/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -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-SemanticLbe.epf --rcfgbuilder.only.consider.context.switches.at.boundaries.of.atomic.blocks true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_04-priv_multi_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.datarace-free-lbe-02cf818-m [2023-11-17 11:34:11,470 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 11:34:11,545 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-SemanticLbe.epf [2023-11-17 11:34:11,585 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 11:34:11,586 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 11:34:11,587 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 11:34:11,587 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 11:34:11,588 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 11:34:11,588 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 11:34:11,593 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 11:34:11,594 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 11:34:11,595 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 11:34:11,595 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 11:34:11,596 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 11:34:11,596 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 11:34:11,597 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 11:34:11,597 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 11:34:11,597 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 11:34:11,597 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 11:34:11,597 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 11:34:11,597 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 11:34:11,598 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 11:34:11,598 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 11:34:11,599 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-17 11:34:11,600 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 11:34:11,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 11:34:11,600 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 11:34:11,600 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 11:34:11,601 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 11:34:11,601 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 11:34:11,602 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 11:34:11,602 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-17 11:34:11,602 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Only consider context switches at boundaries of atomic blocks -> true [2023-11-17 11:34:11,831 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 11:34:11,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 11:34:11,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 11:34:11,849 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 11:34:11,849 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 11:34:11,850 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_04-priv_multi_true.i [2023-11-17 11:34:13,107 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 11:34:13,316 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 11:34:13,317 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_04-priv_multi_true.i [2023-11-17 11:34:13,346 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bea67182c/db4e87023c3a4f0e8e5392c0fd30e26c/FLAGafcc9abed [2023-11-17 11:34:13,365 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bea67182c/db4e87023c3a4f0e8e5392c0fd30e26c [2023-11-17 11:34:13,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 11:34:13,368 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-17 11:34:13,369 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 11:34:13,369 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 11:34:13,373 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 11:34:13,374 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:34:13" (1/1) ... [2023-11-17 11:34:13,375 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bc2c2fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:13, skipping insertion in model container [2023-11-17 11:34:13,375 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:34:13" (1/1) ... [2023-11-17 11:34:13,427 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 11:34:13,574 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_04-priv_multi_true.i[1087,1100] [2023-11-17 11:34:13,792 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 11:34:13,808 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 11:34:13,820 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_04-priv_multi_true.i[1087,1100] [2023-11-17 11:34:13,857 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 11:34:13,894 WARN L675 CHandler]: The function sleep is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 11:34:13,901 INFO L206 MainTranslator]: Completed translation [2023-11-17 11:34:13,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:13 WrapperNode [2023-11-17 11:34:13,902 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 11:34:13,903 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 11:34:13,903 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 11:34:13,903 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 11:34:13,909 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:13" (1/1) ... [2023-11-17 11:34:13,925 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:13" (1/1) ... [2023-11-17 11:34:13,948 INFO L138 Inliner]: procedures = 272, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 115 [2023-11-17 11:34:13,948 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 11:34:13,949 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 11:34:13,949 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 11:34:13,949 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 11:34:13,956 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:13" (1/1) ... [2023-11-17 11:34:13,956 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:13" (1/1) ... [2023-11-17 11:34:13,961 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:13" (1/1) ... [2023-11-17 11:34:13,961 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:13" (1/1) ... [2023-11-17 11:34:13,974 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:13" (1/1) ... [2023-11-17 11:34:13,978 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:13" (1/1) ... [2023-11-17 11:34:13,982 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:13" (1/1) ... [2023-11-17 11:34:13,985 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:13" (1/1) ... [2023-11-17 11:34:13,990 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 11:34:13,991 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 11:34:13,992 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 11:34:13,992 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 11:34:13,992 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:13" (1/1) ... [2023-11-17 11:34:13,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 11:34:14,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:34:14,027 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) [2023-11-17 11:34:14,058 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 [2023-11-17 11:34:14,066 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2023-11-17 11:34:14,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 11:34:14,066 INFO L130 BoogieDeclarations]: Found specification of procedure generate [2023-11-17 11:34:14,067 INFO L138 BoogieDeclarations]: Found implementation of procedure generate [2023-11-17 11:34:14,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 11:34:14,067 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-17 11:34:14,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 11:34:14,068 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-17 11:34:14,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 11:34:14,068 INFO L130 BoogieDeclarations]: Found specification of procedure dispose [2023-11-17 11:34:14,068 INFO L138 BoogieDeclarations]: Found implementation of procedure dispose [2023-11-17 11:34:14,068 INFO L130 BoogieDeclarations]: Found specification of procedure process [2023-11-17 11:34:14,068 INFO L138 BoogieDeclarations]: Found implementation of procedure process [2023-11-17 11:34:14,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 11:34:14,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 11:34:14,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 11:34:14,071 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-17 11:34:14,391 INFO L239 CfgBuilder]: Building ICFG [2023-11-17 11:34:14,393 INFO L265 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 11:34:14,670 INFO L280 CfgBuilder]: Performing block encoding [2023-11-17 11:34:14,815 INFO L302 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 11:34:14,815 INFO L307 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-17 11:34:14,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:34:14 BoogieIcfgContainer [2023-11-17 11:34:14,817 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 11:34:14,819 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 11:34:14,819 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 11:34:14,821 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 11:34:14,822 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 11:34:13" (1/3) ... [2023-11-17 11:34:14,822 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fdb902b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:34:14, skipping insertion in model container [2023-11-17 11:34:14,822 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:13" (2/3) ... [2023-11-17 11:34:14,823 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fdb902b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:34:14, skipping insertion in model container [2023-11-17 11:34:14,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:34:14" (3/3) ... [2023-11-17 11:34:14,824 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_04-priv_multi_true.i [2023-11-17 11:34:14,840 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 11:34:14,840 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-17 11:34:14,840 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 11:34:14,886 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-17 11:34:14,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 67 places, 65 transitions, 142 flow [2023-11-17 11:34:14,942 INFO L124 PetriNetUnfolderBase]: 8/62 cut-off events. [2023-11-17 11:34:14,942 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 11:34:14,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 62 events. 8/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 160 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2023-11-17 11:34:14,949 INFO L82 GeneralOperation]: Start removeDead. Operand has 67 places, 65 transitions, 142 flow [2023-11-17 11:34:14,958 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 62 transitions, 133 flow [2023-11-17 11:34:14,961 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-17 11:34:14,973 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 62 transitions, 133 flow [2023-11-17 11:34:14,975 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 62 transitions, 133 flow [2023-11-17 11:34:14,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 62 transitions, 133 flow [2023-11-17 11:34:14,996 INFO L124 PetriNetUnfolderBase]: 8/62 cut-off events. [2023-11-17 11:34:14,997 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 11:34:14,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 62 events. 8/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 159 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2023-11-17 11:34:14,999 INFO L119 LiptonReduction]: Number of co-enabled transitions 2406 [2023-11-17 11:34:15,855 INFO L134 LiptonReduction]: Checked pairs total: 8317 [2023-11-17 11:34:15,856 INFO L136 LiptonReduction]: Total number of compositions: 37 [2023-11-17 11:34:15,868 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-17 11:34:15,874 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=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@18778e0a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 11:34:15,874 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-17 11:34:15,883 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-17 11:34:15,884 INFO L124 PetriNetUnfolderBase]: 5/32 cut-off events. [2023-11-17 11:34:15,884 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 11:34:15,884 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:34:15,885 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:34:15,885 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting disposeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:34:15,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:34:15,889 INFO L85 PathProgramCache]: Analyzing trace with hash -638271574, now seen corresponding path program 1 times [2023-11-17 11:34:15,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:34:15,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976147600] [2023-11-17 11:34:15,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:34:15,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:34:16,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:34:16,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:34:16,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:34:16,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976147600] [2023-11-17 11:34:16,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976147600] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:34:16,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:34:16,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 11:34:16,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777166876] [2023-11-17 11:34:16,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:34:16,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 11:34:16,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:34:16,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 11:34:16,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-17 11:34:16,499 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 102 [2023-11-17 11:34:16,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 39 transitions, 87 flow. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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) [2023-11-17 11:34:16,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:34:16,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 102 [2023-11-17 11:34:16,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:34:18,178 INFO L124 PetriNetUnfolderBase]: 15749/20540 cut-off events. [2023-11-17 11:34:18,179 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2023-11-17 11:34:18,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41233 conditions, 20540 events. 15749/20540 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 421. Compared 91224 event pairs, 2505 based on Foata normal form. 0/16556 useless extension candidates. Maximal degree in co-relation 41222. Up to 8621 conditions per place. [2023-11-17 11:34:18,384 INFO L140 encePairwiseOnDemand]: 93/102 looper letters, 102 selfloop transitions, 6 changer transitions 0/109 dead transitions. [2023-11-17 11:34:18,384 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 109 transitions, 446 flow [2023-11-17 11:34:18,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 11:34:18,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-17 11:34:18,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 234 transitions. [2023-11-17 11:34:18,398 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4588235294117647 [2023-11-17 11:34:18,399 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 234 transitions. [2023-11-17 11:34:18,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 234 transitions. [2023-11-17 11:34:18,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:34:18,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 234 transitions. [2023-11-17 11:34:18,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 46.8) internal successors, (234), 5 states have internal predecessors, (234), 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) [2023-11-17 11:34:18,412 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 102.0) internal successors, (612), 6 states have internal predecessors, (612), 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) [2023-11-17 11:34:18,412 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 102.0) internal successors, (612), 6 states have internal predecessors, (612), 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) [2023-11-17 11:34:18,414 INFO L175 Difference]: Start difference. First operand has 42 places, 39 transitions, 87 flow. Second operand 5 states and 234 transitions. [2023-11-17 11:34:18,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 109 transitions, 446 flow [2023-11-17 11:34:18,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 109 transitions, 442 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-17 11:34:18,423 INFO L231 Difference]: Finished difference. Result has 45 places, 41 transitions, 130 flow [2023-11-17 11:34:18,424 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=130, PETRI_PLACES=45, PETRI_TRANSITIONS=41} [2023-11-17 11:34:18,428 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 3 predicate places. [2023-11-17 11:34:18,428 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 41 transitions, 130 flow [2023-11-17 11:34:18,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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) [2023-11-17 11:34:18,429 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:34:18,429 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:34:18,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-17 11:34:18,430 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:34:18,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:34:18,430 INFO L85 PathProgramCache]: Analyzing trace with hash -638958197, now seen corresponding path program 1 times [2023-11-17 11:34:18,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:34:18,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175161275] [2023-11-17 11:34:18,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:34:18,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:34:18,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:34:18,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:34:18,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:34:18,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175161275] [2023-11-17 11:34:18,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175161275] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:34:18,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:34:18,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-17 11:34:18,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936650455] [2023-11-17 11:34:18,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:34:18,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 11:34:18,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:34:18,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 11:34:18,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 11:34:18,659 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 102 [2023-11-17 11:34:18,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 41 transitions, 130 flow. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2023-11-17 11:34:18,660 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:34:18,660 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 102 [2023-11-17 11:34:18,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:34:21,346 INFO L124 PetriNetUnfolderBase]: 27059/35264 cut-off events. [2023-11-17 11:34:21,347 INFO L125 PetriNetUnfolderBase]: For 10576/10576 co-relation queries the response was YES. [2023-11-17 11:34:21,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82294 conditions, 35264 events. 27059/35264 cut-off events. For 10576/10576 co-relation queries the response was YES. Maximal size of possible extension queue 705. Compared 171580 event pairs, 7661 based on Foata normal form. 0/30355 useless extension candidates. Maximal degree in co-relation 82280. Up to 21120 conditions per place. [2023-11-17 11:34:21,607 INFO L140 encePairwiseOnDemand]: 95/102 looper letters, 69 selfloop transitions, 8 changer transitions 0/78 dead transitions. [2023-11-17 11:34:21,607 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 78 transitions, 400 flow [2023-11-17 11:34:21,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 11:34:21,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 11:34:21,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 131 transitions. [2023-11-17 11:34:21,611 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42810457516339867 [2023-11-17 11:34:21,611 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 131 transitions. [2023-11-17 11:34:21,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 131 transitions. [2023-11-17 11:34:21,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:34:21,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 131 transitions. [2023-11-17 11:34:21,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 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) [2023-11-17 11:34:21,615 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 102.0) internal successors, (408), 4 states have internal predecessors, (408), 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) [2023-11-17 11:34:21,615 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 102.0) internal successors, (408), 4 states have internal predecessors, (408), 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) [2023-11-17 11:34:21,616 INFO L175 Difference]: Start difference. First operand has 45 places, 41 transitions, 130 flow. Second operand 3 states and 131 transitions. [2023-11-17 11:34:21,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 78 transitions, 400 flow [2023-11-17 11:34:21,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 78 transitions, 400 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-17 11:34:21,633 INFO L231 Difference]: Finished difference. Result has 49 places, 48 transitions, 204 flow [2023-11-17 11:34:21,634 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=204, PETRI_PLACES=49, PETRI_TRANSITIONS=48} [2023-11-17 11:34:21,634 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 7 predicate places. [2023-11-17 11:34:21,634 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 48 transitions, 204 flow [2023-11-17 11:34:21,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2023-11-17 11:34:21,635 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:34:21,635 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:34:21,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-17 11:34:21,637 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:34:21,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:34:21,641 INFO L85 PathProgramCache]: Analyzing trace with hash 793189583, now seen corresponding path program 1 times [2023-11-17 11:34:21,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:34:21,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144545888] [2023-11-17 11:34:21,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:34:21,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:34:21,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:34:21,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:34:21,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:34:21,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144545888] [2023-11-17 11:34:21,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144545888] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:34:21,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:34:21,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 11:34:21,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455384606] [2023-11-17 11:34:21,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:34:21,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 11:34:21,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:34:21,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 11:34:21,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-17 11:34:21,940 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 102 [2023-11-17 11:34:21,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 48 transitions, 204 flow. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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) [2023-11-17 11:34:21,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:34:21,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 102 [2023-11-17 11:34:21,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:34:24,537 INFO L124 PetriNetUnfolderBase]: 24799/32536 cut-off events. [2023-11-17 11:34:24,538 INFO L125 PetriNetUnfolderBase]: For 24632/24632 co-relation queries the response was YES. [2023-11-17 11:34:24,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85608 conditions, 32536 events. 24799/32536 cut-off events. For 24632/24632 co-relation queries the response was YES. Maximal size of possible extension queue 685. Compared 155829 event pairs, 4017 based on Foata normal form. 96/29257 useless extension candidates. Maximal degree in co-relation 85590. Up to 15701 conditions per place. [2023-11-17 11:34:24,723 INFO L140 encePairwiseOnDemand]: 94/102 looper letters, 102 selfloop transitions, 16 changer transitions 0/119 dead transitions. [2023-11-17 11:34:24,723 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 119 transitions, 662 flow [2023-11-17 11:34:24,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 11:34:24,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-17 11:34:24,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 212 transitions. [2023-11-17 11:34:24,725 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41568627450980394 [2023-11-17 11:34:24,725 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 212 transitions. [2023-11-17 11:34:24,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 212 transitions. [2023-11-17 11:34:24,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:34:24,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 212 transitions. [2023-11-17 11:34:24,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 42.4) internal successors, (212), 5 states have internal predecessors, (212), 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) [2023-11-17 11:34:24,727 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 102.0) internal successors, (612), 6 states have internal predecessors, (612), 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) [2023-11-17 11:34:24,727 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 102.0) internal successors, (612), 6 states have internal predecessors, (612), 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) [2023-11-17 11:34:24,727 INFO L175 Difference]: Start difference. First operand has 49 places, 48 transitions, 204 flow. Second operand 5 states and 212 transitions. [2023-11-17 11:34:24,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 119 transitions, 662 flow [2023-11-17 11:34:24,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 119 transitions, 638 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-17 11:34:24,752 INFO L231 Difference]: Finished difference. Result has 54 places, 56 transitions, 292 flow [2023-11-17 11:34:24,752 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=292, PETRI_PLACES=54, PETRI_TRANSITIONS=56} [2023-11-17 11:34:24,753 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 12 predicate places. [2023-11-17 11:34:24,753 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 56 transitions, 292 flow [2023-11-17 11:34:24,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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) [2023-11-17 11:34:24,753 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:34:24,753 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:34:24,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-17 11:34:24,754 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:34:24,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:34:24,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1288272897, now seen corresponding path program 1 times [2023-11-17 11:34:24,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:34:24,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262932905] [2023-11-17 11:34:24,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:34:24,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:34:24,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:34:24,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:34:24,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:34:24,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262932905] [2023-11-17 11:34:24,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262932905] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:34:24,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:34:24,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 11:34:24,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721720969] [2023-11-17 11:34:24,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:34:24,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 11:34:24,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:34:24,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 11:34:24,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 11:34:24,831 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 102 [2023-11-17 11:34:24,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 56 transitions, 292 flow. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2023-11-17 11:34:24,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:34:24,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 102 [2023-11-17 11:34:24,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:34:28,370 INFO L124 PetriNetUnfolderBase]: 39411/52523 cut-off events. [2023-11-17 11:34:28,370 INFO L125 PetriNetUnfolderBase]: For 52270/52270 co-relation queries the response was YES. [2023-11-17 11:34:28,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150284 conditions, 52523 events. 39411/52523 cut-off events. For 52270/52270 co-relation queries the response was YES. Maximal size of possible extension queue 1343. Compared 288594 event pairs, 8719 based on Foata normal form. 1096/50985 useless extension candidates. Maximal degree in co-relation 150263. Up to 32725 conditions per place. [2023-11-17 11:34:28,705 INFO L140 encePairwiseOnDemand]: 89/102 looper letters, 90 selfloop transitions, 14 changer transitions 0/105 dead transitions. [2023-11-17 11:34:28,705 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 105 transitions, 765 flow [2023-11-17 11:34:28,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 11:34:28,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 11:34:28,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 137 transitions. [2023-11-17 11:34:28,707 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4477124183006536 [2023-11-17 11:34:28,707 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 137 transitions. [2023-11-17 11:34:28,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 137 transitions. [2023-11-17 11:34:28,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:34:28,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 137 transitions. [2023-11-17 11:34:28,707 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2023-11-17 11:34:28,708 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 102.0) internal successors, (408), 4 states have internal predecessors, (408), 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) [2023-11-17 11:34:28,708 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 102.0) internal successors, (408), 4 states have internal predecessors, (408), 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) [2023-11-17 11:34:28,709 INFO L175 Difference]: Start difference. First operand has 54 places, 56 transitions, 292 flow. Second operand 3 states and 137 transitions. [2023-11-17 11:34:28,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 105 transitions, 765 flow [2023-11-17 11:34:28,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 105 transitions, 765 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-17 11:34:28,955 INFO L231 Difference]: Finished difference. Result has 57 places, 66 transitions, 384 flow [2023-11-17 11:34:28,955 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=384, PETRI_PLACES=57, PETRI_TRANSITIONS=66} [2023-11-17 11:34:28,956 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 15 predicate places. [2023-11-17 11:34:28,956 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 66 transitions, 384 flow [2023-11-17 11:34:28,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2023-11-17 11:34:28,957 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:34:28,957 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:34:28,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-17 11:34:28,957 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting disposeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:34:28,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:34:28,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1811848548, now seen corresponding path program 1 times [2023-11-17 11:34:28,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:34:28,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720542725] [2023-11-17 11:34:28,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:34:28,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:34:28,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:34:29,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:34:29,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:34:29,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720542725] [2023-11-17 11:34:29,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720542725] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:34:29,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:34:29,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-17 11:34:29,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77255322] [2023-11-17 11:34:29,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:34:29,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-17 11:34:29,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:34:29,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-17 11:34:29,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-17 11:34:29,132 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 102 [2023-11-17 11:34:29,132 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 66 transitions, 384 flow. Second operand has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 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) [2023-11-17 11:34:29,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:34:29,133 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 102 [2023-11-17 11:34:29,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:34:38,336 INFO L124 PetriNetUnfolderBase]: 98158/132174 cut-off events. [2023-11-17 11:34:38,336 INFO L125 PetriNetUnfolderBase]: For 195454/195454 co-relation queries the response was YES. [2023-11-17 11:34:38,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 451018 conditions, 132174 events. 98158/132174 cut-off events. For 195454/195454 co-relation queries the response was YES. Maximal size of possible extension queue 2689. Compared 797800 event pairs, 13132 based on Foata normal form. 7974/140148 useless extension candidates. Maximal degree in co-relation 450995. Up to 44126 conditions per place. [2023-11-17 11:34:39,471 INFO L140 encePairwiseOnDemand]: 90/102 looper letters, 379 selfloop transitions, 71 changer transitions 0/451 dead transitions. [2023-11-17 11:34:39,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 451 transitions, 3179 flow [2023-11-17 11:34:39,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-17 11:34:39,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-17 11:34:39,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 595 transitions. [2023-11-17 11:34:39,474 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44871794871794873 [2023-11-17 11:34:39,474 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 595 transitions. [2023-11-17 11:34:39,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 595 transitions. [2023-11-17 11:34:39,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:34:39,475 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 595 transitions. [2023-11-17 11:34:39,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 45.76923076923077) internal successors, (595), 13 states have internal predecessors, (595), 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) [2023-11-17 11:34:39,479 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 102.0) internal successors, (1428), 14 states have internal predecessors, (1428), 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) [2023-11-17 11:34:39,480 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 102.0) internal successors, (1428), 14 states have internal predecessors, (1428), 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) [2023-11-17 11:34:39,480 INFO L175 Difference]: Start difference. First operand has 57 places, 66 transitions, 384 flow. Second operand 13 states and 595 transitions. [2023-11-17 11:34:39,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 451 transitions, 3179 flow [2023-11-17 11:34:41,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 451 transitions, 3047 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 11:34:41,852 INFO L231 Difference]: Finished difference. Result has 80 places, 133 transitions, 1264 flow [2023-11-17 11:34:41,852 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1264, PETRI_PLACES=80, PETRI_TRANSITIONS=133} [2023-11-17 11:34:41,853 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 38 predicate places. [2023-11-17 11:34:41,853 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 133 transitions, 1264 flow [2023-11-17 11:34:41,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 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) [2023-11-17 11:34:41,853 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:34:41,853 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:34:41,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-17 11:34:41,854 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 11:34:41,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:34:41,854 INFO L85 PathProgramCache]: Analyzing trace with hash -766912243, now seen corresponding path program 1 times [2023-11-17 11:34:41,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:34:41,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396836967] [2023-11-17 11:34:41,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:34:41,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:34:41,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:34:42,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:34:42,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:34:42,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396836967] [2023-11-17 11:34:42,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396836967] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:34:42,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:34:42,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 11:34:42,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659576695] [2023-11-17 11:34:42,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:34:42,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 11:34:42,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:34:42,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 11:34:42,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-17 11:34:42,062 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 102 [2023-11-17 11:34:42,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 133 transitions, 1264 flow. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 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) [2023-11-17 11:34:42,063 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:34:42,063 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 102 [2023-11-17 11:34:42,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:34:42,455 INFO L124 PetriNetUnfolderBase]: 3478/5098 cut-off events. [2023-11-17 11:34:42,455 INFO L125 PetriNetUnfolderBase]: For 18290/18292 co-relation queries the response was YES. [2023-11-17 11:34:42,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18735 conditions, 5098 events. 3478/5098 cut-off events. For 18290/18292 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 23462 event pairs, 474 based on Foata normal form. 487/5585 useless extension candidates. Maximal degree in co-relation 18699. Up to 4436 conditions per place. [2023-11-17 11:34:42,471 INFO L140 encePairwiseOnDemand]: 95/102 looper letters, 0 selfloop transitions, 0 changer transitions 73/73 dead transitions. [2023-11-17 11:34:42,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 73 transitions, 664 flow [2023-11-17 11:34:42,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-17 11:34:42,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-17 11:34:42,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 136 transitions. [2023-11-17 11:34:42,472 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3333333333333333 [2023-11-17 11:34:42,473 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 136 transitions. [2023-11-17 11:34:42,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 136 transitions. [2023-11-17 11:34:42,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:34:42,473 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 136 transitions. [2023-11-17 11:34:42,473 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 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) [2023-11-17 11:34:42,474 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 102.0) internal successors, (510), 5 states have internal predecessors, (510), 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) [2023-11-17 11:34:42,474 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 102.0) internal successors, (510), 5 states have internal predecessors, (510), 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) [2023-11-17 11:34:42,475 INFO L175 Difference]: Start difference. First operand has 80 places, 133 transitions, 1264 flow. Second operand 4 states and 136 transitions. [2023-11-17 11:34:42,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 73 transitions, 664 flow [2023-11-17 11:34:42,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 73 transitions, 586 flow, removed 27 selfloop flow, removed 9 redundant places. [2023-11-17 11:34:42,546 INFO L231 Difference]: Finished difference. Result has 63 places, 0 transitions, 0 flow [2023-11-17 11:34:42,547 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=63, PETRI_TRANSITIONS=0} [2023-11-17 11:34:42,547 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 21 predicate places. [2023-11-17 11:34:42,547 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 0 transitions, 0 flow [2023-11-17 11:34:42,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 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) [2023-11-17 11:34:42,550 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2023-11-17 11:34:42,550 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 6 remaining) [2023-11-17 11:34:42,550 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2023-11-17 11:34:42,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2023-11-17 11:34:42,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location disposeErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2023-11-17 11:34:42,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location disposeErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2023-11-17 11:34:42,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-17 11:34:42,551 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-17 11:34:42,555 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-17 11:34:42,556 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-17 11:34:42,558 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 11:34:42 BasicIcfg [2023-11-17 11:34:42,559 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-17 11:34:42,559 INFO L158 Benchmark]: Toolchain (without parser) took 29190.96ms. Allocated memory was 309.3MB in the beginning and 7.0GB in the end (delta: 6.7GB). Free memory was 257.4MB in the beginning and 4.9GB in the end (delta: -4.7GB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. [2023-11-17 11:34:42,559 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 200.3MB. Free memory is still 152.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-17 11:34:42,560 INFO L158 Benchmark]: CACSL2BoogieTranslator took 532.89ms. Allocated memory is still 309.3MB. Free memory was 257.0MB in the beginning and 226.9MB in the end (delta: 30.1MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. [2023-11-17 11:34:42,560 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.33ms. Allocated memory is still 309.3MB. Free memory was 226.9MB in the beginning and 224.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-11-17 11:34:42,560 INFO L158 Benchmark]: Boogie Preprocessor took 41.92ms. Allocated memory is still 309.3MB. Free memory was 224.3MB in the beginning and 221.4MB in the end (delta: 2.9MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-11-17 11:34:42,561 INFO L158 Benchmark]: RCFGBuilder took 825.53ms. Allocated memory is still 309.3MB. Free memory was 221.4MB in the beginning and 260.4MB in the end (delta: -39.0MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2023-11-17 11:34:42,561 INFO L158 Benchmark]: TraceAbstraction took 27740.01ms. Allocated memory was 309.3MB in the beginning and 7.0GB in the end (delta: 6.7GB). Free memory was 259.9MB in the beginning and 4.9GB in the end (delta: -4.7GB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. [2023-11-17 11:34:42,563 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 200.3MB. Free memory is still 152.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 532.89ms. Allocated memory is still 309.3MB. Free memory was 257.0MB in the beginning and 226.9MB in the end (delta: 30.1MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.33ms. Allocated memory is still 309.3MB. Free memory was 226.9MB in the beginning and 224.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 41.92ms. Allocated memory is still 309.3MB. Free memory was 224.3MB in the beginning and 221.4MB in the end (delta: 2.9MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 825.53ms. Allocated memory is still 309.3MB. Free memory was 221.4MB in the beginning and 260.4MB in the end (delta: -39.0MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. * TraceAbstraction took 27740.01ms. Allocated memory was 309.3MB in the beginning and 7.0GB in the end (delta: 6.7GB). Free memory was 259.9MB in the beginning and 4.9GB in the end (delta: -4.7GB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.9s, 64 PlacesBefore, 42 PlacesAfterwards, 62 TransitionsBefore, 39 TransitionsAfterwards, 2406 CoEnabledTransitionPairs, 6 FixpointIterations, 0 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 37 TotalNumberOfCompositions, 8317 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3122, independent: 2874, independent conditional: 0, independent unconditional: 2874, dependent: 248, dependent conditional: 0, dependent unconditional: 248, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1525, independent: 1463, independent conditional: 0, independent unconditional: 1463, dependent: 62, dependent conditional: 0, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1525, independent: 1381, independent conditional: 0, independent unconditional: 1381, dependent: 144, dependent conditional: 0, dependent unconditional: 144, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 144, independent: 82, independent conditional: 0, independent unconditional: 82, dependent: 62, dependent conditional: 0, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 229, independent: 85, independent conditional: 0, independent unconditional: 85, dependent: 144, dependent conditional: 0, dependent unconditional: 144, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3122, independent: 1411, independent conditional: 0, independent unconditional: 1411, dependent: 186, dependent conditional: 0, dependent unconditional: 186, unknown: 1525, unknown conditional: 0, unknown unconditional: 1525] , Statistics on independence cache: Total cache size (in pairs): 281, Positive cache size: 252, Positive conditional cache size: 0, Positive unconditional cache size: 252, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 98 locations, 6 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: 27.6s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 25.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 507 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 507 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 858 IncrementalHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 0 mSDtfsCounter, 858 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1264occurred in iteration=5, InterpolantAutomatonStates: 33, 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, 1.2s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 286 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-17 11:34:42,577 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...