/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.pointer.base.address.is.valid.at.dereference ASSERTandASSUME --cacsl2boogietranslator.pointer.to.allocated.memory.at.dereference ASSERTandASSUME --cacsl2boogietranslator.check.array.bounds.for.arrays.that.are.off.heap ASSERTandASSUME --cacsl2boogietranslator.check.if.freed.pointer.was.valid true --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true -i ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_11-equ_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 04:57:12,621 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 04:57:12,680 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-NoLbe.epf [2023-11-30 04:57:12,700 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 04:57:12,700 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 04:57:12,700 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 04:57:12,701 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 04:57:12,701 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 04:57:12,701 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 04:57:12,701 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 04:57:12,702 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 04:57:12,702 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 04:57:12,702 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 04:57:12,702 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 04:57:12,703 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 04:57:12,703 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 04:57:12,703 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 04:57:12,703 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 04:57:12,703 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 04:57:12,704 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 04:57:12,704 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 04:57:12,707 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 04:57:12,707 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 04:57:12,707 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 04:57:12,709 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 04:57:12,710 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 04:57:12,710 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 04:57:12,711 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 04:57:12,711 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 04:57:12,711 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 04:57:12,712 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 04:57:12,712 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 04:57:12,712 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 04:57:12,712 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer base address is valid at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer to allocated memory at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check array bounds for arrays that are off heap -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check if freed pointer was valid -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2023-11-30 04:57:12,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 04:57:12,904 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 04:57:12,905 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 04:57:12,906 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 04:57:12,908 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 04:57:12,909 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_11-equ_nr.i [2023-11-30 04:57:13,856 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 04:57:14,067 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 04:57:14,068 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_11-equ_nr.i [2023-11-30 04:57:14,084 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77afcf95d/93648df7151a41d3b0805857c6e37233/FLAG8651616a0 [2023-11-30 04:57:14,095 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77afcf95d/93648df7151a41d3b0805857c6e37233 [2023-11-30 04:57:14,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 04:57:14,098 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 04:57:14,101 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 04:57:14,101 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 04:57:14,104 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 04:57:14,105 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 04:57:14" (1/1) ... [2023-11-30 04:57:14,107 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f1a1966 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:57:14, skipping insertion in model container [2023-11-30 04:57:14,108 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 04:57:14" (1/1) ... [2023-11-30 04:57:14,146 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 04:57:14,467 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 04:57:14,477 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 04:57:14,512 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 04:57:14,554 INFO L206 MainTranslator]: Completed translation [2023-11-30 04:57:14,554 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:57:14 WrapperNode [2023-11-30 04:57:14,554 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 04:57:14,555 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 04:57:14,555 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 04:57:14,555 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 04:57:14,560 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:57:14" (1/1) ... [2023-11-30 04:57:14,569 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:57:14" (1/1) ... [2023-11-30 04:57:14,583 INFO L138 Inliner]: procedures = 266, calls = 31, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 67 [2023-11-30 04:57:14,584 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 04:57:14,584 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 04:57:14,584 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 04:57:14,585 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 04:57:14,591 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:57:14" (1/1) ... [2023-11-30 04:57:14,591 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:57:14" (1/1) ... [2023-11-30 04:57:14,594 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:57:14" (1/1) ... [2023-11-30 04:57:14,594 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:57:14" (1/1) ... [2023-11-30 04:57:14,599 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:57:14" (1/1) ... [2023-11-30 04:57:14,600 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:57:14" (1/1) ... [2023-11-30 04:57:14,601 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:57:14" (1/1) ... [2023-11-30 04:57:14,602 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:57:14" (1/1) ... [2023-11-30 04:57:14,603 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 04:57:14,604 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 04:57:14,604 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 04:57:14,604 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 04:57:14,604 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:57:14" (1/1) ... [2023-11-30 04:57:14,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 04:57:14,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 04:57:14,645 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) [2023-11-30 04:57:14,665 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 [2023-11-30 04:57:14,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 04:57:14,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 04:57:14,670 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-30 04:57:14,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 04:57:14,670 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-30 04:57:14,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 04:57:14,671 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-30 04:57:14,671 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-30 04:57:14,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 04:57:14,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 04:57:14,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 04:57:14,672 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-30 04:57:14,785 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 04:57:14,786 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 04:57:14,896 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 04:57:14,917 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 04:57:14,917 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-30 04:57:14,918 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 04:57:14 BoogieIcfgContainer [2023-11-30 04:57:14,918 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 04:57:14,920 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 04:57:14,920 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 04:57:14,922 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 04:57:14,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 04:57:14" (1/3) ... [2023-11-30 04:57:14,922 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c0a1a4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 04:57:14, skipping insertion in model container [2023-11-30 04:57:14,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 04:57:14" (2/3) ... [2023-11-30 04:57:14,923 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c0a1a4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 04:57:14, skipping insertion in model container [2023-11-30 04:57:14,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 04:57:14" (3/3) ... [2023-11-30 04:57:14,924 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_11-equ_nr.i [2023-11-30 04:57:14,935 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 04:57:14,935 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-30 04:57:14,935 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 04:57:14,976 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-30 04:57:15,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 81 transitions, 166 flow [2023-11-30 04:57:15,029 INFO L124 PetriNetUnfolderBase]: 1/83 cut-off events. [2023-11-30 04:57:15,029 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 04:57:15,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 83 events. 1/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 59 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2023-11-30 04:57:15,032 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 81 transitions, 166 flow [2023-11-30 04:57:15,035 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 78 transitions, 159 flow [2023-11-30 04:57:15,041 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 04:57:15,046 INFO L362 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=true, 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;@39be79ed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 04:57:15,046 INFO L363 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-11-30 04:57:15,056 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 04:57:15,056 INFO L124 PetriNetUnfolderBase]: 1/50 cut-off events. [2023-11-30 04:57:15,056 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 04:57:15,057 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:57:15,057 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 04:57:15,058 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] === [2023-11-30 04:57:15,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:57:15,061 INFO L85 PathProgramCache]: Analyzing trace with hash -2059098200, now seen corresponding path program 1 times [2023-11-30 04:57:15,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:57:15,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721008704] [2023-11-30 04:57:15,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:57:15,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:57:15,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:57:15,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 04:57:15,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:57:15,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721008704] [2023-11-30 04:57:15,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721008704] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:57:15,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:57:15,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:57:15,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406538381] [2023-11-30 04:57:15,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:57:15,350 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:57:15,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:57:15,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:57:15,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:57:15,379 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 81 [2023-11-30 04:57:15,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 78 transitions, 159 flow. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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) [2023-11-30 04:57:15,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:57:15,381 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 81 [2023-11-30 04:57:15,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:57:15,473 INFO L124 PetriNetUnfolderBase]: 29/164 cut-off events. [2023-11-30 04:57:15,473 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 04:57:15,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244 conditions, 164 events. 29/164 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 462 event pairs, 16 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 179. Up to 44 conditions per place. [2023-11-30 04:57:15,479 INFO L140 encePairwiseOnDemand]: 78/81 looper letters, 19 selfloop transitions, 2 changer transitions 2/81 dead transitions. [2023-11-30 04:57:15,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 81 transitions, 211 flow [2023-11-30 04:57:15,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:57:15,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:57:15,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 207 transitions. [2023-11-30 04:57:15,492 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8518518518518519 [2023-11-30 04:57:15,493 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 207 transitions. [2023-11-30 04:57:15,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 207 transitions. [2023-11-30 04:57:15,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:57:15,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 207 transitions. [2023-11-30 04:57:15,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 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) [2023-11-30 04:57:15,504 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 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) [2023-11-30 04:57:15,505 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 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) [2023-11-30 04:57:15,508 INFO L307 CegarLoopForPetriNet]: 81 programPoint places, 1 predicate places. [2023-11-30 04:57:15,508 INFO L500 AbstractCegarLoop]: Abstraction has has 82 places, 81 transitions, 211 flow [2023-11-30 04:57:15,508 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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) [2023-11-30 04:57:15,509 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:57:15,509 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 04:57:15,509 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 04:57:15,509 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] === [2023-11-30 04:57:15,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:57:15,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1933066091, now seen corresponding path program 1 times [2023-11-30 04:57:15,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:57:15,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410047165] [2023-11-30 04:57:15,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:57:15,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:57:15,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:57:15,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 04:57:15,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:57:15,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410047165] [2023-11-30 04:57:15,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410047165] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:57:15,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:57:15,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 04:57:15,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688257711] [2023-11-30 04:57:15,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:57:15,686 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 04:57:15,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:57:15,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 04:57:15,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 04:57:15,688 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 81 [2023-11-30 04:57:15,688 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 81 transitions, 211 flow. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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) [2023-11-30 04:57:15,688 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:57:15,688 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 81 [2023-11-30 04:57:15,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:57:15,767 INFO L124 PetriNetUnfolderBase]: 39/190 cut-off events. [2023-11-30 04:57:15,767 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2023-11-30 04:57:15,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 363 conditions, 190 events. 39/190 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 647 event pairs, 24 based on Foata normal form. 0/189 useless extension candidates. Maximal degree in co-relation 293. Up to 60 conditions per place. [2023-11-30 04:57:15,769 INFO L140 encePairwiseOnDemand]: 78/81 looper letters, 18 selfloop transitions, 2 changer transitions 4/84 dead transitions. [2023-11-30 04:57:15,769 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 84 transitions, 269 flow [2023-11-30 04:57:15,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 04:57:15,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 04:57:15,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 208 transitions. [2023-11-30 04:57:15,774 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8559670781893004 [2023-11-30 04:57:15,774 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 208 transitions. [2023-11-30 04:57:15,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 208 transitions. [2023-11-30 04:57:15,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:57:15,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 208 transitions. [2023-11-30 04:57:15,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 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) [2023-11-30 04:57:15,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 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) [2023-11-30 04:57:15,776 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 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) [2023-11-30 04:57:15,776 INFO L307 CegarLoopForPetriNet]: 81 programPoint places, 2 predicate places. [2023-11-30 04:57:15,776 INFO L500 AbstractCegarLoop]: Abstraction has has 83 places, 84 transitions, 269 flow [2023-11-30 04:57:15,777 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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) [2023-11-30 04:57:15,777 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:57:15,777 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 04:57:15,777 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 04:57:15,777 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] === [2023-11-30 04:57:15,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:57:15,777 INFO L85 PathProgramCache]: Analyzing trace with hash 625749, now seen corresponding path program 1 times [2023-11-30 04:57:15,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:57:15,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674223590] [2023-11-30 04:57:15,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:57:15,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:57:15,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:57:16,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 04:57:16,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:57:16,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674223590] [2023-11-30 04:57:16,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674223590] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:57:16,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:57:16,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 04:57:16,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397172349] [2023-11-30 04:57:16,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:57:16,032 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 04:57:16,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:57:16,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 04:57:16,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-30 04:57:16,033 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 81 [2023-11-30 04:57:16,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 84 transitions, 269 flow. Second operand has 6 states, 6 states have (on average 57.166666666666664) internal successors, (343), 6 states have internal predecessors, (343), 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) [2023-11-30 04:57:16,036 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:57:16,036 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 81 [2023-11-30 04:57:16,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:57:16,093 INFO L124 PetriNetUnfolderBase]: 33/171 cut-off events. [2023-11-30 04:57:16,093 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-11-30 04:57:16,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 397 conditions, 171 events. 33/171 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 525 event pairs, 20 based on Foata normal form. 9/179 useless extension candidates. Maximal degree in co-relation 309. Up to 71 conditions per place. [2023-11-30 04:57:16,096 INFO L140 encePairwiseOnDemand]: 77/81 looper letters, 25 selfloop transitions, 3 changer transitions 4/82 dead transitions. [2023-11-30 04:57:16,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 82 transitions, 325 flow [2023-11-30 04:57:16,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 04:57:16,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 04:57:16,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 296 transitions. [2023-11-30 04:57:16,101 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7308641975308642 [2023-11-30 04:57:16,101 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 296 transitions. [2023-11-30 04:57:16,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 296 transitions. [2023-11-30 04:57:16,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:57:16,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 296 transitions. [2023-11-30 04:57:16,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 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) [2023-11-30 04:57:16,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 81.0) internal successors, (486), 6 states have internal predecessors, (486), 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) [2023-11-30 04:57:16,105 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 81.0) internal successors, (486), 6 states have internal predecessors, (486), 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) [2023-11-30 04:57:16,106 INFO L307 CegarLoopForPetriNet]: 81 programPoint places, 5 predicate places. [2023-11-30 04:57:16,106 INFO L500 AbstractCegarLoop]: Abstraction has has 86 places, 82 transitions, 325 flow [2023-11-30 04:57:16,106 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 57.166666666666664) internal successors, (343), 6 states have internal predecessors, (343), 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) [2023-11-30 04:57:16,106 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:57:16,107 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 04:57:16,107 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 04:57:16,107 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] === [2023-11-30 04:57:16,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:57:16,108 INFO L85 PathProgramCache]: Analyzing trace with hash 625748, now seen corresponding path program 1 times [2023-11-30 04:57:16,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:57:16,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080760544] [2023-11-30 04:57:16,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:57:16,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:57:16,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:57:16,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 04:57:16,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:57:16,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080760544] [2023-11-30 04:57:16,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080760544] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:57:16,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:57:16,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 04:57:16,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577280363] [2023-11-30 04:57:16,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:57:16,258 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 04:57:16,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:57:16,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 04:57:16,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-30 04:57:16,260 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 81 [2023-11-30 04:57:16,261 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 82 transitions, 325 flow. Second operand has 6 states, 6 states have (on average 55.333333333333336) internal successors, (332), 6 states have internal predecessors, (332), 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) [2023-11-30 04:57:16,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:57:16,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 81 [2023-11-30 04:57:16,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:57:16,325 INFO L124 PetriNetUnfolderBase]: 28/169 cut-off events. [2023-11-30 04:57:16,325 INFO L125 PetriNetUnfolderBase]: For 142/142 co-relation queries the response was YES. [2023-11-30 04:57:16,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 458 conditions, 169 events. 28/169 cut-off events. For 142/142 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 494 event pairs, 17 based on Foata normal form. 6/174 useless extension candidates. Maximal degree in co-relation 351. Up to 64 conditions per place. [2023-11-30 04:57:16,326 INFO L140 encePairwiseOnDemand]: 75/81 looper letters, 25 selfloop transitions, 4 changer transitions 6/83 dead transitions. [2023-11-30 04:57:16,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 83 transitions, 405 flow [2023-11-30 04:57:16,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 04:57:16,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 04:57:16,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 344 transitions. [2023-11-30 04:57:16,328 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7078189300411523 [2023-11-30 04:57:16,328 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 344 transitions. [2023-11-30 04:57:16,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 344 transitions. [2023-11-30 04:57:16,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:57:16,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 344 transitions. [2023-11-30 04:57:16,329 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 57.333333333333336) internal successors, (344), 6 states have internal predecessors, (344), 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) [2023-11-30 04:57:16,330 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 81.0) internal successors, (567), 7 states have internal predecessors, (567), 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) [2023-11-30 04:57:16,330 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 81.0) internal successors, (567), 7 states have internal predecessors, (567), 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) [2023-11-30 04:57:16,331 INFO L307 CegarLoopForPetriNet]: 81 programPoint places, 10 predicate places. [2023-11-30 04:57:16,332 INFO L500 AbstractCegarLoop]: Abstraction has has 91 places, 83 transitions, 405 flow [2023-11-30 04:57:16,332 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.333333333333336) internal successors, (332), 6 states have internal predecessors, (332), 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) [2023-11-30 04:57:16,332 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:57:16,332 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 04:57:16,332 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-30 04:57:16,333 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] === [2023-11-30 04:57:16,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:57:16,334 INFO L85 PathProgramCache]: Analyzing trace with hash -26652603, now seen corresponding path program 1 times [2023-11-30 04:57:16,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:57:16,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996330976] [2023-11-30 04:57:16,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:57:16,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:57:16,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:57:16,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 04:57:16,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:57:16,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996330976] [2023-11-30 04:57:16,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996330976] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:57:16,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:57:16,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 04:57:16,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402709690] [2023-11-30 04:57:16,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:57:16,512 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 04:57:16,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:57:16,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 04:57:16,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-30 04:57:16,513 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 81 [2023-11-30 04:57:16,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 83 transitions, 405 flow. Second operand has 8 states, 8 states have (on average 45.125) internal successors, (361), 8 states have internal predecessors, (361), 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) [2023-11-30 04:57:16,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:57:16,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 81 [2023-11-30 04:57:16,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:57:16,653 INFO L124 PetriNetUnfolderBase]: 45/242 cut-off events. [2023-11-30 04:57:16,653 INFO L125 PetriNetUnfolderBase]: For 304/304 co-relation queries the response was YES. [2023-11-30 04:57:16,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 824 conditions, 242 events. 45/242 cut-off events. For 304/304 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 948 event pairs, 21 based on Foata normal form. 8/249 useless extension candidates. Maximal degree in co-relation 361. Up to 98 conditions per place. [2023-11-30 04:57:16,655 INFO L140 encePairwiseOnDemand]: 70/81 looper letters, 33 selfloop transitions, 6 changer transitions 28/102 dead transitions. [2023-11-30 04:57:16,655 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 102 transitions, 700 flow [2023-11-30 04:57:16,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-30 04:57:16,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-30 04:57:16,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 439 transitions. [2023-11-30 04:57:16,656 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6021947873799726 [2023-11-30 04:57:16,656 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 439 transitions. [2023-11-30 04:57:16,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 439 transitions. [2023-11-30 04:57:16,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:57:16,657 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 439 transitions. [2023-11-30 04:57:16,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 48.77777777777778) internal successors, (439), 9 states have internal predecessors, (439), 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) [2023-11-30 04:57:16,659 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 81.0) internal successors, (810), 10 states have internal predecessors, (810), 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) [2023-11-30 04:57:16,659 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 81.0) internal successors, (810), 10 states have internal predecessors, (810), 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) [2023-11-30 04:57:16,659 INFO L307 CegarLoopForPetriNet]: 81 programPoint places, 17 predicate places. [2023-11-30 04:57:16,659 INFO L500 AbstractCegarLoop]: Abstraction has has 98 places, 102 transitions, 700 flow [2023-11-30 04:57:16,660 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 45.125) internal successors, (361), 8 states have internal predecessors, (361), 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) [2023-11-30 04:57:16,660 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:57:16,660 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 04:57:16,660 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-30 04:57:16,660 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] === [2023-11-30 04:57:16,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:57:16,660 INFO L85 PathProgramCache]: Analyzing trace with hash -26652602, now seen corresponding path program 1 times [2023-11-30 04:57:16,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:57:16,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61969732] [2023-11-30 04:57:16,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:57:16,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:57:16,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:57:16,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 04:57:16,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:57:16,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61969732] [2023-11-30 04:57:16,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61969732] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:57:16,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:57:16,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 04:57:16,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998763217] [2023-11-30 04:57:16,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:57:16,896 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 04:57:16,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:57:16,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 04:57:16,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-30 04:57:16,897 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 81 [2023-11-30 04:57:16,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 102 transitions, 700 flow. Second operand has 8 states, 8 states have (on average 46.0) internal successors, (368), 8 states have internal predecessors, (368), 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) [2023-11-30 04:57:16,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:57:16,897 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 81 [2023-11-30 04:57:16,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:57:17,032 INFO L124 PetriNetUnfolderBase]: 46/247 cut-off events. [2023-11-30 04:57:17,033 INFO L125 PetriNetUnfolderBase]: For 477/477 co-relation queries the response was YES. [2023-11-30 04:57:17,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 982 conditions, 247 events. 46/247 cut-off events. For 477/477 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 976 event pairs, 18 based on Foata normal form. 4/250 useless extension candidates. Maximal degree in co-relation 427. Up to 95 conditions per place. [2023-11-30 04:57:17,035 INFO L140 encePairwiseOnDemand]: 72/81 looper letters, 24 selfloop transitions, 4 changer transitions 46/106 dead transitions. [2023-11-30 04:57:17,035 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 106 transitions, 880 flow [2023-11-30 04:57:17,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-30 04:57:17,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-30 04:57:17,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 441 transitions. [2023-11-30 04:57:17,037 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6049382716049383 [2023-11-30 04:57:17,037 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 441 transitions. [2023-11-30 04:57:17,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 441 transitions. [2023-11-30 04:57:17,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:57:17,037 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 441 transitions. [2023-11-30 04:57:17,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 49.0) internal successors, (441), 9 states have internal predecessors, (441), 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) [2023-11-30 04:57:17,039 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 81.0) internal successors, (810), 10 states have internal predecessors, (810), 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) [2023-11-30 04:57:17,039 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 81.0) internal successors, (810), 10 states have internal predecessors, (810), 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) [2023-11-30 04:57:17,041 INFO L307 CegarLoopForPetriNet]: 81 programPoint places, 25 predicate places. [2023-11-30 04:57:17,041 INFO L500 AbstractCegarLoop]: Abstraction has has 106 places, 106 transitions, 880 flow [2023-11-30 04:57:17,042 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 46.0) internal successors, (368), 8 states have internal predecessors, (368), 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) [2023-11-30 04:57:17,042 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:57:17,042 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 04:57:17,042 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-30 04:57:17,042 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] === [2023-11-30 04:57:17,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:57:17,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1957062567, now seen corresponding path program 1 times [2023-11-30 04:57:17,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:57:17,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907439045] [2023-11-30 04:57:17,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:57:17,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:57:17,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:57:17,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 04:57:17,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:57:17,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907439045] [2023-11-30 04:57:17,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907439045] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:57:17,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:57:17,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 04:57:17,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046588060] [2023-11-30 04:57:17,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:57:17,186 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 04:57:17,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:57:17,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 04:57:17,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-30 04:57:17,187 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 81 [2023-11-30 04:57:17,187 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 106 transitions, 880 flow. Second operand has 8 states, 8 states have (on average 47.0) internal successors, (376), 8 states have internal predecessors, (376), 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) [2023-11-30 04:57:17,187 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:57:17,187 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 81 [2023-11-30 04:57:17,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:57:17,334 INFO L124 PetriNetUnfolderBase]: 43/232 cut-off events. [2023-11-30 04:57:17,334 INFO L125 PetriNetUnfolderBase]: For 636/636 co-relation queries the response was YES. [2023-11-30 04:57:17,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1068 conditions, 232 events. 43/232 cut-off events. For 636/636 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 861 event pairs, 9 based on Foata normal form. 4/235 useless extension candidates. Maximal degree in co-relation 437. Up to 92 conditions per place. [2023-11-30 04:57:17,335 INFO L140 encePairwiseOnDemand]: 73/81 looper letters, 23 selfloop transitions, 4 changer transitions 49/108 dead transitions. [2023-11-30 04:57:17,335 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 108 transitions, 1048 flow [2023-11-30 04:57:17,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-30 04:57:17,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-30 04:57:17,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 454 transitions. [2023-11-30 04:57:17,337 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6227709190672154 [2023-11-30 04:57:17,337 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 454 transitions. [2023-11-30 04:57:17,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 454 transitions. [2023-11-30 04:57:17,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:57:17,337 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 454 transitions. [2023-11-30 04:57:17,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 50.44444444444444) internal successors, (454), 9 states have internal predecessors, (454), 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) [2023-11-30 04:57:17,339 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 81.0) internal successors, (810), 10 states have internal predecessors, (810), 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) [2023-11-30 04:57:17,339 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 81.0) internal successors, (810), 10 states have internal predecessors, (810), 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) [2023-11-30 04:57:17,339 INFO L307 CegarLoopForPetriNet]: 81 programPoint places, 32 predicate places. [2023-11-30 04:57:17,340 INFO L500 AbstractCegarLoop]: Abstraction has has 113 places, 108 transitions, 1048 flow [2023-11-30 04:57:17,340 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 47.0) internal successors, (376), 8 states have internal predecessors, (376), 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) [2023-11-30 04:57:17,340 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 04:57:17,340 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 04:57:17,340 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-30 04:57:17,341 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] === [2023-11-30 04:57:17,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 04:57:17,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1957062566, now seen corresponding path program 1 times [2023-11-30 04:57:17,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 04:57:17,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742200613] [2023-11-30 04:57:17,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 04:57:17,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 04:57:17,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 04:57:17,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 04:57:17,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 04:57:17,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742200613] [2023-11-30 04:57:17,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742200613] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 04:57:17,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 04:57:17,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 04:57:17,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131433032] [2023-11-30 04:57:17,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 04:57:17,501 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 04:57:17,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 04:57:17,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 04:57:17,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-30 04:57:17,502 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 81 [2023-11-30 04:57:17,502 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 108 transitions, 1048 flow. Second operand has 8 states, 8 states have (on average 46.0) internal successors, (368), 8 states have internal predecessors, (368), 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) [2023-11-30 04:57:17,502 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 04:57:17,502 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 81 [2023-11-30 04:57:17,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 04:57:17,630 INFO L124 PetriNetUnfolderBase]: 40/221 cut-off events. [2023-11-30 04:57:17,630 INFO L125 PetriNetUnfolderBase]: For 832/832 co-relation queries the response was YES. [2023-11-30 04:57:17,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1144 conditions, 221 events. 40/221 cut-off events. For 832/832 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 785 event pairs, 6 based on Foata normal form. 4/224 useless extension candidates. Maximal degree in co-relation 475. Up to 85 conditions per place. [2023-11-30 04:57:17,631 INFO L140 encePairwiseOnDemand]: 73/81 looper letters, 0 selfloop transitions, 0 changer transitions 111/111 dead transitions. [2023-11-30 04:57:17,631 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 111 transitions, 1242 flow [2023-11-30 04:57:17,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-30 04:57:17,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-30 04:57:17,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 396 transitions. [2023-11-30 04:57:17,632 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2023-11-30 04:57:17,632 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 396 transitions. [2023-11-30 04:57:17,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 396 transitions. [2023-11-30 04:57:17,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 04:57:17,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 396 transitions. [2023-11-30 04:57:17,634 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 49.5) internal successors, (396), 8 states have internal predecessors, (396), 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) [2023-11-30 04:57:17,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 81.0) internal successors, (729), 9 states have internal predecessors, (729), 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) [2023-11-30 04:57:17,635 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 81.0) internal successors, (729), 9 states have internal predecessors, (729), 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) [2023-11-30 04:57:17,635 INFO L307 CegarLoopForPetriNet]: 81 programPoint places, 38 predicate places. [2023-11-30 04:57:17,635 INFO L500 AbstractCegarLoop]: Abstraction has has 119 places, 111 transitions, 1242 flow [2023-11-30 04:57:17,635 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 46.0) internal successors, (368), 8 states have internal predecessors, (368), 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) [2023-11-30 04:57:17,639 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/06-symbeq_11-equ_nr.i_BEv2_AllErrorsAtOnce [2023-11-30 04:57:17,658 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 9 remaining) [2023-11-30 04:57:17,658 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 9 remaining) [2023-11-30 04:57:17,659 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 9 remaining) [2023-11-30 04:57:17,659 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 9 remaining) [2023-11-30 04:57:17,659 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2023-11-30 04:57:17,659 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 9 remaining) [2023-11-30 04:57:17,659 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 9 remaining) [2023-11-30 04:57:17,659 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 9 remaining) [2023-11-30 04:57:17,659 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 9 remaining) [2023-11-30 04:57:17,659 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-30 04:57:17,660 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 04:57:17,663 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 04:57:17,663 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 04:57:17,668 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 04:57:17 BasicIcfg [2023-11-30 04:57:17,668 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 04:57:17,668 INFO L158 Benchmark]: Toolchain (without parser) took 3570.55ms. Allocated memory is still 455.1MB. Free memory was 412.8MB in the beginning and 219.3MB in the end (delta: 193.5MB). Peak memory consumption was 196.7MB. Max. memory is 16.0GB. [2023-11-30 04:57:17,668 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 343.9MB. Free memory is still 300.3MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 04:57:17,669 INFO L158 Benchmark]: CACSL2BoogieTranslator took 453.34ms. Allocated memory is still 455.1MB. Free memory was 412.8MB in the beginning and 385.0MB in the end (delta: 27.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. [2023-11-30 04:57:17,669 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.94ms. Allocated memory is still 455.1MB. Free memory was 385.0MB in the beginning and 382.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 04:57:17,669 INFO L158 Benchmark]: Boogie Preprocessor took 19.01ms. Allocated memory is still 455.1MB. Free memory was 382.3MB in the beginning and 380.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 04:57:17,669 INFO L158 Benchmark]: RCFGBuilder took 314.40ms. Allocated memory is still 455.1MB. Free memory was 380.8MB in the beginning and 365.2MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-11-30 04:57:17,669 INFO L158 Benchmark]: TraceAbstraction took 2748.11ms. Allocated memory is still 455.1MB. Free memory was 364.7MB in the beginning and 219.3MB in the end (delta: 145.4MB). Peak memory consumption was 148.4MB. Max. memory is 16.0GB. [2023-11-30 04:57:17,670 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 343.9MB. Free memory is still 300.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 453.34ms. Allocated memory is still 455.1MB. Free memory was 412.8MB in the beginning and 385.0MB in the end (delta: 27.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 28.94ms. Allocated memory is still 455.1MB. Free memory was 385.0MB in the beginning and 382.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 19.01ms. Allocated memory is still 455.1MB. Free memory was 382.3MB in the beginning and 380.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 314.40ms. Allocated memory is still 455.1MB. Free memory was 380.8MB in the beginning and 365.2MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 2748.11ms. Allocated memory is still 455.1MB. Free memory was 364.7MB in the beginning and 219.3MB in the end (delta: 145.4MB). Peak memory consumption was 148.4MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 92 locations, 9 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: 2.7s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 444 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 444 mSDsluCounter, 117 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 49 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 595 IncrementalHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 68 mSDtfsCounter, 595 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1242occurred in iteration=8, InterpolantAutomatonStates: 52, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 394 NumberOfCodeBlocks, 394 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 386 ConstructedInterpolants, 0 QuantifiedInterpolants, 3451 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-30 04:57:17,685 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...