/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/04-mutex_04-munge_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-6bf5761-m [2023-12-05 21:11:54,499 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-05 21:11:54,567 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 21:11:54,591 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-05 21:11:54,592 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-05 21:11:54,592 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-05 21:11:54,593 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-05 21:11:54,593 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-05 21:11:54,593 INFO L153 SettingsManager]: * Use SBE=true [2023-12-05 21:11:54,596 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-05 21:11:54,596 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-05 21:11:54,597 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-05 21:11:54,597 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-05 21:11:54,598 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-05 21:11:54,598 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-05 21:11:54,598 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-05 21:11:54,598 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-05 21:11:54,598 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-05 21:11:54,598 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-05 21:11:54,598 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-05 21:11:54,599 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-05 21:11:54,599 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-05 21:11:54,599 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-05 21:11:54,599 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-05 21:11:54,600 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-05 21:11:54,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-05 21:11:54,600 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-05 21:11:54,600 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-05 21:11:54,600 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-05 21:11:54,600 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-05 21:11:54,601 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-05 21:11:54,601 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-05 21:11:54,601 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-05 21:11:54,601 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer base address is valid at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer to allocated memory at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check array bounds for arrays that are off heap -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check if freed pointer was valid -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2023-12-05 21:11:54,775 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-05 21:11:54,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-05 21:11:54,793 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-05 21:11:54,793 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-05 21:11:54,794 INFO L274 PluginConnector]: CDTParser initialized [2023-12-05 21:11:54,795 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_04-munge_nr.i [2023-12-05 21:11:55,730 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-05 21:11:55,944 INFO L384 CDTParser]: Found 1 translation units. [2023-12-05 21:11:55,944 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_04-munge_nr.i [2023-12-05 21:11:55,960 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0bc91321/0742bf60f4ab45db99e7e479fd9de32a/FLAGab42671b9 [2023-12-05 21:11:55,975 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0bc91321/0742bf60f4ab45db99e7e479fd9de32a [2023-12-05 21:11:55,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-05 21:11:55,977 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-05 21:11:55,979 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-05 21:11:55,979 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-05 21:11:55,983 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-05 21:11:55,983 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:11:55" (1/1) ... [2023-12-05 21:11:55,984 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ce8bd16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:11:55, skipping insertion in model container [2023-12-05 21:11:55,985 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:11:55" (1/1) ... [2023-12-05 21:11:56,022 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-05 21:11:56,293 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-05 21:11:56,305 INFO L202 MainTranslator]: Completed pre-run [2023-12-05 21:11:56,344 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-05 21:11:56,389 INFO L206 MainTranslator]: Completed translation [2023-12-05 21:11:56,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:11:56 WrapperNode [2023-12-05 21:11:56,389 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-05 21:11:56,391 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-05 21:11:56,391 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-05 21:11:56,391 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-05 21:11:56,396 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:11:56" (1/1) ... [2023-12-05 21:11:56,420 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:11:56" (1/1) ... [2023-12-05 21:11:56,438 INFO L138 Inliner]: procedures = 264, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 49 [2023-12-05 21:11:56,439 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-05 21:11:56,439 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-05 21:11:56,439 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-05 21:11:56,439 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-05 21:11:56,445 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:11:56" (1/1) ... [2023-12-05 21:11:56,445 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:11:56" (1/1) ... [2023-12-05 21:11:56,454 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:11:56" (1/1) ... [2023-12-05 21:11:56,454 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:11:56" (1/1) ... [2023-12-05 21:11:56,464 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:11:56" (1/1) ... [2023-12-05 21:11:56,465 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:11:56" (1/1) ... [2023-12-05 21:11:56,466 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:11:56" (1/1) ... [2023-12-05 21:11:56,467 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:11:56" (1/1) ... [2023-12-05 21:11:56,468 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-05 21:11:56,469 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-05 21:11:56,469 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-05 21:11:56,469 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-05 21:11:56,469 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:11:56" (1/1) ... [2023-12-05 21:11:56,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-05 21:11:56,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-05 21:11:56,506 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 21:11:56,522 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 21:11:56,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-05 21:11:56,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-05 21:11:56,528 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-12-05 21:11:56,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-05 21:11:56,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-05 21:11:56,528 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-12-05 21:11:56,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-05 21:11:56,529 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-12-05 21:11:56,529 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-12-05 21:11:56,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-05 21:11:56,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-05 21:11:56,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-05 21:11:56,530 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 21:11:56,615 INFO L241 CfgBuilder]: Building ICFG [2023-12-05 21:11:56,616 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-05 21:11:56,721 INFO L282 CfgBuilder]: Performing block encoding [2023-12-05 21:11:56,735 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-05 21:11:56,736 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-05 21:11:56,737 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:11:56 BoogieIcfgContainer [2023-12-05 21:11:56,737 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-05 21:11:56,738 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-05 21:11:56,738 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-05 21:11:56,740 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-05 21:11:56,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 09:11:55" (1/3) ... [2023-12-05 21:11:56,741 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57cd99f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:11:56, skipping insertion in model container [2023-12-05 21:11:56,741 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:11:56" (2/3) ... [2023-12-05 21:11:56,741 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57cd99f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:11:56, skipping insertion in model container [2023-12-05 21:11:56,741 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:11:56" (3/3) ... [2023-12-05 21:11:56,742 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_04-munge_nr.i [2023-12-05 21:11:56,753 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-05 21:11:56,753 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-12-05 21:11:56,753 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-05 21:11:56,782 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-12-05 21:11:56,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 56 transitions, 119 flow [2023-12-05 21:11:56,825 INFO L124 PetriNetUnfolderBase]: 0/55 cut-off events. [2023-12-05 21:11:56,825 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-12-05 21:11:56,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 55 events. 0/55 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 37 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-12-05 21:11:56,828 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 56 transitions, 119 flow [2023-12-05 21:11:56,830 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 50 places, 46 transitions, 95 flow [2023-12-05 21:11:56,837 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-05 21:11:56,841 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;@40088f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-05 21:11:56,842 INFO L363 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-12-05 21:11:56,846 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-05 21:11:56,846 INFO L124 PetriNetUnfolderBase]: 0/16 cut-off events. [2023-12-05 21:11:56,846 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-05 21:11:56,846 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:11:56,846 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-05 21:11:56,847 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 2 more)] === [2023-12-05 21:11:56,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:11:56,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1617412978, now seen corresponding path program 1 times [2023-12-05 21:11:56,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:11:56,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626300142] [2023-12-05 21:11:56,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:11:56,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:11:56,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:11:57,070 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 21:11:57,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:11:57,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626300142] [2023-12-05 21:11:57,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626300142] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:11:57,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:11:57,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:11:57,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005061806] [2023-12-05 21:11:57,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:11:57,080 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:11:57,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:11:57,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:11:57,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:11:57,112 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 56 [2023-12-05 21:11:57,114 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 46 transitions, 95 flow. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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 21:11:57,114 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:11:57,114 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 56 [2023-12-05 21:11:57,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:11:57,163 INFO L124 PetriNetUnfolderBase]: 6/77 cut-off events. [2023-12-05 21:11:57,164 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-05 21:11:57,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 77 events. 6/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 137 event pairs, 6 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 76. Up to 21 conditions per place. [2023-12-05 21:11:57,166 INFO L140 encePairwiseOnDemand]: 53/56 looper letters, 11 selfloop transitions, 1 changer transitions 0/44 dead transitions. [2023-12-05 21:11:57,166 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 44 transitions, 115 flow [2023-12-05 21:11:57,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:11:57,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:11:57,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 125 transitions. [2023-12-05 21:11:57,175 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7440476190476191 [2023-12-05 21:11:57,175 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 125 transitions. [2023-12-05 21:11:57,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 125 transitions. [2023-12-05 21:11:57,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:11:57,178 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 125 transitions. [2023-12-05 21:11:57,179 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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 21:11:57,181 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 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 21:11:57,182 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 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 21:11:57,184 INFO L308 CegarLoopForPetriNet]: 50 programPoint places, 0 predicate places. [2023-12-05 21:11:57,184 INFO L500 AbstractCegarLoop]: Abstraction has has 50 places, 44 transitions, 115 flow [2023-12-05 21:11:57,185 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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 21:11:57,185 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:11:57,185 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-05 21:11:57,185 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-05 21:11:57,185 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 2 more)] === [2023-12-05 21:11:57,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:11:57,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1617412977, now seen corresponding path program 1 times [2023-12-05 21:11:57,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:11:57,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633091098] [2023-12-05 21:11:57,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:11:57,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:11:57,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:11:57,328 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 21:11:57,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:11:57,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633091098] [2023-12-05 21:11:57,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633091098] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:11:57,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:11:57,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:11:57,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876485389] [2023-12-05 21:11:57,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:11:57,335 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:11:57,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:11:57,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:11:57,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:11:57,338 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 56 [2023-12-05 21:11:57,339 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 44 transitions, 115 flow. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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 21:11:57,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:11:57,339 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 56 [2023-12-05 21:11:57,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:11:57,369 INFO L124 PetriNetUnfolderBase]: 4/64 cut-off events. [2023-12-05 21:11:57,369 INFO L125 PetriNetUnfolderBase]: For 11/13 co-relation queries the response was YES. [2023-12-05 21:11:57,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 64 events. 4/64 cut-off events. For 11/13 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 92 event pairs, 4 based on Foata normal form. 3/66 useless extension candidates. Maximal degree in co-relation 71. Up to 15 conditions per place. [2023-12-05 21:11:57,371 INFO L140 encePairwiseOnDemand]: 53/56 looper letters, 0 selfloop transitions, 0 changer transitions 42/42 dead transitions. [2023-12-05 21:11:57,371 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 42 transitions, 125 flow [2023-12-05 21:11:57,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:11:57,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:11:57,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 125 transitions. [2023-12-05 21:11:57,373 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7440476190476191 [2023-12-05 21:11:57,373 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 125 transitions. [2023-12-05 21:11:57,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 125 transitions. [2023-12-05 21:11:57,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:11:57,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 125 transitions. [2023-12-05 21:11:57,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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 21:11:57,375 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 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 21:11:57,375 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 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 21:11:57,376 INFO L308 CegarLoopForPetriNet]: 50 programPoint places, 0 predicate places. [2023-12-05 21:11:57,376 INFO L500 AbstractCegarLoop]: Abstraction has has 50 places, 42 transitions, 125 flow [2023-12-05 21:11:57,376 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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 21:11:57,381 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/04-mutex_04-munge_nr.i_BEv2_AllErrorsAtOnce [2023-12-05 21:11:57,393 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 5 remaining) [2023-12-05 21:11:57,394 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 5 remaining) [2023-12-05 21:11:57,394 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 5 remaining) [2023-12-05 21:11:57,394 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 5 remaining) [2023-12-05 21:11:57,394 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-12-05 21:11:57,394 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-05 21:11:57,395 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1] [2023-12-05 21:11:57,404 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-05 21:11:57,404 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-05 21:11:57,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 09:11:57 BasicIcfg [2023-12-05 21:11:57,411 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-05 21:11:57,412 INFO L158 Benchmark]: Toolchain (without parser) took 1434.18ms. Allocated memory was 198.2MB in the beginning and 267.4MB in the end (delta: 69.2MB). Free memory was 156.7MB in the beginning and 208.5MB in the end (delta: -51.7MB). Peak memory consumption was 18.4MB. Max. memory is 8.0GB. [2023-12-05 21:11:57,412 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 198.2MB. Free memory is still 147.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-05 21:11:57,412 INFO L158 Benchmark]: CACSL2BoogieTranslator took 410.38ms. Allocated memory is still 198.2MB. Free memory was 156.7MB in the beginning and 128.9MB in the end (delta: 27.8MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2023-12-05 21:11:57,412 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.13ms. Allocated memory is still 198.2MB. Free memory was 128.9MB in the beginning and 126.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-05 21:11:57,413 INFO L158 Benchmark]: Boogie Preprocessor took 28.73ms. Allocated memory is still 198.2MB. Free memory was 126.8MB in the beginning and 125.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-05 21:11:57,413 INFO L158 Benchmark]: RCFGBuilder took 268.38ms. Allocated memory is still 198.2MB. Free memory was 125.2MB in the beginning and 111.6MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-05 21:11:57,413 INFO L158 Benchmark]: TraceAbstraction took 672.85ms. Allocated memory was 198.2MB in the beginning and 267.4MB in the end (delta: 69.2MB). Free memory was 111.0MB in the beginning and 208.5MB in the end (delta: -97.4MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-05 21:11:57,415 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 198.2MB. Free memory is still 147.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 410.38ms. Allocated memory is still 198.2MB. Free memory was 156.7MB in the beginning and 128.9MB in the end (delta: 27.8MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.13ms. Allocated memory is still 198.2MB. Free memory was 128.9MB in the beginning and 126.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.73ms. Allocated memory is still 198.2MB. Free memory was 126.8MB in the beginning and 125.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 268.38ms. Allocated memory is still 198.2MB. Free memory was 125.2MB in the beginning and 111.6MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 672.85ms. Allocated memory was 198.2MB in the beginning and 267.4MB in the end (delta: 69.2MB). Free memory was 111.0MB in the beginning and 208.5MB in the end (delta: -97.4MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 72 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 19 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 7 mSDtfsCounter, 19 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=2, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 66 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-12-05 21:11:57,437 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...