/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 --traceabstraction.maximal.amount.of.steps.the.threads.are.allowed.to.take.successively 1 --traceabstraction.enable.heuristic.with.loops.as.step.type true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_94-alloc_region_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-218013a [2023-05-04 02:37:37,408 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-05-04 02:37:37,410 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-05-04 02:37:37,448 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-05-04 02:37:37,503 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-05-04 02:37:37,503 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-05-04 02:37:37,504 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-05-04 02:37:37,505 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-04 02:37:37,542 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-04 02:37:37,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-04 02:37:37,542 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-04 02:37:37,542 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-04 02:37:37,543 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-04 02:37:37,543 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-04 02:37:37,543 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-04 02:37:37,544 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-04 02:37:37,544 INFO L138 SettingsManager]: * Use SBE=true [2023-05-04 02:37:37,544 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-04 02:37:37,544 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-04 02:37:37,544 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-04 02:37:37,544 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-04 02:37:37,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-04 02:37:37,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-04 02:37:37,545 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-04 02:37:37,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-04 02:37:37,545 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-04 02:37:37,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-04 02:37:37,545 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-04 02:37:37,545 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-04 02:37:37,545 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-04 02:37:37,545 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-04 02:37:37,545 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-04 02:37:37,546 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-04 02:37:37,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 02:37:37,546 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-04 02:37:37,546 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-04 02:37:37,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-04 02:37:37,546 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-04 02:37:37,546 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-04 02:37:37,546 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-04 02:37:37,546 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-04 02:37:37,547 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-04 02:37:37,547 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-04 02:37:37,547 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-04 02:37:37,547 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> true [2023-05-04 02:37:37,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-04 02:37:37,804 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-04 02:37:37,806 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-04 02:37:37,807 INFO L271 PluginConnector]: Initializing CDTParser... [2023-05-04 02:37:37,809 INFO L275 PluginConnector]: CDTParser initialized [2023-05-04 02:37:37,810 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_94-alloc_region_racing.i [2023-05-04 02:37:37,872 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39f98767b/97ba5cca16c34b01b50057deab157233/FLAG67c5947d0 [2023-05-04 02:37:38,481 INFO L306 CDTParser]: Found 1 translation units. [2023-05-04 02:37:38,482 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_94-alloc_region_racing.i [2023-05-04 02:37:38,504 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39f98767b/97ba5cca16c34b01b50057deab157233/FLAG67c5947d0 [2023-05-04 02:37:38,839 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39f98767b/97ba5cca16c34b01b50057deab157233 [2023-05-04 02:37:38,842 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-04 02:37:38,844 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-05-04 02:37:38,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-05-04 02:37:38,848 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-05-04 02:37:38,851 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-05-04 02:37:38,852 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 02:37:38" (1/1) ... [2023-05-04 02:37:38,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@644d4b92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 02:37:38, skipping insertion in model container [2023-05-04 02:37:38,854 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 02:37:38" (1/1) ... [2023-05-04 02:37:38,862 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-05-04 02:37:38,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-05-04 02:37:39,362 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_94-alloc_region_racing.i[58135,58148] [2023-05-04 02:37:39,400 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 02:37:39,411 INFO L203 MainTranslator]: Completed pre-run [2023-05-04 02:37:39,446 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_94-alloc_region_racing.i[58135,58148] [2023-05-04 02:37:39,457 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 02:37:39,530 INFO L208 MainTranslator]: Completed translation [2023-05-04 02:37:39,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 02:37:39 WrapperNode [2023-05-04 02:37:39,530 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-05-04 02:37:39,531 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-04 02:37:39,531 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-04 02:37:39,531 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-04 02:37:39,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 02:37:39" (1/1) ... [2023-05-04 02:37:39,554 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 02:37:39" (1/1) ... [2023-05-04 02:37:39,583 INFO L138 Inliner]: procedures = 377, calls = 72, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 236 [2023-05-04 02:37:39,583 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-04 02:37:39,584 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-04 02:37:39,584 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-04 02:37:39,584 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-04 02:37:39,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 02:37:39" (1/1) ... [2023-05-04 02:37:39,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 02:37:39" (1/1) ... [2023-05-04 02:37:39,597 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 02:37:39" (1/1) ... [2023-05-04 02:37:39,598 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 02:37:39" (1/1) ... [2023-05-04 02:37:39,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 02:37:39" (1/1) ... [2023-05-04 02:37:39,618 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 02:37:39" (1/1) ... [2023-05-04 02:37:39,620 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 02:37:39" (1/1) ... [2023-05-04 02:37:39,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 02:37:39" (1/1) ... [2023-05-04 02:37:39,626 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-04 02:37:39,627 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-04 02:37:39,627 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-04 02:37:39,627 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-04 02:37:39,628 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 02:37:39" (1/1) ... [2023-05-04 02:37:39,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 02:37:39,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 02:37:39,658 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-05-04 02:37:39,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-05-04 02:37:39,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-05-04 02:37:39,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-05-04 02:37:39,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-05-04 02:37:39,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-05-04 02:37:39,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-05-04 02:37:39,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-05-04 02:37:39,710 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-05-04 02:37:39,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-05-04 02:37:39,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-05-04 02:37:39,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-05-04 02:37:39,710 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-05-04 02:37:39,711 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-05-04 02:37:39,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-05-04 02:37:39,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-04 02:37:39,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-04 02:37:39,712 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2023-05-04 02:37:39,877 INFO L235 CfgBuilder]: Building ICFG [2023-05-04 02:37:39,878 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-04 02:37:40,351 INFO L276 CfgBuilder]: Performing block encoding [2023-05-04 02:37:40,360 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-04 02:37:40,360 INFO L300 CfgBuilder]: Removed 23 assume(true) statements. [2023-05-04 02:37:40,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 02:37:40 BoogieIcfgContainer [2023-05-04 02:37:40,369 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-04 02:37:40,372 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-04 02:37:40,372 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-04 02:37:40,375 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-04 02:37:40,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.05 02:37:38" (1/3) ... [2023-05-04 02:37:40,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d8c7181 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 02:37:40, skipping insertion in model container [2023-05-04 02:37:40,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 02:37:39" (2/3) ... [2023-05-04 02:37:40,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d8c7181 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 02:37:40, skipping insertion in model container [2023-05-04 02:37:40,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 02:37:40" (3/3) ... [2023-05-04 02:37:40,378 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_94-alloc_region_racing.i [2023-05-04 02:37:40,385 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-04 02:37:40,394 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-04 02:37:40,395 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-05-04 02:37:40,395 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-04 02:37:40,510 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-05-04 02:37:40,594 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 02:37:40,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 