-10-13 09:50:05,681 INFO L140 encePairwiseOnDemand]: 88/105 looper letters, 163 selfloop transitions, 86 changer transitions 33/417 dead transitions. [2024-10-13 09:50:05,681 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 417 transitions, 4351 flow [2024-10-13 09:50:05,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-13 09:50:05,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-13 09:50:05,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1017 transitions. [2024-10-13 09:50:05,684 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8071428571428572 [2024-10-13 09:50:05,684 INFO L175 Difference]: Start difference. First operand has 219 places, 303 transitions, 2568 flow. Second operand 12 states and 1017 transitions. [2024-10-13 09:50:05,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 417 transitions, 4351 flow [2024-10-13 09:50:05,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 417 transitions, 4187 flow, removed 2 selfloop flow, removed 7 redundant places. [2024-10-13 09:50:05,707 INFO L231 Difference]: Finished difference. Result has 228 places, 333 transitions, 3126 flow [2024-10-13 09:50:05,708 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=2476, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3126, PETRI_PLACES=228, PETRI_TRANSITIONS=333} [2024-10-13 09:50:05,708 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 124 predicate places. [2024-10-13 09:50:05,709 INFO L471 AbstractCegarLoop]: Abstraction has has 228 places, 333 transitions, 3126 flow [2024-10-13 09:50:05,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.4) internal successors, (774), 10 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:50:05,709 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:50:05,709 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:50:05,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-13 09:50:05,710 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 09:50:05,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:50:05,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1325042043, now seen corresponding path program 3 times [2024-10-13 09:50:05,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:50:05,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180148919] [2024-10-13 09:50:05,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:50:05,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:50:05,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:50:06,453 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:50:06,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:50:06,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180148919] [2024-10-13 09:50:06,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180148919] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:50:06,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:50:06,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-13 09:50:06,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141882940] [2024-10-13 09:50:06,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:50:06,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-13 09:50:06,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:50:06,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-13 09:50:06,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-10-13 09:50:06,789 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 105 [2024-10-13 09:50:06,790 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 333 transitions, 3126 flow. Second operand has 13 states, 13 states have (on average 66.0) internal successors, (858), 13 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:50:06,790 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:50:06,790 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 105 [2024-10-13 09:50:06,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:50:07,564 INFO L124 PetriNetUnfolderBase]: 435/1567 cut-off events. [2024-10-13 09:50:07,564 INFO L125 PetriNetUnfolderBase]: For 7533/7711 co-relation queries the response was YES. [2024-10-13 09:50:07,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6883 conditions, 1567 events. 435/1567 cut-off events. For 7533/7711 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 10554 event pairs, 62 based on Foata normal form. 102/1647 useless extension candidates. Maximal degree in co-relation 6771. Up to 630 conditions per place. [2024-10-13 09:50:07,576 INFO L140 encePairwiseOnDemand]: 79/105 looper letters, 171 selfloop transitions, 116 changer transitions 15/398 dead transitions. [2024-10-13 09:50:07,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 398 transitions, 4388 flow [2024-10-13 09:50:07,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-13 09:50:07,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-10-13 09:50:07,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1215 transitions. [2024-10-13 09:50:07,578 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.680672268907563 [2024-10-13 09:50:07,578 INFO L175 Difference]: Start difference. First operand has 228 places, 333 transitions, 3126 flow. Second operand 17 states and 1215 transitions. [2024-10-13 09:50:07,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 398 transitions, 4388 flow [2024-10-13 09:50:07,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 398 transitions, 4351 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-10-13 09:50:07,610 INFO L231 Difference]: Finished difference. Result has 244 places, 348 transitions, 3589 flow [2024-10-13 09:50:07,610 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=3104, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3589, PETRI_PLACES=244, PETRI_TRANSITIONS=348} [2024-10-13 09:50:07,610 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 140 predicate places. [2024-10-13 09:50:07,610 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 348 transitions, 3589 flow [2024-10-13 09:50:07,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 66.0) internal successors, (858), 13 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:50:07,611 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:50:07,611 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:50:07,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-13 09:50:07,611 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 09:50:07,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:50:07,612 INFO L85 PathProgramCache]: Analyzing trace with hash -972237459, now seen corresponding path program 4 times [2024-10-13 09:50:07,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:50:07,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512467580] [2024-10-13 09:50:07,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:50:07,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:50:07,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:50:12,121 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:50:12,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:50:12,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512467580] [2024-10-13 09:50:12,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512467580] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:50:12,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515055499] [2024-10-13 09:50:12,121 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-13 09:50:12,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:50:12,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:50:12,123 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:50:12,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-13 09:50:12,243 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-13 09:50:12,243 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:50:12,245 INFO L255 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 57 conjuncts are in the unsatisfiable core [2024-10-13 09:50:12,248 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:50:12,473 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 16 treesize of output 12 [2024-10-13 09:50:12,599 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-10-13 09:50:12,599 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2024-10-13 09:50:12,639 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 11 [2024-10-13 09:50:12,686 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 28 treesize of output 27 [2024-10-13 09:50:12,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-10-13 09:50:12,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-10-13 09:50:12,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 09:50:12,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 09:50:12,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 09:50:12,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 09:50:12,936 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:50:12,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 60 [2024-10-13 09:50:12,945 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 197 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-13 09:50:12,945 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:50:13,832 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 21 treesize of output 19 [2024-10-13 09:50:13,833 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 15 treesize of output 8 [2024-10-13 09:50:13,835 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:50:13,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515055499] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-13 09:50:13,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-13 09:50:13,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [34, 21] total 60 [2024-10-13 09:50:13,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158829157] [2024-10-13 09:50:13,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:50:13,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 09:50:13,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:50:13,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 09:50:13,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=270, Invalid=3390, Unknown=0, NotChecked=0, Total=3660 [2024-10-13 09:50:14,685 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 105 [2024-10-13 09:50:14,686 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 348 transitions, 3589 flow. Second operand has 10 states, 10 states have (on average 70.2) internal successors, (702), 10 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:50:14,686 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:50:14,686 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 105 [2024-10-13 09:50:14,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:50:17,712 INFO L124 PetriNetUnfolderBase]: 1246/4030 cut-off events. [2024-10-13 09:50:17,713 INFO L125 PetriNetUnfolderBase]: For 22776/23053 co-relation queries the response was YES. [2024-10-13 09:50:17,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18434 conditions, 4030 events. 1246/4030 cut-off events. For 22776/23053 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 34223 event pairs, 93 based on Foata normal form. 105/4095 useless extension candidates. Maximal degree in co-relation 18192. Up to 830 conditions per place. [2024-10-13 09:50:17,744 INFO L140 encePairwiseOnDemand]: 84/105 looper letters, 561 selfloop transitions, 146 changer transitions 18/825 dead transitions. [2024-10-13 09:50:17,744 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 825 transitions, 10761 flow [2024-10-13 09:50:17,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-13 09:50:17,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-10-13 09:50:17,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1420 transitions. [2024-10-13 09:50:17,747 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7513227513227513 [2024-10-13 09:50:17,747 INFO L175 Difference]: Start difference. First operand has 244 places, 348 transitions, 3589 flow. Second operand 18 states and 1420 transitions. [2024-10-13 09:50:17,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 825 transitions, 10761 flow [2024-10-13 09:50:17,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 825 transitions, 10222 flow, removed 29 selfloop flow, removed 9 redundant places. [2024-10-13 09:50:17,826 INFO L231 Difference]: Finished difference. Result has 262 places, 475 transitions, 5738 flow [2024-10-13 09:50:17,827 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=3396, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=5738, PETRI_PLACES=262, PETRI_TRANSITIONS=475} [2024-10-13 09:50:17,827 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 158 predicate places. [2024-10-13 09:50:17,827 INFO L471 AbstractCegarLoop]: Abstraction has has 262 places, 475 transitions, 5738 flow [2024-10-13 09:50:17,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 70.2) internal successors, (702), 10 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:50:17,828 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:50:17,828 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:50:17,841 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-13 09:50:18,028 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,SelfDestructingSolverStorable12 [2024-10-13 09:50:18,028 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 09:50:18,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:50:18,029 INFO L85 PathProgramCache]: Analyzing trace with hash -42688785, now seen corresponding path program 5 times [2024-10-13 09:50:18,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:50:18,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275928702] [2024-10-13 09:50:18,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:50:18,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:50:18,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:50:18,787 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:50:18,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:50:18,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275928702] [2024-10-13 09:50:18,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275928702] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:50:18,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:50:18,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-13 09:50:18,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558191288] [2024-10-13 09:50:18,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:50:18,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-13 09:50:18,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:50:18,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-13 09:50:18,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-10-13 09:50:19,114 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 105 [2024-10-13 09:50:19,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 475 transitions, 5738 flow. Second operand has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:50:19,115 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:50:19,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 105 [2024-10-13 09:50:19,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:50:20,790 INFO L124 PetriNetUnfolderBase]: 2112/5737 cut-off events. [2024-10-13 09:50:20,791 INFO L125 PetriNetUnfolderBase]: For 38454/38604 co-relation queries the response was YES. [2024-10-13 09:50:20,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28910 conditions, 5737 events. 2112/5737 cut-off events. For 38454/38604 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 49486 event pairs, 219 based on Foata normal form. 55/5748 useless extension candidates. Maximal degree in co-relation 28657. Up to 1527 conditions per place. [2024-10-13 09:50:20,839 INFO L140 encePairwiseOnDemand]: 79/105 looper letters, 334 selfloop transitions, 308 changer transitions 45/783 dead transitions. [2024-10-13 09:50:20,839 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 783 transitions, 11003 flow [2024-10-13 09:50:20,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-13 09:50:20,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-10-13 09:50:20,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 1630 transitions. [2024-10-13 09:50:20,841 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6749482401656315 [2024-10-13 09:50:20,841 INFO L175 Difference]: Start difference. First operand has 262 places, 475 transitions, 5738 flow. Second operand 23 states and 1630 transitions. [2024-10-13 09:50:20,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 783 transitions, 11003 flow [2024-10-13 09:50:21,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 783 transitions, 10911 flow, removed 46 selfloop flow, removed 0 redundant places. [2024-10-13 09:50:21,031 INFO L231 Difference]: Finished difference. Result has 294 places, 601 transitions, 8435 flow [2024-10-13 09:50:21,032 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=5672, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=475, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=189, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=8435, PETRI_PLACES=294, PETRI_TRANSITIONS=601} [2024-10-13 09:50:21,033 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 190 predicate places. [2024-10-13 09:50:21,033 INFO L471 AbstractCegarLoop]: Abstraction has has 294 places, 601 transitions, 8435 flow [2024-10-13 09:50:21,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:50:21,033 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:50:21,034 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:50:21,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-13 09:50:21,034 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 09:50:21,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:50:21,034 INFO L85 PathProgramCache]: Analyzing trace with hash -171428407, now seen corresponding path program 6 times [2024-10-13 09:50:21,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:50:21,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237053911] [2024-10-13 09:50:21,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:50:21,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:50:21,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:50:25,125 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:50:25,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:50:25,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237053911] [2024-10-13 09:50:25,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237053911] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:50:25,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314473427] [2024-10-13 09:50:25,125 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-13 09:50:25,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:50:25,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:50:25,127 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:50:25,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-13 09:50:25,212 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-10-13 09:50:25,213 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:50:25,214 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-10-13 09:50:25,216 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:50:25,222 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 16 treesize of output 12 [2024-10-13 09:50:25,335 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 11 [2024-10-13 09:50:25,377 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-10-13 09:50:25,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2024-10-13 09:50:25,418 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 28 treesize of output 27 [2024-10-13 09:50:25,466 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-10-13 09:50:25,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-10-13 09:50:25,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 09:50:25,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 09:50:25,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 09:50:25,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 09:50:25,674 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:50:25,674 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 60 [2024-10-13 09:50:25,714 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:50:25,714 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 09:50:25,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [314473427] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:50:25,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 09:50:25,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [32] total 40 [2024-10-13 09:50:25,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723012601] [2024-10-13 09:50:25,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:50:25,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 09:50:25,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:50:25,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 09:50:25,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=1504, Unknown=0, NotChecked=0, Total=1640 [2024-10-13 09:50:25,936 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 105 [2024-10-13 09:50:25,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 601 transitions, 8435 flow. Second operand has 10 states, 10 states have (on average 72.0) internal successors, (720), 10 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:50:25,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:50:25,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 105 [2024-10-13 09:50:25,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:50:27,790 INFO L124 PetriNetUnfolderBase]: 2493/7563 cut-off events. [2024-10-13 09:50:27,790 INFO L125 PetriNetUnfolderBase]: For 65646/66033 co-relation queries the response was YES. [2024-10-13 09:50:27,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41548 conditions, 7563 events. 2493/7563 cut-off events. For 65646/66033 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 74325 event pairs, 237 based on Foata normal form. 103/7566 useless extension candidates. Maximal degree in co-relation 41283. Up to 1759 conditions per place. [2024-10-13 09:50:27,846 INFO L140 encePairwiseOnDemand]: 85/105 looper letters, 638 selfloop transitions, 253 changer transitions 29/1042 dead transitions. [2024-10-13 09:50:27,846 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 1042 transitions, 16444 flow [2024-10-13 09:50:27,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-13 09:50:27,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-13 09:50:27,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 923 transitions. [2024-10-13 09:50:27,847 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7991341991341991 [2024-10-13 09:50:27,847 INFO L175 Difference]: Start difference. First operand has 294 places, 601 transitions, 8435 flow. Second operand 11 states and 923 transitions. [2024-10-13 09:50:27,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 1042 transitions, 16444 flow [2024-10-13 09:50:28,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 1042 transitions, 16136 flow, removed 88 selfloop flow, removed 2 redundant places. [2024-10-13 09:50:28,169 INFO L231 Difference]: Finished difference. Result has 309 places, 747 transitions, 11849 flow [2024-10-13 09:50:28,170 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=8210, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=601, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=126, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=389, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=11849, PETRI_PLACES=309, PETRI_TRANSITIONS=747} [2024-10-13 09:50:28,170 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 205 predicate places. [2024-10-13 09:50:28,170 INFO L471 AbstractCegarLoop]: Abstraction has has 309 places, 747 transitions, 11849 flow [2024-10-13 09:50:28,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 72.0) internal successors, (720), 10 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:50:28,171 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:50:28,171 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:50:28,183 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-13 09:50:28,371 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,SelfDestructingSolverStorable14 [2024-10-13 09:50:28,371 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 09:50:28,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:50:28,372 INFO L85 PathProgramCache]: Analyzing trace with hash 272812435, now seen corresponding path program 7 times [2024-10-13 09:50:28,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:50:28,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699856297] [2024-10-13 09:50:28,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:50:28,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:50:28,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:50:32,216 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:50:32,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:50:32,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699856297] [2024-10-13 09:50:32,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699856297] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:50:32,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129672452] [2024-10-13 09:50:32,216 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-13 09:50:32,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:50:32,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:50:32,218 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) [2024-10-13 09:50:32,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-13 09:50:32,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:50:32,326 INFO L255 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-10-13 09:50:32,328 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:50:32,569 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 16 treesize of output 12 [2024-10-13 09:50:32,610 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 11 [2024-10-13 09:50:32,678 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-10-13 09:50:32,679 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2024-10-13 09:50:32,721 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 28 treesize of output 27 [2024-10-13 09:50:32,769 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-10-13 09:50:32,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-10-13 09:50:32,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 09:50:32,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 09:50:32,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 09:50:32,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 09:50:32,955 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:50:32,955 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 60 [2024-10-13 09:50:33,005 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-13 09:50:33,006 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:50:33,874 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 49 treesize of output 47 [2024-10-13 09:50:33,956 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 21 treesize of output 19 [2024-10-13 09:50:33,958 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 15 treesize of output 8 [2024-10-13 09:50:33,960 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:50:33,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129672452] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-13 09:50:33,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-13 09:50:33,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [32, 25] total 63 [2024-10-13 09:50:33,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908297909] [2024-10-13 09:50:33,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:50:33,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 09:50:33,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:50:33,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 09:50:33,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=3787, Unknown=0, NotChecked=0, Total=4032 [2024-10-13 09:50:35,479 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 105 [2024-10-13 09:50:35,480 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 747 transitions, 11849 flow. Second operand has 10 states, 10 states have (on average 70.2) internal successors, (702), 10 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:50:35,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:50:35,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 105 [2024-10-13 09:50:35,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:50:39,602 INFO L124 PetriNetUnfolderBase]: 2615/7937 cut-off events. [2024-10-13 09:50:39,602 INFO L125 PetriNetUnfolderBase]: For 86191/86488 co-relation queries the response was YES. [2024-10-13 09:50:39,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46669 conditions, 7937 events. 2615/7937 cut-off events. For 86191/86488 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 78140 event pairs, 188 based on Foata normal form. 32/7889 useless extension candidates. Maximal degree in co-relation 46396. Up to 3393 conditions per place. [2024-10-13 09:50:39,679 INFO L140 encePairwiseOnDemand]: 81/105 looper letters, 617 selfloop transitions, 368 changer transitions 2/1100 dead transitions. [2024-10-13 09:50:39,679 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 1100 transitions, 19276 flow [2024-10-13 09:50:39,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-13 09:50:39,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-10-13 09:50:39,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1445 transitions. [2024-10-13 09:50:39,681 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7243107769423559 [2024-10-13 09:50:39,681 INFO L175 Difference]: Start difference. First operand has 309 places, 747 transitions, 11849 flow. Second operand 19 states and 1445 transitions. [2024-10-13 09:50:39,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 1100 transitions, 19276 flow [2024-10-13 09:50:40,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 1100 transitions, 18725 flow, removed 30 selfloop flow, removed 2 redundant places. [2024-10-13 09:50:40,222 INFO L231 Difference]: Finished difference. Result has 336 places, 907 transitions, 15686 flow [2024-10-13 09:50:40,223 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=11444, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=747, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=214, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=439, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=15686, PETRI_PLACES=336, PETRI_TRANSITIONS=907} [2024-10-13 09:50:40,223 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 232 predicate places. [2024-10-13 09:50:40,223 INFO L471 AbstractCegarLoop]: Abstraction has has 336 places, 907 transitions, 15686 flow [2024-10-13 09:50:40,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 70.2) internal successors, (702), 10 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:50:40,223 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:50:40,223 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:50:40,236 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-13 09:50:40,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-13 09:50:40,424 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 09:50:40,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:50:40,425 INFO L85 PathProgramCache]: Analyzing trace with hash 430712687, now seen corresponding path program 8 times [2024-10-13 09:50:40,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:50:40,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570486176] [2024-10-13 09:50:40,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:50:40,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:50:40,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:50:44,562 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:50:44,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:50:44,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570486176] [2024-10-13 09:50:44,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570486176] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:50:44,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122951756] [2024-10-13 09:50:44,563 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 09:50:44,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:50:44,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:50:44,564 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:50:44,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-13 09:50:44,649 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 09:50:44,649 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:50:44,650 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-10-13 09:50:44,652 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:50:44,655 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 16 treesize of output 12 [2024-10-13 09:50:44,750 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 11 [2024-10-13 09:50:44,784 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 28 treesize of output 27 [2024-10-13 09:50:44,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-10-13 09:50:44,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-10-13 09:50:44,932 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-10-13 09:50:44,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2024-10-13 09:50:45,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 09:50:45,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 09:50:45,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 09:50:45,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 09:50:45,058 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:50:45,058 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 60 [2024-10-13 09:50:45,091 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:50:45,091 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 09:50:45,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122951756] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:50:45,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 09:50:45,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [32] total 40 [2024-10-13 09:50:45,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692862360] [2024-10-13 09:50:45,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:50:45,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 09:50:45,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:50:45,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 09:50:45,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=1497, Unknown=0, NotChecked=0, Total=1640 [2024-10-13 09:50:45,247 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 105 [2024-10-13 09:50:45,248 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 907 transitions, 15686 flow. Second operand has 10 states, 10 states have (on average 72.0) internal successors, (720), 10 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:50:45,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:50:45,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 105 [2024-10-13 09:50:45,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:50:47,504 INFO L124 PetriNetUnfolderBase]: 2735/8565 cut-off events. [2024-10-13 09:50:47,504 INFO L125 PetriNetUnfolderBase]: For 113629/114069 co-relation queries the response was YES. [2024-10-13 09:50:47,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52501 conditions, 8565 events. 2735/8565 cut-off events. For 113629/114069 co-relation queries the response was YES. Maximal size of possible extension queue 388. Compared 88166 event pairs, 246 based on Foata normal form. 157/8617 useless extension candidates. Maximal degree in co-relation 52217. Up to 1952 conditions per place. [2024-10-13 09:50:47,591 INFO L140 encePairwiseOnDemand]: 85/105 looper letters, 647 selfloop transitions, 375 changer transitions 36/1194 dead transitions. [2024-10-13 09:50:47,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 1194 transitions, 21922 flow [2024-10-13 09:50:47,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-13 09:50:47,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-13 09:50:47,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 924 transitions. [2024-10-13 09:50:47,592 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8 [2024-10-13 09:50:47,593 INFO L175 Difference]: Start difference. First operand has 336 places, 907 transitions, 15686 flow. Second operand 11 states and 924 transitions. [2024-10-13 09:50:47,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 1194 transitions, 21922 flow [2024-10-13 09:50:48,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 1194 transitions, 21643 flow, removed 130 selfloop flow, removed 1 redundant places. [2024-10-13 09:50:48,311 INFO L231 Difference]: Finished difference. Result has 350 places, 984 transitions, 18090 flow [2024-10-13 09:50:48,311 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=15409, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=907, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=302, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=560, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=18090, PETRI_PLACES=350, PETRI_TRANSITIONS=984} [2024-10-13 09:50:48,312 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 246 predicate places. [2024-10-13 09:50:48,312 INFO L471 AbstractCegarLoop]: Abstraction has has 350 places, 984 transitions, 18090 flow [2024-10-13 09:50:48,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 72.0) internal successors, (720), 10 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:50:48,312 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:50:48,313 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:50:48,325 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-13 09:50:48,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-13 09:50:48,513 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 09:50:48,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:50:48,514 INFO L85 PathProgramCache]: Analyzing trace with hash 302861638, now seen corresponding path program 2 times [2024-10-13 09:50:48,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:50:48,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301458036] [2024-10-13 09:50:48,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:50:48,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:50:48,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:50:48,957 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:50:48,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:50:48,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301458036] [2024-10-13 09:50:48,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301458036] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:50:48,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:50:48,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-13 09:50:48,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932443528] [2024-10-13 09:50:48,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:50:48,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 09:50:48,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:50:48,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 09:50:48,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-10-13 09:50:49,214 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 105 [2024-10-13 09:50:49,214 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 984 transitions, 18090 flow. Second operand has 10 states, 10 states have (on average 77.4) internal successors, (774), 10 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:50:49,214 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:50:49,214 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 105 [2024-10-13 09:50:49,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:50:51,490 INFO L124 PetriNetUnfolderBase]: 2358/7817 cut-off events. [2024-10-13 09:50:51,491 INFO L125 PetriNetUnfolderBase]: For 132033/132963 co-relation queries the response was YES. [2024-10-13 09:50:51,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50975 conditions, 7817 events. 2358/7817 cut-off events. For 132033/132963 co-relation queries the response was YES. Maximal size of possible extension queue 369. Compared 81578 event pairs, 128 based on Foata normal form. 234/8001 useless extension candidates. Maximal degree in co-relation 50684. Up to 2043 conditions per place. [2024-10-13 09:50:51,583 INFO L140 encePairwiseOnDemand]: 88/105 looper letters, 656 selfloop transitions, 231 changer transitions 23/1159 dead transitions. [2024-10-13 09:50:51,583 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 1159 transitions, 22435 flow [2024-10-13 09:50:51,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-13 09:50:51,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-10-13 09:50:51,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1325 transitions. [2024-10-13 09:50:51,585 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7886904761904762 [2024-10-13 09:50:51,585 INFO L175 Difference]: Start difference. First operand has 350 places, 984 transitions, 18090 flow. Second operand 16 states and 1325 transitions. [2024-10-13 09:50:51,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 1159 transitions, 22435 flow [2024-10-13 09:50:52,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 1159 transitions, 22176 flow, removed 62 selfloop flow, removed 4 redundant places. [2024-10-13 09:50:52,523 INFO L231 Difference]: Finished difference. Result has 371 places, 1042 transitions, 19775 flow [2024-10-13 09:50:52,524 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=17897, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=984, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=179, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=772, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=19775, PETRI_PLACES=371, PETRI_TRANSITIONS=1042} [2024-10-13 09:50:52,524 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 267 predicate places. [2024-10-13 09:50:52,524 INFO L471 AbstractCegarLoop]: Abstraction has has 371 places, 1042 transitions, 19775 flow [2024-10-13 09:50:52,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.4) internal successors, (774), 10 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:50:52,524 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:50:52,525 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:50:52,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-13 09:50:52,525 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 09:50:52,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:50:52,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1087230065, now seen corresponding path program 9 times [2024-10-13 09:50:52,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:50:52,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180577468] [2024-10-13 09:50:52,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:50:52,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:50:52,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat