/usr/bin/java -Xmx7000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.prune.known.deadend.states.from.previous.iterations false -s ../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION -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 [2023-09-06 22:54:47,041 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-09-06 22:54:47,096 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2023-09-06 22:54:47,099 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-09-06 22:54:47,100 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-09-06 22:54:47,100 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-09-06 22:54:47,139 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-06 22:54:47,140 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-06 22:54:47,140 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-06 22:54:47,140 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-06 22:54:47,141 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-06 22:54:47,141 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-06 22:54:47,142 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-09-06 22:54:47,142 INFO L153 SettingsManager]: * Use SBE=true [2023-09-06 22:54:47,142 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-06 22:54:47,143 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-06 22:54:47,143 INFO L153 SettingsManager]: * sizeof long=4 [2023-09-06 22:54:47,143 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-06 22:54:47,144 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-09-06 22:54:47,144 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-09-06 22:54:47,144 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-06 22:54:47,145 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-06 22:54:47,145 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-06 22:54:47,145 INFO L153 SettingsManager]: * sizeof long double=12 [2023-09-06 22:54:47,145 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-09-06 22:54:47,146 INFO L153 SettingsManager]: * Use constant arrays=true [2023-09-06 22:54:47,146 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-06 22:54:47,146 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-06 22:54:47,146 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-09-06 22:54:47,146 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-06 22:54:47,147 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-06 22:54:47,147 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-06 22:54:47,147 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-06 22:54:47,147 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2023-09-06 22:54:47,148 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-06 22:54:47,148 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-06 22:54:47,148 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-06 22:54:47,148 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-09-06 22:54:47,149 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-09-06 22:54:47,149 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-06 22:54:47,149 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2023-09-06 22:54:47,150 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2023-09-06 22:54:47,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-06 22:54:47,416 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-06 22:54:47,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-06 22:54:47,418 INFO L270 PluginConnector]: Initializing CDTParser... [2023-09-06 22:54:47,419 INFO L274 PluginConnector]: CDTParser initialized [2023-09-06 22:54:47,421 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stateful01-1.i [2023-09-06 22:54:48,525 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-09-06 22:54:48,770 INFO L384 CDTParser]: Found 1 translation units. [2023-09-06 22:54:48,771 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i [2023-09-06 22:54:48,784 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80812a9d8/b453873c5a85487399997ff12cb322b1/FLAG07cf95d95 [2023-09-06 22:54:48,796 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80812a9d8/b453873c5a85487399997ff12cb322b1 [2023-09-06 22:54:48,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-06 22:54:48,799 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-09-06 22:54:48,800 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-06 22:54:48,800 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-06 22:54:48,804 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-06 22:54:48,804 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.09 10:54:48" (1/1) ... [2023-09-06 22:54:48,805 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@543034d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 10:54:48, skipping insertion in model container [2023-09-06 22:54:48,805 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.09 10:54:48" (1/1) ... [2023-09-06 22:54:48,856 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-09-06 22:54:49,110 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] [2023-09-06 22:54:49,114 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-06 22:54:49,124 INFO L202 MainTranslator]: Completed pre-run [2023-09-06 22:54:49,151 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [257] [2023-09-06 22:54:49,153 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [257] [2023-09-06 22:54:49,177 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] [2023-09-06 22:54:49,182 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-06 22:54:49,217 INFO L206 MainTranslator]: Completed translation [2023-09-06 22:54:49,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 10:54:49 WrapperNode [2023-09-06 22:54:49,217 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-06 22:54:49,219 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-06 22:54:49,219 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-06 22:54:49,219 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-06 22:54:49,224 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 10:54:49" (1/1) ... [2023-09-06 22:54:49,245 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 10:54:49" (1/1) ... [2023-09-06 22:54:49,263 INFO L138 Inliner]: procedures = 168, calls = 34, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 63 [2023-09-06 22:54:49,264 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-06 22:54:49,264 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-06 22:54:49,264 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-06 22:54:49,265 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-09-06 22:54:49,272 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 10:54:49" (1/1) ... [2023-09-06 22:54:49,272 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 10:54:49" (1/1) ... [2023-09-06 22:54:49,281 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 10:54:49" (1/1) ... [2023-09-06 22:54:49,281 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 10:54:49" (1/1) ... [2023-09-06 22:54:49,286 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 10:54:49" (1/1) ... [2023-09-06 22:54:49,287 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 10:54:49" (1/1) ... [2023-09-06 22:54:49,288 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 10:54:49" (1/1) ... [2023-09-06 22:54:49,289 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 10:54:49" (1/1) ... [2023-09-06 22:54:49,291 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-06 22:54:49,292 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-06 22:54:49,292 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-09-06 22:54:49,292 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-09-06 22:54:49,298 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 10:54:49" (1/1) ... [2023-09-06 22:54:49,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-06 22:54:49,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-06 22:54:49,338 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) [2023-09-06 22:54:49,353 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 [2023-09-06 22:54:49,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-06 22:54:49,378 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-09-06 22:54:49,379 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-09-06 22:54:49,379 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-09-06 22:54:49,379 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-09-06 22:54:49,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-06 22:54:49,379 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-06 22:54:49,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-06 22:54:49,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-06 22:54:49,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-06 22:54:49,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-06 22:54:49,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-06 22:54:49,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-06 22:54:49,383 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-06 22:54:49,521 INFO L236 CfgBuilder]: Building ICFG [2023-09-06 22:54:49,523 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-06 22:54:49,672 INFO L277 CfgBuilder]: Performing block encoding [2023-09-06 22:54:49,678 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-06 22:54:49,678 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-06 22:54:49,679 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.09 10:54:49 BoogieIcfgContainer [2023-09-06 22:54:49,680 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-06 22:54:49,681 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-06 22:54:49,681 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-09-06 22:54:49,690 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-09-06 22:54:49,690 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.09 10:54:48" (1/3) ... [2023-09-06 22:54:49,691 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f8b1044 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.09 10:54:49, skipping insertion in model container [2023-09-06 22:54:49,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 10:54:49" (2/3) ... [2023-09-06 22:54:49,691 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f8b1044 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.09 10:54:49, skipping insertion in model container [2023-09-06 22:54:49,692 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.09 10:54:49" (3/3) ... [2023-09-06 22:54:49,693 INFO L112 eAbstractionObserver]: Analyzing ICFG stateful01-1.i [2023-09-06 22:54:49,699 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-06 22:54:49,707 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-06 22:54:49,708 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-09-06 22:54:49,708 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-06 22:54:49,769 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-09-06 22:54:49,803 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-06 22:54:49,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-09-06 22:54:49,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-06 22:54:49,805 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) [2023-09-06 22:54:49,806 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 [2023-09-06 22:54:49,845 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-09-06 22:54:49,851 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2023-09-06 22:54:49,856 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;@43d1553d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-06 22:54:49,856 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-06 22:54:49,903 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-06 22:54:49,908 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-06 22:54:49,909 INFO L85 PathProgramCache]: Analyzing trace with hash 904597638, now seen corresponding path program 1 times [2023-09-06 22:54:49,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-06 22:54:49,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792500427] [2023-09-06 22:54:49,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-06 22:54:49,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-06 22:54:50,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-06 22:54:50,104 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-06 22:54:50,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-06 22:54:50,195 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-06 22:54:50,197 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-06 22:54:50,198 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-09-06 22:54:50,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-06 22:54:50,203 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-09-06 22:54:50,204 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was UNSAFE (1/3) [2023-09-06 22:54:50,207 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-06 22:54:50,207 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-06 22:54:50,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.09 10:54:50 BasicIcfg [2023-09-06 22:54:50,258 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-06 22:54:50,259 INFO L158 Benchmark]: Toolchain (without parser) took 1459.78ms. Allocated memory is still 205.5MB. Free memory was 159.4MB in the beginning and 133.1MB in the end (delta: 26.3MB). Peak memory consumption was 27.0MB. Max. memory is 7.0GB. [2023-09-06 22:54:50,259 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 205.5MB. Free memory is still 161.0MB. There was no memory consumed. Max. memory is 7.0GB. [2023-09-06 22:54:50,260 INFO L158 Benchmark]: CACSL2BoogieTranslator took 417.85ms. Allocated memory is still 205.5MB. Free memory was 159.1MB in the beginning and 139.5MB in the end (delta: 19.6MB). Peak memory consumption was 19.9MB. Max. memory is 7.0GB. [2023-09-06 22:54:50,260 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.18ms. Allocated memory is still 205.5MB. Free memory was 139.5MB in the beginning and 137.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 7.0GB. [2023-09-06 22:54:50,260 INFO L158 Benchmark]: Boogie Preprocessor took 26.89ms. Allocated memory is still 205.5MB. Free memory was 137.4MB in the beginning and 136.0MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 7.0GB. [2023-09-06 22:54:50,261 INFO L158 Benchmark]: RCFGBuilder took 387.97ms. Allocated memory is still 205.5MB. Free memory was 136.0MB in the beginning and 174.0MB in the end (delta: -38.0MB). Peak memory consumption was 20.7MB. Max. memory is 7.0GB. [2023-09-06 22:54:50,261 INFO L158 Benchmark]: TraceAbstraction took 576.66ms. Allocated memory is still 205.5MB. Free memory was 173.5MB in the beginning and 133.1MB in the end (delta: 40.4MB). Peak memory consumption was 39.8MB. Max. memory is 7.0GB. [2023-09-06 22:54:50,264 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 205.5MB. Free memory is still 161.0MB. There was no memory consumed. Max. memory is 7.0GB. * CACSL2BoogieTranslator took 417.85ms. Allocated memory is still 205.5MB. Free memory was 159.1MB in the beginning and 139.5MB in the end (delta: 19.6MB). Peak memory consumption was 19.9MB. Max. memory is 7.0GB. * Boogie Procedure Inliner took 45.18ms. Allocated memory is still 205.5MB. Free memory was 139.5MB in the beginning and 137.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 7.0GB. * Boogie Preprocessor took 26.89ms. Allocated memory is still 205.5MB. Free memory was 137.4MB in the beginning and 136.0MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 7.0GB. * RCFGBuilder took 387.97ms. Allocated memory is still 205.5MB. Free memory was 136.0MB in the beginning and 174.0MB in the end (delta: -38.0MB). Peak memory consumption was 20.7MB. Max. memory is 7.0GB. * TraceAbstraction took 576.66ms. Allocated memory is still 205.5MB. Free memory was 173.5MB in the beginning and 133.1MB in the end (delta: 40.4MB). Peak memory consumption was 39.8MB. 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 ThreadSeparatingIndependenceRelation.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] , ThreadSeparatingIndependenceRelation.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: DisjunctiveConditionalIndependenceRelation.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] , DisjunctiveConditionalIndependenceRelation.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: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.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.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: 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] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, 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: -1, Independence queries for same thread: 0 - StatisticsResult: Proof manager benchmarks IrresponsibleProofs: 0, RedundantProofs: 0, ProvenStates: 0 - 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}] - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION 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: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 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! [2023-09-06 22:54:50,284 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 [2023-09-06 22:54:50,482 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...