02:37:40,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 02:37:40,597 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-05-04 02:37:40,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-05-04 02:37:40,642 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 02:37:40,671 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread1of1ForFork0 ======== [2023-05-04 02:37:40,677 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;@3c01398d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 02:37:40,677 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-04 02:37:45,195 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 02:37:45,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:37:45,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1747624246, now seen corresponding path program 1 times [2023-05-04 02:37:45,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:37:45,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775677880] [2023-05-04 02:37:45,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:37:45,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:37:45,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:37:45,605 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-05-04 02:37:45,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:37:45,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775677880] [2023-05-04 02:37:45,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775677880] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 02:37:45,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 02:37:45,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-05-04 02:37:45,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767340187] [2023-05-04 02:37:45,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 02:37:45,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-05-04 02:37:45,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:37:45,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-05-04 02:37:45,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-05-04 02:37:45,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:37:45,640 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:37:45,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 79.0) internal successors, (158), 2 states have internal predecessors, (158), 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) [2023-05-04 02:37:45,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:38:16,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:38:16,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-05-04 02:38:16,998 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 02:38:16,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:38:16,999 INFO L85 PathProgramCache]: Analyzing trace with hash 352681824, now seen corresponding path program 1 times [2023-05-04 02:38:16,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:38:16,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63383185] [2023-05-04 02:38:16,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:38:16,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:38:17,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:38:17,256 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 02:38:17,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:38:17,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63383185] [2023-05-04 02:38:17,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63383185] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 02:38:17,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549400256] [2023-05-04 02:38:17,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:38:17,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 02:38:17,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 02:38:17,260 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 02:38:17,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-05-04 02:38:17,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:38:17,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 4 conjunts are in the unsatisfiable core [2023-05-04 02:38:17,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 02:38:17,708 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 02:38:17,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 02:38:17,841 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 02:38:17,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [549400256] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 02:38:17,842 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 02:38:17,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-05-04 02:38:17,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751652725] [2023-05-04 02:38:17,843 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 02:38:17,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-05-04 02:38:17,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:38:17,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-05-04 02:38:17,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-05-04 02:38:17,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:38:17,847 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:38:17,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 21.0) internal successors, (210), 10 states have internal predecessors, (210), 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) [2023-05-04 02:38:17,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:38:17,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:38:20,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:38:20,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 02:38:20,222 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-05-04 02:38:20,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-05-04 02:38:20,397 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 02:38:20,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:38:20,398 INFO L85 PathProgramCache]: Analyzing trace with hash 580669085, now seen corresponding path program 1 times [2023-05-04 02:38:20,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:38:20,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777151913] [2023-05-04 02:38:20,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:38:20,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:38:20,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-05-04 02:38:20,609 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-05-04 02:38:20,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-05-04 02:38:20,731 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-05-04 02:38:20,731 INFO L359 BasicCegarLoop]: Counterexample is feasible [2023-05-04 02:38:20,733 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-05-04 02:38:20,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-05-04 02:38:20,749 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-05-04 02:38:20,751 INFO L307 ceAbstractionStarter]: Result for error location t_funThread1of1ForFork0 was UNSAFE (1/2) [2023-05-04 02:38:20,755 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-05-04 02:38:20,755 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-05-04 02:38:20,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.05 02:38:20 BasicIcfg [2023-05-04 02:38:20,834 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-05-04 02:38:20,834 INFO L158 Benchmark]: Toolchain (without parser) took 41989.81ms. Allocated memory was 215.0MB in the beginning and 260.0MB in the end (delta: 45.1MB). Free memory was 157.5MB in the beginning and 118.3MB in the end (delta: 39.2MB). Peak memory consumption was 85.6MB. Max. memory is 8.0GB. [2023-05-04 02:38:20,834 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 215.0MB. Free memory is still 177.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-05-04 02:38:20,835 INFO L158 Benchmark]: CACSL2BoogieTranslator took 683.09ms. Allocated memory was 215.0MB in the beginning and 260.0MB in the end (delta: 45.1MB). Free memory was 157.4MB in the beginning and 202.9MB in the end (delta: -45.5MB). Peak memory consumption was 13.4MB. Max. memory is 8.0GB. [2023-05-04 02:38:20,835 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.31ms. Allocated memory is still 260.0MB. Free memory was 202.9MB in the beginning and 199.6MB in the end (delta: 3.3MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-05-04 02:38:20,835 INFO L158 Benchmark]: Boogie Preprocessor took 42.29ms. Allocated memory is still 260.0MB. Free memory was 199.6MB in the beginning and 197.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-05-04 02:38:20,836 INFO L158 Benchmark]: RCFGBuilder took 742.15ms. Allocated memory is still 260.0MB. Free memory was 197.3MB in the beginning and 172.7MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2023-05-04 02:38:20,836 INFO L158 Benchmark]: TraceAbstraction took 40461.96ms. Allocated memory is still 260.0MB. Free memory was 171.3MB in the beginning and 118.3MB in the end (delta: 52.9MB). Peak memory consumption was 54.3MB. Max. memory is 8.0GB. [2023-05-04 02:38:20,838 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 215.0MB. Free memory is still 177.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 683.09ms. Allocated memory was 215.0MB in the beginning and 260.0MB in the end (delta: 45.1MB). Free memory was 157.4MB in the beginning and 202.9MB in the end (delta: -45.5MB). Peak memory consumption was 13.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 52.31ms. Allocated memory is still 260.0MB. Free memory was 202.9MB in the beginning and 199.6MB in the end (delta: 3.3MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 42.29ms. Allocated memory is still 260.0MB. Free memory was 199.6MB in the beginning and 197.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 742.15ms. Allocated memory is still 260.0MB. Free memory was 197.3MB in the beginning and 172.7MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * TraceAbstraction took 40461.96ms. Allocated memory is still 260.0MB. Free memory was 171.3MB in the beginning and 118.3MB in the end (delta: 52.9MB). Peak memory consumption was 54.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 28753, independent: 27108, independent conditional: 3903, independent unconditional: 23205, dependent: 1595, dependent conditional: 1452, dependent unconditional: 143, unknown: 50, unknown conditional: 18, unknown unconditional: 32] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 27374, independent: 27108, independent conditional: 3903, independent unconditional: 23205, dependent: 216, dependent conditional: 73, dependent unconditional: 143, unknown: 50, unknown conditional: 18, unknown unconditional: 32] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 27374, independent: 27108, independent conditional: 3903, independent unconditional: 23205, dependent: 216, dependent conditional: 73, dependent unconditional: 143, unknown: 50, unknown conditional: 18, unknown unconditional: 32] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 27464, independent: 27108, independent conditional: 0, independent unconditional: 27108, dependent: 288, dependent conditional: 72, dependent unconditional: 216, unknown: 68, unknown conditional: 18, unknown unconditional: 50] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 27464, independent: 27108, independent conditional: 0, independent unconditional: 27108, dependent: 288, dependent conditional: 2, dependent unconditional: 286, unknown: 68, unknown conditional: 2, unknown unconditional: 66] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 27464, independent: 27108, independent conditional: 0, independent unconditional: 27108, dependent: 288, dependent conditional: 2, dependent unconditional: 286, unknown: 68, unknown conditional: 2, unknown unconditional: 66] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12953, independent: 12774, independent conditional: 0, independent unconditional: 12774, dependent: 145, dependent conditional: 2, dependent unconditional: 143, unknown: 34, unknown conditional: 2, unknown unconditional: 32] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 12953, independent: 12702, independent conditional: 0, independent unconditional: 12702, dependent: 251, dependent conditional: 0, dependent unconditional: 251, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 251, independent: 72, independent conditional: 0, independent unconditional: 72, dependent: 145, dependent conditional: 2, dependent unconditional: 143, unknown: 34, unknown conditional: 2, unknown unconditional: 32] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 251, independent: 72, independent conditional: 0, independent unconditional: 72, dependent: 145, dependent conditional: 2, dependent unconditional: 143, unknown: 34, unknown conditional: 2, unknown unconditional: 32] , SemanticIndependenceRelation.Query Time [ms]: [ total: 37455, independent: 254, independent conditional: 0, independent unconditional: 254, dependent: 1120, dependent conditional: 50, dependent unconditional: 1070, unknown: 36081, unknown conditional: 2166, unknown unconditional: 33915] , Protected Queries: 0 ], Cache Queries: [ total: 27464, independent: 14334, independent conditional: 0, independent unconditional: 14334, dependent: 143, dependent conditional: 0, dependent unconditional: 143, unknown: 12987, unknown conditional: 4, unknown unconditional: 12983] , Statistics on independence cache: Total cache size (in pairs): 12919, Positive cache size: 12774, Positive conditional cache size: 0, Positive unconditional cache size: 12774, Negative cache size: 145, Negative conditional cache size: 2, Negative unconditional cache size: 143, Unknown cache size: 34, Unknown conditional cache size: 2, Unknown unconditional cache size: 32, Eliminated conditions: 86, Maximal queried relation: 1, Independence queries for same thread: 1379 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 35.5s, Number of persistent set computation: 2152, Number of trivial persistent sets: 1923, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 23380, independent: 23205, independent conditional: 0, independent unconditional: 23205, dependent: 143, dependent conditional: 0, dependent unconditional: 143, unknown: 32, unknown conditional: 0, unknown unconditional: 32] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 28753, independent: 27108, independent conditional: 3903, independent unconditional: 23205, dependent: 1595, dependent conditional: 1452, dependent unconditional: 143, unknown: 50, unknown conditional: 18, unknown unconditional: 32] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 27374, independent: 27108, independent conditional: 3903, independent unconditional: 23205, dependent: 216, dependent conditional: 73, dependent unconditional: 143, unknown: 50, unknown conditional: 18, unknown unconditional: 32] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 27374, independent: 27108, independent conditional: 3903, independent unconditional: 23205, dependent: 216, dependent conditional: 73, dependent unconditional: 143, unknown: 50, unknown conditional: 18, unknown unconditional: 32] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 27464, independent: 27108, independent conditional: 0, independent unconditional: 27108, dependent: 288, dependent conditional: 72, dependent unconditional: 216, unknown: 68, unknown conditional: 18, unknown unconditional: 50] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 27464, independent: 27108, independent conditional: 0, independent unconditional: 27108, dependent: 288, dependent conditional: 2, dependent unconditional: 286, unknown: 68, unknown conditional: 2, unknown unconditional: 66] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 27464, independent: 27108, independent conditional: 0, independent unconditional: 27108, dependent: 288, dependent conditional: 2, dependent unconditional: 286, unknown: 68, unknown conditional: 2, unknown unconditional: 66] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12953, independent: 12774, independent conditional: 0, independent unconditional: 12774, dependent: 145, dependent conditional: 2, dependent unconditional: 143, unknown: 34, unknown conditional: 2, unknown unconditional: 32] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 12953, independent: 12702, independent conditional: 0, independent unconditional: 12702, dependent: 251, dependent conditional: 0, dependent unconditional: 251, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 251, independent: 72, independent conditional: 0, independent unconditional: 72, dependent: 145, dependent conditional: 2, dependent unconditional: 143, unknown: 34, unknown conditional: 2, unknown unconditional: 32] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 251, independent: 72, independent conditional: 0, independent unconditional: 72, dependent: 145, dependent conditional: 2, dependent unconditional: 143, unknown: 34, unknown conditional: 2, unknown unconditional: 32] , SemanticIndependenceRelation.Query Time [ms]: [ total: 37455, independent: 254, independent conditional: 0, independent unconditional: 254, dependent: 1120, dependent conditional: 50, dependent unconditional: 1070, unknown: 36081, unknown conditional: 2166, unknown unconditional: 33915] , Protected Queries: 0 ], Cache Queries: [ total: 27464, independent: 14334, independent conditional: 0, independent unconditional: 14334, dependent: 143, dependent conditional: 0, dependent unconditional: 143, unknown: 12987, unknown conditional: 4, unknown unconditional: 12983] , Statistics on independence cache: Total cache size (in pairs): 12919, Positive cache size: 12774, Positive conditional cache size: 0, Positive unconditional cache size: 12774, Negative cache size: 145, Negative conditional cache size: 2, Negative unconditional cache size: 143, Unknown cache size: 34, Unknown conditional cache size: 2, Unknown unconditional cache size: 32, Eliminated conditions: 86, Maximal queried relation: 1, Independence queries for same thread: 1379 - CounterExampleResult [Line: 1235]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1241-L1244] 0 struct s { int datum; struct s *next; } *A; VAL [A={3:0}] [L1240] 0 pthread_mutex_t __global_lock = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [__global_lock={4:0}, A={3:0}] [L1253] 0 pthread_mutex_t A_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [__global_lock={4:0}, A={3:0}, A_mutex={5:0}] [L1254] 0 pthread_mutex_t B_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [__global_lock={4:0}, A={3:0}, A_mutex={5:0}, B_mutex={6:0}] [L1267] 0 struct s *p; VAL [__global_lock={4:0}, A={3:0}, A_mutex={5:0}, B_mutex={6:0}] [L1268] 0 A = malloc(sizeof(struct s)) VAL [__global_lock={4:0}, A={3:0}, A_mutex={5:0}, B_mutex={6:0}, malloc(sizeof(struct s))={9:0}] [L1269] EXPR 0 \read(*A) VAL [\read(*A)={9:0}, __global_lock={4:0}, A={3:0}, A_mutex={5:0}, B_mutex={6:0}] [L1269] CALL 0 init(A,3) [L1246] 0 p -> datum = x VAL [\old(x)=3, __global_lock={4:0}, A={3:0}, A_mutex={5:0}, B_mutex={6:0}, p={9:0}, p={9:0}, x=3] [L1247] 0 p -> next = ((void *)0) VAL [\old(x)=3, __global_lock={4:0}, A={3:0}, A_mutex={5:0}, B_mutex={6:0}, p={9:0}, p={9:0}, x=3] [L1269] RET 0 init(A,3) [L1270] 0 pthread_t t_ids[10000]; VAL [__global_lock={4:0}, A={3:0}, A_mutex={5:0}, B_mutex={6:0}, t_ids={15:0}] [L1270] 0 int i=0; VAL [__global_lock={4:0}, A={3:0}, A_mutex={5:0}, B_mutex={6:0}, i=0, t_ids={15:0}] [L1270] COND TRUE 0 i<10000 VAL [__global_lock={4:0}, A={3:0}, A_mutex={5:0}, B_mutex={6:0}, i=0, t_ids={15:0}] [L1270] FCALL, FORK 0 pthread_create(&t_ids[i], ((void *)0), t_fun, ((void *)0)) VAL [__global_lock={4:0}, A={3:0}, A_mutex={5:0}, B_mutex={6:0}, i=0, pthread_create(&t_ids[i], ((void *)0), t_fun, ((void *)0))=10, t_ids={15:0}] [L1256] 1 struct s *p = malloc(sizeof(struct s)); VAL [__global_lock={4:0}, A={3:0}, A_mutex={5:0}, arg={0:0}, arg={0:0}, B_mutex={6:0}, malloc(sizeof(struct s))={-2:0}, p={-2:0}] [L1257] CALL 1 init(p,7) [L1246] 1 p -> datum = x VAL [\old(x)=7, \old(x)=3, __global_lock={4:0}, A={3:0}, A_mutex={5:0}, B_mutex={6:0}, p={-2:0}, p={-2:0}, p={9:0}, p={9:0}, x=3, x=7] [L1247] 1 p -> next = ((void *)0) VAL [\old(x)=7, \old(x)=3, __global_lock={4:0}, A={3:0}, A_mutex={5:0}, B_mutex={6:0}, p={-2:0}, p={9:0}, p={9:0}, p={-2:0}, x=3, x=7] [L1257] RET 1 init(p,7) [L1259] CALL 1 insert(p, &A) [L1250] EXPR 1 \read(**list) VAL [\read(**list)={9:0}, __global_lock={4:0}, A={3:0}, A_mutex={5:0}, B_mutex={6:0}, list={3:0}, list={3:0}, p={-2:0}, p={-2:0}] [L1250] 1 p->next = *list VAL [\read(**list)={9:0}, __global_lock={4:0}, A={3:0}, A_mutex={5:0}, B_mutex={6:0}, list={3:0}, list={3:0}, p={-2:0}, p={-2:0}] [L1251] 1 *list = p VAL [__global_lock={4:0}, A={3:0}, A_mutex={5:0}, B_mutex={6:0}, list={3:0}, list={3:0}, p={-2:0}, p={-2:0}] [L1259] RET 1 insert(p, &A) [L1270] 0 i++ VAL [__global_lock={4:0}, A={3:0}, A_mutex={5:0}, B_mutex={6:0}, i=1, t_ids={15:0}] [L1262] COND FALSE 1 !(__VERIFIER_nondet_int()) VAL [__global_lock={4:0}, __VERIFIER_nondet_int()=0, A={3:0}, A_mutex={5:0}, arg={0:0}, arg={0:0}, B_mutex={6:0}, p={-2:0}] [L1270] COND TRUE 0 i<10000 VAL [__global_lock={4:0}, A={3:0}, A_mutex={5:0}, B_mutex={6:0}, i=1, t_ids={15:0}] [L1270] FCALL, FORK 0 pthread_create(&t_ids[i], ((void *)0), t_fun, ((void *)0)) VAL [__global_lock={4:0}, A={3:0}, A_mutex={5:0}, B_mutex={6:0}, i=1, pthread_create(&t_ids[i], ((void *)0), t_fun, ((void *)0))=11, t_ids={15:0}] [L1262] EXPR 1 p->datum VAL [__global_lock={4:0}, A={3:0}, A_mutex={5:0}, arg={0:0}, arg={0:0}, B_mutex={6:0}, p={-2:0}, p->datum=7] [L1262] CALL 1 __VERIFIER_assert((p->datum) == 0) [L1235] COND TRUE 1 !(cond) VAL [\old(cond)=0, __global_lock={4:0}, A={3:0}, A_mutex={5:0}, B_mutex={6:0}, cond=0] [L1235] 1 reach_error() VAL [\old(cond)=0, __global_lock={4:0}, A={3:0}, A_mutex={5:0}, B_mutex={6:0}, cond=0] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: t_funThread1of1ForFork0 with 1 thread instances CFG has 3 procedures, 297 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 40.1s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 38.2s, 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: 8, 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: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 526 NumberOfCodeBlocks, 526 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 547 ConstructedInterpolants, 0 QuantifiedInterpolants, 793 SizeOfPredicates, 2 NumberOfNonLiveVariables, 497 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 4/7 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-05-04 02:38:20,879 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2023-05-04 02:38:21,077 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...