/usr/bin/java -Xmx7000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.prune.known.deadend.states.from.previous.iterations false -s ../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf --traceabstraction.cegar.restart.behaviour ONLY_ONE_CEGAR -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-misc-1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dynamic-abstractions-e2ee32c-m [2023-09-08 00:53:56,279 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-09-08 00:53:56,339 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2023-09-08 00:53:56,342 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-09-08 00:53:56,342 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-09-08 00:53:56,342 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-09-08 00:53:56,367 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-08 00:53:56,367 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-08 00:53:56,368 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-08 00:53:56,370 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-08 00:53:56,370 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-08 00:53:56,371 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-08 00:53:56,371 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-09-08 00:53:56,372 INFO L153 SettingsManager]: * Use SBE=true [2023-09-08 00:53:56,372 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-08 00:53:56,372 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-08 00:53:56,372 INFO L153 SettingsManager]: * sizeof long=4 [2023-09-08 00:53:56,373 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-08 00:53:56,373 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-09-08 00:53:56,373 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-09-08 00:53:56,373 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-08 00:53:56,373 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-08 00:53:56,373 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-08 00:53:56,373 INFO L153 SettingsManager]: * sizeof long double=12 [2023-09-08 00:53:56,374 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-09-08 00:53:56,374 INFO L153 SettingsManager]: * Use constant arrays=true [2023-09-08 00:53:56,374 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-08 00:53:56,374 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-08 00:53:56,374 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-09-08 00:53:56,375 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-08 00:53:56,375 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-08 00:53:56,375 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-08 00:53:56,375 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-08 00:53:56,375 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2023-09-08 00:53:56,376 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-08 00:53:56,376 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-08 00:53:56,376 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-08 00:53:56,376 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-09-08 00:53:56,376 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-09-08 00:53:56,376 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-08 00:53:56,376 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2023-09-08 00:53:56,376 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONLY_ONE_CEGAR [2023-09-08 00:53:56,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-08 00:53:56,559 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-08 00:53:56,561 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-08 00:53:56,562 INFO L270 PluginConnector]: Initializing CDTParser... [2023-09-08 00:53:56,562 INFO L274 PluginConnector]: CDTParser initialized [2023-09-08 00:53:56,563 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-1.wvr.c [2023-09-08 00:53:57,536 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-09-08 00:53:57,669 INFO L384 CDTParser]: Found 1 translation units. [2023-09-08 00:53:57,669 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-1.wvr.c [2023-09-08 00:53:57,674 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f8eed9f9/a724a2af6cc548d0b03b73b028b56214/FLAG80de98b7b [2023-09-08 00:53:57,682 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f8eed9f9/a724a2af6cc548d0b03b73b028b56214 [2023-09-08 00:53:57,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-08 00:53:57,685 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-09-08 00:53:57,686 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-08 00:53:57,686 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-08 00:53:57,689 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-08 00:53:57,689 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 12:53:57" (1/1) ... [2023-09-08 00:53:57,690 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4213066f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:53:57, skipping insertion in model container [2023-09-08 00:53:57,690 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 12:53:57" (1/1) ... [2023-09-08 00:53:57,707 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-09-08 00:53:57,802 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-1.wvr.c[2755,2768] [2023-09-08 00:53:57,808 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-08 00:53:57,814 INFO L202 MainTranslator]: Completed pre-run [2023-09-08 00:53:57,827 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-1.wvr.c[2755,2768] [2023-09-08 00:53:57,833 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-08 00:53:57,843 INFO L206 MainTranslator]: Completed translation [2023-09-08 00:53:57,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:53:57 WrapperNode [2023-09-08 00:53:57,843 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-08 00:53:57,844 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-08 00:53:57,844 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-08 00:53:57,844 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-08 00:53:57,849 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:53:57" (1/1) ... [2023-09-08 00:53:57,854 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:53:57" (1/1) ... [2023-09-08 00:53:57,873 INFO L138 Inliner]: procedures = 23, calls = 41, calls flagged for inlining = 17, calls inlined = 31, statements flattened = 288 [2023-09-08 00:53:57,874 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-08 00:53:57,874 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-08 00:53:57,874 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-08 00:53:57,874 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-09-08 00:53:57,880 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:53:57" (1/1) ... [2023-09-08 00:53:57,880 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:53:57" (1/1) ... [2023-09-08 00:53:57,882 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:53:57" (1/1) ... [2023-09-08 00:53:57,882 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:53:57" (1/1) ... [2023-09-08 00:53:57,888 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:53:57" (1/1) ... [2023-09-08 00:53:57,891 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:53:57" (1/1) ... [2023-09-08 00:53:57,892 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:53:57" (1/1) ... [2023-09-08 00:53:57,893 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:53:57" (1/1) ... [2023-09-08 00:53:57,895 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-08 00:53:57,896 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-08 00:53:57,896 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-09-08 00:53:57,896 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-09-08 00:53:57,897 