/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 --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_THREAD_INSTANCE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false -i ../../../trunk/examples/svcomp/goblint-regression/04-mutex_25-single_acc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-44940e9-m [2022-11-09 16:43:52,843 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2022-11-09 16:43:52,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-09 16:43:52,884 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-09 16:43:52,884 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-09 16:43:52,885 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-09 16:43:52,885 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-09 16:43:52,886 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-09 16:43:52,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-09 16:43:52,888 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-09 16:43:52,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-09 16:43:52,893 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-09 16:43:52,893 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-09 16:43:52,894 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-09 16:43:52,896 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-11-09 16:43:52,900 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-09 16:43:52,901 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-09 16:43:52,901 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-09 16:43:52,906 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2022-11-09 16:43:52,930 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-09 16:43:52,930 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-09 16:43:52,931 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-09 16:43:52,931 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-09 16:43:52,932 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-09 16:43:52,932 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-09 16:43:52,932 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-09 16:43:52,932 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-09 16:43:52,932 INFO L138 SettingsManager]: * Use SBE=true [2022-11-09 16:43:52,933 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-09 16:43:52,933 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-09 16:43:52,933 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-09 16:43:52,933 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-09 16:43:52,933 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-09 16:43:52,934 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-09 16:43:52,934 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-09 16:43:52,934 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-09 16:43:52,934 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-09 16:43:52,934 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-09 16:43:52,934 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-09 16:43:52,934 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-09 16:43:52,934 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-09 16:43:52,934 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-09 16:43:52,934 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-11-09 16:43:52,935 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-09 16:43:52,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-09 16:43:52,935 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-09 16:43:52,936 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-09 16:43:52,936 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-09 16:43:52,936 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-09 16:43:52,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-09 16:43:52,936 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-09 16:43:52,936 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-09 16:43:52,936 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-09 16:43:52,936 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-09 16:43:52,937 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-09 16:43:52,937 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2022-11-09 16:43:53,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-09 16:43:53,132 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-09 16:43:53,134 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-09 16:43:53,135 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-09 16:43:53,139 INFO L275 PluginConnector]: CDTParser initialized [2022-11-09 16:43:53,140 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_25-single_acc.i [2022-11-09 16:43:53,193 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/616f492cb/323e567ad10e4c46901d893d4ce1e499/FLAGfaf702b02 [2022-11-09 16:43:53,587 INFO L306 CDTParser]: Found 1 translation units. [2022-11-09 16:43:53,587 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_25-single_acc.i [2022-11-09 16:43:53,598 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/616f492cb/323e567ad10e4c46901d893d4ce1e499/FLAGfaf702b02 [2022-11-09 16:43:53,606 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/616f492cb/323e567ad10e4c46901d893d4ce1e499 [2022-11-09 16:43:53,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-09 16:43:53,609 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-11-09 16:43:53,610 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-09 16:43:53,610 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-09 16:43:53,612 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-09 16:43:53,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:43:53" (1/1) ... [2022-11-09 16:43:53,613 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52804853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:43:53, skipping insertion in model container [2022-11-09 16:43:53,614 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:43:53" (1/1) ... [2022-11-09 16:43:53,618 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-09 16:43:53,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-09 16:43:53,892 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-09 16:43:53,898 INFO L203 MainTranslator]: Completed pre-run [2022-11-09 16:43:53,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-09 16:43:53,956 INFO L208 MainTranslator]: Completed translation [2022-11-09 16:43:53,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:43:53 WrapperNode [2022-11-09 16:43:53,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-09 16:43:53,957 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-09 16:43:53,958 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-09 16:43:53,958 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-09 16:43:53,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:43:53" (1/1) ... [2022-11-09 16:43:53,978 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:43:53" (1/1) ... [2022-11-09 16:43:53,992 INFO L138 Inliner]: procedures = 159, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2022-11-09 16:43:53,993 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-09 16:43:53,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-09 16:43:53,993 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-09 16:43:53,993 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-09 16:43:53,998 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:43:53" (1/1) ... [2022-11-09 16:43:53,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:43:53" (1/1) ... [2022-11-09 16:43:54,008 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:43:53" (1/1) ... [2022-11-09 16:43:54,008 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:43:53" (1/1) ... [2022-11-09 16:43:54,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:43:53" (1/1) ... [2022-11-09 16:43:54,019 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:43:53" (1/1) ... [2022-11-09 16:43:54,019 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:43:53" (1/1) ... [2022-11-09 16:43:54,020 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:43:53" (1/1) ... [2022-11-09 16:43:54,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-09 16:43:54,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-09 16:43:54,022 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-09 16:43:54,022 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-09 16:43:54,024 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:43:53" (1/1) ... [2022-11-09 16:43:54,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-09 16:43:54,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-09 16:43:54,046 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) [2022-11-09 16:43:54,067 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 [2022-11-09 16:43:54,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-09 16:43:54,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-09 16:43:54,102 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-09 16:43:54,102 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-09 16:43:54,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-09 16:43:54,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-09 16:43:54,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-09 16:43:54,103 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-09 16:43:54,207 INFO L235 CfgBuilder]: Building ICFG [2022-11-09 16:43:54,208 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-09 16:43:54,306 INFO L276 CfgBuilder]: Performing block encoding [2022-11-09 16:43:54,310 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-09 16:43:54,311 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-09 16:43:54,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:43:54 BoogieIcfgContainer [2022-11-09 16:43:54,312 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-09 16:43:54,314 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-09 16:43:54,314 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-09 16:43:54,318 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-09 16:43:54,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:43:53" (1/3) ... [2022-11-09 16:43:54,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20057021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:43:54, skipping insertion in model container [2022-11-09 16:43:54,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:43:53" (2/3) ... [2022-11-09 16:43:54,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20057021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:43:54, skipping insertion in model container [2022-11-09 16:43:54,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:43:54" (3/3) ... [2022-11-09 16:43:54,320 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_25-single_acc.i [2022-11-09 16:43:54,325 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-09 16:43:54,331 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-09 16:43:54,331 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-09 16:43:54,332 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-09 16:43:54,363 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-09 16:43:54,390 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-09 16:43:54,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-09 16:43:54,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-09 16:43:54,392 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) [2022-11-09 16:43:54,401 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 [2022-11-09 16:43:54,428 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-09 16:43:54,442 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread1of1ForFork0 ======== [2022-11-09 16:43:54,446 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;@50beb9ce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-09 16:43:54,447 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-09 16:43:54,527 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE] === [2022-11-09 16:43:54,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-09 16:43:54,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1239924182, now seen corresponding path program 1 times [2022-11-09 16:43:54,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-09 16:43:54,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86111310] [2022-11-09 16:43:54,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-09 16:43:54,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-09 16:43:54,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-09 16:43:54,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-09 16:43:54,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-09 16:43:54,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86111310] [2022-11-09 16:43:54,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86111310] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-09 16:43:54,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-09 16:43:54,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-09 16:43:54,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412491916] [2022-11-09 16:43:54,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-09 16:43:54,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-09 16:43:54,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-09 16:43:54,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-09 16:43:54,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-09 16:43:54,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-09 16:43:54,695 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-09 16:43:54,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2022-11-09 16:43:54,696 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-09 16:43:54,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-09 16:43:54,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-09 16:43:54,722 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE] === [2022-11-09 16:43:54,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-09 16:43:54,722 INFO L85 PathProgramCache]: Analyzing trace with hash -960580309, now seen corresponding path program 1 times [2022-11-09 16:43:54,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-09 16:43:54,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504954433] [2022-11-09 16:43:54,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-09 16:43:54,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-09 16:43:54,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-09 16:43:54,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-09 16:43:54,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-09 16:43:54,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504954433] [2022-11-09 16:43:54,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504954433] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-09 16:43:54,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-09 16:43:54,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-09 16:43:54,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982529426] [2022-11-09 16:43:54,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-09 16:43:54,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-09 16:43:54,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-09 16:43:54,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-09 16:43:54,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-09 16:43:54,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-09 16:43:54,796 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-09 16:43:54,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 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) [2022-11-09 16:43:54,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-09 16:43:54,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-09 16:43:54,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-09 16:43:54,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-09 16:43:54,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-09 16:43:54,833 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE] === [2022-11-09 16:43:54,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-09 16:43:54,833 INFO L85 PathProgramCache]: Analyzing trace with hash 337582081, now seen corresponding path program 1 times [2022-11-09 16:43:54,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-09 16:43:54,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288317134] [2022-11-09 16:43:54,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-09 16:43:54,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-09 16:43:54,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-09 16:43:54,854 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-09 16:43:54,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-09 16:43:54,880 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-09 16:43:54,881 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-09 16:43:54,881 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 2 remaining) [2022-11-09 16:43:54,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 2 remaining) [2022-11-09 16:43:54,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-09 16:43:54,887 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-09 16:43:54,888 INFO L307 ceAbstractionStarter]: Result for error location t_funThread1of1ForFork0 was UNSAFE,UNKNOWN (1/3) [2022-11-09 16:43:54,890 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-09 16:43:54,891 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-09 16:43:54,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 04:43:54 BasicIcfg [2022-11-09 16:43:54,912 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-09 16:43:54,912 INFO L158 Benchmark]: Toolchain (without parser) took 1303.36ms. Allocated memory was 200.3MB in the beginning and 262.1MB in the end (delta: 61.9MB). Free memory was 142.6MB in the beginning and 161.0MB in the end (delta: -18.5MB). Peak memory consumption was 43.6MB. Max. memory is 8.0GB. [2022-11-09 16:43:54,913 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 200.3MB. Free memory is still 160.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-11-09 16:43:54,913 INFO L158 Benchmark]: CACSL2BoogieTranslator took 346.94ms. Allocated memory was 200.3MB in the beginning and 262.1MB in the end (delta: 61.9MB). Free memory was 142.4MB in the beginning and 226.6MB in the end (delta: -84.1MB). Peak memory consumption was 11.0MB. Max. memory is 8.0GB. [2022-11-09 16:43:54,913 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.36ms. Allocated memory is still 262.1MB. Free memory was 226.6MB in the beginning and 225.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-11-09 16:43:54,913 INFO L158 Benchmark]: Boogie Preprocessor took 27.80ms. Allocated memory is still 262.1MB. Free memory was 225.0MB in the beginning and 223.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-11-09 16:43:54,914 INFO L158 Benchmark]: RCFGBuilder took 290.49ms. Allocated memory is still 262.1MB. Free memory was 223.4MB in the beginning and 211.9MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-11-09 16:43:54,914 INFO L158 Benchmark]: TraceAbstraction took 598.30ms. Allocated memory is still 262.1MB. Free memory was 211.4MB in the beginning and 161.0MB in the end (delta: 50.3MB). Peak memory consumption was 50.3MB. Max. memory is 8.0GB. [2022-11-09 16:43:54,915 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 200.3MB. Free memory is still 160.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 346.94ms. Allocated memory was 200.3MB in the beginning and 262.1MB in the end (delta: 61.9MB). Free memory was 142.4MB in the beginning and 226.6MB in the end (delta: -84.1MB). Peak memory consumption was 11.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 35.36ms. Allocated memory is still 262.1MB. Free memory was 226.6MB in the beginning and 225.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.80ms. Allocated memory is still 262.1MB. Free memory was 225.0MB in the beginning and 223.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 290.49ms. Allocated memory is still 262.1MB. Free memory was 223.4MB in the beginning and 211.9MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 598.30ms. Allocated memory is still 262.1MB. Free memory was 211.4MB in the beginning and 161.0MB in the end (delta: 50.3MB). Peak memory consumption was 50.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 748, positive: 733, positive conditional: 134, positive unconditional: 599, negative: 15, negative conditional: 6, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 743, positive: 733, positive conditional: 134, positive unconditional: 599, negative: 10, negative conditional: 1, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 743, positive: 733, positive conditional: 134, positive unconditional: 599, negative: 10, negative conditional: 1, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 745, positive: 733, positive conditional: 1, positive unconditional: 732, negative: 12, negative conditional: 1, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 745, positive: 733, positive conditional: 1, positive unconditional: 732, negative: 12, negative conditional: 1, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 745, positive: 733, positive conditional: 1, positive unconditional: 732, negative: 12, negative conditional: 1, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 611, positive: 600, positive conditional: 1, positive unconditional: 599, negative: 11, negative conditional: 1, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 611, positive: 596, positive conditional: 0, positive unconditional: 596, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 15, positive: 4, positive conditional: 1, positive unconditional: 3, negative: 11, negative conditional: 1, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 55, positive: 39, positive conditional: 1, positive unconditional: 38, negative: 15, negative conditional: 2, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 745, positive: 133, positive conditional: 0, positive unconditional: 133, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 611, unknown conditional: 2, unknown unconditional: 609] , Statistics on independence cache: Total cache size (in pairs): 611, Positive cache size: 600, Positive conditional cache size: 1, Positive unconditional cache size: 599, Negative cache size: 11, Negative conditional cache size: 1, Negative unconditional cache size: 10, Eliminated conditions: 0, Maximal queried relation: 1, Independence queries for same thread: 5 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 41, Number of trivial persistent sets: 33, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 608, positive: 599, positive conditional: 0, positive unconditional: 599, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 748, positive: 733, positive conditional: 134, positive unconditional: 599, negative: 15, negative conditional: 6, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 743, positive: 733, positive conditional: 134, positive unconditional: 599, negative: 10, negative conditional: 1, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 743, positive: 733, positive conditional: 134, positive unconditional: 599, negative: 10, negative conditional: 1, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 745, positive: 733, positive conditional: 1, positive unconditional: 732, negative: 12, negative conditional: 1, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 745, positive: 733, positive conditional: 1, positive unconditional: 732, negative: 12, negative conditional: 1, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 745, positive: 733, positive conditional: 1, positive unconditional: 732, negative: 12, negative conditional: 1, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 611, positive: 600, positive conditional: 1, positive unconditional: 599, negative: 11, negative conditional: 1, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 611, positive: 596, positive conditional: 0, positive unconditional: 596, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 15, positive: 4, positive conditional: 1, positive unconditional: 3, negative: 11, negative conditional: 1, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 55, positive: 39, positive conditional: 1, positive unconditional: 38, negative: 15, negative conditional: 2, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 745, positive: 133, positive conditional: 0, positive unconditional: 133, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 611, unknown conditional: 2, unknown unconditional: 609] , Statistics on independence cache: Total cache size (in pairs): 611, Positive cache size: 600, Positive conditional cache size: 1, Positive unconditional cache size: 599, Negative cache size: 11, Negative conditional cache size: 1, Negative unconditional cache size: 10, Eliminated conditions: 0, Maximal queried relation: 1, Independence queries for same thread: 5 - DataRaceFoundResult [Line: 681]: Data race detected Data race detected The following path leads to a data race: [L679] 0 int x; VAL [x=0] [L685] 0 pthread_t id1, id2; VAL [id1={3:0}, id2={2:0}, x=0] [L686] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, id1={3:0}, id2={2:0}, pthread_create(&id1, ((void *)0), t_fun, ((void *)0))=-1, x=0] [L687] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, id1={3:0}, id2={2:0}, pthread_create(&id2, ((void *)0), t_fun, ((void *)0))=0, x=0] [L681] 2 x++ VAL [arg={0:0}, arg={0:0}, x=1, x++=5x++=0] [L688] 0 return 0; VAL [\result=0, arg={0:0}, arg={0:0}, id1={3:0}, id2={2:0}, x=1, x++=5x++=0] [L688] 0 return 0; VAL [\result=0, arg={0:0}, arg={0:0}, id2={2:0}, x=1, x++=5x++=0] [L688] 0 return 0; VAL [\result=0, arg={0:0}, arg={0:0}, x=1, x++=5x++=0] [L681] 1 x++ VAL [arg={0:0}, arg={0:0}, x=1, x++=5x++=0] Now there is a data race on ~x~0 between C: x++ [681] and C: x++ [681] - UnprovableResult [Line: 681]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: t_funThread1of1ForFork0 with 1 thread instances CFG has 4 procedures, 79 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 94 NumberOfCodeBlocks, 94 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 55 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! [2022-11-09 16:43:54,967 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 [2022-11-09 16:43:55,169 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...