/usr/lib/jvm/java-1.11.0-openjdk-amd64/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/NewStatesSleepPersistent.epf --traceabstraction.dfs.order.used.in.por PSEUDO_LOCKSTEP -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_09-ptrmunge_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.datarace-free-lbe-02cf818-m [2023-11-17 17:26:37,610 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 17:26:37,689 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistent.epf [2023-11-17 17:26:37,692 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-17 17:26:37,692 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-17 17:26:37,730 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 17:26:37,731 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-17 17:26:37,731 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-17 17:26:37,732 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 17:26:37,735 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 17:26:37,736 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 17:26:37,736 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 17:26:37,737 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 17:26:37,738 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 17:26:37,738 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 17:26:37,738 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 17:26:37,739 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 17:26:37,739 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 17:26:37,739 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 17:26:37,739 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 17:26:37,739 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 17:26:37,740 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 17:26:37,740 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 17:26:37,740 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 17:26:37,740 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 17:26:37,741 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 17:26:37,741 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 17:26:37,741 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-17 17:26:37,741 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 17:26:37,742 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 17:26:37,743 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 17:26:37,743 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 17:26:37,743 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 17:26:37,743 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 17:26:37,743 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 17:26:37,743 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-17 17:26:37,743 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-17 17:26:37,744 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-17 17:26:37,744 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-17 17:26:37,744 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES [2023-11-17 17:26:37,744 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> PSEUDO_LOCKSTEP [2023-11-17 17:26:37,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 17:26:37,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 17:26:37,988 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 17:26:37,990 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 17:26:37,990 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 17:26:37,991 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2023-11-17 17:26:39,119 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 17:26:39,392 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 17:26:39,394 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2023-11-17 17:26:39,413 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/608634496/8b153c1e94764db889aaaeb995f20b81/FLAG955ba5bf8 [2023-11-17 17:26:39,431 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/608634496/8b153c1e94764db889aaaeb995f20b81 [2023-11-17 17:26:39,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 17:26:39,434 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-17 17:26:39,435 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 17:26:39,435 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 17:26:39,439 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 17:26:39,439 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 05:26:39" (1/1) ... [2023-11-17 17:26:39,440 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b894dfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:26:39, skipping insertion in model container [2023-11-17 17:26:39,440 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 05:26:39" (1/1) ... [2023-11-17 17:26:39,477 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 17:26:39,759 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_09-ptrmunge_racing.i[30176,30189] [2023-11-17 17:26:39,783 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 17:26:39,797 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 17:26:39,824 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_09-ptrmunge_racing.i[30176,30189] [2023-11-17 17:26:39,832 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 17:26:39,867 INFO L206 MainTranslator]: Completed translation [2023-11-17 17:26:39,867 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:26:39 WrapperNode [2023-11-17 17:26:39,867 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 17:26:39,868 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 17:26:39,868 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 17:26:39,868 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 17:26:39,874 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:26:39" (1/1) ... [2023-11-17 17:26:39,887 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:26:39" (1/1) ... [2023-11-17 17:26:39,918 INFO L138 Inliner]: procedures = 173, calls = 54, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 245 [2023-11-17 17:26:39,918 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 17:26:39,919 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 17:26:39,919 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 17:26:39,919 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 17:26:39,926 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:26:39" (1/1) ... [2023-11-17 17:26:39,926 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:26:39" (1/1) ... [2023-11-17 17:26:39,929 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:26:39" (1/1) ... [2023-11-17 17:26:39,929 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:26:39" (1/1) ... [2023-11-17 17:26:39,941 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:26:39" (1/1) ... [2023-11-17 17:26:39,945 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:26:39" (1/1) ... [2023-11-17 17:26:39,947 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:26:39" (1/1) ... [2023-11-17 17:26:39,949 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:26:39" (1/1) ... [2023-11-17 17:26:39,968 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 17:26:39,969 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 17:26:39,969 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 17:26:39,969 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 17:26:39,970 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:26:39" (1/1) ... [2023-11-17 17:26:39,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 17:26:39,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 17:26:40,006 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) [2023-11-17 17:26:40,029 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 [2023-11-17 17:26:40,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-17 17:26:40,039 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-11-17 17:26:40,039 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-11-17 17:26:40,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 17:26:40,039 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-17 17:26:40,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 17:26:40,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 17:26:40,039 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-11-17 17:26:40,039 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-11-17 17:26:40,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 17:26:40,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 17:26:40,041 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-17 17:26:40,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 17:26:40,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 17:26:40,043 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-17 17:26:40,169 INFO L239 CfgBuilder]: Building ICFG [2023-11-17 17:26:40,171 INFO L265 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 17:26:40,558 INFO L280 CfgBuilder]: Performing block encoding [2023-11-17 17:26:40,601 INFO L302 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 17:26:40,601 INFO L307 CfgBuilder]: Removed 24 assume(true) statements. [2023-11-17 17:26:40,602 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 05:26:40 BoogieIcfgContainer [2023-11-17 17:26:40,603 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 17:26:40,604 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 17:26:40,605 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 17:26:40,607 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 17:26:40,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 05:26:39" (1/3) ... [2023-11-17 17:26:40,608 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2695984a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 05:26:40, skipping insertion in model container [2023-11-17 17:26:40,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:26:39" (2/3) ... [2023-11-17 17:26:40,608 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2695984a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 05:26:40, skipping insertion in model container [2023-11-17 17:26:40,609 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 05:26:40" (3/3) ... [2023-11-17 17:26:40,610 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_09-ptrmunge_racing.i [2023-11-17 17:26:40,616 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-17 17:26:40,623 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 17:26:40,623 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-17 17:26:40,623 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 17:26:40,696 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-17 17:26:40,740 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 17:26:40,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-17 17:26:40,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 17:26:40,748 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) [2023-11-17 17:26:40,749 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 [2023-11-17 17:26:40,777 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-17 17:26:40,788 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t2_funThread1of1ForFork1 ======== [2023-11-17 17:26:40,794 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=LoopHeads, 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;@71ac6959, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 17:26:40,794 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-17 17:26:41,639 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-17 17:26:41,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 17:26:41,644 INFO L85 PathProgramCache]: Analyzing trace with hash -2145077034, now seen corresponding path program 1 times [2023-11-17 17:26:41,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 17:26:41,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727436121] [2023-11-17 17:26:41,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 17:26:41,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 17:26:41,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 17:26:42,215 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2023-11-17 17:26:42,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 17:26:42,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727436121] [2023-11-17 17:26:42,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727436121] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 17:26:42,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806062218] [2023-11-17 17:26:42,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 17:26:42,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 17:26:42,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 17:26:42,259 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) [2023-11-17 17:26:42,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-17 17:26:42,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 17:26:42,386 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-17 17:26:42,396 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 17:26:42,421 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-11-17 17:26:42,422 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-17 17:26:42,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1806062218] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 17:26:42,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-17 17:26:42,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2023-11-17 17:26:42,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127262529] [2023-11-17 17:26:42,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 17:26:42,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-17 17:26:42,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 17:26:42,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-17 17:26:42,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-17 17:26:42,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 17:26:42,454 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 17:26:42,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 52.5) internal successors, (105), 2 states have internal predecessors, (105), 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) [2023-11-17 17:26:42,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 17:26:44,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 17:26:44,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-17 17:26:44,635 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,SelfDestructingSolverStorable0 [2023-11-17 17:26:44,636 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-17 17:26:44,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 17:26:44,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1490633358, now seen corresponding path program 1 times [2023-11-17 17:26:44,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 17:26:44,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499320975] [2023-11-17 17:26:44,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 17:26:44,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 17:26:44,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 17:26:44,789 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-17 17:26:44,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 17:26:44,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499320975] [2023-11-17 17:26:44,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499320975] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 17:26:44,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1203395841] [2023-11-17 17:26:44,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 17:26:44,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 17:26:44,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 17:26:44,792 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 17:26:44,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-17 17:26:44,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 17:26:44,908 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-17 17:26:44,911 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 17:26:44,971 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-17 17:26:44,971 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 17:26:45,012 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-17 17:26:45,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1203395841] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 17:26:45,012 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 17:26:45,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-17 17:26:45,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654633317] [2023-11-17 17:26:45,013 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 17:26:45,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-17 17:26:45,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 17:26:45,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-17 17:26:45,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-17 17:26:45,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 17:26:45,019 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 17:26:45,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 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) [2023-11-17 17:26:45,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 17:26:45,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 17:26:45,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 17:26:45,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 17:26:45,119 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-17 17:26:45,129 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-17 17:26:45,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 17:26:45,334 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-17 17:26:45,336 INFO L307 ceAbstractionStarter]: Result for error location t2_funThread1of1ForFork1 was SAFE (1/3) [2023-11-17 17:26:45,340 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 17:26:45,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-17 17:26:45,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 17:26:45,343 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-17 17:26:45,348 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-17 17:26:45,348 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1_funThread1of1ForFork0 ======== [2023-11-17 17:26:45,349 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=LoopHeads, 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;@71ac6959, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 17:26:45,349 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-17 17:26:45,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2023-11-17 17:26:45,448 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-17 17:26:45,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 17:26:45,449 INFO L85 PathProgramCache]: Analyzing trace with hash -784519595, now seen corresponding path program 1 times [2023-11-17 17:26:45,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 17:26:45,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349025000] [2023-11-17 17:26:45,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 17:26:45,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 17:26:45,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 17:26:45,492 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-17 17:26:45,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 17:26:45,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349025000] [2023-11-17 17:26:45,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349025000] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 17:26:45,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 17:26:45,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 17:26:45,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25194764] [2023-11-17 17:26:45,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 17:26:45,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-17 17:26:45,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 17:26:45,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-17 17:26:45,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-17 17:26:45,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 17:26:45,504 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 17:26:45,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 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) [2023-11-17 17:26:45,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 17:26:47,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 17:26:47,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-17 17:26:47,596 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-17 17:26:47,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 17:26:47,597 INFO L85 PathProgramCache]: Analyzing trace with hash -883016560, now seen corresponding path program 1 times [2023-11-17 17:26:47,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 17:26:47,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874202594] [2023-11-17 17:26:47,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 17:26:47,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 17:26:47,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 17:26:47,955 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 17:26:47,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 17:26:47,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874202594] [2023-11-17 17:26:47,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874202594] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 17:26:47,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669854903] [2023-11-17 17:26:47,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 17:26:47,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 17:26:47,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 17:26:47,959 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 17:26:47,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-17 17:26:48,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 17:26:48,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-17 17:26:48,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 17:26:48,324 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-17 17:26:48,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-17 17:26:48,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-17 17:26:48,569 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 17:26:48,570 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 17:26:48,609 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_87 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1_ids~0#1.base| v_ArrVal_87) |c_~#global1~0.base|) |c_~#global1~0.offset|) 0)) is different from false [2023-11-17 17:26:48,857 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2023-11-17 17:26:48,863 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-17 17:26:49,369 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2023-11-17 17:26:49,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669854903] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 17:26:49,369 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 17:26:49,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2023-11-17 17:26:49,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750982922] [2023-11-17 17:26:49,370 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 17:26:49,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-17 17:26:49,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 17:26:49,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-17 17:26:49,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=430, Unknown=2, NotChecked=42, Total=552 [2023-11-17 17:26:49,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 17:26:49,372 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 17:26:49,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.875) internal successors, (141), 24 states have internal predecessors, (141), 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) [2023-11-17 17:26:49,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 17:26:49,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 17:26:50,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 17:26:50,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-17 17:26:50,702 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-17 17:26:50,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 17:26:50,900 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-17 17:26:50,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 17:26:50,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1422416681, now seen corresponding path program 1 times [2023-11-17 17:26:50,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 17:26:50,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740794955] [2023-11-17 17:26:50,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 17:26:50,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 17:26:50,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 17:26:50,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 17:26:50,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 17:26:50,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740794955] [2023-11-17 17:26:50,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740794955] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 17:26:50,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175893227] [2023-11-17 17:26:50,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 17:26:50,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 17:26:50,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 17:26:50,968 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 17:26:50,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-17 17:26:51,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 17:26:51,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-17 17:26:51,070 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 17:26:51,104 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 17:26:51,104 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 17:26:51,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 17:26:51,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175893227] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 17:26:51,145 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 17:26:51,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-17 17:26:51,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354611917] [2023-11-17 17:26:51,146 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 17:26:51,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-17 17:26:51,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 17:26:51,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-17 17:26:51,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-17 17:26:51,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 17:26:51,147 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 17:26:51,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.8) internal successors, (118), 10 states have internal predecessors, (118), 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) [2023-11-17 17:26:51,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 17:26:51,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-17 17:26:51,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 17:26:51,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 17:26:51,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-17 17:26:51,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 17:26:51,240 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-17 17:26:51,253 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-17 17:26:51,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 17:26:51,448 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-17 17:26:51,448 INFO L307 ceAbstractionStarter]: Result for error location t1_funThread1of1ForFork0 was SAFE (2/3) [2023-11-17 17:26:51,451 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 17:26:51,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-17 17:26:51,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 17:26:51,453 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-17 17:26:51,461 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-17 17:26:51,461 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-11-17 17:26:51,461 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=LoopHeads, 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;@71ac6959, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 17:26:51,462 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-17 17:26:51,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (8)] Waiting until timeout for monitored process [2023-11-17 17:26:51,515 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-17 17:26:51,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 17:26:51,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1032239799, now seen corresponding path program 1 times [2023-11-17 17:26:51,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 17:26:51,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121980570] [2023-11-17 17:26:51,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 17:26:51,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 17:26:51,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-17 17:26:51,529 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-17 17:26:51,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-17 17:26:51,553 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-17 17:26:51,554 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-17 17:26:51,554 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-11-17 17:26:51,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-11-17 17:26:51,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-17 17:26:51,555 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-17 17:26:51,556 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (3/3) [2023-11-17 17:26:51,556 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-17 17:26:51,556 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-17 17:26:51,598 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-11-17 17:26:51,602 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 17:26:51,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-17 17:26:51,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 17:26:51,605 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-17 17:26:51,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (9)] Waiting until timeout for monitored process [2023-11-17 17:26:51,618 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-17 17:26:51,618 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t2_funThread1of2ForFork1 ======== [2023-11-17 17:26:51,618 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=LoopHeads, 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;@71ac6959, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 17:26:51,619 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.