./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.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 9e83a031749850377e0f1ecd2c361048b8f87f697f146600048034d31c93bd9a --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 06:51:28,615 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:51:28,673 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-09 06:51:28,677 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:51:28,680 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:51:28,702 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:51:28,707 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:51:28,708 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:51:28,708 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:51:28,708 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:51:28,709 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 06:51:28,709 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 06:51:28,709 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 06:51:28,709 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:51:28,710 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:51:28,710 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:51:28,710 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:51:28,710 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:51:28,710 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:51:28,710 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:51:28,711 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:51:28,713 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:51:28,713 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-09 06:51:28,714 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:51:28,714 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:51:28,714 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:51:28,714 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:51:28,714 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:51:28,714 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:51:28,715 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:51:28,715 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:51:28,715 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:51:28,715 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:51:28,715 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:51:28,715 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:51:28,715 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 06:51:28,716 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:51:28,716 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:51:28,716 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 06:51:28,716 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 06:51:28,716 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:51:28,717 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e83a031749850377e0f1ecd2c361048b8f87f697f146600048034d31c93bd9a [2024-11-09 06:51:28,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:51:28,958 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:51:28,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:51:28,962 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:51:28,962 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:51:28,963 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i [2024-11-09 06:51:30,311 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:51:30,543 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:51:30,544 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i [2024-11-09 06:51:30,557 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14baa47a3/09e3847d825649e385b10a8b72b60d43/FLAG3ca740d76 [2024-11-09 06:51:30,571 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14baa47a3/09e3847d825649e385b10a8b72b60d43 [2024-11-09 06:51:30,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:51:30,575 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:51:30,576 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:51:30,576 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:51:30,580 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:51:30,580 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:51:30" (1/1) ... [2024-11-09 06:51:30,581 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d40d154 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:30, skipping insertion in model container [2024-11-09 06:51:30,581 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:51:30" (1/1) ... [2024-11-09 06:51:30,627 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:51:31,005 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:51:31,044 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:51:31,106 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:51:31,157 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:51:31,158 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:31 WrapperNode [2024-11-09 06:51:31,158 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:51:31,159 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:51:31,159 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:51:31,159 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:51:31,165 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:31" (1/1) ... [2024-11-09 06:51:31,181 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:31" (1/1) ... [2024-11-09 06:51:31,217 INFO L138 Inliner]: procedures = 263, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 179 [2024-11-09 06:51:31,218 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:51:31,218 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:51:31,221 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:51:31,221 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:51:31,233 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:31" (1/1) ... [2024-11-09 06:51:31,233 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:31" (1/1) ... [2024-11-09 06:51:31,236 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:31" (1/1) ... [2024-11-09 06:51:31,236 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:31" (1/1) ... [2024-11-09 06:51:31,247 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:31" (1/1) ... [2024-11-09 06:51:31,250 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:31" (1/1) ... [2024-11-09 06:51:31,251 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:31" (1/1) ... [2024-11-09 06:51:31,252 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:31" (1/1) ... [2024-11-09 06:51:31,254 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:51:31,255 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:51:31,255 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:51:31,255 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:51:31,256 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:31" (1/1) ... [2024-11-09 06:51:31,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:51:31,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:51:31,293 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 06:51:31,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 06:51:31,332 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 06:51:31,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 06:51:31,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 06:51:31,333 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 06:51:31,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:51:31,333 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-09 06:51:31,333 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-09 06:51:31,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:51:31,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:51:31,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:51:31,335 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 06:51:31,450 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:51:31,454 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:51:31,754 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 06:51:31,754 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:51:31,794 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:51:31,798 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-09 06:51:31,799 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:51:31 BoogieIcfgContainer [2024-11-09 06:51:31,799 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:51:31,801 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:51:31,802 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:51:31,805 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:51:31,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:51:30" (1/3) ... [2024-11-09 06:51:31,807 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@793fb310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:51:31, skipping insertion in model container [2024-11-09 06:51:31,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:31" (2/3) ... [2024-11-09 06:51:31,808 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@793fb310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:51:31, skipping insertion in model container [2024-11-09 06:51:31,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:51:31" (3/3) ... [2024-11-09 06:51:31,810 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_05-funloop_hard2.i [2024-11-09 06:51:31,828 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:51:31,828 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-09 06:51:31,829 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 06:51:31,907 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 06:51:31,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 183 places, 185 transitions, 374 flow [2024-11-09 06:51:32,028 INFO L124 PetriNetUnfolderBase]: 6/184 cut-off events. [2024-11-09 06:51:32,028 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:51:32,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 184 events. 6/184 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 226 event pairs, 0 based on Foata normal form. 0/172 useless extension candidates. Maximal degree in co-relation 103. Up to 2 conditions per place. [2024-11-09 06:51:32,038 INFO L82 GeneralOperation]: Start removeDead. Operand has 183 places, 185 transitions, 374 flow [2024-11-09 06:51:32,042 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 182 places, 184 transitions, 371 flow [2024-11-09 06:51:32,050 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:51:32,060 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;@4f38c5d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:51:32,060 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-09 06:51:32,089 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 06:51:32,090 INFO L124 PetriNetUnfolderBase]: 4/118 cut-off events. [2024-11-09 06:51:32,090 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:51:32,091 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:32,092 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:32,092 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:51:32,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:32,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1787129944, now seen corresponding path program 1 times [2024-11-09 06:51:32,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:32,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798156807] [2024-11-09 06:51:32,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:32,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:32,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:32,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:32,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:32,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798156807] [2024-11-09 06:51:32,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798156807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:32,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:32,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:51:32,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110331180] [2024-11-09 06:51:32,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:32,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:51:32,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:32,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:51:32,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:51:32,589 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 185 [2024-11-09 06:51:32,593 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 184 transitions, 371 flow. Second operand has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:32,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:32,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 185 [2024-11-09 06:51:32,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:32,699 INFO L124 PetriNetUnfolderBase]: 17/319 cut-off events. [2024-11-09 06:51:32,699 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 06:51:32,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 319 events. 17/319 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 897 event pairs, 10 based on Foata normal form. 12/310 useless extension candidates. Maximal degree in co-relation 266. Up to 38 conditions per place. [2024-11-09 06:51:32,705 INFO L140 encePairwiseOnDemand]: 179/185 looper letters, 12 selfloop transitions, 2 changer transitions 0/182 dead transitions. [2024-11-09 06:51:32,706 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 182 transitions, 395 flow [2024-11-09 06:51:32,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:51:32,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:51:32,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 526 transitions. [2024-11-09 06:51:32,721 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9477477477477477 [2024-11-09 06:51:32,724 INFO L175 Difference]: Start difference. First operand has 182 places, 184 transitions, 371 flow. Second operand 3 states and 526 transitions. [2024-11-09 06:51:32,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 182 transitions, 395 flow [2024-11-09 06:51:32,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 182 transitions, 394 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 06:51:32,732 INFO L231 Difference]: Finished difference. Result has 184 places, 182 transitions, 376 flow [2024-11-09 06:51:32,735 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=376, PETRI_PLACES=184, PETRI_TRANSITIONS=182} [2024-11-09 06:51:32,740 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, 2 predicate places. [2024-11-09 06:51:32,741 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 182 transitions, 376 flow [2024-11-09 06:51:32,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:32,741 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:32,742 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:32,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:51:32,743 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:51:32,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:32,743 INFO L85 PathProgramCache]: Analyzing trace with hash -819207593, now seen corresponding path program 1 times [2024-11-09 06:51:32,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:32,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002637123] [2024-11-09 06:51:32,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:32,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:32,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:32,911 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:32,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:32,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002637123] [2024-11-09 06:51:32,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002637123] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:51:32,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987601211] [2024-11-09 06:51:32,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:32,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:51:32,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:51:32,914 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:51:32,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:51:33,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:33,005 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 06:51:33,010 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:51:33,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:51:33,063 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:51:33,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [987601211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:33,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:51:33,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-09 06:51:33,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364536207] [2024-11-09 06:51:33,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:33,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:51:33,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:33,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:51:33,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:51:33,078 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 185 [2024-11-09 06:51:33,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 182 transitions, 376 flow. Second operand has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:33,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:33,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 185 [2024-11-09 06:51:33,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:33,169 INFO L124 PetriNetUnfolderBase]: 35/478 cut-off events. [2024-11-09 06:51:33,170 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 06:51:33,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 557 conditions, 478 events. 35/478 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1746 event pairs, 10 based on Foata normal form. 3/452 useless extension candidates. Maximal degree in co-relation 478. Up to 51 conditions per place. [2024-11-09 06:51:33,174 INFO L140 encePairwiseOnDemand]: 182/185 looper letters, 16 selfloop transitions, 2 changer transitions 0/187 dead transitions. [2024-11-09 06:51:33,174 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 187 transitions, 422 flow [2024-11-09 06:51:33,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:51:33,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:51:33,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 526 transitions. [2024-11-09 06:51:33,176 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9477477477477477 [2024-11-09 06:51:33,177 INFO L175 Difference]: Start difference. First operand has 184 places, 182 transitions, 376 flow. Second operand 3 states and 526 transitions. [2024-11-09 06:51:33,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 187 transitions, 422 flow [2024-11-09 06:51:33,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 187 transitions, 420 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 06:51:33,181 INFO L231 Difference]: Finished difference. Result has 186 places, 183 transitions, 386 flow [2024-11-09 06:51:33,181 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=386, PETRI_PLACES=186, PETRI_TRANSITIONS=183} [2024-11-09 06:51:33,182 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, 4 predicate places. [2024-11-09 06:51:33,182 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 183 transitions, 386 flow [2024-11-09 06:51:33,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:33,182 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:33,183 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:33,199 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 06:51:33,387 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 [2024-11-09 06:51:33,388 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:51:33,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:33,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1725730826, now seen corresponding path program 1 times [2024-11-09 06:51:33,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:33,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76281883] [2024-11-09 06:51:33,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:33,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:33,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:33,502 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:33,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:33,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76281883] [2024-11-09 06:51:33,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76281883] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:51:33,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031722891] [2024-11-09 06:51:33,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:33,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:51:33,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:51:33,508 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:51:33,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 06:51:33,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:33,595 INFO L255 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:51:33,598 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:51:33,652 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:33,652 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:51:33,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:33,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031722891] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:51:33,690 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:51:33,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-09 06:51:33,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283060913] [2024-11-09 06:51:33,690 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:51:33,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 06:51:33,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:33,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 06:51:33,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 06:51:33,723 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 185 [2024-11-09 06:51:33,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 183 transitions, 386 flow. Second operand has 10 states, 10 states have (on average 168.0) internal successors, (1680), 10 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:33,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:33,725 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 185 [2024-11-09 06:51:33,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:33,870 INFO L124 PetriNetUnfolderBase]: 19/411 cut-off events. [2024-11-09 06:51:33,870 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 06:51:33,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 491 conditions, 411 events. 19/411 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1287 event pairs, 14 based on Foata normal form. 2/391 useless extension candidates. Maximal degree in co-relation 381. Up to 44 conditions per place. [2024-11-09 06:51:33,873 INFO L140 encePairwiseOnDemand]: 179/185 looper letters, 16 selfloop transitions, 9 changer transitions 0/191 dead transitions. [2024-11-09 06:51:33,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 191 transitions, 454 flow [2024-11-09 06:51:33,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:51:33,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:51:33,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1521 transitions. [2024-11-09 06:51:33,878 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9135135135135135 [2024-11-09 06:51:33,878 INFO L175 Difference]: Start difference. First operand has 186 places, 183 transitions, 386 flow. Second operand 9 states and 1521 transitions. [2024-11-09 06:51:33,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 191 transitions, 454 flow [2024-11-09 06:51:33,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 191 transitions, 452 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 06:51:33,883 INFO L231 Difference]: Finished difference. Result has 196 places, 189 transitions, 434 flow [2024-11-09 06:51:33,885 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=434, PETRI_PLACES=196, PETRI_TRANSITIONS=189} [2024-11-09 06:51:33,886 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, 14 predicate places. [2024-11-09 06:51:33,886 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 189 transitions, 434 flow [2024-11-09 06:51:33,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 168.0) internal successors, (1680), 10 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:33,888 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:33,888 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:33,902 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 06:51:34,089 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 [2024-11-09 06:51:34,090 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:51:34,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:34,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1706137450, now seen corresponding path program 2 times [2024-11-09 06:51:34,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:34,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253215024] [2024-11-09 06:51:34,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:34,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:34,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:34,293 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:34,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:34,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253215024] [2024-11-09 06:51:34,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253215024] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:51:34,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [353921912] [2024-11-09 06:51:34,293 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:51:34,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:51:34,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:51:34,297 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:51:34,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 06:51:34,386 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 06:51:34,386 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:51:34,388 INFO L255 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 06:51:34,390 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:51:34,426 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 [2024-11-09 06:51:34,446 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 [2024-11-09 06:51:34,481 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:51:34,481 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 [2024-11-09 06:51:34,519 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:51:34,519 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 [2024-11-09 06:51:34,552 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 06:51:34,552 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:51:34,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [353921912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:34,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:51:34,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-09 06:51:34,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907458335] [2024-11-09 06:51:34,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:34,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:51:34,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:34,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:51:34,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:51:34,748 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-11-09 06:51:34,761 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 189 transitions, 434 flow. Second operand has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:34,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:34,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-11-09 06:51:34,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:35,095 INFO L124 PetriNetUnfolderBase]: 399/1948 cut-off events. [2024-11-09 06:51:35,096 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-09 06:51:35,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2812 conditions, 1948 events. 399/1948 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 13781 event pairs, 194 based on Foata normal form. 0/1811 useless extension candidates. Maximal degree in co-relation 2700. Up to 649 conditions per place. [2024-11-09 06:51:35,109 INFO L140 encePairwiseOnDemand]: 170/185 looper letters, 44 selfloop transitions, 38 changer transitions 0/242 dead transitions. [2024-11-09 06:51:35,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 242 transitions, 704 flow [2024-11-09 06:51:35,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:51:35,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:51:35,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1001 transitions. [2024-11-09 06:51:35,112 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9018018018018018 [2024-11-09 06:51:35,112 INFO L175 Difference]: Start difference. First operand has 196 places, 189 transitions, 434 flow. Second operand 6 states and 1001 transitions. [2024-11-09 06:51:35,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 242 transitions, 704 flow [2024-11-09 06:51:35,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 242 transitions, 698 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-09 06:51:35,117 INFO L231 Difference]: Finished difference. Result has 205 places, 226 transitions, 682 flow [2024-11-09 06:51:35,118 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=682, PETRI_PLACES=205, PETRI_TRANSITIONS=226} [2024-11-09 06:51:35,118 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, 23 predicate places. [2024-11-09 06:51:35,118 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 226 transitions, 682 flow [2024-11-09 06:51:35,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:35,119 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:35,119 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:35,135 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 06:51:35,323 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 [2024-11-09 06:51:35,324 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:51:35,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:35,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1170129186, now seen corresponding path program 1 times [2024-11-09 06:51:35,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:35,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946531797] [2024-11-09 06:51:35,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:35,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:35,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:35,455 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:35,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:35,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946531797] [2024-11-09 06:51:35,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946531797] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:51:35,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003855542] [2024-11-09 06:51:35,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:35,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:51:35,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:51:35,482 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:51:35,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 06:51:35,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:35,565 INFO L255 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 06:51:35,566 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:51:35,609 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:35,612 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:51:35,697 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:35,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2003855542] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:51:35,697 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:51:35,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-09 06:51:35,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225777711] [2024-11-09 06:51:35,698 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:51:35,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 06:51:35,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:35,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 06:51:35,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-09 06:51:35,726 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 185 [2024-11-09 06:51:35,729 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 226 transitions, 682 flow. Second operand has 18 states, 18 states have (on average 168.0) internal successors, (3024), 18 states have internal predecessors, (3024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:35,729 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:35,729 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 185 [2024-11-09 06:51:35,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:35,997 INFO L124 PetriNetUnfolderBase]: 137/1104 cut-off events. [2024-11-09 06:51:35,997 INFO L125 PetriNetUnfolderBase]: For 104/117 co-relation queries the response was YES. [2024-11-09 06:51:35,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1730 conditions, 1104 events. 137/1104 cut-off events. For 104/117 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 6357 event pairs, 32 based on Foata normal form. 4/1052 useless extension candidates. Maximal degree in co-relation 1541. Up to 177 conditions per place. [2024-11-09 06:51:36,002 INFO L140 encePairwiseOnDemand]: 179/185 looper letters, 20 selfloop transitions, 21 changer transitions 0/244 dead transitions. [2024-11-09 06:51:36,002 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 244 transitions, 852 flow [2024-11-09 06:51:36,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-09 06:51:36,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-09 06:51:36,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3531 transitions. [2024-11-09 06:51:36,010 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9088803088803089 [2024-11-09 06:51:36,010 INFO L175 Difference]: Start difference. First operand has 205 places, 226 transitions, 682 flow. Second operand 21 states and 3531 transitions. [2024-11-09 06:51:36,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 244 transitions, 852 flow [2024-11-09 06:51:36,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 244 transitions, 852 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:51:36,016 INFO L231 Difference]: Finished difference. Result has 230 places, 239 transitions, 812 flow [2024-11-09 06:51:36,017 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=812, PETRI_PLACES=230, PETRI_TRANSITIONS=239} [2024-11-09 06:51:36,017 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, 48 predicate places. [2024-11-09 06:51:36,017 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 239 transitions, 812 flow [2024-11-09 06:51:36,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 168.0) internal successors, (3024), 18 states have internal predecessors, (3024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:36,019 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:36,019 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:36,033 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 06:51:36,220 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 [2024-11-09 06:51:36,220 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:51:36,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:36,220 INFO L85 PathProgramCache]: Analyzing trace with hash 870589854, now seen corresponding path program 2 times [2024-11-09 06:51:36,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:36,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459524506] [2024-11-09 06:51:36,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:36,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:36,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:36,478 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:36,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:36,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459524506] [2024-11-09 06:51:36,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459524506] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:51:36,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59011634] [2024-11-09 06:51:36,479 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:51:36,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:51:36,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:51:36,481 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:51:36,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 06:51:36,560 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 06:51:36,560 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:51:36,562 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 06:51:36,565 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:51:36,572 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 [2024-11-09 06:51:36,588 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 [2024-11-09 06:51:36,613 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:51:36,613 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 [2024-11-09 06:51:36,643 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:51:36,643 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 [2024-11-09 06:51:36,682 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-09 06:51:36,683 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:51:36,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59011634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:36,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:51:36,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-09 06:51:36,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791242012] [2024-11-09 06:51:36,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:36,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:51:36,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:36,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:51:36,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-09 06:51:36,869 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-11-09 06:51:36,870 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 239 transitions, 812 flow. Second operand has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:36,870 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:36,870 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-11-09 06:51:36,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:37,193 INFO L124 PetriNetUnfolderBase]: 467/2141 cut-off events. [2024-11-09 06:51:37,193 INFO L125 PetriNetUnfolderBase]: For 490/544 co-relation queries the response was YES. [2024-11-09 06:51:37,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3848 conditions, 2141 events. 467/2141 cut-off events. For 490/544 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 15262 event pairs, 165 based on Foata normal form. 14/2056 useless extension candidates. Maximal degree in co-relation 3652. Up to 752 conditions per place. [2024-11-09 06:51:37,204 INFO L140 encePairwiseOnDemand]: 174/185 looper letters, 69 selfloop transitions, 30 changer transitions 0/276 dead transitions. [2024-11-09 06:51:37,204 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 276 transitions, 1126 flow [2024-11-09 06:51:37,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:51:37,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:51:37,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 977 transitions. [2024-11-09 06:51:37,206 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8801801801801802 [2024-11-09 06:51:37,206 INFO L175 Difference]: Start difference. First operand has 230 places, 239 transitions, 812 flow. Second operand 6 states and 977 transitions. [2024-11-09 06:51:37,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 276 transitions, 1126 flow [2024-11-09 06:51:37,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 276 transitions, 1102 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-09 06:51:37,213 INFO L231 Difference]: Finished difference. Result has 234 places, 268 transitions, 1038 flow [2024-11-09 06:51:37,213 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=788, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1038, PETRI_PLACES=234, PETRI_TRANSITIONS=268} [2024-11-09 06:51:37,215 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, 52 predicate places. [2024-11-09 06:51:37,215 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 268 transitions, 1038 flow [2024-11-09 06:51:37,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:37,216 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:37,216 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:37,233 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 06:51:37,416 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 [2024-11-09 06:51:37,419 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:51:37,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:37,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1948780719, now seen corresponding path program 1 times [2024-11-09 06:51:37,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:37,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365476462] [2024-11-09 06:51:37,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:37,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:37,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:37,743 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:37,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:37,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365476462] [2024-11-09 06:51:37,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365476462] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:51:37,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493352612] [2024-11-09 06:51:37,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:37,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:51:37,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:51:37,746 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:51:37,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 06:51:37,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:37,831 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 06:51:37,833 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:51:37,892 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:37,892 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:51:38,086 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:38,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493352612] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:51:38,087 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:51:38,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-09 06:51:38,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639745453] [2024-11-09 06:51:38,087 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:51:38,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 06:51:38,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:38,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 06:51:38,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-09 06:51:38,117 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 185 [2024-11-09 06:51:38,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 268 transitions, 1038 flow. Second operand has 23 states, 23 states have (on average 168.08695652173913) internal successors, (3866), 23 states have internal predecessors, (3866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:38,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:38,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 185 [2024-11-09 06:51:38,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:38,563 INFO L124 PetriNetUnfolderBase]: 240/1622 cut-off events. [2024-11-09 06:51:38,564 INFO L125 PetriNetUnfolderBase]: For 560/593 co-relation queries the response was YES. [2024-11-09 06:51:38,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2975 conditions, 1622 events. 240/1622 cut-off events. For 560/593 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 10620 event pairs, 39 based on Foata normal form. 13/1568 useless extension candidates. Maximal degree in co-relation 2698. Up to 221 conditions per place. [2024-11-09 06:51:38,572 INFO L140 encePairwiseOnDemand]: 179/185 looper letters, 23 selfloop transitions, 30 changer transitions 0/285 dead transitions. [2024-11-09 06:51:38,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 285 transitions, 1266 flow [2024-11-09 06:51:38,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-09 06:51:38,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-09 06:51:38,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 5036 transitions. [2024-11-09 06:51:38,579 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9073873873873873 [2024-11-09 06:51:38,579 INFO L175 Difference]: Start difference. First operand has 234 places, 268 transitions, 1038 flow. Second operand 30 states and 5036 transitions. [2024-11-09 06:51:38,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 285 transitions, 1266 flow [2024-11-09 06:51:38,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 285 transitions, 1266 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:51:38,587 INFO L231 Difference]: Finished difference. Result has 267 places, 278 transitions, 1190 flow [2024-11-09 06:51:38,588 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=1038, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1190, PETRI_PLACES=267, PETRI_TRANSITIONS=278} [2024-11-09 06:51:38,588 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, 85 predicate places. [2024-11-09 06:51:38,588 INFO L471 AbstractCegarLoop]: Abstraction has has 267 places, 278 transitions, 1190 flow [2024-11-09 06:51:38,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 168.08695652173913) internal successors, (3866), 23 states have internal predecessors, (3866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:38,589 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:38,590 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] [2024-11-09 06:51:38,603 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-09 06:51:38,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:51:38,790 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:51:38,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:38,791 INFO L85 PathProgramCache]: Analyzing trace with hash 326168846, now seen corresponding path program 2 times [2024-11-09 06:51:38,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:38,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100470558] [2024-11-09 06:51:38,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:38,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:38,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:39,230 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:51:39,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:39,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100470558] [2024-11-09 06:51:39,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100470558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:39,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:39,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:51:39,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346795640] [2024-11-09 06:51:39,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:39,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:51:39,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:39,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:51:39,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:51:39,356 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 185 [2024-11-09 06:51:39,357 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 278 transitions, 1190 flow. Second operand has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:39,357 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:39,357 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 185 [2024-11-09 06:51:39,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:40,034 INFO L124 PetriNetUnfolderBase]: 1060/3733 cut-off events. [2024-11-09 06:51:40,034 INFO L125 PetriNetUnfolderBase]: For 1899/1970 co-relation queries the response was YES. [2024-11-09 06:51:40,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8283 conditions, 3733 events. 1060/3733 cut-off events. For 1899/1970 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 28438 event pairs, 332 based on Foata normal form. 18/3543 useless extension candidates. Maximal degree in co-relation 8005. Up to 1828 conditions per place. [2024-11-09 06:51:40,056 INFO L140 encePairwiseOnDemand]: 162/185 looper letters, 106 selfloop transitions, 89 changer transitions 4/373 dead transitions. [2024-11-09 06:51:40,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 373 transitions, 1944 flow [2024-11-09 06:51:40,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:51:40,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:51:40,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 983 transitions. [2024-11-09 06:51:40,059 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8855855855855855 [2024-11-09 06:51:40,059 INFO L175 Difference]: Start difference. First operand has 267 places, 278 transitions, 1190 flow. Second operand 6 states and 983 transitions. [2024-11-09 06:51:40,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 373 transitions, 1944 flow [2024-11-09 06:51:40,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 373 transitions, 1898 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-09 06:51:40,070 INFO L231 Difference]: Finished difference. Result has 259 places, 357 transitions, 1882 flow [2024-11-09 06:51:40,071 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=1144, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1882, PETRI_PLACES=259, PETRI_TRANSITIONS=357} [2024-11-09 06:51:40,071 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, 77 predicate places. [2024-11-09 06:51:40,071 INFO L471 AbstractCegarLoop]: Abstraction has has 259 places, 357 transitions, 1882 flow [2024-11-09 06:51:40,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:40,072 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:40,072 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] [2024-11-09 06:51:40,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 06:51:40,072 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:51:40,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:40,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1992287029, now seen corresponding path program 1 times [2024-11-09 06:51:40,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:40,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609315437] [2024-11-09 06:51:40,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:40,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:40,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:40,463 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:51:40,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:40,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609315437] [2024-11-09 06:51:40,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609315437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:40,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:40,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:51:40,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964323629] [2024-11-09 06:51:40,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:40,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:51:40,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:40,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:51:40,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:51:40,556 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 185 [2024-11-09 06:51:40,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 357 transitions, 1882 flow. Second operand has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:40,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:40,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 185 [2024-11-09 06:51:40,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:41,276 INFO L124 PetriNetUnfolderBase]: 1241/4215 cut-off events. [2024-11-09 06:51:41,277 INFO L125 PetriNetUnfolderBase]: For 4889/5017 co-relation queries the response was YES. [2024-11-09 06:51:41,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11217 conditions, 4215 events. 1241/4215 cut-off events. For 4889/5017 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 32069 event pairs, 297 based on Foata normal form. 22/4088 useless extension candidates. Maximal degree in co-relation 10956. Up to 2056 conditions per place. [2024-11-09 06:51:41,305 INFO L140 encePairwiseOnDemand]: 170/185 looper letters, 171 selfloop transitions, 71 changer transitions 0/418 dead transitions. [2024-11-09 06:51:41,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 418 transitions, 2720 flow [2024-11-09 06:51:41,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:51:41,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:51:41,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 943 transitions. [2024-11-09 06:51:41,307 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8495495495495495 [2024-11-09 06:51:41,307 INFO L175 Difference]: Start difference. First operand has 259 places, 357 transitions, 1882 flow. Second operand 6 states and 943 transitions. [2024-11-09 06:51:41,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 418 transitions, 2720 flow [2024-11-09 06:51:41,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 418 transitions, 2624 flow, removed 48 selfloop flow, removed 0 redundant places. [2024-11-09 06:51:41,327 INFO L231 Difference]: Finished difference. Result has 269 places, 410 transitions, 2462 flow [2024-11-09 06:51:41,328 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=1792, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=313, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2462, PETRI_PLACES=269, PETRI_TRANSITIONS=410} [2024-11-09 06:51:41,329 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, 87 predicate places. [2024-11-09 06:51:41,329 INFO L471 AbstractCegarLoop]: Abstraction has has 269 places, 410 transitions, 2462 flow [2024-11-09 06:51:41,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:41,329 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:41,329 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] [2024-11-09 06:51:41,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 06:51:41,330 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:51:41,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:41,330 INFO L85 PathProgramCache]: Analyzing trace with hash -102312949, now seen corresponding path program 1 times [2024-11-09 06:51:41,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:41,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092762137] [2024-11-09 06:51:41,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:41,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:41,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:41,736 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:51:41,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:41,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092762137] [2024-11-09 06:51:41,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092762137] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:41,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:41,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:51:41,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735612937] [2024-11-09 06:51:41,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:41,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:51:41,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:41,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:51:41,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:51:42,921 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-11-09 06:51:42,922 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 410 transitions, 2462 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:42,923 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:42,923 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-11-09 06:51:42,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:44,466 INFO L124 PetriNetUnfolderBase]: 2197/8404 cut-off events. [2024-11-09 06:51:44,466 INFO L125 PetriNetUnfolderBase]: For 10569/10810 co-relation queries the response was YES. [2024-11-09 06:51:44,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22757 conditions, 8404 events. 2197/8404 cut-off events. For 10569/10810 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 77903 event pairs, 317 based on Foata normal form. 75/8346 useless extension candidates. Maximal degree in co-relation 22479. Up to 1360 conditions per place. [2024-11-09 06:51:44,556 INFO L140 encePairwiseOnDemand]: 171/185 looper letters, 82 selfloop transitions, 15 changer transitions 4/481 dead transitions. [2024-11-09 06:51:44,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 481 transitions, 2838 flow [2024-11-09 06:51:44,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:51:44,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:51:44,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1475 transitions. [2024-11-09 06:51:44,559 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8858858858858859 [2024-11-09 06:51:44,559 INFO L175 Difference]: Start difference. First operand has 269 places, 410 transitions, 2462 flow. Second operand 9 states and 1475 transitions. [2024-11-09 06:51:44,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 481 transitions, 2838 flow [2024-11-09 06:51:44,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 481 transitions, 2756 flow, removed 41 selfloop flow, removed 0 redundant places. [2024-11-09 06:51:44,697 INFO L231 Difference]: Finished difference. Result has 284 places, 425 transitions, 2498 flow [2024-11-09 06:51:44,697 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=2380, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2498, PETRI_PLACES=284, PETRI_TRANSITIONS=425} [2024-11-09 06:51:44,698 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, 102 predicate places. [2024-11-09 06:51:44,698 INFO L471 AbstractCegarLoop]: Abstraction has has 284 places, 425 transitions, 2498 flow [2024-11-09 06:51:44,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:44,699 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:44,699 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] [2024-11-09 06:51:44,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 06:51:44,699 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:51:44,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:44,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1774045505, now seen corresponding path program 2 times [2024-11-09 06:51:44,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:44,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549262924] [2024-11-09 06:51:44,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:44,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:44,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:45,075 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:51:45,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:45,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549262924] [2024-11-09 06:51:45,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549262924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:45,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:45,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:51:45,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448814876] [2024-11-09 06:51:45,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:45,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:51:45,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:45,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:51:45,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:51:46,267 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-11-09 06:51:46,269 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 425 transitions, 2498 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:46,269 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:46,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-11-09 06:51:46,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:47,937 INFO L124 PetriNetUnfolderBase]: 2481/9476 cut-off events. [2024-11-09 06:51:47,938 INFO L125 PetriNetUnfolderBase]: For 12514/12829 co-relation queries the response was YES. [2024-11-09 06:51:47,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26718 conditions, 9476 events. 2481/9476 cut-off events. For 12514/12829 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 90911 event pairs, 342 based on Foata normal form. 80/9395 useless extension candidates. Maximal degree in co-relation 26432. Up to 1705 conditions per place. [2024-11-09 06:51:48,011 INFO L140 encePairwiseOnDemand]: 172/185 looper letters, 115 selfloop transitions, 20 changer transitions 0/515 dead transitions. [2024-11-09 06:51:48,011 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 515 transitions, 3166 flow [2024-11-09 06:51:48,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:51:48,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:51:48,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1466 transitions. [2024-11-09 06:51:48,016 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8804804804804804 [2024-11-09 06:51:48,016 INFO L175 Difference]: Start difference. First operand has 284 places, 425 transitions, 2498 flow. Second operand 9 states and 1466 transitions. [2024-11-09 06:51:48,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 515 transitions, 3166 flow [2024-11-09 06:51:48,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 515 transitions, 3166 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:51:48,081 INFO L231 Difference]: Finished difference. Result has 299 places, 441 transitions, 2672 flow [2024-11-09 06:51:48,081 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=2498, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2672, PETRI_PLACES=299, PETRI_TRANSITIONS=441} [2024-11-09 06:51:48,082 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, 117 predicate places. [2024-11-09 06:51:48,082 INFO L471 AbstractCegarLoop]: Abstraction has has 299 places, 441 transitions, 2672 flow [2024-11-09 06:51:48,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:48,083 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:48,083 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] [2024-11-09 06:51:48,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 06:51:48,083 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:51:48,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:48,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1627386811, now seen corresponding path program 3 times [2024-11-09 06:51:48,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:48,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577010444] [2024-11-09 06:51:48,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:48,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:48,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:48,550 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:51:48,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:48,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577010444] [2024-11-09 06:51:48,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577010444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:48,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:48,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:51:48,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559608070] [2024-11-09 06:51:48,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:48,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:51:48,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:48,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:51:48,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:51:49,696 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-11-09 06:51:49,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 441 transitions, 2672 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:49,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:49,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-11-09 06:51:49,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:51,683 INFO L124 PetriNetUnfolderBase]: 2776/10332 cut-off events. [2024-11-09 06:51:51,683 INFO L125 PetriNetUnfolderBase]: For 16371/16834 co-relation queries the response was YES. [2024-11-09 06:51:51,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30803 conditions, 10332 events. 2776/10332 cut-off events. For 16371/16834 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 99225 event pairs, 335 based on Foata normal form. 104/10283 useless extension candidates. Maximal degree in co-relation 30509. Up to 1748 conditions per place. [2024-11-09 06:51:51,756 INFO L140 encePairwiseOnDemand]: 171/185 looper letters, 125 selfloop transitions, 22 changer transitions 4/531 dead transitions. [2024-11-09 06:51:51,756 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 531 transitions, 3494 flow [2024-11-09 06:51:51,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:51:51,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:51:51,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1478 transitions. [2024-11-09 06:51:51,759 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8876876876876877 [2024-11-09 06:51:51,759 INFO L175 Difference]: Start difference. First operand has 299 places, 441 transitions, 2672 flow. Second operand 9 states and 1478 transitions. [2024-11-09 06:51:51,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 531 transitions, 3494 flow [2024-11-09 06:51:51,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 531 transitions, 3453 flow, removed 15 selfloop flow, removed 1 redundant places. [2024-11-09 06:51:51,831 INFO L231 Difference]: Finished difference. Result has 311 places, 453 transitions, 2843 flow [2024-11-09 06:51:51,831 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=2657, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=441, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2843, PETRI_PLACES=311, PETRI_TRANSITIONS=453} [2024-11-09 06:51:51,832 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, 129 predicate places. [2024-11-09 06:51:51,832 INFO L471 AbstractCegarLoop]: Abstraction has has 311 places, 453 transitions, 2843 flow [2024-11-09 06:51:51,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:51,833 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:51,833 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] [2024-11-09 06:51:51,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 06:51:51,833 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:51:51,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:51,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1143914403, now seen corresponding path program 4 times [2024-11-09 06:51:51,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:51,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116592388] [2024-11-09 06:51:51,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:51,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:51,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:52,231 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:51:52,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:52,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116592388] [2024-11-09 06:51:52,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116592388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:52,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:52,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:51:52,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89358783] [2024-11-09 06:51:52,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:52,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:51:52,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:52,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:51:52,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:51:53,233 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-11-09 06:51:53,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 453 transitions, 2843 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:53,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:53,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-11-09 06:51:53,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:55,565 INFO L124 PetriNetUnfolderBase]: 3075/11552 cut-off events. [2024-11-09 06:51:55,565 INFO L125 PetriNetUnfolderBase]: For 20116/20580 co-relation queries the response was YES. [2024-11-09 06:51:55,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34975 conditions, 11552 events. 3075/11552 cut-off events. For 20116/20580 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 113540 event pairs, 351 based on Foata normal form. 119/11495 useless extension candidates. Maximal degree in co-relation 34675. Up to 2091 conditions per place. [2024-11-09 06:51:55,658 INFO L140 encePairwiseOnDemand]: 171/185 looper letters, 136 selfloop transitions, 27 changer transitions 0/543 dead transitions. [2024-11-09 06:51:55,658 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 543 transitions, 3796 flow [2024-11-09 06:51:55,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:51:55,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:51:55,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1472 transitions. [2024-11-09 06:51:55,660 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8840840840840841 [2024-11-09 06:51:55,661 INFO L175 Difference]: Start difference. First operand has 311 places, 453 transitions, 2843 flow. Second operand 9 states and 1472 transitions. [2024-11-09 06:51:55,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 543 transitions, 3796 flow [2024-11-09 06:51:55,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 543 transitions, 3717 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-11-09 06:51:55,747 INFO L231 Difference]: Finished difference. Result has 321 places, 465 transitions, 3019 flow [2024-11-09 06:51:55,748 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=2817, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3019, PETRI_PLACES=321, PETRI_TRANSITIONS=465} [2024-11-09 06:51:55,749 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, 139 predicate places. [2024-11-09 06:51:55,749 INFO L471 AbstractCegarLoop]: Abstraction has has 321 places, 465 transitions, 3019 flow [2024-11-09 06:51:55,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:55,751 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:55,751 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] [2024-11-09 06:51:55,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 06:51:55,751 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:51:55,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:55,752 INFO L85 PathProgramCache]: Analyzing trace with hash 928763363, now seen corresponding path program 5 times [2024-11-09 06:51:55,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:55,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976678777] [2024-11-09 06:51:55,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:55,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:55,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:56,147 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:51:56,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:56,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976678777] [2024-11-09 06:51:56,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976678777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:56,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:56,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:51:56,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294161043] [2024-11-09 06:51:56,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:56,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:51:56,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:56,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:51:56,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:51:57,151 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-11-09 06:51:57,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 465 transitions, 3019 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:57,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:57,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-11-09 06:51:57,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:59,453 INFO L124 PetriNetUnfolderBase]: 3403/12558 cut-off events. [2024-11-09 06:51:59,453 INFO L125 PetriNetUnfolderBase]: For 25326/25945 co-relation queries the response was YES. [2024-11-09 06:51:59,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39305 conditions, 12558 events. 3403/12558 cut-off events. For 25326/25945 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 124712 event pairs, 365 based on Foata normal form. 113/12497 useless extension candidates. Maximal degree in co-relation 39000. Up to 2142 conditions per place. [2024-11-09 06:51:59,598 INFO L140 encePairwiseOnDemand]: 171/185 looper letters, 139 selfloop transitions, 29 changer transitions 2/550 dead transitions. [2024-11-09 06:51:59,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 550 transitions, 4025 flow [2024-11-09 06:51:59,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:51:59,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:51:59,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1479 transitions. [2024-11-09 06:51:59,601 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8882882882882883 [2024-11-09 06:51:59,601 INFO L175 Difference]: Start difference. First operand has 321 places, 465 transitions, 3019 flow. Second operand 9 states and 1479 transitions. [2024-11-09 06:51:59,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 550 transitions, 4025 flow [2024-11-09 06:51:59,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 550 transitions, 3934 flow, removed 10 selfloop flow, removed 3 redundant places. [2024-11-09 06:51:59,734 INFO L231 Difference]: Finished difference. Result has 332 places, 480 transitions, 3261 flow [2024-11-09 06:51:59,735 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=2978, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=465, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=441, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3261, PETRI_PLACES=332, PETRI_TRANSITIONS=480} [2024-11-09 06:51:59,735 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, 150 predicate places. [2024-11-09 06:51:59,736 INFO L471 AbstractCegarLoop]: Abstraction has has 332 places, 480 transitions, 3261 flow [2024-11-09 06:51:59,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:59,736 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:59,737 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] [2024-11-09 06:51:59,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 06:51:59,737 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:51:59,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:59,737 INFO L85 PathProgramCache]: Analyzing trace with hash 2051926949, now seen corresponding path program 6 times [2024-11-09 06:51:59,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:59,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265048129] [2024-11-09 06:51:59,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:59,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:59,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:00,252 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:52:00,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:52:00,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265048129] [2024-11-09 06:52:00,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265048129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:00,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:00,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:52:00,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397117925] [2024-11-09 06:52:00,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:00,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:52:00,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:52:00,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:52:00,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:52:01,175 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-11-09 06:52:01,176 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 480 transitions, 3261 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:01,176 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:52:01,176 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-11-09 06:52:01,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:52:03,831 INFO L124 PetriNetUnfolderBase]: 3728/13886 cut-off events. [2024-11-09 06:52:03,832 INFO L125 PetriNetUnfolderBase]: For 31453/32080 co-relation queries the response was YES. [2024-11-09 06:52:03,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44121 conditions, 13886 events. 3728/13886 cut-off events. For 31453/32080 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 141177 event pairs, 398 based on Foata normal form. 120/13813 useless extension candidates. Maximal degree in co-relation 43810. Up to 2470 conditions per place. [2024-11-09 06:52:03,982 INFO L140 encePairwiseOnDemand]: 171/185 looper letters, 152 selfloop transitions, 34 changer transitions 0/566 dead transitions. [2024-11-09 06:52:03,983 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 566 transitions, 4389 flow [2024-11-09 06:52:03,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:52:03,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:52:03,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1475 transitions. [2024-11-09 06:52:03,988 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8858858858858859 [2024-11-09 06:52:03,989 INFO L175 Difference]: Start difference. First operand has 332 places, 480 transitions, 3261 flow. Second operand 9 states and 1475 transitions. [2024-11-09 06:52:03,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 566 transitions, 4389 flow [2024-11-09 06:52:04,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 566 transitions, 4293 flow, removed 27 selfloop flow, removed 2 redundant places. [2024-11-09 06:52:04,147 INFO L231 Difference]: Finished difference. Result has 344 places, 495 transitions, 3504 flow [2024-11-09 06:52:04,148 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=3202, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=480, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=451, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3504, PETRI_PLACES=344, PETRI_TRANSITIONS=495} [2024-11-09 06:52:04,148 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, 162 predicate places. [2024-11-09 06:52:04,148 INFO L471 AbstractCegarLoop]: Abstraction has has 344 places, 495 transitions, 3504 flow [2024-11-09 06:52:04,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:04,149 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:52:04,149 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] [2024-11-09 06:52:04,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 06:52:04,149 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:52:04,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:04,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1702036559, now seen corresponding path program 7 times [2024-11-09 06:52:04,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:52:04,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538004266] [2024-11-09 06:52:04,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:04,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:04,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:04,684 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:52:04,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:52:04,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538004266] [2024-11-09 06:52:04,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538004266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:04,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:04,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:52:04,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599363037] [2024-11-09 06:52:04,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:04,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:52:04,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:52:04,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:52:04,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:52:05,719 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-11-09 06:52:05,720 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 495 transitions, 3504 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:05,720 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:52:05,720 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-11-09 06:52:05,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:52:08,456 INFO L124 PetriNetUnfolderBase]: 4076/14946 cut-off events. [2024-11-09 06:52:08,456 INFO L125 PetriNetUnfolderBase]: For 40006/40702 co-relation queries the response was YES. [2024-11-09 06:52:08,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49205 conditions, 14946 events. 4076/14946 cut-off events. For 40006/40702 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 154053 event pairs, 458 based on Foata normal form. 108/14847 useless extension candidates. Maximal degree in co-relation 48888. Up to 2547 conditions per place. [2024-11-09 06:52:08,614 INFO L140 encePairwiseOnDemand]: 171/185 looper letters, 152 selfloop transitions, 36 changer transitions 0/568 dead transitions. [2024-11-09 06:52:08,615 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 568 transitions, 4619 flow [2024-11-09 06:52:08,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:52:08,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:52:08,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1479 transitions. [2024-11-09 06:52:08,617 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8882882882882883 [2024-11-09 06:52:08,617 INFO L175 Difference]: Start difference. First operand has 344 places, 495 transitions, 3504 flow. Second operand 9 states and 1479 transitions. [2024-11-09 06:52:08,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 568 transitions, 4619 flow [2024-11-09 06:52:08,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 568 transitions, 4519 flow, removed 26 selfloop flow, removed 2 redundant places. [2024-11-09 06:52:08,783 INFO L231 Difference]: Finished difference. Result has 357 places, 514 transitions, 3860 flow [2024-11-09 06:52:08,784 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=3426, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=495, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=465, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3860, PETRI_PLACES=357, PETRI_TRANSITIONS=514} [2024-11-09 06:52:08,784 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, 175 predicate places. [2024-11-09 06:52:08,784 INFO L471 AbstractCegarLoop]: Abstraction has has 357 places, 514 transitions, 3860 flow [2024-11-09 06:52:08,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:08,785 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:52:08,785 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] [2024-11-09 06:52:08,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 06:52:08,785 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:52:08,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:08,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1690780371, now seen corresponding path program 8 times [2024-11-09 06:52:08,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:52:08,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720956859] [2024-11-09 06:52:08,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:08,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:08,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:09,162 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:52:09,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:52:09,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720956859] [2024-11-09 06:52:09,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720956859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:09,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:09,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:52:09,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585987264] [2024-11-09 06:52:09,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:09,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:52:09,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:52:09,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:52:09,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:52:09,866 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-11-09 06:52:09,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 514 transitions, 3860 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:09,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:52:09,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-11-09 06:52:09,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:52:13,113 INFO L124 PetriNetUnfolderBase]: 4665/17079 cut-off events. [2024-11-09 06:52:13,114 INFO L125 PetriNetUnfolderBase]: For 51167/52095 co-relation queries the response was YES. [2024-11-09 06:52:13,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57104 conditions, 17079 events. 4665/17079 cut-off events. For 51167/52095 co-relation queries the response was YES. Maximal size of possible extension queue 539. Compared 182025 event pairs, 501 based on Foata normal form. 139/16990 useless extension candidates. Maximal degree in co-relation 56780. Up to 3013 conditions per place. [2024-11-09 06:52:13,338 INFO L140 encePairwiseOnDemand]: 170/185 looper letters, 171 selfloop transitions, 45 changer transitions 0/596 dead transitions. [2024-11-09 06:52:13,338 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 596 transitions, 5168 flow [2024-11-09 06:52:13,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:52:13,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:52:13,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1479 transitions. [2024-11-09 06:52:13,340 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8882882882882883 [2024-11-09 06:52:13,340 INFO L175 Difference]: Start difference. First operand has 357 places, 514 transitions, 3860 flow. Second operand 9 states and 1479 transitions. [2024-11-09 06:52:13,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 596 transitions, 5168 flow [2024-11-09 06:52:13,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 596 transitions, 5064 flow, removed 52 selfloop flow, removed 0 redundant places. [2024-11-09 06:52:13,727 INFO L231 Difference]: Finished difference. Result has 372 places, 532 transitions, 4213 flow [2024-11-09 06:52:13,728 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=3756, PETRI_DIFFERENCE_MINUEND_PLACES=357, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=514, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=474, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4213, PETRI_PLACES=372, PETRI_TRANSITIONS=532} [2024-11-09 06:52:13,728 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, 190 predicate places. [2024-11-09 06:52:13,728 INFO L471 AbstractCegarLoop]: Abstraction has has 372 places, 532 transitions, 4213 flow [2024-11-09 06:52:13,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:13,729 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:52:13,729 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] [2024-11-09 06:52:13,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 06:52:13,729 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:52:13,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:13,729 INFO L85 PathProgramCache]: Analyzing trace with hash -967986399, now seen corresponding path program 9 times [2024-11-09 06:52:13,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:52:13,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746096104] [2024-11-09 06:52:13,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:13,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:13,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:13,986 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:52:13,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:52:13,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746096104] [2024-11-09 06:52:13,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746096104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:13,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:13,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:52:13,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091596407] [2024-11-09 06:52:13,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:13,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:52:13,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:52:13,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:52:13,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:52:14,380 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-11-09 06:52:14,381 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 532 transitions, 4213 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:14,381 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:52:14,381 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-11-09 06:52:14,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:52:18,255 INFO L124 PetriNetUnfolderBase]: 5254/18964 cut-off events. [2024-11-09 06:52:18,255 INFO L125 PetriNetUnfolderBase]: For 63010/64019 co-relation queries the response was YES. [2024-11-09 06:52:18,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65257 conditions, 18964 events. 5254/18964 cut-off events. For 63010/64019 co-relation queries the response was YES. Maximal size of possible extension queue 663. Compared 206915 event pairs, 526 based on Foata normal form. 152/18891 useless extension candidates. Maximal degree in co-relation 64925. Up to 3289 conditions per place. [2024-11-09 06:52:18,468 INFO L140 encePairwiseOnDemand]: 170/185 looper letters, 188 selfloop transitions, 46 changer transitions 0/614 dead transitions. [2024-11-09 06:52:18,468 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 614 transitions, 5483 flow [2024-11-09 06:52:18,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:52:18,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:52:18,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1481 transitions. [2024-11-09 06:52:18,469 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8894894894894895 [2024-11-09 06:52:18,470 INFO L175 Difference]: Start difference. First operand has 372 places, 532 transitions, 4213 flow. Second operand 9 states and 1481 transitions. [2024-11-09 06:52:18,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 380 places, 614 transitions, 5483 flow [2024-11-09 06:52:18,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 614 transitions, 5397 flow, removed 43 selfloop flow, removed 0 redundant places. [2024-11-09 06:52:18,752 INFO L231 Difference]: Finished difference. Result has 386 places, 549 transitions, 4536 flow [2024-11-09 06:52:18,752 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=4127, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=532, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=491, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4536, PETRI_PLACES=386, PETRI_TRANSITIONS=549} [2024-11-09 06:52:18,753 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, 204 predicate places. [2024-11-09 06:52:18,753 INFO L471 AbstractCegarLoop]: Abstraction has has 386 places, 549 transitions, 4536 flow [2024-11-09 06:52:18,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:18,753 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:52:18,753 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] [2024-11-09 06:52:18,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 06:52:18,754 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:52:18,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:18,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1607569127, now seen corresponding path program 10 times [2024-11-09 06:52:18,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:52:18,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157595117] [2024-11-09 06:52:18,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:18,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:18,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:19,199 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:52:19,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:52:19,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157595117] [2024-11-09 06:52:19,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157595117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:19,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:19,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:52:19,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803821154] [2024-11-09 06:52:19,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:19,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:52:19,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:52:19,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:52:19,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:52:20,063 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-11-09 06:52:20,064 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 549 transitions, 4536 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:20,064 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:52:20,064 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-11-09 06:52:20,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:52:24,088 INFO L124 PetriNetUnfolderBase]: 5542/19890 cut-off events. [2024-11-09 06:52:24,089 INFO L125 PetriNetUnfolderBase]: For 71412/72510 co-relation queries the response was YES. [2024-11-09 06:52:24,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69451 conditions, 19890 events. 5542/19890 cut-off events. For 71412/72510 co-relation queries the response was YES. Maximal size of possible extension queue 726. Compared 219530 event pairs, 553 based on Foata normal form. 174/19836 useless extension candidates. Maximal degree in co-relation 69112. Up to 3462 conditions per place. [2024-11-09 06:52:24,299 INFO L140 encePairwiseOnDemand]: 169/185 looper letters, 187 selfloop transitions, 53 changer transitions 0/620 dead transitions. [2024-11-09 06:52:24,299 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 620 transitions, 5850 flow [2024-11-09 06:52:24,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:52:24,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:52:24,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1483 transitions. [2024-11-09 06:52:24,302 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8906906906906907 [2024-11-09 06:52:24,302 INFO L175 Difference]: Start difference. First operand has 386 places, 549 transitions, 4536 flow. Second operand 9 states and 1483 transitions. [2024-11-09 06:52:24,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 620 transitions, 5850 flow [2024-11-09 06:52:24,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 620 transitions, 5697 flow, removed 57 selfloop flow, removed 2 redundant places. [2024-11-09 06:52:24,783 INFO L231 Difference]: Finished difference. Result has 396 places, 563 transitions, 4815 flow [2024-11-09 06:52:24,783 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=4439, PETRI_DIFFERENCE_MINUEND_PLACES=384, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=549, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=500, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4815, PETRI_PLACES=396, PETRI_TRANSITIONS=563} [2024-11-09 06:52:24,784 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, 214 predicate places. [2024-11-09 06:52:24,784 INFO L471 AbstractCegarLoop]: Abstraction has has 396 places, 563 transitions, 4815 flow [2024-11-09 06:52:24,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:24,785 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:52:24,785 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] [2024-11-09 06:52:24,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 06:52:24,785 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:52:24,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:24,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1976763713, now seen corresponding path program 11 times [2024-11-09 06:52:24,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:52:24,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493399784] [2024-11-09 06:52:24,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:24,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:24,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:25,048 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:52:25,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:52:25,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493399784] [2024-11-09 06:52:25,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493399784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:25,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:25,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:52:25,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226921018] [2024-11-09 06:52:25,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:25,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:52:25,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:52:25,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:52:25,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:52:25,593 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-11-09 06:52:25,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 563 transitions, 4815 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:25,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:52:25,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-11-09 06:52:25,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:52:29,609 INFO L124 PetriNetUnfolderBase]: 5554/19916 cut-off events. [2024-11-09 06:52:29,609 INFO L125 PetriNetUnfolderBase]: For 76126/77186 co-relation queries the response was YES. [2024-11-09 06:52:29,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70234 conditions, 19916 events. 5554/19916 cut-off events. For 76126/77186 co-relation queries the response was YES. Maximal size of possible extension queue 726. Compared 219907 event pairs, 558 based on Foata normal form. 177/19854 useless extension candidates. Maximal degree in co-relation 69891. Up to 3480 conditions per place. [2024-11-09 06:52:29,835 INFO L140 encePairwiseOnDemand]: 170/185 looper letters, 190 selfloop transitions, 57 changer transitions 0/627 dead transitions. [2024-11-09 06:52:29,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 627 transitions, 6053 flow [2024-11-09 06:52:29,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:52:29,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:52:29,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1484 transitions. [2024-11-09 06:52:29,836 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8912912912912913 [2024-11-09 06:52:29,836 INFO L175 Difference]: Start difference. First operand has 396 places, 563 transitions, 4815 flow. Second operand 9 states and 1484 transitions. [2024-11-09 06:52:29,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 627 transitions, 6053 flow [2024-11-09 06:52:30,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 627 transitions, 5893 flow, removed 39 selfloop flow, removed 4 redundant places. [2024-11-09 06:52:30,168 INFO L231 Difference]: Finished difference. Result has 405 places, 575 transitions, 5085 flow [2024-11-09 06:52:30,168 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=4679, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=563, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=509, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5085, PETRI_PLACES=405, PETRI_TRANSITIONS=575} [2024-11-09 06:52:30,169 INFO L277 CegarLoopForPetriNet]: 182 programPoint places, 223 predicate places. [2024-11-09 06:52:30,169 INFO L471 AbstractCegarLoop]: Abstraction has has 405 places, 575 transitions, 5085 flow [2024-11-09 06:52:30,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:30,169 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:52:30,169 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] [2024-11-09 06:52:30,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 06:52:30,170 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 06:52:30,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:30,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1319494957, now seen corresponding path program 12 times [2024-11-09 06:52:30,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:52:30,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112149589] [2024-11-09 06:52:30,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:30,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:30,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:30,570 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:52:30,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:52:30,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112149589] [2024-11-09 06:52:30,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112149589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:30,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:30,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:52:30,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265498467] [2024-11-09 06:52:30,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:30,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:52:30,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:52:30,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:52:30,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:52:31,181 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-11-09 06:52:31,182 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 575 transitions, 5085 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:31,182 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:52:31,182 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-11-09 06:52:31,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand