/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-ext/25_stack_longest-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-218013a [2023-05-04 01:57:01,317 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2023-05-04 01:57:01,394 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-05-04 01:57:01,394 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-05-04 01:57:01,395 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-05-04 01:57:01,396 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-04 01:57:01,425 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-04 01:57:01,426 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-04 01:57:01,426 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-04 01:57:01,426 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-04 01:57:01,427 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-04 01:57:01,427 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-04 01:57:01,428 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-04 01:57:01,428 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-04 01:57:01,428 INFO L138 SettingsManager]: * Use SBE=true [2023-05-04 01:57:01,428 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-04 01:57:01,428 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-04 01:57:01,428 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-04 01:57:01,428 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-04 01:57:01,429 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-04 01:57:01,429 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-04 01:57:01,429 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-04 01:57:01,429 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-04 01:57:01,429 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-04 01:57:01,429 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-04 01:57:01,429 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-04 01:57:01,429 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-04 01:57:01,430 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-04 01:57:01,430 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-04 01:57:01,430 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-04 01:57:01,430 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-04 01:57:01,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 01:57:01,430 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-04 01:57:01,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-04 01:57:01,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-04 01:57:01,432 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-04 01:57:01,432 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-04 01:57:01,432 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-04 01:57:01,432 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-04 01:57:01,432 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-04 01:57:01,432 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-04 01:57:01,433 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-04 01:57:01,433 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> true [2023-05-04 01:57:01,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-04 01:57:01,687 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-04 01:57:01,689 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-04 01:57:01,690 INFO L271 PluginConnector]: Initializing CDTParser... [2023-05-04 01:57:01,692 INFO L275 PluginConnector]: CDTParser initialized [2023-05-04 01:57:01,693 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/25_stack_longest-1.i [2023-05-04 01:57:01,755 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba6743fa5/dc2c0e313bd247b9a0192f0875a294fb/FLAGbba996e28 [2023-05-04 01:57:02,301 INFO L306 CDTParser]: Found 1 translation units. [2023-05-04 01:57:02,302 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/25_stack_longest-1.i [2023-05-04 01:57:02,316 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba6743fa5/dc2c0e313bd247b9a0192f0875a294fb/FLAGbba996e28 [2023-05-04 01:57:02,770 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba6743fa5/dc2c0e313bd247b9a0192f0875a294fb [2023-05-04 01:57:02,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-04 01:57:02,774 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-05-04 01:57:02,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-05-04 01:57:02,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-05-04 01:57:02,778 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-05-04 01:57:02,779 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 01:57:02" (1/1) ... [2023-05-04 01:57:02,781 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e69316a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:57:02, skipping insertion in model container [2023-05-04 01:57:02,781 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 01:57:02" (1/1) ... [2023-05-04 01:57:02,788 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-05-04 01:57:02,850 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-05-04 01:57:03,197 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-ext/25_stack_longest-1.i[31180,31193] [2023-05-04 01:57:03,213 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 01:57:03,222 INFO L203 MainTranslator]: Completed pre-run [2023-05-04 01:57:03,270 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-ext/25_stack_longest-1.i[31180,31193] [2023-05-04 01:57:03,283 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 01:57:03,319 INFO L208 MainTranslator]: Completed translation [2023-05-04 01:57:03,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:57:03 WrapperNode [2023-05-04 01:57:03,320 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-05-04 01:57:03,321 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-04 01:57:03,321 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-04 01:57:03,321 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-04 01:57:03,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:57:03" (1/1) ... [2023-05-04 01:57:03,357 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:57:03" (1/1) ... [2023-05-04 01:57:03,388 INFO L138 Inliner]: procedures = 179, calls = 36, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 174 [2023-05-04 01:57:03,388 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-04 01:57:03,389 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-04 01:57:03,390 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-04 01:57:03,390 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-04 01:57:03,397 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:57:03" (1/1) ... [2023-05-04 01:57:03,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:57:03" (1/1) ... [2023-05-04 01:57:03,410 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:57:03" (1/1) ... [2023-05-04 01:57:03,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:57:03" (1/1) ... [2023-05-04 01:57:03,416 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:57:03" (1/1) ... [2023-05-04 01:57:03,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:57:03" (1/1) ... [2023-05-04 01:57:03,433 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:57:03" (1/1) ... [2023-05-04 01:57:03,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:57:03" (1/1) ... [2023-05-04 01:57:03,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-04 01:57:03,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-04 01:57:03,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-04 01:57:03,438 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-04 01:57:03,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:57:03" (1/1) ... [2023-05-04 01:57:03,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 01:57:03,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 01:57:03,478 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 01:57:03,500 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 01:57:03,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-05-04 01:57:03,518 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-05-04 01:57:03,518 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-05-04 01:57:03,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-05-04 01:57:03,518 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-05-04 01:57:03,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-05-04 01:57:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-05-04 01:57:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-05-04 01:57:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-05-04 01:57:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-05-04 01:57:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-04 01:57:03,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-04 01:57:03,520 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 01:57:03,685 INFO L235 CfgBuilder]: Building ICFG [2023-05-04 01:57:03,687 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-04 01:57:04,055 INFO L276 CfgBuilder]: Performing block encoding [2023-05-04 01:57:04,235 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-04 01:57:04,235 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-05-04 01:57:04,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 01:57:04 BoogieIcfgContainer [2023-05-04 01:57:04,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-04 01:57:04,242 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-04 01:57:04,242 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-04 01:57:04,245 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-04 01:57:04,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.05 01:57:02" (1/3) ... [2023-05-04 01:57:04,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d130f6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 01:57:04, skipping insertion in model container [2023-05-04 01:57:04,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:57:03" (2/3) ... [2023-05-04 01:57:04,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d130f6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 01:57:04, skipping insertion in model container [2023-05-04 01:57:04,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 01:57:04" (3/3) ... [2023-05-04 01:57:04,249 INFO L112 eAbstractionObserver]: Analyzing ICFG 25_stack_longest-1.i [2023-05-04 01:57:04,259 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-04 01:57:04,268 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-04 01:57:04,268 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-05-04 01:57:04,268 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-04 01:57:04,345 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-05-04 01:57:04,397 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 01:57:04,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 01:57:04,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 01:57:04,402 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 01:57:04,418 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 01:57:04,440 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 01:57:04,474 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ======== [2023-05-04 01:57:04,481 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;@c3ec756, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 01:57:04,481 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-04 01:57:04,742 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 01:57:04,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:57:04,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1281308666, now seen corresponding path program 1 times [2023-05-04 01:57:04,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:57:04,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615229553] [2023-05-04 01:57:04,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:57:04,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:57:04,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:57:05,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 01:57:05,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:57:05,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615229553] [2023-05-04 01:57:05,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615229553] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 01:57:05,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 01:57:05,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 01:57:05,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061815500] [2023-05-04 01:57:05,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 01:57:05,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 01:57:05,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:57:05,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 01:57:05,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 01:57:05,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:05,249 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:57:05,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 01:57:05,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:05,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:05,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-05-04 01:57:05,346 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 01:57:05,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:57:05,347 INFO L85 PathProgramCache]: Analyzing trace with hash 2075680505, now seen corresponding path program 1 times [2023-05-04 01:57:05,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:57:05,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844058459] [2023-05-04 01:57:05,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:57:05,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:57:05,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:57:05,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 01:57:05,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:57:05,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844058459] [2023-05-04 01:57:05,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844058459] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 01:57:05,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 01:57:05,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-05-04 01:57:05,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791123898] [2023-05-04 01:57:05,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 01:57:05,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-05-04 01:57:05,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:57:05,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-05-04 01:57:05,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-05-04 01:57:05,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:05,631 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:57:05,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 01:57:05,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:05,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:05,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:05,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 01:57:05,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-05-04 01:57:05,810 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 01:57:05,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:57:05,811 INFO L85 PathProgramCache]: Analyzing trace with hash -781804992, now seen corresponding path program 1 times [2023-05-04 01:57:05,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:57:05,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998652498] [2023-05-04 01:57:05,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:57:05,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:57:05,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:57:06,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 01:57:06,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:57:06,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998652498] [2023-05-04 01:57:06,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998652498] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 01:57:06,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 01:57:06,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-05-04 01:57:06,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751952024] [2023-05-04 01:57:06,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 01:57:06,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-05-04 01:57:06,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:57:06,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-05-04 01:57:06,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-05-04 01:57:06,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:06,414 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:57:06,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 12 states have internal predecessors, (84), 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 01:57:06,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:06,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-04 01:57:06,420 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:07,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:07,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 01:57:07,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-05-04 01:57:07,429 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-05-04 01:57:07,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-05-04 01:57:07,445 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-05-04 01:57:07,447 INFO L307 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork0 was SAFE (1/2) [2023-05-04 01:57:07,454 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 01:57:07,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 01:57:07,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 01:57:07,461 INFO L229 MonitoredProcess]: Starting monitored process 3 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 01:57:07,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2023-05-04 01:57:07,470 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 01:57:07,476 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-04 01:57:07,481 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;@c3ec756, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 01:57:07,481 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-04 01:57:07,549 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 01:57:07,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:57:07,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1411259005, now seen corresponding path program 1 times [2023-05-04 01:57:07,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:57:07,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325173488] [2023-05-04 01:57:07,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:57:07,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:57:07,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:57:07,600 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 01:57:07,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:57:07,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325173488] [2023-05-04 01:57:07,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325173488] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 01:57:07,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 01:57:07,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-05-04 01:57:07,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708895988] [2023-05-04 01:57:07,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 01:57:07,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-05-04 01:57:07,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:57:07,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-05-04 01:57:07,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-05-04 01:57:07,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:07,605 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:57:07,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 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 01:57:07,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:07,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:07,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-05-04 01:57:07,669 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 01:57:07,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:57:07,669 INFO L85 PathProgramCache]: Analyzing trace with hash 948036601, now seen corresponding path program 1 times [2023-05-04 01:57:07,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:57:07,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201232500] [2023-05-04 01:57:07,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:57:07,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:57:07,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:57:07,730 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 01:57:07,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:57:07,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201232500] [2023-05-04 01:57:07,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201232500] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 01:57:07,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 01:57:07,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 01:57:07,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734465759] [2023-05-04 01:57:07,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 01:57:07,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 01:57:07,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:57:07,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 01:57:07,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 01:57:07,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:07,732 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:57:07,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 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 01:57:07,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:07,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:07,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:07,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:07,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-05-04 01:57:07,755 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 01:57:07,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:57:07,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1142178906, now seen corresponding path program 1 times [2023-05-04 01:57:07,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:57:07,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402553788] [2023-05-04 01:57:07,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:57:07,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:57:07,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:57:07,867 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 01:57:07,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:57:07,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402553788] [2023-05-04 01:57:07,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402553788] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 01:57:07,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 01:57:07,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-05-04 01:57:07,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50837588] [2023-05-04 01:57:07,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 01:57:07,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-05-04 01:57:07,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:57:07,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-05-04 01:57:07,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-05-04 01:57:07,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:07,870 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:57:07,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 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 01:57:07,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:07,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:07,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:07,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:07,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:07,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 01:57:07,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-05-04 01:57:07,979 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 01:57:07,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:57:07,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1916468595, now seen corresponding path program 1 times [2023-05-04 01:57:07,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:57:07,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915016997] [2023-05-04 01:57:07,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:57:07,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:57:08,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:57:08,349 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 01:57:08,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:57:08,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915016997] [2023-05-04 01:57:08,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915016997] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 01:57:08,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 01:57:08,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-05-04 01:57:08,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400528882] [2023-05-04 01:57:08,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 01:57:08,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-05-04 01:57:08,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:57:08,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-05-04 01:57:08,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-05-04 01:57:08,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:08,354 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:57:08,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.416666666666667) internal successors, (89), 12 states have internal predecessors, (89), 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 01:57:08,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:08,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:08,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-04 01:57:08,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:08,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:08,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:08,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 01:57:08,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-05-04 01:57:08,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-05-04 01:57:08,549 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 01:57:08,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:57:08,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1945097746, now seen corresponding path program 1 times [2023-05-04 01:57:08,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:57:08,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062757217] [2023-05-04 01:57:08,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:57:08,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:57:08,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-05-04 01:57:08,577 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-05-04 01:57:08,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-05-04 01:57:08,637 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-05-04 01:57:08,638 INFO L359 BasicCegarLoop]: Counterexample is feasible [2023-05-04 01:57:08,638 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-05-04 01:57:08,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-05-04 01:57:08,639 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-05-04 01:57:08,640 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (2/2) [2023-05-04 01:57:08,640 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-05-04 01:57:08,640 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-05-04 01:57:08,678 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-05-04 01:57:08,681 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 01:57:08,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 01:57:08,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 01:57:08,718 INFO L229 MonitoredProcess]: Starting monitored process 4 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 01:57:08,722 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 01:57:08,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2023-05-04 01:57:08,727 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-04 01:57:08,728 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;@c3ec756, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 01:57:08,728 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-04 01:57:08,851 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 01:57:08,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:57:08,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1827731574, now seen corresponding path program 1 times [2023-05-04 01:57:08,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:57:08,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675294769] [2023-05-04 01:57:08,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:57:08,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:57:08,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:57:08,893 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-04 01:57:08,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:57:08,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675294769] [2023-05-04 01:57:08,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675294769] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 01:57:08,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 01:57:08,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-05-04 01:57:08,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600028654] [2023-05-04 01:57:08,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 01:57:08,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-05-04 01:57:08,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:57:08,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-05-04 01:57:08,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-05-04 01:57:08,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:08,895 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:57:08,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 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 01:57:08,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:08,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:08,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-05-04 01:57:08,986 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 01:57:08,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:57:08,987 INFO L85 PathProgramCache]: Analyzing trace with hash -756739865, now seen corresponding path program 1 times [2023-05-04 01:57:08,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:57:08,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131389621] [2023-05-04 01:57:08,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:57:08,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:57:09,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:57:09,041 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-04 01:57:09,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:57:09,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131389621] [2023-05-04 01:57:09,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131389621] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 01:57:09,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 01:57:09,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 01:57:09,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69079516] [2023-05-04 01:57:09,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 01:57:09,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 01:57:09,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:57:09,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 01:57:09,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 01:57:09,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:09,044 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:57:09,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 01:57:09,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:09,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:09,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:09,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:09,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-05-04 01:57:09,077 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 01:57:09,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:57:09,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1720445325, now seen corresponding path program 1 times [2023-05-04 01:57:09,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:57:09,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473172535] [2023-05-04 01:57:09,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:57:09,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:57:09,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:57:09,176 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-04 01:57:09,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:57:09,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473172535] [2023-05-04 01:57:09,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473172535] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 01:57:09,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 01:57:09,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-05-04 01:57:09,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408520966] [2023-05-04 01:57:09,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 01:57:09,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-05-04 01:57:09,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:57:09,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-05-04 01:57:09,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-05-04 01:57:09,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:09,178 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:57:09,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 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 01:57:09,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:09,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:09,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:09,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:09,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:09,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 01:57:09,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-05-04 01:57:09,296 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 01:57:09,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:57:09,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1714988692, now seen corresponding path program 1 times [2023-05-04 01:57:09,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:57:09,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181991513] [2023-05-04 01:57:09,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:57:09,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:57:09,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:57:09,379 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 01:57:09,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:57:09,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181991513] [2023-05-04 01:57:09,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181991513] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 01:57:09,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 01:57:09,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-05-04 01:57:09,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572047245] [2023-05-04 01:57:09,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 01:57:09,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-05-04 01:57:09,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:57:09,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-05-04 01:57:09,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-05-04 01:57:09,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:09,382 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:57:09,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 01:57:09,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:09,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:09,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-04 01:57:09,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:09,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:09,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:09,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 01:57:09,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:57:09,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-05-04 01:57:09,558 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 01:57:09,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:57:09,559 INFO L85 PathProgramCache]: Analyzing trace with hash 430894543, now seen corresponding path program 1 times [2023-05-04 01:57:09,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:57:09,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667095900] [2023-05-04 01:57:09,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:57:09,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:57:09,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:57:10,044 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-04 01:57:10,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:57:10,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667095900] [2023-05-04 01:57:10,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667095900] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 01:57:10,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 01:57:10,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-05-04 01:57:10,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959450846] [2023-05-04 01:57:10,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 01:57:10,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-05-04 01:57:10,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:57:10,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-05-04 01:57:10,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-05-04 01:57:10,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:10,069 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:57:10,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.833333333333334) internal successors, (142), 12 states have internal predecessors, (142), 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 01:57:10,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:10,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:10,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-04 01:57:10,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:57:10,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:10,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:10,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:10,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 01:57:10,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:57:10,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-05-04 01:57:10,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-05-04 01:57:10,451 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 01:57:10,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:57:10,452 INFO L85 PathProgramCache]: Analyzing trace with hash 703025218, now seen corresponding path program 1 times [2023-05-04 01:57:10,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:57:10,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801257688] [2023-05-04 01:57:10,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:57:10,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:57:10,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:57:10,614 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 23 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 01:57:10,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:57:10,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801257688] [2023-05-04 01:57:10,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801257688] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 01:57:10,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971304408] [2023-05-04 01:57:10,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:57:10,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 01:57:10,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 01:57:10,617 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 01:57:10,636 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 01:57:10,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:57:10,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 2 conjunts are in the unsatisfiable core [2023-05-04 01:57:10,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 01:57:10,859 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-05-04 01:57:10,859 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-04 01:57:10,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971304408] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 01:57:10,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-05-04 01:57:10,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2023-05-04 01:57:10,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328355252] [2023-05-04 01:57:10,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 01:57:10,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 01:57:10,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:57:10,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 01:57:10,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-05-04 01:57:10,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:10,861 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:57:10,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 01:57:10,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:10,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:10,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-04 01:57:10,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:57:10,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-05-04 01:57:10,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:10,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:10,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:10,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 01:57:10,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:57:10,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-05-04 01:57:10,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:10,952 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-05-04 01:57:11,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 01:57:11,139 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 01:57:11,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:57:11,139 INFO L85 PathProgramCache]: Analyzing trace with hash 495463610, now seen corresponding path program 1 times [2023-05-04 01:57:11,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:57:11,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756083512] [2023-05-04 01:57:11,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:57:11,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:57:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:57:11,319 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 23 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 01:57:11,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:57:11,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756083512] [2023-05-04 01:57:11,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756083512] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 01:57:11,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1376648524] [2023-05-04 01:57:11,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:57:11,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 01:57:11,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 01:57:11,322 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 01:57:11,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-05-04 01:57:11,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:57:11,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 3 conjunts are in the unsatisfiable core [2023-05-04 01:57:11,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 01:57:11,631 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 01:57:11,631 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-04 01:57:11,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1376648524] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 01:57:11,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-05-04 01:57:11,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-05-04 01:57:11,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145302261] [2023-05-04 01:57:11,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 01:57:11,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-05-04 01:57:11,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:57:11,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-05-04 01:57:11,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-05-04 01:57:11,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:11,633 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:57:11,634 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 01:57:11,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:11,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:11,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-04 01:57:11,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:57:11,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-05-04 01:57:11,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:11,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:11,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:11,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:11,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 01:57:11,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:57:11,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-05-04 01:57:11,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:11,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:57:11,936 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-05-04 01:57:12,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-05-04 01:57:12,092 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 01:57:12,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:57:12,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1128319195, now seen corresponding path program 1 times [2023-05-04 01:57:12,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:57:12,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505942931] [2023-05-04 01:57:12,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:57:12,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:57:12,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:57:12,245 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 23 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 01:57:12,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:57:12,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505942931] [2023-05-04 01:57:12,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505942931] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 01:57:12,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845598670] [2023-05-04 01:57:12,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:57:12,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 01:57:12,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 01:57:12,248 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 01:57:12,270 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 01:57:12,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:57:12,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 3 conjunts are in the unsatisfiable core [2023-05-04 01:57:12,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 01:57:12,568 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 23 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 01:57:12,568 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 01:57:12,731 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 23 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 01:57:12,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845598670] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 01:57:12,731 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 01:57:12,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-05-04 01:57:12,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109638938] [2023-05-04 01:57:12,732 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 01:57:12,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-05-04 01:57:12,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:57:12,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-05-04 01:57:12,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-05-04 01:57:12,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:12,733 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:57:12,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 46.285714285714285) internal successors, (324), 7 states have internal predecessors, (324), 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 01:57:12,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:12,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:12,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-04 01:57:12,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:57:12,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-05-04 01:57:12,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:12,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:57:12,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:12,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:12,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:12,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 01:57:12,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:57:12,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-05-04 01:57:12,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:12,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:57:12,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 01:57:12,868 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 01:57:13,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-05-04 01:57:13,068 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 01:57:13,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:57:13,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1370923181, now seen corresponding path program 1 times [2023-05-04 01:57:13,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:57:13,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428376203] [2023-05-04 01:57:13,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:57:13,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:57:13,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:57:13,340 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 24 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 01:57:13,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:57:13,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428376203] [2023-05-04 01:57:13,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428376203] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 01:57:13,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499028335] [2023-05-04 01:57:13,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:57:13,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 01:57:13,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 01:57:13,343 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 01:57:13,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-05-04 01:57:13,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:57:13,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 7 conjunts are in the unsatisfiable core [2023-05-04 01:57:13,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 01:57:13,699 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 38 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 01:57:13,700 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 01:57:13,981 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 38 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 01:57:13,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [499028335] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 01:57:13,981 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 01:57:13,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 19 [2023-05-04 01:57:13,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724130080] [2023-05-04 01:57:13,982 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 01:57:13,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-05-04 01:57:13,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:57:13,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-05-04 01:57:13,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2023-05-04 01:57:13,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:13,984 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:57:13,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 18.789473684210527) internal successors, (357), 19 states have internal predecessors, (357), 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 01:57:13,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:13,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:13,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-04 01:57:13,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:57:13,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-05-04 01:57:13,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:13,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:57:13,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 01:57:13,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:14,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:14,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:14,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 01:57:14,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:57:14,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-05-04 01:57:14,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:14,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:57:14,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 01:57:14,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-05-04 01:57:14,651 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-05-04 01:57:14,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 01:57:14,839 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 01:57:14,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:57:14,840 INFO L85 PathProgramCache]: Analyzing trace with hash -594134643, now seen corresponding path program 1 times [2023-05-04 01:57:14,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:57:14,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998976876] [2023-05-04 01:57:14,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:57:14,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:57:14,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-05-04 01:57:14,945 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-05-04 01:57:15,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-05-04 01:57:15,050 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-05-04 01:57:15,050 INFO L359 BasicCegarLoop]: Counterexample is feasible [2023-05-04 01:57:15,050 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-05-04 01:57:15,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-05-04 01:57:15,052 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-05-04 01:57:15,052 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (1/3) [2023-05-04 01:57:15,052 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-05-04 01:57:15,054 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-05-04 01:57:15,117 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-05-04 01:57:15,120 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 01:57:15,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 01:57:15,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 01:57:15,122 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-05-04 01:57:15,125 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (9)] Waiting until timeout for monitored process [2023-05-04 01:57:15,126 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 01:57:15,133 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread3of3ForFork0 ======== [2023-05-04 01:57:15,134 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;@c3ec756, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 01:57:15,134 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-04 01:57:15,371 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 01:57:15,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:57:15,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1771111745, now seen corresponding path program 1 times [2023-05-04 01:57:15,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:57:15,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36137621] [2023-05-04 01:57:15,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:57:15,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:57:15,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:57:15,511 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-05-04 01:57:15,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:57:15,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36137621] [2023-05-04 01:57:15,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36137621] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 01:57:15,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 01:57:15,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-05-04 01:57:15,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762350075] [2023-05-04 01:57:15,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 01:57:15,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-05-04 01:57:15,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:57:15,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-05-04 01:57:15,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-05-04 01:57:15,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:15,513 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:57:15,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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 01:57:15,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:16,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:57:16,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-05-04 01:57:16,038 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 01:57:16,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:57:16,038 INFO L85 PathProgramCache]: Analyzing trace with hash 2076377537, now seen corresponding path program 1 times [2023-05-04 01:57:16,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:57:16,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017407595] [2023-05-04 01:57:16,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:57:16,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:57:16,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:57:16,235 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 37 proven. 21 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-05-04 01:57:16,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:57:16,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017407595] [2023-05-04 01:57:16,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017407595] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 01:57:16,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008256783] [2023-05-04 01:57:16,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:57:16,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 01:57:16,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 01:57:16,246 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 01:57:16,269 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 01:57:16,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:57:16,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 847 conjuncts, 2 conjunts are in the unsatisfiable core [2023-05-04 01:57:16,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 01:57:16,639 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-05-04 01:57:16,639 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-04 01:57:16,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1008256783] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 01:57:16,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-05-04 01:57:16,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2023-05-04 01:57:16,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846748277] [2023-05-04 01:57:16,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 01:57:16,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 01:57:16,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:57:16,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 01:57:16,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-05-04 01:57:16,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:16,641 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:57:16,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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 01:57:16,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:57:16,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:16,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:57:16,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:16,759 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-05-04 01:57:16,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 01:57:16,949 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 01:57:16,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:57:16,950 INFO L85 PathProgramCache]: Analyzing trace with hash -252083667, now seen corresponding path program 1 times [2023-05-04 01:57:16,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:57:16,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270236479] [2023-05-04 01:57:16,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:57:16,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:57:16,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:57:17,110 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 37 proven. 21 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-05-04 01:57:17,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:57:17,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270236479] [2023-05-04 01:57:17,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270236479] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 01:57:17,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1677604219] [2023-05-04 01:57:17,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:57:17,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 01:57:17,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 01:57:17,112 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 01:57:17,135 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 01:57:17,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:57:17,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 843 conjuncts, 3 conjunts are in the unsatisfiable core [2023-05-04 01:57:17,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 01:57:17,465 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-05-04 01:57:17,465 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-04 01:57:17,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1677604219] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 01:57:17,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-05-04 01:57:17,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-05-04 01:57:17,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317042578] [2023-05-04 01:57:17,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 01:57:17,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-05-04 01:57:17,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:57:17,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-05-04 01:57:17,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-05-04 01:57:17,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:17,467 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:57:17,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 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 01:57:17,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:57:17,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:17,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:17,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:57:17,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:17,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:57:17,576 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 01:57:17,761 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,SelfDestructingSolverStorable20 [2023-05-04 01:57:17,761 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 01:57:17,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:57:17,762 INFO L85 PathProgramCache]: Analyzing trace with hash -448588343, now seen corresponding path program 1 times [2023-05-04 01:57:17,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:57:17,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200295908] [2023-05-04 01:57:17,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:57:17,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:57:17,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:57:17,963 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 37 proven. 21 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-05-04 01:57:17,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:57:17,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200295908] [2023-05-04 01:57:17,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200295908] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 01:57:17,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084957028] [2023-05-04 01:57:17,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:57:17,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 01:57:17,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 01:57:17,966 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 01:57:17,982 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 01:57:18,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:57:18,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 837 conjuncts, 3 conjunts are in the unsatisfiable core [2023-05-04 01:57:18,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 01:57:18,386 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 37 proven. 21 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-05-04 01:57:18,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 01:57:18,524 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 37 proven. 21 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-05-04 01:57:18,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1084957028] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 01:57:18,524 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 01:57:18,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-05-04 01:57:18,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583043919] [2023-05-04 01:57:18,524 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 01:57:18,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-05-04 01:57:18,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:57:18,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-05-04 01:57:18,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-05-04 01:57:18,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:18,528 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:57:18,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 53.857142857142854) internal successors, (377), 7 states have internal predecessors, (377), 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 01:57:18,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:57:18,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:18,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:57:18,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:18,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:57:18,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:18,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:57:18,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 01:57:18,718 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 01:57:18,908 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,SelfDestructingSolverStorable21 [2023-05-04 01:57:18,908 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 01:57:18,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:57:18,909 INFO L85 PathProgramCache]: Analyzing trace with hash -2082381173, now seen corresponding path program 1 times [2023-05-04 01:57:18,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:57:18,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985545799] [2023-05-04 01:57:18,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:57:18,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:57:18,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:57:19,264 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-05-04 01:57:19,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:57:19,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985545799] [2023-05-04 01:57:19,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985545799] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 01:57:19,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 01:57:19,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-05-04 01:57:19,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932737902] [2023-05-04 01:57:19,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 01:57:19,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-05-04 01:57:19,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:57:19,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-05-04 01:57:19,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-05-04 01:57:19,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:19,266 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:57:19,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 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 01:57:19,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:57:19,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:19,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:57:19,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 01:57:19,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:19,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:57:19,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:19,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:57:19,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 01:57:19,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:57:19,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-05-04 01:57:19,506 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 01:57:19,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:57:19,506 INFO L85 PathProgramCache]: Analyzing trace with hash 901234425, now seen corresponding path program 1 times [2023-05-04 01:57:19,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:57:19,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737369674] [2023-05-04 01:57:19,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:57:19,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:57:19,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:57:19,811 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 71 proven. 36 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-05-04 01:57:19,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:57:19,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737369674] [2023-05-04 01:57:19,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737369674] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 01:57:19,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91065586] [2023-05-04 01:57:19,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:57:19,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 01:57:19,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 01:57:19,813 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 01:57:19,839 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 01:57:20,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:57:20,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 4 conjunts are in the unsatisfiable core [2023-05-04 01:57:20,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 01:57:20,189 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-05-04 01:57:20,189 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-04 01:57:20,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91065586] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 01:57:20,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-05-04 01:57:20,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 11 [2023-05-04 01:57:20,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039713310] [2023-05-04 01:57:20,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 01:57:20,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-05-04 01:57:20,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:57:20,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-05-04 01:57:20,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-05-04 01:57:20,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:20,191 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:57:20,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 50.2) internal successors, (251), 5 states have internal predecessors, (251), 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 01:57:20,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:57:20,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:20,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:57:20,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 01:57:20,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:57:20,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:20,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:57:20,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:20,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:57:20,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 01:57:20,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:57:20,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:57:20,317 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 01:57:20,517 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,SelfDestructingSolverStorable23 [2023-05-04 01:57:20,517 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 01:57:20,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:57:20,518 INFO L85 PathProgramCache]: Analyzing trace with hash 351817949, now seen corresponding path program 1 times [2023-05-04 01:57:20,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:57:20,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706298917] [2023-05-04 01:57:20,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:57:20,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:57:20,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:57:20,764 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-05-04 01:57:20,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:57:20,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706298917] [2023-05-04 01:57:20,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706298917] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 01:57:20,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 01:57:20,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-05-04 01:57:20,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909463582] [2023-05-04 01:57:20,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 01:57:20,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-05-04 01:57:20,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:57:20,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-05-04 01:57:20,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-05-04 01:57:20,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:20,766 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:57:20,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.4) internal successors, (212), 5 states have internal predecessors, (212), 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 01:57:20,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:57:20,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:20,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:57:20,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 01:57:20,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:57:20,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:57:20,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:20,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:57:20,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:20,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:57:20,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 01:57:20,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:57:20,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:57:20,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 01:57:20,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-05-04 01:57:20,909 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 01:57:20,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:57:20,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1625339563, now seen corresponding path program 1 times [2023-05-04 01:57:20,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:57:20,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138000950] [2023-05-04 01:57:20,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:57:20,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:57:20,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:57:21,205 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-05-04 01:57:21,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:57:21,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138000950] [2023-05-04 01:57:21,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138000950] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 01:57:21,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 01:57:21,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-05-04 01:57:21,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067584838] [2023-05-04 01:57:21,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 01:57:21,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-05-04 01:57:21,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:57:21,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-05-04 01:57:21,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-05-04 01:57:21,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:21,207 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:57:21,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 43.75) internal successors, (175), 5 states have internal predecessors, (175), 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 01:57:21,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:57:21,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:21,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:57:21,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 01:57:21,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:57:21,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:57:21,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 01:57:21,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:21,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:57:21,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:21,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:57:21,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 01:57:21,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:57:21,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:57:21,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:57:21,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:57:21,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-05-04 01:57:21,582 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 01:57:21,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:57:21,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1597413896, now seen corresponding path program 1 times [2023-05-04 01:57:21,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:57:21,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165636827] [2023-05-04 01:57:21,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:57:21,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:57:21,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:57:21,886 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 399 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2023-05-04 01:57:21,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:57:21,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165636827] [2023-05-04 01:57:21,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165636827] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 01:57:21,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 01:57:21,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-05-04 01:57:21,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835939621] [2023-05-04 01:57:21,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 01:57:21,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-05-04 01:57:21,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:57:21,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-05-04 01:57:21,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-05-04 01:57:21,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:21,888 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:57:21,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.833333333333336) internal successors, (299), 6 states have internal predecessors, (299), 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 01:57:21,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:57:21,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:21,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:57:21,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 01:57:21,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:57:21,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:57:21,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:57:21,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:57:21,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:22,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:57:22,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:22,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:57:22,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 01:57:22,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:57:22,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:57:22,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:57:22,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:57:22,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:57:22,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-05-04 01:57:22,160 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 01:57:22,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:57:22,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1077764019, now seen corresponding path program 1 times [2023-05-04 01:57:22,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:57:22,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237106492] [2023-05-04 01:57:22,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:57:22,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:57:22,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:57:22,461 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 305 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2023-05-04 01:57:22,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:57:22,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237106492] [2023-05-04 01:57:22,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237106492] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 01:57:22,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 01:57:22,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-05-04 01:57:22,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209112892] [2023-05-04 01:57:22,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 01:57:22,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-05-04 01:57:22,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:57:22,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-05-04 01:57:22,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-05-04 01:57:22,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:22,463 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:57:22,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 6 states have internal predecessors, (265), 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 01:57:22,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:57:22,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:22,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:57:22,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 01:57:22,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:57:22,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:57:22,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:57:22,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:57:22,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:57:22,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:22,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:57:22,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:22,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:57:22,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 01:57:22,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:57:22,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:57:22,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:57:22,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:57:22,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:57:22,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:57:22,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-05-04 01:57:22,702 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 01:57:22,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:57:22,702 INFO L85 PathProgramCache]: Analyzing trace with hash 850932270, now seen corresponding path program 2 times [2023-05-04 01:57:22,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:57:22,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951307190] [2023-05-04 01:57:22,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:57:22,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:57:22,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:57:23,025 INFO L134 CoverageAnalysis]: Checked inductivity of 658 backedges. 234 proven. 0 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2023-05-04 01:57:23,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:57:23,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951307190] [2023-05-04 01:57:23,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951307190] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 01:57:23,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 01:57:23,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-05-04 01:57:23,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681011159] [2023-05-04 01:57:23,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 01:57:23,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-05-04 01:57:23,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:57:23,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-05-04 01:57:23,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-05-04 01:57:23,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:57:23,028 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:57:23,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 42.833333333333336) internal successors, (257), 6 states have internal predecessors, (257), 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 01:57:23,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:57:23,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:57:23,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:57:23,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 01:57:23,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:57:23,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:57:23,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:57:23,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:57:23,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:57:23,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:57:23,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:58:16,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:58:16,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:58:16,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:58:16,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 01:58:16,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:58:16,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:58:16,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:58:16,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:58:16,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:58:16,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:58:16,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:58:16,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-05-04 01:58:16,041 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 01:58:16,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:58:16,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1152175538, now seen corresponding path program 1 times [2023-05-04 01:58:16,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:58:16,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705014298] [2023-05-04 01:58:16,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:58:16,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:58:16,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:58:17,266 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 662 proven. 101 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-05-04 01:58:17,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:58:17,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705014298] [2023-05-04 01:58:17,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705014298] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 01:58:17,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172371423] [2023-05-04 01:58:17,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:58:17,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 01:58:17,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 01:58:17,269 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 01:58:17,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-05-04 01:58:17,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:58:17,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 1634 conjuncts, 7 conjunts are in the unsatisfiable core [2023-05-04 01:58:17,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 01:58:18,067 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 279 proven. 9 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2023-05-04 01:58:18,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 01:58:18,299 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 279 proven. 9 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2023-05-04 01:58:18,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1172371423] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 01:58:18,299 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 01:58:18,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 8, 8] total 27 [2023-05-04 01:58:18,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107141769] [2023-05-04 01:58:18,300 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 01:58:18,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-05-04 01:58:18,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:58:18,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-05-04 01:58:18,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=579, Unknown=0, NotChecked=0, Total=702 [2023-05-04 01:58:18,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:58:18,302 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:58:18,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 27.444444444444443) internal successors, (741), 27 states have internal predecessors, (741), 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 01:58:18,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:58:18,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:58:18,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:58:18,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 01:58:18,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:58:18,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:58:18,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:58:18,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:58:18,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:58:18,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:58:18,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:58:18,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:58:19,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:58:19,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:58:19,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:58:19,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 01:58:19,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:58:19,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:58:19,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:58:19,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:58:19,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:58:19,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:58:19,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:58:19,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-05-04 01:58:19,671 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-05-04 01:58:19,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 01:58:19,850 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 01:58:19,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:58:19,850 INFO L85 PathProgramCache]: Analyzing trace with hash 77843150, now seen corresponding path program 1 times [2023-05-04 01:58:19,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:58:19,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669597865] [2023-05-04 01:58:19,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:58:19,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:58:19,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:58:21,417 INFO L134 CoverageAnalysis]: Checked inductivity of 1148 backedges. 37 proven. 31 refuted. 0 times theorem prover too weak. 1080 trivial. 0 not checked. [2023-05-04 01:58:21,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:58:21,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669597865] [2023-05-04 01:58:21,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669597865] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 01:58:21,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1472648962] [2023-05-04 01:58:21,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:58:21,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 01:58:21,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 01:58:21,421 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 01:58:21,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-05-04 01:58:21,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:58:21,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 2040 conjuncts, 8 conjunts are in the unsatisfiable core [2023-05-04 01:58:21,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 01:58:22,244 INFO L134 CoverageAnalysis]: Checked inductivity of 1148 backedges. 193 proven. 0 refuted. 0 times theorem prover too weak. 955 trivial. 0 not checked. [2023-05-04 01:58:22,245 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-04 01:58:22,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1472648962] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 01:58:22,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-05-04 01:58:22,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [12] total 19 [2023-05-04 01:58:22,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133405095] [2023-05-04 01:58:22,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 01:58:22,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-05-04 01:58:22,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:58:22,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-05-04 01:58:22,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2023-05-04 01:58:22,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:58:22,249 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:58:22,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 29.666666666666668) internal successors, (267), 9 states have internal predecessors, (267), 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 01:58:22,249 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:58:22,249 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:58:22,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:58:22,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 01:58:22,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:58:22,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:58:22,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:58:22,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:58:22,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:58:22,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:58:22,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:58:22,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-05-04 01:58:22,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:58:22,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:58:22,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:58:22,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:58:22,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 01:58:22,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:58:22,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:58:22,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:58:22,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:58:22,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:58:22,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:58:22,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:58:22,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-05-04 01:58:22,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-05-04 01:58:22,550 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-05-04 01:58:22,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 01:58:22,738 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 01:58:22,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:58:22,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1258032533, now seen corresponding path program 1 times [2023-05-04 01:58:22,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:58:22,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795884571] [2023-05-04 01:58:22,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:58:22,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:58:22,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:58:23,956 INFO L134 CoverageAnalysis]: Checked inductivity of 1109 backedges. 15 proven. 38 refuted. 0 times theorem prover too weak. 1056 trivial. 0 not checked. [2023-05-04 01:58:23,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:58:23,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795884571] [2023-05-04 01:58:23,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795884571] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 01:58:23,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507980393] [2023-05-04 01:58:23,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:58:23,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 01:58:23,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 01:58:23,965 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 01:58:23,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-05-04 01:58:24,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:58:24,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 1699 conjuncts, 24 conjunts are in the unsatisfiable core [2023-05-04 01:58:24,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 01:58:24,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1109 backedges. 31 proven. 37 refuted. 0 times theorem prover too weak. 1041 trivial. 0 not checked. [2023-05-04 01:58:24,844 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 01:58:25,321 INFO L134 CoverageAnalysis]: Checked inductivity of 1109 backedges. 41 proven. 27 refuted. 0 times theorem prover too weak. 1041 trivial. 0 not checked. [2023-05-04 01:58:25,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1507980393] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 01:58:25,321 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 01:58:25,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15, 15] total 36 [2023-05-04 01:58:25,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491695798] [2023-05-04 01:58:25,322 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 01:58:25,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-05-04 01:58:25,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:58:25,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-05-04 01:58:25,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=1115, Unknown=0, NotChecked=0, Total=1260 [2023-05-04 01:58:25,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:58:25,326 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:58:25,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 14.777777777777779) internal successors, (532), 36 states have internal predecessors, (532), 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 01:58:25,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:58:25,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:58:25,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:58:25,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 01:58:25,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:58:25,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:58:25,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:58:25,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:58:25,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:58:25,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:58:25,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:58:25,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-05-04 01:58:25,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-05-04 01:58:25,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:59:38,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:59:38,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:59:38,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:59:38,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 01:59:38,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:59:38,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:59:38,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:59:38,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:59:38,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:59:38,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:59:38,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:59:38,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-05-04 01:59:38,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-05-04 01:59:38,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2023-05-04 01:59:38,125 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-05-04 01:59:38,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 01:59:38,309 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 01:59:38,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:59:38,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1708199927, now seen corresponding path program 1 times [2023-05-04 01:59:38,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:59:38,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599947655] [2023-05-04 01:59:38,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:59:38,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:59:38,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:59:39,276 INFO L134 CoverageAnalysis]: Checked inductivity of 608 backedges. 526 proven. 76 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-05-04 01:59:39,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:59:39,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599947655] [2023-05-04 01:59:39,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599947655] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 01:59:39,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500231672] [2023-05-04 01:59:39,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:59:39,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 01:59:39,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 01:59:39,279 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 01:59:39,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-05-04 01:59:39,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:59:39,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 1613 conjuncts, 10 conjunts are in the unsatisfiable core [2023-05-04 01:59:39,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 01:59:40,085 INFO L134 CoverageAnalysis]: Checked inductivity of 608 backedges. 491 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2023-05-04 01:59:40,086 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-04 01:59:40,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500231672] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 01:59:40,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-05-04 01:59:40,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [14] total 19 [2023-05-04 01:59:40,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017156376] [2023-05-04 01:59:40,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 01:59:40,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-05-04 01:59:40,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:59:40,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-05-04 01:59:40,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2023-05-04 01:59:40,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:59:40,088 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:59:40,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 34.36363636363637) internal successors, (378), 11 states have internal predecessors, (378), 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 01:59:40,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:59:40,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:59:40,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 01:59:40,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 01:59:40,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:59:40,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 01:59:40,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:59:40,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:59:40,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:59:40,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:59:40,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:59:40,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2023-05-04 01:59:40,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-05-04 01:59:40,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2023-05-04 01:59:40,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.