/usr/bin/java -Xmx7000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.prune.known.deadend.states.from.previous.iterations false -s ../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf --traceabstraction.cegar.restart.behaviour ONLY_ONE_CEGAR -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-1_3-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dynamic-abstractions-e2ee32c-m [2023-09-07 22:37:21,155 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-09-07 22:37:21,225 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2023-09-07 22:37:21,231 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-09-07 22:37:21,231 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-09-07 22:37:21,232 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-09-07 22:37:21,265 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-07 22:37:21,265 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-07 22:37:21,266 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-07 22:37:21,269 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-07 22:37:21,270 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-07 22:37:21,270 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-07 22:37:21,271 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-09-07 22:37:21,272 INFO L153 SettingsManager]: * Use SBE=true [2023-09-07 22:37:21,272 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-07 22:37:21,272 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-07 22:37:21,273 INFO L153 SettingsManager]: * sizeof long=4 [2023-09-07 22:37:21,273 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-07 22:37:21,273 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-09-07 22:37:21,273 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-09-07 22:37:21,273 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-07 22:37:21,277 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-07 22:37:21,277 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-07 22:37:21,277 INFO L153 SettingsManager]: * sizeof long double=12 [2023-09-07 22:37:21,277 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-09-07 22:37:21,277 INFO L153 SettingsManager]: * Use constant arrays=true [2023-09-07 22:37:21,278 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-07 22:37:21,278 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-07 22:37:21,278 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-09-07 22:37:21,278 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-07 22:37:21,279 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-07 22:37:21,279 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-07 22:37:21,280 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-07 22:37:21,280 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2023-09-07 22:37:21,280 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-07 22:37:21,280 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-07 22:37:21,280 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-07 22:37:21,280 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-09-07 22:37:21,280 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-09-07 22:37:21,281 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-07 22:37:21,281 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2023-09-07 22:37:21,281 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONLY_ONE_CEGAR [2023-09-07 22:37:21,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-07 22:37:21,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-07 22:37:21,469 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-07 22:37:21,470 INFO L270 PluginConnector]: Initializing CDTParser... [2023-09-07 22:37:21,470 INFO L274 PluginConnector]: CDTParser initialized [2023-09-07 22:37:21,471 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_3-join.i [2023-09-07 22:37:22,613 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-09-07 22:37:22,878 INFO L384 CDTParser]: Found 1 translation units. [2023-09-07 22:37:22,879 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i [2023-09-07 22:37:22,919 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa5aebc6e/9eaaf103a61b4fc3bf833d4e77cbd784/FLAG18de6365b [2023-09-07 22:37:22,935 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa5aebc6e/9eaaf103a61b4fc3bf833d4e77cbd784 [2023-09-07 22:37:22,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-07 22:37:22,941 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-09-07 22:37:22,944 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-07 22:37:22,944 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-07 22:37:22,948 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-07 22:37:22,948 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 10:37:22" (1/1) ... [2023-09-07 22:37:22,949 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bd2ccd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:37:22, skipping insertion in model container [2023-09-07 22:37:22,949 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 10:37:22" (1/1) ... [2023-09-07 22:37:23,006 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-09-07 22:37:23,510 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i[76153,76166] [2023-09-07 22:37:23,531 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-07 22:37:23,541 INFO L202 MainTranslator]: Completed pre-run [2023-09-07 22:37:23,554 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [237] [2023-09-07 22:37:23,556 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [237] [2023-09-07 22:37:23,563 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [729] [2023-09-07 22:37:23,577 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i[76153,76166] [2023-09-07 22:37:23,584 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-07 22:37:23,743 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-07 22:37:23,744 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-07 22:37:23,749 INFO L206 MainTranslator]: Completed translation [2023-09-07 22:37:23,749 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:37:23 WrapperNode [2023-09-07 22:37:23,749 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-07 22:37:23,750 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-07 22:37:23,750 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-07 22:37:23,750 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-07 22:37:23,756 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:37:23" (1/1) ... [2023-09-07 22:37:23,777 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:37:23" (1/1) ... [2023-09-07 22:37:23,797 INFO L138 Inliner]: procedures = 482, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 90 [2023-09-07 22:37:23,798 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-07 22:37:23,798 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-07 22:37:23,798 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-07 22:37:23,798 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-09-07 22:37:23,805 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:37:23" (1/1) ... [2023-09-07 22:37:23,805 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:37:23" (1/1) ... [2023-09-07 22:37:23,809 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:37:23" (1/1) ... [2023-09-07 22:37:23,809 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:37:23" (1/1) ... [2023-09-07 22:37:23,824 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:37:23" (1/1) ... [2023-09-07 22:37:23,827 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:37:23" (1/1) ... [2023-09-07 22:37:23,831 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:37:23" (1/1) ... [2023-09-07 22:37:23,832 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:37:23" (1/1) ... [2023-09-07 22:37:23,844 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-07 22:37:23,845 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-07 22:37:23,845 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-09-07 22:37:23,845 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-09-07 22:37:23,846 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:37:23" (1/1) ... [2023-09-07 22:37:23,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-07 22:37:23,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 22:37:23,877 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-09-07 22:37:23,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-09-07 22:37:23,907 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-07 22:37:23,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-07 22:37:23,907 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-07 22:37:23,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-07 22:37:23,908 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-07 22:37:23,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-07 22:37:23,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-09-07 22:37:23,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-07 22:37:23,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-07 22:37:23,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-07 22:37:23,908 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-09-07 22:37:23,908 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-09-07 22:37:23,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-07 22:37:23,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-07 22:37:23,910 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-07 22:37:24,103 INFO L236 CfgBuilder]: Building ICFG [2023-09-07 22:37:24,105 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-07 22:37:24,237 INFO L277 CfgBuilder]: Performing block encoding [2023-09-07 22:37:24,262 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-07 22:37:24,262 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-07 22:37:24,264 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 10:37:24 BoogieIcfgContainer [2023-09-07 22:37:24,264 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-07 22:37:24,266 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-07 22:37:24,266 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-09-07 22:37:24,274 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-09-07 22:37:24,274 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 10:37:22" (1/3) ... [2023-09-07 22:37:24,275 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30efd8c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 10:37:24, skipping insertion in model container [2023-09-07 22:37:24,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:37:23" (2/3) ... [2023-09-07 22:37:24,276 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30efd8c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 10:37:24, skipping insertion in model container [2023-09-07 22:37:24,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 10:37:24" (3/3) ... [2023-09-07 22:37:24,277 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_3-join.i [2023-09-07 22:37:24,285 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-07 22:37:24,293 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-07 22:37:24,293 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-09-07 22:37:24,293 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-07 22:37:24,362 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-09-07 22:37:24,405 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 22:37:24,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-09-07 22:37:24,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 22:37:24,411 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-09-07 22:37:24,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-09-07 22:37:24,449 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-09-07 22:37:24,455 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-07 22:37:24,460 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;@646bc911, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 22:37:24,460 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-09-07 22:37:24,478 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-09-07 22:37:24,481 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 22:37:24,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1534558595, now seen corresponding path program 1 times [2023-09-07 22:37:24,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 22:37:24,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741129730] [2023-09-07 22:37:24,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 22:37:24,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 22:37:24,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 22:37:24,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 22:37:24,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 22:37:24,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741129730] [2023-09-07 22:37:24,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741129730] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 22:37:24,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 22:37:24,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-09-07 22:37:24,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709015176] [2023-09-07 22:37:24,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 22:37:24,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-07 22:37:24,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 22:37:25,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-07 22:37:25,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-09-07 22:37:25,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 22:37:25,016 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 22:37:25,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 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) [2023-09-07 22:37:25,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 22:37:25,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-07 22:37:25,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-07 22:37:25,185 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-09-07 22:37:25,186 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 22:37:25,186 INFO L85 PathProgramCache]: Analyzing trace with hash 322109410, now seen corresponding path program 1 times [2023-09-07 22:37:25,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 22:37:25,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187766503] [2023-09-07 22:37:25,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 22:37:25,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 22:37:25,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 22:37:25,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 22:37:25,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 22:37:25,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187766503] [2023-09-07 22:37:25,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187766503] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 22:37:25,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 22:37:25,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-07 22:37:25,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941714003] [2023-09-07 22:37:25,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 22:37:25,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-07 22:37:25,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 22:37:25,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-07 22:37:25,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-07 22:37:25,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 22:37:25,417 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 22:37:25,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 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) [2023-09-07 22:37:25,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-09-07 22:37:25,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 22:37:25,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-07 22:37:25,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 22:37:25,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-07 22:37:25,565 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-09-07 22:37:25,566 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 22:37:25,566 INFO L85 PathProgramCache]: Analyzing trace with hash -2001894183, now seen corresponding path program 1 times [2023-09-07 22:37:25,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 22:37:25,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321479502] [2023-09-07 22:37:25,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 22:37:25,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 22:37:25,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 22:37:25,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 22:37:25,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 22:37:25,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321479502] [2023-09-07 22:37:25,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321479502] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 22:37:25,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 22:37:25,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-09-07 22:37:25,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202111948] [2023-09-07 22:37:25,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 22:37:25,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-07 22:37:25,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 22:37:25,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-07 22:37:25,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-09-07 22:37:25,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 22:37:25,781 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 22:37:25,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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) [2023-09-07 22:37:25,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-09-07 22:37:25,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 22:37:25,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 22:37:25,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-07 22:37:25,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 22:37:25,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-07 22:37:25,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-07 22:37:25,959 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-09-07 22:37:25,962 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 22:37:25,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1108715616, now seen corresponding path program 1 times [2023-09-07 22:37:25,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 22:37:25,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273894737] [2023-09-07 22:37:25,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 22:37:25,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 22:37:25,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-07 22:37:25,999 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-07 22:37:26,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-07 22:37:26,056 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-07 22:37:26,056 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-07 22:37:26,060 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-09-07 22:37:26,061 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-09-07 22:37:26,062 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2023-09-07 22:37:26,063 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2023-09-07 22:37:26,063 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-09-07 22:37:26,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-07 22:37:26,066 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-09-07 22:37:26,070 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-07 22:37:26,070 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-07 22:37:26,117 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.09 10:37:26 BasicIcfg [2023-09-07 22:37:26,117 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-07 22:37:26,122 INFO L158 Benchmark]: Toolchain (without parser) took 3179.25ms. Allocated memory is still 269.5MB. Free memory was 221.9MB in the beginning and 135.6MB in the end (delta: 86.4MB). Peak memory consumption was 87.2MB. Max. memory is 7.0GB. [2023-09-07 22:37:26,124 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 156.2MB. Free memory is still 109.5MB. There was no memory consumed. Max. memory is 7.0GB. [2023-09-07 22:37:26,125 INFO L158 Benchmark]: CACSL2BoogieTranslator took 805.77ms. Allocated memory is still 269.5MB. Free memory was 221.6MB in the beginning and 227.3MB in the end (delta: -5.7MB). Peak memory consumption was 55.6MB. Max. memory is 7.0GB. [2023-09-07 22:37:26,127 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.68ms. Allocated memory is still 269.5MB. Free memory was 227.3MB in the beginning and 224.2MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 7.0GB. [2023-09-07 22:37:26,128 INFO L158 Benchmark]: Boogie Preprocessor took 46.42ms. Allocated memory is still 269.5MB. Free memory was 224.2MB in the beginning and 221.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 7.0GB. [2023-09-07 22:37:26,128 INFO L158 Benchmark]: RCFGBuilder took 419.26ms. Allocated memory is still 269.5MB. Free memory was 221.0MB in the beginning and 200.1MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 7.0GB. [2023-09-07 22:37:26,128 INFO L158 Benchmark]: TraceAbstraction took 1853.61ms. Allocated memory is still 269.5MB. Free memory was 199.5MB in the beginning and 135.6MB in the end (delta: 64.0MB). Peak memory consumption was 65.0MB. Max. memory is 7.0GB. [2023-09-07 22:37:26,130 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 156.2MB. Free memory is still 109.5MB. There was no memory consumed. Max. memory is 7.0GB. * CACSL2BoogieTranslator took 805.77ms. Allocated memory is still 269.5MB. Free memory was 221.6MB in the beginning and 227.3MB in the end (delta: -5.7MB). Peak memory consumption was 55.6MB. Max. memory is 7.0GB. * Boogie Procedure Inliner took 47.68ms. Allocated memory is still 269.5MB. Free memory was 227.3MB in the beginning and 224.2MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 7.0GB. * Boogie Preprocessor took 46.42ms. Allocated memory is still 269.5MB. Free memory was 224.2MB in the beginning and 221.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 7.0GB. * RCFGBuilder took 419.26ms. Allocated memory is still 269.5MB. Free memory was 221.0MB in the beginning and 200.1MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 7.0GB. * TraceAbstraction took 1853.61ms. Allocated memory is still 269.5MB. Free memory was 199.5MB in the beginning and 135.6MB in the end (delta: 64.0MB). Peak memory consumption was 65.0MB. Max. memory is 7.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 237]: Unsoundness Warning unspecified type, defaulting to int C: short [237] - GenericResultAtLocation [Line: 237]: Unsoundness Warning unspecified type, defaulting to int C: short [237] - GenericResultAtLocation [Line: 729]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [729] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 107, independent: 97, independent conditional: 97, independent unconditional: 0, dependent: 10, dependent conditional: 10, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 99, independent: 97, independent conditional: 97, independent unconditional: 0, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 99, independent: 97, independent conditional: 97, independent unconditional: 0, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 105, independent: 97, independent conditional: 0, independent unconditional: 97, dependent: 8, dependent conditional: 6, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 105, independent: 97, independent conditional: 0, independent unconditional: 97, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 105, independent: 97, independent conditional: 0, independent unconditional: 97, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 99, independent: 97, independent conditional: 0, independent unconditional: 97, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 99, independent: 97, independent conditional: 0, independent unconditional: 97, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 105, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 99, unknown conditional: 0, unknown unconditional: 99] , Statistics on independence cache: Total cache size (in pairs): 99, Positive cache size: 97, Positive conditional cache size: 0, Positive unconditional cache size: 97, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 6, Maximal queried relation: 3, Independence queries for same thread: 8 - StatisticsResult: Proof manager benchmarks IrresponsibleProofs: 0, RedundantProofs: 0, ProvenStates: 6 - CounterExampleResult [Line: 1695]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1696] 0 pthread_t t1; VAL [t1={3:0}] [L1697] 0 pthread_mutex_t mutex; VAL [mutex={4:0}, t1={3:0}] [L1698] 0 int pdev; VAL [mutex={4:0}, pdev=0, t1={3:0}] [L1734] CALL, EXPR 0 module_init() [L1709] 0 pdev = 1 [L1710] CALL 0 ldv_assert(pdev==1) [L1695] COND FALSE 0 !(!expression) VAL [\old(expression)=1, expression=1, mutex={4:0}, pdev=1, t1={3:0}] [L1710] RET 0 ldv_assert(pdev==1) [L1711] COND TRUE 0 __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=1, mutex={4:0}, pdev=1, t1={3:0}] [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={4:0}, pdev=1, pthread_create(&t1, ((void *)0), thread1, ((void *)0))=-1, t1={3:0}] [L1713] 0 return 0; VAL [\result=0, arg={0:0}, mutex={4:0}, pdev=1, t1={3:0}] [L1734] RET, EXPR 0 module_init() [L1734] COND FALSE 0 !(module_init()!=0) VAL [arg={0:0}, module_init()=0, mutex={4:0}, pdev=1, t1={3:0}] [L1735] CALL 0 module_exit() [L1721] 0 void *status; VAL [arg={0:0}, mutex={4:0}, pdev=1, status={5:0}, t1={3:0}] [L1723] 0 pdev = 4 VAL [arg={0:0}, mutex={4:0}, pdev=4, status={5:0}, t1={3:0}] [L1702] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=6, t1={3:0}] [L1726] CALL 0 ldv_assert(pdev==4) [L1695] COND TRUE 0 !expression [L1695] 0 reach_error() VAL [\old(expression)=0, arg={0:0}, arg={0:0}, expression=0, mutex={4:0}, pdev=6, t1={3:0}] - UnprovableResult [Line: 1695]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1712]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 100 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.5s, 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: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 138 ConstructedInterpolants, 0 QuantifiedInterpolants, 162 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-09-07 22:37:26,148 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2023-09-07 22:37:26,353 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...