/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-dev-4cc0a57-m [2025-04-14 11:37:17,429 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-14 11:37:17,485 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf [2025-04-14 11:37:17,491 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-14 11:37:17,492 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-14 11:37:17,515 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-14 11:37:17,515 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-14 11:37:17,516 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-14 11:37:17,516 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-14 11:37:17,516 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-14 11:37:17,517 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-14 11:37:17,517 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-14 11:37:17,517 INFO L153 SettingsManager]: * Use SBE=true [2025-04-14 11:37:17,517 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-14 11:37:17,517 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-14 11:37:17,517 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-14 11:37:17,517 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-14 11:37:17,517 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-14 11:37:17,517 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-14 11:37:17,517 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-14 11:37:17,517 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-14 11:37:17,517 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-14 11:37:17,518 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-14 11:37:17,518 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-14 11:37:17,518 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-14 11:37:17,518 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-14 11:37:17,518 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-14 11:37:17,518 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 11:37:17,518 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 11:37:17,518 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 11:37:17,518 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 11:37:17,518 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-14 11:37:17,518 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 11:37:17,518 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 11:37:17,518 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 11:37:17,518 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 11:37:17,518 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-14 11:37:17,518 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-14 11:37:17,518 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-14 11:37:17,518 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-14 11:37:17,518 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-14 11:37:17,519 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-14 11:37:17,519 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-14 11:37:17,519 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-14 11:37:17,519 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-14 11:37:17,519 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-14 11:37:17,519 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-14 11:37:17,519 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-14 11:37:17,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-14 11:37:17,765 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-14 11:37:17,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-14 11:37:17,767 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-14 11:37:17,768 INFO L274 PluginConnector]: CDTParser initialized [2025-04-14 11:37:17,770 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2025-04-14 11:37:19,009 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4d9530c6/d48b92a6ac004d53925104e17bd272a6/FLAG8fb83617d [2025-04-14 11:37:19,230 INFO L389 CDTParser]: Found 1 translation units. [2025-04-14 11:37:19,231 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2025-04-14 11:37:19,252 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4d9530c6/d48b92a6ac004d53925104e17bd272a6/FLAG8fb83617d [2025-04-14 11:37:20,060 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4d9530c6/d48b92a6ac004d53925104e17bd272a6 [2025-04-14 11:37:20,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-14 11:37:20,063 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-14 11:37:20,064 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-14 11:37:20,064 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-14 11:37:20,067 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-14 11:37:20,068 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 11:37:20" (1/1) ... [2025-04-14 11:37:20,068 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50d27cf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 11:37:20, skipping insertion in model container [2025-04-14 11:37:20,069 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 11:37:20" (1/1) ... [2025-04-14 11:37:20,093 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-14 11:37:20,236 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i[1103,1116] [2025-04-14 11:37:20,365 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 11:37:20,384 INFO L200 MainTranslator]: Completed pre-run [2025-04-14 11:37:20,407 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i[1103,1116] [2025-04-14 11:37:20,445 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 11:37:20,470 INFO L204 MainTranslator]: Completed translation [2025-04-14 11:37:20,471 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 11:37:20 WrapperNode [2025-04-14 11:37:20,471 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-14 11:37:20,471 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-14 11:37:20,471 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-14 11:37:20,472 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-14 11:37:20,476 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 11:37:20" (1/1) ... [2025-04-14 11:37:20,491 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 11:37:20" (1/1) ... [2025-04-14 11:37:20,508 INFO L138 Inliner]: procedures = 162, calls = 42, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 82 [2025-04-14 11:37:20,508 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-14 11:37:20,509 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-14 11:37:20,509 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-14 11:37:20,509 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-14 11:37:20,514 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 11:37:20" (1/1) ... [2025-04-14 11:37:20,514 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 11:37:20" (1/1) ... [2025-04-14 11:37:20,515 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 11:37:20" (1/1) ... [2025-04-14 11:37:20,516 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 11:37:20" (1/1) ... [2025-04-14 11:37:20,519 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 11:37:20" (1/1) ... [2025-04-14 11:37:20,519 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 11:37:20" (1/1) ... [2025-04-14 11:37:20,520 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 11:37:20" (1/1) ... [2025-04-14 11:37:20,521 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 11:37:20" (1/1) ... [2025-04-14 11:37:20,522 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 11:37:20" (1/1) ... [2025-04-14 11:37:20,527 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-14 11:37:20,528 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-14 11:37:20,528 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-14 11:37:20,528 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-14 11:37:20,529 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 11:37:20" (1/1) ... [2025-04-14 11:37:20,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 11:37:20,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 11:37:20,550 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-14 11:37:20,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-14 11:37:20,568 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2025-04-14 11:37:20,568 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2025-04-14 11:37:20,568 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-14 11:37:20,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-14 11:37:20,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-14 11:37:20,569 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-14 11:37:20,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-14 11:37:20,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-14 11:37:20,569 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-14 11:37:20,648 INFO L234 CfgBuilder]: Building ICFG [2025-04-14 11:37:20,649 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-14 11:37:20,787 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-14 11:37:20,787 INFO L283 CfgBuilder]: Performing block encoding [2025-04-14 11:37:20,892 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-14 11:37:20,892 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-14 11:37:20,893 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.04 11:37:20 BoogieIcfgContainer [2025-04-14 11:37:20,893 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-14 11:37:20,895 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-14 11:37:20,895 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-14 11:37:20,899 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-14 11:37:20,899 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.04 11:37:20" (1/3) ... [2025-04-14 11:37:20,899 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3128d666 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 11:37:20, skipping insertion in model container [2025-04-14 11:37:20,899 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 11:37:20" (2/3) ... [2025-04-14 11:37:20,899 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3128d666 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 11:37:20, skipping insertion in model container [2025-04-14 11:37:20,899 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.04 11:37:20" (3/3) ... [2025-04-14 11:37:20,900 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_29-multiple-protecting2-vesal_true.i [2025-04-14 11:37:20,910 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-14 11:37:20,911 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_29-multiple-protecting2-vesal_true.i that has 2 procedures, 48 locations, 49 edges, 1 initial locations, 0 loop locations, and 3 error locations. [2025-04-14 11:37:20,912 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-14 11:37:20,944 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-04-14 11:37:20,976 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-14 11:37:20,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-14 11:37:20,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 11:37:20,979 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-04-14 11:37:20,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-04-14 11:37:21,028 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-14 11:37:21,039 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-14 11:37:21,045 INFO L340 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@58107dbe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-14 11:37:21,045 INFO L341 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-04-14 11:37:21,328 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-04-14 11:37:21,328 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 11:37:21,328 INFO L139 ounterexampleChecker]: Examining path program with hash -469933185, occurence #1 [2025-04-14 11:37:21,328 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 11:37:21,329 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 11:37:21,331 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 11:37:21,331 INFO L85 PathProgramCache]: Analyzing trace with hash 2045199005, now seen corresponding path program 1 times [2025-04-14 11:37:21,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 11:37:21,337 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791325871] [2025-04-14 11:37:21,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 11:37:21,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 11:37:21,388 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-04-14 11:37:21,419 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-04-14 11:37:21,420 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 11:37:21,420 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 11:37:21,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 11:37:21,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 11:37:21,667 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791325871] [2025-04-14 11:37:21,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791325871] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 11:37:21,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 11:37:21,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-14 11:37:21,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100022890] [2025-04-14 11:37:21,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 11:37:21,671 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-14 11:37:21,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 11:37:21,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-14 11:37:21,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-04-14 11:37:21,685 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 11:37:21,686 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 11:37:21,686 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 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) [2025-04-14 11:37:21,686 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 11:37:21,761 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 11:37:21,761 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-14 11:37:21,761 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-04-14 11:37:21,761 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 11:37:21,761 INFO L139 ounterexampleChecker]: Examining path program with hash 1182560531, occurence #1 [2025-04-14 11:37:21,761 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 11:37:21,761 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 11:37:21,762 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 11:37:21,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1658701592, now seen corresponding path program 1 times [2025-04-14 11:37:21,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 11:37:21,762 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921741080] [2025-04-14 11:37:21,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 11:37:21,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 11:37:21,776 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-04-14 11:37:21,782 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-04-14 11:37:21,783 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 11:37:21,783 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 11:37:21,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 11:37:21,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 11:37:21,954 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921741080] [2025-04-14 11:37:21,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921741080] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 11:37:21,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 11:37:21,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-14 11:37:21,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281914053] [2025-04-14 11:37:21,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 11:37:21,955 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-14 11:37:21,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 11:37:21,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-14 11:37:21,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-04-14 11:37:21,955 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 11:37:21,955 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 11:37:21,955 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2025-04-14 11:37:21,956 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 11:37:21,956 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 11:37:22,038 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 11:37:22,039 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 11:37:22,039 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-14 11:37:22,039 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-04-14 11:37:22,039 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 11:37:22,039 INFO L139 ounterexampleChecker]: Examining path program with hash -1601962369, occurence #1 [2025-04-14 11:37:22,039 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 11:37:22,039 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 11:37:22,039 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 11:37:22,040 INFO L85 PathProgramCache]: Analyzing trace with hash 831403302, now seen corresponding path program 1 times [2025-04-14 11:37:22,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 11:37:22,040 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75251738] [2025-04-14 11:37:22,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 11:37:22,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 11:37:22,052 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-04-14 11:37:22,059 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-04-14 11:37:22,059 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 11:37:22,059 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 11:37:22,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 11:37:22,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 11:37:22,187 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75251738] [2025-04-14 11:37:22,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75251738] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 11:37:22,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 11:37:22,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-14 11:37:22,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783174491] [2025-04-14 11:37:22,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 11:37:22,187 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-14 11:37:22,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 11:37:22,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-14 11:37:22,187 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-04-14 11:37:22,188 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 11:37:22,188 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 11:37:22,188 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 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) [2025-04-14 11:37:22,188 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 11:37:22,188 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 11:37:22,188 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 11:37:22,769 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-14 11:37:22,769 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-14 11:37:22,770 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 11:37:22,770 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-14 11:37:22,770 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-04-14 11:37:22,770 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 11:37:22,770 INFO L139 ounterexampleChecker]: Examining path program with hash -1071550580, occurence #1 [2025-04-14 11:37:22,770 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 11:37:22,770 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 11:37:22,771 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 11:37:22,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1520803490, now seen corresponding path program 2 times [2025-04-14 11:37:22,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 11:37:22,771 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024744611] [2025-04-14 11:37:22,771 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-14 11:37:22,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 11:37:22,778 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 32 statements into 1 equivalence classes. [2025-04-14 11:37:22,785 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-04-14 11:37:22,786 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-14 11:37:22,786 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 11:37:22,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 11:37:22,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 11:37:22,918 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024744611] [2025-04-14 11:37:22,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024744611] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 11:37:22,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 11:37:22,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-14 11:37:22,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209615036] [2025-04-14 11:37:22,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 11:37:22,919 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-14 11:37:22,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 11:37:22,919 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-14 11:37:22,919 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-04-14 11:37:22,919 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 11:37:22,919 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 11:37:22,919 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 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) [2025-04-14 11:37:22,919 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-14 11:37:22,919 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-14 11:37:22,919 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 11:37:22,919 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 11:37:23,119 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-14 11:37:23,119 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-14 11:37:23,119 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 11:37:23,120 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 11:37:23,120 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-14 11:37:23,120 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-04-14 11:37:23,120 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 11:37:23,120 INFO L139 ounterexampleChecker]: Examining path program with hash 793089282, occurence #1 [2025-04-14 11:37:23,120 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 11:37:23,120 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 11:37:23,121 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 11:37:23,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1336854071, now seen corresponding path program 1 times [2025-04-14 11:37:23,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 11:37:23,121 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47356497] [2025-04-14 11:37:23,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 11:37:23,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 11:37:23,129 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-04-14 11:37:23,136 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-04-14 11:37:23,136 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 11:37:23,136 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 11:37:23,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 11:37:23,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 11:37:23,308 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47356497] [2025-04-14 11:37:23,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47356497] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 11:37:23,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 11:37:23,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-14 11:37:23,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409961416] [2025-04-14 11:37:23,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 11:37:23,308 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-14 11:37:23,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 11:37:23,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-14 11:37:23,309 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-04-14 11:37:23,309 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 11:37:23,309 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 11:37:23,309 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 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) [2025-04-14 11:37:23,309 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-14 11:37:23,309 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-14 11:37:23,309 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 11:37:23,309 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 11:37:23,309 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 11:37:23,761 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 11:37:23,761 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 11:37:23,761 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 11:37:23,761 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 11:37:23,761 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 11:37:23,763 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2025-04-14 11:37:23,764 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2025-04-14 11:37:23,764 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2025-04-14 11:37:23,764 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2025-04-14 11:37:23,764 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-14 11:37:23,768 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2025-04-14 11:37:23,770 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-14 11:37:23,770 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-14 11:37:23,778 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2025-04-14 11:37:23,779 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.04 11:37:23 BasicIcfg [2025-04-14 11:37:23,779 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-14 11:37:23,780 INFO L158 Benchmark]: Toolchain (without parser) took 3717.38ms. Allocated memory is still 142.6MB. Free memory was 100.4MB in the beginning and 51.3MB in the end (delta: 49.1MB). Peak memory consumption was 51.6MB. Max. memory is 8.0GB. [2025-04-14 11:37:23,780 INFO L158 Benchmark]: CDTParser took 0.81ms. Allocated memory is still 163.6MB. Free memory is still 89.0MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 11:37:23,780 INFO L158 Benchmark]: CACSL2BoogieTranslator took 407.27ms. Allocated memory is still 142.6MB. Free memory was 100.4MB in the beginning and 77.3MB in the end (delta: 23.1MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2025-04-14 11:37:23,781 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.12ms. Allocated memory is still 142.6MB. Free memory was 77.3MB in the beginning and 75.4MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 11:37:23,781 INFO L158 Benchmark]: Boogie Preprocessor took 18.74ms. Allocated memory is still 142.6MB. Free memory was 75.4MB in the beginning and 74.5MB in the end (delta: 936.1kB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 11:37:23,781 INFO L158 Benchmark]: RCFGBuilder took 365.48ms. Allocated memory is still 142.6MB. Free memory was 74.5MB in the beginning and 41.9MB in the end (delta: 32.6MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. [2025-04-14 11:37:23,781 INFO L158 Benchmark]: TraceAbstraction took 2884.78ms. Allocated memory is still 142.6MB. Free memory was 41.9MB in the beginning and 51.3MB in the end (delta: -9.4MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 11:37:23,782 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81ms. Allocated memory is still 163.6MB. Free memory is still 89.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 407.27ms. Allocated memory is still 142.6MB. Free memory was 100.4MB in the beginning and 77.3MB in the end (delta: 23.1MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 37.12ms. Allocated memory is still 142.6MB. Free memory was 77.3MB in the beginning and 75.4MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 18.74ms. Allocated memory is still 142.6MB. Free memory was 75.4MB in the beginning and 74.5MB in the end (delta: 936.1kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 365.48ms. Allocated memory is still 142.6MB. Free memory was 74.5MB in the beginning and 41.9MB in the end (delta: 32.6MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2884.78ms. Allocated memory is still 142.6MB. Free memory was 41.9MB in the beginning and 51.3MB in the end (delta: -9.4MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1017, independent: 906, independent conditional: 343, independent unconditional: 563, dependent: 111, dependent conditional: 68, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 965, independent: 906, independent conditional: 343, independent unconditional: 563, dependent: 59, dependent conditional: 16, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 965, independent: 906, independent conditional: 343, independent unconditional: 563, dependent: 59, dependent conditional: 16, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1033, independent: 906, independent conditional: 343, independent unconditional: 563, dependent: 127, dependent conditional: 84, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1033, independent: 906, independent conditional: 9, independent unconditional: 897, dependent: 127, dependent conditional: 13, dependent unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1033, independent: 906, independent conditional: 9, independent unconditional: 897, dependent: 127, dependent conditional: 13, dependent unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 626, independent: 571, independent conditional: 8, independent unconditional: 563, dependent: 55, dependent conditional: 12, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 626, independent: 529, independent conditional: 0, independent unconditional: 529, dependent: 97, dependent conditional: 0, dependent unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 97, independent: 42, independent conditional: 8, independent unconditional: 34, dependent: 55, dependent conditional: 12, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 97, independent: 42, independent conditional: 8, independent unconditional: 34, dependent: 55, dependent conditional: 12, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1048, independent: 402, independent conditional: 92, independent unconditional: 310, dependent: 646, dependent conditional: 154, dependent unconditional: 492, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 1033, independent: 335, independent conditional: 1, independent unconditional: 334, dependent: 72, dependent conditional: 1, dependent unconditional: 71, unknown: 626, unknown conditional: 20, unknown unconditional: 606] , Statistics on independence cache: Total cache size (in pairs): 626, Positive cache size: 571, Positive conditional cache size: 8, Positive unconditional cache size: 563, Negative cache size: 55, Negative conditional cache size: 12, Negative unconditional cache size: 43, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 405, Maximal queried relation: 5, Independence queries for same thread: 52, Persistent sets #1 benchmarks: Persistent set computation time: 0.9s, Number of persistent set computation: 198, Number of trivial persistent sets: 198, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 606, independent: 563, independent conditional: 0, independent unconditional: 563, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1017, independent: 906, independent conditional: 343, independent unconditional: 563, dependent: 111, dependent conditional: 68, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 965, independent: 906, independent conditional: 343, independent unconditional: 563, dependent: 59, dependent conditional: 16, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 965, independent: 906, independent conditional: 343, independent unconditional: 563, dependent: 59, dependent conditional: 16, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1033, independent: 906, independent conditional: 343, independent unconditional: 563, dependent: 127, dependent conditional: 84, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1033, independent: 906, independent conditional: 9, independent unconditional: 897, dependent: 127, dependent conditional: 13, dependent unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1033, independent: 906, independent conditional: 9, independent unconditional: 897, dependent: 127, dependent conditional: 13, dependent unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 626, independent: 571, independent conditional: 8, independent unconditional: 563, dependent: 55, dependent conditional: 12, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 626, independent: 529, independent conditional: 0, independent unconditional: 529, dependent: 97, dependent conditional: 0, dependent unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 97, independent: 42, independent conditional: 8, independent unconditional: 34, dependent: 55, dependent conditional: 12, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 97, independent: 42, independent conditional: 8, independent unconditional: 34, dependent: 55, dependent conditional: 12, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1048, independent: 402, independent conditional: 92, independent unconditional: 310, dependent: 646, dependent conditional: 154, dependent unconditional: 492, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 1033, independent: 335, independent conditional: 1, independent unconditional: 334, dependent: 72, dependent conditional: 1, dependent unconditional: 71, unknown: 626, unknown conditional: 20, unknown unconditional: 606] , Statistics on independence cache: Total cache size (in pairs): 626, Positive cache size: 571, Positive conditional cache size: 8, Positive unconditional cache size: 563, Negative cache size: 55, Negative conditional cache size: 12, Negative unconditional cache size: 43, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 405, Maximal queried relation: 5, Independence queries for same thread: 52 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 63 locations, 65 edges, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.8s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 1.7s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 30, 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, 0.8s InterpolantComputationTime, 136 NumberOfCodeBlocks, 136 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 131 ConstructedInterpolants, 0 QuantifiedInterpolants, 568 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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, ConComCheckerStatistics: SuccessfulCommutativityProofs: 0, ConComChecker Statistics: CheckTime [ms]: 0, ConditionCalculationTime [ms]: 0, ConditionCalculations: 0, QuantifiedConditions: 0, TraceChecks: 0, UnknownTraceChecks: 0, UnsatisfiedConditions: 0, ImperfectProofs: 0 - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-14 11:37:23,797 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...