/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 -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/09-regions_17-arrayloop_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-6bf5761-m [2023-12-05 21:12:27,441 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-05 21:12:27,527 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 [2023-12-05 21:12:27,558 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-05 21:12:27,559 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-05 21:12:27,559 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-05 21:12:27,560 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-05 21:12:27,560 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-05 21:12:27,560 INFO L153 SettingsManager]: * Use SBE=true [2023-12-05 21:12:27,564 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-05 21:12:27,564 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-05 21:12:27,564 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-05 21:12:27,564 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-05 21:12:27,565 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-05 21:12:27,566 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-05 21:12:27,566 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-05 21:12:27,566 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-05 21:12:27,566 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-05 21:12:27,566 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-05 21:12:27,567 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-05 21:12:27,567 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-05 21:12:27,567 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-05 21:12:27,568 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-05 21:12:27,568 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-05 21:12:27,568 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-05 21:12:27,568 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-05 21:12:27,568 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-05 21:12:27,569 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-05 21:12:27,569 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-05 21:12:27,569 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-05 21:12:27,570 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-05 21:12:27,570 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-05 21:12:27,570 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-05 21:12:27,571 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer base address is valid at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer to allocated memory at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check array bounds for arrays that are off heap -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check if freed pointer was valid -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2023-12-05 21:12:27,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-05 21:12:27,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-05 21:12:27,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-05 21:12:27,849 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-05 21:12:27,850 INFO L274 PluginConnector]: CDTParser initialized [2023-12-05 21:12:27,851 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_17-arrayloop_nr.i [2023-12-05 21:12:28,911 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-05 21:12:29,177 INFO L384 CDTParser]: Found 1 translation units. [2023-12-05 21:12:29,178 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_17-arrayloop_nr.i [2023-12-05 21:12:29,194 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed60487e0/f9400703c18446c98a191c767e0eb068/FLAG210f5587e [2023-12-05 21:12:29,206 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed60487e0/f9400703c18446c98a191c767e0eb068 [2023-12-05 21:12:29,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-05 21:12:29,210 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-05 21:12:29,211 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-05 21:12:29,211 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-05 21:12:29,215 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-05 21:12:29,215 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:12:29" (1/1) ... [2023-12-05 21:12:29,216 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e970f1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:12:29, skipping insertion in model container [2023-12-05 21:12:29,217 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:12:29" (1/1) ... [2023-12-05 21:12:29,262 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-05 21:12:29,722 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-05 21:12:29,737 INFO L202 MainTranslator]: Completed pre-run [2023-12-05 21:12:29,780 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-05 21:12:29,853 INFO L206 MainTranslator]: Completed translation [2023-12-05 21:12:29,853 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:12:29 WrapperNode [2023-12-05 21:12:29,853 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-05 21:12:29,854 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-05 21:12:29,855 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-05 21:12:29,855 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-05 21:12:29,860 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:12:29" (1/1) ... [2023-12-05 21:12:29,885 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:12:29" (1/1) ... [2023-12-05 21:12:29,908 INFO L138 Inliner]: procedures = 369, calls = 30, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 125 [2023-12-05 21:12:29,908 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-05 21:12:29,909 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-05 21:12:29,909 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-05 21:12:29,909 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-05 21:12:29,916 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:12:29" (1/1) ... [2023-12-05 21:12:29,916 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:12:29" (1/1) ... [2023-12-05 21:12:29,920 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:12:29" (1/1) ... [2023-12-05 21:12:29,920 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:12:29" (1/1) ... [2023-12-05 21:12:29,944 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:12:29" (1/1) ... [2023-12-05 21:12:29,947 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:12:29" (1/1) ... [2023-12-05 21:12:29,949 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:12:29" (1/1) ... [2023-12-05 21:12:29,950 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:12:29" (1/1) ... [2023-12-05 21:12:29,954 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-05 21:12:29,955 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-05 21:12:29,955 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-05 21:12:29,955 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-05 21:12:29,956 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:12:29" (1/1) ... [2023-12-05 21:12:29,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-05 21:12:29,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-05 21:12:29,983 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) [2023-12-05 21:12:29,993 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 [2023-12-05 21:12:30,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-05 21:12:30,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-05 21:12:30,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-05 21:12:30,020 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-12-05 21:12:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-05 21:12:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-05 21:12:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-12-05 21:12:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-05 21:12:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-05 21:12:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-05 21:12:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-12-05 21:12:30,021 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-12-05 21:12:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-05 21:12:30,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-05 21:12:30,023 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-05 21:12:30,164 INFO L241 CfgBuilder]: Building ICFG [2023-12-05 21:12:30,165 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-05 21:12:30,466 INFO L282 CfgBuilder]: Performing block encoding [2023-12-05 21:12:30,494 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-05 21:12:30,495 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-12-05 21:12:30,496 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:12:30 BoogieIcfgContainer [2023-12-05 21:12:30,496 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-05 21:12:30,498 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-05 21:12:30,498 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-05 21:12:30,501 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-05 21:12:30,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 09:12:29" (1/3) ... [2023-12-05 21:12:30,503 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fd8bcbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:12:30, skipping insertion in model container [2023-12-05 21:12:30,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:12:29" (2/3) ... [2023-12-05 21:12:30,503 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fd8bcbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:12:30, skipping insertion in model container [2023-12-05 21:12:30,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:12:30" (3/3) ... [2023-12-05 21:12:30,504 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_17-arrayloop_nr.i [2023-12-05 21:12:30,519 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-05 21:12:30,519 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 38 error locations. [2023-12-05 21:12:30,519 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-05 21:12:30,602 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-05 21:12:30,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 173 places, 175 transitions, 354 flow [2023-12-05 21:12:30,723 INFO L124 PetriNetUnfolderBase]: 6/174 cut-off events. [2023-12-05 21:12:30,723 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-05 21:12:30,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178 conditions, 174 events. 6/174 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 412 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 126. Up to 2 conditions per place. [2023-12-05 21:12:30,734 INFO L82 GeneralOperation]: Start removeDead. Operand has 173 places, 175 transitions, 354 flow [2023-12-05 21:12:30,745 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 172 places, 174 transitions, 351 flow [2023-12-05 21:12:30,757 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-05 21:12:30,769 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;@180d97e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-05 21:12:30,769 INFO L363 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2023-12-05 21:12:30,775 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-05 21:12:30,776 INFO L124 PetriNetUnfolderBase]: 1/23 cut-off events. [2023-12-05 21:12:30,776 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-05 21:12:30,776 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:12:30,777 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-05 21:12:30,778 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2023-12-05 21:12:30,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:12:30,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1802790074, now seen corresponding path program 1 times [2023-12-05 21:12:30,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:12:30,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762361391] [2023-12-05 21:12:30,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:12:30,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:12:30,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:12:31,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:12:31,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:12:31,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762361391] [2023-12-05 21:12:31,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762361391] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:12:31,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:12:31,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-05 21:12:31,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902224843] [2023-12-05 21:12:31,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:12:31,064 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:12:31,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:12:31,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:12:31,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:12:31,100 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 175 [2023-12-05 21:12:31,105 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 174 transitions, 351 flow. Second operand has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 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) [2023-12-05 21:12:31,105 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:12:31,106 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 175 [2023-12-05 21:12:31,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:12:31,341 INFO L124 PetriNetUnfolderBase]: 49/558 cut-off events. [2023-12-05 21:12:31,342 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-12-05 21:12:31,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 695 conditions, 558 events. 49/558 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2709 event pairs, 24 based on Foata normal form. 23/451 useless extension candidates. Maximal degree in co-relation 601. Up to 77 conditions per place. [2023-12-05 21:12:31,353 INFO L140 encePairwiseOnDemand]: 166/175 looper letters, 40 selfloop transitions, 4 changer transitions 0/189 dead transitions. [2023-12-05 21:12:31,353 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 189 transitions, 469 flow [2023-12-05 21:12:31,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:12:31,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:12:31,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 490 transitions. [2023-12-05 21:12:31,371 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.9333333333333333 [2023-12-05 21:12:31,372 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 490 transitions. [2023-12-05 21:12:31,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 490 transitions. [2023-12-05 21:12:31,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:12:31,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 490 transitions. [2023-12-05 21:12:31,380 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 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) [2023-12-05 21:12:31,384 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 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) [2023-12-05 21:12:31,385 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 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) [2023-12-05 21:12:31,388 INFO L308 CegarLoopForPetriNet]: 172 programPoint places, 2 predicate places. [2023-12-05 21:12:31,388 INFO L500 AbstractCegarLoop]: Abstraction has has 174 places, 189 transitions, 469 flow [2023-12-05 21:12:31,389 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 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) [2023-12-05 21:12:31,389 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:12:31,389 INFO L233 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] [2023-12-05 21:12:31,390 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-05 21:12:31,390 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2023-12-05 21:12:31,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:12:31,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1547325968, now seen corresponding path program 1 times [2023-12-05 21:12:31,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:12:31,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116881317] [2023-12-05 21:12:31,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:12:31,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:12:31,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:12:31,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:12:31,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:12:31,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116881317] [2023-12-05 21:12:31,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116881317] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:12:31,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:12:31,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-05 21:12:31,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063281373] [2023-12-05 21:12:31,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:12:31,546 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-05 21:12:31,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:12:31,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-05 21:12:31,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-05 21:12:31,548 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 175 [2023-12-05 21:12:31,548 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 189 transitions, 469 flow. Second operand has 4 states, 4 states have (on average 109.25) internal successors, (437), 4 states have internal predecessors, (437), 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) [2023-12-05 21:12:31,549 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:12:31,549 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 175 [2023-12-05 21:12:31,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:12:32,237 INFO L124 PetriNetUnfolderBase]: 841/2932 cut-off events. [2023-12-05 21:12:32,238 INFO L125 PetriNetUnfolderBase]: For 234/268 co-relation queries the response was YES. [2023-12-05 21:12:32,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5130 conditions, 2932 events. 841/2932 cut-off events. For 234/268 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 22651 event pairs, 535 based on Foata normal form. 13/2352 useless extension candidates. Maximal degree in co-relation 5008. Up to 1206 conditions per place. [2023-12-05 21:12:32,256 INFO L140 encePairwiseOnDemand]: 163/175 looper letters, 111 selfloop transitions, 8 changer transitions 0/236 dead transitions. [2023-12-05 21:12:32,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 236 transitions, 825 flow [2023-12-05 21:12:32,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-05 21:12:32,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-12-05 21:12:32,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 645 transitions. [2023-12-05 21:12:32,262 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7371428571428571 [2023-12-05 21:12:32,262 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 645 transitions. [2023-12-05 21:12:32,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 645 transitions. [2023-12-05 21:12:32,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:12:32,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 645 transitions. [2023-12-05 21:12:32,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 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) [2023-12-05 21:12:32,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 175.0) internal successors, (1050), 6 states have internal predecessors, (1050), 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) [2023-12-05 21:12:32,269 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 175.0) internal successors, (1050), 6 states have internal predecessors, (1050), 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) [2023-12-05 21:12:32,269 INFO L308 CegarLoopForPetriNet]: 172 programPoint places, 2 predicate places. [2023-12-05 21:12:32,270 INFO L500 AbstractCegarLoop]: Abstraction has has 174 places, 236 transitions, 825 flow [2023-12-05 21:12:32,270 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.25) internal successors, (437), 4 states have internal predecessors, (437), 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) [2023-12-05 21:12:32,270 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:12:32,270 INFO L233 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] [2023-12-05 21:12:32,270 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-05 21:12:32,271 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2023-12-05 21:12:32,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:12:32,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1547325967, now seen corresponding path program 1 times [2023-12-05 21:12:32,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:12:32,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330611213] [2023-12-05 21:12:32,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:12:32,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:12:32,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:12:32,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:12:32,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:12:32,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330611213] [2023-12-05 21:12:32,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330611213] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:12:32,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:12:32,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-05 21:12:32,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988060024] [2023-12-05 21:12:32,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:12:32,432 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-05 21:12:32,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:12:32,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-05 21:12:32,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-05 21:12:32,442 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 175 [2023-12-05 21:12:32,443 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 236 transitions, 825 flow. Second operand has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 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) [2023-12-05 21:12:32,443 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:12:32,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 175 [2023-12-05 21:12:32,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:12:33,214 INFO L124 PetriNetUnfolderBase]: 1266/3980 cut-off events. [2023-12-05 21:12:33,214 INFO L125 PetriNetUnfolderBase]: For 1528/1668 co-relation queries the response was YES. [2023-12-05 21:12:33,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8776 conditions, 3980 events. 1266/3980 cut-off events. For 1528/1668 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 31987 event pairs, 855 based on Foata normal form. 57/3958 useless extension candidates. Maximal degree in co-relation 8635. Up to 1599 conditions per place. [2023-12-05 21:12:33,244 INFO L140 encePairwiseOnDemand]: 163/175 looper letters, 108 selfloop transitions, 8 changer transitions 0/250 dead transitions. [2023-12-05 21:12:33,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 250 transitions, 1077 flow [2023-12-05 21:12:33,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-05 21:12:33,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-12-05 21:12:33,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 649 transitions. [2023-12-05 21:12:33,247 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7417142857142857 [2023-12-05 21:12:33,247 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 649 transitions. [2023-12-05 21:12:33,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 649 transitions. [2023-12-05 21:12:33,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:12:33,248 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 649 transitions. [2023-12-05 21:12:33,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 129.8) internal successors, (649), 5 states have internal predecessors, (649), 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) [2023-12-05 21:12:33,251 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 175.0) internal successors, (1050), 6 states have internal predecessors, (1050), 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) [2023-12-05 21:12:33,252 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 175.0) internal successors, (1050), 6 states have internal predecessors, (1050), 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) [2023-12-05 21:12:33,253 INFO L308 CegarLoopForPetriNet]: 172 programPoint places, 2 predicate places. [2023-12-05 21:12:33,253 INFO L500 AbstractCegarLoop]: Abstraction has has 174 places, 250 transitions, 1077 flow [2023-12-05 21:12:33,254 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 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) [2023-12-05 21:12:33,254 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:12:33,254 INFO L233 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] [2023-12-05 21:12:33,254 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-05 21:12:33,254 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2023-12-05 21:12:33,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:12:33,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1443499884, now seen corresponding path program 1 times [2023-12-05 21:12:33,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:12:33,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638231312] [2023-12-05 21:12:33,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:12:33,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:12:33,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:12:33,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:12:33,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:12:33,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638231312] [2023-12-05 21:12:33,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638231312] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:12:33,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:12:33,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-05 21:12:33,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501870993] [2023-12-05 21:12:33,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:12:33,488 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-05 21:12:33,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:12:33,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-05 21:12:33,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-05 21:12:33,490 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 175 [2023-12-05 21:12:33,491 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 250 transitions, 1077 flow. Second operand has 7 states, 7 states have (on average 103.14285714285714) internal successors, (722), 7 states have internal predecessors, (722), 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) [2023-12-05 21:12:33,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:12:33,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 175 [2023-12-05 21:12:33,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:12:34,223 INFO L124 PetriNetUnfolderBase]: 1189/3814 cut-off events. [2023-12-05 21:12:34,223 INFO L125 PetriNetUnfolderBase]: For 3290/3585 co-relation queries the response was YES. [2023-12-05 21:12:34,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10373 conditions, 3814 events. 1189/3814 cut-off events. For 3290/3585 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 30283 event pairs, 809 based on Foata normal form. 131/3858 useless extension candidates. Maximal degree in co-relation 10206. Up to 1961 conditions per place. [2023-12-05 21:12:34,248 INFO L140 encePairwiseOnDemand]: 167/175 looper letters, 147 selfloop transitions, 4 changer transitions 0/274 dead transitions. [2023-12-05 21:12:34,249 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 274 transitions, 1519 flow [2023-12-05 21:12:34,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-05 21:12:34,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-12-05 21:12:34,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 600 transitions. [2023-12-05 21:12:34,251 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6857142857142857 [2023-12-05 21:12:34,251 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 600 transitions. [2023-12-05 21:12:34,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 600 transitions. [2023-12-05 21:12:34,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:12:34,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 600 transitions. [2023-12-05 21:12:34,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 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) [2023-12-05 21:12:34,255 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 175.0) internal successors, (1050), 6 states have internal predecessors, (1050), 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) [2023-12-05 21:12:34,256 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 175.0) internal successors, (1050), 6 states have internal predecessors, (1050), 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) [2023-12-05 21:12:34,256 INFO L308 CegarLoopForPetriNet]: 172 programPoint places, 3 predicate places. [2023-12-05 21:12:34,257 INFO L500 AbstractCegarLoop]: Abstraction has has 175 places, 274 transitions, 1519 flow [2023-12-05 21:12:34,257 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 103.14285714285714) internal successors, (722), 7 states have internal predecessors, (722), 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) [2023-12-05 21:12:34,257 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:12:34,257 INFO L233 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] [2023-12-05 21:12:34,258 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-05 21:12:34,258 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2023-12-05 21:12:34,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:12:34,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1443499885, now seen corresponding path program 1 times [2023-12-05 21:12:34,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:12:34,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934705482] [2023-12-05 21:12:34,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:12:34,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:12:34,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:12:34,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:12:34,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:12:34,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934705482] [2023-12-05 21:12:34,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934705482] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:12:34,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:12:34,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-05 21:12:34,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853474308] [2023-12-05 21:12:34,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:12:34,560 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-05 21:12:34,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:12:34,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-05 21:12:34,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-05 21:12:34,562 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 175 [2023-12-05 21:12:34,563 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 274 transitions, 1519 flow. Second operand has 8 states, 8 states have (on average 79.375) internal successors, (635), 8 states have internal predecessors, (635), 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) [2023-12-05 21:12:34,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:12:34,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 175 [2023-12-05 21:12:34,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:12:35,488 INFO L124 PetriNetUnfolderBase]: 1480/4416 cut-off events. [2023-12-05 21:12:35,488 INFO L125 PetriNetUnfolderBase]: For 6762/7639 co-relation queries the response was YES. [2023-12-05 21:12:35,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14532 conditions, 4416 events. 1480/4416 cut-off events. For 6762/7639 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 35726 event pairs, 971 based on Foata normal form. 52/4342 useless extension candidates. Maximal degree in co-relation 14329. Up to 2046 conditions per place. [2023-12-05 21:12:35,532 INFO L140 encePairwiseOnDemand]: 163/175 looper letters, 321 selfloop transitions, 9 changer transitions 0/406 dead transitions. [2023-12-05 21:12:35,532 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 406 transitions, 3013 flow [2023-12-05 21:12:35,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-05 21:12:35,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-12-05 21:12:35,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 654 transitions. [2023-12-05 21:12:35,535 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6228571428571429 [2023-12-05 21:12:35,535 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 654 transitions. [2023-12-05 21:12:35,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 654 transitions. [2023-12-05 21:12:35,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:12:35,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 654 transitions. [2023-12-05 21:12:35,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 109.0) internal successors, (654), 6 states have internal predecessors, (654), 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) [2023-12-05 21:12:35,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 175.0) internal successors, (1225), 7 states have internal predecessors, (1225), 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) [2023-12-05 21:12:35,541 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 175.0) internal successors, (1225), 7 states have internal predecessors, (1225), 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) [2023-12-05 21:12:35,543 INFO L308 CegarLoopForPetriNet]: 172 programPoint places, 8 predicate places. [2023-12-05 21:12:35,543 INFO L500 AbstractCegarLoop]: Abstraction has has 180 places, 406 transitions, 3013 flow [2023-12-05 21:12:35,544 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 79.375) internal successors, (635), 8 states have internal predecessors, (635), 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) [2023-12-05 21:12:35,544 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:12:35,544 INFO L233 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] [2023-12-05 21:12:35,544 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-05 21:12:35,544 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2023-12-05 21:12:35,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:12:35,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1578536583, now seen corresponding path program 1 times [2023-12-05 21:12:35,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:12:35,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852408343] [2023-12-05 21:12:35,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:12:35,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:12:35,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:12:35,696 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:12:35,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:12:35,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852408343] [2023-12-05 21:12:35,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852408343] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-05 21:12:35,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821112136] [2023-12-05 21:12:35,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:12:35,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-05 21:12:35,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-05 21:12:35,705 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) [2023-12-05 21:12:35,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-05 21:12:35,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:12:35,825 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-05 21:12:35,830 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-05 21:12:35,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:12:35,915 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-05 21:12:35,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:12:35,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821112136] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-05 21:12:35,980 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-05 21:12:35,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-12-05 21:12:35,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629600826] [2023-12-05 21:12:35,980 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-05 21:12:35,981 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-05 21:12:35,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:12:35,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-05 21:12:35,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-12-05 21:12:35,983 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 175 [2023-12-05 21:12:35,985 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 406 transitions, 3013 flow. Second operand has 10 states, 10 states have (on average 147.4) internal successors, (1474), 10 states have internal predecessors, (1474), 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) [2023-12-05 21:12:35,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:12:35,985 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 175 [2023-12-05 21:12:35,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:12:36,857 INFO L124 PetriNetUnfolderBase]: 1480/4413 cut-off events. [2023-12-05 21:12:36,859 INFO L125 PetriNetUnfolderBase]: For 8663/9099 co-relation queries the response was YES. [2023-12-05 21:12:36,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15308 conditions, 4413 events. 1480/4413 cut-off events. For 8663/9099 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 35431 event pairs, 731 based on Foata normal form. 2/4307 useless extension candidates. Maximal degree in co-relation 15005. Up to 2056 conditions per place. [2023-12-05 21:12:36,886 INFO L140 encePairwiseOnDemand]: 166/175 looper letters, 60 selfloop transitions, 13 changer transitions 0/417 dead transitions. [2023-12-05 21:12:36,886 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 417 transitions, 3239 flow [2023-12-05 21:12:36,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-05 21:12:36,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-12-05 21:12:36,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1360 transitions. [2023-12-05 21:12:36,890 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8634920634920635 [2023-12-05 21:12:36,890 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1360 transitions. [2023-12-05 21:12:36,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1360 transitions. [2023-12-05 21:12:36,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:12:36,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1360 transitions. [2023-12-05 21:12:36,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 151.11111111111111) internal successors, (1360), 9 states have internal predecessors, (1360), 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) [2023-12-05 21:12:36,896 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 175.0) internal successors, (1750), 10 states have internal predecessors, (1750), 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) [2023-12-05 21:12:36,897 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 175.0) internal successors, (1750), 10 states have internal predecessors, (1750), 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) [2023-12-05 21:12:36,899 INFO L308 CegarLoopForPetriNet]: 172 programPoint places, 16 predicate places. [2023-12-05 21:12:36,899 INFO L500 AbstractCegarLoop]: Abstraction has has 188 places, 417 transitions, 3239 flow [2023-12-05 21:12:36,899 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 147.4) internal successors, (1474), 10 states have internal predecessors, (1474), 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) [2023-12-05 21:12:36,899 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:12:36,900 INFO L233 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-05 21:12:36,908 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-05 21:12:37,105 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-05 21:12:37,106 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2023-12-05 21:12:37,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:12:37,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1366560981, now seen corresponding path program 1 times [2023-12-05 21:12:37,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:12:37,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937686453] [2023-12-05 21:12:37,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:12:37,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:12:37,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:12:37,642 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:12:37,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:12:37,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937686453] [2023-12-05 21:12:37,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937686453] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-05 21:12:37,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530138234] [2023-12-05 21:12:37,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:12:37,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-05 21:12:37,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-05 21:12:37,644 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) [2023-12-05 21:12:37,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-05 21:12:37,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:12:37,762 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-05 21:12:37,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-05 21:12:37,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-05 21:12:37,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-12-05 21:12:37,905 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-12-05 21:12:37,906 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-12-05 21:12:38,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-05 21:12:38,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-12-05 21:12:38,245 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-12-05 21:12:38,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13 [2023-12-05 21:12:38,262 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-12-05 21:12:38,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-12-05 21:12:38,355 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:12:38,355 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-05 21:12:38,755 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-05 21:12:38,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 61 [2023-12-05 21:12:39,761 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:12:39,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530138234] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-05 21:12:39,763 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-05 21:12:39,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 10] total 28 [2023-12-05 21:12:39,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239974390] [2023-12-05 21:12:39,763 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-05 21:12:39,765 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-05 21:12:39,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:12:39,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-05 21:12:39,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=676, Unknown=0, NotChecked=0, Total=812 [2023-12-05 21:12:39,770 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 175 [2023-12-05 21:12:39,772 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 417 transitions, 3239 flow. Second operand has 29 states, 29 states have (on average 78.20689655172414) internal successors, (2268), 29 states have internal predecessors, (2268), 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) [2023-12-05 21:12:39,772 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:12:39,773 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 175 [2023-12-05 21:12:39,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:12:41,806 INFO L124 PetriNetUnfolderBase]: 1459/4385 cut-off events. [2023-12-05 21:12:41,806 INFO L125 PetriNetUnfolderBase]: For 12485/13266 co-relation queries the response was YES. [2023-12-05 21:12:41,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18123 conditions, 4385 events. 1459/4385 cut-off events. For 12485/13266 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 35146 event pairs, 411 based on Foata normal form. 40/4317 useless extension candidates. Maximal degree in co-relation 17705. Up to 2027 conditions per place. [2023-12-05 21:12:41,834 INFO L140 encePairwiseOnDemand]: 158/175 looper letters, 356 selfloop transitions, 21 changer transitions 0/451 dead transitions. [2023-12-05 21:12:41,834 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 451 transitions, 4307 flow [2023-12-05 21:12:41,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-05 21:12:41,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-12-05 21:12:41,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1287 transitions. [2023-12-05 21:12:41,839 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5253061224489796 [2023-12-05 21:12:41,839 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1287 transitions. [2023-12-05 21:12:41,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1287 transitions. [2023-12-05 21:12:41,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:12:41,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1287 transitions. [2023-12-05 21:12:41,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 91.92857142857143) internal successors, (1287), 14 states have internal predecessors, (1287), 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) [2023-12-05 21:12:41,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 175.0) internal successors, (2625), 15 states have internal predecessors, (2625), 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) [2023-12-05 21:12:41,847 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 175.0) internal successors, (2625), 15 states have internal predecessors, (2625), 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) [2023-12-05 21:12:41,848 INFO L308 CegarLoopForPetriNet]: 172 programPoint places, 28 predicate places. [2023-12-05 21:12:41,848 INFO L500 AbstractCegarLoop]: Abstraction has has 200 places, 451 transitions, 4307 flow [2023-12-05 21:12:41,849 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 78.20689655172414) internal successors, (2268), 29 states have internal predecessors, (2268), 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) [2023-12-05 21:12:41,849 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:12:41,849 INFO L233 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-05 21:12:41,860 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-05 21:12:42,055 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-12-05 21:12:42,056 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2023-12-05 21:12:42,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:12:42,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1329572341, now seen corresponding path program 2 times [2023-12-05 21:12:42,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:12:42,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393507035] [2023-12-05 21:12:42,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:12:42,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:12:42,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:12:42,265 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:12:42,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:12:42,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393507035] [2023-12-05 21:12:42,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393507035] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-05 21:12:42,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166440394] [2023-12-05 21:12:42,266 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-05 21:12:42,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-05 21:12:42,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-05 21:12:42,267 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) [2023-12-05 21:12:42,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-05 21:12:42,393 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-05 21:12:42,393 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-05 21:12:42,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-05 21:12:42,398 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-05 21:12:42,476 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:12:42,476 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-05 21:12:42,609 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:12:42,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [166440394] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-05 21:12:42,609 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-05 21:12:42,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2023-12-05 21:12:42,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529626562] [2023-12-05 21:12:42,609 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-05 21:12:42,610 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-05 21:12:42,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:12:42,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-05 21:12:42,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-12-05 21:12:42,613 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 175 [2023-12-05 21:12:42,615 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 451 transitions, 4307 flow. Second operand has 18 states, 18 states have (on average 147.66666666666666) internal successors, (2658), 18 states have internal predecessors, (2658), 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) [2023-12-05 21:12:42,615 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:12:42,615 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 175 [2023-12-05 21:12:42,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:12:43,597 INFO L124 PetriNetUnfolderBase]: 1459/4451 cut-off events. [2023-12-05 21:12:43,597 INFO L125 PetriNetUnfolderBase]: For 15531/16307 co-relation queries the response was YES. [2023-12-05 21:12:43,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19141 conditions, 4451 events. 1459/4451 cut-off events. For 15531/16307 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 35107 event pairs, 395 based on Foata normal form. 4/4347 useless extension candidates. Maximal degree in co-relation 18381. Up to 2057 conditions per place. [2023-12-05 21:12:43,714 INFO L140 encePairwiseOnDemand]: 166/175 looper letters, 75 selfloop transitions, 25 changer transitions 0/476 dead transitions. [2023-12-05 21:12:43,714 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 476 transitions, 4771 flow [2023-12-05 21:12:43,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-05 21:12:43,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-12-05 21:12:43,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3127 transitions. [2023-12-05 21:12:43,721 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8508843537414966 [2023-12-05 21:12:43,721 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3127 transitions. [2023-12-05 21:12:43,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3127 transitions. [2023-12-05 21:12:43,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:12:43,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3127 transitions. [2023-12-05 21:12:43,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 148.9047619047619) internal successors, (3127), 21 states have internal predecessors, (3127), 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) [2023-12-05 21:12:43,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 175.0) internal successors, (3850), 22 states have internal predecessors, (3850), 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) [2023-12-05 21:12:43,738 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 175.0) internal successors, (3850), 22 states have internal predecessors, (3850), 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) [2023-12-05 21:12:43,739 INFO L308 CegarLoopForPetriNet]: 172 programPoint places, 48 predicate places. [2023-12-05 21:12:43,739 INFO L500 AbstractCegarLoop]: Abstraction has has 220 places, 476 transitions, 4771 flow [2023-12-05 21:12:43,740 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 147.66666666666666) internal successors, (2658), 18 states have internal predecessors, (2658), 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) [2023-12-05 21:12:43,740 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:12:43,740 INFO L233 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-05 21:12:43,748 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-05 21:12:43,947 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-05 21:12:43,947 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2023-12-05 21:12:43,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:12:43,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1002786215, now seen corresponding path program 2 times [2023-12-05 21:12:43,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:12:43,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230619916] [2023-12-05 21:12:43,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:12:43,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:12:44,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:12:45,115 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:12:45,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:12:45,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230619916] [2023-12-05 21:12:45,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230619916] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-05 21:12:45,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [449476263] [2023-12-05 21:12:45,116 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-05 21:12:45,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-05 21:12:45,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-05 21:12:45,117 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) [2023-12-05 21:12:45,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-05 21:12:45,267 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-05 21:12:45,267 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-05 21:12:45,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 50 conjunts are in the unsatisfiable core [2023-12-05 21:12:45,274 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-05 21:12:45,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-05 21:12:45,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-12-05 21:12:45,379 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-12-05 21:12:45,380 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-12-05 21:12:45,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-05 21:12:45,471 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-12-05 21:12:45,709 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-12-05 21:12:45,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-12-05 21:12:45,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-12-05 21:12:46,042 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-12-05 21:12:46,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-12-05 21:12:46,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-12-05 21:12:46,336 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-12-05 21:12:46,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-12-05 21:12:46,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-12-05 21:12:46,446 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:12:46,446 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-05 21:12:46,793 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-05 21:12:46,793 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 61 [2023-12-05 21:12:47,242 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-05 21:12:47,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 61 [2023-12-05 21:12:47,751 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-05 21:12:47,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 61 [2023-12-05 21:12:48,438 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:12:48,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [449476263] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-05 21:12:48,439 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-05 21:12:48,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17, 14] total 48 [2023-12-05 21:12:48,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772059344] [2023-12-05 21:12:48,439 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-05 21:12:48,440 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-12-05 21:12:48,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:12:48,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-12-05 21:12:48,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=2081, Unknown=0, NotChecked=0, Total=2352 [2023-12-05 21:12:48,445 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 175 [2023-12-05 21:12:48,448 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 476 transitions, 4771 flow. Second operand has 49 states, 49 states have (on average 79.46938775510205) internal successors, (3894), 49 states have internal predecessors, (3894), 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) [2023-12-05 21:12:48,448 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:12:48,448 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 175 [2023-12-05 21:12:48,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:12:52,436 INFO L124 PetriNetUnfolderBase]: 1459/4463 cut-off events. [2023-12-05 21:12:52,436 INFO L125 PetriNetUnfolderBase]: For 20680/21791 co-relation queries the response was YES. [2023-12-05 21:12:52,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22221 conditions, 4463 events. 1459/4463 cut-off events. For 20680/21791 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 35116 event pairs, 395 based on Foata normal form. 21/4376 useless extension candidates. Maximal degree in co-relation 21302. Up to 2063 conditions per place. [2023-12-05 21:12:52,471 INFO L140 encePairwiseOnDemand]: 159/175 looper letters, 389 selfloop transitions, 39 changer transitions 0/503 dead transitions. [2023-12-05 21:12:52,472 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 503 transitions, 5945 flow [2023-12-05 21:12:52,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-12-05 21:12:52,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-12-05 21:12:52,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 2569 transitions. [2023-12-05 21:12:52,478 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.48933333333333334 [2023-12-05 21:12:52,478 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 2569 transitions. [2023-12-05 21:12:52,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 2569 transitions. [2023-12-05 21:12:52,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:12:52,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 2569 transitions. [2023-12-05 21:12:52,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 85.63333333333334) internal successors, (2569), 30 states have internal predecessors, (2569), 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) [2023-12-05 21:12:52,491 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 175.0) internal successors, (5425), 31 states have internal predecessors, (5425), 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) [2023-12-05 21:12:52,492 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 175.0) internal successors, (5425), 31 states have internal predecessors, (5425), 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) [2023-12-05 21:12:52,493 INFO L308 CegarLoopForPetriNet]: 172 programPoint places, 77 predicate places. [2023-12-05 21:12:52,493 INFO L500 AbstractCegarLoop]: Abstraction has has 249 places, 503 transitions, 5945 flow [2023-12-05 21:12:52,494 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 79.46938775510205) internal successors, (3894), 49 states have internal predecessors, (3894), 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) [2023-12-05 21:12:52,495 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:12:52,495 INFO L233 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-05 21:12:52,504 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-05 21:12:52,701 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-05 21:12:52,701 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2023-12-05 21:12:52,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:12:52,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1820235501, now seen corresponding path program 3 times [2023-12-05 21:12:52,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:12:52,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757954419] [2023-12-05 21:12:52,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:12:52,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:12:52,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:12:53,192 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 427 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:12:53,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:12:53,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757954419] [2023-12-05 21:12:53,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757954419] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-05 21:12:53,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178943798] [2023-12-05 21:12:53,193 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-05 21:12:53,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-05 21:12:53,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-05 21:12:53,197 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-05 21:12:53,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-05 21:15:08,045 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-12-05 21:15:08,045 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-05 21:15:08,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-05 21:15:08,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-05 21:15:08,239 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 427 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:15:08,239 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-05 21:15:08,501 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 427 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:15:08,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178943798] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-05 21:15:08,501 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-05 21:15:08,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2023-12-05 21:15:08,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607348990] [2023-12-05 21:15:08,502 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-05 21:15:08,502 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-05 21:15:08,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:15:08,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-05 21:15:08,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-12-05 21:15:08,505 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 175 [2023-12-05 21:15:08,513 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 503 transitions, 5945 flow. Second operand has 23 states, 23 states have (on average 147.8695652173913) internal successors, (3401), 23 states have internal predecessors, (3401), 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) [2023-12-05 21:15:08,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:15:08,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 175 [2023-12-05 21:15:08,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:15:09,823 INFO L124 PetriNetUnfolderBase]: 1459/4539 cut-off events. [2023-12-05 21:15:09,823 INFO L125 PetriNetUnfolderBase]: For 25825/28003 co-relation queries the response was YES. [2023-12-05 21:15:09,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23247 conditions, 4539 events. 1459/4539 cut-off events. For 25825/28003 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 35049 event pairs, 608 based on Foata normal form. 4/4415 useless extension candidates. Maximal degree in co-relation 22009. Up to 2083 conditions per place. [2023-12-05 21:15:09,858 INFO L140 encePairwiseOnDemand]: 166/175 looper letters, 83 selfloop transitions, 34 changer transitions 0/521 dead transitions. [2023-12-05 21:15:09,859 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 521 transitions, 6439 flow [2023-12-05 21:15:09,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-12-05 21:15:09,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-12-05 21:15:09,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4448 transitions. [2023-12-05 21:15:09,866 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8472380952380952 [2023-12-05 21:15:09,866 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 4448 transitions. [2023-12-05 21:15:09,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 4448 transitions. [2023-12-05 21:15:09,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:15:09,868 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 4448 transitions. [2023-12-05 21:15:09,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 148.26666666666668) internal successors, (4448), 30 states have internal predecessors, (4448), 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) [2023-12-05 21:15:09,883 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 175.0) internal successors, (5425), 31 states have internal predecessors, (5425), 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) [2023-12-05 21:15:09,884 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 175.0) internal successors, (5425), 31 states have internal predecessors, (5425), 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) [2023-12-05 21:15:09,885 INFO L308 CegarLoopForPetriNet]: 172 programPoint places, 106 predicate places. [2023-12-05 21:15:09,885 INFO L500 AbstractCegarLoop]: Abstraction has has 278 places, 521 transitions, 6439 flow [2023-12-05 21:15:09,886 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 147.8695652173913) internal successors, (3401), 23 states have internal predecessors, (3401), 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) [2023-12-05 21:15:09,886 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:15:09,886 INFO L233 CegarLoopForPetriNet]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-05 21:15:09,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-05 21:15:10,100 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-05 21:15:10,100 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2023-12-05 21:15:10,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:15:10,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1156613791, now seen corresponding path program 3 times [2023-12-05 21:15:10,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:15:10,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696803946] [2023-12-05 21:15:10,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:15:10,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:15:10,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:15:12,605 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 532 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:15:12,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:15:12,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696803946] [2023-12-05 21:15:12,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696803946] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-05 21:15:12,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1539121961] [2023-12-05 21:15:12,606 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-05 21:15:12,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-05 21:15:12,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-05 21:15:12,609 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-05 21:15:12,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-05 21:15:46,573 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-12-05 21:15:46,573 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-05 21:15:46,596 INFO L262 TraceCheckSpWp]: Trace formula consists of 760 conjuncts, 78 conjunts are in the unsatisfiable core [2023-12-05 21:15:46,600 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-05 21:15:46,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-05 21:15:46,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-12-05 21:15:46,719 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-12-05 21:15:46,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-12-05 21:15:46,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-05 21:15:46,815 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-12-05 21:15:47,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-05 21:15:47,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-12-05 21:15:47,288 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-12-05 21:15:47,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-12-05 21:15:47,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-12-05 21:15:47,538 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-12-05 21:15:47,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13 [2023-12-05 21:15:47,548 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-12-05 21:15:47,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-12-05 21:15:47,817 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-12-05 21:15:47,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-12-05 21:15:47,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-12-05 21:15:48,104 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-12-05 21:15:48,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-12-05 21:15:48,109 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-12-05 21:15:48,353 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-12-05 21:15:48,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-12-05 21:15:48,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-12-05 21:15:48,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-05 21:15:48,702 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-12-05 21:15:48,802 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 532 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:15:48,802 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-05 21:15:49,232 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-12-05 21:15:49,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 12 [2023-12-05 21:15:50,350 INFO L349 Elim1Store]: treesize reduction 14, result has 44.0 percent of original size [2023-12-05 21:15:50,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 55 [2023-12-05 21:15:51,332 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-12-05 21:15:51,333 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 12 [2023-12-05 21:16:03,724 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-12-05 21:16:03,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 12 [2023-12-05 21:16:11,748 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-12-05 21:16:11,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 12 [2023-12-05 21:16:27,023 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-12-05 21:16:27,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 12 [2023-12-05 21:16:34,780 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 532 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:16:34,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1539121961] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-05 21:16:34,780 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-05 21:16:34,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 31, 30] total 88 [2023-12-05 21:16:34,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551519884] [2023-12-05 21:16:34,781 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-05 21:16:34,781 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 89 states [2023-12-05 21:16:34,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:16:34,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2023-12-05 21:16:34,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=799, Invalid=7032, Unknown=1, NotChecked=0, Total=7832 [2023-12-05 21:16:34,788 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 175 [2023-12-05 21:16:34,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 521 transitions, 6439 flow. Second operand has 89 states, 89 states have (on average 79.66292134831461) internal successors, (7090), 89 states have internal predecessors, (7090), 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) [2023-12-05 21:16:34,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:16:34,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 175 [2023-12-05 21:16:34,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:16:40,805 INFO L124 PetriNetUnfolderBase]: 1457/4553 cut-off events. [2023-12-05 21:16:40,805 INFO L125 PetriNetUnfolderBase]: For 32744/35575 co-relation queries the response was YES. [2023-12-05 21:16:40,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26382 conditions, 4553 events. 1457/4553 cut-off events. For 32744/35575 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 35214 event pairs, 607 based on Foata normal form. 54/4479 useless extension candidates. Maximal degree in co-relation 24931. Up to 2090 conditions per place. [2023-12-05 21:16:40,833 INFO L140 encePairwiseOnDemand]: 155/175 looper letters, 408 selfloop transitions, 61 changer transitions 0/544 dead transitions. [2023-12-05 21:16:40,833 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 544 transitions, 7701 flow [2023-12-05 21:16:40,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-12-05 21:16:40,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2023-12-05 21:16:40,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 3693 transitions. [2023-12-05 21:16:40,838 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.4796103896103896 [2023-12-05 21:16:40,838 INFO L72 ComplementDD]: Start complementDD. Operand 44 states and 3693 transitions. [2023-12-05 21:16:40,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 3693 transitions. [2023-12-05 21:16:40,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:16:40,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 44 states and 3693 transitions. [2023-12-05 21:16:40,844 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 45 states, 44 states have (on average 83.93181818181819) internal successors, (3693), 44 states have internal predecessors, (3693), 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) [2023-12-05 21:16:40,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 45 states, 45 states have (on average 175.0) internal successors, (7875), 45 states have internal predecessors, (7875), 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) [2023-12-05 21:16:40,854 INFO L81 ComplementDD]: Finished complementDD. Result has 45 states, 45 states have (on average 175.0) internal successors, (7875), 45 states have internal predecessors, (7875), 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) [2023-12-05 21:16:40,854 INFO L308 CegarLoopForPetriNet]: 172 programPoint places, 149 predicate places. [2023-12-05 21:16:40,855 INFO L500 AbstractCegarLoop]: Abstraction has has 321 places, 544 transitions, 7701 flow [2023-12-05 21:16:40,856 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 89 states, 89 states have (on average 79.66292134831461) internal successors, (7090), 89 states have internal predecessors, (7090), 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) [2023-12-05 21:16:40,856 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:16:40,857 INFO L233 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-05 21:16:40,879 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-05 21:16:41,076 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-05 21:16:41,076 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2023-12-05 21:16:41,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:16:41,077 INFO L85 PathProgramCache]: Analyzing trace with hash 2040280359, now seen corresponding path program 4 times [2023-12-05 21:16:41,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:16:41,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013380675] [2023-12-05 21:16:41,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:16:41,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:16:41,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:16:42,696 INFO L134 CoverageAnalysis]: Checked inductivity of 910 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 720 trivial. 0 not checked. [2023-12-05 21:16:42,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:16:42,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013380675] [2023-12-05 21:16:42,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013380675] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-05 21:16:42,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104025545] [2023-12-05 21:16:42,696 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-05 21:16:42,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-05 21:16:42,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-05 21:16:42,698 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-05 21:16:42,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-05 21:16:42,997 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-05 21:16:42,997 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-05 21:16:43,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 923 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-05 21:16:43,008 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-05 21:16:43,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-05 21:16:43,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-05 21:16:43,071 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-12-05 21:16:43,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-05 21:16:43,176 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-12-05 21:16:43,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-05 21:16:43,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-12-05 21:16:43,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-05 21:16:43,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-12-05 21:16:43,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-05 21:16:43,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-12-05 21:16:43,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-05 21:16:43,584 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-12-05 21:16:43,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-05 21:16:43,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-12-05 21:16:43,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-05 21:16:43,790 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-12-05 21:16:43,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-05 21:16:43,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-12-05 21:16:43,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-05 21:16:43,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-12-05 21:16:44,019 INFO L134 CoverageAnalysis]: Checked inductivity of 910 backedges. 0 proven. 127 refuted. 0 times theorem prover too weak. 783 trivial. 0 not checked. [2023-12-05 21:16:44,019 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-05 21:16:45,837 INFO L134 CoverageAnalysis]: Checked inductivity of 910 backedges. 0 proven. 127 refuted. 0 times theorem prover too weak. 783 trivial. 0 not checked. [2023-12-05 21:16:45,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1104025545] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-05 21:16:45,838 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-05 21:16:45,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 9 [2023-12-05 21:16:45,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607912680] [2023-12-05 21:16:45,838 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-05 21:16:45,839 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-05 21:16:45,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:16:45,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-05 21:16:45,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=49, Unknown=0, NotChecked=0, Total=90 [2023-12-05 21:16:45,841 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 175 [2023-12-05 21:16:45,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 544 transitions, 7701 flow. Second operand has 10 states, 10 states have (on average 95.8) internal successors, (958), 10 states have internal predecessors, (958), 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) [2023-12-05 21:16:45,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:16:45,842 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 175 [2023-12-05 21:16:45,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:16:47,100 INFO L124 PetriNetUnfolderBase]: 1528/4713 cut-off events. [2023-12-05 21:16:47,100 INFO L125 PetriNetUnfolderBase]: For 42560/45055 co-relation queries the response was YES. [2023-12-05 21:16:47,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29950 conditions, 4713 events. 1528/4713 cut-off events. For 42560/45055 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 36513 event pairs, 578 based on Foata normal form. 58/4647 useless extension candidates. Maximal degree in co-relation 28414. Up to 2379 conditions per place. [2023-12-05 21:16:47,139 INFO L140 encePairwiseOnDemand]: 166/175 looper letters, 446 selfloop transitions, 29 changer transitions 0/615 dead transitions. [2023-12-05 21:16:47,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 615 transitions, 9715 flow [2023-12-05 21:16:47,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-05 21:16:47,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-12-05 21:16:47,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 581 transitions. [2023-12-05 21:16:47,140 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.664 [2023-12-05 21:16:47,140 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 581 transitions. [2023-12-05 21:16:47,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 581 transitions. [2023-12-05 21:16:47,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:16:47,140 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 581 transitions. [2023-12-05 21:16:47,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 116.2) internal successors, (581), 5 states have internal predecessors, (581), 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) [2023-12-05 21:16:47,142 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 175.0) internal successors, (1050), 6 states have internal predecessors, (1050), 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) [2023-12-05 21:16:47,143 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 175.0) internal successors, (1050), 6 states have internal predecessors, (1050), 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) [2023-12-05 21:16:47,143 INFO L308 CegarLoopForPetriNet]: 172 programPoint places, 151 predicate places. [2023-12-05 21:16:47,143 INFO L500 AbstractCegarLoop]: Abstraction has has 323 places, 615 transitions, 9715 flow [2023-12-05 21:16:47,144 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 95.8) internal successors, (958), 10 states have internal predecessors, (958), 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) [2023-12-05 21:16:47,144 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:16:47,144 INFO L233 CegarLoopForPetriNet]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-05 21:16:47,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-05 21:16:47,352 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-05 21:16:47,353 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 48 more)] === [2023-12-05 21:16:47,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:16:47,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1983946201, now seen corresponding path program 4 times [2023-12-05 21:16:47,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:16:47,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950118243] [2023-12-05 21:16:47,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:16:47,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:16:47,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:16:48,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1060 backedges. 888 proven. 172 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:16:48,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:16:48,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950118243] [2023-12-05 21:16:48,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950118243] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-05 21:16:48,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [101769707] [2023-12-05 21:16:48,180 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-05 21:16:48,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-05 21:16:48,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-05 21:16:48,185 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-05 21:16:48,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-05 21:16:48,529 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-05 21:16:48,529 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-05 21:16:48,534 INFO L262 TraceCheckSpWp]: Trace formula consists of 984 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-05 21:16:48,539 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-05 21:16:48,769 INFO L134 CoverageAnalysis]: Checked inductivity of 1060 backedges. 1060 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-05 21:16:48,770 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-05 21:16:48,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [101769707] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:16:48,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-05 21:16:48,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [23] total 25 [2023-12-05 21:16:48,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312371172] [2023-12-05 21:16:48,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:16:48,771 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-05 21:16:48,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:16:48,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-05 21:16:48,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2023-12-05 21:16:48,774 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 175 [2023-12-05 21:16:48,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 615 transitions, 9715 flow. Second operand has 23 states, 23 states have (on average 147.8695652173913) internal successors, (3401), 23 states have internal predecessors, (3401), 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) [2023-12-05 21:16:48,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:16:48,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 175 [2023-12-05 21:16:48,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2023-12-05 21:16:49,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-05 21:16:49,239 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 51 remaining) [2023-12-05 21:16:49,246 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-12-05 21:16:49,259 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-05 21:16:49,275 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 [2023-12-05 21:16:49,440 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-05 21:16:49,440 WARN L624 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). [2023-12-05 21:16:49,442 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 51 remaining) [2023-12-05 21:16:49,442 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 51 remaining) [2023-12-05 21:16:49,442 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 51 remaining) [2023-12-05 21:16:49,442 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 51 remaining) [2023-12-05 21:16:49,442 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 51 remaining) [2023-12-05 21:16:49,442 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 51 remaining) [2023-12-05 21:16:49,443 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 51 remaining) [2023-12-05 21:16:49,443 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 51 remaining) [2023-12-05 21:16:49,443 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 51 remaining) [2023-12-05 21:16:49,443 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 51 remaining) [2023-12-05 21:16:49,443 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 51 remaining) [2023-12-05 21:16:49,443 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 51 remaining) [2023-12-05 21:16:49,443 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 51 remaining) [2023-12-05 21:16:49,443 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 51 remaining) [2023-12-05 21:16:49,443 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 51 remaining) [2023-12-05 21:16:49,443 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 51 remaining) [2023-12-05 21:16:49,443 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 51 remaining) [2023-12-05 21:16:49,444 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 51 remaining) [2023-12-05 21:16:49,444 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 51 remaining) [2023-12-05 21:16:49,444 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 51 remaining) [2023-12-05 21:16:49,444 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 51 remaining) [2023-12-05 21:16:49,444 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 51 remaining) [2023-12-05 21:16:49,444 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 51 remaining) [2023-12-05 21:16:49,444 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 51 remaining) [2023-12-05 21:16:49,445 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 51 remaining) [2023-12-05 21:16:49,445 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 51 remaining) [2023-12-05 21:16:49,445 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 51 remaining) [2023-12-05 21:16:49,445 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 51 remaining) [2023-12-05 21:16:49,445 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 51 remaining) [2023-12-05 21:16:49,445 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 51 remaining) [2023-12-05 21:16:49,445 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 51 remaining) [2023-12-05 21:16:49,445 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 51 remaining) [2023-12-05 21:16:49,446 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 51 remaining) [2023-12-05 21:16:49,446 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 51 remaining) [2023-12-05 21:16:49,446 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 51 remaining) [2023-12-05 21:16:49,446 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 51 remaining) [2023-12-05 21:16:49,446 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 51 remaining) [2023-12-05 21:16:49,446 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 51 remaining) [2023-12-05 21:16:49,446 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 51 remaining) [2023-12-05 21:16:49,446 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 51 remaining) [2023-12-05 21:16:49,446 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 51 remaining) [2023-12-05 21:16:49,446 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 51 remaining) [2023-12-05 21:16:49,446 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 51 remaining) [2023-12-05 21:16:49,446 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 51 remaining) [2023-12-05 21:16:49,447 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 51 remaining) [2023-12-05 21:16:49,447 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 51 remaining) [2023-12-05 21:16:49,447 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 51 remaining) [2023-12-05 21:16:49,447 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 51 remaining) [2023-12-05 21:16:49,447 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 51 remaining) [2023-12-05 21:16:49,447 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 51 remaining) [2023-12-05 21:16:49,448 INFO L457 BasicCegarLoop]: Path program histogram: [4, 4, 1, 1, 1, 1, 1] [2023-12-05 21:16:49,454 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-05 21:16:49,454 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-05 21:16:49,461 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 09:16:49 BasicIcfg [2023-12-05 21:16:49,461 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-05 21:16:49,462 INFO L158 Benchmark]: Toolchain (without parser) took 260252.10ms. Allocated memory was 204.5MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 161.1MB in the beginning and 429.7MB in the end (delta: -268.6MB). Peak memory consumption was 934.6MB. Max. memory is 8.0GB. [2023-12-05 21:16:49,463 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 204.5MB. Free memory is still 160.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-05 21:16:49,463 INFO L158 Benchmark]: CACSL2BoogieTranslator took 642.81ms. Allocated memory is still 204.5MB. Free memory was 160.7MB in the beginning and 121.6MB in the end (delta: 39.2MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. [2023-12-05 21:16:49,463 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.79ms. Allocated memory is still 204.5MB. Free memory was 121.6MB in the beginning and 118.8MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-05 21:16:49,463 INFO L158 Benchmark]: Boogie Preprocessor took 45.37ms. Allocated memory is still 204.5MB. Free memory was 118.8MB in the beginning and 177.3MB in the end (delta: -58.5MB). Peak memory consumption was 7.8MB. Max. memory is 8.0GB. [2023-12-05 21:16:49,464 INFO L158 Benchmark]: RCFGBuilder took 541.87ms. Allocated memory is still 204.5MB. Free memory was 177.3MB in the beginning and 150.6MB in the end (delta: 26.7MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2023-12-05 21:16:49,464 INFO L158 Benchmark]: TraceAbstraction took 258963.17ms. Allocated memory was 204.5MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 149.5MB in the beginning and 429.7MB in the end (delta: -280.2MB). Peak memory consumption was 921.5MB. Max. memory is 8.0GB. [2023-12-05 21:16:49,466 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 204.5MB. Free memory is still 160.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 642.81ms. Allocated memory is still 204.5MB. Free memory was 160.7MB in the beginning and 121.6MB in the end (delta: 39.2MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 53.79ms. Allocated memory is still 204.5MB. Free memory was 121.6MB in the beginning and 118.8MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 45.37ms. Allocated memory is still 204.5MB. Free memory was 118.8MB in the beginning and 177.3MB in the end (delta: -58.5MB). Peak memory consumption was 7.8MB. Max. memory is 8.0GB. * RCFGBuilder took 541.87ms. Allocated memory is still 204.5MB. Free memory was 177.3MB in the beginning and 150.6MB in the end (delta: 26.7MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * TraceAbstraction took 258963.17ms. Allocated memory was 204.5MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 149.5MB in the beginning and 429.7MB in the end (delta: -280.2MB). Peak memory consumption was 921.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). - TimeoutResultAtElement [Line: 1257]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). - TimeoutResultAtElement [Line: -1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (23states, 145/175 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2736 conditions, 401 events (52/400 cut-off events. For 4120/4255 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1087 event pairs, 33 based on Foata normal form. 2/418 useless extension candidates. Maximal degree in co-relation 1249. Up to 176 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 224 locations, 51 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: 258.8s, OverallIterations: 13, TraceHistogramMax: 11, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 21.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4282 SdHoareTripleChecker+Valid, 6.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4282 mSDsluCounter, 1860 SdHoareTripleChecker+Invalid, 5.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1564 mSDsCounter, 341 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10695 IncrementalHoareTripleChecker+Invalid, 11036 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 341 mSolverCounterUnsat, 296 mSDtfsCounter, 10695 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2119 GetRequests, 1706 SyntacticMatches, 30 SemanticMatches, 383 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7132 ImplicationChecksByTransitivity, 52.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9715occurred in iteration=12, InterpolantAutomatonStates: 177, 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: 0.3s SsaConstructionTime, 169.1s SatisfiabilityAnalysisTime, 65.1s InterpolantComputationTime, 2190 NumberOfCodeBlocks, 2165 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 2964 ConstructedInterpolants, 453 QuantifiedInterpolants, 37239 SizeOfPredicates, 121 NumberOfNonLiveVariables, 4432 ConjunctsInSsa, 234 ConjunctsInUnsatCore, 28 InterpolantComputations, 6 PerfectInterpolantSequences, 4234/8291 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