/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 -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/pthread/bigshot_s.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-24 18:10:43,249 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-24 18:10:43,313 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 [2023-08-24 18:10:43,317 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-24 18:10:43,318 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-24 18:10:43,339 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-24 18:10:43,340 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-24 18:10:43,340 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-24 18:10:43,341 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-24 18:10:43,341 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-24 18:10:43,341 INFO L153 SettingsManager]: * Use SBE=true [2023-08-24 18:10:43,342 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-24 18:10:43,342 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-24 18:10:43,342 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-24 18:10:43,342 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-24 18:10:43,343 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-24 18:10:43,343 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-24 18:10:43,343 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-24 18:10:43,344 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-24 18:10:43,344 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-24 18:10:43,344 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-24 18:10:43,347 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-24 18:10:43,347 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-24 18:10:43,348 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-24 18:10:43,351 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-24 18:10:43,351 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-24 18:10:43,352 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-24 18:10:43,352 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 18:10:43,352 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-24 18:10:43,352 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-24 18:10:43,353 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-24 18:10:43,353 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-24 18:10:43,353 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-24 18:10:43,353 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-24 18:10:43,353 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-24 18:10:43,354 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-24 18:10:43,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-24 18:10:43,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-24 18:10:43,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-24 18:10:43,659 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-24 18:10:43,660 INFO L274 PluginConnector]: CDTParser initialized [2023-08-24 18:10:43,661 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/bigshot_s.i [2023-08-24 18:10:44,870 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-24 18:10:45,221 INFO L384 CDTParser]: Found 1 translation units. [2023-08-24 18:10:45,222 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/bigshot_s.i [2023-08-24 18:10:45,241 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6bc9bd136/e0d9f6875a3743b0a9c8df7ec70df825/FLAGa10591f01 [2023-08-24 18:10:45,256 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6bc9bd136/e0d9f6875a3743b0a9c8df7ec70df825 [2023-08-24 18:10:45,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-24 18:10:45,261 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-24 18:10:45,264 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-24 18:10:45,264 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-24 18:10:45,266 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-24 18:10:45,268 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 06:10:45" (1/1) ... [2023-08-24 18:10:45,268 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a59fc26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:10:45, skipping insertion in model container [2023-08-24 18:10:45,269 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 06:10:45" (1/1) ... [2023-08-24 18:10:45,318 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-24 18:10:45,680 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 18:10:45,689 INFO L201 MainTranslator]: Completed pre-run [2023-08-24 18:10:45,715 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [274] [2023-08-24 18:10:45,720 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [274] [2023-08-24 18:10:45,757 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 18:10:45,818 INFO L206 MainTranslator]: Completed translation [2023-08-24 18:10:45,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:10:45 WrapperNode [2023-08-24 18:10:45,818 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-24 18:10:45,819 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-24 18:10:45,819 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-24 18:10:45,819 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-24 18:10:45,824 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:10:45" (1/1) ... [2023-08-24 18:10:45,840 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:10:45" (1/1) ... [2023-08-24 18:10:45,861 INFO L138 Inliner]: procedures = 323, calls = 34, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 98 [2023-08-24 18:10:45,862 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-24 18:10:45,862 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-24 18:10:45,863 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-24 18:10:45,863 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-24 18:10:45,870 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:10:45" (1/1) ... [2023-08-24 18:10:45,870 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:10:45" (1/1) ... [2023-08-24 18:10:45,874 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:10:45" (1/1) ... [2023-08-24 18:10:45,874 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:10:45" (1/1) ... [2023-08-24 18:10:45,881 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:10:45" (1/1) ... [2023-08-24 18:10:45,884 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:10:45" (1/1) ... [2023-08-24 18:10:45,885 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:10:45" (1/1) ... [2023-08-24 18:10:45,886 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:10:45" (1/1) ... [2023-08-24 18:10:45,889 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-24 18:10:45,890 