/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 --traceabstraction.abstraction.used.for.commutativity.in.por VARIABLES_GLOBAL -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/stateful01-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dynamic-abstractions-e2ee32c-m [2023-09-08 06:42:15,572 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-09-08 06:42:15,606 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2023-09-08 06:42:15,608 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-09-08 06:42:15,609 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-09-08 06:42:15,609 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-09-08 06:42:15,623 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-08 06:42:15,623 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-08 06:42:15,623 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-08 06:42:15,624 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-08 06:42:15,624 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-08 06:42:15,624 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-08 06:42:15,624 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-09-08 06:42:15,625 INFO L153 SettingsManager]: * Use SBE=true [2023-09-08 06:42:15,625 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-08 06:42:15,625 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-08 06:42:15,625 INFO L153 SettingsManager]: * sizeof long=4 [2023-09-08 06:42:15,626 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-08 06:42:15,626 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-09-08 06:42:15,626 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-09-08 06:42:15,626 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-08 06:42:15,641 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-08 06:42:15,641 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-08 06:42:15,641 INFO L153 SettingsManager]: * sizeof long double=12 [2023-09-08 06:42:15,641 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-09-08 06:42:15,641 INFO L153 SettingsManager]: * Use constant arrays=true [2023-09-08 06:42:15,642 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-08 06:42:15,642 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-08 06:42:15,642 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-09-08 06:42:15,642 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-08 06:42:15,642 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-08 06:42:15,643 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-08 06:42:15,643 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-08 06:42:15,643 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-08 06:42:15,643 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-08 06:42:15,643 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-08 06:42:15,643 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-09-08 06:42:15,644 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-09-08 06:42:15,644 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-08 06:42:15,644 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2023-09-08 06:42:15,644 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONLY_ONE_CEGAR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstraction used for commutativity in POR -> VARIABLES_GLOBAL [2023-09-08 06:42:15,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-08 06:42:15,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-08 06:42:15,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-08 06:42:15,846 INFO L270 PluginConnector]: Initializing CDTParser... [2023-09-08 06:42:15,846 INFO L274 PluginConnector]: CDTParser initialized [2023-09-08 06:42:15,847 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stateful01-1.i [2023-09-08 06:42:16,911 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-09-08 06:42:17,066 INFO L384 CDTParser]: Found 1 translation units. [2023-09-08 06:42:17,067 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i [2023-09-08 06:42:17,080 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e9f38cb3/9a54308ca0db44998d2c39119bbbb1a8/FLAG32333ff25 [2023-09-08 06:42:17,091 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e9f38cb3/9a54308ca0db44998d2c39119bbbb1a8 [2023-09-08 06:42:17,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-08 06:42:17,094 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-09-08 06:42:17,095 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-08 06:42:17,095 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-08 06:42:17,098 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-08 06:42:17,098 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 06:42:17" (1/1) ... [2023-09-08 06:42:17,099 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d241ca4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:42:17, skipping insertion in model container [2023-09-08 06:42:17,099 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 06:42:17" (1/1) ... [2023-09-08 06:42:17,134 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-09-08 06:42:17,328 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/stateful01-1.i[30826,30839] [2023-09-08 06:42:17,331 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-08 06:42:17,341 INFO L202 MainTranslator]: Completed pre-run [2023-09-08 06:42:17,366 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [257] [2023-09-08 06:42:17,367 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [257] [2023-09-08 06:42:17,386 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/stateful01-1.i[30826,30839] [2023-09-08 06:42:17,387 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-08 06:42:17,412 INFO L206 MainTranslator]: Completed translation [2023-09-08 06:42:17,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:42:17 WrapperNode [2023-09-08 06:42:17,412 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-08 06:42:17,413 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-08 06:42:17,413 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-08 06:42:17,413 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-08 06:42:17,418 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:42:17" (1/1) ... [2023-09-08 06:42:17,428 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:42:17" (1/1) ... [2023-09-08 06:42:17,441 INFO L138 Inliner]: procedures = 168, calls = 34, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 63 [2023-09-08 06:42:17,441 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-08 06:42:17,442 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-08 06:42:17,442 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-08 06:42:17,442 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-09-08 06:42:17,447 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:42:17" (1/1) ... [2023-09-08 06:42:17,447 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:42:17" (1/1) ... [2023-09-08 06:42:17,449 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:42:17" (1/1) ... [2023-09-08 06:42:17,449 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:42:17" (1/1) ... [2023-09-08 06:42:17,452 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:42:17" (1/1) ... [2023-09-08 06:42:17,453 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:42:17" (1/1) ... [2023-09-08 06:42:17,454 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:42:17" (1/1) ... [2023-09-08 06:42:17,454 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:42:17" (1/1) ... [2023-09-08 06:42:17,456 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-08 06:42:17,457 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-08 06:42:17,457 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-09-08 06:42:17,457 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-09-08 06:42:17,457 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:42:17" (1/1) ... [2023-09-08 06:42:17,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-08 06:42:17,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 06:42:17,495 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 06:42:17,524 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 06:42:17,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-08 06:42:17,539 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-09-08 06:42:17,539 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-09-08 06:42:17,539 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-09-08 06:42:17,539 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-09-08 06:42:17,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-08 06:42:17,540 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-08 06:42:17,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-08 06:42:17,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-08 06:42:17,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-08 06:42:17,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-08 06:42:17,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-08 06:42:17,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-08 06:42:17,543 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 06:42:17,645 INFO L236 CfgBuilder]: Building ICFG [2023-09-08 06:42:17,646 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-08 06:42:17,760 INFO L277 CfgBuilder]: Performing block encoding [2023-09-08 06:42:17,765 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-08 06:42:17,765 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-08 06:42:17,766 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 06:42:17 BoogieIcfgContainer [2023-09-08 06:42:17,766 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-08 06:42:17,768 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-08 06:42:17,768 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-09-08 06:42:17,770 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-09-08 06:42:17,770 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 06:42:17" (1/3) ... [2023-09-08 06:42:17,770 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ba7cc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 06:42:17, skipping insertion in model container [2023-09-08 06:42:17,770 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:42:17" (2/3) ... [2023-09-08 06:42:17,771 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ba7cc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 06:42:17, skipping insertion in model container [2023-09-08 06:42:17,771 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 06:42:17" (3/3) ... [2023-09-08 06:42:17,771 INFO L112 eAbstractionObserver]: Analyzing ICFG stateful01-1.i [2023-09-08 06:42:17,779 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-08 06:42:17,785 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-08 06:42:17,785 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-09-08 06:42:17,785 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-08 06:42:17,839 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-09-08 06:42:17,881 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-08 06:42:17,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-09-08 06:42:17,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 06:42:17,884 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 06:42:17,930 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 06:42:17,978 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-09-08 06:42:17,985 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-08 06:42:17,993 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@95cdaa8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-08 06:42:17,993 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-09-08 06:42:18,134 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-08 06:42:18,137 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-08 06:42:18,137 INFO L85 PathProgramCache]: Analyzing trace with hash 904597638, now seen corresponding path program 1 times [2023-09-08 06:42:18,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-08 06:42:18,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336437536] [2023-09-08 06:42:18,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-08 06:42:18,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-08 06:42:18,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-08 06:42:18,274 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-08 06:42:18,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-08 06:42:18,333 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-08 06:42:18,334 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-08 06:42:18,335 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-09-08 06:42:18,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-09-08 06:42:18,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-09-08 06:42:18,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-08 06:42:18,340 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-09-08 06:42:18,343 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-08 06:42:18,343 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-08 06:42:18,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 06:42:18 BasicIcfg [2023-09-08 06:42:18,384 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-08 06:42:18,384 INFO L158 Benchmark]: Toolchain (without parser) took 1290.51ms. Allocated memory was 187.7MB in the beginning and 330.3MB in the end (delta: 142.6MB). Free memory was 139.6MB in the beginning and 262.5MB in the end (delta: -122.8MB). Peak memory consumption was 20.4MB. Max. memory is 7.0GB. [2023-09-08 06:42:18,385 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 187.7MB. Free memory is still 138.7MB. There was no memory consumed. Max. memory is 7.0GB. [2023-09-08 06:42:18,385 INFO L158 Benchmark]: CACSL2BoogieTranslator took 318.05ms. Allocated memory is still 187.7MB. Free memory was 139.6MB in the beginning and 119.9MB in the end (delta: 19.7MB). Peak memory consumption was 19.9MB. Max. memory is 7.0GB. [2023-09-08 06:42:18,385 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.21ms. Allocated memory is still 187.7MB. Free memory was 119.9MB in the beginning and 117.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 7.0GB. [2023-09-08 06:42:18,386 INFO L158 Benchmark]: Boogie Preprocessor took 14.40ms. Allocated memory is still 187.7MB. Free memory was 117.9MB in the beginning and 116.2MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 7.0GB. [2023-09-08 06:42:18,386 INFO L158 Benchmark]: RCFGBuilder took 309.85ms. Allocated memory is still 187.7MB. Free memory was 116.2MB in the beginning and 102.2MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 7.0GB. [2023-09-08 06:42:18,386 INFO L158 Benchmark]: TraceAbstraction took 615.86ms. Allocated memory was 187.7MB in the beginning and 330.3MB in the end (delta: 142.6MB). Free memory was 101.5MB in the beginning and 262.5MB in the end (delta: -161.0MB). There was no memory consumed. Max. memory is 7.0GB. [2023-09-08 06:42:18,388 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 187.7MB. Free memory is still 138.7MB. There was no memory consumed. Max. memory is 7.0GB. * CACSL2BoogieTranslator took 318.05ms. Allocated memory is still 187.7MB. Free memory was 139.6MB in the beginning and 119.9MB in the end (delta: 19.7MB). Peak memory consumption was 19.9MB. Max. memory is 7.0GB. * Boogie Procedure Inliner took 28.21ms. Allocated memory is still 187.7MB. Free memory was 119.9MB in the beginning and 117.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 7.0GB. * Boogie Preprocessor took 14.40ms. Allocated memory is still 187.7MB. Free memory was 117.9MB in the beginning and 116.2MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 7.0GB. * RCFGBuilder took 309.85ms. Allocated memory is still 187.7MB. Free memory was 116.2MB in the beginning and 102.2MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 7.0GB. * TraceAbstraction took 615.86ms. Allocated memory was 187.7MB in the beginning and 330.3MB in the end (delta: 142.6MB). Free memory was 101.5MB in the beginning and 262.5MB in the end (delta: -161.0MB). There was no memory consumed. Max. memory is 7.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 257]: Unsoundness Warning unspecified type, defaulting to int C: short [257] - GenericResultAtLocation [Line: 257]: Unsoundness Warning unspecified type, defaulting to int C: short [257] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 33, independent: 33, independent conditional: 33, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 33, independent: 33, independent conditional: 33, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 33, independent: 33, independent conditional: 33, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 33, independent: 33, independent conditional: 33, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 33, independent: 33, independent conditional: 0, independent unconditional: 33, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 33, independent: 33, independent conditional: 0, independent unconditional: 33, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 33, independent: 33, independent conditional: 0, independent unconditional: 33, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 30, independent: 30, independent conditional: 0, independent unconditional: 30, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 30, independent: 30, independent conditional: 0, independent unconditional: 30, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 33, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 30, unknown conditional: 0, unknown unconditional: 30] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 30, Positive conditional cache size: 0, Positive unconditional cache size: 30, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 0, Statistics for Abstraction: - CounterExampleResult [Line: 727]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L692] 0 pthread_mutex_t ma, mb; VAL [ma={3:0}, mb={4:0}] [L693] 0 int data1, data2; VAL [data1=0, data2=0, ma={3:0}, mb={4:0}] [L716] 0 pthread_t t1, t2; VAL [data1=0, data2=0, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L719] 0 data1 = 10 VAL [data1=10, data2=0, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L720] 0 data2 = 10 VAL [data1=10, data2=10, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L721] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data1=10, data2=10, ma={3:0}, mb={4:0}, pthread_create(&t1, 0, thread1, 0)=-2, t1={6:0}, t2={5:0}] [L722] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, data1=10, data2=10, ma={3:0}, mb={4:0}, pthread_create(&t2, 0, thread2, 0)=-1, t1={6:0}, t2={5:0}] [L723] 0 \read(t1) VAL [\read(t1)=-2, arg={0:0}, arg={0:0}, data1=10, data2=10, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L697] 1 data1++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, data1=11, data2=10, ma={3:0}, mb={4:0}] [L700] 1 data2++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, data1=11, data2=11, ma={3:0}, mb={4:0}] [L702] 1 return 0; VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=11, data2=11, ma={3:0}, mb={4:0}] [L723] FCALL, JOIN 1 pthread_join(t1, 0) VAL [\read(t1)=-2, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=11, data2=11, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L724] 0 \read(t2) VAL [\read(t2)=-1, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=11, data2=11, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L707] 2 data1+=5 VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=11, ma={3:0}, mb={4:0}] [L710] 2 data2-=6 VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}] [L712] 2 return 0; VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}] [L724] FCALL, JOIN 2 pthread_join(t2, 0) VAL [\read(t2)=-1, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L725] COND TRUE 0 data1==16 && data2==5 VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L727] 0 reach_error() VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] - UnprovableResult [Line: 722]: 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. - UnprovableResult [Line: 721]: 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 5 procedures, 119 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, 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: 0, 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, 0.0s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 06:42:18,404 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2023-09-08 06:42:18,608 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...