/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/ldv-races/race-1_2b-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 06:01:18,427 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 06:01:18,491 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-26 06:01:18,494 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 06:01:18,495 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 06:01:18,518 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 06:01:18,518 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 06:01:18,519 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 06:01:18,519 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 06:01:18,522 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 06:01:18,522 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 06:01:18,522 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 06:01:18,522 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 06:01:18,523 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 06:01:18,523 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 06:01:18,523 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 06:01:18,524 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 06:01:18,524 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 06:01:18,524 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 06:01:18,524 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 06:01:18,524 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 06:01:18,525 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 06:01:18,525 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 06:01:18,525 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 06:01:18,525 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 06:01:18,525 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 06:01:18,526 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 06:01:18,526 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 06:01:18,526 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 06:01:18,526 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 06:01:18,527 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 06:01:18,527 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 06:01:18,527 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 06:01:18,527 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 06:01:18,527 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 06:01:18,527 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 06:01:18,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 06:01:18,768 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 06:01:18,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 06:01:18,770 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 06:01:18,772 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 06:01:18,773 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_2b-join.i [2023-08-26 06:01:19,792 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 06:01:20,050 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 06:01:20,050 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2b-join.i [2023-08-26 06:01:20,067 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b06cb7602/ad54179b43b740e481592b086e218823/FLAG16d98123a [2023-08-26 06:01:20,080 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b06cb7602/ad54179b43b740e481592b086e218823 [2023-08-26 06:01:20,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 06:01:20,082 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 06:01:20,083 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 06:01:20,083 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 06:01:20,085 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 06:01:20,085 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 06:01:20" (1/1) ... [2023-08-26 06:01:20,086 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e06c31f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:20, skipping insertion in model container [2023-08-26 06:01:20,086 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 06:01:20" (1/1) ... [2023-08-26 06:01:20,125 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 06:01:20,514 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 06:01:20,522 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 06:01:20,531 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [237] [2023-08-26 06:01:20,532 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [237] [2023-08-26 06:01:20,536 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [729] [2023-08-26 06:01:20,553 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 06:01:20,655 INFO L206 MainTranslator]: Completed translation [2023-08-26 06:01:20,656 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:20 WrapperNode [2023-08-26 06:01:20,656 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 06:01:20,657 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 06:01:20,657 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 06:01:20,657 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 06:01:20,662 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:20" (1/1) ... [2023-08-26 06:01:20,683 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:20" (1/1) ... [2023-08-26 06:01:20,703 INFO L138 Inliner]: procedures = 480, calls = 28, calls flagged for inlining = 9, calls inlined = 12, statements flattened = 127 [2023-08-26 06:01:20,703 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 06:01:20,703 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 06:01:20,703 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 06:01:20,704 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 06:01:20,708 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:20" (1/1) ... [2023-08-26 06:01:20,708 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:20" (1/1) ... [2023-08-26 06:01:20,711 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:20" (1/1) ... [2023-08-26 06:01:20,711 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:20" (1/1) ... [2023-08-26 06:01:20,719 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:20" (1/1) ... [2023-08-26 06:01:20,721 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:20" (1/1) ... [2023-08-26 06:01:20,723 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:20" (1/1) ... [2023-08-26 06:01:20,725 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:20" (1/1) ... [2023-08-26 06:01:20,728 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 06:01:20,729 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 06:01:20,729 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 06:01:20,729 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 06:01:20,729 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:20" (1/1) ... [2023-08-26 06:01:20,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 06:01:20,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 06:01:20,760 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-26 06:01:20,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-26 06:01:20,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 06:01:20,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 06:01:20,792 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 06:01:20,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 06:01:20,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-26 06:01:20,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 06:01:20,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 06:01:20,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 06:01:20,793 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-26 06:01:20,793 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-26 06:01:20,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 06:01:20,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 06:01:20,794 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 06:01:20,980 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 06:01:20,982 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 06:01:21,181 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 06:01:21,190 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 06:01:21,191 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 06:01:21,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 06:01:21 BoogieIcfgContainer [2023-08-26 06:01:21,193 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 06:01:21,194 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 06:01:21,194 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 06:01:21,196 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 06:01:21,197 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 06:01:20" (1/3) ... [2023-08-26 06:01:21,197 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@89b6a01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 06:01:21, skipping insertion in model container [2023-08-26 06:01:21,197 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:20" (2/3) ... [2023-08-26 06:01:21,197 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@89b6a01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 06:01:21, skipping insertion in model container [2023-08-26 06:01:21,197 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 06:01:21" (3/3) ... [2023-08-26 06:01:21,198 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_2b-join.i [2023-08-26 06:01:21,209 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 06:01:21,209 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-08-26 06:01:21,210 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 06:01:21,257 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-26 06:01:21,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 154 places, 160 transitions, 328 flow [2023-08-26 06:01:21,340 INFO L124 PetriNetUnfolderBase]: 9/177 cut-off events. [2023-08-26 06:01:21,341 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-26 06:01:21,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 177 events. 9/177 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 273 event pairs, 0 based on Foata normal form. 0/151 useless extension candidates. Maximal degree in co-relation 93. Up to 3 conditions per place. [2023-08-26 06:01:21,345 INFO L82 GeneralOperation]: Start removeDead. Operand has 154 places, 160 transitions, 328 flow [2023-08-26 06:01:21,350 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 147 places, 150 transitions, 306 flow [2023-08-26 06:01:21,353 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 06:01:21,358 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 147 places, 150 transitions, 306 flow [2023-08-26 06:01:21,360 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 147 places, 150 transitions, 306 flow [2023-08-26 06:01:21,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 147 places, 150 transitions, 306 flow [2023-08-26 06:01:21,395 INFO L124 PetriNetUnfolderBase]: 6/168 cut-off events. [2023-08-26 06:01:21,395 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-26 06:01:21,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 168 events. 6/168 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 256 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2023-08-26 06:01:21,421 INFO L119 LiptonReduction]: Number of co-enabled transitions 1008 [2023-08-26 06:01:24,960 INFO L134 LiptonReduction]: Checked pairs total: 2230 [2023-08-26 06:01:24,960 INFO L136 LiptonReduction]: Total number of compositions: 177 [2023-08-26 06:01:24,969 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 06:01:24,976 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@23c77fb7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 06:01:24,977 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-08-26 06:01:24,977 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 06:01:24,978 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-26 06:01:24,978 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:01:24,978 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:01:24,978 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 06:01:24,978 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2023-08-26 06:01:24,981 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:01:24,982 INFO L85 PathProgramCache]: Analyzing trace with hash 580, now seen corresponding path program 1 times [2023-08-26 06:01:24,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:01:24,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456133974] [2023-08-26 06:01:24,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:01:24,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:01:25,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:01:25,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:01:25,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:01:25,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456133974] [2023-08-26 06:01:25,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456133974] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:01:25,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:01:25,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-26 06:01:25,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008963799] [2023-08-26 06:01:25,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:01:25,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 06:01:25,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:01:25,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 06:01:25,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 06:01:25,213 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 337 [2023-08-26 06:01:25,215 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 29 transitions, 64 flow. Second operand has 2 states, 2 states have (on average 146.5) internal successors, (293), 2 states have internal predecessors, (293), 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) [2023-08-26 06:01:25,216 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:01:25,216 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 337 [2023-08-26 06:01:25,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:01:25,252 INFO L124 PetriNetUnfolderBase]: 18/68 cut-off events. [2023-08-26 06:01:25,252 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-26 06:01:25,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 68 events. 18/68 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 219 event pairs, 18 based on Foata normal form. 1/54 useless extension candidates. Maximal degree in co-relation 107. Up to 52 conditions per place. [2023-08-26 06:01:25,254 INFO L140 encePairwiseOnDemand]: 327/337 looper letters, 11 selfloop transitions, 0 changer transitions 2/19 dead transitions. [2023-08-26 06:01:25,254 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 19 transitions, 70 flow [2023-08-26 06:01:25,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 06:01:25,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 06:01:25,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 315 transitions. [2023-08-26 06:01:25,268 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46735905044510384 [2023-08-26 06:01:25,269 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 315 transitions. [2023-08-26 06:01:25,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 315 transitions. [2023-08-26 06:01:25,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:01:25,271 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 315 transitions. [2023-08-26 06:01:25,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 157.5) internal successors, (315), 2 states have internal predecessors, (315), 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) [2023-08-26 06:01:25,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 337.0) internal successors, (1011), 3 states have internal predecessors, (1011), 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) [2023-08-26 06:01:25,282 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 337.0) internal successors, (1011), 3 states have internal predecessors, (1011), 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) [2023-08-26 06:01:25,283 INFO L175 Difference]: Start difference. First operand has 32 places, 29 transitions, 64 flow. Second operand 2 states and 315 transitions. [2023-08-26 06:01:25,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 19 transitions, 70 flow [2023-08-26 06:01:25,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 19 transitions, 66 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 06:01:25,285 INFO L231 Difference]: Finished difference. Result has 21 places, 17 transitions, 35 flow [2023-08-26 06:01:25,286 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=35, PETRI_PLACES=21, PETRI_TRANSITIONS=17} [2023-08-26 06:01:25,288 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -11 predicate places. [2023-08-26 06:01:25,288 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 17 transitions, 35 flow [2023-08-26 06:01:25,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 146.5) internal successors, (293), 2 states have internal predecessors, (293), 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) [2023-08-26 06:01:25,289 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:01:25,289 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-26 06:01:25,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 06:01:25,289 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2023-08-26 06:01:25,289 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:01:25,289 INFO L85 PathProgramCache]: Analyzing trace with hash 557660584, now seen corresponding path program 1 times [2023-08-26 06:01:25,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:01:25,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145263273] [2023-08-26 06:01:25,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:01:25,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:01:25,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:01:25,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:01:25,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:01:25,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145263273] [2023-08-26 06:01:25,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145263273] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:01:25,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:01:25,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 06:01:25,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354568320] [2023-08-26 06:01:25,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:01:25,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 06:01:25,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:01:25,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 06:01:25,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 06:01:25,401 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 337 [2023-08-26 06:01:25,401 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 17 transitions, 35 flow. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 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) [2023-08-26 06:01:25,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:01:25,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 337 [2023-08-26 06:01:25,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:01:25,445 INFO L124 PetriNetUnfolderBase]: 51/120 cut-off events. [2023-08-26 06:01:25,445 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:01:25,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244 conditions, 120 events. 51/120 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 404 event pairs, 30 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 241. Up to 100 conditions per place. [2023-08-26 06:01:25,446 INFO L140 encePairwiseOnDemand]: 332/337 looper letters, 22 selfloop transitions, 4 changer transitions 3/29 dead transitions. [2023-08-26 06:01:25,446 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 29 transitions, 117 flow [2023-08-26 06:01:25,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 06:01:25,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 06:01:25,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 381 transitions. [2023-08-26 06:01:25,449 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3768545994065282 [2023-08-26 06:01:25,449 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 381 transitions. [2023-08-26 06:01:25,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 381 transitions. [2023-08-26 06:01:25,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:01:25,450 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 381 transitions. [2023-08-26 06:01:25,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 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) [2023-08-26 06:01:25,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 337.0) internal successors, (1348), 4 states have internal predecessors, (1348), 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) [2023-08-26 06:01:25,454 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 337.0) internal successors, (1348), 4 states have internal predecessors, (1348), 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) [2023-08-26 06:01:25,454 INFO L175 Difference]: Start difference. First operand has 21 places, 17 transitions, 35 flow. Second operand 3 states and 381 transitions. [2023-08-26 06:01:25,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 29 transitions, 117 flow [2023-08-26 06:01:25,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 29 transitions, 117 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 06:01:25,455 INFO L231 Difference]: Finished difference. Result has 23 places, 20 transitions, 61 flow [2023-08-26 06:01:25,455 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=35, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=61, PETRI_PLACES=23, PETRI_TRANSITIONS=20} [2023-08-26 06:01:25,456 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -9 predicate places. [2023-08-26 06:01:25,456 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 20 transitions, 61 flow [2023-08-26 06:01:25,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 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) [2023-08-26 06:01:25,456 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:01:25,457 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-26 06:01:25,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 06:01:25,459 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2023-08-26 06:01:25,460 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:01:25,460 INFO L85 PathProgramCache]: Analyzing trace with hash 557657479, now seen corresponding path program 1 times [2023-08-26 06:01:25,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:01:25,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032861391] [2023-08-26 06:01:25,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:01:25,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:01:25,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:01:25,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:01:25,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:01:25,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032861391] [2023-08-26 06:01:25,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032861391] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:01:25,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:01:25,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 06:01:25,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694962598] [2023-08-26 06:01:25,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:01:25,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 06:01:25,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:01:25,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 06:01:25,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 06:01:25,517 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 337 [2023-08-26 06:01:25,517 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 20 transitions, 61 flow. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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) [2023-08-26 06:01:25,517 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:01:25,517 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 337 [2023-08-26 06:01:25,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:01:25,549 INFO L124 PetriNetUnfolderBase]: 47/113 cut-off events. [2023-08-26 06:01:25,550 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2023-08-26 06:01:25,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 113 events. 47/113 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 358 event pairs, 32 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 292. Up to 107 conditions per place. [2023-08-26 06:01:25,550 INFO L140 encePairwiseOnDemand]: 333/337 looper letters, 21 selfloop transitions, 4 changer transitions 0/25 dead transitions. [2023-08-26 06:01:25,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 25 transitions, 128 flow [2023-08-26 06:01:25,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 06:01:25,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 06:01:25,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 371 transitions. [2023-08-26 06:01:25,552 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3669634025717112 [2023-08-26 06:01:25,552 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 371 transitions. [2023-08-26 06:01:25,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 371 transitions. [2023-08-26 06:01:25,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:01:25,553 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 371 transitions. [2023-08-26 06:01:25,553 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 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) [2023-08-26 06:01:25,555 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 337.0) internal successors, (1348), 4 states have internal predecessors, (1348), 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) [2023-08-26 06:01:25,555 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 337.0) internal successors, (1348), 4 states have internal predecessors, (1348), 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) [2023-08-26 06:01:25,555 INFO L175 Difference]: Start difference. First operand has 23 places, 20 transitions, 61 flow. Second operand 3 states and 371 transitions. [2023-08-26 06:01:25,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 25 transitions, 128 flow [2023-08-26 06:01:25,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 25 transitions, 123 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 06:01:25,557 INFO L231 Difference]: Finished difference. Result has 25 places, 22 transitions, 81 flow [2023-08-26 06:01:25,557 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=81, PETRI_PLACES=25, PETRI_TRANSITIONS=22} [2023-08-26 06:01:25,557 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -7 predicate places. [2023-08-26 06:01:25,557 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 22 transitions, 81 flow [2023-08-26 06:01:25,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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) [2023-08-26 06:01:25,558 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:01:25,558 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:01:25,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 06:01:25,558 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2023-08-26 06:01:25,558 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:01:25,558 INFO L85 PathProgramCache]: Analyzing trace with hash -956178137, now seen corresponding path program 1 times [2023-08-26 06:01:25,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:01:25,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181305645] [2023-08-26 06:01:25,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:01:25,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:01:25,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 06:01:25,575 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 06:01:25,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 06:01:25,599 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 06:01:25,599 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 06:01:25,599 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (15 of 16 remaining) [2023-08-26 06:01:25,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (14 of 16 remaining) [2023-08-26 06:01:25,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 16 remaining) [2023-08-26 06:01:25,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 16 remaining) [2023-08-26 06:01:25,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (11 of 16 remaining) [2023-08-26 06:01:25,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (10 of 16 remaining) [2023-08-26 06:01:25,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (9 of 16 remaining) [2023-08-26 06:01:25,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (8 of 16 remaining) [2023-08-26 06:01:25,601 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (7 of 16 remaining) [2023-08-26 06:01:25,602 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONASSERT (6 of 16 remaining) [2023-08-26 06:01:25,602 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONASSERT (5 of 16 remaining) [2023-08-26 06:01:25,602 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (4 of 16 remaining) [2023-08-26 06:01:25,602 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (3 of 16 remaining) [2023-08-26 06:01:25,602 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (2 of 16 remaining) [2023-08-26 06:01:25,602 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONASSERT (1 of 16 remaining) [2023-08-26 06:01:25,602 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 16 remaining) [2023-08-26 06:01:25,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 06:01:25,603 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-26 06:01:25,606 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 06:01:25,606 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 06:01:25,621 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 06:01:25 BasicIcfg [2023-08-26 06:01:25,621 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 06:01:25,622 INFO L158 Benchmark]: Toolchain (without parser) took 5539.47ms. Allocated memory was 346.0MB in the beginning and 448.8MB in the end (delta: 102.8MB). Free memory was 319.7MB in the beginning and 338.0MB in the end (delta: -18.3MB). Peak memory consumption was 87.4MB. Max. memory is 16.0GB. [2023-08-26 06:01:25,622 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 346.0MB. Free memory was 323.4MB in the beginning and 323.3MB in the end (delta: 80.6kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 06:01:25,622 INFO L158 Benchmark]: CACSL2BoogieTranslator took 573.19ms. Allocated memory is still 346.0MB. Free memory was 319.6MB in the beginning and 311.2MB in the end (delta: 8.4MB). Peak memory consumption was 57.1MB. Max. memory is 16.0GB. [2023-08-26 06:01:25,622 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.29ms. Allocated memory is still 346.0MB. Free memory was 311.2MB in the beginning and 307.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-26 06:01:25,623 INFO L158 Benchmark]: Boogie Preprocessor took 25.03ms. Allocated memory is still 346.0MB. Free memory was 307.9MB in the beginning and 305.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 06:01:25,623 INFO L158 Benchmark]: RCFGBuilder took 463.71ms. Allocated memory is still 346.0MB. Free memory was 305.0MB in the beginning and 282.7MB in the end (delta: 22.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2023-08-26 06:01:25,623 INFO L158 Benchmark]: TraceAbstraction took 4427.24ms. Allocated memory was 346.0MB in the beginning and 448.8MB in the end (delta: 102.8MB). Free memory was 281.9MB in the beginning and 338.0MB in the end (delta: -56.1MB). Peak memory consumption was 47.2MB. Max. memory is 16.0GB. [2023-08-26 06:01:25,624 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 346.0MB. Free memory was 323.4MB in the beginning and 323.3MB in the end (delta: 80.6kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 573.19ms. Allocated memory is still 346.0MB. Free memory was 319.6MB in the beginning and 311.2MB in the end (delta: 8.4MB). Peak memory consumption was 57.1MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 46.29ms. Allocated memory is still 346.0MB. Free memory was 311.2MB in the beginning and 307.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 25.03ms. Allocated memory is still 346.0MB. Free memory was 307.9MB in the beginning and 305.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 463.71ms. Allocated memory is still 346.0MB. Free memory was 305.0MB in the beginning and 282.7MB in the end (delta: 22.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * TraceAbstraction took 4427.24ms. Allocated memory was 346.0MB in the beginning and 448.8MB in the end (delta: 102.8MB). Free memory was 281.9MB in the beginning and 338.0MB in the end (delta: -56.1MB). Peak memory consumption was 47.2MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 237]: Unsoundness Warning unspecified type, defaulting to int C: short [237] - GenericResultAtLocation [Line: 237]: Unsoundness Warning unspecified type, defaulting to int C: short [237] - GenericResultAtLocation [Line: 729]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [729] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.6s, 147 PlacesBefore, 32 PlacesAfterwards, 150 TransitionsBefore, 29 TransitionsAfterwards, 1008 CoEnabledTransitionPairs, 8 FixpointIterations, 116 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 5 ConcurrentYvCompositions, 6 ChoiceCompositions, 177 TotalNumberOfCompositions, 2230 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1091, independent: 897, independent conditional: 0, independent unconditional: 897, dependent: 194, dependent conditional: 0, dependent unconditional: 194, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 539, independent: 513, independent conditional: 0, independent unconditional: 513, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1091, independent: 384, independent conditional: 0, independent unconditional: 384, dependent: 168, dependent conditional: 0, dependent unconditional: 168, unknown: 539, unknown conditional: 0, unknown unconditional: 539] , Statistics on independence cache: Total cache size (in pairs): 27, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 1699]: Data race detected Data race detected The following path leads to a data race: [L1694] 0 pthread_t t1; [L1695] 0 pthread_mutex_t mutex; [L1696] 0 int pdev; [L1726] CALL 0 module_init() [L1705] 0 pdev = 1 [L1706] EXPR 0 pdev==1 [L1706] CALL 0 ldv_assert(pdev==1) [L1693] COND FALSE 0 !(!expression) [L1706] RET 0 ldv_assert(pdev==1) [L1707] COND TRUE 0 __VERIFIER_nondet_int() [L1708] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={4:0}, pdev=1, pthread_create(&t1, ((void *)0), thread1, ((void *)0))=-1, t1={3:0}] [L1699] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=6, t1={3:0}] [L1709] 0 pdev = 2 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=2, t1={3:0}] [L1709] 0 pdev = 2 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev = 2=1153, pdev = 6=1155, pdev=2, t1={3:0}] [L1699] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev = 6=1155, pdev=2, t1={3:0}] Now there is a data race on ~pdev~0 between C: pdev = 2 [1709] and C: pdev = 6 [1699] - UnprovableResult [Line: 1705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1691]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1713]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1691]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1691]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1722]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1691]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1708]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 165 locations, 16 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 83 IncrementalHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 13 mSDtfsCounter, 83 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=81occurred in iteration=3, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-26 06:01:25,656 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...