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-24 18:10:45,890 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-24 18:10:45,890 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-24 18:10:45,891 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:10:45" (1/1) ... [2023-08-24 18:10:45,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 18:10:45,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-24 18:10:45,937 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) [2023-08-24 18:10:45,958 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 [2023-08-24 18:10:45,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-24 18:10:45,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-24 18:10:45,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-08-24 18:10:45,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-24 18:10:45,975 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-24 18:10:45,975 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-24 18:10:45,975 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-24 18:10:45,976 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-24 18:10:45,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-24 18:10:45,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-24 18:10:45,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-24 18:10:45,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-24 18:10:45,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-24 18:10:45,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-24 18:10:45,977 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-24 18:10:46,085 INFO L236 CfgBuilder]: Building ICFG [2023-08-24 18:10:46,086 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-24 18:10:46,313 INFO L277 CfgBuilder]: Performing block encoding [2023-08-24 18:10:46,319 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-24 18:10:46,319 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-24 18:10:46,321 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 06:10:46 BoogieIcfgContainer [2023-08-24 18:10:46,321 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-24 18:10:46,322 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-24 18:10:46,322 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-24 18:10:46,329 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-24 18:10:46,329 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.08 06:10:45" (1/3) ... [2023-08-24 18:10:46,330 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@141d4d37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 06:10:46, skipping insertion in model container [2023-08-24 18:10:46,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:10:45" (2/3) ... [2023-08-24 18:10:46,330 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@141d4d37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 06:10:46, skipping insertion in model container [2023-08-24 18:10:46,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 06:10:46" (3/3) ... [2023-08-24 18:10:46,331 INFO L112 eAbstractionObserver]: Analyzing ICFG bigshot_s.i [2023-08-24 18:10:46,345 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-24 18:10:46,345 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-08-24 18:10:46,346 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-24 18:10:46,406 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-24 18:10:46,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 123 transitions, 262 flow [2023-08-24 18:10:46,475 INFO L124 PetriNetUnfolderBase]: 6/121 cut-off events. [2023-08-24 18:10:46,475 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 18:10:46,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 121 events. 6/121 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 114 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 78. Up to 2 conditions per place. [2023-08-24 18:10:46,479 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 123 transitions, 262 flow [2023-08-24 18:10:46,483 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 110 places, 107 transitions, 226 flow [2023-08-24 18:10:46,485 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 18:10:46,492 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 110 places, 107 transitions, 226 flow [2023-08-24 18:10:46,494 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 110 places, 107 transitions, 226 flow [2023-08-24 18:10:46,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 107 transitions, 226 flow [2023-08-24 18:10:46,525 INFO L124 PetriNetUnfolderBase]: 4/107 cut-off events. [2023-08-24 18:10:46,526 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 18:10:46,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 107 events. 4/107 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 94 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2023-08-24 18:10:46,527 INFO L119 LiptonReduction]: Number of co-enabled transitions 630 [2023-08-24 18:10:50,337 INFO L134 LiptonReduction]: Checked pairs total: 647 [2023-08-24 18:10:50,338 INFO L136 LiptonReduction]: Total number of compositions: 117 [2023-08-24 18:10:50,350 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-24 18:10:50,355 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;@45c77737, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 18:10:50,355 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2023-08-24 18:10:50,357 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 18:10:50,357 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-24 18:10:50,357 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 18:10:50,357 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:10:50,358 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-24 18:10:50,358 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-24 18:10:50,362 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:10:50,363 INFO L85 PathProgramCache]: Analyzing trace with hash 449123, now seen corresponding path program 1 times [2023-08-24 18:10:50,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:10:50,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629230218] [2023-08-24 18:10:50,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:10:50,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:10:50,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:10:50,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:10:50,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:10:50,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629230218] [2023-08-24 18:10:50,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629230218] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:10:50,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:10:50,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-24 18:10:50,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465723913] [2023-08-24 18:10:50,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:10:50,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-24 18:10:50,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:10:50,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-24 18:10:50,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-24 18:10:50,534 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 240 [2023-08-24 18:10:50,536 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 22 transitions, 56 flow. Second operand has 2 states, 2 states have (on average 116.5) internal successors, (233), 2 states have internal predecessors, (233), 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) [2023-08-24 18:10:50,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:10:50,536 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 240 [2023-08-24 18:10:50,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:10:50,577 INFO L124 PetriNetUnfolderBase]: 7/22 cut-off events. [2023-08-24 18:10:50,577 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 18:10:50,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 22 events. 7/22 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 17 event pairs, 3 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 33. Up to 23 conditions per place. [2023-08-24 18:10:50,578 INFO L140 encePairwiseOnDemand]: 232/240 looper letters, 14 selfloop transitions, 0 changer transitions 0/14 dead transitions. [2023-08-24 18:10:50,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 14 transitions, 68 flow [2023-08-24 18:10:50,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-24 18:10:50,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-24 18:10:50,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 252 transitions. [2023-08-24 18:10:50,596 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.525 [2023-08-24 18:10:50,596 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 252 transitions. [2023-08-24 18:10:50,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 252 transitions. [2023-08-24 18:10:50,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:10:50,602 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 252 transitions. [2023-08-24 18:10:50,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 126.0) internal successors, (252), 2 states have internal predecessors, (252), 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) [2023-08-24 18:10:50,611 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 240.0) internal successors, (720), 3 states have internal predecessors, (720), 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) [2023-08-24 18:10:50,612 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 240.0) internal successors, (720), 3 states have internal predecessors, (720), 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) [2023-08-24 18:10:50,613 INFO L175 Difference]: Start difference. First operand has 27 places, 22 transitions, 56 flow. Second operand 2 states and 252 transitions. [2023-08-24 18:10:50,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 14 transitions, 68 flow [2023-08-24 18:10:50,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 14 transitions, 60 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-24 18:10:50,617 INFO L231 Difference]: Finished difference. Result has 16 places, 14 transitions, 32 flow [2023-08-24 18:10:50,619 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=32, PETRI_PLACES=16, PETRI_TRANSITIONS=14} [2023-08-24 18:10:50,622 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -11 predicate places. [2023-08-24 18:10:50,622 INFO L495 AbstractCegarLoop]: Abstraction has has 16 places, 14 transitions, 32 flow [2023-08-24 18:10:50,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 116.5) internal successors, (233), 2 states have internal predecessors, (233), 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) [2023-08-24 18:10:50,622 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:10:50,623 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:10:50,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-24 18:10:50,623 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-24 18:10:50,625 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:10:50,625 INFO L85 PathProgramCache]: Analyzing trace with hash 560929793, now seen corresponding path program 1 times [2023-08-24 18:10:50,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:10:50,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145020153] [2023-08-24 18:10:50,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:10:50,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:10:50,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:10:50,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:10:50,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:10:50,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145020153] [2023-08-24 18:10:50,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145020153] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:10:50,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:10:50,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-24 18:10:50,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628107953] [2023-08-24 18:10:50,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:10:50,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:10:50,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:10:50,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:10:50,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:10:50,802 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 240 [2023-08-24 18:10:50,802 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 14 transitions, 32 flow. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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) [2023-08-24 18:10:50,802 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:10:50,802 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 240 [2023-08-24 18:10:50,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:10:50,827 INFO L124 PetriNetUnfolderBase]: 5/20 cut-off events. [2023-08-24 18:10:50,827 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 18:10:50,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 20 events. 5/20 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 11 event pairs, 2 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 42. Up to 17 conditions per place. [2023-08-24 18:10:50,828 INFO L140 encePairwiseOnDemand]: 238/240 looper letters, 13 selfloop transitions, 1 changer transitions 0/14 dead transitions. [2023-08-24 18:10:50,828 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 14 transitions, 60 flow [2023-08-24 18:10:50,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:10:50,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:10:50,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 330 transitions. [2023-08-24 18:10:50,830 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4583333333333333 [2023-08-24 18:10:50,830 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 330 transitions. [2023-08-24 18:10:50,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 330 transitions. [2023-08-24 18:10:50,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:10:50,831 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 330 transitions. [2023-08-24 18:10:50,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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) [2023-08-24 18:10:50,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 240.0) internal successors, (960), 4 states have internal predecessors, (960), 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) [2023-08-24 18:10:50,835 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 240.0) internal successors, (960), 4 states have internal predecessors, (960), 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) [2023-08-24 18:10:50,835 INFO L175 Difference]: Start difference. First operand has 16 places, 14 transitions, 32 flow. Second operand 3 states and 330 transitions. [2023-08-24 18:10:50,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 14 transitions, 60 flow [2023-08-24 18:10:50,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 14 transitions, 60 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-24 18:10:50,836 INFO L231 Difference]: Finished difference. Result has 18 places, 13 transitions, 32 flow [2023-08-24 18:10:50,836 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=32, PETRI_PLACES=18, PETRI_TRANSITIONS=13} [2023-08-24 18:10:50,837 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -9 predicate places. [2023-08-24 18:10:50,837 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 13 transitions, 32 flow [2023-08-24 18:10:50,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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) [2023-08-24 18:10:50,837 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:10:50,837 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:10:50,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-24 18:10:50,838 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-24 18:10:50,838 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:10:50,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1282678527, now seen corresponding path program 1 times [2023-08-24 18:10:50,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:10:50,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081272608] [2023-08-24 18:10:50,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:10:50,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:10:50,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:10:51,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:10:51,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:10:51,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081272608] [2023-08-24 18:10:51,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081272608] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:10:51,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:10:51,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-24 18:10:51,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267507299] [2023-08-24 18:10:51,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:10:51,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-24 18:10:51,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:10:51,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-24 18:10:51,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-08-24 18:10:51,421 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 240 [2023-08-24 18:10:51,422 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 13 transitions, 32 flow. Second operand has 8 states, 8 states have (on average 67.5) internal successors, (540), 8 states have internal predecessors, (540), 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) [2023-08-24 18:10:51,422 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:10:51,422 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 240 [2023-08-24 18:10:51,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:10:51,549 INFO L124 PetriNetUnfolderBase]: 9/28 cut-off events. [2023-08-24 18:10:51,550 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-24 18:10:51,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 28 events. 9/28 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 24 event pairs, 1 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 60. Up to 13 conditions per place. [2023-08-24 18:10:51,550 INFO L140 encePairwiseOnDemand]: 236/240 looper letters, 14 selfloop transitions, 5 changer transitions 0/19 dead transitions. [2023-08-24 18:10:51,550 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 19 transitions, 82 flow [2023-08-24 18:10:51,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-24 18:10:51,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-24 18:10:51,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 350 transitions. [2023-08-24 18:10:51,552 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2916666666666667 [2023-08-24 18:10:51,553 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 350 transitions. [2023-08-24 18:10:51,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 350 transitions. [2023-08-24 18:10:51,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:10:51,553 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 350 transitions. [2023-08-24 18:10:51,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 70.0) internal successors, (350), 5 states have internal predecessors, (350), 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) [2023-08-24 18:10:51,557 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 240.0) internal successors, (1440), 6 states have internal predecessors, (1440), 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) [2023-08-24 18:10:51,557 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 240.0) internal successors, (1440), 6 states have internal predecessors, (1440), 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) [2023-08-24 18:10:51,557 INFO L175 Difference]: Start difference. First operand has 18 places, 13 transitions, 32 flow. Second operand 5 states and 350 transitions. [2023-08-24 18:10:51,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 19 transitions, 82 flow [2023-08-24 18:10:51,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 19 transitions, 81 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-24 18:10:51,558 INFO L231 Difference]: Finished difference. Result has 23 places, 16 transitions, 58 flow [2023-08-24 18:10:51,559 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=31, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=58, PETRI_PLACES=23, PETRI_TRANSITIONS=16} [2023-08-24 18:10:51,559 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -4 predicate places. [2023-08-24 18:10:51,559 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 16 transitions, 58 flow [2023-08-24 18:10:51,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 67.5) internal successors, (540), 8 states have internal predecessors, (540), 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) [2023-08-24 18:10:51,560 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:10:51,560 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:10:51,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-24 18:10:51,561 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-24 18:10:51,561 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:10:51,561 INFO L85 PathProgramCache]: Analyzing trace with hash -2093487210, now seen corresponding path program 1 times [2023-08-24 18:10:51,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:10:51,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073795607] [2023-08-24 18:10:51,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:10:51,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:10:51,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:10:51,983 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:10:51,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:10:51,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073795607] [2023-08-24 18:10:51,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073795607] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-24 18:10:51,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [583075589] [2023-08-24 18:10:51,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:10:51,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-24 18:10:51,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-24 18:10:51,997 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) [2023-08-24 18:10:52,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-24 18:10:52,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:10:52,159 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 39 conjunts are in the unsatisfiable core [2023-08-24 18:10:52,165 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-24 18:10:52,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-24 18:10:52,231 INFO L351 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 14 treesize of output 16 [2023-08-24 18:10:52,252 INFO L322 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2023-08-24 18:10:52,253 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 20 treesize of output 22 [2023-08-24 18:10:52,307 INFO L351 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 14 treesize of output 16 [2023-08-24 18:10:52,387 INFO L322 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-08-24 18:10:52,388 INFO L351 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 1 case distinctions, treesize of input 19 treesize of output 18 [2023-08-24 18:10:52,426 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-24 18:10:52,427 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 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 [2023-08-24 18:10:52,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:10:52,454 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-24 18:10:52,617 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:10:52,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [583075589] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-24 18:10:52,617 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-24 18:10:52,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 5] total 17 [2023-08-24 18:10:52,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808854766] [2023-08-24 18:10:52,618 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-24 18:10:52,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-08-24 18:10:52,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:10:52,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-08-24 18:10:52,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2023-08-24 18:10:52,620 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 240 [2023-08-24 18:10:52,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 16 transitions, 58 flow. Second operand has 18 states, 18 states have (on average 63.05555555555556) internal successors, (1135), 18 states have internal predecessors, (1135), 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) [2023-08-24 18:10:52,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:10:52,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 240 [2023-08-24 18:10:52,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:10:53,003 INFO L124 PetriNetUnfolderBase]: 14/45 cut-off events. [2023-08-24 18:10:53,003 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-08-24 18:10:53,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 45 events. 14/45 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 68 event pairs, 1 based on Foata normal form. 2/47 useless extension candidates. Maximal degree in co-relation 129. Up to 14 conditions per place. [2023-08-24 18:10:53,004 INFO L140 encePairwiseOnDemand]: 235/240 looper letters, 17 selfloop transitions, 8 changer transitions 5/30 dead transitions. [2023-08-24 18:10:53,004 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 30 transitions, 163 flow [2023-08-24 18:10:53,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-24 18:10:53,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-24 18:10:53,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 582 transitions. [2023-08-24 18:10:53,007 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.26944444444444443 [2023-08-24 18:10:53,007 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 582 transitions. [2023-08-24 18:10:53,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 582 transitions. [2023-08-24 18:10:53,007 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:10:53,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 582 transitions. [2023-08-24 18:10:53,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 64.66666666666667) internal successors, (582), 9 states have internal predecessors, (582), 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) [2023-08-24 18:10:53,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 240.0) internal successors, (2400), 10 states have internal predecessors, (2400), 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) [2023-08-24 18:10:53,014 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 240.0) internal successors, (2400), 10 states have internal predecessors, (2400), 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) [2023-08-24 18:10:53,014 INFO L175 Difference]: Start difference. First operand has 23 places, 16 transitions, 58 flow. Second operand 9 states and 582 transitions. [2023-08-24 18:10:53,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 30 transitions, 163 flow [2023-08-24 18:10:53,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 30 transitions, 157 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-24 18:10:53,015 INFO L231 Difference]: Finished difference. Result has 34 places, 19 transitions, 98 flow [2023-08-24 18:10:53,016 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=98, PETRI_PLACES=34, PETRI_TRANSITIONS=19} [2023-08-24 18:10:53,016 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 7 predicate places. [2023-08-24 18:10:53,016 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 19 transitions, 98 flow [2023-08-24 18:10:53,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 63.05555555555556) internal successors, (1135), 18 states have internal predecessors, (1135), 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) [2023-08-24 18:10:53,017 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:10:53,017 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:10:53,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-24 18:10:53,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-24 18:10:53,225 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-24 18:10:53,226 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:10:53,226 INFO L85 PathProgramCache]: Analyzing trace with hash -790961669, now seen corresponding path program 2 times [2023-08-24 18:10:53,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:10:53,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395293738] [2023-08-24 18:10:53,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:10:53,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:10:53,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:10:53,780 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:10:53,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:10:53,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395293738] [2023-08-24 18:10:53,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395293738] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-24 18:10:53,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177156518] [2023-08-24 18:10:53,784 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-24 18:10:53,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-24 18:10:53,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-24 18:10:53,786 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) [2023-08-24 18:10:53,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-24 18:10:53,933 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-24 18:10:53,933 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-24 18:10:53,935 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 45 conjunts are in the unsatisfiable core [2023-08-24 18:10:53,938 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-24 18:10:53,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-24 18:10:53,954 INFO L351 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 14 treesize of output 16 [2023-08-24 18:10:53,972 INFO L322 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2023-08-24 18:10:53,972 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 20 treesize of output 22 [2023-08-24 18:10:54,029 INFO L351 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 14 treesize of output 16 [2023-08-24 18:10:54,117 INFO L322 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-08-24 18:10:54,118 INFO L351 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 1 case distinctions, treesize of input 19 treesize of output 18 [2023-08-24 18:10:54,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-24 18:10:54,168 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-24 18:10:54,168 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 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 [2023-08-24 18:10:54,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-24 18:10:54,230 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-24 18:10:54,230 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 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 [2023-08-24 18:10:54,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-24 18:10:54,284 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-24 18:10:54,284 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 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 [2023-08-24 18:10:54,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-24 18:10:54,341 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-24 18:10:54,341 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 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 [2023-08-24 18:10:54,371 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:10:54,371 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-24 18:11:07,064 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_189 Int) (v_ArrVal_196 Int) (v_ArrVal_193 Int) (v_ArrVal_191 Int) (|v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset15#1_46| Int) (|v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset15#1_45| Int) (|v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset15#1_47| Int)) (or (= 66 (select (select (store |c_#memory_int| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.base| (store (store (store (store (select |c_#memory_int| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.base|) (+ |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.offset| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset15#1|) v_ArrVal_189) (+ |v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset15#1_47| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.offset|) v_ArrVal_191) (+ |v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset15#1_46| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.offset|) v_ArrVal_193) (+ |v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset15#1_45| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.offset|) v_ArrVal_196)) c_~v~0.base) c_~v~0.offset)) (< |v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset15#1_45| (+ |v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset15#1_46| 1)) (< |v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset15#1_46| (+ |v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset15#1_47| 1)) (< |v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset15#1_47| (+ |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset15#1| 1)))) is different from false [2023-08-24 18:11:18,353 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 3 refuted. 1 times theorem prover too weak. 0 trivial. 4 not checked. [2023-08-24 18:11:18,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [177156518] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-24 18:11:18,354 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-24 18:11:18,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 27 [2023-08-24 18:11:18,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528970651] [2023-08-24 18:11:18,354 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-24 18:11:18,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-08-24 18:11:18,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:11:18,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-08-24 18:11:18,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=583, Unknown=13, NotChecked=50, Total=756 [2023-08-24 18:11:18,358 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 240 [2023-08-24 18:11:18,360 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 19 transitions, 98 flow. Second operand has 28 states, 28 states have (on average 62.642857142857146) internal successors, (1754), 28 states have internal predecessors, (1754), 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) [2023-08-24 18:11:18,360 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:11:18,360 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 240 [2023-08-24 18:11:18,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:11:28,192 WARN L234 SmtUtils]: Spent 5.27s on a formula simplification. DAG size of input: 74 DAG size of output: 72 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-24 18:11:49,023 WARN L234 SmtUtils]: Spent 16.69s on a formula simplification. DAG size of input: 73 DAG size of output: 71 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-24 18:12:06,076 WARN L234 SmtUtils]: Spent 13.98s on a formula simplification. DAG size of input: 73 DAG size of output: 70 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-24 18:12:12,770 INFO L124 PetriNetUnfolderBase]: 12/43 cut-off events. [2023-08-24 18:12:12,770 INFO L125 PetriNetUnfolderBase]: For 55/55 co-relation queries the response was YES. [2023-08-24 18:12:12,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 43 events. 12/43 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 57 event pairs, 1 based on Foata normal form. 4/47 useless extension candidates. Maximal degree in co-relation 156. Up to 15 conditions per place. [2023-08-24 18:12:12,771 INFO L140 encePairwiseOnDemand]: 234/240 looper letters, 0 selfloop transitions, 0 changer transitions 31/31 dead transitions. [2023-08-24 18:12:12,771 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 31 transitions, 211 flow [2023-08-24 18:12:12,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-24 18:12:12,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-24 18:12:12,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 827 transitions. [2023-08-24 18:12:12,774 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.26506410256410257 [2023-08-24 18:12:12,774 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 827 transitions. [2023-08-24 18:12:12,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 827 transitions. [2023-08-24 18:12:12,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:12:12,775 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 827 transitions. [2023-08-24 18:12:12,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 63.61538461538461) internal successors, (827), 13 states have internal predecessors, (827), 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) [2023-08-24 18:12:12,781 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 240.0) internal successors, (3360), 14 states have internal predecessors, (3360), 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) [2023-08-24 18:12:12,782 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 240.0) internal successors, (3360), 14 states have internal predecessors, (3360), 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) [2023-08-24 18:12:12,782 INFO L175 Difference]: Start difference. First operand has 34 places, 19 transitions, 98 flow. Second operand 13 states and 827 transitions. [2023-08-24 18:12:12,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 31 transitions, 211 flow [2023-08-24 18:12:12,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 31 transitions, 175 flow, removed 11 selfloop flow, removed 5 redundant places. [2023-08-24 18:12:12,784 INFO L231 Difference]: Finished difference. Result has 39 places, 0 transitions, 0 flow [2023-08-24 18:12:12,784 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=0, PETRI_PLACES=39, PETRI_TRANSITIONS=0} [2023-08-24 18:12:12,784 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 12 predicate places. [2023-08-24 18:12:12,785 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 0 transitions, 0 flow [2023-08-24 18:12:12,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 62.642857142857146) internal successors, (1754), 28 states have internal predecessors, (1754), 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) [2023-08-24 18:12:12,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (13 of 14 remaining) [2023-08-24 18:12:12,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2023-08-24 18:12:12,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2023-08-24 18:12:12,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2023-08-24 18:12:12,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2023-08-24 18:12:12,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 14 remaining) [2023-08-24 18:12:12,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2023-08-24 18:12:12,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2023-08-24 18:12:12,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONASSERT (5 of 14 remaining) [2023-08-24 18:12:12,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 14 remaining) [2023-08-24 18:12:12,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 14 remaining) [2023-08-24 18:12:12,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2023-08-24 18:12:12,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2023-08-24 18:12:12,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2023-08-24 18:12:12,801 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-24 18:12:12,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-24 18:12:12,995 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2023-08-24 18:12:12,999 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-24 18:12:12,999 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-24 18:12:13,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.08 06:12:13 BasicIcfg [2023-08-24 18:12:13,002 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-24 18:12:13,002 INFO L158 Benchmark]: Toolchain (without parser) took 87740.67ms. Allocated memory was 337.6MB in the beginning and 421.5MB in the end (delta: 83.9MB). Free memory was 311.7MB in the beginning and 273.5MB in the end (delta: 38.3MB). Peak memory consumption was 124.5MB. Max. memory is 16.0GB. [2023-08-24 18:12:13,002 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 337.6MB. Free memory is still 314.0MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-24 18:12:13,003 INFO L158 Benchmark]: CACSL2BoogieTranslator took 554.31ms. Allocated memory is still 337.6MB. Free memory was 311.7MB in the beginning and 278.8MB in the end (delta: 32.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.0GB. [2023-08-24 18:12:13,003 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.05ms. Allocated memory is still 337.6MB. Free memory was 278.8MB in the beginning and 276.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-24 18:12:13,003 INFO L158 Benchmark]: Boogie Preprocessor took 26.68ms. Allocated memory is still 337.6MB. Free memory was 276.2MB in the beginning and 274.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-24 18:12:13,003 INFO L158 Benchmark]: RCFGBuilder took 430.96ms. Allocated memory is still 337.6MB. Free memory was 274.7MB in the beginning and 311.5MB in the end (delta: -36.9MB). Peak memory consumption was 20.3MB. Max. memory is 16.0GB. [2023-08-24 18:12:13,004 INFO L158 Benchmark]: TraceAbstraction took 86679.49ms. Allocated memory was 337.6MB in the beginning and 421.5MB in the end (delta: 83.9MB). Free memory was 310.5MB in the beginning and 273.5MB in the end (delta: 37.0MB). Peak memory consumption was 120.9MB. Max. memory is 16.0GB. [2023-08-24 18:12:13,005 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 337.6MB. Free memory is still 314.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 554.31ms. Allocated memory is still 337.6MB. Free memory was 311.7MB in the beginning and 278.8MB in the end (delta: 32.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 43.05ms. Allocated memory is still 337.6MB. Free memory was 278.8MB in the beginning and 276.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 26.68ms. Allocated memory is still 337.6MB. Free memory was 276.2MB in the beginning and 274.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 430.96ms. Allocated memory is still 337.6MB. Free memory was 274.7MB in the beginning and 311.5MB in the end (delta: -36.9MB). Peak memory consumption was 20.3MB. Max. memory is 16.0GB. * TraceAbstraction took 86679.49ms. Allocated memory was 337.6MB in the beginning and 421.5MB in the end (delta: 83.9MB). Free memory was 310.5MB in the beginning and 273.5MB in the end (delta: 37.0MB). Peak memory consumption was 120.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 274]: Unsoundness Warning unspecified type, defaulting to int C: short [274] - GenericResultAtLocation [Line: 274]: Unsoundness Warning unspecified type, defaulting to int C: short [274] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.8s, 110 PlacesBefore, 27 PlacesAfterwards, 107 TransitionsBefore, 22 TransitionsAfterwards, 630 CoEnabledTransitionPairs, 6 FixpointIterations, 52 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 117 TotalNumberOfCompositions, 647 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 597, independent: 588, independent conditional: 0, independent unconditional: 588, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 363, independent: 358, independent conditional: 0, independent unconditional: 358, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 597, independent: 230, independent conditional: 0, independent unconditional: 230, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 363, unknown conditional: 0, unknown unconditional: 363] , Statistics on independence cache: Total cache size (in pairs): 4, Positive cache size: 3, Positive conditional cache size: 0, Positive unconditional cache size: 3, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1111]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1116]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1116]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1123]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1125]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1126]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1126]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1126]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 20]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 154 locations, 14 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: 86.6s, OverallIterations: 5, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 55.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 17 mSolverCounterUnknown, 110 SdHoareTripleChecker+Valid, 11.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 110 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 11.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 21 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 77 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 457 IncrementalHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 77 mSolverCounterUnsat, 0 mSDtfsCounter, 457 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 1 IntricatePredicates, 3 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 68.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=4, InterpolantAutomatonStates: 32, 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, 0.2s SatisfiabilityAnalysisTime, 26.5s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 104 ConstructedInterpolants, 13 QuantifiedInterpolants, 1781 SizeOfPredicates, 17 NumberOfNonLiveVariables, 455 ConjunctsInSsa, 84 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 8/33 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 - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-24 18:12:13,057 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...