/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/pthread/queue_ok_longer.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.datarace-free-lbe-02cf818-m [2023-11-17 11:11:56,462 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 11:11:56,551 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 11:11:56,569 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 11:11:56,570 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 11:11:56,570 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 11:11:56,571 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 11:11:56,571 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 11:11:56,571 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 11:11:56,571 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 11:11:56,572 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 11:11:56,572 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 11:11:56,572 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 11:11:56,572 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 11:11:56,572 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 11:11:56,573 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 11:11:56,573 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 11:11:56,573 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 11:11:56,573 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 11:11:56,573 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 11:11:56,574 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 11:11:56,577 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 11:11:56,577 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 11:11:56,577 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-17 11:11:56,577 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 11:11:56,577 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 11:11:56,578 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 11:11:56,578 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 11:11:56,578 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 11:11:56,578 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 11:11:56,578 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 11:11:56,579 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-17 11:11:56,579 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Only consider context switches at boundaries of atomic blocks -> true [2023-11-17 11:11:56,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 11:11:56,821 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 11:11:56,823 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 11:11:56,824 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 11:11:56,824 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 11:11:56,825 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/queue_ok_longer.i [2023-11-17 11:11:57,974 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 11:11:58,212 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 11:11:58,213 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_ok_longer.i [2023-11-17 11:11:58,224 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad2622b66/b9861e8f47964934b11b43bb88ff3f6f/FLAG1f19749cf [2023-11-17 11:11:58,256 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad2622b66/b9861e8f47964934b11b43bb88ff3f6f [2023-11-17 11:11:58,258 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 11:11:58,260 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-17 11:11:58,261 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 11:11:58,261 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 11:11:58,266 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 11:11:58,266 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:11:58" (1/1) ... [2023-11-17 11:11:58,267 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c7f5710 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:11:58, skipping insertion in model container [2023-11-17 11:11:58,267 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:11:58" (1/1) ... [2023-11-17 11:11:58,316 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 11:11:58,721 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_ok_longer.i[43272,43285] [2023-11-17 11:11:58,729 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_ok_longer.i[43545,43558] [2023-11-17 11:11:58,739 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 11:11:58,749 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 11:11:58,790 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_ok_longer.i[43272,43285] [2023-11-17 11:11:58,794 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_ok_longer.i[43545,43558] [2023-11-17 11:11:58,800 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 11:11:58,855 INFO L206 MainTranslator]: Completed translation [2023-11-17 11:11:58,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:11:58 WrapperNode [2023-11-17 11:11:58,855 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 11:11:58,856 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 11:11:58,857 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 11:11:58,857 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 11:11:58,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:11:58" (1/1) ... [2023-11-17 11:11:58,892 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:11:58" (1/1) ... [2023-11-17 11:11:58,923 INFO L138 Inliner]: procedures = 275, calls = 59, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 208 [2023-11-17 11:11:58,924 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 11:11:58,924 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 11:11:58,924 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 11:11:58,925 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 11:11:58,931 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:11:58" (1/1) ... [2023-11-17 11:11:58,932 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:11:58" (1/1) ... [2023-11-17 11:11:58,946 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:11:58" (1/1) ... [2023-11-17 11:11:58,947 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:11:58" (1/1) ... [2023-11-17 11:11:58,956 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:11:58" (1/1) ... [2023-11-17 11:11:58,959 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:11:58" (1/1) ... [2023-11-17 11:11:58,960 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:11:58" (1/1) ... [2023-11-17 11:11:58,961 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:11:58" (1/1) ... [2023-11-17 11:11:58,964 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 11:11:58,964 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 11:11:58,964 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 11:11:58,965 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 11:11:58,965 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:11:58" (1/1) ... [2023-11-17 11:11:58,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 11:11:58,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:11:59,005 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 11:11:59,021 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 11:11:59,041 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-11-17 11:11:59,041 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-11-17 11:11:59,041 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-11-17 11:11:59,041 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-11-17 11:11:59,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 11:11:59,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 11:11:59,041 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-17 11:11:59,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-17 11:11:59,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 11:11:59,042 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-17 11:11:59,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 11:11:59,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 11:11:59,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 11:11:59,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 11:11:59,043 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 11:11:59,174 INFO L239 CfgBuilder]: Building ICFG [2023-11-17 11:11:59,176 INFO L265 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 11:11:59,442 INFO L280 CfgBuilder]: Performing block encoding [2023-11-17 11:11:59,659 INFO L302 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 11:11:59,659 INFO L307 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-17 11:11:59,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:11:59 BoogieIcfgContainer [2023-11-17 11:11:59,660 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 11:11:59,662 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 11:11:59,662 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 11:11:59,664 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 11:11:59,664 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 11:11:58" (1/3) ... [2023-11-17 11:11:59,665 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@146a3e98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:11:59, skipping insertion in model container [2023-11-17 11:11:59,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:11:58" (2/3) ... [2023-11-17 11:11:59,665 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@146a3e98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:11:59, skipping insertion in model container [2023-11-17 11:11:59,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:11:59" (3/3) ... [2023-11-17 11:11:59,666 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_ok_longer.i [2023-11-17 11:11:59,679 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 11:11:59,679 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-17 11:11:59,679 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 11:11:59,724 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-17 11:11:59,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 41 transitions, 96 flow [2023-11-17 11:11:59,767 INFO L124 PetriNetUnfolderBase]: 7/39 cut-off events. [2023-11-17 11:11:59,768 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-17 11:11:59,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 39 events. 7/39 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 49 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 30. Up to 3 conditions per place. [2023-11-17 11:11:59,771 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 41 transitions, 96 flow [2023-11-17 11:11:59,774 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 37 places, 37 transitions, 83 flow [2023-11-17 11:11:59,784 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-17 11:11:59,793 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 37 transitions, 83 flow [2023-11-17 11:11:59,796 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 37 transitions, 83 flow [2023-11-17 11:11:59,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 37 transitions, 83 flow [2023-11-17 11:11:59,803 INFO L124 PetriNetUnfolderBase]: 7/37 cut-off events. [2023-11-17 11:11:59,803 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-17 11:11:59,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 37 events. 7/37 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 49 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 30. Up to 3 conditions per place. [2023-11-17 11:11:59,804 INFO L119 LiptonReduction]: Number of co-enabled transitions 438 [2023-11-17 11:12:02,187 INFO L134 LiptonReduction]: Checked pairs total: 1210 [2023-11-17 11:12:02,187 INFO L136 LiptonReduction]: Total number of compositions: 25 [2023-11-17 11:12:02,199 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-17 11:12:02,203 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;@571bbbab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 11:12:02,203 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-11-17 11:12:02,204 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-17 11:12:02,204 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-17 11:12:02,204 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 11:12:02,204 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:12:02,205 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-17 11:12:02,205 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 11:12:02,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:12:02,209 INFO L85 PathProgramCache]: Analyzing trace with hash 606, now seen corresponding path program 1 times [2023-11-17 11:12:02,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:12:02,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413392546] [2023-11-17 11:12:02,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:12:02,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:12:02,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:12:02,292 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 11:12:02,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:12:02,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413392546] [2023-11-17 11:12:02,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413392546] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:12:02,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:12:02,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-17 11:12:02,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602879840] [2023-11-17 11:12:02,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:12:02,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-17 11:12:02,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:12:02,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-17 11:12:02,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-17 11:12:02,319 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 66 [2023-11-17 11:12:02,321 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 25 transitions, 59 flow. Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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 11:12:02,321 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:12:02,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 66 [2023-11-17 11:12:02,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:12:02,421 INFO L124 PetriNetUnfolderBase]: 219/344 cut-off events. [2023-11-17 11:12:02,421 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2023-11-17 11:12:02,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 714 conditions, 344 events. 219/344 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1045 event pairs, 141 based on Foata normal form. 0/252 useless extension candidates. Maximal degree in co-relation 624. Up to 345 conditions per place. [2023-11-17 11:12:02,424 INFO L140 encePairwiseOnDemand]: 65/66 looper letters, 20 selfloop transitions, 0 changer transitions 4/24 dead transitions. [2023-11-17 11:12:02,424 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 24 transitions, 105 flow [2023-11-17 11:12:02,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 11:12:02,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-17 11:12:02,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 41 transitions. [2023-11-17 11:12:02,433 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3106060606060606 [2023-11-17 11:12:02,433 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 41 transitions. [2023-11-17 11:12:02,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 41 transitions. [2023-11-17 11:12:02,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:12:02,436 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 41 transitions. [2023-11-17 11:12:02,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 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 11:12:02,439 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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 11:12:02,439 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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 11:12:02,441 INFO L175 Difference]: Start difference. First operand has 27 places, 25 transitions, 59 flow. Second operand 2 states and 41 transitions. [2023-11-17 11:12:02,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 24 transitions, 105 flow [2023-11-17 11:12:02,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 24 transitions, 100 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-17 11:12:02,444 INFO L231 Difference]: Finished difference. Result has 24 places, 20 transitions, 44 flow [2023-11-17 11:12:02,445 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=44, PETRI_PLACES=24, PETRI_TRANSITIONS=20} [2023-11-17 11:12:02,448 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -3 predicate places. [2023-11-17 11:12:02,448 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 20 transitions, 44 flow [2023-11-17 11:12:02,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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 11:12:02,449 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:12:02,449 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:12:02,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-17 11:12:02,449 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 11:12:02,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:12:02,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1966545953, now seen corresponding path program 1 times [2023-11-17 11:12:02,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:12:02,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913581776] [2023-11-17 11:12:02,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:12:02,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:12:02,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:12:02,651 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 11:12:02,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:12:02,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913581776] [2023-11-17 11:12:02,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913581776] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:12:02,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:12:02,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 11:12:02,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598261811] [2023-11-17 11:12:02,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:12:02,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 11:12:02,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:12:02,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 11:12:02,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 11:12:02,655 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 66 [2023-11-17 11:12:02,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 11:12:02,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:12:02,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 66 [2023-11-17 11:12:02,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:12:02,720 INFO L124 PetriNetUnfolderBase]: 102/189 cut-off events. [2023-11-17 11:12:02,720 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-17 11:12:02,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 400 conditions, 189 events. 102/189 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 516 event pairs, 51 based on Foata normal form. 14/175 useless extension candidates. Maximal degree in co-relation 397. Up to 110 conditions per place. [2023-11-17 11:12:02,722 INFO L140 encePairwiseOnDemand]: 63/66 looper letters, 21 selfloop transitions, 2 changer transitions 5/28 dead transitions. [2023-11-17 11:12:02,722 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 28 transitions, 119 flow [2023-11-17 11:12:02,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 11:12:02,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 11:12:02,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 50 transitions. [2023-11-17 11:12:02,723 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.25252525252525254 [2023-11-17 11:12:02,723 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 50 transitions. [2023-11-17 11:12:02,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 50 transitions. [2023-11-17 11:12:02,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:12:02,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 50 transitions. [2023-11-17 11:12:02,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 11:12:02,724 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 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 11:12:02,725 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 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 11:12:02,725 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 44 flow. Second operand 3 states and 50 transitions. [2023-11-17 11:12:02,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 28 transitions, 119 flow [2023-11-17 11:12:02,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 28 transitions, 119 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-17 11:12:02,726 INFO L231 Difference]: Finished difference. Result has 24 places, 19 transitions, 50 flow [2023-11-17 11:12:02,726 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=24, PETRI_TRANSITIONS=19} [2023-11-17 11:12:02,736 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -3 predicate places. [2023-11-17 11:12:02,736 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 19 transitions, 50 flow [2023-11-17 11:12:02,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 11:12:02,736 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:12:02,736 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:12:02,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-17 11:12:02,736 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 11:12:02,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:12:02,737 INFO L85 PathProgramCache]: Analyzing trace with hash 892376910, now seen corresponding path program 1 times [2023-11-17 11:12:02,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:12:02,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457023785] [2023-11-17 11:12:02,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:12:02,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:12:02,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:12:02,811 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 11:12:02,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:12:02,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457023785] [2023-11-17 11:12:02,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457023785] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:12:02,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:12:02,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 11:12:02,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348273354] [2023-11-17 11:12:02,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:12:02,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 11:12:02,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:12:02,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 11:12:02,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 11:12:02,813 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 66 [2023-11-17 11:12:02,814 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 19 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 11:12:02,814 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:12:02,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 66 [2023-11-17 11:12:02,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:12:02,864 INFO L124 PetriNetUnfolderBase]: 88/159 cut-off events. [2023-11-17 11:12:02,864 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-11-17 11:12:02,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 359 conditions, 159 events. 88/159 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 378 event pairs, 60 based on Foata normal form. 6/149 useless extension candidates. Maximal degree in co-relation 354. Up to 148 conditions per place. [2023-11-17 11:12:02,865 INFO L140 encePairwiseOnDemand]: 63/66 looper letters, 22 selfloop transitions, 2 changer transitions 0/24 dead transitions. [2023-11-17 11:12:02,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 24 transitions, 110 flow [2023-11-17 11:12:02,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 11:12:02,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 11:12:02,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 49 transitions. [2023-11-17 11:12:02,867 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2474747474747475 [2023-11-17 11:12:02,867 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 49 transitions. [2023-11-17 11:12:02,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 49 transitions. [2023-11-17 11:12:02,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:12:02,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 49 transitions. [2023-11-17 11:12:02,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 11:12:02,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 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 11:12:02,868 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 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 11:12:02,868 INFO L175 Difference]: Start difference. First operand has 24 places, 19 transitions, 50 flow. Second operand 3 states and 49 transitions. [2023-11-17 11:12:02,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 24 transitions, 110 flow [2023-11-17 11:12:02,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 24 transitions, 106 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-17 11:12:02,869 INFO L231 Difference]: Finished difference. Result has 25 places, 20 transitions, 58 flow [2023-11-17 11:12:02,869 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=58, PETRI_PLACES=25, PETRI_TRANSITIONS=20} [2023-11-17 11:12:02,870 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -2 predicate places. [2023-11-17 11:12:02,870 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 20 transitions, 58 flow [2023-11-17 11:12:02,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 11:12:02,870 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:12:02,870 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:12:02,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-17 11:12:02,870 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 11:12:02,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:12:02,871 INFO L85 PathProgramCache]: Analyzing trace with hash 2090131673, now seen corresponding path program 1 times [2023-11-17 11:12:02,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:12:02,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667345363] [2023-11-17 11:12:02,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:12:02,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:12:02,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:12:02,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:12:02,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:12:02,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667345363] [2023-11-17 11:12:02,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667345363] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 11:12:02,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064306234] [2023-11-17 11:12:02,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:12:02,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:12:02,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:12:02,922 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) [2023-11-17 11:12:02,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-17 11:12:03,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:12:03,077 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-17 11:12:03,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 11:12:03,106 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:12:03,106 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 11:12:03,121 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:12:03,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1064306234] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 11:12:03,122 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 11:12:03,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-17 11:12:03,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549143502] [2023-11-17 11:12:03,122 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 11:12:03,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-17 11:12:03,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:12:03,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-17 11:12:03,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-17 11:12:03,127 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 66 [2023-11-17 11:12:03,127 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 20 transitions, 58 flow. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 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 11:12:03,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:12:03,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 66 [2023-11-17 11:12:03,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:12:03,248 INFO L124 PetriNetUnfolderBase]: 106/195 cut-off events. [2023-11-17 11:12:03,249 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2023-11-17 11:12:03,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 479 conditions, 195 events. 106/195 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 490 event pairs, 60 based on Foata normal form. 0/173 useless extension candidates. Maximal degree in co-relation 473. Up to 148 conditions per place. [2023-11-17 11:12:03,250 INFO L140 encePairwiseOnDemand]: 63/66 looper letters, 34 selfloop transitions, 5 changer transitions 0/39 dead transitions. [2023-11-17 11:12:03,250 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 39 transitions, 188 flow [2023-11-17 11:12:03,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 11:12:03,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-17 11:12:03,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 90 transitions. [2023-11-17 11:12:03,252 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.22727272727272727 [2023-11-17 11:12:03,252 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 90 transitions. [2023-11-17 11:12:03,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 90 transitions. [2023-11-17 11:12:03,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:12:03,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 90 transitions. [2023-11-17 11:12:03,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 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 11:12:03,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 66.0) internal successors, (462), 7 states have internal predecessors, (462), 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 11:12:03,254 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 66.0) internal successors, (462), 7 states have internal predecessors, (462), 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 11:12:03,254 INFO L175 Difference]: Start difference. First operand has 25 places, 20 transitions, 58 flow. Second operand 6 states and 90 transitions. [2023-11-17 11:12:03,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 39 transitions, 188 flow [2023-11-17 11:12:03,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 39 transitions, 184 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-17 11:12:03,255 INFO L231 Difference]: Finished difference. Result has 32 places, 23 transitions, 90 flow [2023-11-17 11:12:03,255 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=90, PETRI_PLACES=32, PETRI_TRANSITIONS=23} [2023-11-17 11:12:03,256 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 5 predicate places. [2023-11-17 11:12:03,256 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 23 transitions, 90 flow [2023-11-17 11:12:03,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 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 11:12:03,256 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:12:03,257 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:12:03,266 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-17 11:12:03,463 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 [2023-11-17 11:12:03,463 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 11:12:03,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:12:03,464 INFO L85 PathProgramCache]: Analyzing trace with hash 280764942, now seen corresponding path program 2 times [2023-11-17 11:12:03,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:12:03,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142815417] [2023-11-17 11:12:03,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:12:03,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:12:03,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:12:03,591 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-17 11:12:03,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:12:03,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142815417] [2023-11-17 11:12:03,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142815417] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:12:03,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:12:03,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 11:12:03,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245925689] [2023-11-17 11:12:03,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:12:03,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 11:12:03,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:12:03,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 11:12:03,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 11:12:03,593 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 66 [2023-11-17 11:12:03,593 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 23 transitions, 90 flow. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 11:12:03,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:12:03,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 66 [2023-11-17 11:12:03,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:12:03,645 INFO L124 PetriNetUnfolderBase]: 68/137 cut-off events. [2023-11-17 11:12:03,645 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-17 11:12:03,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 386 conditions, 137 events. 68/137 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 318 event pairs, 6 based on Foata normal form. 16/141 useless extension candidates. Maximal degree in co-relation 377. Up to 116 conditions per place. [2023-11-17 11:12:03,646 INFO L140 encePairwiseOnDemand]: 63/66 looper letters, 26 selfloop transitions, 3 changer transitions 0/29 dead transitions. [2023-11-17 11:12:03,646 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 29 transitions, 163 flow [2023-11-17 11:12:03,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 11:12:03,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 11:12:03,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 51 transitions. [2023-11-17 11:12:03,647 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.25757575757575757 [2023-11-17 11:12:03,647 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 51 transitions. [2023-11-17 11:12:03,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 51 transitions. [2023-11-17 11:12:03,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:12:03,648 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 51 transitions. [2023-11-17 11:12:03,648 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 11:12:03,648 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 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 11:12:03,648 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 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 11:12:03,649 INFO L175 Difference]: Start difference. First operand has 32 places, 23 transitions, 90 flow. Second operand 3 states and 51 transitions. [2023-11-17 11:12:03,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 29 transitions, 163 flow [2023-11-17 11:12:03,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 29 transitions, 149 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-11-17 11:12:03,650 INFO L231 Difference]: Finished difference. Result has 33 places, 23 transitions, 82 flow [2023-11-17 11:12:03,650 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=33, PETRI_TRANSITIONS=23} [2023-11-17 11:12:03,651 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 6 predicate places. [2023-11-17 11:12:03,651 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 23 transitions, 82 flow [2023-11-17 11:12:03,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 11:12:03,651 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:12:03,651 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:12:03,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-17 11:12:03,652 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 11:12:03,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:12:03,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1167688477, now seen corresponding path program 1 times [2023-11-17 11:12:03,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:12:03,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492991274] [2023-11-17 11:12:03,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:12:03,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:12:03,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:12:03,775 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:12:03,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:12:03,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492991274] [2023-11-17 11:12:03,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492991274] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 11:12:03,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404227704] [2023-11-17 11:12:03,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:12:03,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:12:03,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:12:03,777 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) [2023-11-17 11:12:03,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-17 11:12:03,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:12:03,912 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-17 11:12:03,913 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 11:12:03,929 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:12:03,930 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 11:12:03,973 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:12:03,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [404227704] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 11:12:03,974 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 11:12:03,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2023-11-17 11:12:03,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960263711] [2023-11-17 11:12:03,974 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 11:12:03,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-17 11:12:03,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:12:03,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-17 11:12:03,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-17 11:12:03,977 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 66 [2023-11-17 11:12:03,977 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 23 transitions, 82 flow. Second operand has 13 states, 13 states have (on average 9.846153846153847) internal successors, (128), 13 states have internal predecessors, (128), 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 11:12:03,977 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:12:03,977 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 66 [2023-11-17 11:12:03,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:12:04,105 INFO L124 PetriNetUnfolderBase]: 86/179 cut-off events. [2023-11-17 11:12:04,105 INFO L125 PetriNetUnfolderBase]: For 145/145 co-relation queries the response was YES. [2023-11-17 11:12:04,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 519 conditions, 179 events. 86/179 cut-off events. For 145/145 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 381 event pairs, 40 based on Foata normal form. 24/191 useless extension candidates. Maximal degree in co-relation 509. Up to 110 conditions per place. [2023-11-17 11:12:04,107 INFO L140 encePairwiseOnDemand]: 63/66 looper letters, 48 selfloop transitions, 11 changer transitions 0/59 dead transitions. [2023-11-17 11:12:04,107 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 59 transitions, 316 flow [2023-11-17 11:12:04,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-17 11:12:04,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-17 11:12:04,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 161 transitions. [2023-11-17 11:12:04,109 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2032828282828283 [2023-11-17 11:12:04,109 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 161 transitions. [2023-11-17 11:12:04,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 161 transitions. [2023-11-17 11:12:04,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:12:04,109 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 161 transitions. [2023-11-17 11:12:04,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 13.416666666666666) internal successors, (161), 12 states have internal predecessors, (161), 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 11:12:04,113 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 66.0) internal successors, (858), 13 states have internal predecessors, (858), 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 11:12:04,113 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 66.0) internal successors, (858), 13 states have internal predecessors, (858), 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 11:12:04,113 INFO L175 Difference]: Start difference. First operand has 33 places, 23 transitions, 82 flow. Second operand 12 states and 161 transitions. [2023-11-17 11:12:04,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 59 transitions, 316 flow [2023-11-17 11:12:04,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 59 transitions, 313 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 11:12:04,118 INFO L231 Difference]: Finished difference. Result has 49 places, 29 transitions, 163 flow [2023-11-17 11:12:04,118 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=163, PETRI_PLACES=49, PETRI_TRANSITIONS=29} [2023-11-17 11:12:04,119 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 22 predicate places. [2023-11-17 11:12:04,119 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 29 transitions, 163 flow [2023-11-17 11:12:04,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.846153846153847) internal successors, (128), 13 states have internal predecessors, (128), 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 11:12:04,119 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:12:04,120 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:12:04,141 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-17 11:12:04,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-17 11:12:04,329 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 11:12:04,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:12:04,329 INFO L85 PathProgramCache]: Analyzing trace with hash 194161037, now seen corresponding path program 2 times [2023-11-17 11:12:04,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:12:04,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174354950] [2023-11-17 11:12:04,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:12:04,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:12:04,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:12:04,590 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:12:04,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:12:04,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174354950] [2023-11-17 11:12:04,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174354950] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 11:12:04,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [322217811] [2023-11-17 11:12:04,591 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-17 11:12:04,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:12:04,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:12:04,592 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 11:12:04,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-17 11:12:04,822 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-17 11:12:04,822 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 11:12:04,825 INFO L262 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-17 11:12:04,826 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 11:12:04,858 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:12:04,859 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 11:12:05,059 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:12:05,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [322217811] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 11:12:05,060 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 11:12:05,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2023-11-17 11:12:05,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156868888] [2023-11-17 11:12:05,061 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 11:12:05,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-17 11:12:05,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:12:05,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-17 11:12:05,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2023-11-17 11:12:05,066 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 66 [2023-11-17 11:12:05,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 29 transitions, 163 flow. Second operand has 25 states, 25 states have (on average 9.48) internal successors, (237), 25 states have internal predecessors, (237), 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 11:12:05,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:12:05,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 66 [2023-11-17 11:12:05,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:12:05,292 INFO L124 PetriNetUnfolderBase]: 122/263 cut-off events. [2023-11-17 11:12:05,292 INFO L125 PetriNetUnfolderBase]: For 1938/1938 co-relation queries the response was YES. [2023-11-17 11:12:05,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 946 conditions, 263 events. 122/263 cut-off events. For 1938/1938 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 562 event pairs, 40 based on Foata normal form. 48/299 useless extension candidates. Maximal degree in co-relation 929. Up to 110 conditions per place. [2023-11-17 11:12:05,295 INFO L140 encePairwiseOnDemand]: 63/66 looper letters, 84 selfloop transitions, 23 changer transitions 0/107 dead transitions. [2023-11-17 11:12:05,295 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 107 transitions, 649 flow [2023-11-17 11:12:05,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-17 11:12:05,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-11-17 11:12:05,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 311 transitions. [2023-11-17 11:12:05,300 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.19633838383838384 [2023-11-17 11:12:05,300 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 311 transitions. [2023-11-17 11:12:05,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 311 transitions. [2023-11-17 11:12:05,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:12:05,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 311 transitions. [2023-11-17 11:12:05,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 12.958333333333334) internal successors, (311), 24 states have internal predecessors, (311), 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 11:12:05,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 66.0) internal successors, (1650), 25 states have internal predecessors, (1650), 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 11:12:05,306 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 66.0) internal successors, (1650), 25 states have internal predecessors, (1650), 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 11:12:05,306 INFO L175 Difference]: Start difference. First operand has 49 places, 29 transitions, 163 flow. Second operand 24 states and 311 transitions. [2023-11-17 11:12:05,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 107 transitions, 649 flow [2023-11-17 11:12:05,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 107 transitions, 577 flow, removed 31 selfloop flow, removed 5 redundant places. [2023-11-17 11:12:05,312 INFO L231 Difference]: Finished difference. Result has 79 places, 41 transitions, 283 flow [2023-11-17 11:12:05,313 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=283, PETRI_PLACES=79, PETRI_TRANSITIONS=41} [2023-11-17 11:12:05,314 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 52 predicate places. [2023-11-17 11:12:05,314 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 41 transitions, 283 flow [2023-11-17 11:12:05,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 9.48) internal successors, (237), 25 states have internal predecessors, (237), 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 11:12:05,314 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:12:05,314 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:12:05,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-17 11:12:05,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:12:05,522 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 11:12:05,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:12:05,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1361281357, now seen corresponding path program 3 times [2023-11-17 11:12:05,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:12:05,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897064432] [2023-11-17 11:12:05,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:12:05,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:12:05,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:12:06,272 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:12:06,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:12:06,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897064432] [2023-11-17 11:12:06,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897064432] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 11:12:06,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1878801853] [2023-11-17 11:12:06,273 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-17 11:12:06,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 11:12:06,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:12:06,274 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 11:12:06,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process Received shutdown request... [2023-11-17 11:21:44,712 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-11-17 11:21:44,712 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-11-17 11:21:45,737 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 [2023-11-17 11:21:45,913 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forcibly destroying the process [2023-11-17 11:21:45,940 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 137 [2023-11-17 11:21:45,941 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-17 11:21:45,942 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-17 11:21:45,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2023-11-17 11:21:45,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612686542] [2023-11-17 11:21:45,942 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-17 11:21:45,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-17 11:21:45,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:21:45,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-17 11:21:45,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2023-11-17 11:21:45,944 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 66 [2023-11-17 11:21:45,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 41 transitions, 283 flow. Second operand has 25 states, 25 states have (on average 9.36) internal successors, (234), 25 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 11:21:45,944 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:21:45,944 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 66 [2023-11-17 11:21:45,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:21:45,959 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t2Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-11-17 11:21:45,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-17 11:21:45,959 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-11-17 11:21:45,961 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-11-17 11:21:45,961 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-11-17 11:21:45,961 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-11-17 11:21:45,961 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2023-11-17 11:21:45,961 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1] [2023-11-17 11:21:45,982 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-17 11:21:45,982 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-17 11:21:45,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 11:21:45 BasicIcfg [2023-11-17 11:21:45,989 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-17 11:21:45,991 INFO L158 Benchmark]: Toolchain (without parser) took 587729.83ms. Allocated memory was 305.1MB in the beginning and 367.0MB in the end (delta: 61.9MB). Free memory was 253.5MB in the beginning and 311.8MB in the end (delta: -58.3MB). Peak memory consumption was 3.9MB. Max. memory is 8.0GB. [2023-11-17 11:21:45,991 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 223.3MB. Free memory is still 176.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-17 11:21:45,991 INFO L158 Benchmark]: CACSL2BoogieTranslator took 595.03ms. Allocated memory is still 305.1MB. Free memory was 253.2MB in the beginning and 223.1MB in the end (delta: 30.1MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. [2023-11-17 11:21:45,991 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.45ms. Allocated memory is still 305.1MB. Free memory was 223.1MB in the beginning and 220.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-11-17 11:21:45,991 INFO L158 Benchmark]: Boogie Preprocessor took 39.37ms. Allocated memory is still 305.1MB. Free memory was 220.0MB in the beginning and 217.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-11-17 11:21:45,992 INFO L158 Benchmark]: RCFGBuilder took 696.00ms. Allocated memory is still 305.1MB. Free memory was 217.9MB in the beginning and 215.1MB in the end (delta: 2.7MB). Peak memory consumption was 4.6MB. Max. memory is 8.0GB. [2023-11-17 11:21:45,993 INFO L158 Benchmark]: TraceAbstraction took 586327.20ms. Allocated memory was 305.1MB in the beginning and 367.0MB in the end (delta: 61.9MB). Free memory was 214.1MB in the beginning and 311.8MB in the end (delta: -97.7MB). There was no memory consumed. Max. memory is 8.0GB. [2023-11-17 11:21:45,994 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 223.3MB. Free memory is still 176.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 595.03ms. Allocated memory is still 305.1MB. Free memory was 253.2MB in the beginning and 223.1MB in the end (delta: 30.1MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 67.45ms. Allocated memory is still 305.1MB. Free memory was 223.1MB in the beginning and 220.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 39.37ms. Allocated memory is still 305.1MB. Free memory was 220.0MB in the beginning and 217.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 696.00ms. Allocated memory is still 305.1MB. Free memory was 217.9MB in the beginning and 215.1MB in the end (delta: 2.7MB). Peak memory consumption was 4.6MB. Max. memory is 8.0GB. * TraceAbstraction took 586327.20ms. Allocated memory was 305.1MB in the beginning and 367.0MB in the end (delta: 61.9MB). Free memory was 214.1MB in the beginning and 311.8MB in the end (delta: -97.7MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 37 PlacesBefore, 27 PlacesAfterwards, 37 TransitionsBefore, 25 TransitionsAfterwards, 438 CoEnabledTransitionPairs, 3 FixpointIterations, 5 TrivialSequentialCompositions, 13 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 3 ConcurrentYvCompositions, 2 ChoiceCompositions, 25 TotalNumberOfCompositions, 1210 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 738, independent: 667, independent conditional: 0, independent unconditional: 667, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 309, independent: 284, independent conditional: 0, independent unconditional: 284, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 309, independent: 277, independent conditional: 0, independent unconditional: 277, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 32, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , SemanticIndependenceRelation.Query Time [ms]: [ total: 202, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 149, dependent conditional: 0, dependent unconditional: 149, unknown: 46, unknown conditional: 0, unknown unconditional: 46] ], Cache Queries: [ total: 738, independent: 383, independent conditional: 0, independent unconditional: 383, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 313, unknown conditional: 0, unknown unconditional: 313] , Statistics on independence cache: Total cache size (in pairs): 110, Positive cache size: 100, Positive conditional cache size: 0, Positive unconditional cache size: 100, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 2, Unknown conditional cache size: 0, Unknown unconditional cache size: 2 - TimeoutResultAtElement [Line: 1033]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1049]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1052]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1053]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 58 locations, 5 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: 586.2s, OverallIterations: 8, TraceHistogramMax: 22, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 285 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 285 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 466 IncrementalHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 0 mSDtfsCounter, 466 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=283occurred in iteration=7, InterpolantAutomatonStates: 53, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 205 ConstructedInterpolants, 0 QuantifiedInterpolants, 443 SizeOfPredicates, 0 NumberOfNonLiveVariables, 912 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 14 InterpolantComputations, 4 PerfectInterpolantSequences, 10/461 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown