/usr/bin/java -Xmx7000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dynamic-abstractions-9d61ce8-m [2023-09-06 18:44:58,012 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-09-06 18:44:58,065 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2023-09-06 18:44:58,070 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-09-06 18:44:58,070 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-09-06 18:44:58,071 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-09-06 18:44:58,097 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-06 18:44:58,097 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-06 18:44:58,097 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-06 18:44:58,098 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-06 18:44:58,098 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-06 18:44:58,098 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-06 18:44:58,099 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-09-06 18:44:58,099 INFO L153 SettingsManager]: * Use SBE=true [2023-09-06 18:44:58,099 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-06 18:44:58,099 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-06 18:44:58,099 INFO L153 SettingsManager]: * sizeof long=4 [2023-09-06 18:44:58,100 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-06 18:44:58,100 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-09-06 18:44:58,100 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-09-06 18:44:58,100 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-06 18:44:58,103 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-06 18:44:58,103 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-06 18:44:58,103 INFO L153 SettingsManager]: * sizeof long double=12 [2023-09-06 18:44:58,107 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-09-06 18:44:58,107 INFO L153 SettingsManager]: * Use constant arrays=true [2023-09-06 18:44:58,107 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-06 18:44:58,107 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-06 18:44:58,108 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-09-06 18:44:58,108 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-06 18:44:58,108 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-06 18:44:58,109 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-06 18:44:58,109 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-06 18:44:58,109 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2023-09-06 18:44:58,109 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-06 18:44:58,109 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-06 18:44:58,109 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-06 18:44:58,109 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-09-06 18:44:58,109 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-09-06 18:44:58,109 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-06 18:44:58,110 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2023-09-06 18:44:58,110 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-09-06 18:44:58,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-06 18:44:58,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-06 18:44:58,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-06 18:44:58,296 INFO L270 PluginConnector]: Initializing CDTParser... [2023-09-06 18:44:58,296 INFO L274 PluginConnector]: CDTParser initialized [2023-09-06 18:44:58,297 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i [2023-09-06 18:44:59,171 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-09-06 18:44:59,389 INFO L384 CDTParser]: Found 1 translation units. [2023-09-06 18:44:59,389 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i [2023-09-06 18:44:59,400 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c61d29d91/5709252ca1d34c238db1e4ed7881be86/FLAG45c981b1e [2023-09-06 18:44:59,774 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c61d29d91/5709252ca1d34c238db1e4ed7881be86 [2023-09-06 18:44:59,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-06 18:44:59,776 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-09-06 18:44:59,777 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-06 18:44:59,777 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-06 18:44:59,780 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-06 18:44:59,780 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.09 06:44:59" (1/1) ... [2023-09-06 18:44:59,781 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a5a5729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 06:44:59, skipping insertion in model container [2023-09-06 18:44:59,781 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.09 06:44:59" (1/1) ... [2023-09-06 18:44:59,817 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-09-06 18:44:59,935 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i[1103,1116] [2023-09-06 18:45:00,162 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-06 18:45:00,172 INFO L202 MainTranslator]: Completed pre-run [2023-09-06 18:45:00,181 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i[1103,1116] [2023-09-06 18:45:00,196 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [231] [2023-09-06 18:45:00,197 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-09-06 18:45:00,201 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [730] [2023-09-06 18:45:00,225 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-06 18:45:00,265 WARN L669 CHandler]: The function sleep is called, but not defined or handled by StandardFunctionHandler. [2023-09-06 18:45:00,270 INFO L206 MainTranslator]: Completed translation [2023-09-06 18:45:00,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 06:45:00 WrapperNode [2023-09-06 18:45:00,270 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-06 18:45:00,271 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-06 18:45:00,271 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-06 18:45:00,271 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-06 18:45:00,275 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 06:45:00" (1/1) ... [2023-09-06 18:45:00,292 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 06:45:00" (1/1) ... [2023-09-06 18:45:00,308 INFO L138 Inliner]: procedures = 354, calls = 38, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2023-09-06 18:45:00,309 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-06 18:45:00,309 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-06 18:45:00,309 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-06 18:45:00,309 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-09-06 18:45:00,314 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 06:45:00" (1/1) ... [2023-09-06 18:45:00,314 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 06:45:00" (1/1) ... [2023-09-06 18:45:00,317 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 06:45:00" (1/1) ... [2023-09-06 18:45:00,318 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 06:45:00" (1/1) ... [2023-09-06 18:45:00,325 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 06:45:00" (1/1) ... [2023-09-06 18:45:00,326 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 06:45:00" (1/1) ... [2023-09-06 18:45:00,328 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 06:45:00" (1/1) ... [2023-09-06 18:45:00,329 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 06:45:00" (1/1) ... [2023-09-06 18:45:00,333 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-06 18:45:00,333 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-06 18:45:00,333 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-09-06 18:45:00,333 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-09-06 18:45:00,334 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 06:45:00" (1/1) ... [2023-09-06 18:45:00,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-06 18:45:00,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-06 18:45:00,362 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 18:45:00,366 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 18:45:00,387 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2023-09-06 18:45:00,387 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2023-09-06 18:45:00,387 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2023-09-06 18:45:00,387 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2023-09-06 18:45:00,388 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2023-09-06 18:45:00,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-06 18:45:00,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-06 18:45:00,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-06 18:45:00,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-06 18:45:00,389 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-06 18:45:00,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-06 18:45:00,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-06 18:45:00,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-06 18:45:00,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-06 18:45:00,390 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 18:45:00,576 INFO L236 CfgBuilder]: Building ICFG [2023-09-06 18:45:00,577 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-06 18:45:00,751 INFO L277 CfgBuilder]: Performing block encoding [2023-09-06 18:45:00,758 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-06 18:45:00,758 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-06 18:45:00,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.09 06:45:00 BoogieIcfgContainer [2023-09-06 18:45:00,760 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-06 18:45:00,762 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-06 18:45:00,762 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-09-06 18:45:00,764 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-09-06 18:45:00,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.09 06:44:59" (1/3) ... [2023-09-06 18:45:00,764 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27542893 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.09 06:45:00, skipping insertion in model container [2023-09-06 18:45:00,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 06:45:00" (2/3) ... [2023-09-06 18:45:00,766 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27542893 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.09 06:45:00, skipping insertion in model container [2023-09-06 18:45:00,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.09 06:45:00" (3/3) ... [2023-09-06 18:45:00,767 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_unknown_1_neg.i [2023-09-06 18:45:00,772 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-06 18:45:00,777 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-06 18:45:00,777 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-09-06 18:45:00,778 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-06 18:45:00,830 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-09-06 18:45:00,865 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-06 18:45:00,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-09-06 18:45:00,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-06 18:45:00,866 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 18:45:00,867 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 18:45:00,893 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-09-06 18:45:00,897 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-06 18:45:00,901 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;@1215c6f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-06 18:45:00,901 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-09-06 18:45:00,920 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-09-06 18:45:00,923 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-06 18:45:00,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1025315085, now seen corresponding path program 1 times [2023-09-06 18:45:00,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-06 18:45:00,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360628303] [2023-09-06 18:45:00,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-06 18:45:00,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-06 18:45:01,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-06 18:45:01,098 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-06 18:45:01,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-06 18:45:01,170 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-06 18:45:01,171 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-06 18:45:01,172 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-09-06 18:45:01,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-09-06 18:45:01,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-09-06 18:45:01,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2023-09-06 18:45:01,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-06 18:45:01,177 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-09-06 18:45:01,181 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-06 18:45:01,181 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-06 18:45:01,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.09 06:45:01 BasicIcfg [2023-09-06 18:45:01,224 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-06 18:45:01,228 INFO L158 Benchmark]: Toolchain (without parser) took 1448.44ms. Allocated memory is still 174.1MB. Free memory was 138.0MB in the beginning and 103.6MB in the end (delta: 34.4MB). Peak memory consumption was 34.2MB. Max. memory is 7.0GB. [2023-09-06 18:45:01,228 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 174.1MB. Free memory is still 129.8MB. There was no memory consumed. Max. memory is 7.0GB. [2023-09-06 18:45:01,229 INFO L158 Benchmark]: CACSL2BoogieTranslator took 493.43ms. Allocated memory is still 174.1MB. Free memory was 138.0MB in the beginning and 99.8MB in the end (delta: 38.2MB). Peak memory consumption was 37.7MB. Max. memory is 7.0GB. [2023-09-06 18:45:01,229 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.66ms. Allocated memory is still 174.1MB. Free memory was 99.8MB in the beginning and 96.8MB in the end (delta: 3.0MB). Peak memory consumption was 3.1MB. Max. memory is 7.0GB. [2023-09-06 18:45:01,230 INFO L158 Benchmark]: Boogie Preprocessor took 23.76ms. Allocated memory is still 174.1MB. Free memory was 96.8MB in the beginning and 94.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 7.0GB. [2023-09-06 18:45:01,231 INFO L158 Benchmark]: RCFGBuilder took 426.57ms. Allocated memory is still 174.1MB. Free memory was 94.4MB in the beginning and 141.9MB in the end (delta: -47.6MB). Peak memory consumption was 20.6MB. Max. memory is 7.0GB. [2023-09-06 18:45:01,232 INFO L158 Benchmark]: TraceAbstraction took 462.50ms. Allocated memory is still 174.1MB. Free memory was 140.9MB in the beginning and 103.6MB in the end (delta: 37.2MB). Peak memory consumption was 37.7MB. Max. memory is 7.0GB. [2023-09-06 18:45:01,235 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 174.1MB. Free memory is still 129.8MB. There was no memory consumed. Max. memory is 7.0GB. * CACSL2BoogieTranslator took 493.43ms. Allocated memory is still 174.1MB. Free memory was 138.0MB in the beginning and 99.8MB in the end (delta: 38.2MB). Peak memory consumption was 37.7MB. Max. memory is 7.0GB. * Boogie Procedure Inliner took 37.66ms. Allocated memory is still 174.1MB. Free memory was 99.8MB in the beginning and 96.8MB in the end (delta: 3.0MB). Peak memory consumption was 3.1MB. Max. memory is 7.0GB. * Boogie Preprocessor took 23.76ms. Allocated memory is still 174.1MB. Free memory was 96.8MB in the beginning and 94.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 7.0GB. * RCFGBuilder took 426.57ms. Allocated memory is still 174.1MB. Free memory was 94.4MB in the beginning and 141.9MB in the end (delta: -47.6MB). Peak memory consumption was 20.6MB. Max. memory is 7.0GB. * TraceAbstraction took 462.50ms. Allocated memory is still 174.1MB. Free memory was 140.9MB in the beginning and 103.6MB in the end (delta: 37.2MB). Peak memory consumption was 37.7MB. Max. memory is 7.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 231]: Unsoundness Warning unspecified type, defaulting to int C: short [231] - GenericResultAtLocation [Line: 232]: Unsoundness Warning unspecified type, defaulting to int C: short [232] - GenericResultAtLocation [Line: 730]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [730] * 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: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1351] 0 int g; VAL [g=0] [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [g=0, mut={3:0}] [L1353] 0 pthread_cond_t cond = { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, {0, 0} } }; VAL [cond={4:0}, g=0, mut={3:0}] [L1373] 0 pthread_t t1; VAL [\old(argc)=1150, argc=1150, argv={1151:1152}, argv={1151:1152}, cond={4:0}, g=0, mut={3:0}, t1={6:0}] [L1374] 0 pthread_t t2; VAL [\old(argc)=1150, argc=1150, argv={1151:1152}, argv={1151:1152}, cond={4:0}, g=0, mut={3:0}, t1={6:0}, t2={5:0}] [L1375] FCALL, FORK 0 pthread_create(&t1,((void *)0),f1,((void *)0)) VAL [\old(argc)=1150, argc=1150, argv={1151:1152}, argv={1151:1152}, cond={4:0}, g=0, mut={3:0}, pthread_create(&t1,((void *)0),f1,((void *)0))=-1, ptr={0:0}, t1={6:0}, t2={5:0}] [L1377] FCALL, FORK 0 pthread_create(&t2,((void *)0),f2,((void *)0)) VAL [\old(argc)=1150, argc=1150, argv={1151:1152}, argv={1151:1152}, cond={4:0}, g=0, mut={3:0}, pthread_create(&t2,((void *)0),f2,((void *)0))=0, ptr={0:0}, t1={6:0}, t2={5:0}] [L1378] 0 \read(t1) VAL [\old(argc)=1150, \read(t1)=-1, argc=1150, argv={1151:1152}, argv={1151:1152}, cond={4:0}, g=0, mut={3:0}, ptr={0:0}, t1={6:0}, t2={5:0}] [L1365] CALL 2 __VERIFIER_assert(!(g == 0)) [L19] COND TRUE 2 !(cond) VAL [\old(cond)=0, cond=0, cond={4:0}, g=0, mut={3:0}, ptr={0:0}] [L19] 2 reach_error() VAL [\old(cond)=0, cond=0, cond={4:0}, g=0, mut={3:0}, ptr={0:0}] - UnprovableResult [Line: 1375]: 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: 1377]: 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, 118 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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, 55 NumberOfCodeBlocks, 55 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 18:45:01,250 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 18:45:01,451 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...