./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/28-race_reach_72-funloop_hard_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version fca748b1 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/28-race_reach_72-funloop_hard_racing.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 566e2cbe460cf96671c9cef5a53ce51910e23c462e96f394be80b957976729c5 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 13:50:31,741 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 13:50:31,813 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-20 13:50:31,820 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 13:50:31,821 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 13:50:31,850 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 13:50:31,852 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 13:50:31,852 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 13:50:31,853 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 13:50:31,854 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 13:50:31,855 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 13:50:31,856 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 13:50:31,856 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 13:50:31,858 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 13:50:31,858 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 13:50:31,858 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 13:50:31,858 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 13:50:31,859 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 13:50:31,859 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 13:50:31,859 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 13:50:31,859 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 13:50:31,860 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 13:50:31,863 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-20 13:50:31,863 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 13:50:31,864 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 13:50:31,864 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 13:50:31,864 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 13:50:31,864 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 13:50:31,864 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 13:50:31,865 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 13:50:31,865 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 13:50:31,865 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:50:31,865 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 13:50:31,865 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 13:50:31,866 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 13:50:31,866 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 13:50:31,866 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 13:50:31,866 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 13:50:31,866 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 13:50:31,867 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 13:50:31,867 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 13:50:31,869 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 566e2cbe460cf96671c9cef5a53ce51910e23c462e96f394be80b957976729c5 [2024-11-20 13:50:32,144 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 13:50:32,173 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 13:50:32,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 13:50:32,177 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 13:50:32,178 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 13:50:32,179 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_72-funloop_hard_racing.i [2024-11-20 13:50:33,588 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 13:50:33,857 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 13:50:33,858 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_72-funloop_hard_racing.i [2024-11-20 13:50:33,885 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10cc6f46f/10924c3797b949038871f3cc0c4e7b60/FLAG09b4c2c86 [2024-11-20 13:50:33,896 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10cc6f46f/10924c3797b949038871f3cc0c4e7b60 [2024-11-20 13:50:33,899 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 13:50:33,900 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 13:50:33,901 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 13:50:33,902 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 13:50:33,907 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 13:50:33,908 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:50:33" (1/1) ... [2024-11-20 13:50:33,909 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ad22d12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:50:33, skipping insertion in model container [2024-11-20 13:50:33,909 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:50:33" (1/1) ... [2024-11-20 13:50:33,960 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 13:50:34,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:50:34,533 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 13:50:34,619 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:50:34,673 INFO L204 MainTranslator]: Completed translation [2024-11-20 13:50:34,673 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:50:34 WrapperNode [2024-11-20 13:50:34,673 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 13:50:34,674 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 13:50:34,674 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 13:50:34,674 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 13:50:34,680 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:50:34" (1/1) ... [2024-11-20 13:50:34,703 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:50:34" (1/1) ... [2024-11-20 13:50:34,744 INFO L138 Inliner]: procedures = 272, calls = 110, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 448 [2024-11-20 13:50:34,745 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 13:50:34,745 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 13:50:34,745 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 13:50:34,746 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 13:50:34,761 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:50:34" (1/1) ... [2024-11-20 13:50:34,763 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:50:34" (1/1) ... [2024-11-20 13:50:34,770 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:50:34" (1/1) ... [2024-11-20 13:50:34,771 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:50:34" (1/1) ... [2024-11-20 13:50:34,797 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:50:34" (1/1) ... [2024-11-20 13:50:34,811 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:50:34" (1/1) ... [2024-11-20 13:50:34,814 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:50:34" (1/1) ... [2024-11-20 13:50:34,817 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:50:34" (1/1) ... [2024-11-20 13:50:34,822 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 13:50:34,823 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 13:50:34,823 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 13:50:34,823 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 13:50:34,824 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:50:34" (1/1) ... [2024-11-20 13:50:34,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:50:34,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:50:34,867 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 13:50:34,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 13:50:34,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-20 13:50:34,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 13:50:34,922 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-20 13:50:34,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-20 13:50:34,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-20 13:50:34,923 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-20 13:50:34,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 13:50:34,924 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-20 13:50:34,924 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-20 13:50:34,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-20 13:50:34,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 13:50:34,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 13:50:34,926 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 13:50:35,115 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 13:50:35,117 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 13:50:35,788 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 13:50:35,789 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 13:50:35,886 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 13:50:35,888 INFO L316 CfgBuilder]: Removed 35 assume(true) statements. [2024-11-20 13:50:35,888 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:50:35 BoogieIcfgContainer [2024-11-20 13:50:35,888 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 13:50:35,891 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 13:50:35,892 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 13:50:35,896 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 13:50:35,896 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:50:33" (1/3) ... [2024-11-20 13:50:35,897 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@549ae72f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:50:35, skipping insertion in model container [2024-11-20 13:50:35,897 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:50:34" (2/3) ... [2024-11-20 13:50:35,898 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@549ae72f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:50:35, skipping insertion in model container [2024-11-20 13:50:35,898 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:50:35" (3/3) ... [2024-11-20 13:50:35,899 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_72-funloop_hard_racing.i [2024-11-20 13:50:35,917 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 13:50:35,918 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2024-11-20 13:50:35,918 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 13:50:36,032 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-20 13:50:36,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 404 places, 449 transitions, 905 flow [2024-11-20 13:50:36,315 INFO L124 PetriNetUnfolderBase]: 78/687 cut-off events. [2024-11-20 13:50:36,316 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 13:50:36,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 692 conditions, 687 events. 78/687 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 3411 event pairs, 0 based on Foata normal form. 0/577 useless extension candidates. Maximal degree in co-relation 354. Up to 8 conditions per place. [2024-11-20 13:50:36,334 INFO L82 GeneralOperation]: Start removeDead. Operand has 404 places, 449 transitions, 905 flow [2024-11-20 13:50:36,344 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 404 places, 449 transitions, 905 flow [2024-11-20 13:50:36,356 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:50:36,363 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;@3c8a157a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:50:36,363 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-20 13:50:36,380 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:50:36,381 INFO L124 PetriNetUnfolderBase]: 4/119 cut-off events. [2024-11-20 13:50:36,381 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:50:36,381 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:50:36,382 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:50:36,383 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-20 13:50:36,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:50:36,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1892056923, now seen corresponding path program 1 times [2024-11-20 13:50:36,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:50:36,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512573383] [2024-11-20 13:50:36,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:50:36,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:50:36,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:50:36,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:50:36,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:50:36,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512573383] [2024-11-20 13:50:36,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512573383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:50:36,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:50:36,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 13:50:36,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954893947] [2024-11-20 13:50:36,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:50:36,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:50:36,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:50:36,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:50:36,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:50:36,917 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 373 out of 449 [2024-11-20 13:50:36,926 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 449 transitions, 905 flow. Second operand has 3 states, 3 states have (on average 374.3333333333333) internal successors, (1123), 3 states have internal predecessors, (1123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:50:36,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:50:36,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 373 of 449 [2024-11-20 13:50:36,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:50:37,501 INFO L124 PetriNetUnfolderBase]: 181/2382 cut-off events. [2024-11-20 13:50:37,503 INFO L125 PetriNetUnfolderBase]: For 7/8 co-relation queries the response was YES. [2024-11-20 13:50:37,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2729 conditions, 2382 events. 181/2382 cut-off events. For 7/8 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 19868 event pairs, 136 based on Foata normal form. 404/2586 useless extension candidates. Maximal degree in co-relation 2390. Up to 340 conditions per place. [2024-11-20 13:50:37,525 INFO L140 encePairwiseOnDemand]: 405/449 looper letters, 31 selfloop transitions, 2 changer transitions 0/403 dead transitions. [2024-11-20 13:50:37,525 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 403 transitions, 879 flow [2024-11-20 13:50:37,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:50:37,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:50:37,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1195 transitions. [2024-11-20 13:50:37,553 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8871566443949518 [2024-11-20 13:50:37,555 INFO L175 Difference]: Start difference. First operand has 404 places, 449 transitions, 905 flow. Second operand 3 states and 1195 transitions. [2024-11-20 13:50:37,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 403 transitions, 879 flow [2024-11-20 13:50:37,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 403 transitions, 879 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:50:37,576 INFO L231 Difference]: Finished difference. Result has 401 places, 403 transitions, 823 flow [2024-11-20 13:50:37,581 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=811, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=402, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=823, PETRI_PLACES=401, PETRI_TRANSITIONS=403} [2024-11-20 13:50:37,585 INFO L277 CegarLoopForPetriNet]: 404 programPoint places, -3 predicate places. [2024-11-20 13:50:37,586 INFO L471 AbstractCegarLoop]: Abstraction has has 401 places, 403 transitions, 823 flow [2024-11-20 13:50:37,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 374.3333333333333) internal successors, (1123), 3 states have internal predecessors, (1123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:50:37,588 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:50:37,589 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:50:37,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 13:50:37,589 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-20 13:50:37,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:50:37,591 INFO L85 PathProgramCache]: Analyzing trace with hash -424746447, now seen corresponding path program 1 times [2024-11-20 13:50:37,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:50:37,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143855856] [2024-11-20 13:50:37,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:50:37,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:50:37,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:50:37,879 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:50:37,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:50:37,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143855856] [2024-11-20 13:50:37,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143855856] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:50:37,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043298279] [2024-11-20 13:50:37,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:50:37,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:50:37,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:50:37,884 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:50:37,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 13:50:37,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:50:37,996 INFO L255 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 13:50:38,002 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:50:38,070 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:50:38,073 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 13:50:38,131 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:50:38,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2043298279] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 13:50:38,135 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 13:50:38,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-20 13:50:38,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871455917] [2024-11-20 13:50:38,137 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 13:50:38,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 13:50:38,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:50:38,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 13:50:38,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-20 13:50:38,182 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 449 [2024-11-20 13:50:38,186 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 403 transitions, 823 flow. Second operand has 10 states, 10 states have (on average 371.8) internal successors, (3718), 10 states have internal predecessors, (3718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:50:38,187 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:50:38,187 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 449 [2024-11-20 13:50:38,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:50:38,752 INFO L124 PetriNetUnfolderBase]: 181/2389 cut-off events. [2024-11-20 13:50:38,753 INFO L125 PetriNetUnfolderBase]: For 8/9 co-relation queries the response was YES. [2024-11-20 13:50:38,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2755 conditions, 2389 events. 181/2389 cut-off events. For 8/9 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 19833 event pairs, 136 based on Foata normal form. 2/2191 useless extension candidates. Maximal degree in co-relation 2660. Up to 340 conditions per place. [2024-11-20 13:50:38,767 INFO L140 encePairwiseOnDemand]: 443/449 looper letters, 35 selfloop transitions, 9 changer transitions 0/411 dead transitions. [2024-11-20 13:50:38,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 411 transitions, 929 flow [2024-11-20 13:50:38,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 13:50:38,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 13:50:38,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3376 transitions. [2024-11-20 13:50:38,776 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8354367730759713 [2024-11-20 13:50:38,776 INFO L175 Difference]: Start difference. First operand has 401 places, 403 transitions, 823 flow. Second operand 9 states and 3376 transitions. [2024-11-20 13:50:38,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 411 transitions, 929 flow [2024-11-20 13:50:38,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 411 transitions, 927 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:50:38,785 INFO L231 Difference]: Finished difference. Result has 411 places, 409 transitions, 871 flow [2024-11-20 13:50:38,786 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=821, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=403, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=397, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=871, PETRI_PLACES=411, PETRI_TRANSITIONS=409} [2024-11-20 13:50:38,788 INFO L277 CegarLoopForPetriNet]: 404 programPoint places, 7 predicate places. [2024-11-20 13:50:38,788 INFO L471 AbstractCegarLoop]: Abstraction has has 411 places, 409 transitions, 871 flow [2024-11-20 13:50:38,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 371.8) internal successors, (3718), 10 states have internal predecessors, (3718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:50:38,791 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:50:38,791 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:50:38,802 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 13:50:38,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:50:38,993 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-20 13:50:38,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:50:38,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1050401679, now seen corresponding path program 2 times [2024-11-20 13:50:38,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:50:38,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103965164] [2024-11-20 13:50:38,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:50:38,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:50:39,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:50:39,270 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:50:39,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:50:39,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103965164] [2024-11-20 13:50:39,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103965164] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:50:39,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766494103] [2024-11-20 13:50:39,273 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 13:50:39,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:50:39,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:50:39,276 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:50:39,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 13:50:39,376 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-20 13:50:39,376 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 13:50:39,378 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-20 13:50:39,382 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:50:39,466 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-20 13:50:39,498 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 19 treesize of output 18 [2024-11-20 13:50:39,542 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:50:39,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-11-20 13:50:39,592 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:50:39,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-11-20 13:50:39,664 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-20 13:50:39,664 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:50:39,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766494103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:50:39,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:50:39,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-11-20 13:50:39,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529136958] [2024-11-20 13:50:39,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:50:39,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 13:50:39,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:50:39,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 13:50:39,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-20 13:50:40,133 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 300 out of 449 [2024-11-20 13:50:40,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 409 transitions, 871 flow. Second operand has 8 states, 8 states have (on average 301.125) internal successors, (2409), 8 states have internal predecessors, (2409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:50:40,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:50:40,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 300 of 449 [2024-11-20 13:50:40,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:50:41,623 INFO L124 PetriNetUnfolderBase]: 2276/8865 cut-off events. [2024-11-20 13:50:41,623 INFO L125 PetriNetUnfolderBase]: For 11/14 co-relation queries the response was YES. [2024-11-20 13:50:41,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13252 conditions, 8865 events. 2276/8865 cut-off events. For 11/14 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 89336 event pairs, 1932 based on Foata normal form. 1/8068 useless extension candidates. Maximal degree in co-relation 13128. Up to 4191 conditions per place. [2024-11-20 13:50:41,669 INFO L140 encePairwiseOnDemand]: 437/449 looper letters, 162 selfloop transitions, 11 changer transitions 0/477 dead transitions. [2024-11-20 13:50:41,669 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 477 transitions, 1353 flow [2024-11-20 13:50:41,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 13:50:41,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-20 13:50:41,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2575 transitions. [2024-11-20 13:50:41,675 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7168708240534521 [2024-11-20 13:50:41,675 INFO L175 Difference]: Start difference. First operand has 411 places, 409 transitions, 871 flow. Second operand 8 states and 2575 transitions. [2024-11-20 13:50:41,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 477 transitions, 1353 flow [2024-11-20 13:50:41,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 477 transitions, 1347 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-20 13:50:41,684 INFO L231 Difference]: Finished difference. Result has 422 places, 416 transitions, 932 flow [2024-11-20 13:50:41,686 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=865, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=932, PETRI_PLACES=422, PETRI_TRANSITIONS=416} [2024-11-20 13:50:41,687 INFO L277 CegarLoopForPetriNet]: 404 programPoint places, 18 predicate places. [2024-11-20 13:50:41,688 INFO L471 AbstractCegarLoop]: Abstraction has has 422 places, 416 transitions, 932 flow [2024-11-20 13:50:41,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 301.125) internal successors, (2409), 8 states have internal predecessors, (2409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:50:41,690 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:50:41,690 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:50:41,701 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-20 13:50:41,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-20 13:50:41,895 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-20 13:50:41,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:50:41,896 INFO L85 PathProgramCache]: Analyzing trace with hash -923239633, now seen corresponding path program 1 times [2024-11-20 13:50:41,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:50:41,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994655502] [2024-11-20 13:50:41,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:50:41,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:50:41,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:50:42,122 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-20 13:50:42,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:50:42,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994655502] [2024-11-20 13:50:42,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994655502] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:50:42,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946068471] [2024-11-20 13:50:42,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:50:42,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:50:42,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:50:42,127 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:50:42,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 13:50:42,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:50:42,229 INFO L255 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-20 13:50:42,232 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:50:42,285 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-20 13:50:42,285 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 13:50:42,379 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-20 13:50:42,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1946068471] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 13:50:42,383 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 13:50:42,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-20 13:50:42,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865367224] [2024-11-20 13:50:42,384 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 13:50:42,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-20 13:50:42,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:50:42,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-20 13:50:42,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-20 13:50:42,414 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 449 [2024-11-20 13:50:42,422 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 416 transitions, 932 flow. Second operand has 18 states, 18 states have (on average 371.94444444444446) internal successors, (6695), 18 states have internal predecessors, (6695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:50:42,422 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:50:42,422 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 449 [2024-11-20 13:50:42,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:50:43,048 INFO L124 PetriNetUnfolderBase]: 193/2363 cut-off events. [2024-11-20 13:50:43,049 INFO L125 PetriNetUnfolderBase]: For 33/38 co-relation queries the response was YES. [2024-11-20 13:50:43,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2868 conditions, 2363 events. 193/2363 cut-off events. For 33/38 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 19721 event pairs, 138 based on Foata normal form. 4/2172 useless extension candidates. Maximal degree in co-relation 2667. Up to 341 conditions per place. [2024-11-20 13:50:43,064 INFO L140 encePairwiseOnDemand]: 443/449 looper letters, 39 selfloop transitions, 21 changer transitions 0/434 dead transitions. [2024-11-20 13:50:43,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 434 transitions, 1140 flow [2024-11-20 13:50:43,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-20 13:50:43,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-20 13:50:43,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 7834 transitions. [2024-11-20 13:50:43,080 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8308410223777707 [2024-11-20 13:50:43,081 INFO L175 Difference]: Start difference. First operand has 422 places, 416 transitions, 932 flow. Second operand 21 states and 7834 transitions. [2024-11-20 13:50:43,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 434 transitions, 1140 flow [2024-11-20 13:50:43,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 434 transitions, 1133 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:50:43,090 INFO L231 Difference]: Finished difference. Result has 445 places, 429 transitions, 1055 flow [2024-11-20 13:50:43,091 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=925, PETRI_DIFFERENCE_MINUEND_PLACES=420, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=416, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1055, PETRI_PLACES=445, PETRI_TRANSITIONS=429} [2024-11-20 13:50:43,091 INFO L277 CegarLoopForPetriNet]: 404 programPoint places, 41 predicate places. [2024-11-20 13:50:43,091 INFO L471 AbstractCegarLoop]: Abstraction has has 445 places, 429 transitions, 1055 flow [2024-11-20 13:50:43,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 371.94444444444446) internal successors, (6695), 18 states have internal predecessors, (6695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:50:43,096 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:50:43,096 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:50:43,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-20 13:50:43,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:50:43,300 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-20 13:50:43,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:50:43,301 INFO L85 PathProgramCache]: Analyzing trace with hash 430944175, now seen corresponding path program 2 times [2024-11-20 13:50:43,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:50:43,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422526156] [2024-11-20 13:50:43,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:50:43,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:50:43,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:50:43,724 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-20 13:50:43,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:50:43,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422526156] [2024-11-20 13:50:43,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422526156] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:50:43,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591443567] [2024-11-20 13:50:43,725 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 13:50:43,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:50:43,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:50:43,728 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:50:43,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-20 13:50:43,823 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-20 13:50:43,823 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 13:50:43,825 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-20 13:50:43,829 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:50:43,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-20 13:50:43,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-20 13:50:43,903 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:50:43,903 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-11-20 13:50:43,946 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:50:43,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-11-20 13:50:43,981 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-20 13:50:43,983 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:50:43,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591443567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:50:43,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:50:43,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-20 13:50:43,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018971499] [2024-11-20 13:50:43,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:50:43,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:50:43,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:50:43,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:50:43,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-20 13:50:44,336 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 449 [2024-11-20 13:50:44,338 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 429 transitions, 1055 flow. Second operand has 6 states, 6 states have (on average 303.6666666666667) internal successors, (1822), 6 states have internal predecessors, (1822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:50:44,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:50:44,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 449 [2024-11-20 13:50:44,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:50:46,189 INFO L124 PetriNetUnfolderBase]: 2359/9114 cut-off events. [2024-11-20 13:50:46,189 INFO L125 PetriNetUnfolderBase]: For 374/381 co-relation queries the response was YES. [2024-11-20 13:50:46,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14191 conditions, 9114 events. 2359/9114 cut-off events. For 374/381 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 92146 event pairs, 1820 based on Foata normal form. 29/8376 useless extension candidates. Maximal degree in co-relation 13983. Up to 4319 conditions per place. [2024-11-20 13:50:46,225 INFO L140 encePairwiseOnDemand]: 422/449 looper letters, 135 selfloop transitions, 92 changer transitions 0/545 dead transitions. [2024-11-20 13:50:46,226 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 545 transitions, 1763 flow [2024-11-20 13:50:46,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:50:46,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:50:46,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2028 transitions. [2024-11-20 13:50:46,230 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7527839643652561 [2024-11-20 13:50:46,231 INFO L175 Difference]: Start difference. First operand has 445 places, 429 transitions, 1055 flow. Second operand 6 states and 2028 transitions. [2024-11-20 13:50:46,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 545 transitions, 1763 flow [2024-11-20 13:50:46,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 545 transitions, 1739 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-20 13:50:46,245 INFO L231 Difference]: Finished difference. Result has 449 places, 513 transitions, 1639 flow [2024-11-20 13:50:46,246 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=1031, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=429, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=397, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1639, PETRI_PLACES=449, PETRI_TRANSITIONS=513} [2024-11-20 13:50:46,247 INFO L277 CegarLoopForPetriNet]: 404 programPoint places, 45 predicate places. [2024-11-20 13:50:46,247 INFO L471 AbstractCegarLoop]: Abstraction has has 449 places, 513 transitions, 1639 flow [2024-11-20 13:50:46,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 303.6666666666667) internal successors, (1822), 6 states have internal predecessors, (1822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:50:46,249 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:50:46,249 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:50:46,257 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-20 13:50:46,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:50:46,450 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-20 13:50:46,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:50:46,450 INFO L85 PathProgramCache]: Analyzing trace with hash 474368866, now seen corresponding path program 1 times [2024-11-20 13:50:46,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:50:46,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744401741] [2024-11-20 13:50:46,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:50:46,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:50:46,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:50:46,952 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-20 13:50:46,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:50:46,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744401741] [2024-11-20 13:50:46,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744401741] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:50:46,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1518837571] [2024-11-20 13:50:46,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:50:46,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:50:46,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:50:46,956 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:50:46,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-20 13:50:47,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:50:47,068 INFO L255 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-20 13:50:47,071 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:50:47,156 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-20 13:50:47,157 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 13:50:47,363 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-20 13:50:47,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1518837571] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 13:50:47,364 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 13:50:47,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-20 13:50:47,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569548498] [2024-11-20 13:50:47,364 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 13:50:47,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-20 13:50:47,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:50:47,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-20 13:50:47,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-20 13:50:47,397 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 449 [2024-11-20 13:50:47,403 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 513 transitions, 1639 flow. Second operand has 23 states, 23 states have (on average 372.04347826086956) internal successors, (8557), 23 states have internal predecessors, (8557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:50:47,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:50:47,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 449 [2024-11-20 13:50:47,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:50:48,262 INFO L124 PetriNetUnfolderBase]: 350/3142 cut-off events. [2024-11-20 13:50:48,262 INFO L125 PetriNetUnfolderBase]: For 546/615 co-relation queries the response was YES. [2024-11-20 13:50:48,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4901 conditions, 3142 events. 350/3142 cut-off events. For 546/615 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 28044 event pairs, 136 based on Foata normal form. 3/2908 useless extension candidates. Maximal degree in co-relation 4613. Up to 598 conditions per place. [2024-11-20 13:50:48,278 INFO L140 encePairwiseOnDemand]: 443/449 looper letters, 42 selfloop transitions, 30 changer transitions 0/530 dead transitions. [2024-11-20 13:50:48,278 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 478 places, 530 transitions, 1905 flow [2024-11-20 13:50:48,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-20 13:50:48,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-20 13:50:48,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 11175 transitions. [2024-11-20 13:50:48,299 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8296213808463252 [2024-11-20 13:50:48,299 INFO L175 Difference]: Start difference. First operand has 449 places, 513 transitions, 1639 flow. Second operand 30 states and 11175 transitions. [2024-11-20 13:50:48,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 478 places, 530 transitions, 1905 flow [2024-11-20 13:50:48,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 478 places, 530 transitions, 1887 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-20 13:50:48,314 INFO L231 Difference]: Finished difference. Result has 482 places, 523 transitions, 1773 flow [2024-11-20 13:50:48,315 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=1621, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=513, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=490, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1773, PETRI_PLACES=482, PETRI_TRANSITIONS=523} [2024-11-20 13:50:48,316 INFO L277 CegarLoopForPetriNet]: 404 programPoint places, 78 predicate places. [2024-11-20 13:50:48,316 INFO L471 AbstractCegarLoop]: Abstraction has has 482 places, 523 transitions, 1773 flow [2024-11-20 13:50:48,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 372.04347826086956) internal successors, (8557), 23 states have internal predecessors, (8557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:50:48,319 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:50:48,319 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:50:48,329 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-20 13:50:48,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:50:48,524 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-20 13:50:48,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:50:48,527 INFO L85 PathProgramCache]: Analyzing trace with hash 600129272, now seen corresponding path program 2 times [2024-11-20 13:50:48,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:50:48,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391417100] [2024-11-20 13:50:48,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:50:48,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:50:48,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:50:48,583 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 13:50:48,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:50:48,649 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 13:50:48,649 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 13:50:48,650 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2024-11-20 13:50:48,652 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2024-11-20 13:50:48,652 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2024-11-20 13:50:48,652 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2024-11-20 13:50:48,654 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining) [2024-11-20 13:50:48,654 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2024-11-20 13:50:48,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (16 of 23 remaining) [2024-11-20 13:50:48,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining) [2024-11-20 13:50:48,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining) [2024-11-20 13:50:48,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining) [2024-11-20 13:50:48,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining) [2024-11-20 13:50:48,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining) [2024-11-20 13:50:48,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2024-11-20 13:50:48,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2024-11-20 13:50:48,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2024-11-20 13:50:48,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining) [2024-11-20 13:50:48,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining) [2024-11-20 13:50:48,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2024-11-20 13:50:48,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2024-11-20 13:50:48,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2024-11-20 13:50:48,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2024-11-20 13:50:48,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2024-11-20 13:50:48,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2024-11-20 13:50:48,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 13:50:48,678 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1] [2024-11-20 13:50:48,681 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 13:50:48,682 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-20 13:50:48,754 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-20 13:50:48,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 505 places, 564 transitions, 1144 flow [2024-11-20 13:50:48,978 INFO L124 PetriNetUnfolderBase]: 126/1068 cut-off events. [2024-11-20 13:50:48,978 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-20 13:50:48,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1080 conditions, 1068 events. 126/1068 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 6186 event pairs, 0 based on Foata normal form. 0/891 useless extension candidates. Maximal degree in co-relation 689. Up to 12 conditions per place. [2024-11-20 13:50:48,989 INFO L82 GeneralOperation]: Start removeDead. Operand has 505 places, 564 transitions, 1144 flow [2024-11-20 13:50:49,000 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 505 places, 564 transitions, 1144 flow [2024-11-20 13:50:49,002 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:50:49,002 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;@3c8a157a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:50:49,002 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-11-20 13:50:49,013 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:50:49,014 INFO L124 PetriNetUnfolderBase]: 4/119 cut-off events. [2024-11-20 13:50:49,014 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:50:49,014 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:50:49,014 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:50:49,014 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-20 13:50:49,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:50:49,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1276581519, now seen corresponding path program 1 times [2024-11-20 13:50:49,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:50:49,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443609888] [2024-11-20 13:50:49,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:50:49,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:50:49,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:50:49,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:50:49,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:50:49,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443609888] [2024-11-20 13:50:49,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443609888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:50:49,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:50:49,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 13:50:49,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381714787] [2024-11-20 13:50:49,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:50:49,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:50:49,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:50:49,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:50:49,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:50:49,097 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 464 out of 564 [2024-11-20 13:50:49,099 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 505 places, 564 transitions, 1144 flow. Second operand has 3 states, 3 states have (on average 465.3333333333333) internal successors, (1396), 3 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:50:49,099 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:50:49,099 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 464 of 564 [2024-11-20 13:50:49,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:50:52,275 INFO L124 PetriNetUnfolderBase]: 3251/22887 cut-off events. [2024-11-20 13:50:52,275 INFO L125 PetriNetUnfolderBase]: For 153/157 co-relation queries the response was YES. [2024-11-20 13:50:52,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27667 conditions, 22887 events. 3251/22887 cut-off events. For 153/157 co-relation queries the response was YES. Maximal size of possible extension queue 533. Compared 311246 event pairs, 2680 based on Foata normal form. 5658/26656 useless extension candidates. Maximal degree in co-relation 24734. Up to 4707 conditions per place. [2024-11-20 13:50:52,415 INFO L140 encePairwiseOnDemand]: 507/564 looper letters, 41 selfloop transitions, 2 changer transitions 0/503 dead transitions. [2024-11-20 13:50:52,415 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 499 places, 503 transitions, 1108 flow [2024-11-20 13:50:52,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:50:52,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:50:52,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1491 transitions. [2024-11-20 13:50:52,418 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8812056737588653 [2024-11-20 13:50:52,419 INFO L175 Difference]: Start difference. First operand has 505 places, 564 transitions, 1144 flow. Second operand 3 states and 1491 transitions. [2024-11-20 13:50:52,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 499 places, 503 transitions, 1108 flow [2024-11-20 13:50:52,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 499 places, 503 transitions, 1108 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:50:52,427 INFO L231 Difference]: Finished difference. Result has 500 places, 503 transitions, 1032 flow [2024-11-20 13:50:52,428 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=564, PETRI_DIFFERENCE_MINUEND_FLOW=1020, PETRI_DIFFERENCE_MINUEND_PLACES=497, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=502, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=500, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1032, PETRI_PLACES=500, PETRI_TRANSITIONS=503} [2024-11-20 13:50:52,429 INFO L277 CegarLoopForPetriNet]: 505 programPoint places, -5 predicate places. [2024-11-20 13:50:52,429 INFO L471 AbstractCegarLoop]: Abstraction has has 500 places, 503 transitions, 1032 flow [2024-11-20 13:50:52,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 465.3333333333333) internal successors, (1396), 3 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:50:52,430 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:50:52,430 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:50:52,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 13:50:52,430 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-20 13:50:52,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:50:52,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1040883535, now seen corresponding path program 1 times [2024-11-20 13:50:52,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:50:52,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116543329] [2024-11-20 13:50:52,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:50:52,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:50:52,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:50:52,507 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:50:52,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:50:52,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116543329] [2024-11-20 13:50:52,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116543329] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:50:52,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238502450] [2024-11-20 13:50:52,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:50:52,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:50:52,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:50:52,511 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:50:52,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-20 13:50:52,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:50:52,612 INFO L255 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 13:50:52,614 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:50:52,637 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:50:52,638 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 13:50:52,668 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:50:52,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1238502450] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 13:50:52,669 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 13:50:52,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-20 13:50:52,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980390447] [2024-11-20 13:50:52,670 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 13:50:52,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 13:50:52,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:50:52,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 13:50:52,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-20 13:50:52,693 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 564 [2024-11-20 13:50:52,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 500 places, 503 transitions, 1032 flow. Second operand has 10 states, 10 states have (on average 462.8) internal successors, (4628), 10 states have internal predecessors, (4628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:50:52,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:50:52,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 564 [2024-11-20 13:50:52,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:50:55,798 INFO L124 PetriNetUnfolderBase]: 3251/22894 cut-off events. [2024-11-20 13:50:55,799 INFO L125 PetriNetUnfolderBase]: For 150/154 co-relation queries the response was YES. [2024-11-20 13:50:55,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27693 conditions, 22894 events. 3251/22894 cut-off events. For 150/154 co-relation queries the response was YES. Maximal size of possible extension queue 533. Compared 311010 event pairs, 2680 based on Foata normal form. 2/21007 useless extension candidates. Maximal degree in co-relation 27597. Up to 4707 conditions per place. [2024-11-20 13:50:55,939 INFO L140 encePairwiseOnDemand]: 558/564 looper letters, 45 selfloop transitions, 9 changer transitions 0/511 dead transitions. [2024-11-20 13:50:55,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 508 places, 511 transitions, 1158 flow [2024-11-20 13:50:55,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 13:50:55,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 13:50:55,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 4205 transitions. [2024-11-20 13:50:55,946 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.828408195429472 [2024-11-20 13:50:55,947 INFO L175 Difference]: Start difference. First operand has 500 places, 503 transitions, 1032 flow. Second operand 9 states and 4205 transitions. [2024-11-20 13:50:55,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 508 places, 511 transitions, 1158 flow [2024-11-20 13:50:55,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 507 places, 511 transitions, 1156 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:50:55,958 INFO L231 Difference]: Finished difference. Result has 510 places, 509 transitions, 1080 flow [2024-11-20 13:50:55,959 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=564, PETRI_DIFFERENCE_MINUEND_FLOW=1030, PETRI_DIFFERENCE_MINUEND_PLACES=499, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=503, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=497, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1080, PETRI_PLACES=510, PETRI_TRANSITIONS=509} [2024-11-20 13:50:55,960 INFO L277 CegarLoopForPetriNet]: 505 programPoint places, 5 predicate places. [2024-11-20 13:50:55,961 INFO L471 AbstractCegarLoop]: Abstraction has has 510 places, 509 transitions, 1080 flow [2024-11-20 13:50:55,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 462.8) internal successors, (4628), 10 states have internal predecessors, (4628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:50:55,963 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:50:55,963 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:50:55,974 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-20 13:50:56,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:50:56,165 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-20 13:50:56,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:50:56,166 INFO L85 PathProgramCache]: Analyzing trace with hash -505175183, now seen corresponding path program 2 times [2024-11-20 13:50:56,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:50:56,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589058914] [2024-11-20 13:50:56,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:50:56,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:50:56,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:50:56,295 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:50:56,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:50:56,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589058914] [2024-11-20 13:50:56,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589058914] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:50:56,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011132103] [2024-11-20 13:50:56,296 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 13:50:56,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:50:56,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:50:56,300 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) [2024-11-20 13:50:56,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-20 13:50:56,403 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-20 13:50:56,403 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 13:50:56,404 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-20 13:50:56,407 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:50:56,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-20 13:50:56,469 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 19 treesize of output 18 [2024-11-20 13:50:56,508 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:50:56,508 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-11-20 13:50:56,543 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:50:56,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-11-20 13:50:56,577 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-20 13:50:56,578 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:50:56,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2011132103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:50:56,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:50:56,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-11-20 13:50:56,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694626823] [2024-11-20 13:50:56,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:50:56,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 13:50:56,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:50:56,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 13:50:56,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-20 13:50:57,189 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 371 out of 564 [2024-11-20 13:50:57,191 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 510 places, 509 transitions, 1080 flow. Second operand has 8 states, 8 states have (on average 372.125) internal successors, (2977), 8 states have internal predecessors, (2977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:50:57,191 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:50:57,192 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 371 of 564 [2024-11-20 13:50:57,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand