/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.prune.known.deadend.states.from.previous.iterations false -s ../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-buffer-series2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.dynamic-abstractions-57af04c-m [2024-01-26 01:39:23,760 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-26 01:39:23,821 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2024-01-26 01:39:23,825 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-26 01:39:23,826 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-26 01:39:23,826 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-01-26 01:39:23,845 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-26 01:39:23,846 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-26 01:39:23,846 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-26 01:39:23,847 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-26 01:39:23,847 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-26 01:39:23,847 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-26 01:39:23,848 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-26 01:39:23,848 INFO L153 SettingsManager]: * Use SBE=true [2024-01-26 01:39:23,849 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-26 01:39:23,849 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-26 01:39:23,849 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-26 01:39:23,854 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-26 01:39:23,855 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-26 01:39:23,855 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-26 01:39:23,857 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-26 01:39:23,857 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-26 01:39:23,858 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-26 01:39:23,859 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-26 01:39:23,860 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-26 01:39:23,860 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-26 01:39:23,860 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-26 01:39:23,861 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-26 01:39:23,861 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-01-26 01:39:23,861 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-26 01:39:23,862 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-01-26 01:39:23,862 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-26 01:39:23,862 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-26 01:39:23,863 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2024-01-26 01:39:23,863 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2024-01-26 01:39:23,863 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-26 01:39:23,863 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-26 01:39:23,863 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-26 01:39:23,863 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-01-26 01:39:23,864 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-26 01:39:23,864 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2024-01-26 01:39:23,864 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/UGemCutter-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2024-01-26 01:39:24,087 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-26 01:39:24,109 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-26 01:39:24,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-26 01:39:24,112 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-26 01:39:24,112 INFO L274 PluginConnector]: CDTParser initialized [2024-01-26 01:39:24,113 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-more-buffer-series2.wvr.c [2024-01-26 01:39:25,190 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-26 01:39:25,364 INFO L384 CDTParser]: Found 1 translation units. [2024-01-26 01:39:25,365 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-buffer-series2.wvr.c [2024-01-26 01:39:25,371 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/07a8fc16b/93a80659db0443859aee7ffdb12369a1/FLAG37b5404e8 [2024-01-26 01:39:25,386 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/07a8fc16b/93a80659db0443859aee7ffdb12369a1 [2024-01-26 01:39:25,389 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-26 01:39:25,391 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-26 01:39:25,395 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-26 01:39:25,395 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-26 01:39:25,399 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-26 01:39:25,399 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 01:39:25" (1/1) ... [2024-01-26 01:39:25,400 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5163f92a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:39:25, skipping insertion in model container [2024-01-26 01:39:25,400 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 01:39:25" (1/1) ... [2024-01-26 01:39:25,436 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-26 01:39:25,635 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-buffer-series2.wvr.c[4284,4297] [2024-01-26 01:39:25,651 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 01:39:25,662 INFO L202 MainTranslator]: Completed pre-run [2024-01-26 01:39:25,705 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-buffer-series2.wvr.c[4284,4297] [2024-01-26 01:39:25,707 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 01:39:25,722 INFO L206 MainTranslator]: Completed translation [2024-01-26 01:39:25,722 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:39:25 WrapperNode [2024-01-26 01:39:25,722 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-26 01:39:25,724 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-26 01:39:25,724 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-26 01:39:25,724 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-26 01:39:25,730 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:39:25" (1/1) ... [2024-01-26 01:39:25,752 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:39:25" (1/1) ... [2024-01-26 01:39:25,784 INFO L138 Inliner]: procedures = 27, calls = 83, calls flagged for inlining = 22, calls inlined = 28, statements flattened = 360 [2024-01-26 01:39:25,785 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-26 01:39:25,785 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-26 01:39:25,786 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-26 01:39:25,786 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-26 01:39:25,793 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:39:25" (1/1) ... [2024-01-26 01:39:25,793 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:39:25" (1/1) ... [2024-01-26 01:39:25,797 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:39:25" (1/1) ... [2024-01-26 01:39:25,797 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:39:25" (1/1) ... [2024-01-26 01:39:25,809 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:39:25" (1/1) ... [2024-01-26 01:39:25,813 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:39:25" (1/1) ... [2024-01-26 01:39:25,815 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:39:25" (1/1) ... [2024-01-26 01:39:25,816 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:39:25" (1/1) ... [2024-01-26 01:39:25,820 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-26 01:39:25,821 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-26 01:39:25,821 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-26 01:39:25,821 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-26 01:39:25,821 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:39:25" (1/1) ... [2024-01-26 01:39:25,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-01-26 01:39:25,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 01:39:25,848 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-01-26 01:39:25,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-01-26 01:39:25,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-26 01:39:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-26 01:39:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-01-26 01:39:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-01-26 01:39:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-26 01:39:25,884 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-26 01:39:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-26 01:39:25,884 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-26 01:39:25,885 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-26 01:39:25,885 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-26 01:39:25,885 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-01-26 01:39:25,886 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-01-26 01:39:25,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-01-26 01:39:25,887 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-26 01:39:25,887 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-26 01:39:25,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-01-26 01:39:25,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-26 01:39:25,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-26 01:39:25,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-26 01:39:25,889 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-26 01:39:26,032 INFO L241 CfgBuilder]: Building ICFG [2024-01-26 01:39:26,034 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-26 01:39:26,589 INFO L282 CfgBuilder]: Performing block encoding [2024-01-26 01:39:26,779 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-26 01:39:26,780 INFO L309 CfgBuilder]: Removed 7 assume(true) statements. [2024-01-26 01:39:26,781 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 01:39:26 BoogieIcfgContainer [2024-01-26 01:39:26,781 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-26 01:39:26,783 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-26 01:39:26,783 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-26 01:39:26,785 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-26 01:39:26,785 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 01:39:25" (1/3) ... [2024-01-26 01:39:26,787 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dd0d4ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 01:39:26, skipping insertion in model container [2024-01-26 01:39:26,787 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:39:25" (2/3) ... [2024-01-26 01:39:26,788 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dd0d4ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 01:39:26, skipping insertion in model container [2024-01-26 01:39:26,788 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 01:39:26" (3/3) ... [2024-01-26 01:39:26,790 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-series2.wvr.c [2024-01-26 01:39:26,797 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-01-26 01:39:26,805 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-26 01:39:26,806 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-01-26 01:39:26,806 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-26 01:39:26,900 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-01-26 01:39:26,937 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-26 01:39:26,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-01-26 01:39:26,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 01:39:26,940 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-01-26 01:39:26,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-01-26 01:39:26,982 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-01-26 01:39:26,989 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2024-01-26 01:39:26,993 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;@7f8b9afd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-26 01:39:26,993 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. Found a loop, use abstraction hammer [2024-01-26 01:39:45,881 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 01:39:45,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 01:39:45,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1889651268, now seen corresponding path program 1 times [2024-01-26 01:39:45,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 01:39:45,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214113284] [2024-01-26 01:39:45,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:39:45,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 01:39:46,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:39:46,233 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-01-26 01:39:46,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 01:39:46,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214113284] [2024-01-26 01:39:46,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214113284] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 01:39:46,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 01:39:46,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-26 01:39:46,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140062650] [2024-01-26 01:39:46,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 01:39:46,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-01-26 01:39:46,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 01:39:46,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-01-26 01:39:46,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-01-26 01:39:46,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:39:46,269 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 01:39:46,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 110.0) internal successors, (220), 2 states have internal predecessors, (220), 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) [2024-01-26 01:39:46,270 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 [2024-01-26 01:40:01,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:40:01,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-26 01:40:01,652 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 01:40:01,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 01:40:01,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1245076290, now seen corresponding path program 1 times [2024-01-26 01:40:01,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 01:40:01,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903062522] [2024-01-26 01:40:01,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:40:01,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 01:40:01,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:40:02,216 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-01-26 01:40:02,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 01:40:02,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903062522] [2024-01-26 01:40:02,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903062522] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 01:40:02,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 01:40:02,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-26 01:40:02,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670170136] [2024-01-26 01:40:02,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 01:40:02,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-26 01:40:02,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 01:40:02,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-26 01:40:02,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-01-26 01:40:02,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:40:02,225 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 01:40:02,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 36.666666666666664) internal successors, (220), 6 states have internal predecessors, (220), 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) [2024-01-26 01:40:02,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:40:02,225 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 [2024-01-26 01:40:24,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:40:24,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-26 01:40:24,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-26 01:40:24,468 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 01:40:24,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 01:40:24,469 INFO L85 PathProgramCache]: Analyzing trace with hash -734839003, now seen corresponding path program 1 times [2024-01-26 01:40:24,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 01:40:24,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199229069] [2024-01-26 01:40:24,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:40:24,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 01:40:24,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:40:25,202 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-01-26 01:40:25,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 01:40:25,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199229069] [2024-01-26 01:40:25,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199229069] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 01:40:25,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 01:40:25,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-01-26 01:40:25,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225116949] [2024-01-26 01:40:25,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 01:40:25,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-01-26 01:40:25,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 01:40:25,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-01-26 01:40:25,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-01-26 01:40:25,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:40:25,218 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 01:40:25,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 28.5) internal successors, (228), 8 states have internal predecessors, (228), 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) [2024-01-26 01:40:25,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:40:25,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-01-26 01:40:25,219 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 [2024-01-26 01:40:29,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:40:29,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-26 01:40:29,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-01-26 01:40:29,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-26 01:40:29,053 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 01:40:29,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 01:40:29,053 INFO L85 PathProgramCache]: Analyzing trace with hash 264641335, now seen corresponding path program 1 times [2024-01-26 01:40:29,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 01:40:29,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843391018] [2024-01-26 01:40:29,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:40:29,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 01:40:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:40:29,510 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-01-26 01:40:29,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 01:40:29,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843391018] [2024-01-26 01:40:29,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843391018] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 01:40:29,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [395919488] [2024-01-26 01:40:29,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:40:29,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 01:40:29,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 01:40:29,558 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-26 01:40:29,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-01-26 01:40:29,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:40:29,745 INFO L262 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 9 conjunts are in the unsatisfiable core [2024-01-26 01:40:29,757 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 01:40:30,026 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-01-26 01:40:30,028 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 01:40:30,332 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-01-26 01:40:30,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [395919488] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 01:40:30,333 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 01:40:30,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2024-01-26 01:40:30,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230143638] [2024-01-26 01:40:30,338 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 01:40:30,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-01-26 01:40:30,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 01:40:30,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-01-26 01:40:30,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2024-01-26 01:40:30,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:40:30,341 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 01:40:30,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.578947368421053) internal successors, (296), 19 states have internal predecessors, (296), 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) [2024-01-26 01:40:30,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:40:30,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-01-26 01:40:30,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-01-26 01:40:30,341 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 [2024-01-26 01:40:34,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:40:34,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-26 01:40:34,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-01-26 01:40:34,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-01-26 01:40:34,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-01-26 01:40:34,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 01:40:34,319 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 01:40:34,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 01:40:34,319 INFO L85 PathProgramCache]: Analyzing trace with hash -137730233, now seen corresponding path program 2 times [2024-01-26 01:40:34,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 01:40:34,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951268712] [2024-01-26 01:40:34,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:40:34,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 01:40:34,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:40:34,782 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-01-26 01:40:34,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 01:40:34,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951268712] [2024-01-26 01:40:34,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951268712] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 01:40:34,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470007405] [2024-01-26 01:40:34,783 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-01-26 01:40:34,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 01:40:34,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 01:40:34,784 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-26 01:40:34,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-01-26 01:40:34,971 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-01-26 01:40:34,971 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-26 01:40:34,974 INFO L262 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 15 conjunts are in the unsatisfiable core [2024-01-26 01:40:34,983 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 01:40:35,883 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-01-26 01:40:35,883 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 01:40:36,378 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-01-26 01:40:36,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [470007405] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 01:40:36,378 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 01:40:36,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 13, 11] total 23 [2024-01-26 01:40:36,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697667624] [2024-01-26 01:40:36,379 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 01:40:36,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-01-26 01:40:36,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 01:40:36,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-01-26 01:40:36,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=367, Unknown=0, NotChecked=0, Total=506 [2024-01-26 01:40:36,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:40:36,381 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 01:40:36,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 22.565217391304348) internal successors, (519), 23 states have internal predecessors, (519), 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) [2024-01-26 01:40:36,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:40:36,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-01-26 01:40:36,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-01-26 01:40:36,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-01-26 01:40:36,382 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... [2024-01-26 01:53:49,932 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2024-01-26 01:53:49,932 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 [2024-01-26 01:53:49,932 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2024-01-26 01:53:50,227 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-01-26 01:53:50,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 01:53:50,422 WARN L619 AbstractCegarLoop]: Verification canceled: while executing DynamicStratifiedReduction. [2024-01-26 01:53:50,424 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-01-26 01:53:50,494 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2024-01-26 01:53:50,496 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was TIMEOUT (1/5) [2024-01-26 01:53:50,498 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-26 01:53:50,498 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-26 01:53:50,500 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.01 01:53:50 BasicIcfg [2024-01-26 01:53:50,500 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-26 01:53:50,500 INFO L158 Benchmark]: Toolchain (without parser) took 865109.28ms. Allocated memory was 181.4MB in the beginning and 817.9MB in the end (delta: 636.5MB). Free memory was 132.9MB in the beginning and 171.2MB in the end (delta: -38.4MB). Peak memory consumption was 719.6MB. Max. memory is 8.0GB. [2024-01-26 01:53:50,501 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 181.4MB. Free memory is still 134.6MB. There was no memory consumed. Max. memory is 8.0GB. [2024-01-26 01:53:50,501 INFO L158 Benchmark]: CACSL2BoogieTranslator took 327.77ms. Allocated memory is still 181.4MB. Free memory was 132.5MB in the beginning and 119.2MB in the end (delta: 13.3MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2024-01-26 01:53:50,501 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.12ms. Allocated memory is still 181.4MB. Free memory was 119.2MB in the beginning and 116.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2024-01-26 01:53:50,502 INFO L158 Benchmark]: Boogie Preprocessor took 34.54ms. Allocated memory is still 181.4MB. Free memory was 116.1MB in the beginning and 113.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-01-26 01:53:50,502 INFO L158 Benchmark]: RCFGBuilder took 960.40ms. Allocated memory was 181.4MB in the beginning and 266.3MB in the end (delta: 84.9MB). Free memory was 113.6MB in the beginning and 200.8MB in the end (delta: -87.2MB). Peak memory consumption was 35.2MB. Max. memory is 8.0GB. [2024-01-26 01:53:50,502 INFO L158 Benchmark]: TraceAbstraction took 863717.31ms. Allocated memory was 266.3MB in the beginning and 817.9MB in the end (delta: 551.6MB). Free memory was 199.8MB in the beginning and 171.2MB in the end (delta: 28.5MB). Peak memory consumption was 701.2MB. Max. memory is 8.0GB. [2024-01-26 01:53:50,507 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 181.4MB. Free memory is still 134.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 327.77ms. Allocated memory is still 181.4MB. Free memory was 132.5MB in the beginning and 119.2MB in the end (delta: 13.3MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 61.12ms. Allocated memory is still 181.4MB. Free memory was 119.2MB in the beginning and 116.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.54ms. Allocated memory is still 181.4MB. Free memory was 116.1MB in the beginning and 113.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 960.40ms. Allocated memory was 181.4MB in the beginning and 266.3MB in the end (delta: 84.9MB). Free memory was 113.6MB in the beginning and 200.8MB in the end (delta: -87.2MB). Peak memory consumption was 35.2MB. Max. memory is 8.0GB. * TraceAbstraction took 863717.31ms. Allocated memory was 266.3MB in the beginning and 817.9MB in the end (delta: 551.6MB). Free memory was 199.8MB in the beginning and 171.2MB in the end (delta: 28.5MB). Peak memory consumption was 701.