/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-bad-buffer-mult-alt.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.dynamic-abstractions-57af04c-m [2024-01-26 01:05:13,347 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-26 01:05:13,422 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2024-01-26 01:05:13,426 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-26 01:05:13,426 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-26 01:05:13,427 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-01-26 01:05:13,454 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-26 01:05:13,455 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-26 01:05:13,455 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-26 01:05:13,455 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-26 01:05:13,455 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-26 01:05:13,460 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-26 01:05:13,460 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-26 01:05:13,465 INFO L153 SettingsManager]: * Use SBE=true [2024-01-26 01:05:13,465 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-26 01:05:13,465 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-26 01:05:13,466 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-26 01:05:13,466 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-26 01:05:13,467 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-26 01:05:13,467 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-26 01:05:13,467 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-26 01:05:13,467 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-26 01:05:13,467 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-26 01:05:13,468 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-26 01:05:13,468 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-26 01:05:13,469 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-26 01:05:13,470 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-26 01:05:13,470 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-26 01:05:13,470 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-01-26 01:05:13,470 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-26 01:05:13,471 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-01-26 01:05:13,471 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-26 01:05:13,471 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-26 01:05:13,471 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2024-01-26 01:05:13,472 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2024-01-26 01:05:13,472 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-26 01:05:13,472 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-26 01:05:13,472 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-26 01:05:13,472 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-01-26 01:05:13,472 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-26 01:05:13,472 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2024-01-26 01:05:13,473 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2024-01-26 01:05:13,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-26 01:05:13,723 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-26 01:05:13,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-26 01:05:13,726 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-26 01:05:13,726 INFO L274 PluginConnector]: CDTParser initialized [2024-01-26 01:05:13,727 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt.wvr.c [2024-01-26 01:05:14,696 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-26 01:05:14,852 INFO L384 CDTParser]: Found 1 translation units. [2024-01-26 01:05:14,852 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt.wvr.c [2024-01-26 01:05:14,858 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/5372ca101/dfb151dd472a440ca8e3a70abeb4e8f4/FLAG65c12b766 [2024-01-26 01:05:15,278 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/5372ca101/dfb151dd472a440ca8e3a70abeb4e8f4 [2024-01-26 01:05:15,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-26 01:05:15,282 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-26 01:05:15,283 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-26 01:05:15,283 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-26 01:05:15,287 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-26 01:05:15,288 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 01:05:15" (1/1) ... [2024-01-26 01:05:15,288 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6893be45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:05:15, skipping insertion in model container [2024-01-26 01:05:15,288 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 01:05:15" (1/1) ... [2024-01-26 01:05:15,319 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-26 01:05:15,470 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-bad-buffer-mult-alt.wvr.c[4345,4358] [2024-01-26 01:05:15,481 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 01:05:15,489 INFO L202 MainTranslator]: Completed pre-run [2024-01-26 01:05:15,515 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-bad-buffer-mult-alt.wvr.c[4345,4358] [2024-01-26 01:05:15,519 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 01:05:15,531 INFO L206 MainTranslator]: Completed translation [2024-01-26 01:05:15,531 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:05:15 WrapperNode [2024-01-26 01:05:15,532 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-26 01:05:15,533 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-26 01:05:15,533 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-26 01:05:15,533 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-26 01:05:15,539 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:05:15" (1/1) ... [2024-01-26 01:05:15,561 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:05:15" (1/1) ... [2024-01-26 01:05:15,593 INFO L138 Inliner]: procedures = 26, calls = 79, calls flagged for inlining = 17, calls inlined = 21, statements flattened = 335 [2024-01-26 01:05:15,593 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-26 01:05:15,594 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-26 01:05:15,594 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-26 01:05:15,594 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-26 01:05:15,608 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:05:15" (1/1) ... [2024-01-26 01:05:15,608 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:05:15" (1/1) ... [2024-01-26 01:05:15,613 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:05:15" (1/1) ... [2024-01-26 01:05:15,613 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:05:15" (1/1) ... [2024-01-26 01:05:15,621 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:05:15" (1/1) ... [2024-01-26 01:05:15,625 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:05:15" (1/1) ... [2024-01-26 01:05:15,627 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:05:15" (1/1) ... [2024-01-26 01:05:15,628 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:05:15" (1/1) ... [2024-01-26 01:05:15,631 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-26 01:05:15,632 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-26 01:05:15,632 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-26 01:05:15,632 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-26 01:05:15,633 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:05:15" (1/1) ... [2024-01-26 01:05:15,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-01-26 01:05:15,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 01:05:15,673 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 01:05:15,692 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 01:05:15,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-26 01:05:15,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-26 01:05:15,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-01-26 01:05:15,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-01-26 01:05:15,700 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-26 01:05:15,700 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-26 01:05:15,701 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-26 01:05:15,701 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-26 01:05:15,701 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-26 01:05:15,701 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-26 01:05:15,701 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-01-26 01:05:15,703 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-01-26 01:05:15,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-01-26 01:05:15,703 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-26 01:05:15,703 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-26 01:05:15,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-01-26 01:05:15,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-26 01:05:15,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-26 01:05:15,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-26 01:05:15,705 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 01:05:15,788 INFO L241 CfgBuilder]: Building ICFG [2024-01-26 01:05:15,789 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-26 01:05:16,107 INFO L282 CfgBuilder]: Performing block encoding [2024-01-26 01:05:16,247 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-26 01:05:16,247 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2024-01-26 01:05:16,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 01:05:16 BoogieIcfgContainer [2024-01-26 01:05:16,248 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-26 01:05:16,252 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-26 01:05:16,252 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-26 01:05:16,255 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-26 01:05:16,255 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 01:05:15" (1/3) ... [2024-01-26 01:05:16,256 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@369458e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 01:05:16, skipping insertion in model container [2024-01-26 01:05:16,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 01:05:15" (2/3) ... [2024-01-26 01:05:16,257 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@369458e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 01:05:16, skipping insertion in model container [2024-01-26 01:05:16,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 01:05:16" (3/3) ... [2024-01-26 01:05:16,258 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-buffer-mult-alt.wvr.c [2024-01-26 01:05:16,266 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-01-26 01:05:16,274 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-26 01:05:16,274 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-01-26 01:05:16,274 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-26 01:05:16,377 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-01-26 01:05:16,415 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-26 01:05:16,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-01-26 01:05:16,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 01:05:16,418 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 01:05:16,418 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 01:05:16,444 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-01-26 01:05:16,452 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2024-01-26 01:05:16,456 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;@42594105, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-26 01:05:16,456 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. Found a loop, use abstraction hammer [2024-01-26 01:06:09,871 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 01:06:09,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 01:06:09,876 INFO L85 PathProgramCache]: Analyzing trace with hash 944091961, now seen corresponding path program 1 times [2024-01-26 01:06:09,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 01:06:09,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837654130] [2024-01-26 01:06:09,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:06:09,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 01:06:10,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:06:10,194 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-01-26 01:06:10,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 01:06:10,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837654130] [2024-01-26 01:06:10,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837654130] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 01:06:10,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 01:06:10,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-26 01:06:10,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548058996] [2024-01-26 01:06:10,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 01:06:10,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-01-26 01:06:10,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 01:06:10,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-01-26 01:06:10,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-01-26 01:06:10,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:06:10,226 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 01:06:10,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 107.0) internal successors, (214), 2 states have internal predecessors, (214), 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 01:06:10,227 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 01:06:51,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:06:51,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-26 01:06:51,215 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 01:06:51,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 01:06:51,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1528111487, now seen corresponding path program 1 times [2024-01-26 01:06:51,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 01:06:51,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481716842] [2024-01-26 01:06:51,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:06:51,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 01:06:51,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:06:51,747 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-01-26 01:06:51,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 01:06:51,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481716842] [2024-01-26 01:06:51,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481716842] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 01:06:51,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 01:06:51,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-26 01:06:51,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004372924] [2024-01-26 01:06:51,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 01:06:51,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-26 01:06:51,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 01:06:51,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-26 01:06:51,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-01-26 01:06:51,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:06:51,752 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 01:06:51,753 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 01:06:51,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:06:51,753 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 01:07:44,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:07:44,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-26 01:07:44,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-26 01:07:44,289 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 01:07:44,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 01:07:44,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1835572905, now seen corresponding path program 1 times [2024-01-26 01:07:44,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 01:07:44,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919286447] [2024-01-26 01:07:44,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:07:44,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 01:07:44,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:07:44,638 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-01-26 01:07:44,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 01:07:44,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919286447] [2024-01-26 01:07:44,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919286447] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 01:07:44,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [873485591] [2024-01-26 01:07:44,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:07:44,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 01:07:44,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 01:07:44,682 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 01:07:44,685 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 01:07:44,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:07:44,859 INFO L262 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 9 conjunts are in the unsatisfiable core [2024-01-26 01:07:44,865 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 01:07:45,123 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-01-26 01:07:45,124 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 01:07:45,421 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-01-26 01:07:45,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [873485591] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 01:07:45,422 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 01:07:45,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2024-01-26 01:07:45,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839197832] [2024-01-26 01:07:45,422 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 01:07:45,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-01-26 01:07:45,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 01:07:45,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-01-26 01:07:45,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2024-01-26 01:07:45,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:07:45,424 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 01:07:45,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 17.05263157894737) internal successors, (324), 19 states have internal predecessors, (324), 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 01:07:45,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:07:45,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-01-26 01:07:45,425 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 01:08:26,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:08:26,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-26 01:08:26,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-01-26 01:08:26,648 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-01-26 01:08:26,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-01-26 01:08:26,846 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 01:08:26,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 01:08:26,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1748383981, now seen corresponding path program 2 times [2024-01-26 01:08:26,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 01:08:26,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890815997] [2024-01-26 01:08:26,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 01:08:26,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 01:08:26,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 01:08:27,210 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-01-26 01:08:27,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 01:08:27,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890815997] [2024-01-26 01:08:27,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890815997] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 01:08:27,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 01:08:27,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-26 01:08:27,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863069164] [2024-01-26 01:08:27,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 01:08:27,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-26 01:08:27,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 01:08:27,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-26 01:08:27,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-01-26 01:08:27,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:08:27,213 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 01:08:27,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.0) internal successors, (228), 6 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 01:08:27,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 01:08:27,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-01-26 01:08:27,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-01-26 01:08:27,213 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 01:19:24,774 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 01:19:24,774 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 01:19:24,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-26 01:19:24,847 WARN L619 AbstractCegarLoop]: Verification canceled: while executing DynamicStratifiedReduction. [2024-01-26 01:19:24,849 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-01-26 01:19:24,926 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-01-26 01:19:24,927 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was TIMEOUT (1/5) [2024-01-26 01:19:24,929 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-26 01:19:24,929 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-26 01:19:24,931 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.01 01:19:24 BasicIcfg [2024-01-26 01:19:24,931 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-26 01:19:24,931 INFO L158 Benchmark]: Toolchain (without parser) took 849648.87ms. Allocated memory was 285.2MB in the beginning and 713.0MB in the end (delta: 427.8MB). Free memory was 246.8MB in the beginning and 87.5MB in the end (delta: 159.3MB). Peak memory consumption was 807.3MB. Max. memory is 8.0GB. [2024-01-26 01:19:24,931 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 207.6MB. Free memory is still 159.5MB. There was no memory consumed. Max. memory is 8.0GB. [2024-01-26 01:19:24,932 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.95ms. Allocated memory is still 285.2MB. Free memory was 246.8MB in the beginning and 233.2MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2024-01-26 01:19:24,932 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.76ms. Allocated memory is still 285.2MB. Free memory was 233.2MB in the beginning and 230.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-01-26 01:19:24,932 INFO L158 Benchmark]: Boogie Preprocessor took 37.81ms. Allocated memory is still 285.2MB. Free memory was 230.6MB in the beginning and 228.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-01-26 01:19:24,932 INFO L158 Benchmark]: RCFGBuilder took 615.92ms. Allocated memory is still 285.2MB. Free memory was 228.4MB in the beginning and 176.5MB in the end (delta: 51.9MB). Peak memory consumption was 52.4MB. Max. memory is 8.0GB. [2024-01-26 01:19:24,933 INFO L158 Benchmark]: TraceAbstraction took 848679.07ms. Allocated memory was 285.2MB in the beginning and 713.0MB in the end (delta: 427.8MB). Free memory was 176.0MB in the beginning and 87.5MB in the end (delta: 88.5MB). Peak memory consumption was 737.0MB. Max. memory is 8.0GB. [2024-01-26 01:19:24,934 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 207.6MB. Free memory is still 159.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 248.95ms. Allocated memory is still 285.2MB. Free memory was 246.8MB in the beginning and 233.2MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 60.76ms. Allocated memory is still 285.2MB. Free memory was 233.2MB in the beginning and 230.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 37.81ms. Allocated memory is still 285.2MB. Free memory was 230.6MB in the beginning and 228.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 615.92ms. Allocated memory is still 285.2MB. Free memory was 228.4MB in the beginning and 176.5MB in the end (delta: 51.9MB). Peak memory consumption was 52.4MB. Max. memory is 8.0GB. * TraceAbstraction took 848679.07ms. Allocated memory was 285.2MB in the beginning and 713.0MB in the end (delta: 427.8MB). Free memory was 176.0MB in the beginning and 87.5MB in the end (delta: 88.5MB). Peak memory consumption was 737.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 106437, independent: 100183, independent conditional: 100183, independent unconditional: 0, dependent: 6254, dependent conditional: 6254, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 100948, independent: 100183, independent conditional: 100183, independent unconditional: 0, dependent: 765, dependent conditional: 765, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 100948, independent: 100183, independent conditional: 100183, independent unconditional: 0, dependent: 765, dependent conditional: 765, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 102768, independent: 100183, independent conditional: 0, independent unconditional: 100183, dependent: 2585, dependent conditional: 1820, dependent unconditional: 765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 102768, independent: 100183, independent conditional: 0, independent unconditional: 100183, dependent: 2585, dependent conditional: 0, dependent unconditional: 2585, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 102768, independent: 100183, independent conditional: 0, independent unconditional: 100183, dependent: 2585, dependent conditional: 0, dependent unconditional: 2585, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 100948, independent: 100183, independent conditional: 0, independent unconditional: 100183, dependent: 765, dependent conditional: 0, dependent unconditional: 765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 100948, independent: 100183, independent conditional: 0, independent unconditional: 100183, dependent: 765, dependent conditional: 0, dependent unconditional: 765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 765, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 765, dependent conditional: 0, dependent unconditional: 765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 765, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 765, dependent conditional: 0, dependent unconditional: 765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 765, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 765, dependent conditional: 0, dependent unconditional: 765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2379, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2379, dependent conditional: 0, dependent unconditional: 2379, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 102768, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1820, dependent conditional: 0, dependent unconditional: 1820, unknown: 100948, unknown conditional: 0, unknown unconditional: 100948] , Statistics on independence cache: Total cache size (in pairs): 100948, Positive cache size: 100183, Positive conditional cache size: 0, Positive unconditional cache size: 100183, Negative cache size: 765, Negative conditional cache size: 0, Negative unconditional cache size: 765, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1820, Maximal queried relation: 4, Independence queries for same thread: 5489 - StatisticsResult: Proof manager benchmarks IrresponsibleProofs: 5, RedundantProofs: 2, ProvenStates: 6730, Times there's more than one choice: 4678, Avg number of choices: 2.651560178306092 - StatisticsResult: Reduction benchmarks 0.1s Time before loop, 41.1s Time in loop, 41.2s 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, thread1Thread1of1ForFork2_#t~short2#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, thread2_#t~mem5#1, thread3_#t~mem9#1, ULTIMATE.start_main_#t~mem34#1, ULTIMATE.start_main_#t~mem35#1, ULTIMATE.start_main_#t~mem36#1, ULTIMATE.start_main_#t~mem37#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~ret25#1.base, 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_#t~ret24#1.base, 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, read~int_#ptr.base, ULTIMATE.start_create_fresh_int_array_#t~malloc38#1.base, ULTIMATE.start_#t~ret41#1, 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, thread4Thread1of1ForFork3_#t~post14#1, ULTIMATE.start_create_fresh_int_array_#t~nondet40#1, thread3Thread1of1ForFork1_#in~_argptr#1.offset, thread1Thread1of1ForFork2_~_argptr#1.base, ULTIMATE.start_main_~#t2~0#1.offset, thread3_#t~ret10#1, thread4_#t~ret13#1, #Ultimate.allocOnStack_~size, ~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~post7#1, thread2Thread1of1ForFork0_#t~post8#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~post7#1, thread2_#t~post8#1, thread3Thread1of1ForFork1_#t~post11#1, ULTIMATE.start_main_#t~pre26#1, ULTIMATE.start_main_#t~pre28#1, ULTIMATE.start_main_#t~pre30#1, ULTIMATE.start_main_#t~pre32#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~mem12#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, ~C~0, old(~C~0), ~M~0, old(~M~0), ~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, 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~nondet15#1, 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~nondet21#1, ULTIMATE.start_main_#t~nondet22#1, ULTIMATE.start_main_#t~nondet23#1, ULTIMATE.start_main_#t~nondet27#1, ULTIMATE.start_main_#t~nondet29#1, thread3_#t~post11#1, thread4_#t~post14#1, thread4Thread1of1ForFork3_#res#1.offset, ULTIMATE.start_main_~#t1~0#1.base, ULTIMATE.start_main_#t~nondet31#1, ULTIMATE.start_main_#t~nondet33#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, thread3Thread1of1ForFork1_#t~mem9#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~ret13#1, ULTIMATE.start_create_fresh_int_array_#t~post39#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, thread4Thread1of1ForFork3_plus_~a#1, thread4Thread1of1ForFork3_plus_~b#1, thread2Thread1of1ForFork0_#t~short6#1, thread3Thread1of1ForFork1_~_argptr#1.base, thread3Thread1of1ForFork1_plus_#in~a#1, thread3Thread1of1ForFork1_plus_#in~b#1, write~int_#ptr.offset, #Ultimate.allocOnHeap_~size, thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1, #memory_int, old(#memory_int), thread4Thread1of1ForFork3_~cond~3#1, thread3Thread1of1ForFork1_#res#1.offset, ULTIMATE.start_main_#t~ret24#1.offset, thread4_#t~mem12#1, #Ultimate.allocOnStack_#res.base, thread1_#t~short2#1, thread2_#t~short6#1, ULTIMATE.start_main_#t~ret25#1.offset, thread4Thread1of1ForFork3_~_argptr#1.offset, thread2Thread1of1ForFork0_#res#1.base, ~q2~0.base, old(~q2~0.base), thread2Thread1of1ForFork0_#t~mem5#1, thread3Thread1of1ForFork1_#t~ret10#1, ULTIMATE.start_create_fresh_int_array_#t~malloc38#1.offset, read~int_#ptr.offset, ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset], Protected Variables before encountering a loop: [] - TimeoutResultAtElement [Line: 154]: 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, 280 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 848.5s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 845.8s, 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: 29, 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, 1.8s InterpolantComputationTime, 1169 NumberOfCodeBlocks, 1169 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 1397 ConstructedInterpolants, 0 QuantifiedInterpolants, 3089 SizeOfPredicates, 9 NumberOfNonLiveVariables, 580 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 120/143 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