/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7707f89-m [2022-11-15 22:41:31,638 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-15 22:41:31,640 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-15 22:41:31,671 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-11-15 22:41:31,700 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2022-11-15 22:41:31,727 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-15 22:41:31,727 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-15 22:41:31,727 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-15 22:41:31,727 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-15 22:41:31,728 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-15 22:41:31,728 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-15 22:41:31,728 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-15 22:41:31,728 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-15 22:41:31,729 INFO L138 SettingsManager]: * Use SBE=true [2022-11-15 22:41:31,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-15 22:41:31,729 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-15 22:41:31,729 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-15 22:41:31,729 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-15 22:41:31,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-15 22:41:31,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-15 22:41:31,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-15 22:41:31,730 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-15 22:41:31,730 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-15 22:41:31,730 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-15 22:41:31,730 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-15 22:41:31,730 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-15 22:41:31,730 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-15 22:41:31,730 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-15 22:41:31,730 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-11-15 22:41:31,731 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-15 22:41:31,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-15 22:41:31,731 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-15 22:41:31,731 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-15 22:41:31,731 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-15 22:41:31,731 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-15 22:41:31,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-15 22:41:31,731 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-15 22:41:31,731 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-15 22:41:31,731 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-15 22:41:31,732 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-15 22:41:31,732 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-15 22:41:31,732 INFO L138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-11-15 22:41:31,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-15 22:41:31,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-15 22:41:31,926 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-15 22:41:31,926 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-15 22:41:31,927 INFO L275 PluginConnector]: CDTParser initialized [2022-11-15 22:41:31,928 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i [2022-11-15 22:41:31,976 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20ae4193a/149deda057ad4c949295a0a86ad0bfc0/FLAG282714ccc [2022-11-15 22:41:32,393 INFO L306 CDTParser]: Found 1 translation units. [2022-11-15 22:41:32,393 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i [2022-11-15 22:41:32,402 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20ae4193a/149deda057ad4c949295a0a86ad0bfc0/FLAG282714ccc [2022-11-15 22:41:32,411 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20ae4193a/149deda057ad4c949295a0a86ad0bfc0 [2022-11-15 22:41:32,412 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-15 22:41:32,413 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-11-15 22:41:32,414 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-15 22:41:32,414 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-15 22:41:32,422 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-15 22:41:32,423 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:41:32" (1/1) ... [2022-11-15 22:41:32,423 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37771671 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:41:32, skipping insertion in model container [2022-11-15 22:41:32,423 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:41:32" (1/1) ... [2022-11-15 22:41:32,428 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-15 22:41:32,458 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-15 22:41:32,588 WARN L233 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_19-publish-precision_unknown_1_pos.i[1103,1116] [2022-11-15 22:41:32,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-15 22:41:32,717 INFO L203 MainTranslator]: Completed pre-run [2022-11-15 22:41:32,727 WARN L233 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_19-publish-precision_unknown_1_pos.i[1103,1116] [2022-11-15 22:41:32,754 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-15 22:41:32,782 INFO L208 MainTranslator]: Completed translation [2022-11-15 22:41:32,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:41:32 WrapperNode [2022-11-15 22:41:32,782 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-15 22:41:32,783 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-15 22:41:32,783 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-15 22:41:32,783 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-15 22:41:32,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:41:32" (1/1) ... [2022-11-15 22:41:32,809 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:41:32" (1/1) ... [2022-11-15 22:41:32,828 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2022-11-15 22:41:32,828 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-15 22:41:32,829 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-15 22:41:32,829 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-15 22:41:32,829 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-15 22:41:32,834 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:41:32" (1/1) ... [2022-11-15 22:41:32,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:41:32" (1/1) ... [2022-11-15 22:41:32,839 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:41:32" (1/1) ... [2022-11-15 22:41:32,840 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:41:32" (1/1) ... [2022-11-15 22:41:32,852 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:41:32" (1/1) ... [2022-11-15 22:41:32,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:41:32" (1/1) ... [2022-11-15 22:41:32,857 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:41:32" (1/1) ... [2022-11-15 22:41:32,858 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:41:32" (1/1) ... [2022-11-15 22:41:32,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-15 22:41:32,860 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-15 22:41:32,860 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-15 22:41:32,861 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-15 22:41:32,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:41:32" (1/1) ... [2022-11-15 22:41:32,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-15 22:41:32,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-15 22:41:32,888 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) [2022-11-15 22:41:32,906 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 [2022-11-15 22:41:32,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-15 22:41:32,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-15 22:41:32,918 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-15 22:41:32,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-15 22:41:32,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-15 22:41:32,919 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-15 22:41:32,919 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-15 22:41:32,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-15 22:41:32,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-15 22:41:32,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-15 22:41:32,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-15 22:41:32,920 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-15 22:41:33,022 INFO L235 CfgBuilder]: Building ICFG [2022-11-15 22:41:33,024 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-15 22:41:33,151 INFO L276 CfgBuilder]: Performing block encoding [2022-11-15 22:41:33,155 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-15 22:41:33,156 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-15 22:41:33,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:41:33 BoogieIcfgContainer [2022-11-15 22:41:33,157 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-15 22:41:33,158 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-15 22:41:33,159 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-15 22:41:33,161 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-15 22:41:33,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:41:32" (1/3) ... [2022-11-15 22:41:33,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d68d155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:41:33, skipping insertion in model container [2022-11-15 22:41:33,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:41:32" (2/3) ... [2022-11-15 22:41:33,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d68d155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:41:33, skipping insertion in model container [2022-11-15 22:41:33,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:41:33" (3/3) ... [2022-11-15 22:41:33,163 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_1_pos.i [2022-11-15 22:41:33,168 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-15 22:41:33,174 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-15 22:41:33,174 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-15 22:41:33,175 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-15 22:41:33,203 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-15 22:41:33,233 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-15 22:41:33,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-15 22:41:33,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-15 22:41:33,236 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) [2022-11-15 22:41:33,246 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 [2022-11-15 22:41:33,271 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-15 22:41:33,280 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-15 22:41:33,284 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;@491394f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-15 22:41:33,285 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-15 22:41:33,384 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-15 22:41:33,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-15 22:41:33,388 INFO L85 PathProgramCache]: Analyzing trace with hash -591045949, now seen corresponding path program 1 times [2022-11-15 22:41:33,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-15 22:41:33,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507783343] [2022-11-15 22:41:33,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-15 22:41:33,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-15 22:41:33,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-15 22:41:33,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-15 22:41:33,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-15 22:41:33,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507783343] [2022-11-15 22:41:33,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507783343] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-15 22:41:33,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-15 22:41:33,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-15 22:41:33,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565489794] [2022-11-15 22:41:33,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-15 22:41:33,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-15 22:41:33,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-15 22:41:33,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-15 22:41:33,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-15 22:41:33,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-15 22:41:33,772 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-15 22:41:33,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-15 22:41:33,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-15 22:41:33,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-15 22:41:33,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-15 22:41:33,828 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-15 22:41:33,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-15 22:41:33,828 INFO L85 PathProgramCache]: Analyzing trace with hash -115763456, now seen corresponding path program 1 times [2022-11-15 22:41:33,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-15 22:41:33,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129959906] [2022-11-15 22:41:33,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-15 22:41:33,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-15 22:41:33,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-15 22:41:34,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-15 22:41:34,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-15 22:41:34,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129959906] [2022-11-15 22:41:34,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129959906] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-15 22:41:34,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-15 22:41:34,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-15 22:41:34,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000751129] [2022-11-15 22:41:34,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-15 22:41:34,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-15 22:41:34,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-15 22:41:34,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-15 22:41:34,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-15 22:41:34,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-15 22:41:34,052 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-15 22:41:34,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-15 22:41:34,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-15 22:41:34,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-15 22:41:34,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-15 22:41:34,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-15 22:41:34,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-15 22:41:34,150 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-15 22:41:34,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-15 22:41:34,151 INFO L85 PathProgramCache]: Analyzing trace with hash 383193645, now seen corresponding path program 1 times [2022-11-15 22:41:34,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-15 22:41:34,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174332697] [2022-11-15 22:41:34,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-15 22:41:34,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-15 22:41:34,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-15 22:41:34,163 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-15 22:41:34,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-15 22:41:34,189 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-15 22:41:34,189 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-15 22:41:34,190 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-15 22:41:34,191 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-11-15 22:41:34,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-15 22:41:34,195 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-15 22:41:34,198 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-15 22:41:34,199 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-15 22:41:34,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 10:41:34 BasicIcfg [2022-11-15 22:41:34,241 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-15 22:41:34,242 INFO L158 Benchmark]: Toolchain (without parser) took 1828.26ms. Allocated memory was 201.3MB in the beginning and 276.8MB in the end (delta: 75.5MB). Free memory was 170.6MB in the beginning and 190.3MB in the end (delta: -19.7MB). Peak memory consumption was 55.9MB. Max. memory is 8.0GB. [2022-11-15 22:41:34,242 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 201.3MB. Free memory is still 156.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-11-15 22:41:34,243 INFO L158 Benchmark]: CACSL2BoogieTranslator took 368.33ms. Allocated memory was 201.3MB in the beginning and 276.8MB in the end (delta: 75.5MB). Free memory was 170.6MB in the beginning and 236.7MB in the end (delta: -66.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-11-15 22:41:34,243 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.30ms. Allocated memory is still 276.8MB. Free memory was 236.7MB in the beginning and 234.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-11-15 22:41:34,245 INFO L158 Benchmark]: Boogie Preprocessor took 30.78ms. Allocated memory is still 276.8MB. Free memory was 234.9MB in the beginning and 233.6MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-11-15 22:41:34,247 INFO L158 Benchmark]: RCFGBuilder took 296.71ms. Allocated memory is still 276.8MB. Free memory was 233.2MB in the beginning and 220.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-11-15 22:41:34,247 INFO L158 Benchmark]: TraceAbstraction took 1082.74ms. Allocated memory is still 276.8MB. Free memory was 219.9MB in the beginning and 190.3MB in the end (delta: 29.6MB). Peak memory consumption was 31.2MB. Max. memory is 8.0GB. [2022-11-15 22:41:34,248 INFO L339 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 201.3MB. Free memory is still 156.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 368.33ms. Allocated memory was 201.3MB in the beginning and 276.8MB in the end (delta: 75.5MB). Free memory was 170.6MB in the beginning and 236.7MB in the end (delta: -66.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.30ms. Allocated memory is still 276.8MB. Free memory was 236.7MB in the beginning and 234.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.78ms. Allocated memory is still 276.8MB. Free memory was 234.9MB in the beginning and 233.6MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 296.71ms. Allocated memory is still 276.8MB. Free memory was 233.2MB in the beginning and 220.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 1082.74ms. Allocated memory is still 276.8MB. Free memory was 219.9MB in the beginning and 190.3MB in the end (delta: 29.6MB). Peak memory consumption was 31.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 329, independent: 318, independent conditional: 59, independent unconditional: 259, dependent: 11, dependent conditional: 2, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 329, independent: 318, independent conditional: 59, independent unconditional: 259, dependent: 11, dependent conditional: 2, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 329, independent: 318, independent conditional: 59, independent unconditional: 259, dependent: 11, dependent conditional: 2, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 331, independent: 318, independent conditional: 0, independent unconditional: 318, dependent: 13, dependent conditional: 2, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 331, independent: 318, independent conditional: 0, independent unconditional: 318, dependent: 13, dependent conditional: 2, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 331, independent: 318, independent conditional: 0, independent unconditional: 318, dependent: 13, dependent conditional: 2, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 270, independent: 259, independent conditional: 0, independent unconditional: 259, dependent: 11, dependent conditional: 2, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 270, independent: 252, independent conditional: 0, independent unconditional: 252, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 18, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 11, dependent conditional: 2, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 18, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 11, dependent conditional: 2, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 88, independent: 61, independent conditional: 0, independent unconditional: 61, dependent: 28, dependent conditional: 7, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 331, independent: 59, independent conditional: 0, independent unconditional: 59, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 270, unknown conditional: 2, unknown unconditional: 268] , Statistics on independence cache: Total cache size (in pairs): 270, Positive cache size: 259, Positive conditional cache size: 0, Positive unconditional cache size: 259, Negative cache size: 11, Negative conditional cache size: 2, Negative unconditional cache size: 9, 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: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 66, Number of trivial persistent sets: 48, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 268, independent: 259, independent conditional: 0, independent unconditional: 259, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 329, independent: 318, independent conditional: 59, independent unconditional: 259, dependent: 11, dependent conditional: 2, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 329, independent: 318, independent conditional: 59, independent unconditional: 259, dependent: 11, dependent conditional: 2, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 329, independent: 318, independent conditional: 59, independent unconditional: 259, dependent: 11, dependent conditional: 2, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 331, independent: 318, independent conditional: 0, independent unconditional: 318, dependent: 13, dependent conditional: 2, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 331, independent: 318, independent conditional: 0, independent unconditional: 318, dependent: 13, dependent conditional: 2, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 331, independent: 318, independent conditional: 0, independent unconditional: 318, dependent: 13, dependent conditional: 2, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 270, independent: 259, independent conditional: 0, independent unconditional: 259, dependent: 11, dependent conditional: 2, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 270, independent: 252, independent conditional: 0, independent unconditional: 252, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 18, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 11, dependent conditional: 2, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 18, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 11, dependent conditional: 2, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 88, independent: 61, independent conditional: 0, independent unconditional: 61, dependent: 28, dependent conditional: 7, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 331, independent: 59, independent conditional: 0, independent unconditional: 59, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 270, unknown conditional: 2, unknown unconditional: 268] , Statistics on independence cache: Total cache size (in pairs): 270, Positive cache size: 259, Positive conditional cache size: 0, Positive unconditional cache size: 259, Negative cache size: 11, Negative conditional cache size: 2, Negative unconditional cache size: 9, 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 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [mutex2={3:0}] [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [mutex1={4:0}, mutex2={3:0}] [L681] 0 int glob1 = 0; VAL [glob1=0, mutex1={4:0}, mutex2={3:0}] [L696] 0 pthread_t id; VAL [glob1=0, id={5:0}, mutex1={4:0}, mutex2={3:0}] [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={5:0}, mutex1={4:0}, mutex2={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L687] 1 glob1 = 5 VAL [arg={0:0}, arg={0:0}, glob1=5, mutex1={4:0}, mutex2={3:0}] [L699] CALL 0 __VERIFIER_assert(glob1 == 0) [L19] COND TRUE 0 !(cond) VAL [\old(cond)=0, arg={0:0}, arg={0:0}, cond=0, glob1=5, mutex1={4:0}, mutex2={3:0}] [L19] 0 reach_error() VAL [\old(cond)=0, arg={0:0}, arg={0:0}, cond=0, glob1=5, mutex1={4:0}, mutex2={3:0}] - UnprovableResult [Line: 697]: 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 for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 87 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, 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: 10, 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, 0.4s InterpolantComputationTime, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 88 ConstructedInterpolants, 0 QuantifiedInterpolants, 254 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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! [2022-11-15 22:41:34,276 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 [2022-11-15 22:41:34,477 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...