/usr/bin/java -Xmx7000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.prune.known.deadend.states.from.previous.iterations false -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-complex/bounded_buffer.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dynamic-abstractions-e2ee32c-m [2023-09-07 09:02:10,930 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-09-07 09:02:10,992 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2023-09-07 09:02:10,995 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-09-07 09:02:10,996 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-09-07 09:02:10,996 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-09-07 09:02:11,019 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-07 09:02:11,019 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-07 09:02:11,020 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-07 09:02:11,023 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-07 09:02:11,023 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-07 09:02:11,023 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-07 09:02:11,024 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-09-07 09:02:11,025 INFO L153 SettingsManager]: * Use SBE=true [2023-09-07 09:02:11,025 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-07 09:02:11,025 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-07 09:02:11,025 INFO L153 SettingsManager]: * sizeof long=4 [2023-09-07 09:02:11,025 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-07 09:02:11,025 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-09-07 09:02:11,026 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-09-07 09:02:11,026 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-07 09:02:11,026 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-07 09:02:11,026 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-07 09:02:11,026 INFO L153 SettingsManager]: * sizeof long double=12 [2023-09-07 09:02:11,026 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-09-07 09:02:11,027 INFO L153 SettingsManager]: * Use constant arrays=true [2023-09-07 09:02:11,027 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-07 09:02:11,027 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-07 09:02:11,027 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-09-07 09:02:11,028 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-07 09:02:11,028 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-07 09:02:11,029 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-07 09:02:11,029 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-07 09:02:11,029 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-07 09:02:11,029 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-07 09:02:11,029 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-07 09:02:11,029 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-09-07 09:02:11,029 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-09-07 09:02:11,029 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-07 09:02:11,030 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2023-09-07 09:02:11,030 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2023-09-07 09:02:11,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-07 09:02:11,232 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-07 09:02:11,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-07 09:02:11,235 INFO L270 PluginConnector]: Initializing CDTParser... [2023-09-07 09:02:11,235 INFO L274 PluginConnector]: CDTParser initialized [2023-09-07 09:02:11,236 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-complex/bounded_buffer.i [2023-09-07 09:02:12,330 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-09-07 09:02:12,634 INFO L384 CDTParser]: Found 1 translation units. [2023-09-07 09:02:12,634 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/bounded_buffer.i [2023-09-07 09:02:12,661 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f94199ec/1babe3808b96486d8c4c362ebee0ca25/FLAG48d99c151 [2023-09-07 09:02:12,671 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f94199ec/1babe3808b96486d8c4c362ebee0ca25 [2023-09-07 09:02:12,673 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-07 09:02:12,674 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-09-07 09:02:12,676 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-07 09:02:12,676 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-07 09:02:12,679 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-07 09:02:12,680 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 09:02:12" (1/1) ... [2023-09-07 09:02:12,680 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b7acdd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 09:02:12, skipping insertion in model container [2023-09-07 09:02:12,680 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 09:02:12" (1/1) ... [2023-09-07 09:02:12,733 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-09-07 09:02:13,155 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/bounded_buffer.i[70002,70015] [2023-09-07 09:02:13,177 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-07 09:02:13,188 INFO L202 MainTranslator]: Completed pre-run [2023-09-07 09:02:13,197 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [126] [2023-09-07 09:02:13,222 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [572] [2023-09-07 09:02:13,222 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [573] [2023-09-07 09:02:13,259 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/bounded_buffer.i[70002,70015] [2023-09-07 09:02:13,299 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-07 09:02:13,370 WARN L669 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-09-07 09:02:13,375 INFO L206 MainTranslator]: Completed translation [2023-09-07 09:02:13,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 09:02:13 WrapperNode [2023-09-07 09:02:13,387 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-07 09:02:13,389 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-07 09:02:13,389 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-07 09:02:13,389 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-07 09:02:13,400 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 09:02:13" (1/1) ... [2023-09-07 09:02:13,441 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 09:02:13" (1/1) ... [2023-09-07 09:02:13,495 INFO L138 Inliner]: procedures = 428, calls = 126, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 459 [2023-09-07 09:02:13,496 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-07 09:02:13,496 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-07 09:02:13,496 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-07 09:02:13,496 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-09-07 09:02:13,503 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 09:02:13" (1/1) ... [2023-09-07 09:02:13,504 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 09:02:13" (1/1) ... [2023-09-07 09:02:13,508 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 09:02:13" (1/1) ... [2023-09-07 09:02:13,508 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 09:02:13" (1/1) ... [2023-09-07 09:02:13,549 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 09:02:13" (1/1) ... [2023-09-07 09:02:13,553 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 09:02:13" (1/1) ... [2023-09-07 09:02:13,555 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 09:02:13" (1/1) ... [2023-09-07 09:02:13,556 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 09:02:13" (1/1) ... [2023-09-07 09:02:13,580 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-07 09:02:13,581 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-07 09:02:13,581 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-09-07 09:02:13,581 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-09-07 09:02:13,582 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 09:02:13" (1/1) ... [2023-09-07 09:02:13,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-07 09:02:13,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 09:02:13,648 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-09-07 09:02:13,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-09-07 09:02:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure producer_routine [2023-09-07 09:02:13,696 INFO L138 BoogieDeclarations]: Found implementation of procedure producer_routine [2023-09-07 09:02:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-07 09:02:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-07 09:02:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-07 09:02:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-09-07 09:02:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-09-07 09:02:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-07 09:02:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-09-07 09:02:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-07 09:02:13,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-07 09:02:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-07 09:02:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-09-07 09:02:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure consumer_routine [2023-09-07 09:02:13,699 INFO L138 BoogieDeclarations]: Found implementation of procedure consumer_routine [2023-09-07 09:02:13,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-07 09:02:13,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-07 09:02:13,700 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-07 09:02:13,956 INFO L236 CfgBuilder]: Building ICFG [2023-09-07 09:02:13,957 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-07 09:02:14,612 INFO L277 CfgBuilder]: Performing block encoding [2023-09-07 09:02:14,619 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-07 09:02:14,619 INFO L302 CfgBuilder]: Removed 11 assume(true) statements. [2023-09-07 09:02:14,621 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 09:02:14 BoogieIcfgContainer [2023-09-07 09:02:14,621 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-07 09:02:14,623 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-07 09:02:14,623 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-09-07 09:02:14,625 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-09-07 09:02:14,625 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 09:02:12" (1/3) ... [2023-09-07 09:02:14,625 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35a20006 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 09:02:14, skipping insertion in model container [2023-09-07 09:02:14,625 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 09:02:13" (2/3) ... [2023-09-07 09:02:14,625 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35a20006 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 09:02:14, skipping insertion in model container [2023-09-07 09:02:14,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 09:02:14" (3/3) ... [2023-09-07 09:02:14,626 INFO L112 eAbstractionObserver]: Analyzing ICFG bounded_buffer.i [2023-09-07 09:02:14,632 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-07 09:02:14,638 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-07 09:02:14,638 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-09-07 09:02:14,638 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-07 09:02:14,719 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-09-07 09:02:14,749 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 09:02:14,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-09-07 09:02:14,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 09:02:14,751 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-09-07 09:02:14,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-09-07 09:02:14,807 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-09-07 09:02:14,811 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == consumer_routineErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2023-09-07 09:02:14,815 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;@187659ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 09:02:14,815 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-07 09:02:14,819 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-09-07 09:02:14,821 INFO L805 garLoopResultBuilder]: Registering result SAFE for location consumer_routineErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-09-07 09:02:14,834 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-09-07 09:02:14,837 INFO L307 ceAbstractionStarter]: Result for error location consumer_routineErr0ASSERT_VIOLATIONERROR_FUNCTION was SAFE (1/4) [2023-09-07 09:02:14,873 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 09:02:14,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-09-07 09:02:14,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 09:02:14,890 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) [2023-09-07 09:02:14,895 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 [2023-09-07 09:02:14,905 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-09-07 09:02:14,917 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2023-09-07 09:02:14,918 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;@187659ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 09:02:14,918 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-07 09:02:14,950 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-07 09:02:14,962 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 09:02:14,962 INFO L85 PathProgramCache]: Analyzing trace with hash -798607502, now seen corresponding path program 1 times [2023-09-07 09:02:14,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 09:02:14,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048551218] [2023-09-07 09:02:14,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 09:02:14,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 09:02:15,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 09:02:15,335 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-09-07 09:02:15,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 09:02:15,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048551218] [2023-09-07 09:02:15,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048551218] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 09:02:15,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 09:02:15,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-09-07 09:02:15,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39864322] [2023-09-07 09:02:15,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 09:02:15,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-07 09:02:15,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 09:02:15,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-07 09:02:15,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-09-07 09:02:15,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 09:02:15,358 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 09:02:15,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 09:02:15,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 09:02:15,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 09:02:15,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-07 09:02:15,385 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-07 09:02:15,385 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 09:02:15,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1445979676, now seen corresponding path program 1 times [2023-09-07 09:02:15,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 09:02:15,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351089381] [2023-09-07 09:02:15,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 09:02:15,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 09:02:15,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 09:02:15,439 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-09-07 09:02:15,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 09:02:15,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351089381] [2023-09-07 09:02:15,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351089381] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 09:02:15,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 09:02:15,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-07 09:02:15,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545639517] [2023-09-07 09:02:15,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 09:02:15,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-07 09:02:15,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 09:02:15,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-07 09:02:15,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-07 09:02:15,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 09:02:15,442 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 09:02:15,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 09:02:15,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 09:02:15,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 09:02:15,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 09:02:15,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 09:02:15,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-07 09:02:15,467 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-07 09:02:15,468 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 09:02:15,468 INFO L85 PathProgramCache]: Analyzing trace with hash 406251590, now seen corresponding path program 1 times [2023-09-07 09:02:15,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 09:02:15,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682412670] [2023-09-07 09:02:15,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 09:02:15,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 09:02:15,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 09:02:15,728 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-09-07 09:02:15,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 09:02:15,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682412670] [2023-09-07 09:02:15,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682412670] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 09:02:15,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 09:02:15,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-09-07 09:02:15,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165466914] [2023-09-07 09:02:15,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 09:02:15,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-07 09:02:15,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 09:02:15,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-07 09:02:15,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-09-07 09:02:15,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 09:02:15,732 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 09:02:15,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 09:02:15,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 09:02:15,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 09:02:15,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 09:02:15,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 09:02:15,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 09:02:15,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 09:02:15,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-07 09:02:15,815 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-07 09:02:15,816 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 09:02:15,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1000241205, now seen corresponding path program 1 times [2023-09-07 09:02:15,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 09:02:15,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790105922] [2023-09-07 09:02:15,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 09:02:15,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 09:02:15,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-07 09:02:15,871 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-07 09:02:15,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-07 09:02:15,941 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-07 09:02:15,941 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-07 09:02:15,943 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-09-07 09:02:15,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-07 09:02:15,946 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-09-07 09:02:15,947 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was UNSAFE (2/4) [2023-09-07 09:02:15,947 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-09-07 09:02:15,947 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-09-07 09:02:16,052 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-09-07 09:02:16,057 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 09:02:16,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-09-07 09:02:16,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 09:02:16,060 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) [2023-09-07 09:02:16,089 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 [2023-09-07 09:02:16,091 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-09-07 09:02:16,091 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == consumer_routineErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2023-09-07 09:02:16,092 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;@187659ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 09:02:16,092 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-07 09:02:16,092 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-09-07 09:02:16,092 INFO L805 garLoopResultBuilder]: Registering result SAFE for location consumer_routineErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-09-07 09:02:16,093 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-09-07 09:02:16,093 INFO L307 ceAbstractionStarter]: Result for error location consumer_routineErr0ASSERT_VIOLATIONERROR_FUNCTION was SAFE (1/5) [2023-09-07 09:02:16,102 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 09:02:16,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-09-07 09:02:16,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 09:02:16,113 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-09-07 09:02:16,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2023-09-07 09:02:16,117 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-09-07 09:02:16,118 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2023-09-07 09:02:16,118 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;@187659ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 09:02:16,118 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-07 09:02:16,139 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-07 09:02:16,140 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 09:02:16,140 INFO L85 PathProgramCache]: Analyzing trace with hash 195733630, now seen corresponding path program 1 times [2023-09-07 09:02:16,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 09:02:16,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065540851] [2023-09-07 09:02:16,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 09:02:16,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 09:02:16,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 09:02:16,312 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-09-07 09:02:16,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 09:02:16,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065540851] [2023-09-07 09:02:16,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065540851] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 09:02:16,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 09:02:16,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-09-07 09:02:16,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914853606] [2023-09-07 09:02:16,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 09:02:16,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-07 09:02:16,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 09:02:16,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-07 09:02:16,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-09-07 09:02:16,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 09:02:16,315 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 09:02:16,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 09:02:16,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 09:02:16,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 09:02:16,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-07 09:02:16,370 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-07 09:02:16,370 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 09:02:16,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1960805584, now seen corresponding path program 1 times [2023-09-07 09:02:16,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 09:02:16,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721367062] [2023-09-07 09:02:16,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 09:02:16,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 09:02:16,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 09:02:16,440 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-09-07 09:02:16,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 09:02:16,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721367062] [2023-09-07 09:02:16,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721367062] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 09:02:16,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 09:02:16,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-07 09:02:16,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268157053] [2023-09-07 09:02:16,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 09:02:16,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-07 09:02:16,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 09:02:16,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-07 09:02:16,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-07 09:02:16,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 09:02:16,441 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 09:02:16,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 09:02:16,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 09:02:16,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 09:02:16,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 09:02:16,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 09:02:16,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-09-07 09:02:16,484 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-07 09:02:16,484 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 09:02:16,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1597420434, now seen corresponding path program 1 times [2023-09-07 09:02:16,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 09:02:16,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043869643] [2023-09-07 09:02:16,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 09:02:16,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 09:02:16,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 09:02:16,685 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-09-07 09:02:16,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 09:02:16,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043869643] [2023-09-07 09:02:16,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043869643] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 09:02:16,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 09:02:16,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-09-07 09:02:16,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801316940] [2023-09-07 09:02:16,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 09:02:16,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-07 09:02:16,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 09:02:16,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-07 09:02:16,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-09-07 09:02:16,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 09:02:16,687 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 09:02:16,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 09:02:16,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 09:02:16,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 09:02:16,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 09:02:16,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 09:02:16,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 09:02:16,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 09:02:16,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-09-07 09:02:16,738 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-07 09:02:16,738 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 09:02:16,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1656561367, now seen corresponding path program 1 times [2023-09-07 09:02:16,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 09:02:16,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369931680] [2023-09-07 09:02:16,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 09:02:16,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 09:02:16,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 09:02:16,866 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 14 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 09:02:16,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 09:02:16,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369931680] [2023-09-07 09:02:16,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369931680] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 09:02:16,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983340608] [2023-09-07 09:02:16,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 09:02:16,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 09:02:16,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 09:02:16,893 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) [2023-09-07 09:02:16,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-09-07 09:02:17,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 09:02:17,153 INFO L262 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 6 conjunts are in the unsatisfiable core [2023-09-07 09:02:17,156 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 09:02:17,215 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 09:02:17,215 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-07 09:02:17,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1983340608] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 09:02:17,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-09-07 09:02:17,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 9 [2023-09-07 09:02:17,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520270707] [2023-09-07 09:02:17,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 09:02:17,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-07 09:02:17,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 09:02:17,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-07 09:02:17,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-09-07 09:02:17,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 09:02:17,217 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 09:02:17,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 09:02:17,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 09:02:17,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 09:02:17,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 09:02:17,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 09:03:09,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 09:03:09,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 09:03:09,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 09:03:09,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-09-07 09:03:09,795 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-09-07 09:03:09,804 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-09-07 09:03:09,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 09:03:09,997 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-09-07 09:03:09,998 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (2/5) [2023-09-07 09:03:10,003 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 09:03:10,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-09-07 09:03:10,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 09:03:10,021 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-09-07 09:03:10,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (7)] Waiting until timeout for monitored process [2023-09-07 09:03:10,030 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-09-07 09:03:10,030 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2023-09-07 09:03:10,030 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;@187659ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 09:03:10,030 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-07 09:03:57,661 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-07 09:03:57,662 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 09:03:57,662 INFO L85 PathProgramCache]: Analyzing trace with hash 303623101, now seen corresponding path program 1 times [2023-09-07 09:03:57,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 09:03:57,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834638422] [2023-09-07 09:03:57,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 09:03:57,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 09:03:57,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 09:03:57,757 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-09-07 09:03:57,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 09:03:57,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834638422] [2023-09-07 09:03:57,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834638422] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 09:03:57,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 09:03:57,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-09-07 09:03:57,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397513638] [2023-09-07 09:03:57,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 09:03:57,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-07 09:03:57,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 09:03:57,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-07 09:03:57,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-09-07 09:03:57,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 09:03:57,760 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 09:03:57,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 09:03:57,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 09:04:08,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 09:04:08,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-09-07 09:04:08,814 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-07 09:04:08,815 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 09:04:08,815 INFO L85 PathProgramCache]: Analyzing trace with hash -748035089, now seen corresponding path program 1 times [2023-09-07 09:04:08,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 09:04:08,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500575741] [2023-09-07 09:04:08,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 09:04:08,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 09:04:08,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 09:04:08,878 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-09-07 09:04:08,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 09:04:08,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500575741] [2023-09-07 09:04:08,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500575741] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 09:04:08,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 09:04:08,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-07 09:04:08,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76927558] [2023-09-07 09:04:08,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 09:04:08,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-07 09:04:08,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 09:04:08,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-07 09:04:08,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-07 09:04:08,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 09:04:08,879 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 09:04:08,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 09:04:08,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 09:04:08,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 09:04:11,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 09:04:11,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 09:04:11,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-09-07 09:04:11,451 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-07 09:04:11,451 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 09:04:11,451 INFO L85 PathProgramCache]: Analyzing trace with hash -994933295, now seen corresponding path program 1 times [2023-09-07 09:04:11,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 09:04:11,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160507250] [2023-09-07 09:04:11,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 09:04:11,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 09:04:11,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 09:04:11,642 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-09-07 09:04:11,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 09:04:11,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160507250] [2023-09-07 09:04:11,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160507250] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 09:04:11,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 09:04:11,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-09-07 09:04:11,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029575965] [2023-09-07 09:04:11,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 09:04:11,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-07 09:04:11,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 09:04:11,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-07 09:04:11,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-09-07 09:04:11,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 09:04:11,644 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 09:04:11,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 09:04:11,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 09:04:11,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 09:04:11,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 09:04:14,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 09:04:14,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 09:04:14,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 09:04:14,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-09-07 09:04:14,242 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-07 09:04:14,242 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 09:04:14,243 INFO L85 PathProgramCache]: Analyzing trace with hash 563262678, now seen corresponding path program 1 times [2023-09-07 09:04:14,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 09:04:14,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815062887] [2023-09-07 09:04:14,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 09:04:14,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 09:04:14,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 09:04:14,383 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 14 proven. 12 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-09-07 09:04:14,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 09:04:14,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815062887] [2023-09-07 09:04:14,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815062887] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 09:04:14,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780367464] [2023-09-07 09:04:14,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 09:04:14,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 09:04:14,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 09:04:14,415 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) [2023-09-07 09:04:14,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-09-07 09:04:14,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 09:04:14,669 INFO L262 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 6 conjunts are in the unsatisfiable core [2023-09-07 09:04:14,673 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 09:04:14,717 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-09-07 09:04:14,717 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-07 09:04:14,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1780367464] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 09:04:14,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-09-07 09:04:14,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 9 [2023-09-07 09:04:14,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346383681] [2023-09-07 09:04:14,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 09:04:14,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-07 09:04:14,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 09:04:14,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-07 09:04:14,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-09-07 09:04:14,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 09:04:14,719 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 09:04:14,719 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) [2023-09-07 09:04:14,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 09:04:14,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 09:04:14,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 09:04:14,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.