/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_THREAD_INSTANCE --traceabstraction.maximal.amount.of.steps.the.threads.are.allowed.to.take.successively 1 --traceabstraction.enable.heuristic.with.loops.as.step.type true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-complex/safestack_relacy.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-218013a [2023-05-04 02:08:14,149 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2023-05-04 02:08:14,210 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-05-04 02:08:14,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-05-04 02:08:14,210 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-05-04 02:08:14,225 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-04 02:08:14,254 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-04 02:08:14,254 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-04 02:08:14,255 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-04 02:08:14,255 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-04 02:08:14,256 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-04 02:08:14,256 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-04 02:08:14,257 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-04 02:08:14,257 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-04 02:08:14,257 INFO L138 SettingsManager]: * Use SBE=true [2023-05-04 02:08:14,257 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-04 02:08:14,258 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-04 02:08:14,258 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-04 02:08:14,258 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-04 02:08:14,258 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-04 02:08:14,258 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-04 02:08:14,258 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-04 02:08:14,258 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-04 02:08:14,258 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-04 02:08:14,258 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-04 02:08:14,258 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-04 02:08:14,258 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-04 02:08:14,259 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-04 02:08:14,259 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-04 02:08:14,259 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-04 02:08:14,259 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-04 02:08:14,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 02:08:14,259 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-04 02:08:14,259 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-04 02:08:14,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-04 02:08:14,259 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-04 02:08:14,259 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-04 02:08:14,259 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-04 02:08:14,264 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-04 02:08:14,265 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-04 02:08:14,265 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-04 02:08:14,265 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-04 02:08:14,265 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> true [2023-05-04 02:08:14,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-04 02:08:14,637 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-04 02:08:14,638 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-04 02:08:14,639 INFO L271 PluginConnector]: Initializing CDTParser... [2023-05-04 02:08:14,639 INFO L275 PluginConnector]: CDTParser initialized [2023-05-04 02:08:14,641 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-complex/safestack_relacy.i [2023-05-04 02:08:14,691 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/693108404/4ecef0798391452b995491c57995bb27/FLAGc650849d4 [2023-05-04 02:08:15,114 INFO L306 CDTParser]: Found 1 translation units. [2023-05-04 02:08:15,115 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/safestack_relacy.i [2023-05-04 02:08:15,137 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/693108404/4ecef0798391452b995491c57995bb27/FLAGc650849d4 [2023-05-04 02:08:15,150 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/693108404/4ecef0798391452b995491c57995bb27 [2023-05-04 02:08:15,155 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-04 02:08:15,157 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-05-04 02:08:15,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-05-04 02:08:15,159 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-05-04 02:08:15,161 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-05-04 02:08:15,161 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 02:08:15" (1/1) ... [2023-05-04 02:08:15,162 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@539f2760 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 02:08:15, skipping insertion in model container [2023-05-04 02:08:15,162 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 02:08:15" (1/1) ... [2023-05-04 02:08:15,166 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-05-04 02:08:15,208 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-05-04 02:08:15,696 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/safestack_relacy.i[78860,78873] [2023-05-04 02:08:15,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 02:08:15,713 INFO L203 MainTranslator]: Completed pre-run [2023-05-04 02:08:15,765 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/safestack_relacy.i[78860,78873] [2023-05-04 02:08:15,766 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 02:08:15,839 INFO L208 MainTranslator]: Completed translation [2023-05-04 02:08:15,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 02:08:15 WrapperNode [2023-05-04 02:08:15,839 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-05-04 02:08:15,840 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-04 02:08:15,840 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-04 02:08:15,840 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-04 02:08:15,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 02:08:15" (1/1) ... [2023-05-04 02:08:15,865 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 02:08:15" (1/1) ... [2023-05-04 02:08:15,911 INFO L138 Inliner]: procedures = 481, calls = 74, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 283 [2023-05-04 02:08:15,912 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-04 02:08:15,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-04 02:08:15,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-04 02:08:15,913 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-04 02:08:15,918 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 02:08:15" (1/1) ... [2023-05-04 02:08:15,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 02:08:15" (1/1) ... [2023-05-04 02:08:15,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 02:08:15" (1/1) ... [2023-05-04 02:08:15,922 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 02:08:15" (1/1) ... [2023-05-04 02:08:15,931 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 02:08:15" (1/1) ... [2023-05-04 02:08:15,934 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 02:08:15" (1/1) ... [2023-05-04 02:08:15,936 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 02:08:15" (1/1) ... [2023-05-04 02:08:15,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 02:08:15" (1/1) ... [2023-05-04 02:08:15,942 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-04 02:08:15,942 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-04 02:08:15,943 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-04 02:08:15,943 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-04 02:08:15,953 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 02:08:15" (1/1) ... [2023-05-04 02:08:15,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 02:08:15,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 02:08:15,984 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-05-04 02:08:16,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-05-04 02:08:16,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-05-04 02:08:16,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-05-04 02:08:16,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-05-04 02:08:16,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-05-04 02:08:16,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-05-04 02:08:16,025 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-05-04 02:08:16,025 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-05-04 02:08:16,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-04 02:08:16,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-04 02:08:16,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-05-04 02:08:16,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-05-04 02:08:16,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-05-04 02:08:16,026 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2023-05-04 02:08:16,281 INFO L235 CfgBuilder]: Building ICFG [2023-05-04 02:08:16,283 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-04 02:08:16,616 INFO L276 CfgBuilder]: Performing block encoding [2023-05-04 02:08:16,670 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-04 02:08:16,670 INFO L300 CfgBuilder]: Removed 7 assume(true) statements. [2023-05-04 02:08:16,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 02:08:16 BoogieIcfgContainer [2023-05-04 02:08:16,672 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-04 02:08:16,674 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-04 02:08:16,674 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-04 02:08:16,677 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-04 02:08:16,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.05 02:08:15" (1/3) ... [2023-05-04 02:08:16,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@667f0318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 02:08:16, skipping insertion in model container [2023-05-04 02:08:16,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 02:08:15" (2/3) ... [2023-05-04 02:08:16,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@667f0318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 02:08:16, skipping insertion in model container [2023-05-04 02:08:16,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 02:08:16" (3/3) ... [2023-05-04 02:08:16,679 INFO L112 eAbstractionObserver]: Analyzing ICFG safestack_relacy.i [2023-05-04 02:08:16,685 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-04 02:08:16,692 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-04 02:08:16,692 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-05-04 02:08:16,693 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-04 02:08:16,803 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-05-04 02:08:16,838 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 02:08:16,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 02:08:16,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 02:08:16,854 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-05-04 02:08:16,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-05-04 02:08:16,912 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 02:08:16,944 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == threadThread1of1ForFork0 ======== [2023-05-04 02:08:16,953 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;@74911b3d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 02:08:16,954 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-04 02:08:17,136 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 02:08:17,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:17,141 INFO L85 PathProgramCache]: Analyzing trace with hash 892238628, now seen corresponding path program 1 times [2023-05-04 02:08:17,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:17,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426961771] [2023-05-04 02:08:17,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:17,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:17,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:17,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 02:08:17,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:08:17,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426961771] [2023-05-04 02:08:17,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426961771] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 02:08:17,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 02:08:17,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-05-04 02:08:17,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947058260] [2023-05-04 02:08:17,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 02:08:17,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-05-04 02:08:17,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:08:17,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-05-04 02:08:17,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-05-04 02:08:17,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:17,653 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:08:17,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 02:08:17,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:17,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:17,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-05-04 02:08:17,779 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 02:08:17,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:17,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1733165281, now seen corresponding path program 1 times [2023-05-04 02:08:17,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:17,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710481342] [2023-05-04 02:08:17,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:17,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:17,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:18,050 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 02:08:18,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:08:18,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710481342] [2023-05-04 02:08:18,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710481342] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 02:08:18,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103392441] [2023-05-04 02:08:18,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:18,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 02:08:18,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 02:08:18,053 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 02:08:18,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-05-04 02:08:18,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:18,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 2 conjunts are in the unsatisfiable core [2023-05-04 02:08:18,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 02:08:18,285 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-05-04 02:08:18,285 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-04 02:08:18,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103392441] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 02:08:18,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-05-04 02:08:18,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2023-05-04 02:08:18,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774448586] [2023-05-04 02:08:18,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 02:08:18,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 02:08:18,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:08:18,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 02:08:18,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-05-04 02:08:18,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:18,288 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:08:18,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 02:08:18,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:18,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:18,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:18,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:08:18,359 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-05-04 02:08:18,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-05-04 02:08:18,557 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 02:08:18,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:18,557 INFO L85 PathProgramCache]: Analyzing trace with hash -176514270, now seen corresponding path program 1 times [2023-05-04 02:08:18,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:18,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209803716] [2023-05-04 02:08:18,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:18,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:18,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:18,711 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 02:08:18,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:08:18,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209803716] [2023-05-04 02:08:18,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209803716] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 02:08:18,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [192330337] [2023-05-04 02:08:18,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:18,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 02:08:18,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 02:08:18,741 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) [2023-05-04 02:08:18,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-05-04 02:08:18,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:18,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 6 conjunts are in the unsatisfiable core [2023-05-04 02:08:18,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 02:08:19,010 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 02:08:19,010 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 02:08:19,081 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 02:08:19,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [192330337] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 02:08:19,084 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 02:08:19,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 12 [2023-05-04 02:08:19,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441639094] [2023-05-04 02:08:19,084 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 02:08:19,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-05-04 02:08:19,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:08:19,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-05-04 02:08:19,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-05-04 02:08:19,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:19,086 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:08:19,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 20.416666666666668) internal successors, (245), 12 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 02:08:19,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:19,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:08:19,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:19,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:19,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:08:19,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-05-04 02:08:19,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-05-04 02:08:19,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 02:08:19,465 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 02:08:19,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:19,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1890570467, now seen corresponding path program 1 times [2023-05-04 02:08:19,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:19,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724700013] [2023-05-04 02:08:19,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:19,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:19,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:19,626 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-05-04 02:08:19,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:08:19,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724700013] [2023-05-04 02:08:19,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724700013] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 02:08:19,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 02:08:19,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-05-04 02:08:19,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121602354] [2023-05-04 02:08:19,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 02:08:19,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-05-04 02:08:19,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:08:19,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-05-04 02:08:19,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-05-04 02:08:19,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:19,628 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:08:19,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 02:08:19,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:19,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:08:19,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-05-04 02:08:19,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:20,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:20,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:08:20,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-05-04 02:08:20,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:20,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-05-04 02:08:20,113 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 02:08:20,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:20,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1712766115, now seen corresponding path program 2 times [2023-05-04 02:08:20,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:20,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75481579] [2023-05-04 02:08:20,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:20,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:20,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:20,677 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-05-04 02:08:20,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:08:20,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75481579] [2023-05-04 02:08:20,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75481579] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 02:08:20,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50246126] [2023-05-04 02:08:20,678 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-04 02:08:20,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 02:08:20,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 02:08:20,679 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 02:08:20,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-05-04 02:08:20,806 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-05-04 02:08:20,806 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 02:08:20,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 10 conjunts are in the unsatisfiable core [2023-05-04 02:08:20,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 02:08:21,235 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-05-04 02:08:21,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-04 02:08:21,257 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 18 treesize of output 20 [2023-05-04 02:08:21,275 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 23 treesize of output 7 [2023-05-04 02:08:21,277 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-05-04 02:08:21,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 02:08:21,318 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 02:08:21,318 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 27 [2023-05-04 02:08:21,327 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 26 treesize of output 18 [2023-05-04 02:08:21,484 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-05-04 02:08:21,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [50246126] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 02:08:21,484 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 02:08:21,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2023-05-04 02:08:21,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118961130] [2023-05-04 02:08:21,485 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 02:08:21,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-05-04 02:08:21,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:08:21,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-05-04 02:08:21,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=73, Unknown=3, NotChecked=0, Total=110 [2023-05-04 02:08:21,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:21,486 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:08:21,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 29.727272727272727) internal successors, (327), 11 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 02:08:21,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:21,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:08:21,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-05-04 02:08:21,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:21,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:21,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:21,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:08:21,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-05-04 02:08:21,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:21,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 02:08:21,813 INFO L805 garLoopResultBuilder]: Registering result SAFE for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-05-04 02:08:21,836 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-05-04 02:08:22,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 02:08:22,042 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2023-05-04 02:08:22,043 INFO L307 ceAbstractionStarter]: Result for error location threadThread1of1ForFork0 was SAFE (1/2) [2023-05-04 02:08:22,047 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 02:08:22,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 02:08:22,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 02:08:22,048 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-05-04 02:08:22,102 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 02:08:22,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2023-05-04 02:08:22,106 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-04 02:08:22,107 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;@74911b3d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 02:08:22,107 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-04 02:08:22,166 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 02:08:22,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:22,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1343198718, now seen corresponding path program 1 times [2023-05-04 02:08:22,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:22,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922258305] [2023-05-04 02:08:22,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:22,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:22,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:22,250 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-04 02:08:22,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:08:22,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922258305] [2023-05-04 02:08:22,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922258305] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 02:08:22,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 02:08:22,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-05-04 02:08:22,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093269571] [2023-05-04 02:08:22,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 02:08:22,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-05-04 02:08:22,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:08:22,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-05-04 02:08:22,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-05-04 02:08:22,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:22,251 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:08:22,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 02:08:22,252 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:22,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:22,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-05-04 02:08:22,273 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 02:08:22,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:22,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1319641623, now seen corresponding path program 1 times [2023-05-04 02:08:22,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:22,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664154436] [2023-05-04 02:08:22,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:22,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:22,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:22,442 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-04 02:08:22,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:08:22,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664154436] [2023-05-04 02:08:22,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664154436] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 02:08:22,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120892233] [2023-05-04 02:08:22,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:22,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 02:08:22,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 02:08:22,466 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) [2023-05-04 02:08:22,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-05-04 02:08:22,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:22,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 6 conjunts are in the unsatisfiable core [2023-05-04 02:08:22,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 02:08:22,652 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-04 02:08:22,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 02:08:22,704 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-04 02:08:22,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120892233] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 02:08:22,704 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 02:08:22,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2023-05-04 02:08:22,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971472227] [2023-05-04 02:08:22,704 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 02:08:22,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-05-04 02:08:22,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:08:22,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-05-04 02:08:22,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2023-05-04 02:08:22,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:22,705 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:08:22,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.733333333333333) internal successors, (131), 15 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 02:08:22,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:22,706 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:22,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:22,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:22,785 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-05-04 02:08:22,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 02:08:22,981 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 02:08:22,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:22,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1168792739, now seen corresponding path program 2 times [2023-05-04 02:08:22,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:22,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763684578] [2023-05-04 02:08:22,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:22,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:23,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:23,068 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-05-04 02:08:23,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:08:23,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763684578] [2023-05-04 02:08:23,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763684578] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 02:08:23,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 02:08:23,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 02:08:23,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557363008] [2023-05-04 02:08:23,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 02:08:23,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 02:08:23,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:08:23,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 02:08:23,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 02:08:23,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:23,071 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:08:23,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 02:08:23,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:23,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:23,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:23,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:23,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:23,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:08:23,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-05-04 02:08:23,085 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 02:08:23,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:23,085 INFO L85 PathProgramCache]: Analyzing trace with hash -461846822, now seen corresponding path program 1 times [2023-05-04 02:08:23,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:23,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146586336] [2023-05-04 02:08:23,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:23,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:23,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-05-04 02:08:23,115 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-05-04 02:08:23,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-05-04 02:08:23,148 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-05-04 02:08:23,148 INFO L359 BasicCegarLoop]: Counterexample is feasible [2023-05-04 02:08:23,148 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-05-04 02:08:23,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-05-04 02:08:23,149 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2023-05-04 02:08:23,149 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (2/2) [2023-05-04 02:08:23,150 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-05-04 02:08:23,150 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-05-04 02:08:23,193 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-05-04 02:08:23,196 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 02:08:23,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 02:08:23,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 02:08:23,198 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) [2023-05-04 02:08:23,202 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 02:08:23,204 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 [2023-05-04 02:08:23,208 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == threadThread1of2ForFork0 ======== [2023-05-04 02:08:23,208 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;@74911b3d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 02:08:23,208 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-04 02:08:23,549 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 02:08:23,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:23,550 INFO L85 PathProgramCache]: Analyzing trace with hash -895191482, now seen corresponding path program 1 times [2023-05-04 02:08:23,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:23,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377663013] [2023-05-04 02:08:23,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:23,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:23,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:23,788 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2023-05-04 02:08:23,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:08:23,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377663013] [2023-05-04 02:08:23,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377663013] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 02:08:23,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 02:08:23,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-05-04 02:08:23,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769169546] [2023-05-04 02:08:23,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 02:08:23,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-05-04 02:08:23,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:08:23,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-05-04 02:08:23,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-05-04 02:08:23,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:23,790 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:08:23,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 49.4) internal successors, (247), 5 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 02:08:23,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:23,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:23,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-05-04 02:08:23,900 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 02:08:23,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:23,901 INFO L85 PathProgramCache]: Analyzing trace with hash 400260330, now seen corresponding path program 1 times [2023-05-04 02:08:23,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:23,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271538934] [2023-05-04 02:08:23,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:23,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:23,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:24,039 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-05-04 02:08:24,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:08:24,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271538934] [2023-05-04 02:08:24,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271538934] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 02:08:24,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 02:08:24,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-05-04 02:08:24,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994105760] [2023-05-04 02:08:24,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 02:08:24,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-05-04 02:08:24,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:08:24,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-05-04 02:08:24,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-05-04 02:08:24,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:24,041 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:08:24,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 02:08:24,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:24,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:24,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:24,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:24,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-05-04 02:08:24,320 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 02:08:24,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:24,321 INFO L85 PathProgramCache]: Analyzing trace with hash 842551824, now seen corresponding path program 1 times [2023-05-04 02:08:24,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:24,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591137222] [2023-05-04 02:08:24,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:24,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:24,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:24,887 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 620 trivial. 0 not checked. [2023-05-04 02:08:24,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:08:24,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591137222] [2023-05-04 02:08:24,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591137222] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 02:08:24,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482988095] [2023-05-04 02:08:24,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:24,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 02:08:24,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 02:08:24,889 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 02:08:24,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-05-04 02:08:25,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:25,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 1435 conjuncts, 6 conjunts are in the unsatisfiable core [2023-05-04 02:08:25,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 02:08:25,273 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 620 trivial. 0 not checked. [2023-05-04 02:08:25,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 02:08:25,398 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 620 trivial. 0 not checked. [2023-05-04 02:08:25,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482988095] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 02:08:25,398 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 02:08:25,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2023-05-04 02:08:25,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178615315] [2023-05-04 02:08:25,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 02:08:25,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-05-04 02:08:25,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:08:25,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-05-04 02:08:25,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2023-05-04 02:08:25,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:25,400 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:08:25,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 24.133333333333333) internal successors, (362), 15 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 02:08:25,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:25,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:25,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:25,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:25,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:25,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:25,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-05-04 02:08:25,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-05-04 02:08:25,803 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 02:08:25,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:25,803 INFO L85 PathProgramCache]: Analyzing trace with hash -440920211, now seen corresponding path program 2 times [2023-05-04 02:08:25,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:25,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095236548] [2023-05-04 02:08:25,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:25,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:25,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:26,117 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2023-05-04 02:08:26,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:08:26,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095236548] [2023-05-04 02:08:26,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095236548] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 02:08:26,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 02:08:26,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-05-04 02:08:26,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100247931] [2023-05-04 02:08:26,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 02:08:26,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-05-04 02:08:26,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:08:26,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-05-04 02:08:26,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-05-04 02:08:26,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:26,119 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:08:26,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 02:08:26,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:26,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:26,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:26,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:27,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:27,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:27,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:27,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:27,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-05-04 02:08:27,770 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 02:08:27,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:27,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1534282510, now seen corresponding path program 1 times [2023-05-04 02:08:27,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:27,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872867358] [2023-05-04 02:08:27,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:27,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:27,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:33,149 INFO L134 CoverageAnalysis]: Checked inductivity of 11643 backedges. 4482 proven. 10 refuted. 0 times theorem prover too weak. 7151 trivial. 0 not checked. [2023-05-04 02:08:33,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:08:33,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872867358] [2023-05-04 02:08:33,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872867358] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 02:08:33,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [121994519] [2023-05-04 02:08:33,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:33,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 02:08:33,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 02:08:33,162 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 02:08:33,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-05-04 02:08:34,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:34,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 6259 conjuncts, 4 conjunts are in the unsatisfiable core [2023-05-04 02:08:34,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 02:08:34,566 INFO L134 CoverageAnalysis]: Checked inductivity of 11643 backedges. 5456 proven. 0 refuted. 0 times theorem prover too weak. 6187 trivial. 0 not checked. [2023-05-04 02:08:34,566 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-04 02:08:34,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [121994519] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 02:08:34,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-05-04 02:08:34,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 16 [2023-05-04 02:08:34,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315257743] [2023-05-04 02:08:34,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 02:08:34,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-05-04 02:08:34,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:08:34,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-05-04 02:08:34,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2023-05-04 02:08:34,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:34,570 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:08:34,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 132.0) internal successors, (660), 5 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 02:08:34,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:34,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:34,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:34,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:34,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:35,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:35,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:35,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:35,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:35,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:35,771 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-05-04 02:08:35,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-05-04 02:08:35,960 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 02:08:35,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:35,961 INFO L85 PathProgramCache]: Analyzing trace with hash 791910549, now seen corresponding path program 1 times [2023-05-04 02:08:35,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:35,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889410647] [2023-05-04 02:08:35,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:35,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:36,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:41,800 INFO L134 CoverageAnalysis]: Checked inductivity of 19196 backedges. 6477 proven. 10 refuted. 0 times theorem prover too weak. 12709 trivial. 0 not checked. [2023-05-04 02:08:41,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:08:41,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889410647] [2023-05-04 02:08:41,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889410647] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 02:08:41,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278376057] [2023-05-04 02:08:41,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:41,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 02:08:41,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 02:08:41,814 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 02:08:41,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-05-04 02:08:43,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:43,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 7625 conjuncts, 33 conjunts are in the unsatisfiable core [2023-05-04 02:08:43,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 02:08:44,648 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-05-04 02:08:44,943 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 7 [2023-05-04 02:08:44,986 INFO L134 CoverageAnalysis]: Checked inductivity of 19196 backedges. 6457 proven. 30 refuted. 0 times theorem prover too weak. 12709 trivial. 0 not checked. [2023-05-04 02:08:44,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 02:08:45,221 INFO L134 CoverageAnalysis]: Checked inductivity of 19196 backedges. 6477 proven. 10 refuted. 0 times theorem prover too weak. 12709 trivial. 0 not checked. [2023-05-04 02:08:45,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278376057] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 02:08:45,221 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 02:08:45,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 16, 13] total 29 [2023-05-04 02:08:45,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754201038] [2023-05-04 02:08:45,222 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 02:08:45,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-05-04 02:08:45,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:08:45,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-05-04 02:08:45,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=724, Unknown=0, NotChecked=0, Total=812 [2023-05-04 02:08:45,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:45,227 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:08:45,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 35.41379310344828) internal successors, (1027), 29 states have internal predecessors, (1027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 02:08:45,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:45,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:45,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:45,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:45,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:45,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:49,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:49,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:49,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:49,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:49,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:49,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-05-04 02:08:49,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-05-04 02:08:49,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-05-04 02:08:49,917 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 02:08:49,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:49,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1750162872, now seen corresponding path program 1 times [2023-05-04 02:08:49,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:49,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259903752] [2023-05-04 02:08:49,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:49,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:50,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:57,188 INFO L134 CoverageAnalysis]: Checked inductivity of 33503 backedges. 7730 proven. 220 refuted. 0 times theorem prover too weak. 25553 trivial. 0 not checked. [2023-05-04 02:08:57,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:08:57,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259903752] [2023-05-04 02:08:57,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259903752] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 02:08:57,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783064829] [2023-05-04 02:08:57,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:57,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 02:08:57,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 02:08:57,205 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 02:08:57,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-05-04 02:08:58,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:58,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 9707 conjuncts, 71 conjunts are in the unsatisfiable core [2023-05-04 02:08:58,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 02:09:00,116 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-05-04 02:09:00,555 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2023-05-04 02:09:00,555 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2023-05-04 02:09:00,772 INFO L356 Elim1Store]: treesize reduction 28, result has 9.7 percent of original size [2023-05-04 02:09:00,772 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 22 [2023-05-04 02:09:00,933 INFO L134 CoverageAnalysis]: Checked inductivity of 33503 backedges. 8801 proven. 48 refuted. 0 times theorem prover too weak. 24654 trivial. 0 not checked. [2023-05-04 02:09:00,933 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 02:09:06,637 INFO L134 CoverageAnalysis]: Checked inductivity of 33503 backedges. 9770 proven. 0 refuted. 0 times theorem prover too weak. 23733 trivial. 0 not checked. [2023-05-04 02:09:06,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [783064829] provided 1 perfect and 1 imperfect interpolant sequences [2023-05-04 02:09:06,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-05-04 02:09:06,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [7, 27] total 58 [2023-05-04 02:09:06,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045974011] [2023-05-04 02:09:06,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 02:09:06,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-05-04 02:09:06,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:09:06,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-05-04 02:09:06,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=3104, Unknown=1, NotChecked=0, Total=3306 [2023-05-04 02:09:06,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:09:06,642 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:09:06,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 26.964285714285715) internal successors, (755), 28 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 02:09:06,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:09:06,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:09:06,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:09:06,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:09:06,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:09:06,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2023-05-04 02:09:06,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:09:13,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:09:13,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:09:13,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:09:13,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:09:13,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:09:13,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-05-04 02:09:13,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-05-04 02:09:13,777 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-05-04 02:09:13,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-05-04 02:09:13,963 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 02:09:13,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:09:13,964 INFO L85 PathProgramCache]: Analyzing trace with hash -828856178, now seen corresponding path program 2 times [2023-05-04 02:09:13,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:09:13,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671430621] [2023-05-04 02:09:13,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:09:13,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:09:14,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:09:26,688 INFO L134 CoverageAnalysis]: Checked inductivity of 59434 backedges. 20280 proven. 0 refuted. 0 times theorem prover too weak. 39154 trivial. 0 not checked. [2023-05-04 02:09:26,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:09:26,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671430621] [2023-05-04 02:09:26,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671430621] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 02:09:26,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 02:09:26,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-05-04 02:09:26,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552508387] [2023-05-04 02:09:26,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 02:09:26,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-05-04 02:09:26,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:09:26,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-05-04 02:09:26,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2023-05-04 02:09:26,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:09:26,694 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:09:26,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.46153846153846) internal successors, (669), 13 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 02:09:26,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:09:26,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:09:26,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:09:26,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:09:26,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:09:26,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2023-05-04 02:09:26,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2023-05-04 02:09:26,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:09:37,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:09:37,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:09:37,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:09:37,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:09:37,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:09:37,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-05-04 02:09:37,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-05-04 02:09:37,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-05-04 02:09:37,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-05-04 02:09:37,928 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 02:09:37,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:09:37,929 INFO L85 PathProgramCache]: Analyzing trace with hash 142046990, now seen corresponding path program 3 times [2023-05-04 02:09:37,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:09:37,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866331482] [2023-05-04 02:09:37,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:09:37,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:09:38,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:09:51,360 INFO L134 CoverageAnalysis]: Checked inductivity of 75865 backedges. 12326 proven. 220 refuted. 0 times theorem prover too weak. 63319 trivial. 0 not checked. [2023-05-04 02:09:51,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:09:51,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866331482] [2023-05-04 02:09:51,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866331482] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 02:09:51,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280262763] [2023-05-04 02:09:51,361 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-05-04 02:09:51,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 02:09:51,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 02:09:51,397 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 02:09:51,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-05-04 02:09:52,454 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-05-04 02:09:52,454 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 02:09:52,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 27 conjunts are in the unsatisfiable core [2023-05-04 02:09:52,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 02:09:59,555 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-05-04 02:09:59,889 INFO L356 Elim1Store]: treesize reduction 60, result has 31.0 percent of original size [2023-05-04 02:09:59,890 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 45 [2023-05-04 02:09:59,897 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 23 treesize of output 7 [2023-05-04 02:09:59,915 INFO L134 CoverageAnalysis]: Checked inductivity of 75865 backedges. 1045 proven. 16 refuted. 0 times theorem prover too weak. 74804 trivial. 0 not checked. [2023-05-04 02:09:59,916 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 02:10:00,142 INFO L134 CoverageAnalysis]: Checked inductivity of 75865 backedges. 1061 proven. 0 refuted. 0 times theorem prover too weak. 74804 trivial. 0 not checked. [2023-05-04 02:10:00,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280262763] provided 1 perfect and 1 imperfect interpolant sequences [2023-05-04 02:10:00,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-05-04 02:10:00,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 11] total 19 [2023-05-04 02:10:00,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193670386] [2023-05-04 02:10:00,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 02:10:00,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-05-04 02:10:00,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:10:00,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-05-04 02:10:00,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2023-05-04 02:10:00,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:10:00,149 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:10:00,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.33333333333333) internal successors, (458), 6 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 02:10:00,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:10:00,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:10:00,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:10:00,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:10:00,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:10:00,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2023-05-04 02:10:00,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2023-05-04 02:10:00,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2023-05-04 02:10:00,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:10:02,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:10:02,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:10:02,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:10:02,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:10:02,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:10:02,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-05-04 02:10:02,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-05-04 02:10:02,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-05-04 02:10:02,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 02:10:02,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-05-04 02:10:02,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-05-04 02:10:02,999 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 02:10:02,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:10:03,000 INFO L85 PathProgramCache]: Analyzing trace with hash -413332941, now seen corresponding path program 4 times [2023-05-04 02:10:03,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:10:03,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775300783] [2023-05-04 02:10:03,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:10:03,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:10:03,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat