./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/09-regions_18-nested_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4a390ef5 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/09-regions_18-nested_rc.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 bf117fc0bf8ae8b9ef4bb89156c7168763fcd2ba3d8567cd686924f85ad04dca --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 15:24:30,767 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:24:30,844 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-24 15:24:30,852 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:24:30,854 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:24:30,877 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:24:30,878 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:24:30,878 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:24:30,879 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:24:30,879 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:24:30,879 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:24:30,880 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:24:30,880 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:24:30,882 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:24:30,882 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:24:30,882 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:24:30,883 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:24:30,883 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:24:30,883 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:24:30,884 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:24:30,884 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:24:30,888 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:24:30,889 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-24 15:24:30,889 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:24:30,889 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:24:30,889 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:24:30,890 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:24:30,890 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:24:30,890 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:24:30,890 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:24:30,890 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:24:30,891 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:24:30,891 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:24:30,891 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:24:30,891 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 15:24:30,892 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 15:24:30,892 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 15:24:30,892 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:24:30,895 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:24:30,895 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:24:30,895 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:24:30,895 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf117fc0bf8ae8b9ef4bb89156c7168763fcd2ba3d8567cd686924f85ad04dca [2024-10-24 15:24:31,168 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:24:31,195 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:24:31,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:24:31,199 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:24:31,200 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:24:31,201 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_18-nested_rc.i [2024-10-24 15:24:32,752 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:24:33,011 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:24:33,012 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_18-nested_rc.i [2024-10-24 15:24:33,039 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63661f2d6/c5ca0df42c8b483cba592232e2c866b0/FLAG9b1be0169 [2024-10-24 15:24:33,056 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63661f2d6/c5ca0df42c8b483cba592232e2c866b0 [2024-10-24 15:24:33,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:24:33,060 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:24:33,062 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:24:33,062 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:24:33,067 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:24:33,067 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:24:33" (1/1) ... [2024-10-24 15:24:33,068 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23c9cba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:24:33, skipping insertion in model container [2024-10-24 15:24:33,068 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:24:33" (1/1) ... [2024-10-24 15:24:33,119 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:24:33,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:24:33,807 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 15:24:33,882 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:24:33,965 INFO L204 MainTranslator]: Completed translation [2024-10-24 15:24:33,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:24:33 WrapperNode [2024-10-24 15:24:33,966 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:24:33,967 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 15:24:33,967 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 15:24:33,968 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 15:24:33,974 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:24:33" (1/1) ... [2024-10-24 15:24:33,999 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:24:33" (1/1) ... [2024-10-24 15:24:34,042 INFO L138 Inliner]: procedures = 370, calls = 27, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 231 [2024-10-24 15:24:34,043 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 15:24:34,044 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 15:24:34,044 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 15:24:34,044 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 15:24:34,054 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:24:33" (1/1) ... [2024-10-24 15:24:34,054 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:24:33" (1/1) ... [2024-10-24 15:24:34,060 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:24:33" (1/1) ... [2024-10-24 15:24:34,061 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:24:33" (1/1) ... [2024-10-24 15:24:34,078 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:24:33" (1/1) ... [2024-10-24 15:24:34,082 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:24:33" (1/1) ... [2024-10-24 15:24:34,085 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:24:33" (1/1) ... [2024-10-24 15:24:34,087 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:24:33" (1/1) ... [2024-10-24 15:24:34,092 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 15:24:34,093 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 15:24:34,094 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 15:24:34,094 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 15:24:34,095 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:24:33" (1/1) ... [2024-10-24 15:24:34,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:24:34,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:24:34,148 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) [2024-10-24 15:24:34,159 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 [2024-10-24 15:24:34,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-24 15:24:34,206 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-24 15:24:34,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-24 15:24:34,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-24 15:24:34,207 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-24 15:24:34,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-24 15:24:34,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 15:24:34,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-24 15:24:34,208 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-24 15:24:34,209 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-24 15:24:34,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 15:24:34,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 15:24:34,211 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 15:24:34,432 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 15:24:34,436 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 15:24:35,001 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 15:24:35,001 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 15:24:35,057 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 15:24:35,058 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 15:24:35,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:24:35 BoogieIcfgContainer [2024-10-24 15:24:35,062 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 15:24:35,064 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 15:24:35,066 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 15:24:35,070 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 15:24:35,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:24:33" (1/3) ... [2024-10-24 15:24:35,072 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d046eae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:24:35, skipping insertion in model container [2024-10-24 15:24:35,072 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:24:33" (2/3) ... [2024-10-24 15:24:35,073 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d046eae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:24:35, skipping insertion in model container [2024-10-24 15:24:35,073 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:24:35" (3/3) ... [2024-10-24 15:24:35,076 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_18-nested_rc.i [2024-10-24 15:24:35,096 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 15:24:35,097 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-10-24 15:24:35,097 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 15:24:35,218 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-24 15:24:35,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 273 places, 273 transitions, 550 flow [2024-10-24 15:24:35,390 INFO L124 PetriNetUnfolderBase]: 4/272 cut-off events. [2024-10-24 15:24:35,391 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:24:35,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 272 events. 4/272 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 113 event pairs, 0 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 144. Up to 2 conditions per place. [2024-10-24 15:24:35,401 INFO L82 GeneralOperation]: Start removeDead. Operand has 273 places, 273 transitions, 550 flow [2024-10-24 15:24:35,410 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 272 places, 272 transitions, 547 flow [2024-10-24 15:24:35,424 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:24:35,435 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;@2852ee33, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:24:35,436 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-10-24 15:24:35,448 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:24:35,449 INFO L124 PetriNetUnfolderBase]: 3/44 cut-off events. [2024-10-24 15:24:35,449 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:24:35,450 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:24:35,451 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] [2024-10-24 15:24:35,451 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-24 15:24:35,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:24:35,457 INFO L85 PathProgramCache]: Analyzing trace with hash 598431586, now seen corresponding path program 1 times [2024-10-24 15:24:35,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:24:35,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801267418] [2024-10-24 15:24:35,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:24:35,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:24:35,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:24:35,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:24:35,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:24:35,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801267418] [2024-10-24 15:24:35,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801267418] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:24:35,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:24:35,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 15:24:35,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390235187] [2024-10-24 15:24:35,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:24:35,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:24:35,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:24:35,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:24:35,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:24:35,878 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 273 [2024-10-24 15:24:35,885 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 272 transitions, 547 flow. Second operand has 3 states, 3 states have (on average 260.3333333333333) internal successors, (781), 3 states have internal predecessors, (781), 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) [2024-10-24 15:24:35,886 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:24:35,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 273 [2024-10-24 15:24:35,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:24:35,989 INFO L124 PetriNetUnfolderBase]: 7/349 cut-off events. [2024-10-24 15:24:35,989 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 15:24:35,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 378 conditions, 349 events. 7/349 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 403 event pairs, 6 based on Foata normal form. 5/324 useless extension candidates. Maximal degree in co-relation 219. Up to 24 conditions per place. [2024-10-24 15:24:35,993 INFO L140 encePairwiseOnDemand]: 267/273 looper letters, 10 selfloop transitions, 2 changer transitions 1/270 dead transitions. [2024-10-24 15:24:35,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 270 transitions, 567 flow [2024-10-24 15:24:35,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:24:35,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:24:36,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 794 transitions. [2024-10-24 15:24:36,015 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9694749694749695 [2024-10-24 15:24:36,017 INFO L175 Difference]: Start difference. First operand has 272 places, 272 transitions, 547 flow. Second operand 3 states and 794 transitions. [2024-10-24 15:24:36,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 270 transitions, 567 flow [2024-10-24 15:24:36,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 270 transitions, 566 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:24:36,032 INFO L231 Difference]: Finished difference. Result has 274 places, 269 transitions, 550 flow [2024-10-24 15:24:36,035 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=550, PETRI_PLACES=274, PETRI_TRANSITIONS=269} [2024-10-24 15:24:36,041 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 2 predicate places. [2024-10-24 15:24:36,042 INFO L471 AbstractCegarLoop]: Abstraction has has 274 places, 269 transitions, 550 flow [2024-10-24 15:24:36,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 260.3333333333333) internal successors, (781), 3 states have internal predecessors, (781), 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) [2024-10-24 15:24:36,043 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:24:36,043 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:24:36,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 15:24:36,043 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-24 15:24:36,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:24:36,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1023670055, now seen corresponding path program 1 times [2024-10-24 15:24:36,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:24:36,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417158020] [2024-10-24 15:24:36,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:24:36,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:24:36,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:24:36,318 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:24:36,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:24:36,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417158020] [2024-10-24 15:24:36,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417158020] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:24:36,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228729429] [2024-10-24 15:24:36,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:24:36,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:24:36,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:24:36,323 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) [2024-10-24 15:24:36,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 15:24:36,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:24:36,432 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 15:24:36,437 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:24:36,499 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:24:36,503 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:24:36,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:24:36,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1228729429] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:24:36,556 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 15:24:36,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-24 15:24:36,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693556691] [2024-10-24 15:24:36,558 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 15:24:36,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 15:24:36,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:24:36,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 15:24:36,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-24 15:24:36,600 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 273 [2024-10-24 15:24:36,603 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 269 transitions, 550 flow. Second operand has 10 states, 10 states have (on average 257.8) internal successors, (2578), 10 states have internal predecessors, (2578), 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) [2024-10-24 15:24:36,604 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:24:36,604 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 273 [2024-10-24 15:24:36,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:24:36,751 INFO L124 PetriNetUnfolderBase]: 7/355 cut-off events. [2024-10-24 15:24:36,752 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 15:24:36,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 402 conditions, 355 events. 7/355 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 397 event pairs, 6 based on Foata normal form. 2/328 useless extension candidates. Maximal degree in co-relation 377. Up to 24 conditions per place. [2024-10-24 15:24:36,755 INFO L140 encePairwiseOnDemand]: 267/273 looper letters, 14 selfloop transitions, 9 changer transitions 0/277 dead transitions. [2024-10-24 15:24:36,755 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 277 transitions, 614 flow [2024-10-24 15:24:36,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 15:24:36,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 15:24:36,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2329 transitions. [2024-10-24 15:24:36,765 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9479039479039479 [2024-10-24 15:24:36,765 INFO L175 Difference]: Start difference. First operand has 274 places, 269 transitions, 550 flow. Second operand 9 states and 2329 transitions. [2024-10-24 15:24:36,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 277 transitions, 614 flow [2024-10-24 15:24:36,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 277 transitions, 612 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:24:36,777 INFO L231 Difference]: Finished difference. Result has 283 places, 275 transitions, 598 flow [2024-10-24 15:24:36,778 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=548, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=598, PETRI_PLACES=283, PETRI_TRANSITIONS=275} [2024-10-24 15:24:36,778 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 11 predicate places. [2024-10-24 15:24:36,779 INFO L471 AbstractCegarLoop]: Abstraction has has 283 places, 275 transitions, 598 flow [2024-10-24 15:24:36,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 257.8) internal successors, (2578), 10 states have internal predecessors, (2578), 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) [2024-10-24 15:24:36,781 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:24:36,781 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] [2024-10-24 15:24:36,800 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-24 15:24:36,982 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 [2024-10-24 15:24:36,983 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-24 15:24:36,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:24:36,984 INFO L85 PathProgramCache]: Analyzing trace with hash -943925241, now seen corresponding path program 2 times [2024-10-24 15:24:36,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:24:36,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649889831] [2024-10-24 15:24:36,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:24:36,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:24:37,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:24:37,171 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:24:37,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:24:37,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649889831] [2024-10-24 15:24:37,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649889831] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:24:37,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380892040] [2024-10-24 15:24:37,173 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 15:24:37,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:24:37,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:24:37,175 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) [2024-10-24 15:24:37,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 15:24:37,268 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 15:24:37,269 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:24:37,270 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-24 15:24:37,273 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:24:37,322 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-24 15:24:37,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-10-24 15:24:37,387 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:24:37,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-10-24 15:24:37,437 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:24:37,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-10-24 15:24:37,473 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-24 15:24:37,474 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:24:37,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1380892040] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:24:37,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 15:24:37,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-10-24 15:24:37,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627751825] [2024-10-24 15:24:37,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:24:37,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:24:37,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:24:37,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:24:37,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-10-24 15:24:37,965 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 273 [2024-10-24 15:24:37,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 275 transitions, 598 flow. Second operand has 6 states, 6 states have (on average 188.33333333333334) internal successors, (1130), 6 states have internal predecessors, (1130), 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) [2024-10-24 15:24:37,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:24:37,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 273 [2024-10-24 15:24:37,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:24:38,471 INFO L124 PetriNetUnfolderBase]: 365/1639 cut-off events. [2024-10-24 15:24:38,471 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-24 15:24:38,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2481 conditions, 1639 events. 365/1639 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9287 event pairs, 364 based on Foata normal form. 0/1514 useless extension candidates. Maximal degree in co-relation 2428. Up to 800 conditions per place. [2024-10-24 15:24:38,485 INFO L140 encePairwiseOnDemand]: 261/273 looper letters, 71 selfloop transitions, 10 changer transitions 0/273 dead transitions. [2024-10-24 15:24:38,487 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 273 transitions, 756 flow [2024-10-24 15:24:38,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:24:38,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:24:38,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1205 transitions. [2024-10-24 15:24:38,490 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7356532356532357 [2024-10-24 15:24:38,490 INFO L175 Difference]: Start difference. First operand has 283 places, 275 transitions, 598 flow. Second operand 6 states and 1205 transitions. [2024-10-24 15:24:38,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 273 transitions, 756 flow [2024-10-24 15:24:38,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 273 transitions, 750 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-24 15:24:38,497 INFO L231 Difference]: Finished difference. Result has 285 places, 273 transitions, 608 flow [2024-10-24 15:24:38,497 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=608, PETRI_PLACES=285, PETRI_TRANSITIONS=273} [2024-10-24 15:24:38,499 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 13 predicate places. [2024-10-24 15:24:38,499 INFO L471 AbstractCegarLoop]: Abstraction has has 285 places, 273 transitions, 608 flow [2024-10-24 15:24:38,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 188.33333333333334) internal successors, (1130), 6 states have internal predecessors, (1130), 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) [2024-10-24 15:24:38,500 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:24:38,501 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:24:38,519 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 15:24:38,701 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 [2024-10-24 15:24:38,701 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-24 15:24:38,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:24:38,702 INFO L85 PathProgramCache]: Analyzing trace with hash -359144855, now seen corresponding path program 1 times [2024-10-24 15:24:38,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:24:38,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529018712] [2024-10-24 15:24:38,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:24:38,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:24:38,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:24:38,921 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:24:38,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:24:38,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529018712] [2024-10-24 15:24:38,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529018712] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:24:38,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641348297] [2024-10-24 15:24:38,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:24:38,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:24:38,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:24:38,925 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) [2024-10-24 15:24:38,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 15:24:39,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:24:39,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 15:24:39,031 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:24:39,081 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:24:39,081 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:24:39,186 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:24:39,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [641348297] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:24:39,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 15:24:39,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-24 15:24:39,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759491255] [2024-10-24 15:24:39,188 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 15:24:39,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-24 15:24:39,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:24:39,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-24 15:24:39,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-24 15:24:39,227 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 273 [2024-10-24 15:24:39,233 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 273 transitions, 608 flow. Second operand has 18 states, 18 states have (on average 257.8888888888889) internal successors, (4642), 18 states have internal predecessors, (4642), 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) [2024-10-24 15:24:39,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:24:39,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 273 [2024-10-24 15:24:39,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:24:39,501 INFO L124 PetriNetUnfolderBase]: 7/373 cut-off events. [2024-10-24 15:24:39,501 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2024-10-24 15:24:39,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 489 conditions, 373 events. 7/373 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 398 event pairs, 6 based on Foata normal form. 4/350 useless extension candidates. Maximal degree in co-relation 363. Up to 24 conditions per place. [2024-10-24 15:24:39,503 INFO L140 encePairwiseOnDemand]: 267/273 looper letters, 18 selfloop transitions, 21 changer transitions 0/291 dead transitions. [2024-10-24 15:24:39,504 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 291 transitions, 774 flow [2024-10-24 15:24:39,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-24 15:24:39,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-24 15:24:39,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5419 transitions. [2024-10-24 15:24:39,515 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9452293738008024 [2024-10-24 15:24:39,515 INFO L175 Difference]: Start difference. First operand has 285 places, 273 transitions, 608 flow. Second operand 21 states and 5419 transitions. [2024-10-24 15:24:39,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 291 transitions, 774 flow [2024-10-24 15:24:39,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 291 transitions, 754 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 15:24:39,522 INFO L231 Difference]: Finished difference. Result has 305 places, 286 transitions, 718 flow [2024-10-24 15:24:39,523 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=718, PETRI_PLACES=305, PETRI_TRANSITIONS=286} [2024-10-24 15:24:39,524 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 33 predicate places. [2024-10-24 15:24:39,524 INFO L471 AbstractCegarLoop]: Abstraction has has 305 places, 286 transitions, 718 flow [2024-10-24 15:24:39,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 257.8888888888889) internal successors, (4642), 18 states have internal predecessors, (4642), 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) [2024-10-24 15:24:39,527 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:24:39,527 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] [2024-10-24 15:24:39,545 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-24 15:24:39,731 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 [2024-10-24 15:24:39,732 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-24 15:24:39,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:24:39,733 INFO L85 PathProgramCache]: Analyzing trace with hash 377429033, now seen corresponding path program 2 times [2024-10-24 15:24:39,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:24:39,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797274766] [2024-10-24 15:24:39,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:24:39,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:24:39,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:24:40,131 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:24:40,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:24:40,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797274766] [2024-10-24 15:24:40,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797274766] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:24:40,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293306843] [2024-10-24 15:24:40,132 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 15:24:40,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:24:40,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:24:40,137 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) [2024-10-24 15:24:40,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 15:24:40,236 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 15:24:40,237 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:24:40,238 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-24 15:24:40,241 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:24:40,256 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 13 treesize of output 9 [2024-10-24 15:24:40,275 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 23 treesize of output 22 [2024-10-24 15:24:40,303 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:24:40,303 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 32 treesize of output 34 [2024-10-24 15:24:40,348 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:24:40,348 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 41 treesize of output 46 [2024-10-24 15:24:40,389 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-24 15:24:40,391 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:24:40,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293306843] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:24:40,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 15:24:40,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-10-24 15:24:40,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626891070] [2024-10-24 15:24:40,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:24:40,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:24:40,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:24:40,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:24:40,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-24 15:24:40,873 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 273 [2024-10-24 15:24:40,874 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 286 transitions, 718 flow. Second operand has 6 states, 6 states have (on average 188.33333333333334) internal successors, (1130), 6 states have internal predecessors, (1130), 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) [2024-10-24 15:24:40,874 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:24:40,875 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 273 [2024-10-24 15:24:40,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:24:41,257 INFO L124 PetriNetUnfolderBase]: 365/1657 cut-off events. [2024-10-24 15:24:41,257 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2024-10-24 15:24:41,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2562 conditions, 1657 events. 365/1657 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9243 event pairs, 364 based on Foata normal form. 0/1534 useless extension candidates. Maximal degree in co-relation 2430. Up to 800 conditions per place. [2024-10-24 15:24:41,266 INFO L140 encePairwiseOnDemand]: 261/273 looper letters, 71 selfloop transitions, 10 changer transitions 0/284 dead transitions. [2024-10-24 15:24:41,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 284 transitions, 876 flow [2024-10-24 15:24:41,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:24:41,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:24:41,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1205 transitions. [2024-10-24 15:24:41,269 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7356532356532357 [2024-10-24 15:24:41,269 INFO L175 Difference]: Start difference. First operand has 305 places, 286 transitions, 718 flow. Second operand 6 states and 1205 transitions. [2024-10-24 15:24:41,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 284 transitions, 876 flow [2024-10-24 15:24:41,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 284 transitions, 852 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-10-24 15:24:41,276 INFO L231 Difference]: Finished difference. Result has 302 places, 284 transitions, 710 flow [2024-10-24 15:24:41,277 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=690, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=710, PETRI_PLACES=302, PETRI_TRANSITIONS=284} [2024-10-24 15:24:41,278 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 30 predicate places. [2024-10-24 15:24:41,278 INFO L471 AbstractCegarLoop]: Abstraction has has 302 places, 284 transitions, 710 flow [2024-10-24 15:24:41,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 188.33333333333334) internal successors, (1130), 6 states have internal predecessors, (1130), 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) [2024-10-24 15:24:41,279 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:24:41,282 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:24:41,308 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-24 15:24:41,482 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 [2024-10-24 15:24:41,482 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-24 15:24:41,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:24:41,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1054632777, now seen corresponding path program 1 times [2024-10-24 15:24:41,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:24:41,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818305861] [2024-10-24 15:24:41,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:24:41,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:24:41,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:24:41,825 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:24:41,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:24:41,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818305861] [2024-10-24 15:24:41,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818305861] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:24:41,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142594717] [2024-10-24 15:24:41,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:24:41,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:24:41,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:24:41,828 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) [2024-10-24 15:24:41,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-24 15:24:41,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:24:41,956 INFO L255 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-24 15:24:41,958 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:24:42,088 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:24:42,088 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:24:42,295 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:24:42,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142594717] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:24:42,296 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 15:24:42,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-10-24 15:24:42,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115169137] [2024-10-24 15:24:42,296 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 15:24:42,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-24 15:24:42,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:24:42,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-24 15:24:42,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-10-24 15:24:42,340 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 273 [2024-10-24 15:24:42,347 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 284 transitions, 710 flow. Second operand has 23 states, 23 states have (on average 258.0) internal successors, (5934), 23 states have internal predecessors, (5934), 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) [2024-10-24 15:24:42,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:24:42,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 273 [2024-10-24 15:24:42,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:24:42,703 INFO L124 PetriNetUnfolderBase]: 7/386 cut-off events. [2024-10-24 15:24:42,703 INFO L125 PetriNetUnfolderBase]: For 140/140 co-relation queries the response was YES. [2024-10-24 15:24:42,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 577 conditions, 386 events. 7/386 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 399 event pairs, 6 based on Foata normal form. 3/364 useless extension candidates. Maximal degree in co-relation 368. Up to 24 conditions per place. [2024-10-24 15:24:42,705 INFO L140 encePairwiseOnDemand]: 267/273 looper letters, 21 selfloop transitions, 30 changer transitions 0/301 dead transitions. [2024-10-24 15:24:42,705 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 301 transitions, 934 flow [2024-10-24 15:24:42,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-24 15:24:42,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-10-24 15:24:42,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 7734 transitions. [2024-10-24 15:24:42,719 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9443223443223443 [2024-10-24 15:24:42,720 INFO L175 Difference]: Start difference. First operand has 302 places, 284 transitions, 710 flow. Second operand 30 states and 7734 transitions. [2024-10-24 15:24:42,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 301 transitions, 934 flow [2024-10-24 15:24:42,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 301 transitions, 914 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 15:24:42,730 INFO L231 Difference]: Finished difference. Result has 330 places, 294 transitions, 842 flow [2024-10-24 15:24:42,731 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=690, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=842, PETRI_PLACES=330, PETRI_TRANSITIONS=294} [2024-10-24 15:24:42,732 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 58 predicate places. [2024-10-24 15:24:42,732 INFO L471 AbstractCegarLoop]: Abstraction has has 330 places, 294 transitions, 842 flow [2024-10-24 15:24:42,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 258.0) internal successors, (5934), 23 states have internal predecessors, (5934), 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) [2024-10-24 15:24:42,738 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:24:42,738 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] [2024-10-24 15:24:42,757 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-24 15:24:42,942 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 [2024-10-24 15:24:42,943 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-24 15:24:42,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:24:42,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1927391996, now seen corresponding path program 2 times [2024-10-24 15:24:42,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:24:42,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621086749] [2024-10-24 15:24:42,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:24:42,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:24:42,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:24:43,553 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-24 15:24:43,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:24:43,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621086749] [2024-10-24 15:24:43,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621086749] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:24:43,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:24:43,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:24:43,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62315241] [2024-10-24 15:24:43,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:24:43,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:24:43,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:24:43,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:24:43,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:24:43,959 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 273 [2024-10-24 15:24:43,961 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 294 transitions, 842 flow. Second operand has 6 states, 6 states have (on average 185.83333333333334) internal successors, (1115), 6 states have internal predecessors, (1115), 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) [2024-10-24 15:24:43,961 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:24:43,961 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 273 [2024-10-24 15:24:43,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:24:44,322 INFO L124 PetriNetUnfolderBase]: 417/1851 cut-off events. [2024-10-24 15:24:44,322 INFO L125 PetriNetUnfolderBase]: For 118/118 co-relation queries the response was YES. [2024-10-24 15:24:44,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2933 conditions, 1851 events. 417/1851 cut-off events. For 118/118 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 10712 event pairs, 416 based on Foata normal form. 0/1719 useless extension candidates. Maximal degree in co-relation 2722. Up to 914 conditions per place. [2024-10-24 15:24:44,333 INFO L140 encePairwiseOnDemand]: 267/273 looper letters, 81 selfloop transitions, 5 changer transitions 0/293 dead transitions. [2024-10-24 15:24:44,333 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 293 transitions, 1012 flow [2024-10-24 15:24:44,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:24:44,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:24:44,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1185 transitions. [2024-10-24 15:24:44,336 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7234432234432234 [2024-10-24 15:24:44,336 INFO L175 Difference]: Start difference. First operand has 330 places, 294 transitions, 842 flow. Second operand 6 states and 1185 transitions. [2024-10-24 15:24:44,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 293 transitions, 1012 flow [2024-10-24 15:24:44,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 293 transitions, 966 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-10-24 15:24:44,343 INFO L231 Difference]: Finished difference. Result has 316 places, 293 transitions, 804 flow [2024-10-24 15:24:44,344 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=794, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=804, PETRI_PLACES=316, PETRI_TRANSITIONS=293} [2024-10-24 15:24:44,344 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 44 predicate places. [2024-10-24 15:24:44,344 INFO L471 AbstractCegarLoop]: Abstraction has has 316 places, 293 transitions, 804 flow [2024-10-24 15:24:44,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 185.83333333333334) internal successors, (1115), 6 states have internal predecessors, (1115), 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) [2024-10-24 15:24:44,345 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:24:44,346 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:24:44,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 15:24:44,346 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-24 15:24:44,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:24:44,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1099792604, now seen corresponding path program 1 times [2024-10-24 15:24:44,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:24:44,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871352624] [2024-10-24 15:24:44,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:24:44,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:24:44,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:24:44,946 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-24 15:24:44,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:24:44,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871352624] [2024-10-24 15:24:44,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871352624] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:24:44,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:24:44,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:24:44,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708549351] [2024-10-24 15:24:44,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:24:44,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:24:44,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:24:44,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:24:44,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:24:45,377 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 273 [2024-10-24 15:24:45,378 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 293 transitions, 804 flow. Second operand has 6 states, 6 states have (on average 208.83333333333334) internal successors, (1253), 6 states have internal predecessors, (1253), 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) [2024-10-24 15:24:45,378 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:24:45,378 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 273 [2024-10-24 15:24:45,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:24:45,927 INFO L124 PetriNetUnfolderBase]: 257/1701 cut-off events. [2024-10-24 15:24:45,927 INFO L125 PetriNetUnfolderBase]: For 126/126 co-relation queries the response was YES. [2024-10-24 15:24:45,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2431 conditions, 1701 events. 257/1701 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 10124 event pairs, 34 based on Foata normal form. 0/1572 useless extension candidates. Maximal degree in co-relation 2241. Up to 436 conditions per place. [2024-10-24 15:24:45,936 INFO L140 encePairwiseOnDemand]: 244/273 looper letters, 68 selfloop transitions, 75 changer transitions 0/370 dead transitions. [2024-10-24 15:24:45,937 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 370 transitions, 1244 flow [2024-10-24 15:24:45,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:24:45,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:24:45,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1369 transitions. [2024-10-24 15:24:45,940 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8357753357753358 [2024-10-24 15:24:45,941 INFO L175 Difference]: Start difference. First operand has 316 places, 293 transitions, 804 flow. Second operand 6 states and 1369 transitions. [2024-10-24 15:24:45,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 370 transitions, 1244 flow [2024-10-24 15:24:45,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 370 transitions, 1234 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 15:24:45,950 INFO L231 Difference]: Finished difference. Result has 320 places, 361 transitions, 1274 flow [2024-10-24 15:24:45,951 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=792, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1274, PETRI_PLACES=320, PETRI_TRANSITIONS=361} [2024-10-24 15:24:45,952 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 48 predicate places. [2024-10-24 15:24:45,952 INFO L471 AbstractCegarLoop]: Abstraction has has 320 places, 361 transitions, 1274 flow [2024-10-24 15:24:45,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 208.83333333333334) internal successors, (1253), 6 states have internal predecessors, (1253), 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) [2024-10-24 15:24:45,953 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:24:45,953 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:24:45,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 15:24:45,954 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-24 15:24:45,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:24:45,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1613199059, now seen corresponding path program 1 times [2024-10-24 15:24:45,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:24:45,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411355034] [2024-10-24 15:24:45,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:24:45,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:24:45,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:24:46,557 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-24 15:24:46,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:24:46,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411355034] [2024-10-24 15:24:46,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411355034] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:24:46,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:24:46,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:24:46,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324936334] [2024-10-24 15:24:46,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:24:46,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:24:46,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:24:46,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:24:46,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:24:47,048 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 273 [2024-10-24 15:24:47,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 361 transitions, 1274 flow. Second operand has 6 states, 6 states have (on average 215.5) internal successors, (1293), 6 states have internal predecessors, (1293), 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) [2024-10-24 15:24:47,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:24:47,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 273 [2024-10-24 15:24:47,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:24:47,303 INFO L124 PetriNetUnfolderBase]: 209/1566 cut-off events. [2024-10-24 15:24:47,303 INFO L125 PetriNetUnfolderBase]: For 477/499 co-relation queries the response was YES. [2024-10-24 15:24:47,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2687 conditions, 1566 events. 209/1566 cut-off events. For 477/499 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 8679 event pairs, 53 based on Foata normal form. 0/1451 useless extension candidates. Maximal degree in co-relation 2495. Up to 336 conditions per place. [2024-10-24 15:24:47,315 INFO L140 encePairwiseOnDemand]: 267/273 looper letters, 117 selfloop transitions, 5 changer transitions 0/360 dead transitions. [2024-10-24 15:24:47,315 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 360 transitions, 1516 flow [2024-10-24 15:24:47,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:24:47,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:24:47,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1325 transitions. [2024-10-24 15:24:47,318 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8089133089133089 [2024-10-24 15:24:47,318 INFO L175 Difference]: Start difference. First operand has 320 places, 361 transitions, 1274 flow. Second operand 6 states and 1325 transitions. [2024-10-24 15:24:47,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 360 transitions, 1516 flow [2024-10-24 15:24:47,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 360 transitions, 1516 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:24:47,328 INFO L231 Difference]: Finished difference. Result has 324 places, 360 transitions, 1282 flow [2024-10-24 15:24:47,329 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=1272, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=360, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1282, PETRI_PLACES=324, PETRI_TRANSITIONS=360} [2024-10-24 15:24:47,330 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 52 predicate places. [2024-10-24 15:24:47,330 INFO L471 AbstractCegarLoop]: Abstraction has has 324 places, 360 transitions, 1282 flow [2024-10-24 15:24:47,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 215.5) internal successors, (1293), 6 states have internal predecessors, (1293), 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) [2024-10-24 15:24:47,331 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:24:47,332 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:24:47,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 15:24:47,332 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-24 15:24:47,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:24:47,332 INFO L85 PathProgramCache]: Analyzing trace with hash 233424060, now seen corresponding path program 1 times [2024-10-24 15:24:47,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:24:47,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733091050] [2024-10-24 15:24:47,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:24:47,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:24:47,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:24:47,866 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-24 15:24:47,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:24:47,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733091050] [2024-10-24 15:24:47,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733091050] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:24:47,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:24:47,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:24:47,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300373820] [2024-10-24 15:24:47,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:24:47,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:24:47,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:24:47,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:24:47,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:24:48,161 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 273 [2024-10-24 15:24:48,162 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 360 transitions, 1282 flow. Second operand has 6 states, 6 states have (on average 191.16666666666666) internal successors, (1147), 6 states have internal predecessors, (1147), 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) [2024-10-24 15:24:48,162 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:24:48,162 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 273 [2024-10-24 15:24:48,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:24:48,845 INFO L124 PetriNetUnfolderBase]: 717/2926 cut-off events. [2024-10-24 15:24:48,845 INFO L125 PetriNetUnfolderBase]: For 950/1011 co-relation queries the response was YES. [2024-10-24 15:24:48,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5698 conditions, 2926 events. 717/2926 cut-off events. For 950/1011 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 20053 event pairs, 399 based on Foata normal form. 0/2705 useless extension candidates. Maximal degree in co-relation 5505. Up to 1485 conditions per place. [2024-10-24 15:24:48,865 INFO L140 encePairwiseOnDemand]: 267/273 looper letters, 146 selfloop transitions, 5 changer transitions 0/359 dead transitions. [2024-10-24 15:24:48,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 359 transitions, 1582 flow [2024-10-24 15:24:48,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:24:48,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:24:48,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1195 transitions. [2024-10-24 15:24:48,868 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7295482295482295 [2024-10-24 15:24:48,869 INFO L175 Difference]: Start difference. First operand has 324 places, 360 transitions, 1282 flow. Second operand 6 states and 1195 transitions. [2024-10-24 15:24:48,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 359 transitions, 1582 flow [2024-10-24 15:24:48,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 359 transitions, 1572 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 15:24:48,883 INFO L231 Difference]: Finished difference. Result has 323 places, 359 transitions, 1280 flow [2024-10-24 15:24:48,887 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=1270, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1280, PETRI_PLACES=323, PETRI_TRANSITIONS=359} [2024-10-24 15:24:48,888 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 51 predicate places. [2024-10-24 15:24:48,890 INFO L471 AbstractCegarLoop]: Abstraction has has 323 places, 359 transitions, 1280 flow [2024-10-24 15:24:48,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 191.16666666666666) internal successors, (1147), 6 states have internal predecessors, (1147), 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) [2024-10-24 15:24:48,891 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:24:48,891 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:24:48,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 15:24:48,892 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-24 15:24:48,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:24:48,895 INFO L85 PathProgramCache]: Analyzing trace with hash -108867941, now seen corresponding path program 1 times [2024-10-24 15:24:48,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:24:48,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141913051] [2024-10-24 15:24:48,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:24:48,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:24:48,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:24:49,694 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-24 15:24:49,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:24:49,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141913051] [2024-10-24 15:24:49,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141913051] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:24:49,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:24:49,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:24:49,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777302] [2024-10-24 15:24:49,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:24:49,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:24:49,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:24:49,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:24:49,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:24:50,238 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 273 [2024-10-24 15:24:50,239 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 359 transitions, 1280 flow. Second operand has 6 states, 6 states have (on average 192.66666666666666) internal successors, (1156), 6 states have internal predecessors, (1156), 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) [2024-10-24 15:24:50,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:24:50,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 273 [2024-10-24 15:24:50,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:24:50,760 INFO L124 PetriNetUnfolderBase]: 717/2925 cut-off events. [2024-10-24 15:24:50,760 INFO L125 PetriNetUnfolderBase]: For 952/1013 co-relation queries the response was YES. [2024-10-24 15:24:50,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5696 conditions, 2925 events. 717/2925 cut-off events. For 952/1013 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 19973 event pairs, 399 based on Foata normal form. 0/2705 useless extension candidates. Maximal degree in co-relation 5503. Up to 1484 conditions per place. [2024-10-24 15:24:50,779 INFO L140 encePairwiseOnDemand]: 267/273 looper letters, 145 selfloop transitions, 5 changer transitions 0/358 dead transitions. [2024-10-24 15:24:50,779 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 358 transitions, 1578 flow [2024-10-24 15:24:50,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:24:50,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:24:50,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1200 transitions. [2024-10-24 15:24:50,784 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7326007326007326 [2024-10-24 15:24:50,784 INFO L175 Difference]: Start difference. First operand has 323 places, 359 transitions, 1280 flow. Second operand 6 states and 1200 transitions. [2024-10-24 15:24:50,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 358 transitions, 1578 flow [2024-10-24 15:24:50,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 358 transitions, 1568 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 15:24:50,797 INFO L231 Difference]: Finished difference. Result has 322 places, 358 transitions, 1278 flow [2024-10-24 15:24:50,798 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=1268, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1278, PETRI_PLACES=322, PETRI_TRANSITIONS=358} [2024-10-24 15:24:50,798 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 50 predicate places. [2024-10-24 15:24:50,799 INFO L471 AbstractCegarLoop]: Abstraction has has 322 places, 358 transitions, 1278 flow [2024-10-24 15:24:50,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.66666666666666) internal successors, (1156), 6 states have internal predecessors, (1156), 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) [2024-10-24 15:24:50,799 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:24:50,799 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:24:50,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 15:24:50,800 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-24 15:24:50,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:24:50,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1812992791, now seen corresponding path program 1 times [2024-10-24 15:24:50,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:24:50,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232123350] [2024-10-24 15:24:50,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:24:50,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:24:50,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:24:51,462 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-24 15:24:51,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:24:51,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232123350] [2024-10-24 15:24:51,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232123350] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:24:51,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:24:51,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:24:51,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051344763] [2024-10-24 15:24:51,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:24:51,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:24:51,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:24:51,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:24:51,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:24:51,906 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 273 [2024-10-24 15:24:51,908 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 358 transitions, 1278 flow. Second operand has 6 states, 6 states have (on average 217.16666666666666) internal successors, (1303), 6 states have internal predecessors, (1303), 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) [2024-10-24 15:24:51,908 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:24:51,908 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 273 [2024-10-24 15:24:51,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:24:52,479 INFO L124 PetriNetUnfolderBase]: 530/2482 cut-off events. [2024-10-24 15:24:52,479 INFO L125 PetriNetUnfolderBase]: For 952/1054 co-relation queries the response was YES. [2024-10-24 15:24:52,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4684 conditions, 2482 events. 530/2482 cut-off events. For 952/1054 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 16120 event pairs, 93 based on Foata normal form. 16/2333 useless extension candidates. Maximal degree in co-relation 4490. Up to 813 conditions per place. [2024-10-24 15:24:52,496 INFO L140 encePairwiseOnDemand]: 250/273 looper letters, 131 selfloop transitions, 130 changer transitions 0/495 dead transitions. [2024-10-24 15:24:52,496 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 495 transitions, 2450 flow [2024-10-24 15:24:52,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:24:52,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:24:52,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1403 transitions. [2024-10-24 15:24:52,500 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8565323565323565 [2024-10-24 15:24:52,500 INFO L175 Difference]: Start difference. First operand has 322 places, 358 transitions, 1278 flow. Second operand 6 states and 1403 transitions. [2024-10-24 15:24:52,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 495 transitions, 2450 flow [2024-10-24 15:24:52,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 495 transitions, 2440 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 15:24:52,513 INFO L231 Difference]: Finished difference. Result has 327 places, 487 transitions, 2496 flow [2024-10-24 15:24:52,513 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=1268, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2496, PETRI_PLACES=327, PETRI_TRANSITIONS=487} [2024-10-24 15:24:52,514 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 55 predicate places. [2024-10-24 15:24:52,514 INFO L471 AbstractCegarLoop]: Abstraction has has 327 places, 487 transitions, 2496 flow [2024-10-24 15:24:52,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 217.16666666666666) internal successors, (1303), 6 states have internal predecessors, (1303), 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) [2024-10-24 15:24:52,515 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:24:52,515 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:24:52,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 15:24:52,515 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-24 15:24:52,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:24:52,515 INFO L85 PathProgramCache]: Analyzing trace with hash -151152579, now seen corresponding path program 1 times [2024-10-24 15:24:52,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:24:52,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710524819] [2024-10-24 15:24:52,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:24:52,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:24:52,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:24:53,063 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-24 15:24:53,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:24:53,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710524819] [2024-10-24 15:24:53,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710524819] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:24:53,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:24:53,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:24:53,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455401474] [2024-10-24 15:24:53,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:24:53,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:24:53,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:24:53,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:24:53,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:24:53,404 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 273 [2024-10-24 15:24:53,405 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 487 transitions, 2496 flow. Second operand has 6 states, 6 states have (on average 217.33333333333334) internal successors, (1304), 6 states have internal predecessors, (1304), 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) [2024-10-24 15:24:53,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:24:53,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 273 [2024-10-24 15:24:53,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:24:54,160 INFO L124 PetriNetUnfolderBase]: 806/3224 cut-off events. [2024-10-24 15:24:54,160 INFO L125 PetriNetUnfolderBase]: For 3385/3601 co-relation queries the response was YES. [2024-10-24 15:24:54,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7519 conditions, 3224 events. 806/3224 cut-off events. For 3385/3601 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 22190 event pairs, 65 based on Foata normal form. 52/3111 useless extension candidates. Maximal degree in co-relation 7321. Up to 1071 conditions per place. [2024-10-24 15:24:54,201 INFO L140 encePairwiseOnDemand]: 250/273 looper letters, 251 selfloop transitions, 131 changer transitions 5/625 dead transitions. [2024-10-24 15:24:54,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 625 transitions, 4170 flow [2024-10-24 15:24:54,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:24:54,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:24:54,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1404 transitions. [2024-10-24 15:24:54,204 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2024-10-24 15:24:54,204 INFO L175 Difference]: Start difference. First operand has 327 places, 487 transitions, 2496 flow. Second operand 6 states and 1404 transitions. [2024-10-24 15:24:54,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 625 transitions, 4170 flow [2024-10-24 15:24:54,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 625 transitions, 4170 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:24:54,226 INFO L231 Difference]: Finished difference. Result has 337 places, 615 transitions, 3976 flow [2024-10-24 15:24:54,227 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=2496, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=487, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=449, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3976, PETRI_PLACES=337, PETRI_TRANSITIONS=615} [2024-10-24 15:24:54,227 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 65 predicate places. [2024-10-24 15:24:54,228 INFO L471 AbstractCegarLoop]: Abstraction has has 337 places, 615 transitions, 3976 flow [2024-10-24 15:24:54,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 217.33333333333334) internal successors, (1304), 6 states have internal predecessors, (1304), 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) [2024-10-24 15:24:54,228 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:24:54,229 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:24:54,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 15:24:54,229 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-24 15:24:54,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:24:54,229 INFO L85 PathProgramCache]: Analyzing trace with hash 976951538, now seen corresponding path program 1 times [2024-10-24 15:24:54,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:24:54,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075269912] [2024-10-24 15:24:54,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:24:54,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:24:54,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:24:54,818 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-24 15:24:54,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:24:54,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075269912] [2024-10-24 15:24:54,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075269912] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:24:54,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:24:54,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:24:54,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278475656] [2024-10-24 15:24:54,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:24:54,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:24:54,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:24:54,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:24:54,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:24:55,191 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 273 [2024-10-24 15:24:55,192 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 615 transitions, 3976 flow. Second operand has 6 states, 6 states have (on average 197.66666666666666) internal successors, (1186), 6 states have internal predecessors, (1186), 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) [2024-10-24 15:24:55,192 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:24:55,192 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 273 [2024-10-24 15:24:55,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:24:56,443 INFO L124 PetriNetUnfolderBase]: 1308/4592 cut-off events. [2024-10-24 15:24:56,443 INFO L125 PetriNetUnfolderBase]: For 4865/4922 co-relation queries the response was YES. [2024-10-24 15:24:56,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12157 conditions, 4592 events. 1308/4592 cut-off events. For 4865/4922 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 33815 event pairs, 369 based on Foata normal form. 11/4358 useless extension candidates. Maximal degree in co-relation 11955. Up to 2225 conditions per place. [2024-10-24 15:24:56,495 INFO L140 encePairwiseOnDemand]: 254/273 looper letters, 316 selfloop transitions, 84 changer transitions 0/694 dead transitions. [2024-10-24 15:24:56,495 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 694 transitions, 5174 flow [2024-10-24 15:24:56,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:24:56,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:24:56,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1282 transitions. [2024-10-24 15:24:56,498 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7826617826617827 [2024-10-24 15:24:56,498 INFO L175 Difference]: Start difference. First operand has 337 places, 615 transitions, 3976 flow. Second operand 6 states and 1282 transitions. [2024-10-24 15:24:56,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 694 transitions, 5174 flow [2024-10-24 15:24:56,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 694 transitions, 4920 flow, removed 127 selfloop flow, removed 0 redundant places. [2024-10-24 15:24:56,536 INFO L231 Difference]: Finished difference. Result has 346 places, 686 transitions, 4512 flow [2024-10-24 15:24:56,538 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=3728, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=615, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=567, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4512, PETRI_PLACES=346, PETRI_TRANSITIONS=686} [2024-10-24 15:24:56,538 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 74 predicate places. [2024-10-24 15:24:56,539 INFO L471 AbstractCegarLoop]: Abstraction has has 346 places, 686 transitions, 4512 flow [2024-10-24 15:24:56,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 197.66666666666666) internal successors, (1186), 6 states have internal predecessors, (1186), 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) [2024-10-24 15:24:56,539 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:24:56,540 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:24:56,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 15:24:56,540 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-24 15:24:56,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:24:56,541 INFO L85 PathProgramCache]: Analyzing trace with hash 691822610, now seen corresponding path program 1 times [2024-10-24 15:24:56,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:24:56,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65468725] [2024-10-24 15:24:56,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:24:56,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:24:56,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:24:57,828 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-24 15:24:57,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:24:57,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65468725] [2024-10-24 15:24:57,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65468725] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:24:57,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:24:57,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 15:24:57,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404700566] [2024-10-24 15:24:57,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:24:57,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 15:24:57,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:24:57,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 15:24:57,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-10-24 15:24:59,315 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 273 [2024-10-24 15:24:59,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 686 transitions, 4512 flow. Second operand has 13 states, 13 states have (on average 194.6153846153846) internal successors, (2530), 13 states have internal predecessors, (2530), 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) [2024-10-24 15:24:59,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:24:59,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 273 [2024-10-24 15:24:59,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:25:00,440 INFO L124 PetriNetUnfolderBase]: 1021/3854 cut-off events. [2024-10-24 15:25:00,441 INFO L125 PetriNetUnfolderBase]: For 6228/6457 co-relation queries the response was YES. [2024-10-24 15:25:00,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11416 conditions, 3854 events. 1021/3854 cut-off events. For 6228/6457 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 27647 event pairs, 69 based on Foata normal form. 32/3739 useless extension candidates. Maximal degree in co-relation 11206. Up to 892 conditions per place. [2024-10-24 15:25:00,476 INFO L140 encePairwiseOnDemand]: 246/273 looper letters, 405 selfloop transitions, 147 changer transitions 1/811 dead transitions. [2024-10-24 15:25:00,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 811 transitions, 6552 flow [2024-10-24 15:25:00,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-24 15:25:00,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-10-24 15:25:00,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3590 transitions. [2024-10-24 15:25:00,482 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7305657305657306 [2024-10-24 15:25:00,482 INFO L175 Difference]: Start difference. First operand has 346 places, 686 transitions, 4512 flow. Second operand 18 states and 3590 transitions. [2024-10-24 15:25:00,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 811 transitions, 6552 flow [2024-10-24 15:25:00,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 811 transitions, 6480 flow, removed 36 selfloop flow, removed 0 redundant places. [2024-10-24 15:25:00,527 INFO L231 Difference]: Finished difference. Result has 374 places, 743 transitions, 5470 flow [2024-10-24 15:25:00,528 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=4458, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=686, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=562, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=5470, PETRI_PLACES=374, PETRI_TRANSITIONS=743} [2024-10-24 15:25:00,528 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 102 predicate places. [2024-10-24 15:25:00,528 INFO L471 AbstractCegarLoop]: Abstraction has has 374 places, 743 transitions, 5470 flow [2024-10-24 15:25:00,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 194.6153846153846) internal successors, (2530), 13 states have internal predecessors, (2530), 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) [2024-10-24 15:25:00,530 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:25:00,530 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:25:00,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 15:25:00,530 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-24 15:25:00,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:25:00,530 INFO L85 PathProgramCache]: Analyzing trace with hash -64026824, now seen corresponding path program 2 times [2024-10-24 15:25:00,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:25:00,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295004400] [2024-10-24 15:25:00,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:25:00,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:25:00,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:25:01,820 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-24 15:25:01,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:25:01,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295004400] [2024-10-24 15:25:01,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295004400] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:25:01,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:25:01,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 15:25:01,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288999818] [2024-10-24 15:25:01,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:25:01,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 15:25:01,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:25:01,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 15:25:01,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-10-24 15:25:03,253 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 273 [2024-10-24 15:25:03,255 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 743 transitions, 5470 flow. Second operand has 13 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 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) [2024-10-24 15:25:03,255 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:25:03,255 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 273 [2024-10-24 15:25:03,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:25:05,185 INFO L124 PetriNetUnfolderBase]: 1465/5597 cut-off events. [2024-10-24 15:25:05,185 INFO L125 PetriNetUnfolderBase]: For 13237/13579 co-relation queries the response was YES. [2024-10-24 15:25:05,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17599 conditions, 5597 events. 1465/5597 cut-off events. For 13237/13579 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 45671 event pairs, 94 based on Foata normal form. 167/5574 useless extension candidates. Maximal degree in co-relation 17375. Up to 1307 conditions per place. [2024-10-24 15:25:05,245 INFO L140 encePairwiseOnDemand]: 235/273 looper letters, 423 selfloop transitions, 265 changer transitions 4/950 dead transitions. [2024-10-24 15:25:05,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 950 transitions, 8682 flow [2024-10-24 15:25:05,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 15:25:05,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-24 15:25:05,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2479 transitions. [2024-10-24 15:25:05,251 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7567155067155067 [2024-10-24 15:25:05,251 INFO L175 Difference]: Start difference. First operand has 374 places, 743 transitions, 5470 flow. Second operand 12 states and 2479 transitions. [2024-10-24 15:25:05,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 950 transitions, 8682 flow [2024-10-24 15:25:05,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 950 transitions, 8632 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-10-24 15:25:05,336 INFO L231 Difference]: Finished difference. Result has 385 places, 844 transitions, 7669 flow [2024-10-24 15:25:05,337 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=5442, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=743, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=164, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=481, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=7669, PETRI_PLACES=385, PETRI_TRANSITIONS=844} [2024-10-24 15:25:05,338 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 113 predicate places. [2024-10-24 15:25:05,339 INFO L471 AbstractCegarLoop]: Abstraction has has 385 places, 844 transitions, 7669 flow [2024-10-24 15:25:05,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 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) [2024-10-24 15:25:05,344 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:25:05,344 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:25:05,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 15:25:05,345 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-24 15:25:05,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:25:05,345 INFO L85 PathProgramCache]: Analyzing trace with hash 720592500, now seen corresponding path program 3 times [2024-10-24 15:25:05,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:25:05,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140520166] [2024-10-24 15:25:05,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:25:05,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:25:05,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:25:06,698 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-24 15:25:06,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:25:06,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140520166] [2024-10-24 15:25:06,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140520166] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:25:06,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:25:06,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 15:25:06,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165584317] [2024-10-24 15:25:06,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:25:06,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 15:25:06,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:25:06,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 15:25:06,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-10-24 15:25:08,268 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 273 [2024-10-24 15:25:08,270 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 844 transitions, 7669 flow. Second operand has 13 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 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) [2024-10-24 15:25:08,270 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:25:08,270 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 273 [2024-10-24 15:25:08,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:25:10,142 INFO L124 PetriNetUnfolderBase]: 2060/7662 cut-off events. [2024-10-24 15:25:10,142 INFO L125 PetriNetUnfolderBase]: For 26239/26769 co-relation queries the response was YES. [2024-10-24 15:25:10,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25759 conditions, 7662 events. 2060/7662 cut-off events. For 26239/26769 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 68177 event pairs, 142 based on Foata normal form. 247/7636 useless extension candidates. Maximal degree in co-relation 25529. Up to 1697 conditions per place. [2024-10-24 15:25:10,198 INFO L140 encePairwiseOnDemand]: 237/273 looper letters, 552 selfloop transitions, 326 changer transitions 2/1138 dead transitions. [2024-10-24 15:25:10,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 1138 transitions, 12647 flow [2024-10-24 15:25:10,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 15:25:10,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-10-24 15:25:10,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3432 transitions. [2024-10-24 15:25:10,204 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7394957983193278 [2024-10-24 15:25:10,204 INFO L175 Difference]: Start difference. First operand has 385 places, 844 transitions, 7669 flow. Second operand 17 states and 3432 transitions. [2024-10-24 15:25:10,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 1138 transitions, 12647 flow [2024-10-24 15:25:10,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 1138 transitions, 12533 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-24 15:25:10,311 INFO L231 Difference]: Finished difference. Result has 407 places, 993 transitions, 10789 flow [2024-10-24 15:25:10,312 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=7581, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=844, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=192, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=545, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=10789, PETRI_PLACES=407, PETRI_TRANSITIONS=993} [2024-10-24 15:25:10,312 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 135 predicate places. [2024-10-24 15:25:10,313 INFO L471 AbstractCegarLoop]: Abstraction has has 407 places, 993 transitions, 10789 flow [2024-10-24 15:25:10,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 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) [2024-10-24 15:25:10,314 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:25:10,314 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:25:10,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 15:25:10,315 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-24 15:25:10,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:25:10,315 INFO L85 PathProgramCache]: Analyzing trace with hash 164644886, now seen corresponding path program 4 times [2024-10-24 15:25:10,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:25:10,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171103085] [2024-10-24 15:25:10,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:25:10,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:25:10,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:25:11,451 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-24 15:25:11,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:25:11,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171103085] [2024-10-24 15:25:11,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171103085] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:25:11,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:25:11,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-24 15:25:11,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080096532] [2024-10-24 15:25:11,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:25:11,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-24 15:25:11,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:25:11,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-24 15:25:11,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-10-24 15:25:12,726 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 273 [2024-10-24 15:25:12,728 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 993 transitions, 10789 flow. Second operand has 15 states, 15 states have (on average 192.13333333333333) internal successors, (2882), 15 states have internal predecessors, (2882), 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) [2024-10-24 15:25:12,728 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:25:12,728 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 273 [2024-10-24 15:25:12,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:25:15,229 INFO L124 PetriNetUnfolderBase]: 3051/11570 cut-off events. [2024-10-24 15:25:15,229 INFO L125 PetriNetUnfolderBase]: For 47845/48511 co-relation queries the response was YES. [2024-10-24 15:25:15,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40082 conditions, 11570 events. 3051/11570 cut-off events. For 47845/48511 co-relation queries the response was YES. Maximal size of possible extension queue 298. Compared 117387 event pairs, 184 based on Foata normal form. 167/11312 useless extension candidates. Maximal degree in co-relation 39839. Up to 2574 conditions per place. [2024-10-24 15:25:15,359 INFO L140 encePairwiseOnDemand]: 238/273 looper letters, 570 selfloop transitions, 420 changer transitions 1/1247 dead transitions. [2024-10-24 15:25:15,359 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 1247 transitions, 16325 flow [2024-10-24 15:25:15,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 15:25:15,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-24 15:25:15,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2587 transitions. [2024-10-24 15:25:15,363 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7289377289377289 [2024-10-24 15:25:15,363 INFO L175 Difference]: Start difference. First operand has 407 places, 993 transitions, 10789 flow. Second operand 13 states and 2587 transitions. [2024-10-24 15:25:15,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 1247 transitions, 16325 flow [2024-10-24 15:25:15,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 1247 transitions, 16154 flow, removed 82 selfloop flow, removed 3 redundant places. [2024-10-24 15:25:15,571 INFO L231 Difference]: Finished difference. Result has 424 places, 1153 transitions, 15301 flow [2024-10-24 15:25:15,572 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=10626, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=993, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=260, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=586, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=15301, PETRI_PLACES=424, PETRI_TRANSITIONS=1153} [2024-10-24 15:25:15,573 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 152 predicate places. [2024-10-24 15:25:15,573 INFO L471 AbstractCegarLoop]: Abstraction has has 424 places, 1153 transitions, 15301 flow [2024-10-24 15:25:15,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 192.13333333333333) internal successors, (2882), 15 states have internal predecessors, (2882), 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) [2024-10-24 15:25:15,574 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:25:15,574 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:25:15,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 15:25:15,574 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-24 15:25:15,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:25:15,575 INFO L85 PathProgramCache]: Analyzing trace with hash 787107828, now seen corresponding path program 5 times [2024-10-24 15:25:15,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:25:15,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097332513] [2024-10-24 15:25:15,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:25:15,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:25:15,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:25:16,839 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-24 15:25:16,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:25:16,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097332513] [2024-10-24 15:25:16,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097332513] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:25:16,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:25:16,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 15:25:16,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070599919] [2024-10-24 15:25:16,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:25:16,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 15:25:16,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:25:16,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 15:25:16,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-10-24 15:25:18,521 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 273 [2024-10-24 15:25:18,523 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 1153 transitions, 15301 flow. Second operand has 13 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 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) [2024-10-24 15:25:18,523 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:25:18,523 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 273 [2024-10-24 15:25:18,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:25:22,406 INFO L124 PetriNetUnfolderBase]: 3907/14562 cut-off events. [2024-10-24 15:25:22,406 INFO L125 PetriNetUnfolderBase]: For 81892/83152 co-relation queries the response was YES. [2024-10-24 15:25:22,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52573 conditions, 14562 events. 3907/14562 cut-off events. For 81892/83152 co-relation queries the response was YES. Maximal size of possible extension queue 390. Compared 155196 event pairs, 247 based on Foata normal form. 804/14827 useless extension candidates. Maximal degree in co-relation 52321. Up to 3188 conditions per place. [2024-10-24 15:25:22,626 INFO L140 encePairwiseOnDemand]: 235/273 looper letters, 615 selfloop transitions, 531 changer transitions 4/1408 dead transitions. [2024-10-24 15:25:22,626 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 1408 transitions, 21287 flow [2024-10-24 15:25:22,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 15:25:22,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-24 15:25:22,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3063 transitions. [2024-10-24 15:25:22,630 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.747985347985348 [2024-10-24 15:25:22,630 INFO L175 Difference]: Start difference. First operand has 424 places, 1153 transitions, 15301 flow. Second operand 15 states and 3063 transitions. [2024-10-24 15:25:22,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 1408 transitions, 21287 flow [2024-10-24 15:25:22,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 1408 transitions, 21226 flow, removed 27 selfloop flow, removed 3 redundant places. [2024-10-24 15:25:22,910 INFO L231 Difference]: Finished difference. Result has 444 places, 1294 transitions, 20298 flow [2024-10-24 15:25:22,912 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=15246, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=393, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=635, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=20298, PETRI_PLACES=444, PETRI_TRANSITIONS=1294} [2024-10-24 15:25:22,912 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 172 predicate places. [2024-10-24 15:25:22,912 INFO L471 AbstractCegarLoop]: Abstraction has has 444 places, 1294 transitions, 20298 flow [2024-10-24 15:25:22,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 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) [2024-10-24 15:25:22,913 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:25:22,914 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:25:22,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 15:25:22,914 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-24 15:25:22,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:25:22,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1626531754, now seen corresponding path program 6 times [2024-10-24 15:25:22,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:25:22,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4058782] [2024-10-24 15:25:22,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:25:22,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:25:22,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:25:23,981 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-24 15:25:23,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:25:23,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4058782] [2024-10-24 15:25:23,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4058782] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:25:23,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:25:23,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 15:25:23,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014396293] [2024-10-24 15:25:23,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:25:23,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 15:25:23,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:25:23,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 15:25:23,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-10-24 15:25:25,477 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 273 [2024-10-24 15:25:25,479 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 1294 transitions, 20298 flow. Second operand has 13 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 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) [2024-10-24 15:25:25,479 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:25:25,479 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 273 [2024-10-24 15:25:25,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:25:29,583 INFO L124 PetriNetUnfolderBase]: 4361/16505 cut-off events. [2024-10-24 15:25:29,583 INFO L125 PetriNetUnfolderBase]: For 119798/120846 co-relation queries the response was YES. [2024-10-24 15:25:29,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62565 conditions, 16505 events. 4361/16505 cut-off events. For 119798/120846 co-relation queries the response was YES. Maximal size of possible extension queue 442. Compared 182193 event pairs, 262 based on Foata normal form. 433/16320 useless extension candidates. Maximal degree in co-relation 62303. Up to 3607 conditions per place. [2024-10-24 15:25:29,940 INFO L140 encePairwiseOnDemand]: 237/273 looper letters, 600 selfloop transitions, 694 changer transitions 2/1554 dead transitions. [2024-10-24 15:25:29,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 459 places, 1554 transitions, 27018 flow [2024-10-24 15:25:29,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 15:25:29,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-10-24 15:25:29,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3235 transitions. [2024-10-24 15:25:29,944 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7406135531135531 [2024-10-24 15:25:29,944 INFO L175 Difference]: Start difference. First operand has 444 places, 1294 transitions, 20298 flow. Second operand 16 states and 3235 transitions. [2024-10-24 15:25:29,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 459 places, 1554 transitions, 27018 flow [2024-10-24 15:25:30,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 1554 transitions, 26877 flow, removed 30 selfloop flow, removed 5 redundant places. [2024-10-24 15:25:30,284 INFO L231 Difference]: Finished difference. Result has 463 places, 1424 transitions, 25355 flow [2024-10-24 15:25:30,285 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=20164, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=570, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=616, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=25355, PETRI_PLACES=463, PETRI_TRANSITIONS=1424} [2024-10-24 15:25:30,285 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 191 predicate places. [2024-10-24 15:25:30,286 INFO L471 AbstractCegarLoop]: Abstraction has has 463 places, 1424 transitions, 25355 flow [2024-10-24 15:25:30,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 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) [2024-10-24 15:25:30,287 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:25:30,287 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:25:30,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 15:25:30,287 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-24 15:25:30,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:25:30,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1419745818, now seen corresponding path program 7 times [2024-10-24 15:25:30,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:25:30,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636953622] [2024-10-24 15:25:30,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:25:30,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:25:30,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:25:31,323 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-24 15:25:31,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:25:31,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636953622] [2024-10-24 15:25:31,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636953622] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:25:31,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:25:31,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 15:25:31,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735284447] [2024-10-24 15:25:31,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:25:31,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 15:25:31,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:25:31,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 15:25:31,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-10-24 15:25:33,225 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 273 [2024-10-24 15:25:33,226 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 1424 transitions, 25355 flow. Second operand has 13 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 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) [2024-10-24 15:25:33,226 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:25:33,226 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 273 [2024-10-24 15:25:33,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:25:39,061 INFO L124 PetriNetUnfolderBase]: 5132/19376 cut-off events. [2024-10-24 15:25:39,061 INFO L125 PetriNetUnfolderBase]: For 165734/167235 co-relation queries the response was YES. [2024-10-24 15:25:39,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76595 conditions, 19376 events. 5132/19376 cut-off events. For 165734/167235 co-relation queries the response was YES. Maximal size of possible extension queue 535. Compared 221090 event pairs, 312 based on Foata normal form. 857/19510 useless extension candidates. Maximal degree in co-relation 76323. Up to 4238 conditions per place. [2024-10-24 15:25:39,328 INFO L140 encePairwiseOnDemand]: 236/273 looper letters, 770 selfloop transitions, 677 changer transitions 3/1708 dead transitions. [2024-10-24 15:25:39,329 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 478 places, 1708 transitions, 33365 flow [2024-10-24 15:25:39,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 15:25:39,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-10-24 15:25:39,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3250 transitions. [2024-10-24 15:25:39,335 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7440476190476191 [2024-10-24 15:25:39,335 INFO L175 Difference]: Start difference. First operand has 463 places, 1424 transitions, 25355 flow. Second operand 16 states and 3250 transitions. [2024-10-24 15:25:39,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 478 places, 1708 transitions, 33365 flow [2024-10-24 15:25:39,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 1708 transitions, 33226 flow, removed 66 selfloop flow, removed 3 redundant places. [2024-10-24 15:25:39,763 INFO L231 Difference]: Finished difference. Result has 485 places, 1577 transitions, 31408 flow [2024-10-24 15:25:39,764 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=25224, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=529, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=761, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=31408, PETRI_PLACES=485, PETRI_TRANSITIONS=1577} [2024-10-24 15:25:39,765 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 213 predicate places. [2024-10-24 15:25:39,765 INFO L471 AbstractCegarLoop]: Abstraction has has 485 places, 1577 transitions, 31408 flow [2024-10-24 15:25:39,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 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) [2024-10-24 15:25:39,766 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:25:39,766 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:25:39,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 15:25:39,767 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-24 15:25:39,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:25:39,767 INFO L85 PathProgramCache]: Analyzing trace with hash 967687616, now seen corresponding path program 8 times [2024-10-24 15:25:39,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:25:39,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339345837] [2024-10-24 15:25:39,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:25:39,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:25:39,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:25:40,698 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-24 15:25:40,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:25:40,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339345837] [2024-10-24 15:25:40,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339345837] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:25:40,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:25:40,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 15:25:40,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947077362] [2024-10-24 15:25:40,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:25:40,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 15:25:40,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:25:40,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 15:25:40,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-10-24 15:25:42,211 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 273 [2024-10-24 15:25:42,213 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 485 places, 1577 transitions, 31408 flow. Second operand has 13 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 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) [2024-10-24 15:25:42,213 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:25:42,213 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 273 [2024-10-24 15:25:42,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand