./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_03-funloop_simple.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_03-funloop_simple.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 8259c4061eb15e4ed63bc06f98acbb6dc3f9862bbe262b5cabdd3ad4658d3239 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 17:04:24,778 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 17:04:24,836 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-14 17:04:24,841 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 17:04:24,844 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 17:04:24,869 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 17:04:24,870 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 17:04:24,871 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 17:04:24,871 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 17:04:24,872 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 17:04:24,872 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 17:04:24,873 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 17:04:24,873 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 17:04:24,873 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 17:04:24,874 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 17:04:24,875 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 17:04:24,875 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 17:04:24,875 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 17:04:24,876 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 17:04:24,876 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 17:04:24,876 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 17:04:24,877 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 17:04:24,877 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-14 17:04:24,877 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 17:04:24,878 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 17:04:24,878 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 17:04:24,878 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 17:04:24,878 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 17:04:24,879 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 17:04:24,879 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 17:04:24,879 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 17:04:24,880 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:04:24,880 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 17:04:24,880 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 17:04:24,880 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 17:04:24,880 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 17:04:24,881 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 17:04:24,881 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 17:04:24,881 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 17:04:24,881 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 17:04:24,881 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 17:04:24,883 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8259c4061eb15e4ed63bc06f98acbb6dc3f9862bbe262b5cabdd3ad4658d3239 [2024-10-14 17:04:25,259 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 17:04:25,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 17:04:25,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 17:04:25,305 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 17:04:25,305 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 17:04:25,307 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_03-funloop_simple.i [2024-10-14 17:04:26,785 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 17:04:27,035 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 17:04:27,040 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_03-funloop_simple.i [2024-10-14 17:04:27,054 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d75ae5d62/7c39675288484ce6bbdb42fb1788c458/FLAG0611620fd [2024-10-14 17:04:27,074 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d75ae5d62/7c39675288484ce6bbdb42fb1788c458 [2024-10-14 17:04:27,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 17:04:27,078 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 17:04:27,078 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 17:04:27,079 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 17:04:27,086 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 17:04:27,086 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:04:27" (1/1) ... [2024-10-14 17:04:27,087 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@680da8aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:04:27, skipping insertion in model container [2024-10-14 17:04:27,087 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:04:27" (1/1) ... [2024-10-14 17:04:27,124 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 17:04:27,391 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:04:27,404 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 17:04:27,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:04:27,479 INFO L204 MainTranslator]: Completed translation [2024-10-14 17:04:27,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:04:27 WrapperNode [2024-10-14 17:04:27,480 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 17:04:27,481 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 17:04:27,481 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 17:04:27,481 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 17:04:27,486 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:04:27" (1/1) ... [2024-10-14 17:04:27,502 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:04:27" (1/1) ... [2024-10-14 17:04:27,528 INFO L138 Inliner]: procedures = 262, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 114 [2024-10-14 17:04:27,532 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 17:04:27,533 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 17:04:27,533 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 17:04:27,533 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 17:04:27,542 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:04:27" (1/1) ... [2024-10-14 17:04:27,542 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:04:27" (1/1) ... [2024-10-14 17:04:27,548 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:04:27" (1/1) ... [2024-10-14 17:04:27,548 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:04:27" (1/1) ... [2024-10-14 17:04:27,559 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:04:27" (1/1) ... [2024-10-14 17:04:27,563 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:04:27" (1/1) ... [2024-10-14 17:04:27,570 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:04:27" (1/1) ... [2024-10-14 17:04:27,571 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:04:27" (1/1) ... [2024-10-14 17:04:27,573 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 17:04:27,573 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 17:04:27,577 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 17:04:27,577 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 17:04:27,578 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:04:27" (1/1) ... [2024-10-14 17:04:27,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:04:27,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:04:27,606 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 17:04:27,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 17:04:27,642 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-14 17:04:27,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-14 17:04:27,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-14 17:04:27,642 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-14 17:04:27,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 17:04:27,642 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-14 17:04:27,642 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-14 17:04:27,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 17:04:27,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 17:04:27,644 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 17:04:27,756 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 17:04:27,757 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 17:04:27,903 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 17:04:27,903 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 17:04:27,920 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 17:04:27,921 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-14 17:04:27,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:04:27 BoogieIcfgContainer [2024-10-14 17:04:27,921 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 17:04:27,926 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 17:04:27,927 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 17:04:27,929 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 17:04:27,929 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:04:27" (1/3) ... [2024-10-14 17:04:27,930 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e53bfb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:04:27, skipping insertion in model container [2024-10-14 17:04:27,938 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:04:27" (2/3) ... [2024-10-14 17:04:27,939 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e53bfb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:04:27, skipping insertion in model container [2024-10-14 17:04:27,939 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:04:27" (3/3) ... [2024-10-14 17:04:27,940 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_03-funloop_simple.i [2024-10-14 17:04:27,969 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 17:04:27,969 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-10-14 17:04:27,969 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 17:04:28,090 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-14 17:04:28,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 122 transitions, 248 flow [2024-10-14 17:04:28,253 INFO L124 PetriNetUnfolderBase]: 6/121 cut-off events. [2024-10-14 17:04:28,254 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:04:28,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 121 events. 6/121 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 210 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2024-10-14 17:04:28,263 INFO L82 GeneralOperation]: Start removeDead. Operand has 120 places, 122 transitions, 248 flow [2024-10-14 17:04:28,275 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 121 transitions, 245 flow [2024-10-14 17:04:28,290 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 17:04:28,304 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;@357fff5a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 17:04:28,304 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-10-14 17:04:28,323 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 17:04:28,324 INFO L124 PetriNetUnfolderBase]: 4/53 cut-off events. [2024-10-14 17:04:28,324 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:04:28,324 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:04:28,330 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] [2024-10-14 17:04:28,334 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)] === [2024-10-14 17:04:28,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:04:28,343 INFO L85 PathProgramCache]: Analyzing trace with hash -742639314, now seen corresponding path program 1 times [2024-10-14 17:04:28,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:04:28,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940255063] [2024-10-14 17:04:28,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:28,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:04:28,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:28,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:04:28,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:04:28,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940255063] [2024-10-14 17:04:28,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940255063] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:04:28,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:04:28,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 17:04:28,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530167708] [2024-10-14 17:04:28,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:04:28,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:04:28,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:04:28,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:04:28,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:04:28,719 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 122 [2024-10-14 17:04:28,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 121 transitions, 245 flow. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:04:28,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:04:28,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 122 [2024-10-14 17:04:28,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:04:28,806 INFO L124 PetriNetUnfolderBase]: 14/276 cut-off events. [2024-10-14 17:04:28,809 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 17:04:28,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 276 events. 14/276 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 777 event pairs, 6 based on Foata normal form. 11/264 useless extension candidates. Maximal degree in co-relation 273. Up to 29 conditions per place. [2024-10-14 17:04:28,813 INFO L140 encePairwiseOnDemand]: 116/122 looper letters, 10 selfloop transitions, 2 changer transitions 0/119 dead transitions. [2024-10-14 17:04:28,813 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 119 transitions, 265 flow [2024-10-14 17:04:28,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:04:28,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:04:28,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 341 transitions. [2024-10-14 17:04:28,861 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9316939890710383 [2024-10-14 17:04:28,863 INFO L175 Difference]: Start difference. First operand has 119 places, 121 transitions, 245 flow. Second operand 3 states and 341 transitions. [2024-10-14 17:04:28,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 119 transitions, 265 flow [2024-10-14 17:04:28,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 119 transitions, 264 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:04:28,879 INFO L231 Difference]: Finished difference. Result has 121 places, 119 transitions, 250 flow [2024-10-14 17:04:28,886 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=250, PETRI_PLACES=121, PETRI_TRANSITIONS=119} [2024-10-14 17:04:28,889 INFO L277 CegarLoopForPetriNet]: 119 programPoint places, 2 predicate places. [2024-10-14 17:04:28,889 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 119 transitions, 250 flow [2024-10-14 17:04:28,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:04:28,895 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:04:28,895 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] [2024-10-14 17:04:28,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 17:04:28,895 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)] === [2024-10-14 17:04:28,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:04:28,896 INFO L85 PathProgramCache]: Analyzing trace with hash 239057404, now seen corresponding path program 1 times [2024-10-14 17:04:28,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:04:28,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297936621] [2024-10-14 17:04:28,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:28,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:04:28,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:29,104 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:04:29,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:04:29,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297936621] [2024-10-14 17:04:29,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297936621] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:04:29,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036406424] [2024-10-14 17:04:29,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:29,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:04:29,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:04:29,108 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:04:29,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 17:04:29,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:29,167 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-14 17:04:29,170 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:04:29,189 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 17:04:29,189 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:04:29,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2036406424] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:04:29,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:04:29,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-10-14 17:04:29,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516717403] [2024-10-14 17:04:29,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:04:29,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:04:29,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:04:29,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:04:29,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:04:29,204 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 122 [2024-10-14 17:04:29,205 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 119 transitions, 250 flow. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:04:29,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:04:29,205 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 122 [2024-10-14 17:04:29,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:04:29,288 INFO L124 PetriNetUnfolderBase]: 21/345 cut-off events. [2024-10-14 17:04:29,288 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 17:04:29,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 404 conditions, 345 events. 21/345 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1314 event pairs, 10 based on Foata normal form. 3/326 useless extension candidates. Maximal degree in co-relation 384. Up to 34 conditions per place. [2024-10-14 17:04:29,294 INFO L140 encePairwiseOnDemand]: 119/122 looper letters, 14 selfloop transitions, 2 changer transitions 0/124 dead transitions. [2024-10-14 17:04:29,294 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 124 transitions, 292 flow [2024-10-14 17:04:29,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:04:29,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:04:29,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 341 transitions. [2024-10-14 17:04:29,296 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9316939890710383 [2024-10-14 17:04:29,296 INFO L175 Difference]: Start difference. First operand has 121 places, 119 transitions, 250 flow. Second operand 3 states and 341 transitions. [2024-10-14 17:04:29,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 124 transitions, 292 flow [2024-10-14 17:04:29,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 124 transitions, 290 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:04:29,301 INFO L231 Difference]: Finished difference. Result has 123 places, 120 transitions, 260 flow [2024-10-14 17:04:29,302 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=260, PETRI_PLACES=123, PETRI_TRANSITIONS=120} [2024-10-14 17:04:29,302 INFO L277 CegarLoopForPetriNet]: 119 programPoint places, 4 predicate places. [2024-10-14 17:04:29,303 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 120 transitions, 260 flow [2024-10-14 17:04:29,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:04:29,303 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:04:29,304 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] [2024-10-14 17:04:29,318 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-14 17:04:29,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:04:29,509 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)] === [2024-10-14 17:04:29,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:04:29,510 INFO L85 PathProgramCache]: Analyzing trace with hash 402372275, now seen corresponding path program 1 times [2024-10-14 17:04:29,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:04:29,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308751820] [2024-10-14 17:04:29,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:29,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:04:29,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:29,584 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:04:29,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:04:29,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308751820] [2024-10-14 17:04:29,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308751820] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:04:29,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870689454] [2024-10-14 17:04:29,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:29,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:04:29,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:04:29,587 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:04:29,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 17:04:29,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:29,645 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 17:04:29,646 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:04:29,679 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:04:29,679 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 17:04:29,707 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:04:29,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870689454] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 17:04:29,708 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 17:04:29,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-14 17:04:29,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857863660] [2024-10-14 17:04:29,708 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 17:04:29,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 17:04:29,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:04:29,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 17:04:29,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-14 17:04:29,729 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 122 [2024-10-14 17:04:29,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 120 transitions, 260 flow. Second operand has 10 states, 10 states have (on average 107.0) internal successors, (1070), 10 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:04:29,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:04:29,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 122 [2024-10-14 17:04:29,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:04:29,827 INFO L124 PetriNetUnfolderBase]: 15/336 cut-off events. [2024-10-14 17:04:29,828 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 17:04:29,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 406 conditions, 336 events. 15/336 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1094 event pairs, 10 based on Foata normal form. 2/316 useless extension candidates. Maximal degree in co-relation 355. Up to 34 conditions per place. [2024-10-14 17:04:29,833 INFO L140 encePairwiseOnDemand]: 116/122 looper letters, 14 selfloop transitions, 9 changer transitions 0/128 dead transitions. [2024-10-14 17:04:29,833 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 128 transitions, 324 flow [2024-10-14 17:04:29,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 17:04:29,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-14 17:04:29,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 970 transitions. [2024-10-14 17:04:29,836 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8834244080145719 [2024-10-14 17:04:29,836 INFO L175 Difference]: Start difference. First operand has 123 places, 120 transitions, 260 flow. Second operand 9 states and 970 transitions. [2024-10-14 17:04:29,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 128 transitions, 324 flow [2024-10-14 17:04:29,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 128 transitions, 322 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:04:29,841 INFO L231 Difference]: Finished difference. Result has 133 places, 126 transitions, 308 flow [2024-10-14 17:04:29,841 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=308, PETRI_PLACES=133, PETRI_TRANSITIONS=126} [2024-10-14 17:04:29,843 INFO L277 CegarLoopForPetriNet]: 119 programPoint places, 14 predicate places. [2024-10-14 17:04:29,843 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 126 transitions, 308 flow [2024-10-14 17:04:29,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 107.0) internal successors, (1070), 10 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:04:29,844 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:04:29,844 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] [2024-10-14 17:04:29,861 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 17:04:30,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-10-14 17:04:30,047 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)] === [2024-10-14 17:04:30,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:04:30,047 INFO L85 PathProgramCache]: Analyzing trace with hash -174844045, now seen corresponding path program 2 times [2024-10-14 17:04:30,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:04:30,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844094825] [2024-10-14 17:04:30,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:30,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:04:30,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:30,382 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:04:30,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:04:30,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844094825] [2024-10-14 17:04:30,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844094825] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:04:30,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823516069] [2024-10-14 17:04:30,383 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 17:04:30,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:04:30,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:04:30,385 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:04:30,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 17:04:30,449 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-14 17:04:30,449 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 17:04:30,451 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-14 17:04:30,458 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:04:30,508 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-14 17:04:30,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-10-14 17:04:30,574 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:04:30,575 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-10-14 17:04:30,617 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:04:30,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-10-14 17:04:30,647 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-14 17:04:30,649 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:04:30,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [823516069] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:04:30,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:04:30,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-10-14 17:04:30,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781143312] [2024-10-14 17:04:30,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:04:30,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:04:30,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:04:30,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:04:30,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-10-14 17:04:30,871 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 122 [2024-10-14 17:04:30,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 126 transitions, 308 flow. Second operand has 6 states, 6 states have (on average 93.5) internal successors, (561), 6 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:04:30,872 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:04:30,872 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 122 [2024-10-14 17:04:30,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:04:31,111 INFO L124 PetriNetUnfolderBase]: 355/1753 cut-off events. [2024-10-14 17:04:31,111 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-14 17:04:31,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2529 conditions, 1753 events. 355/1753 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 12612 event pairs, 172 based on Foata normal form. 0/1625 useless extension candidates. Maximal degree in co-relation 2476. Up to 583 conditions per place. [2024-10-14 17:04:31,118 INFO L140 encePairwiseOnDemand]: 107/122 looper letters, 34 selfloop transitions, 38 changer transitions 0/171 dead transitions. [2024-10-14 17:04:31,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 171 transitions, 542 flow [2024-10-14 17:04:31,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:04:31,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:04:31,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 625 transitions. [2024-10-14 17:04:31,121 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8538251366120219 [2024-10-14 17:04:31,121 INFO L175 Difference]: Start difference. First operand has 133 places, 126 transitions, 308 flow. Second operand 6 states and 625 transitions. [2024-10-14 17:04:31,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 171 transitions, 542 flow [2024-10-14 17:04:31,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 171 transitions, 536 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-14 17:04:31,124 INFO L231 Difference]: Finished difference. Result has 142 places, 163 transitions, 556 flow [2024-10-14 17:04:31,124 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=556, PETRI_PLACES=142, PETRI_TRANSITIONS=163} [2024-10-14 17:04:31,125 INFO L277 CegarLoopForPetriNet]: 119 programPoint places, 23 predicate places. [2024-10-14 17:04:31,125 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 163 transitions, 556 flow [2024-10-14 17:04:31,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 93.5) internal successors, (561), 6 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:04:31,126 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:04:31,126 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] [2024-10-14 17:04:31,141 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-14 17:04:31,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:04:31,330 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)] === [2024-10-14 17:04:31,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:04:31,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1147914697, now seen corresponding path program 1 times [2024-10-14 17:04:31,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:04:31,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158632954] [2024-10-14 17:04:31,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:31,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:04:31,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:31,428 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:04:31,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:04:31,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158632954] [2024-10-14 17:04:31,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158632954] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:04:31,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1287952772] [2024-10-14 17:04:31,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:31,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:04:31,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:04:31,431 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:04:31,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 17:04:31,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:31,492 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 17:04:31,493 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:04:31,537 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:04:31,538 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 17:04:31,622 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:04:31,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1287952772] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 17:04:31,623 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 17:04:31,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-14 17:04:31,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470643398] [2024-10-14 17:04:31,623 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 17:04:31,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-14 17:04:31,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:04:31,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-14 17:04:31,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-14 17:04:31,664 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 122 [2024-10-14 17:04:31,666 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 163 transitions, 556 flow. Second operand has 18 states, 18 states have (on average 107.0) internal successors, (1926), 18 states have internal predecessors, (1926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:04:31,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:04:31,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 122 [2024-10-14 17:04:31,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:04:32,109 INFO L124 PetriNetUnfolderBase]: 133/1005 cut-off events. [2024-10-14 17:04:32,113 INFO L125 PetriNetUnfolderBase]: For 104/117 co-relation queries the response was YES. [2024-10-14 17:04:32,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1609 conditions, 1005 events. 133/1005 cut-off events. For 104/117 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 5976 event pairs, 28 based on Foata normal form. 4/953 useless extension candidates. Maximal degree in co-relation 1479. Up to 177 conditions per place. [2024-10-14 17:04:32,123 INFO L140 encePairwiseOnDemand]: 116/122 looper letters, 18 selfloop transitions, 21 changer transitions 0/181 dead transitions. [2024-10-14 17:04:32,127 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 181 transitions, 722 flow [2024-10-14 17:04:32,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-14 17:04:32,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-14 17:04:32,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2248 transitions. [2024-10-14 17:04:32,135 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.87743950039032 [2024-10-14 17:04:32,135 INFO L175 Difference]: Start difference. First operand has 142 places, 163 transitions, 556 flow. Second operand 21 states and 2248 transitions. [2024-10-14 17:04:32,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 181 transitions, 722 flow [2024-10-14 17:04:32,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 181 transitions, 722 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 17:04:32,144 INFO L231 Difference]: Finished difference. Result has 167 places, 176 transitions, 686 flow [2024-10-14 17:04:32,144 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=556, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=686, PETRI_PLACES=167, PETRI_TRANSITIONS=176} [2024-10-14 17:04:32,147 INFO L277 CegarLoopForPetriNet]: 119 programPoint places, 48 predicate places. [2024-10-14 17:04:32,147 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 176 transitions, 686 flow [2024-10-14 17:04:32,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 107.0) internal successors, (1926), 18 states have internal predecessors, (1926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:04:32,150 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:04:32,151 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] [2024-10-14 17:04:32,183 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-14 17:04:32,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:04:32,352 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)] === [2024-10-14 17:04:32,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:04:32,352 INFO L85 PathProgramCache]: Analyzing trace with hash -635754569, now seen corresponding path program 2 times [2024-10-14 17:04:32,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:04:32,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402588602] [2024-10-14 17:04:32,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:32,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:04:32,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:32,620 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:04:32,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:04:32,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402588602] [2024-10-14 17:04:32,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402588602] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:04:32,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966355753] [2024-10-14 17:04:32,621 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 17:04:32,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:04:32,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:04:32,623 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:04:32,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 17:04:32,679 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-14 17:04:32,679 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 17:04:32,680 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-14 17:04:32,682 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:04:32,689 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-14 17:04:32,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-10-14 17:04:32,731 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:04:32,731 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-10-14 17:04:32,761 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:04:32,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-10-14 17:04:32,789 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-14 17:04:32,789 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:04:32,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966355753] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:04:32,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:04:32,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-10-14 17:04:32,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557711596] [2024-10-14 17:04:32,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:04:32,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:04:32,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:04:32,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:04:32,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-14 17:04:32,962 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 122 [2024-10-14 17:04:32,963 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 176 transitions, 686 flow. Second operand has 6 states, 6 states have (on average 93.5) internal successors, (561), 6 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:04:32,963 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:04:32,963 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 122 [2024-10-14 17:04:32,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:04:33,202 INFO L124 PetriNetUnfolderBase]: 451/2018 cut-off events. [2024-10-14 17:04:33,202 INFO L125 PetriNetUnfolderBase]: For 482/534 co-relation queries the response was YES. [2024-10-14 17:04:33,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3679 conditions, 2018 events. 451/2018 cut-off events. For 482/534 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 14613 event pairs, 153 based on Foata normal form. 13/1933 useless extension candidates. Maximal degree in co-relation 3542. Up to 712 conditions per place. [2024-10-14 17:04:33,214 INFO L140 encePairwiseOnDemand]: 111/122 looper letters, 67 selfloop transitions, 30 changer transitions 0/213 dead transitions. [2024-10-14 17:04:33,215 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 213 transitions, 996 flow [2024-10-14 17:04:33,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:04:33,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:04:33,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 609 transitions. [2024-10-14 17:04:33,216 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8319672131147541 [2024-10-14 17:04:33,216 INFO L175 Difference]: Start difference. First operand has 167 places, 176 transitions, 686 flow. Second operand 6 states and 609 transitions. [2024-10-14 17:04:33,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 213 transitions, 996 flow [2024-10-14 17:04:33,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 213 transitions, 972 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-10-14 17:04:33,221 INFO L231 Difference]: Finished difference. Result has 171 places, 205 transitions, 912 flow [2024-10-14 17:04:33,222 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=662, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=912, PETRI_PLACES=171, PETRI_TRANSITIONS=205} [2024-10-14 17:04:33,222 INFO L277 CegarLoopForPetriNet]: 119 programPoint places, 52 predicate places. [2024-10-14 17:04:33,223 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 205 transitions, 912 flow [2024-10-14 17:04:33,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 93.5) internal successors, (561), 6 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:04:33,223 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:04:33,223 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] [2024-10-14 17:04:33,239 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-14 17:04:33,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:04:33,425 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)] === [2024-10-14 17:04:33,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:04:33,425 INFO L85 PathProgramCache]: Analyzing trace with hash -740911240, now seen corresponding path program 1 times [2024-10-14 17:04:33,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:04:33,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537201721] [2024-10-14 17:04:33,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:33,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:04:33,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:33,750 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:04:33,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:04:33,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537201721] [2024-10-14 17:04:33,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537201721] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:04:33,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13426851] [2024-10-14 17:04:33,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:33,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:04:33,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:04:33,757 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:04:33,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 17:04:33,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:33,830 INFO L255 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-14 17:04:33,831 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:04:33,951 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:04:33,952 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 17:04:34,301 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:04:34,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [13426851] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 17:04:34,301 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 17:04:34,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-10-14 17:04:34,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906896598] [2024-10-14 17:04:34,302 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 17:04:34,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-14 17:04:34,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:04:34,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-14 17:04:34,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-10-14 17:04:34,353 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 122 [2024-10-14 17:04:34,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 205 transitions, 912 flow. Second operand has 23 states, 23 states have (on average 107.08695652173913) internal successors, (2463), 23 states have internal predecessors, (2463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:04:34,356 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:04:34,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 122 [2024-10-14 17:04:34,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:04:34,805 INFO L124 PetriNetUnfolderBase]: 236/1523 cut-off events. [2024-10-14 17:04:34,806 INFO L125 PetriNetUnfolderBase]: For 544/577 co-relation queries the response was YES. [2024-10-14 17:04:34,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2854 conditions, 1523 events. 236/1523 cut-off events. For 544/577 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 10162 event pairs, 35 based on Foata normal form. 13/1469 useless extension candidates. Maximal degree in co-relation 2636. Up to 221 conditions per place. [2024-10-14 17:04:34,814 INFO L140 encePairwiseOnDemand]: 116/122 looper letters, 21 selfloop transitions, 30 changer transitions 0/222 dead transitions. [2024-10-14 17:04:34,814 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 222 transitions, 1136 flow [2024-10-14 17:04:34,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-14 17:04:34,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-10-14 17:04:34,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 3204 transitions. [2024-10-14 17:04:34,819 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8754098360655738 [2024-10-14 17:04:34,819 INFO L175 Difference]: Start difference. First operand has 171 places, 205 transitions, 912 flow. Second operand 30 states and 3204 transitions. [2024-10-14 17:04:34,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 222 transitions, 1136 flow [2024-10-14 17:04:34,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 222 transitions, 1136 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 17:04:34,825 INFO L231 Difference]: Finished difference. Result has 204 places, 215 transitions, 1064 flow [2024-10-14 17:04:34,825 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=912, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1064, PETRI_PLACES=204, PETRI_TRANSITIONS=215} [2024-10-14 17:04:34,826 INFO L277 CegarLoopForPetriNet]: 119 programPoint places, 85 predicate places. [2024-10-14 17:04:34,826 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 215 transitions, 1064 flow [2024-10-14 17:04:34,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 107.08695652173913) internal successors, (2463), 23 states have internal predecessors, (2463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:04:34,827 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:04:34,827 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] [2024-10-14 17:04:34,840 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-14 17:04:35,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:04:35,028 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)] === [2024-10-14 17:04:35,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:04:35,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1236358266, now seen corresponding path program 2 times [2024-10-14 17:04:35,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:04:35,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105018405] [2024-10-14 17:04:35,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:35,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:04:35,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:35,339 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-14 17:04:35,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:04:35,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105018405] [2024-10-14 17:04:35,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105018405] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:04:35,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:04:35,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:04:35,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120511097] [2024-10-14 17:04:35,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:04:35,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:04:35,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:04:35,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:04:35,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:04:35,447 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 122 [2024-10-14 17:04:35,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 215 transitions, 1064 flow. Second operand has 6 states, 6 states have (on average 84.5) internal successors, (507), 6 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:04:35,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:04:35,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 122 [2024-10-14 17:04:35,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:04:36,001 INFO L124 PetriNetUnfolderBase]: 1000/3502 cut-off events. [2024-10-14 17:04:36,002 INFO L125 PetriNetUnfolderBase]: For 1854/1923 co-relation queries the response was YES. [2024-10-14 17:04:36,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7882 conditions, 3502 events. 1000/3502 cut-off events. For 1854/1923 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 26714 event pairs, 304 based on Foata normal form. 18/3320 useless extension candidates. Maximal degree in co-relation 7663. Up to 1732 conditions per place. [2024-10-14 17:04:36,022 INFO L140 encePairwiseOnDemand]: 99/122 looper letters, 100 selfloop transitions, 89 changer transitions 0/302 dead transitions. [2024-10-14 17:04:36,023 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 302 transitions, 1782 flow [2024-10-14 17:04:36,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:04:36,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:04:36,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 607 transitions. [2024-10-14 17:04:36,024 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8292349726775956 [2024-10-14 17:04:36,024 INFO L175 Difference]: Start difference. First operand has 204 places, 215 transitions, 1064 flow. Second operand 6 states and 607 transitions. [2024-10-14 17:04:36,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 302 transitions, 1782 flow [2024-10-14 17:04:36,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 302 transitions, 1736 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-10-14 17:04:36,034 INFO L231 Difference]: Finished difference. Result has 196 places, 294 transitions, 1756 flow [2024-10-14 17:04:36,034 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=1018, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1756, PETRI_PLACES=196, PETRI_TRANSITIONS=294} [2024-10-14 17:04:36,035 INFO L277 CegarLoopForPetriNet]: 119 programPoint places, 77 predicate places. [2024-10-14 17:04:36,035 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 294 transitions, 1756 flow [2024-10-14 17:04:36,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 84.5) internal successors, (507), 6 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:04:36,035 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:04:36,036 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] [2024-10-14 17:04:36,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 17:04:36,036 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)] === [2024-10-14 17:04:36,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:04:36,036 INFO L85 PathProgramCache]: Analyzing trace with hash -802719423, now seen corresponding path program 1 times [2024-10-14 17:04:36,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:04:36,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531314352] [2024-10-14 17:04:36,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:36,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:04:36,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:36,560 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-14 17:04:36,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:04:36,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531314352] [2024-10-14 17:04:36,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531314352] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:04:36,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:04:36,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:04:36,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408405308] [2024-10-14 17:04:36,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:04:36,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:04:36,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:04:36,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:04:36,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:04:36,715 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 122 [2024-10-14 17:04:36,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 294 transitions, 1756 flow. Second operand has 6 states, 6 states have (on average 84.5) internal successors, (507), 6 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:04:36,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:04:36,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 122 [2024-10-14 17:04:36,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:04:37,466 INFO L124 PetriNetUnfolderBase]: 1203/4031 cut-off events. [2024-10-14 17:04:37,466 INFO L125 PetriNetUnfolderBase]: For 4587/4711 co-relation queries the response was YES. [2024-10-14 17:04:37,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10873 conditions, 4031 events. 1203/4031 cut-off events. For 4587/4711 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 30815 event pairs, 276 based on Foata normal form. 21/3906 useless extension candidates. Maximal degree in co-relation 10671. Up to 1975 conditions per place. [2024-10-14 17:04:37,494 INFO L140 encePairwiseOnDemand]: 107/122 looper letters, 169 selfloop transitions, 71 changer transitions 0/355 dead transitions. [2024-10-14 17:04:37,494 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 355 transitions, 2590 flow [2024-10-14 17:04:37,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:04:37,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:04:37,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 575 transitions. [2024-10-14 17:04:37,496 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7855191256830601 [2024-10-14 17:04:37,496 INFO L175 Difference]: Start difference. First operand has 196 places, 294 transitions, 1756 flow. Second operand 6 states and 575 transitions. [2024-10-14 17:04:37,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 355 transitions, 2590 flow [2024-10-14 17:04:37,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 355 transitions, 2494 flow, removed 48 selfloop flow, removed 0 redundant places. [2024-10-14 17:04:37,521 INFO L231 Difference]: Finished difference. Result has 206 places, 347 transitions, 2336 flow [2024-10-14 17:04:37,522 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=1666, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2336, PETRI_PLACES=206, PETRI_TRANSITIONS=347} [2024-10-14 17:04:37,523 INFO L277 CegarLoopForPetriNet]: 119 programPoint places, 87 predicate places. [2024-10-14 17:04:37,523 INFO L471 AbstractCegarLoop]: Abstraction has has 206 places, 347 transitions, 2336 flow [2024-10-14 17:04:37,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 84.5) internal successors, (507), 6 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:04:37,523 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:04:37,523 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] [2024-10-14 17:04:37,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 17:04:37,524 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)] === [2024-10-14 17:04:37,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:04:37,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1337125367, now seen corresponding path program 1 times [2024-10-14 17:04:37,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:04:37,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140604529] [2024-10-14 17:04:37,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:37,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:04:37,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:38,297 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-10-14 17:04:38,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:04:38,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140604529] [2024-10-14 17:04:38,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140604529] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:04:38,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [116850321] [2024-10-14 17:04:38,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:38,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:04:38,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:04:38,300 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:04:38,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-14 17:04:38,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:38,386 INFO L255 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-10-14 17:04:38,388 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:04:38,561 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-10-14 17:04:38,661 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-14 17:04:38,661 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:04:38,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [116850321] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:04:38,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:04:38,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2024-10-14 17:04:38,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995235620] [2024-10-14 17:04:38,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:04:38,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 17:04:38,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:04:38,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 17:04:38,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-10-14 17:04:39,139 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 122 [2024-10-14 17:04:39,140 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 347 transitions, 2336 flow. Second operand has 10 states, 10 states have (on average 93.6) internal successors, (936), 10 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:04:39,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:04:39,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 122 [2024-10-14 17:04:39,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:04:40,489 INFO L124 PetriNetUnfolderBase]: 2157/8071 cut-off events. [2024-10-14 17:04:40,489 INFO L125 PetriNetUnfolderBase]: For 10264/10496 co-relation queries the response was YES. [2024-10-14 17:04:40,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22156 conditions, 8071 events. 2157/8071 cut-off events. For 10264/10496 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 74256 event pairs, 297 based on Foata normal form. 73/8015 useless extension candidates. Maximal degree in co-relation 21937. Up to 1356 conditions per place. [2024-10-14 17:04:40,543 INFO L140 encePairwiseOnDemand]: 107/122 looper letters, 73 selfloop transitions, 16 changer transitions 2/410 dead transitions. [2024-10-14 17:04:40,544 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 410 transitions, 2676 flow [2024-10-14 17:04:40,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 17:04:40,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-14 17:04:40,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1008 transitions. [2024-10-14 17:04:40,546 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8262295081967214 [2024-10-14 17:04:40,546 INFO L175 Difference]: Start difference. First operand has 206 places, 347 transitions, 2336 flow. Second operand 10 states and 1008 transitions. [2024-10-14 17:04:40,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 410 transitions, 2676 flow [2024-10-14 17:04:40,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 410 transitions, 2594 flow, removed 41 selfloop flow, removed 0 redundant places. [2024-10-14 17:04:40,591 INFO L231 Difference]: Finished difference. Result has 222 places, 362 transitions, 2374 flow [2024-10-14 17:04:40,591 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=2254, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=334, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2374, PETRI_PLACES=222, PETRI_TRANSITIONS=362} [2024-10-14 17:04:40,592 INFO L277 CegarLoopForPetriNet]: 119 programPoint places, 103 predicate places. [2024-10-14 17:04:40,592 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 362 transitions, 2374 flow [2024-10-14 17:04:40,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 93.6) internal successors, (936), 10 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:04:40,593 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:04:40,593 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] [2024-10-14 17:04:40,607 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-14 17:04:40,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:04:40,796 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)] === [2024-10-14 17:04:40,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:04:40,797 INFO L85 PathProgramCache]: Analyzing trace with hash -462932803, now seen corresponding path program 2 times [2024-10-14 17:04:40,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:04:40,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351637638] [2024-10-14 17:04:40,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:40,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:04:40,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:41,453 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-10-14 17:04:41,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:04:41,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351637638] [2024-10-14 17:04:41,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351637638] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:04:41,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688274051] [2024-10-14 17:04:41,454 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 17:04:41,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:04:41,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:04:41,457 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:04:41,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-14 17:04:41,584 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-14 17:04:41,585 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 17:04:41,586 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-14 17:04:41,588 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:04:41,730 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-10-14 17:04:41,814 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-14 17:04:41,814 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:04:41,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688274051] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:04:41,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:04:41,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2024-10-14 17:04:41,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411377308] [2024-10-14 17:04:41,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:04:41,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 17:04:41,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:04:41,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 17:04:41,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-10-14 17:04:42,312 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 122 [2024-10-14 17:04:42,314 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 362 transitions, 2374 flow. Second operand has 10 states, 10 states have (on average 93.6) internal successors, (936), 10 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:04:42,318 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:04:42,318 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 122 [2024-10-14 17:04:42,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:04:43,780 INFO L124 PetriNetUnfolderBase]: 2461/8964 cut-off events. [2024-10-14 17:04:43,780 INFO L125 PetriNetUnfolderBase]: For 12155/12453 co-relation queries the response was YES. [2024-10-14 17:04:43,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25938 conditions, 8964 events. 2461/8964 cut-off events. For 12155/12453 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 84729 event pairs, 306 based on Foata normal form. 80/8887 useless extension candidates. Maximal degree in co-relation 25710. Up to 1600 conditions per place. [2024-10-14 17:04:43,840 INFO L140 encePairwiseOnDemand]: 108/122 looper letters, 112 selfloop transitions, 21 changer transitions 0/452 dead transitions. [2024-10-14 17:04:43,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 452 transitions, 3038 flow [2024-10-14 17:04:43,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 17:04:43,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-14 17:04:43,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1007 transitions. [2024-10-14 17:04:43,846 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8254098360655737 [2024-10-14 17:04:43,846 INFO L175 Difference]: Start difference. First operand has 222 places, 362 transitions, 2374 flow. Second operand 10 states and 1007 transitions. [2024-10-14 17:04:43,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 452 transitions, 3038 flow [2024-10-14 17:04:43,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 452 transitions, 3037 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:04:43,897 INFO L231 Difference]: Finished difference. Result has 237 places, 378 transitions, 2549 flow [2024-10-14 17:04:43,898 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=2373, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2549, PETRI_PLACES=237, PETRI_TRANSITIONS=378} [2024-10-14 17:04:43,898 INFO L277 CegarLoopForPetriNet]: 119 programPoint places, 118 predicate places. [2024-10-14 17:04:43,898 INFO L471 AbstractCegarLoop]: Abstraction has has 237 places, 378 transitions, 2549 flow [2024-10-14 17:04:43,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 93.6) internal successors, (936), 10 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:04:43,899 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:04:43,899 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] [2024-10-14 17:04:43,912 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-14 17:04:44,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-14 17:04:44,101 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)] === [2024-10-14 17:04:44,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:04:44,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1663547399, now seen corresponding path program 3 times [2024-10-14 17:04:44,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:04:44,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325895611] [2024-10-14 17:04:44,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:44,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:04:44,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:45,352 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-10-14 17:04:45,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:04:45,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325895611] [2024-10-14 17:04:45,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325895611] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:04:45,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911082264] [2024-10-14 17:04:45,352 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-14 17:04:45,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:04:45,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:04:45,355 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:04:45,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-14 17:04:45,440 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-10-14 17:04:45,440 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 17:04:45,441 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-10-14 17:04:45,443 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:04:45,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-10-14 17:04:45,817 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-14 17:04:45,818 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:04:45,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911082264] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:04:45,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:04:45,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2024-10-14 17:04:45,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091485617] [2024-10-14 17:04:45,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:04:45,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 17:04:45,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:04:45,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 17:04:45,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2024-10-14 17:04:46,389 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 122 [2024-10-14 17:04:46,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 378 transitions, 2549 flow. Second operand has 10 states, 10 states have (on average 93.6) internal successors, (936), 10 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:04:46,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:04:46,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 122 [2024-10-14 17:04:46,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:04:48,059 INFO L124 PetriNetUnfolderBase]: 2736/10034 cut-off events. [2024-10-14 17:04:48,059 INFO L125 PetriNetUnfolderBase]: For 15975/16379 co-relation queries the response was YES. [2024-10-14 17:04:48,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30246 conditions, 10034 events. 2736/10034 cut-off events. For 15975/16379 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 96031 event pairs, 315 based on Foata normal form. 104/9991 useless extension candidates. Maximal degree in co-relation 30010. Up to 1746 conditions per place. [2024-10-14 17:04:48,144 INFO L140 encePairwiseOnDemand]: 107/122 looper letters, 118 selfloop transitions, 23 changer transitions 2/462 dead transitions. [2024-10-14 17:04:48,145 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 462 transitions, 3343 flow [2024-10-14 17:04:48,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 17:04:48,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-14 17:04:48,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1013 transitions. [2024-10-14 17:04:48,147 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.830327868852459 [2024-10-14 17:04:48,147 INFO L175 Difference]: Start difference. First operand has 237 places, 378 transitions, 2549 flow. Second operand 10 states and 1013 transitions. [2024-10-14 17:04:48,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 462 transitions, 3343 flow [2024-10-14 17:04:48,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 462 transitions, 3301 flow, removed 15 selfloop flow, removed 2 redundant places. [2024-10-14 17:04:48,215 INFO L231 Difference]: Finished difference. Result has 249 places, 390 transitions, 2721 flow [2024-10-14 17:04:48,216 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=2533, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=378, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2721, PETRI_PLACES=249, PETRI_TRANSITIONS=390} [2024-10-14 17:04:48,218 INFO L277 CegarLoopForPetriNet]: 119 programPoint places, 130 predicate places. [2024-10-14 17:04:48,218 INFO L471 AbstractCegarLoop]: Abstraction has has 249 places, 390 transitions, 2721 flow [2024-10-14 17:04:48,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 93.6) internal successors, (936), 10 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:04:48,218 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:04:48,218 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] [2024-10-14 17:04:48,236 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-14 17:04:48,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:04:48,419 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)] === [2024-10-14 17:04:48,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:04:48,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1620089965, now seen corresponding path program 4 times [2024-10-14 17:04:48,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:04:48,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088710718] [2024-10-14 17:04:48,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:48,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:04:48,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:49,479 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-10-14 17:04:49,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:04:49,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088710718] [2024-10-14 17:04:49,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088710718] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:04:49,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1302220486] [2024-10-14 17:04:49,480 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-14 17:04:49,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:04:49,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:04:49,482 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:04:49,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-14 17:04:49,596 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-14 17:04:49,596 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 17:04:49,599 INFO L255 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-14 17:04:49,601 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:04:49,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-14 17:04:49,792 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-14 17:04:49,793 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:04:49,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1302220486] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:04:49,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:04:49,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2024-10-14 17:04:49,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663807301] [2024-10-14 17:04:49,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:04:49,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 17:04:49,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:04:49,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 17:04:49,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2024-10-14 17:04:50,243 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 122 [2024-10-14 17:04:50,244 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 390 transitions, 2721 flow. Second operand has 10 states, 10 states have (on average 93.6) internal successors, (936), 10 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:04:50,245 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:04:50,245 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 122 [2024-10-14 17:04:50,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:04:52,233 INFO L124 PetriNetUnfolderBase]: 3055/11012 cut-off events. [2024-10-14 17:04:52,233 INFO L125 PetriNetUnfolderBase]: For 19622/20124 co-relation queries the response was YES. [2024-10-14 17:04:52,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34075 conditions, 11012 events. 3055/11012 cut-off events. For 19622/20124 co-relation queries the response was YES. Maximal size of possible extension queue 293. Compared 106709 event pairs, 320 based on Foata normal form. 119/10957 useless extension candidates. Maximal degree in co-relation 33833. Up to 1976 conditions per place. [2024-10-14 17:04:52,333 INFO L140 encePairwiseOnDemand]: 107/122 looper letters, 133 selfloop transitions, 28 changer transitions 0/480 dead transitions. [2024-10-14 17:04:52,334 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 480 transitions, 3670 flow [2024-10-14 17:04:52,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 17:04:52,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-14 17:04:52,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1013 transitions. [2024-10-14 17:04:52,336 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.830327868852459 [2024-10-14 17:04:52,336 INFO L175 Difference]: Start difference. First operand has 249 places, 390 transitions, 2721 flow. Second operand 10 states and 1013 transitions. [2024-10-14 17:04:52,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 480 transitions, 3670 flow [2024-10-14 17:04:52,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 480 transitions, 3589 flow, removed 7 selfloop flow, removed 4 redundant places. [2024-10-14 17:04:52,588 INFO L231 Difference]: Finished difference. Result has 259 places, 402 transitions, 2897 flow [2024-10-14 17:04:52,589 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=2693, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=390, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2897, PETRI_PLACES=259, PETRI_TRANSITIONS=402} [2024-10-14 17:04:52,590 INFO L277 CegarLoopForPetriNet]: 119 programPoint places, 140 predicate places. [2024-10-14 17:04:52,591 INFO L471 AbstractCegarLoop]: Abstraction has has 259 places, 402 transitions, 2897 flow [2024-10-14 17:04:52,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 93.6) internal successors, (936), 10 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:04:52,591 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:04:52,591 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] [2024-10-14 17:04:52,604 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-14 17:04:52,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-14 17:04:52,796 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)] === [2024-10-14 17:04:52,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:04:52,797 INFO L85 PathProgramCache]: Analyzing trace with hash -456466567, now seen corresponding path program 5 times [2024-10-14 17:04:52,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:04:52,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573503889] [2024-10-14 17:04:52,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:52,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:04:52,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:53,219 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-10-14 17:04:53,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:04:53,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573503889] [2024-10-14 17:04:53,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573503889] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:04:53,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288963176] [2024-10-14 17:04:53,220 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-14 17:04:53,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:04:53,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:04:53,222 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:04:53,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-14 17:04:53,335 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-10-14 17:04:53,335 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 17:04:53,336 INFO L255 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-10-14 17:04:53,338 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:04:53,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-10-14 17:04:53,629 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-14 17:04:53,629 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:04:53,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288963176] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:04:53,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:04:53,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2024-10-14 17:04:53,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150886847] [2024-10-14 17:04:53,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:04:53,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 17:04:53,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:04:53,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 17:04:53,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-10-14 17:04:54,066 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 122 [2024-10-14 17:04:54,068 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 402 transitions, 2897 flow. Second operand has 10 states, 10 states have (on average 93.6) internal successors, (936), 10 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:04:54,068 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:04:54,068 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 122 [2024-10-14 17:04:54,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:04:56,341 INFO L124 PetriNetUnfolderBase]: 3363/12225 cut-off events. [2024-10-14 17:04:56,342 INFO L125 PetriNetUnfolderBase]: For 24701/25244 co-relation queries the response was YES. [2024-10-14 17:04:56,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38625 conditions, 12225 events. 3363/12225 cut-off events. For 24701/25244 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 120938 event pairs, 345 based on Foata normal form. 113/12168 useless extension candidates. Maximal degree in co-relation 38378. Up to 2138 conditions per place. [2024-10-14 17:04:56,433 INFO L140 encePairwiseOnDemand]: 107/122 looper letters, 133 selfloop transitions, 30 changer transitions 1/483 dead transitions. [2024-10-14 17:04:56,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 483 transitions, 3883 flow [2024-10-14 17:04:56,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 17:04:56,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-14 17:04:56,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1016 transitions. [2024-10-14 17:04:56,434 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8327868852459016 [2024-10-14 17:04:56,435 INFO L175 Difference]: Start difference. First operand has 259 places, 402 transitions, 2897 flow. Second operand 10 states and 1016 transitions. [2024-10-14 17:04:56,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 483 transitions, 3883 flow [2024-10-14 17:04:56,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 483 transitions, 3790 flow, removed 10 selfloop flow, removed 4 redundant places. [2024-10-14 17:04:56,520 INFO L231 Difference]: Finished difference. Result has 270 places, 417 transitions, 3139 flow [2024-10-14 17:04:56,520 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=2854, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=402, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=377, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3139, PETRI_PLACES=270, PETRI_TRANSITIONS=417} [2024-10-14 17:04:56,521 INFO L277 CegarLoopForPetriNet]: 119 programPoint places, 151 predicate places. [2024-10-14 17:04:56,521 INFO L471 AbstractCegarLoop]: Abstraction has has 270 places, 417 transitions, 3139 flow [2024-10-14 17:04:56,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 93.6) internal successors, (936), 10 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:04:56,521 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:04:56,522 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] [2024-10-14 17:04:56,535 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-14 17:04:56,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-14 17:04:56,725 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)] === [2024-10-14 17:04:56,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:04:56,726 INFO L85 PathProgramCache]: Analyzing trace with hash 708473075, now seen corresponding path program 6 times [2024-10-14 17:04:56,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:04:56,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144291475] [2024-10-14 17:04:56,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:04:56,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:04:56,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:04:57,232 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-10-14 17:04:57,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:04:57,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144291475] [2024-10-14 17:04:57,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144291475] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:04:57,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329018392] [2024-10-14 17:04:57,232 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-14 17:04:57,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:04:57,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:04:57,234 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:04:57,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-14 17:04:57,324 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-10-14 17:04:57,324 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 17:04:57,325 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-14 17:04:57,326 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:04:57,458 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-10-14 17:04:57,531 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-14 17:04:57,531 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:04:57,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1329018392] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:04:57,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:04:57,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2024-10-14 17:04:57,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940532302] [2024-10-14 17:04:57,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:04:57,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 17:04:57,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:04:57,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 17:04:57,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-10-14 17:04:57,965 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 122 [2024-10-14 17:04:57,966 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 417 transitions, 3139 flow. Second operand has 10 states, 10 states have (on average 93.6) internal successors, (936), 10 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:04:57,966 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:04:57,966 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 122 [2024-10-14 17:04:57,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:00,398 INFO L124 PetriNetUnfolderBase]: 3707/13371 cut-off events. [2024-10-14 17:05:00,398 INFO L125 PetriNetUnfolderBase]: For 30857/31486 co-relation queries the response was YES. [2024-10-14 17:05:00,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43296 conditions, 13371 events. 3707/13371 cut-off events. For 30857/31486 co-relation queries the response was YES. Maximal size of possible extension queue 343. Compared 134825 event pairs, 362 based on Foata normal form. 120/13302 useless extension candidates. Maximal degree in co-relation 43043. Up to 2365 conditions per place. [2024-10-14 17:05:00,510 INFO L140 encePairwiseOnDemand]: 107/122 looper letters, 149 selfloop transitions, 35 changer transitions 0/503 dead transitions. [2024-10-14 17:05:00,510 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 503 transitions, 4263 flow [2024-10-14 17:05:00,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 17:05:00,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-14 17:05:00,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1016 transitions. [2024-10-14 17:05:00,513 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8327868852459016 [2024-10-14 17:05:00,513 INFO L175 Difference]: Start difference. First operand has 270 places, 417 transitions, 3139 flow. Second operand 10 states and 1016 transitions. [2024-10-14 17:05:00,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 503 transitions, 4263 flow [2024-10-14 17:05:00,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 503 transitions, 4165 flow, removed 27 selfloop flow, removed 3 redundant places. [2024-10-14 17:05:00,653 INFO L231 Difference]: Finished difference. Result has 282 places, 432 transitions, 3382 flow [2024-10-14 17:05:00,653 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=3078, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=417, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=387, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3382, PETRI_PLACES=282, PETRI_TRANSITIONS=432} [2024-10-14 17:05:00,654 INFO L277 CegarLoopForPetriNet]: 119 programPoint places, 163 predicate places. [2024-10-14 17:05:00,654 INFO L471 AbstractCegarLoop]: Abstraction has has 282 places, 432 transitions, 3382 flow [2024-10-14 17:05:00,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 93.6) internal successors, (936), 10 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:00,654 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:00,654 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] [2024-10-14 17:05:00,669 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-14 17:05:00,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-14 17:05:00,855 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)] === [2024-10-14 17:05:00,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:00,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1441669521, now seen corresponding path program 7 times [2024-10-14 17:05:00,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:00,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097469171] [2024-10-14 17:05:00,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:00,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:00,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:01,321 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-10-14 17:05:01,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:01,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097469171] [2024-10-14 17:05:01,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097469171] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:05:01,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284685197] [2024-10-14 17:05:01,322 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-14 17:05:01,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:05:01,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:05:01,327 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:05:01,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-14 17:05:01,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:01,429 INFO L255 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-10-14 17:05:01,430 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:05:01,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-10-14 17:05:01,633 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-14 17:05:01,635 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:05:01,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [284685197] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:01,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:05:01,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2024-10-14 17:05:01,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617599884] [2024-10-14 17:05:01,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:01,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 17:05:01,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:01,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 17:05:01,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-10-14 17:05:02,300 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 122 [2024-10-14 17:05:02,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 432 transitions, 3382 flow. Second operand has 10 states, 10 states have (on average 93.6) internal successors, (936), 10 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:02,301 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:02,301 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 122 [2024-10-14 17:05:02,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:04,777 INFO L124 PetriNetUnfolderBase]: 4052/14596 cut-off events. [2024-10-14 17:05:04,778 INFO L125 PetriNetUnfolderBase]: For 39279/39975 co-relation queries the response was YES. [2024-10-14 17:05:04,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48527 conditions, 14596 events. 4052/14596 cut-off events. For 39279/39975 co-relation queries the response was YES. Maximal size of possible extension queue 411. Compared 150093 event pairs, 436 based on Foata normal form. 108/14496 useless extension candidates. Maximal degree in co-relation 48268. Up to 2519 conditions per place. [2024-10-14 17:05:04,908 INFO L140 encePairwiseOnDemand]: 107/122 looper letters, 147 selfloop transitions, 37 changer transitions 0/503 dead transitions. [2024-10-14 17:05:04,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 503 transitions, 4485 flow [2024-10-14 17:05:04,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 17:05:04,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-14 17:05:04,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1018 transitions. [2024-10-14 17:05:04,910 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8344262295081967 [2024-10-14 17:05:04,910 INFO L175 Difference]: Start difference. First operand has 282 places, 432 transitions, 3382 flow. Second operand 10 states and 1018 transitions. [2024-10-14 17:05:04,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 503 transitions, 4485 flow [2024-10-14 17:05:05,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 503 transitions, 4383 flow, removed 26 selfloop flow, removed 3 redundant places. [2024-10-14 17:05:05,066 INFO L231 Difference]: Finished difference. Result has 295 places, 451 transitions, 3738 flow [2024-10-14 17:05:05,067 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=3302, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=432, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3738, PETRI_PLACES=295, PETRI_TRANSITIONS=451} [2024-10-14 17:05:05,067 INFO L277 CegarLoopForPetriNet]: 119 programPoint places, 176 predicate places. [2024-10-14 17:05:05,067 INFO L471 AbstractCegarLoop]: Abstraction has has 295 places, 451 transitions, 3738 flow [2024-10-14 17:05:05,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 93.6) internal successors, (936), 10 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:05,068 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:05,068 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] [2024-10-14 17:05:05,081 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-10-14 17:05:05,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-14 17:05:05,271 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)] === [2024-10-14 17:05:05,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:05,272 INFO L85 PathProgramCache]: Analyzing trace with hash 477434259, now seen corresponding path program 8 times [2024-10-14 17:05:05,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:05,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615251997] [2024-10-14 17:05:05,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:05,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:05,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:06,202 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-10-14 17:05:06,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:06,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615251997] [2024-10-14 17:05:06,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615251997] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:05:06,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284394394] [2024-10-14 17:05:06,203 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 17:05:06,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:05:06,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:05:06,204 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:05:06,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-14 17:05:06,293 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-14 17:05:06,294 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 17:05:06,294 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-10-14 17:05:06,295 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:05:06,458 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-10-14 17:05:06,521 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-14 17:05:06,522 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:05:06,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [284394394] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:06,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:05:06,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 22 [2024-10-14 17:05:06,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250929893] [2024-10-14 17:05:06,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:06,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 17:05:06,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:06,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 17:05:06,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=407, Unknown=0, NotChecked=0, Total=462 [2024-10-14 17:05:06,863 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 122 [2024-10-14 17:05:06,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 451 transitions, 3738 flow. Second operand has 10 states, 10 states have (on average 93.6) internal successors, (936), 10 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:06,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:06,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 122 [2024-10-14 17:05:06,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:09,737 INFO L124 PetriNetUnfolderBase]: 4625/16517 cut-off events. [2024-10-14 17:05:09,737 INFO L125 PetriNetUnfolderBase]: For 49981/50804 co-relation queries the response was YES. [2024-10-14 17:05:09,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56145 conditions, 16517 events. 4625/16517 cut-off events. For 49981/50804 co-relation queries the response was YES. Maximal size of possible extension queue 538. Compared 174976 event pairs, 450 based on Foata normal form. 139/16450 useless extension candidates. Maximal degree in co-relation 55879. Up to 2910 conditions per place. [2024-10-14 17:05:09,899 INFO L140 encePairwiseOnDemand]: 106/122 looper letters, 168 selfloop transitions, 46 changer transitions 0/533 dead transitions. [2024-10-14 17:05:09,899 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 533 transitions, 5042 flow [2024-10-14 17:05:09,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 17:05:09,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-14 17:05:09,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1020 transitions. [2024-10-14 17:05:09,901 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8360655737704918 [2024-10-14 17:05:09,901 INFO L175 Difference]: Start difference. First operand has 295 places, 451 transitions, 3738 flow. Second operand 10 states and 1020 transitions. [2024-10-14 17:05:09,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 533 transitions, 5042 flow [2024-10-14 17:05:10,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 533 transitions, 4937 flow, removed 52 selfloop flow, removed 1 redundant places. [2024-10-14 17:05:10,118 INFO L231 Difference]: Finished difference. Result has 310 places, 469 transitions, 4092 flow [2024-10-14 17:05:10,118 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=3633, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=451, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4092, PETRI_PLACES=310, PETRI_TRANSITIONS=469} [2024-10-14 17:05:10,119 INFO L277 CegarLoopForPetriNet]: 119 programPoint places, 191 predicate places. [2024-10-14 17:05:10,119 INFO L471 AbstractCegarLoop]: Abstraction has has 310 places, 469 transitions, 4092 flow [2024-10-14 17:05:10,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 93.6) internal successors, (936), 10 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:10,119 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:10,119 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] [2024-10-14 17:05:10,132 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-10-14 17:05:10,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:05:10,324 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)] === [2024-10-14 17:05:10,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:10,324 INFO L85 PathProgramCache]: Analyzing trace with hash -2099003809, now seen corresponding path program 9 times [2024-10-14 17:05:10,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:10,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282609942] [2024-10-14 17:05:10,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:10,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:10,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:10,792 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-10-14 17:05:10,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:10,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282609942] [2024-10-14 17:05:10,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282609942] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:05:10,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1783797304] [2024-10-14 17:05:10,793 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-14 17:05:10,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:05:10,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:05:10,796 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:05:10,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-14 17:05:10,896 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-10-14 17:05:10,896 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 17:05:10,897 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-14 17:05:10,899 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:05:11,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-10-14 17:05:11,118 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-14 17:05:11,118 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:05:11,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1783797304] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:11,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:05:11,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2024-10-14 17:05:11,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373624281] [2024-10-14 17:05:11,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:11,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 17:05:11,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:11,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 17:05:11,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2024-10-14 17:05:11,628 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 122 [2024-10-14 17:05:11,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 469 transitions, 4092 flow. Second operand has 10 states, 10 states have (on average 93.6) internal successors, (936), 10 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:11,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:11,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 122 [2024-10-14 17:05:11,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:15,083 INFO L124 PetriNetUnfolderBase]: 5214/18568 cut-off events. [2024-10-14 17:05:15,083 INFO L125 PetriNetUnfolderBase]: For 62032/62979 co-relation queries the response was YES. [2024-10-14 17:05:15,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64416 conditions, 18568 events. 5214/18568 cut-off events. For 62032/62979 co-relation queries the response was YES. Maximal size of possible extension queue 662. Compared 202513 event pairs, 501 based on Foata normal form. 152/18502 useless extension candidates. Maximal degree in co-relation 64142. Up to 3261 conditions per place. [2024-10-14 17:05:15,293 INFO L140 encePairwiseOnDemand]: 106/122 looper letters, 183 selfloop transitions, 47 changer transitions 0/549 dead transitions. [2024-10-14 17:05:15,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 549 transitions, 5350 flow [2024-10-14 17:05:15,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 17:05:15,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-14 17:05:15,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1020 transitions. [2024-10-14 17:05:15,295 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8360655737704918 [2024-10-14 17:05:15,295 INFO L175 Difference]: Start difference. First operand has 310 places, 469 transitions, 4092 flow. Second operand 10 states and 1020 transitions. [2024-10-14 17:05:15,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 549 transitions, 5350 flow [2024-10-14 17:05:15,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 549 transitions, 5263 flow, removed 43 selfloop flow, removed 1 redundant places. [2024-10-14 17:05:15,633 INFO L231 Difference]: Finished difference. Result has 324 places, 486 transitions, 4416 flow [2024-10-14 17:05:15,634 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=4005, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=469, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4416, PETRI_PLACES=324, PETRI_TRANSITIONS=486} [2024-10-14 17:05:15,635 INFO L277 CegarLoopForPetriNet]: 119 programPoint places, 205 predicate places. [2024-10-14 17:05:15,635 INFO L471 AbstractCegarLoop]: Abstraction has has 324 places, 486 transitions, 4416 flow [2024-10-14 17:05:15,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 93.6) internal successors, (936), 10 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:15,635 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:15,635 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] [2024-10-14 17:05:15,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-10-14 17:05:15,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-14 17:05:15,836 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)] === [2024-10-14 17:05:15,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:15,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1408800763, now seen corresponding path program 10 times [2024-10-14 17:05:15,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:15,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522202259] [2024-10-14 17:05:15,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:15,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:15,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:16,535 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-10-14 17:05:16,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:16,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522202259] [2024-10-14 17:05:16,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522202259] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:05:16,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1070429873] [2024-10-14 17:05:16,535 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-14 17:05:16,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:05:16,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:05:16,537 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:05:16,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-14 17:05:16,654 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-14 17:05:16,654 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 17:05:16,655 INFO L255 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-14 17:05:16,657 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:05:16,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-14 17:05:16,828 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-14 17:05:16,829 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 11 [2024-10-14 17:05:16,864 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-14 17:05:16,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-10-14 17:05:16,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2024-10-14 17:05:16,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2024-10-14 17:05:16,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2024-10-14 17:05:17,015 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-14 17:05:17,015 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:05:17,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1070429873] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:17,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:05:17,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [10] total 24 [2024-10-14 17:05:17,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699625098] [2024-10-14 17:05:17,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:17,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-14 17:05:17,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:17,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-14 17:05:17,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2024-10-14 17:05:17,851 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 122 [2024-10-14 17:05:17,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 486 transitions, 4416 flow. Second operand has 16 states, 16 states have (on average 74.375) internal successors, (1190), 16 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:17,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:17,853 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 122 [2024-10-14 17:05:17,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:23,768 INFO L124 PetriNetUnfolderBase]: 8730/25612 cut-off events. [2024-10-14 17:05:23,768 INFO L125 PetriNetUnfolderBase]: For 134742/136341 co-relation queries the response was YES. [2024-10-14 17:05:23,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106164 conditions, 25612 events. 8730/25612 cut-off events. For 134742/136341 co-relation queries the response was YES. Maximal size of possible extension queue 812. Compared 271094 event pairs, 1764 based on Foata normal form. 232/25505 useless extension candidates. Maximal degree in co-relation 105883. Up to 6141 conditions per place. [2024-10-14 17:05:24,047 INFO L140 encePairwiseOnDemand]: 94/122 looper letters, 1122 selfloop transitions, 146 changer transitions 0/1412 dead transitions. [2024-10-14 17:05:24,048 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 1412 transitions, 15215 flow [2024-10-14 17:05:24,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-14 17:05:24,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-14 17:05:24,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1827 transitions. [2024-10-14 17:05:24,053 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7131147540983607 [2024-10-14 17:05:24,053 INFO L175 Difference]: Start difference. First operand has 324 places, 486 transitions, 4416 flow. Second operand 21 states and 1827 transitions. [2024-10-14 17:05:24,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 1412 transitions, 15215 flow [2024-10-14 17:05:24,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 1412 transitions, 15059 flow, removed 57 selfloop flow, removed 3 redundant places. [2024-10-14 17:05:24,503 INFO L231 Difference]: Finished difference. Result has 355 places, 596 transitions, 6253 flow [2024-10-14 17:05:24,504 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=4317, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=486, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=382, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=6253, PETRI_PLACES=355, PETRI_TRANSITIONS=596} [2024-10-14 17:05:24,504 INFO L277 CegarLoopForPetriNet]: 119 programPoint places, 236 predicate places. [2024-10-14 17:05:24,504 INFO L471 AbstractCegarLoop]: Abstraction has has 355 places, 596 transitions, 6253 flow [2024-10-14 17:05:24,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 74.375) internal successors, (1190), 16 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:24,505 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:24,505 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] [2024-10-14 17:05:24,519 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-10-14 17:05:24,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:05:24,709 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)] === [2024-10-14 17:05:24,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:24,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1439686711, now seen corresponding path program 11 times [2024-10-14 17:05:24,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:24,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364381456] [2024-10-14 17:05:24,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:24,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:24,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:25,009 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-10-14 17:05:25,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:25,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364381456] [2024-10-14 17:05:25,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364381456] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:05:25,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679747617] [2024-10-14 17:05:25,010 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-14 17:05:25,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:05:25,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:05:25,011 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:05:25,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-10-14 17:05:25,290 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-10-14 17:05:25,290 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 17:05:25,291 INFO L255 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-14 17:05:25,292 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:05:25,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-10-14 17:05:25,474 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-14 17:05:25,474 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:05:25,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679747617] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:25,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:05:25,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2024-10-14 17:05:25,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875739433] [2024-10-14 17:05:25,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:25,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 17:05:25,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:25,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 17:05:25,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-10-14 17:05:25,845 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 122 [2024-10-14 17:05:25,847 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 596 transitions, 6253 flow. Second operand has 10 states, 10 states have (on average 93.6) internal successors, (936), 10 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:25,847 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:25,847 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 122 [2024-10-14 17:05:25,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:29,934 INFO L124 PetriNetUnfolderBase]: 5923/20768 cut-off events. [2024-10-14 17:05:29,935 INFO L125 PetriNetUnfolderBase]: For 97415/98786 co-relation queries the response was YES. [2024-10-14 17:05:30,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78703 conditions, 20768 events. 5923/20768 cut-off events. For 97415/98786 co-relation queries the response was YES. Maximal size of possible extension queue 790. Compared 231548 event pairs, 532 based on Foata normal form. 192/20704 useless extension candidates. Maximal degree in co-relation 78408. Up to 3684 conditions per place. [2024-10-14 17:05:30,429 INFO L140 encePairwiseOnDemand]: 106/122 looper letters, 194 selfloop transitions, 63 changer transitions 0/659 dead transitions. [2024-10-14 17:05:30,430 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 659 transitions, 7523 flow [2024-10-14 17:05:30,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 17:05:30,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-14 17:05:30,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1023 transitions. [2024-10-14 17:05:30,432 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8385245901639344 [2024-10-14 17:05:30,432 INFO L175 Difference]: Start difference. First operand has 355 places, 596 transitions, 6253 flow. Second operand 10 states and 1023 transitions. [2024-10-14 17:05:30,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 659 transitions, 7523 flow [2024-10-14 17:05:30,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 659 transitions, 7350 flow, removed 58 selfloop flow, removed 3 redundant places. [2024-10-14 17:05:30,954 INFO L231 Difference]: Finished difference. Result has 366 places, 609 transitions, 6546 flow [2024-10-14 17:05:30,955 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=6108, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=596, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=537, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6546, PETRI_PLACES=366, PETRI_TRANSITIONS=609} [2024-10-14 17:05:30,955 INFO L277 CegarLoopForPetriNet]: 119 programPoint places, 247 predicate places. [2024-10-14 17:05:30,955 INFO L471 AbstractCegarLoop]: Abstraction has has 366 places, 609 transitions, 6546 flow [2024-10-14 17:05:30,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 93.6) internal successors, (936), 10 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:30,956 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:30,956 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] [2024-10-14 17:05:30,968 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-10-14 17:05:31,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:05:31,156 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)] === [2024-10-14 17:05:31,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:31,157 INFO L85 PathProgramCache]: Analyzing trace with hash 691013271, now seen corresponding path program 12 times [2024-10-14 17:05:31,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:31,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288862077] [2024-10-14 17:05:31,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:31,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:31,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:31,430 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-10-14 17:05:31,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:31,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288862077] [2024-10-14 17:05:31,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288862077] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:05:31,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461161308] [2024-10-14 17:05:31,431 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-14 17:05:31,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:05:31,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:05:31,433 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:05:31,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-10-14 17:05:31,548 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-10-14 17:05:31,548 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 17:05:31,549 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-10-14 17:05:31,551 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:05:31,698 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-10-14 17:05:31,741 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-14 17:05:31,742 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:05:31,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1461161308] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:31,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:05:31,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2024-10-14 17:05:31,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150265346] [2024-10-14 17:05:31,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:31,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 17:05:31,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:31,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 17:05:31,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-10-14 17:05:32,171 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 122 [2024-10-14 17:05:32,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 609 transitions, 6546 flow. Second operand has 10 states, 10 states have (on average 93.6) internal successors, (936), 10 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:32,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:32,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 122 [2024-10-14 17:05:32,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand