/usr/bin/java -Xmx7000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.prune.known.deadend.states.from.previous.iterations false -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf --traceabstraction.cegar.restart.behaviour ONLY_ONE_CEGAR -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-lit/qw2004-2b.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dynamic-abstractions-e2ee32c-m [2023-09-08 03:35:38,018 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-09-08 03:35:38,096 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2023-09-08 03:35:38,102 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-09-08 03:35:38,103 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-09-08 03:35:38,103 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-09-08 03:35:38,138 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-08 03:35:38,139 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-08 03:35:38,139 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-08 03:35:38,144 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-08 03:35:38,144 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-08 03:35:38,144 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-08 03:35:38,145 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-09-08 03:35:38,146 INFO L153 SettingsManager]: * Use SBE=true [2023-09-08 03:35:38,147 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-08 03:35:38,147 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-08 03:35:38,147 INFO L153 SettingsManager]: * sizeof long=4 [2023-09-08 03:35:38,147 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-08 03:35:38,147 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-09-08 03:35:38,148 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-09-08 03:35:38,148 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-08 03:35:38,148 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-08 03:35:38,149 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-08 03:35:38,150 INFO L153 SettingsManager]: * sizeof long double=12 [2023-09-08 03:35:38,150 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-09-08 03:35:38,150 INFO L153 SettingsManager]: * Use constant arrays=true [2023-09-08 03:35:38,151 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-08 03:35:38,151 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-08 03:35:38,151 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-09-08 03:35:38,151 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-08 03:35:38,152 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-08 03:35:38,152 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-08 03:35:38,153 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-08 03:35:38,153 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-08 03:35:38,153 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-08 03:35:38,153 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-08 03:35:38,153 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-09-08 03:35:38,153 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-09-08 03:35:38,154 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-08 03:35:38,154 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2023-09-08 03:35:38,154 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONLY_ONE_CEGAR [2023-09-08 03:35:38,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-08 03:35:38,413 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-08 03:35:38,415 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-08 03:35:38,417 INFO L270 PluginConnector]: Initializing CDTParser... [2023-09-08 03:35:38,417 INFO L274 PluginConnector]: CDTParser initialized [2023-09-08 03:35:38,418 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/qw2004-2b.i [2023-09-08 03:35:39,625 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-09-08 03:35:39,890 INFO L384 CDTParser]: Found 1 translation units. [2023-09-08 03:35:39,890 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/qw2004-2b.i [2023-09-08 03:35:39,906 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fac0d476/de1b5053274c44808e664c877c01c0f0/FLAG06bbe7ab0 [2023-09-08 03:35:39,921 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fac0d476/de1b5053274c44808e664c877c01c0f0 [2023-09-08 03:35:39,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-08 03:35:39,929 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-09-08 03:35:39,931 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-08 03:35:39,931 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-08 03:35:39,935 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-08 03:35:39,936 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 03:35:39" (1/1) ... [2023-09-08 03:35:39,937 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67654f1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:35:39, skipping insertion in model container [2023-09-08 03:35:39,937 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 03:35:39" (1/1) ... [2023-09-08 03:35:39,988 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-09-08 03:35:40,280 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/qw2004-2b.i[30003,30016] [2023-09-08 03:35:40,305 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-08 03:35:40,314 INFO L202 MainTranslator]: Completed pre-run [2023-09-08 03:35:40,343 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [237] [2023-09-08 03:35:40,345 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [237] [2023-09-08 03:35:40,355 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/qw2004-2b.i[30003,30016] [2023-09-08 03:35:40,361 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-08 03:35:40,387 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-08 03:35:40,387 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-08 03:35:40,394 INFO L206 MainTranslator]: Completed translation [2023-09-08 03:35:40,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:35:40 WrapperNode [2023-09-08 03:35:40,394 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-08 03:35:40,395 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-08 03:35:40,395 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-08 03:35:40,396 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-08 03:35:40,401 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:35:40" (1/1) ... [2023-09-08 03:35:40,414 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:35:40" (1/1) ... [2023-09-08 03:35:40,434 INFO L138 Inliner]: procedures = 175, calls = 36, calls flagged for inlining = 9, calls inlined = 10, statements flattened = 119 [2023-09-08 03:35:40,434 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-08 03:35:40,435 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-08 03:35:40,435 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-08 03:35:40,435 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-09-08 03:35:40,443 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:35:40" (1/1) ... [2023-09-08 03:35:40,443 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:35:40" (1/1) ... [2023-09-08 03:35:40,446 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:35:40" (1/1) ... [2023-09-08 03:35:40,446 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:35:40" (1/1) ... [2023-09-08 03:35:40,450 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:35:40" (1/1) ... [2023-09-08 03:35:40,452 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:35:40" (1/1) ... [2023-09-08 03:35:40,453 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:35:40" (1/1) ... [2023-09-08 03:35:40,454 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:35:40" (1/1) ... [2023-09-08 03:35:40,457 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-08 03:35:40,457 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-08 03:35:40,457 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-09-08 03:35:40,458 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-09-08 03:35:40,458 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:35:40" (1/1) ... [2023-09-08 03:35:40,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-08 03:35:40,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 03:35:40,490 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-09-08 03:35:40,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-09-08 03:35:40,523 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2023-09-08 03:35:40,523 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2023-09-08 03:35:40,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-08 03:35:40,523 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-08 03:35:40,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-08 03:35:40,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-08 03:35:40,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-08 03:35:40,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-08 03:35:40,525 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-08 03:35:40,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-08 03:35:40,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-08 03:35:40,527 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-08 03:35:40,633 INFO L236 CfgBuilder]: Building ICFG [2023-09-08 03:35:40,635 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-08 03:35:40,787 INFO L277 CfgBuilder]: Performing block encoding [2023-09-08 03:35:40,809 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-08 03:35:40,809 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-08 03:35:40,811 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 03:35:40 BoogieIcfgContainer [2023-09-08 03:35:40,811 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-08 03:35:40,813 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-08 03:35:40,813 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-09-08 03:35:40,816 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-09-08 03:35:40,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 03:35:39" (1/3) ... [2023-09-08 03:35:40,817 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1475fd78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 03:35:40, skipping insertion in model container [2023-09-08 03:35:40,817 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:35:40" (2/3) ... [2023-09-08 03:35:40,817 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1475fd78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 03:35:40, skipping insertion in model container [2023-09-08 03:35:40,817 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 03:35:40" (3/3) ... [2023-09-08 03:35:40,818 INFO L112 eAbstractionObserver]: Analyzing ICFG qw2004-2b.i [2023-09-08 03:35:40,825 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-08 03:35:40,856 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-08 03:35:40,856 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-09-08 03:35:40,856 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-08 03:35:40,901 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-09-08 03:35:40,938 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-08 03:35:40,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-09-08 03:35:40,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 03:35:40,942 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-09-08 03:35:40,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-09-08 03:35:40,975 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-09-08 03:35:40,981 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-08 03:35:40,987 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;@3ac20f0a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-08 03:35:40,987 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-09-08 03:35:41,019 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-08 03:35:41,023 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-08 03:35:41,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1762064673, now seen corresponding path program 1 times [2023-09-08 03:35:41,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-08 03:35:41,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36771800] [2023-09-08 03:35:41,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-08 03:35:41,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-08 03:35:41,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-08 03:35:41,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-08 03:35:41,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-08 03:35:41,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36771800] [2023-09-08 03:35:41,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36771800] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-08 03:35:41,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-08 03:35:41,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-08 03:35:41,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457360385] [2023-09-08 03:35:41,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-08 03:35:41,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-08 03:35:41,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-08 03:35:41,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-08 03:35:41,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-09-08 03:35:41,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-08 03:35:41,480 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-08 03:35:41,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-08 03:35:41,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-08 03:35:41,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-08 03:35:41,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-08 03:35:41,547 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-08 03:35:41,549 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-08 03:35:41,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1857171929, now seen corresponding path program 1 times [2023-09-08 03:35:41,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-08 03:35:41,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341104784] [2023-09-08 03:35:41,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-08 03:35:41,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-08 03:35:41,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-08 03:35:41,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-08 03:35:41,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-08 03:35:41,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341104784] [2023-09-08 03:35:41,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341104784] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-08 03:35:41,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-08 03:35:41,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-08 03:35:41,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401698099] [2023-09-08 03:35:41,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-08 03:35:41,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-08 03:35:41,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-08 03:35:41,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-08 03:35:41,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-09-08 03:35:41,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-08 03:35:41,811 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-08 03:35:41,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-08 03:35:41,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-09-08 03:35:41,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-08 03:35:42,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-08 03:35:42,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-09-08 03:35:42,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-08 03:35:42,021 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-08 03:35:42,021 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-08 03:35:42,021 INFO L85 PathProgramCache]: Analyzing trace with hash -980949882, now seen corresponding path program 1 times [2023-09-08 03:35:42,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-08 03:35:42,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203123630] [2023-09-08 03:35:42,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-08 03:35:42,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-08 03:35:42,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-08 03:35:42,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-08 03:35:42,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-08 03:35:42,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203123630] [2023-09-08 03:35:42,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203123630] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-08 03:35:42,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-08 03:35:42,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-09-08 03:35:42,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854523532] [2023-09-08 03:35:42,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-08 03:35:42,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-09-08 03:35:42,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-08 03:35:42,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-09-08 03:35:42,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-09-08 03:35:42,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-08 03:35:42,229 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-08 03:35:42,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-08 03:35:42,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-08 03:35:42,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-09-08 03:35:42,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-08 03:35:42,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-08 03:35:42,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-09-08 03:35:42,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-08 03:35:42,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-08 03:35:42,366 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-08 03:35:42,366 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-08 03:35:42,366 INFO L85 PathProgramCache]: Analyzing trace with hash -998927334, now seen corresponding path program 1 times [2023-09-08 03:35:42,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-08 03:35:42,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111926217] [2023-09-08 03:35:42,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-08 03:35:42,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-08 03:35:42,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-08 03:35:42,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-08 03:35:42,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-08 03:35:42,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111926217] [2023-09-08 03:35:42,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111926217] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-08 03:35:42,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-08 03:35:42,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-08 03:35:42,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484642660] [2023-09-08 03:35:42,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-08 03:35:42,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-08 03:35:42,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-08 03:35:42,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-08 03:35:42,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-09-08 03:35:42,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-08 03:35:42,519 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-08 03:35:42,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-08 03:35:42,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-08 03:35:42,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-09-08 03:35:42,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-09-08 03:35:42,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-08 03:35:42,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-08 03:35:42,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-09-08 03:35:42,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-09-08 03:35:42,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-08 03:35:42,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-08 03:35:42,737 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-08 03:35:42,738 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-08 03:35:42,738 INFO L85 PathProgramCache]: Analyzing trace with hash 793904514, now seen corresponding path program 2 times [2023-09-08 03:35:42,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-08 03:35:42,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187962599] [2023-09-08 03:35:42,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-08 03:35:42,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-08 03:35:42,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-08 03:35:42,765 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-08 03:35:42,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-08 03:35:42,798 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-08 03:35:42,798 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-08 03:35:42,799 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-09-08 03:35:42,800 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-09-08 03:35:42,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-08 03:35:42,803 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2023-09-08 03:35:42,808 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-08 03:35:42,808 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-08 03:35:42,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 03:35:42 BasicIcfg [2023-09-08 03:35:42,878 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-08 03:35:42,879 INFO L158 Benchmark]: Toolchain (without parser) took 2949.86ms. Allocated memory was 168.8MB in the beginning and 235.9MB in the end (delta: 67.1MB). Free memory was 121.2MB in the beginning and 183.6MB in the end (delta: -62.4MB). Peak memory consumption was 5.6MB. Max. memory is 7.0GB. [2023-09-08 03:35:42,879 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 168.8MB. Free memory is still 123.4MB. There was no memory consumed. Max. memory is 7.0GB. [2023-09-08 03:35:42,879 INFO L158 Benchmark]: CACSL2BoogieTranslator took 463.65ms. Allocated memory is still 168.8MB. Free memory was 120.8MB in the beginning and 100.9MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 7.0GB. [2023-09-08 03:35:42,879 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.97ms. Allocated memory is still 168.8MB. Free memory was 100.9MB in the beginning and 98.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 7.0GB. [2023-09-08 03:35:42,880 INFO L158 Benchmark]: Boogie Preprocessor took 21.90ms. Allocated memory is still 168.8MB. Free memory was 98.8MB in the beginning and 97.4MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 7.0GB. [2023-09-08 03:35:42,881 INFO L158 Benchmark]: RCFGBuilder took 353.78ms. Allocated memory is still 168.8MB. Free memory was 97.1MB in the beginning and 82.1MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 7.0GB. [2023-09-08 03:35:42,883 INFO L158 Benchmark]: TraceAbstraction took 2065.12ms. Allocated memory was 168.8MB in the beginning and 235.9MB in the end (delta: 67.1MB). Free memory was 81.4MB in the beginning and 183.6MB in the end (delta: -102.2MB). There was no memory consumed. Max. memory is 7.0GB. [2023-09-08 03:35:42,885 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 168.8MB. Free memory is still 123.4MB. There was no memory consumed. Max. memory is 7.0GB. * CACSL2BoogieTranslator took 463.65ms. Allocated memory is still 168.8MB. Free memory was 120.8MB in the beginning and 100.9MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 7.0GB. * Boogie Procedure Inliner took 38.97ms. Allocated memory is still 168.8MB. Free memory was 100.9MB in the beginning and 98.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 7.0GB. * Boogie Preprocessor took 21.90ms. Allocated memory is still 168.8MB. Free memory was 98.8MB in the beginning and 97.4MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 7.0GB. * RCFGBuilder took 353.78ms. Allocated memory is still 168.8MB. Free memory was 97.1MB in the beginning and 82.1MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 7.0GB. * TraceAbstraction took 2065.12ms. Allocated memory was 168.8MB in the beginning and 235.9MB in the end (delta: 67.1MB). Free memory was 81.4MB in the beginning and 183.6MB in the end (delta: -102.2MB). There was no memory consumed. Max. memory is 7.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 237]: Unsoundness Warning unspecified type, defaulting to int C: short [237] - GenericResultAtLocation [Line: 237]: Unsoundness Warning unspecified type, defaulting to int C: short [237] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 982, independent: 915, independent conditional: 915, independent unconditional: 0, dependent: 67, dependent conditional: 67, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 919, independent: 915, independent conditional: 915, independent unconditional: 0, dependent: 4, dependent conditional: 4, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 919, independent: 915, independent conditional: 915, independent unconditional: 0, dependent: 4, dependent conditional: 4, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 932, independent: 915, independent conditional: 0, independent unconditional: 915, dependent: 17, dependent conditional: 13, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 932, independent: 915, independent conditional: 0, independent unconditional: 915, dependent: 17, dependent conditional: 4, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 932, independent: 915, independent conditional: 0, independent unconditional: 915, dependent: 17, dependent conditional: 4, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 363, independent: 359, independent conditional: 0, independent unconditional: 359, dependent: 4, dependent conditional: 2, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 363, independent: 359, independent conditional: 0, independent unconditional: 359, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 2, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 2, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 43, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 43, dependent conditional: 7, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 932, independent: 556, independent conditional: 0, independent unconditional: 556, dependent: 13, dependent conditional: 2, dependent unconditional: 11, unknown: 363, unknown conditional: 2, unknown unconditional: 361] , Statistics on independence cache: Total cache size (in pairs): 363, Positive cache size: 359, Positive conditional cache size: 0, Positive unconditional cache size: 359, Negative cache size: 4, Negative conditional cache size: 2, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 9, Maximal queried relation: 4, Independence queries for same thread: 63 - CounterExampleResult [Line: 690]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L697] 0 volatile int stoppingFlag; VAL [stoppingFlag=0] [L698] 0 volatile int pendingIo; VAL [pendingIo=0, stoppingFlag=0] [L699] 0 volatile int stoppingEvent; VAL [pendingIo=0, stoppingEvent=0, stoppingFlag=0] [L700] 0 volatile int stopped; VAL [pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=0] [L756] 0 pthread_t t; VAL [pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L757] 0 pendingIo = 1 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L758] 0 stoppingFlag = 0 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L759] 0 stoppingEvent = 0 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L760] 0 stopped = 0 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L761] FCALL, FORK 0 pthread_create(&t, 0, BCSP_PnpStop, 0) VAL [pendingIo=1, pthread_create(&t, 0, BCSP_PnpStop, 0)=-1, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L762] CALL 0 BCSP_PnpAdd(0) [L734] 0 int status; [L735] CALL, EXPR 0 BCSP_IoIncrement() [L703] 0 int lsf = stoppingFlag; VAL [lsf=0, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L705] COND FALSE 0 !(\read(lsf)) VAL [lsf=0, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L709] 0 int lp = pendingIo; VAL [lp=1, lsf=0, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L745] 1 stoppingFlag = 1 VAL [arg={0:0}, arg={0:0}, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L747] CALL 1 BCSP_IoDecrement() [L725] 1 int pending; [L726] CALL, EXPR 1 dec() [L719] 1 pendingIo-- [L720] 1 int tmp = pendingIo; VAL [pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=1, tmp=0] [L712] EXPR 0 pendingIo = lp + 1 VAL [lp=1, lsf=0, pendingIo=2, stopped=0, stoppingEvent=0, stoppingFlag=1] [L707-L714] 0 { __VERIFIER_atomic_begin(); int lp = pendingIo; __VERIFIER_atomic_end(); __VERIFIER_atomic_begin(); pendingIo = lp + 1; __VERIFIER_atomic_end(); } VAL [lsf=0, pendingIo=2, stopped=0, stoppingEvent=0, stoppingFlag=1] [L715] 0 return 0; VAL [\result=0, lsf=0, pendingIo=2, stopped=0, stoppingEvent=0, stoppingFlag=1] [L735] RET, EXPR 0 BCSP_IoIncrement() [L735] 0 status = BCSP_IoIncrement() VAL [BCSP_IoIncrement()=0, arg={0:0}, arg={0:0}, pendingIo=2, status=0, stopped=0, stoppingEvent=0, stoppingFlag=1] [L736] COND TRUE 0 status == 0 VAL [arg={0:0}, arg={0:0}, pendingIo=2, status=0, stopped=0, stoppingEvent=0, stoppingFlag=1] [L722] 1 return tmp; VAL [\result=0, pendingIo=2, stopped=0, stoppingEvent=0, stoppingFlag=1, tmp=0] [L726] RET, EXPR 1 dec() [L726] 1 pending = dec() VAL [dec()=0, pending=0, pendingIo=2, stopped=0, stoppingEvent=0, stoppingFlag=1] [L727] COND TRUE 1 pending == 0 VAL [pending=0, pendingIo=2, stopped=0, stoppingEvent=0, stoppingFlag=1] [L729] 1 stoppingEvent = 1 VAL [pending=0, pendingIo=2, stopped=0, stoppingEvent=1, stoppingFlag=1] [L747] RET 1 BCSP_IoDecrement() [L749] 1 int lse = stoppingEvent; VAL [arg={0:0}, arg={0:0}, lse=1, pendingIo=2, stopped=0, stoppingEvent=1, stoppingFlag=1] [L751] CALL 1 assume_abort_if_not(lse) [L686] COND FALSE 1 !(!cond) VAL [\old(cond)=1, cond=1, pendingIo=2, stopped=0, stoppingEvent=1, stoppingFlag=1] [L751] RET 1 assume_abort_if_not(lse) [L752] 1 stopped = 1 VAL [arg={0:0}, arg={0:0}, lse=1, pendingIo=2, stopped=1, stoppingEvent=1, stoppingFlag=1] [L737] 0 int local_assertion = !stopped; VAL [arg={0:0}, arg={0:0}, local_assertion=0, pendingIo=2, status=0, stopped=1, stoppingEvent=1, stoppingFlag=1] [L738] CALL 0 __VERIFIER_assert(local_assertion) [L689] COND TRUE 0 !(cond) VAL [\old(cond)=0, cond=0, pendingIo=2, stopped=1, stoppingEvent=1, stoppingFlag=1] [L690] 0 reach_error() VAL [\old(cond)=0, cond=0, pendingIo=2, stopped=1, stoppingEvent=1, stoppingFlag=1] - UnprovableResult [Line: 761]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 126 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.7s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 302 NumberOfCodeBlocks, 302 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 228 ConstructedInterpolants, 0 QuantifiedInterpolants, 498 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-09-08 03:35:42,903 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2023-09-08 03:35:43,103 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...