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:53:57" (1/1) ... [2023-09-08 00:53:57,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-08 00:53:57,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 00:53:57,931 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) [2023-09-08 00:53:57,933 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 [2023-09-08 00:53:57,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-08 00:53:57,957 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-09-08 00:53:57,957 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-09-08 00:53:57,957 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-09-08 00:53:57,957 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-09-08 00:53:57,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-08 00:53:57,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-08 00:53:57,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-08 00:53:57,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-09-08 00:53:57,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-08 00:53:57,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-08 00:53:57,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-08 00:53:57,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-08 00:53:57,959 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-08 00:53:58,027 INFO L236 CfgBuilder]: Building ICFG [2023-09-08 00:53:58,028 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-08 00:53:58,315 INFO L277 CfgBuilder]: Performing block encoding [2023-09-08 00:53:58,322 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-08 00:53:58,322 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-09-08 00:53:58,323 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 12:53:58 BoogieIcfgContainer [2023-09-08 00:53:58,323 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-08 00:53:58,325 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-08 00:53:58,325 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-09-08 00:53:58,327 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-09-08 00:53:58,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 12:53:57" (1/3) ... [2023-09-08 00:53:58,327 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e928a8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 12:53:58, skipping insertion in model container [2023-09-08 00:53:58,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:53:57" (2/3) ... [2023-09-08 00:53:58,328 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e928a8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 12:53:58, skipping insertion in model container [2023-09-08 00:53:58,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 12:53:58" (3/3) ... [2023-09-08 00:53:58,328 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-1.wvr.c [2023-09-08 00:53:58,333 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-08 00:53:58,339 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-08 00:53:58,339 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-09-08 00:53:58,339 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-08 00:53:58,421 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-09-08 00:53:58,459 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-08 00:53:58,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-09-08 00:53:58,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 00:53:58,461 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) [2023-09-08 00:53:58,462 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 [2023-09-08 00:53:58,487 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-09-08 00:53:58,492 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-08 00:53:58,496 INFO L357 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=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@6c9d288c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-08 00:53:58,496 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. Found a loop, use abstraction hammer [2023-09-08 00:56:09,649 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-08 00:56:09,652 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-08 00:56:09,653 INFO L85 PathProgramCache]: Analyzing trace with hash 192648784, now seen corresponding path program 1 times [2023-09-08 00:56:09,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-08 00:56:09,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277945447] [2023-09-08 00:56:09,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-08 00:56:09,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-08 00:56:09,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-08 00:56:09,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-08 00:56:09,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-08 00:56:09,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277945447] [2023-09-08 00:56:09,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277945447] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-08 00:56:09,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-08 00:56:09,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-08 00:56:09,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441835301] [2023-09-08 00:56:09,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-08 00:56:09,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-09-08 00:56:09,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-08 00:56:09,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-09-08 00:56:09,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-09-08 00:56:09,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-08 00:56:09,918 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-08 00:56:09,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 79.0) internal successors, (158), 2 states have internal predecessors, (158), 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) [2023-09-08 00:56:09,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2023-09-08 00:58:33,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-08 00:58:33,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-08 00:58:33,820 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-08 00:58:33,820 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-08 00:58:33,820 INFO L85 PathProgramCache]: Analyzing trace with hash 781578193, now seen corresponding path program 1 times [2023-09-08 00:58:33,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-08 00:58:33,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791982412] [2023-09-08 00:58:33,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-08 00:58:33,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-08 00:58:33,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-08 00:58:34,376 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-08 00:58:34,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-08 00:58:34,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791982412] [2023-09-08 00:58:34,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791982412] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-08 00:58:34,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [174088330] [2023-09-08 00:58:34,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-08 00:58:34,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-08 00:58:34,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 00:58:34,407 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-08 00:58:34,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-09-08 00:58:34,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-08 00:58:34,521 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 10 conjunts are in the unsatisfiable core [2023-09-08 00:58:34,530 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-08 