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 93314, independent: 87928, independent conditional: 87928, independent unconditional: 0, dependent: 5386, dependent conditional: 5386, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 88287, independent: 87928, independent conditional: 87928, independent unconditional: 0, dependent: 359, dependent conditional: 359, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 88287, independent: 87928, independent conditional: 87928, independent unconditional: 0, dependent: 359, dependent conditional: 359, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 89284, independent: 87928, independent conditional: 0, independent unconditional: 87928, dependent: 1356, dependent conditional: 997, dependent unconditional: 359, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 89284, independent: 87928, independent conditional: 0, independent unconditional: 87928, dependent: 1356, dependent conditional: 0, dependent unconditional: 1356, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 89284, independent: 87928, independent conditional: 0, independent unconditional: 87928, dependent: 1356, dependent conditional: 0, dependent unconditional: 1356, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 88287, independent: 87928, independent conditional: 0, independent unconditional: 87928, dependent: 359, dependent conditional: 0, dependent unconditional: 359, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 88287, independent: 87928, independent conditional: 0, independent unconditional: 87928, dependent: 359, dependent conditional: 0, dependent unconditional: 359, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 359, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 359, dependent conditional: 0, dependent unconditional: 359, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 359, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 359, dependent conditional: 0, dependent unconditional: 359, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 359, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 359, dependent conditional: 0, dependent unconditional: 359, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1613, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1613, dependent conditional: 0, dependent unconditional: 1613, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 89284, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 997, dependent conditional: 0, dependent unconditional: 997, unknown: 88287, unknown conditional: 0, unknown unconditional: 88287] , Statistics on independence cache: Total cache size (in pairs): 88287, Positive cache size: 87928, Positive conditional cache size: 0, Positive unconditional cache size: 87928, Negative cache size: 359, Negative conditional cache size: 0, Negative unconditional cache size: 359, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 997, Maximal queried relation: 5, Independence queries for same thread: 5027 - StatisticsResult: Proof manager benchmarks IrresponsibleProofs: 9, RedundantProofs: 3, ProvenStates: 4682, Times there's more than one choice: 3829, Avg number of choices: 3.6055104656129857 - StatisticsResult: Reduction benchmarks 0.2s Time before loop, 3.6s Time in loop, 3.8s Time in total, Has Loop: true, Protected Variables: [write~init~int_#value, ULTIMATE.start_create_fresh_int_array_~arr~0#1.base, ULTIMATE.start_main_~#t4~0#1.offset, ULTIMATE.start_create_fresh_int_array_~i~1#1, thread3Thread1of1ForFork1_plus_~a#1, thread3Thread1of1ForFork1_plus_~b#1, thread2Thread1of1ForFork0_thidvar0, old(thread2Thread1of1ForFork0_thidvar0), thread2Thread1of1ForFork0_thidvar1, old(thread2Thread1of1ForFork0_thidvar1), thread2Thread1of1ForFork0_thidvar2, old(thread2Thread1of1ForFork0_thidvar2), thread4Thread1of1ForFork3_#in~_argptr#1.offset, thread1Thread1of1ForFork2_thidvar0, old(thread1Thread1of1ForFork2_thidvar0), thread1Thread1of1ForFork2_thidvar1, old(thread1Thread1of1ForFork2_thidvar1), write~int_#ptr.base, #Ultimate.allocOnHeap_#res.offset, thread1_#res#1.base, thread2_#res#1.base, thread3_#res#1.base, thread4_#res#1.base, ~q2_back~0, old(~q2_back~0), thread2Thread1of1ForFork0_~_argptr#1.base, thread3_plus_#res#1, thread4_plus_#res#1, thread1_#t~mem1#1, thread1_#t~mem2#1, thread2_#t~mem5#1, thread2_#t~mem6#1, thread2_#t~mem7#1, ULTIMATE.start_main_#t~mem32#1, ULTIMATE.start_main_#t~mem33#1, ULTIMATE.start_main_#t~mem34#1, ULTIMATE.start_main_#t~mem35#1, ULTIMATE.start_main_#res#1, thread3Thread1of1ForFork1_~cond~2#1, thread4Thread1of1ForFork3_thidvar0, old(thread4Thread1of1ForFork3_thidvar0), thread4Thread1of1ForFork3_thidvar1, old(thread4Thread1of1ForFork3_thidvar1), thread4Thread1of1ForFork3_thidvar2, old(thread4Thread1of1ForFork3_thidvar2), thread4Thread1of1ForFork3_thidvar3, old(thread4Thread1of1ForFork3_thidvar3), thread4Thread1of1ForFork3_thidvar4, old(thread4Thread1of1ForFork3_thidvar4), thread2Thread1of1ForFork0_#res#1.offset, ULTIMATE.start_create_fresh_int_array_#res#1.base, ULTIMATE.start_create_fresh_int_array_~size#1, thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1, ULTIMATE.start_main_~#t3~0#1.offset, ~q1~0.offset, old(~q1~0.offset), thread3Thread1of1ForFork1_~_argptr#1.offset, ULTIMATE.start_create_fresh_int_array_#res#1.offset, thread4Thread1of1ForFork3_#in~_argptr#1.base, thread1Thread1of1ForFork2_#res#1.base, thread1_~_argptr#1.base, thread2_~_argptr#1.base, thread3_~_argptr#1.base, thread4_~_argptr#1.base, thread3_plus_#in~a#1, thread4_plus_#in~a#1, thread3_plus_#in~b#1, thread4_plus_#in~b#1, thread1Thread1of1ForFork2_#t~mem1#1, thread1Thread1of1ForFork2_#t~mem2#1, read~int_#ptr.base, ULTIMATE.start_#t~ret39#1, ULTIMATE.start_main_#t~ret23#1.base, ~f~0.base, old(~f~0.base), ULTIMATE.start_create_fresh_int_array_#in~size#1, thread1_#res#1.offset, thread2_#res#1.offset, thread3_#res#1.offset, thread4_#res#1.offset, ULTIMATE.start_create_fresh_int_array_#t~nondet38#1, thread4Thread1of1ForFork3_#t~post15#1, ULTIMATE.start_main_#t~ret22#1.base, thread3Thread1of1ForFork1_#in~_argptr#1.offset, thread1Thread1of1ForFork2_~_argptr#1.base, ULTIMATE.start_main_~#t2~0#1.offset, ULTIMATE.start_create_fresh_int_array_#t~malloc36#1.base, thread3_#t~ret11#1, thread4_#t~ret14#1, #Ultimate.allocOnStack_~size, ULTIMATE.start_main_#t~ret21#1.base, ~total~0, old(~total~0), thread2Thread1of1ForFork0_~cond~1#1, thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1, thread1Thread1of1ForFork2_#res#1.offset, thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1, thread2Thread1of1ForFork0_#t~post8#1, thread2Thread1of1ForFork0_#t~post9#1, read~int_#sizeOfReadType, thread3_plus_~a#1, thread4_plus_~a#1, thread3_plus_~b#1, thread4_plus_~b#1, write~init~int_#sizeOfWrittenType, thread2Thread1of1ForFork0_~_argptr#1.offset, thread3Thread1of1ForFork1_#in~_argptr#1.base, ULTIMATE.start_main_~#t1~0#1.offset, ~n1~0, old(~n1~0), ~n2~0, old(~n2~0), ~q1~0.base, old(~q1~0.base), thread1_~cond~0#1, thread2_~cond~1#1, thread3_~cond~2#1, thread4_~cond~3#1, thread1_#t~post3#1, thread1_#t~post4#1, thread2_#t~post8#1, thread2_#t~post9#1, thread3Thread1of1ForFork1_#t~post12#1, ULTIMATE.start_main_#t~pre24#1, ULTIMATE.start_main_#t~pre26#1, ULTIMATE.start_main_#t~pre28#1, ULTIMATE.start_main_#t~pre30#1, #Ultimate.allocOnStack_#res.offset, thread2Thread1of1ForFork0_#in~_argptr#1.offset, ULTIMATE.dealloc_~addr.offset, thread1_~_argptr#1.offset, thread2_~_argptr#1.offset, thread3_~_argptr#1.offset, thread4_~_argptr#1.offset, thread4Thread1of1ForFork3_#t~mem13#1, write~int_#value, write~init~int_#ptr.offset, ULTIMATE.dealloc_~addr.base, ~q2_front~0, old(~q2_front~0), ~q1_back~0, old(~q1_back~0), thread1Thread1of1ForFork2_~cond~0#1, thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1, ULTIMATE.start_assume_abort_if_not_~cond#1, #pthreadsForks, old(#pthreadsForks), thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1, ~q1_front~0, old(~q1_front~0), thread1Thread1of1ForFork2_#t~post3#1, thread1Thread1of1ForFork2_#t~post4#1, thread1_#in~_argptr#1.offset, thread2_#in~_argptr#1.offset, thread3_#in~_argptr#1.offset, thread4_#in~_argptr#1.offset, thread1Thread1of1ForFork2_~_argptr#1.offset, ~N~0, old(~N~0), #Ultimate.allocOnHeap_#res.base, ~i~0, old(~i~0), ~j~0, old(~j~0), thread2Thread1of1ForFork0_#in~_argptr#1.base, #valid, old(#valid), thread4Thread1of1ForFork3_#res#1.base, read~int_#value, #Ultimate.allocInit_~size, thread4Thread1of1ForFork3_plus_#res#1, thread1_assume_abort_if_not_~cond#1, thread2_assume_abort_if_not_~cond#1, thread3_assume_abort_if_not_~cond#1, thread4_assume_abort_if_not_~cond#1, write~init~int_#ptr.base, thread1Thread1of1ForFork2_#in~_argptr#1.offset, thread3Thread1of1ForFork1_#t~mem10#1, thread1_#in~_argptr#1.base, thread2_#in~_argptr#1.base, thread3_#in~_argptr#1.base, thread4_#in~_argptr#1.base, thread4Thread1of1ForFork3_~_argptr#1.base, thread4Thread1of1ForFork3_plus_#in~a#1, thread4Thread1of1ForFork3_plus_#in~b#1, ULTIMATE.start_assume_abort_if_not_#in~cond#1, thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1, #Ultimate.allocInit_ptrBase, ULTIMATE.start_main_#t~nondet16#1, ULTIMATE.start_main_#t~nondet17#1, ULTIMATE.start_main_#t~nondet18#1, ULTIMATE.start_main_#t~nondet19#1, thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1, ULTIMATE.start_main_#t~nondet20#1, ULTIMATE.start_main_#t~nondet25#1, ULTIMATE.start_main_#t~nondet27#1, ULTIMATE.start_main_#t~nondet29#1, thread3_#t~post12#1, thread4Thread1of1ForFork3_#res#1.offset, thread4_#t~post15#1, ULTIMATE.start_main_~#t1~0#1.base, ULTIMATE.start_main_#t~nondet31#1, ~q2~0.offset, old(~q2~0.offset), #length, old(#length), thread1Thread1of1ForFork2_#in~_argptr#1.base, ULTIMATE.start_main_~#t2~0#1.base, write~int_#sizeOfWrittenType, thread3Thread1of1ForFork1_#res#1.base, thread3Thread1of1ForFork1_plus_#res#1, ULTIMATE.start_main_~#t3~0#1.base, thread3Thread1of1ForFork1_thidvar0, old(thread3Thread1of1ForFork1_thidvar0), thread3Thread1of1ForFork1_thidvar1, old(thread3Thread1of1ForFork1_thidvar1), thread3Thread1of1ForFork1_thidvar2, old(thread3Thread1of1ForFork1_thidvar2), thread3Thread1of1ForFork1_thidvar3, old(thread3Thread1of1ForFork1_thidvar3), #StackHeapBarrier, old(#StackHeapBarrier), thread4Thread1of1ForFork3_#t~ret14#1, ULTIMATE.start_create_fresh_int_array_#t~post37#1, thread1_assume_abort_if_not_#in~cond#1, thread2_assume_abort_if_not_#in~cond#1, thread3_assume_abort_if_not_#in~cond#1, thread4_assume_abort_if_not_#in~cond#1, ULTIMATE.start_main_~#t4~0#1.base, ULTIMATE.start_main_#t~ret21#1.offset, thread4Thread1of1ForFork3_plus_~a#1, thread4Thread1of1ForFork3_plus_~b#1, ULTIMATE.start_main_#t~ret22#1.offset, thread3Thread1of1ForFork1_~_argptr#1.base, thread3Thread1of1ForFork1_plus_#in~a#1, thread3Thread1of1ForFork1_plus_#in~b#1, write~int_#ptr.offset, #Ultimate.allocOnHeap_~size, ULTIMATE.start_main_#t~ret23#1.offset, thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1, #memory_int, old(#memory_int), thread4Thread1of1ForFork3_~cond~3#1, thread3Thread1of1ForFork1_#res#1.offset, thread3_#t~mem10#1, #Ultimate.allocOnStack_#res.base, thread4_#t~mem13#1, ULTIMATE.start_create_fresh_int_array_#t~malloc36#1.offset, thread4Thread1of1ForFork3_~_argptr#1.offset, thread2Thread1of1ForFork0_#res#1.base, ~q2~0.base, old(~q2~0.base), ~f~0.offset, old(~f~0.offset), thread2Thread1of1ForFork0_#t~mem5#1, thread2Thread1of1ForFork0_#t~mem6#1, thread2Thread1of1ForFork0_#t~mem7#1, thread3Thread1of1ForFork1_#t~ret11#1, read~int_#ptr.offset, ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset], Protected Variables before encountering a loop: [] - TimeoutResultAtElement [Line: 151]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while executing DynamicStratifiedReduction. - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION with 1 thread instances CFG has 9 procedures, 291 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 863.5s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 858.0s, 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: 52, 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, 0.6s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 1656 NumberOfCodeBlocks, 1656 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 2141 ConstructedInterpolants, 0 QuantifiedInterpolants, 7133 SizeOfPredicates, 16 NumberOfNonLiveVariables, 1230 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 146/159 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