/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_05-lockfuns.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-6bf5761-m [2023-12-05 21:11:54,611 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-05 21:11:54,680 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-12-05 21:11:54,706 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-05 21:11:54,707 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-05 21:11:54,707 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-05 21:11:54,707 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-05 21:11:54,708 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-05 21:11:54,708 INFO L153 SettingsManager]: * Use SBE=true [2023-12-05 21:11:54,711 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-05 21:11:54,712 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-05 21:11:54,712 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-05 21:11:54,712 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-05 21:11:54,713 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-05 21:11:54,713 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-05 21:11:54,713 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-05 21:11:54,713 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-05 21:11:54,713 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-05 21:11:54,714 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-05 21:11:54,714 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-05 21:11:54,714 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-05 21:11:54,714 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-05 21:11:54,715 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-05 21:11:54,715 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-05 21:11:54,715 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-05 21:11:54,716 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-05 21:11:54,716 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-05 21:11:54,716 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-05 21:11:54,716 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-05 21:11:54,717 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-05 21:11:54,717 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-05 21:11:54,717 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-05 21:11:54,717 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-05 21:11:54,718 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer base address is valid at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer to allocated memory at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check array bounds for arrays that are off heap -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check if freed pointer was valid -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2023-12-05 21:11:54,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-05 21:11:54,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-05 21:11:54,947 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-05 21:11:54,948 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-05 21:11:54,949 INFO L274 PluginConnector]: CDTParser initialized [2023-12-05 21:11:54,949 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_05-lockfuns.i [2023-12-05 21:11:56,008 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-05 21:11:56,233 INFO L384 CDTParser]: Found 1 translation units. [2023-12-05 21:11:56,233 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_05-lockfuns.i [2023-12-05 21:11:56,250 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26c2b5134/eac9a9cb87db4f80ab12681b0ea32b0e/FLAG5c5a44e4e [2023-12-05 21:11:56,263 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26c2b5134/eac9a9cb87db4f80ab12681b0ea32b0e [2023-12-05 21:11:56,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-05 21:11:56,266 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-05 21:11:56,268 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-05 21:11:56,268 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-05 21:11:56,271 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-05 21:11:56,272 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:11:56" (1/1) ... [2023-12-05 21:11:56,273 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f45f81a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:11:56, skipping insertion in model container [2023-12-05 21:11:56,273 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:11:56" (1/1) ... [2023-12-05 21:11:56,314 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-05 21:11:56,630 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-05 21:11:56,642 INFO L202 MainTranslator]: Completed pre-run [2023-12-05 21:11:56,672 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-05 21:11:56,712 INFO L206 MainTranslator]: Completed translation [2023-12-05 21:11:56,712 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:11:56 WrapperNode [2023-12-05 21:11:56,712 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-05 21:11:56,713 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-05 21:11:56,713 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-05 21:11:56,714 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-05 21:11:56,718 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 21:11:56,747 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 21:11:56,768 INFO L138 Inliner]: procedures = 265, calls = 20, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 53 [2023-12-05 21:11:56,768 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-05 21:11:56,769 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-05 21:11:56,769 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-05 21:11:56,769 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-05 21:11:56,774 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 21:11:56,774 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 21:11:56,776 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 21:11:56,776 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 21:11:56,779 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 21:11:56,780 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 21:11:56,781 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 21:11:56,782 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 21:11:56,783 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-05 21:11:56,784 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-05 21:11:56,784 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-05 21:11:56,784 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-05 21:11:56,785 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 21:11:56,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-05 21:11:56,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-05 21:11:56,825 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 21:11:56,834 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 21:11:56,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-05 21:11:56,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-05 21:11:56,860 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-12-05 21:11:56,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-05 21:11:56,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-05 21:11:56,860 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-12-05 21:11:56,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-05 21:11:56,861 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-12-05 21:11:56,861 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-12-05 21:11:56,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-05 21:11:56,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-05 21:11:56,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-05 21:11:56,862 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 21:11:57,034 INFO L241 CfgBuilder]: Building ICFG [2023-12-05 21:11:57,037 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-05 21:11:57,188 INFO L282 CfgBuilder]: Performing block encoding [2023-12-05 21:11:57,204 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-05 21:11:57,204 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-05 21:11:57,205 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:11:57 BoogieIcfgContainer [2023-12-05 21:11:57,205 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-05 21:11:57,207 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-05 21:11:57,207 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-05 21:11:57,210 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-05 21:11:57,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 09:11:56" (1/3) ... [2023-12-05 21:11:57,211 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@678dba56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:11:57, skipping insertion in model container [2023-12-05 21:11:57,212 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 21:11:57,212 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@678dba56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:11:57, skipping insertion in model container [2023-12-05 21:11:57,212 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:11:57" (3/3) ... [2023-12-05 21:11:57,213 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_05-lockfuns.i [2023-12-05 21:11:57,225 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-05 21:11:57,225 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-12-05 21:11:57,225 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-05 21:11:57,274 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-12-05 21:11:57,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 58 transitions, 123 flow [2023-12-05 21:11:57,329 INFO L124 PetriNetUnfolderBase]: 0/57 cut-off events. [2023-12-05 21:11:57,329 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-12-05 21:11:57,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 57 events. 0/57 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 40 event pairs, 0 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-12-05 21:11:57,332 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 58 transitions, 123 flow [2023-12-05 21:11:57,336 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 52 places, 48 transitions, 99 flow [2023-12-05 21:11:57,352 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-05 21:11:57,357 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;@5e920b49, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-05 21:11:57,357 INFO L363 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-12-05 21:11:57,366 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-05 21:11:57,367 INFO L124 PetriNetUnfolderBase]: 0/16 cut-off events. [2023-12-05 21:11:57,367 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-05 21:11:57,367 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:11:57,367 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-05 21:11:57,368 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 21:11:57,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:11:57,372 INFO L85 PathProgramCache]: Analyzing trace with hash 76542722, now seen corresponding path program 1 times [2023-12-05 21:11:57,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:11:57,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469643168] [2023-12-05 21:11:57,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:11:57,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:11:57,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:11:57,621 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 21:11:57,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:11:57,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469643168] [2023-12-05 21:11:57,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469643168] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:11:57,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:11:57,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:11:57,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339743955] [2023-12-05 21:11:57,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:11:57,630 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:11:57,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:11:57,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:11:57,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:11:57,651 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 58 [2023-12-05 21:11:57,653 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 48 transitions, 99 flow. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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 21:11:57,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:11:57,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 58 [2023-12-05 21:11:57,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:11:57,695 INFO L124 PetriNetUnfolderBase]: 6/88 cut-off events. [2023-12-05 21:11:57,695 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-05 21:11:57,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 88 events. 6/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 164 event pairs, 6 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 87. Up to 21 conditions per place. [2023-12-05 21:11:57,698 INFO L140 encePairwiseOnDemand]: 55/58 looper letters, 11 selfloop transitions, 1 changer transitions 0/46 dead transitions. [2023-12-05 21:11:57,698 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 46 transitions, 119 flow [2023-12-05 21:11:57,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:11:57,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:11:57,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 131 transitions. [2023-12-05 21:11:57,707 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7528735632183908 [2023-12-05 21:11:57,708 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 131 transitions. [2023-12-05 21:11:57,709 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 131 transitions. [2023-12-05 21:11:57,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:11:57,711 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 131 transitions. [2023-12-05 21:11:57,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:11:57,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 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 21:11:57,721 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 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 21:11:57,726 INFO L308 CegarLoopForPetriNet]: 52 programPoint places, 0 predicate places. [2023-12-05 21:11:57,726 INFO L500 AbstractCegarLoop]: Abstraction has has 52 places, 46 transitions, 119 flow [2023-12-05 21:11:57,726 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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 21:11:57,726 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-05 21:11:57,726 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-05 21:11:57,726 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-05 21:11:57,727 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 21:11:57,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-05 21:11:57,727 INFO L85 PathProgramCache]: Analyzing trace with hash 76542723, now seen corresponding path program 1 times [2023-12-05 21:11:57,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-05 21:11:57,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80677518] [2023-12-05 21:11:57,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-05 21:11:57,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-05 21:11:57,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-05 21:11:57,819 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 21:11:57,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-05 21:11:57,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80677518] [2023-12-05 21:11:57,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80677518] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-05 21:11:57,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-05 21:11:57,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-05 21:11:57,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579500801] [2023-12-05 21:11:57,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-05 21:11:57,821 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-05 21:11:57,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-05 21:11:57,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-05 21:11:57,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-05 21:11:57,822 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 58 [2023-12-05 21:11:57,822 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 46 transitions, 119 flow. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 21:11:57,822 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-05 21:11:57,822 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 58 [2023-12-05 21:11:57,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-05 21:11:57,840 INFO L124 PetriNetUnfolderBase]: 4/72 cut-off events. [2023-12-05 21:11:57,840 INFO L125 PetriNetUnfolderBase]: For 12/16 co-relation queries the response was YES. [2023-12-05 21:11:57,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 72 events. 4/72 cut-off events. For 12/16 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 113 event pairs, 4 based on Foata normal form. 3/73 useless extension candidates. Maximal degree in co-relation 79. Up to 15 conditions per place. [2023-12-05 21:11:57,840 INFO L140 encePairwiseOnDemand]: 55/58 looper letters, 0 selfloop transitions, 0 changer transitions 44/44 dead transitions. [2023-12-05 21:11:57,841 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 44 transitions, 129 flow [2023-12-05 21:11:57,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-05 21:11:57,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-05 21:11:57,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 131 transitions. [2023-12-05 21:11:57,842 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7528735632183908 [2023-12-05 21:11:57,842 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 131 transitions. [2023-12-05 21:11:57,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 131 transitions. [2023-12-05 21:11:57,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-05 21:11:57,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 131 transitions. [2023-12-05 21:11:57,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-05 21:11:57,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 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 21:11:57,843 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 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 21:11:57,844 INFO L308 CegarLoopForPetriNet]: 52 programPoint places, 0 predicate places. [2023-12-05 21:11:57,844 INFO L500 AbstractCegarLoop]: Abstraction has has 52 places, 44 transitions, 129 flow [2023-12-05 21:11:57,844 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 21:11:57,849 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/04-mutex_05-lockfuns.i_BEv2_AllErrorsAtOnce [2023-12-05 21:11:57,860 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 5 remaining) [2023-12-05 21:11:57,861 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 5 remaining) [2023-12-05 21:11:57,861 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 5 remaining) [2023-12-05 21:11:57,861 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 5 remaining) [2023-12-05 21:11:57,861 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-12-05 21:11:57,861 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-05 21:11:57,862 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1] [2023-12-05 21:11:57,864 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-05 21:11:57,864 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-05 21:11:57,869 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 09:11:57 BasicIcfg [2023-12-05 21:11:57,869 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-05 21:11:57,869 INFO L158 Benchmark]: Toolchain (without parser) took 1603.45ms. Allocated memory is still 332.4MB. Free memory was 277.3MB in the beginning and 260.8MB in the end (delta: 16.5MB). Peak memory consumption was 17.5MB. Max. memory is 8.0GB. [2023-12-05 21:11:57,869 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 206.6MB. Free memory is still 154.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-05 21:11:57,870 INFO L158 Benchmark]: CACSL2BoogieTranslator took 444.57ms. Allocated memory is still 332.4MB. Free memory was 276.8MB in the beginning and 249.0MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2023-12-05 21:11:57,870 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.40ms. Allocated memory is still 332.4MB. Free memory was 249.0MB in the beginning and 246.4MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-05 21:11:57,870 INFO L158 Benchmark]: Boogie Preprocessor took 14.39ms. Allocated memory is still 332.4MB. Free memory was 246.4MB in the beginning and 245.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-05 21:11:57,871 INFO L158 Benchmark]: RCFGBuilder took 421.45ms. Allocated memory is still 332.4MB. Free memory was 245.3MB in the beginning and 231.7MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-05 21:11:57,871 INFO L158 Benchmark]: TraceAbstraction took 661.46ms. Allocated memory is still 332.4MB. Free memory was 230.7MB in the beginning and 260.8MB in the end (delta: -30.2MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-05 21:11:57,873 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 206.6MB. Free memory is still 154.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 444.57ms. Allocated memory is still 332.4MB. Free memory was 276.8MB in the beginning and 249.0MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 55.40ms. Allocated memory is still 332.4MB. Free memory was 249.0MB in the beginning and 246.4MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 14.39ms. Allocated memory is still 332.4MB. Free memory was 246.4MB in the beginning and 245.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 421.45ms. Allocated memory is still 332.4MB. Free memory was 245.3MB in the beginning and 231.7MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 661.46ms. Allocated memory is still 332.4MB. Free memory was 230.7MB in the beginning and 260.8MB in the end (delta: -30.2MB). 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, 75 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=129occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.2s 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 21:11:57,888 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...