00:58:34,745 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-08 00:58:34,746 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-08 00:58:34,901 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-08 00:58:34,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [174088330] provided 1 perfect and 1 imperfect interpolant sequences [2023-09-08 00:58:34,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-09-08 00:58:34,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 19 [2023-09-08 00:58:34,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896793282] [2023-09-08 00:58:34,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-08 00:58:34,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-09-08 00:58:34,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-08 00:58:34,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-09-08 00:58:34,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2023-09-08 00:58:34,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-08 00:58:34,907 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-08 00:58:34,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.555555555555557) internal successors, (158), 9 states have internal predecessors, (158), 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) [2023-09-08 00:58:34,907 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-08 00:58:34,908 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2023-09-08 00:58:35,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-08 00:58:35,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-08 00:58:35,242 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-09-08 00:58:35,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-09-08 00:58:35,442 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-08 00:58:35,443 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-08 00:58:35,443 INFO L85 PathProgramCache]: Analyzing trace with hash -449334273, now seen corresponding path program 1 times [2023-09-08 00:58:35,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-08 00:58:35,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503674178] [2023-09-08 00:58:35,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-08 00:58:35,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-08 00:58:35,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-08 00:58:35,737 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-09-08 00:58:35,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-08 00:58:35,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503674178] [2023-09-08 00:58:35,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503674178] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-08 00:58:35,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [96806661] [2023-09-08 00:58:35,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-08 00:58:35,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-08 00:58:35,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 00:58:35,739 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-08 00:58:35,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-09-08 00:58:35,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-08 00:58:35,844 INFO L262 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 14 conjunts are in the unsatisfiable core [2023-09-08 00:58:35,854 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-08 00:58:36,133 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-08 00:58:36,133 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-08 00:58:36,393 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-08 00:58:36,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [96806661] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-08 00:58:36,395 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-08 00:58:36,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 13, 13] total 27 [2023-09-08 00:58:36,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013895261] [2023-09-08 00:58:36,396 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-08 00:58:36,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-09-08 00:58:36,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-08 00:58:36,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-09-08 00:58:36,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=588, Unknown=0, NotChecked=0, Total=702 [2023-09-08 00:58:36,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-08 00:58:36,399 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-08 00:58:36,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 15.37037037037037) internal successors, (415), 27 states have internal predecessors, (415), 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) [2023-09-08 00:58:36,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-08 00:58:36,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-09-08 00:58:36,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2023-09-08 01:05:30,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-08 01:05:30,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-08 01:05:30,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-09-08 01:05:30,571 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-09-08 01:05:30,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-08 01:05:30,770 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-08 01:05:30,770 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-08 01:05:30,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1340115511, now seen corresponding path program 1 times [2023-09-08 01:05:30,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-08 01:05:30,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137793549] [2023-09-08 01:05:30,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-08 01:05:30,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-08 01:05:30,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-08 01:05:31,344 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 1 proven. 46 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-09-08 01:05:31,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-08 01:05:31,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137793549] [2023-09-08 01:05:31,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137793549] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-08 01:05:31,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981927247] [2023-09-08 01:05:31,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-08 01:05:31,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-08 01:05:31,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 01:05:31,358 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-08 01:05:31,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-09-08 01:05:31,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-08 01:05:31,521 INFO L262 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 16 conjunts are in the unsatisfiable core [2023-09-08 01:05:31,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-08 01:05:32,246 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 10 proven. 18 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-09-08 01:05:32,247 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-08 01:05:32,809 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 27 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-09-08 01:05:32,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981927247] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-08 01:05:32,809 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-08 01:05:32,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 15, 15] total 33 [2023-09-08 01:05:32,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538793968] [2023-09-08 01:05:32,810 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-08 01:05:32,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-09-08 01:05:32,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-08 01:05:32,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-09-08 01:05:32,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=881, Unknown=0, NotChecked=0, Total=1056 [2023-09-08 01:05:32,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-08 01:05:32,811 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-08 01:05:32,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 16.12121212121212) internal successors, (532), 33 states have internal predecessors, (532), 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) [2023-09-08 01:05:32,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-08 01:05:32,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-09-08 01:05:32,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-09-08 01:05:32,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Received shutdown request... [2023-09-08 01:08:35,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-09-08 01:08:35,263 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-09-08 01:08:35,278 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-09-08 01:08:35,289 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-09-08 01:08:35,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-08 01:08:35,452 WARN L619 AbstractCegarLoop]: Verification canceled: while executing DynamicStratifiedReduction. [2023-09-08 01:08:35,454 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-09-08 01:08:35,454 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-09-08 01:08:35,454 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-09-08 01:08:35,497 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-09-08 01:08:35,500 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-08 01:08:35,500 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-08 01:08:35,502 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:08:35 BasicIcfg [2023-09-08 01:08:35,502 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-08 01:08:35,503 INFO L158 Benchmark]: Toolchain (without parser) took 877817.89ms. Allocated memory was 228.6MB in the beginning and 274.7MB in the end (delta: 46.1MB). Free memory was 179.4MB in the beginning and 76.3MB in the end (delta: 103.0MB). Peak memory consumption was 205.2MB. Max. memory is 7.0GB. [2023-09-08 01:08:35,503 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 174.1MB. Free memory is still 126.0MB. There was no memory consumed. Max. memory is 7.0GB. [2023-09-08 01:08:35,503 INFO L158 Benchmark]: CACSL2BoogieTranslator took 157.78ms. Allocated memory is still 228.6MB. Free memory was 179.4MB in the beginning and 167.3MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 7.0GB. [2023-09-08 01:08:35,507 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.60ms. Allocated memory is still 228.6MB. Free memory was 167.3MB in the beginning and 164.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 7.0GB. [2023-09-08 01:08:35,507 INFO L158 Benchmark]: Boogie Preprocessor took 21.36ms. Allocated memory is still 228.6MB. Free memory was 164.7MB in the beginning and 162.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 7.0GB. [2023-09-08 01:08:35,508 INFO L158 Benchmark]: RCFGBuilder took 427.66ms. Allocated memory is still 228.6MB. Free memory was 162.6MB in the beginning and 136.7MB in the end (delta: 25.9MB). Peak memory consumption was 26.2MB. Max. memory is 7.0GB. [2023-09-08 01:08:35,508 INFO L158 Benchmark]: TraceAbstraction took 877177.60ms. Allocated memory was 228.6MB in the beginning and 274.7MB in the end (delta: 46.1MB). Free memory was 136.0MB in the beginning and 76.3MB in the end (delta: 59.7MB). Peak memory consumption was 161.2MB. Max. memory is 7.0GB. [2023-09-08 01:08:35,509 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 174.1MB. Free memory is still 126.0MB. There was no memory consumed. Max. memory is 7.0GB. * CACSL2BoogieTranslator took 157.78ms. Allocated memory is still 228.6MB. Free memory was 179.4MB in the beginning and 167.3MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 7.0GB. * Boogie Procedure Inliner took 29.60ms. Allocated memory is still 228.6MB. Free memory was 167.3MB in the beginning and 164.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 7.0GB. * Boogie Preprocessor took 21.36ms. Allocated memory is still 228.6MB. Free memory was 164.7MB in the beginning and 162.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 7.0GB. * RCFGBuilder took 427.66ms. Allocated memory is still 228.6MB. Free memory was 162.6MB in the beginning and 136.7MB in the end (delta: 25.9MB). Peak memory consumption was 26.2MB. Max. memory is 7.0GB. * TraceAbstraction took 877177.60ms. Allocated memory was 228.6MB in the beginning and 274.7MB in the end (delta: 46.1MB). Free memory was 136.0MB in the beginning and 76.3MB in the end (delta: 59.7MB). Peak memory consumption was 161.2MB. Max. memory is 7.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 40176, independent: 37092, independent conditional: 37092, independent unconditional: 0, dependent: 3084, dependent conditional: 3084, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 37092, independent: 37092, independent conditional: 37092, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 37092, independent: 37092, independent conditional: 37092, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 37092, independent: 37092, independent conditional: 0, independent unconditional: 37092, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 37092, independent: 37092, independent conditional: 0, independent unconditional: 37092, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 37092, independent: 37092, independent conditional: 0, independent unconditional: 37092, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 37092, independent: 37092, independent conditional: 0, independent unconditional: 37092, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 37092, independent: 37092, independent conditional: 0, independent unconditional: 37092, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 37092, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 37092, unknown conditional: 0, unknown unconditional: 37092] , Statistics on independence cache: Total cache size (in pairs): 37092, Positive cache size: 37092, Positive conditional cache size: 0, Positive unconditional cache size: 37092, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 3084 - StatisticsResult: Proof manager benchmarks IrresponsibleProofs: 4, RedundantProofs: 2, ProvenStates: 2979 - TimeoutResultAtElement [Line: 103]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing DynamicStratifiedReduction. - TimeoutResultAtElement [Line: 98]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DynamicStratifiedReduction. - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DynamicStratifiedReduction. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 514 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 877.0s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 872.0s, 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: 73, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 1506 NumberOfCodeBlocks, 1506 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 2170 ConstructedInterpolants, 0 QuantifiedInterpolants, 6862 SizeOfPredicates, 62 NumberOfNonLiveVariables, 1306 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 10 InterpolantComputations, 2 PerfectInterpolantSequences, 179/258 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown