/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 false --traceabstraction.considered.threads.and.their.maximal.amount.of.steps X --traceabstraction.defines.what.statements.are.considered.a.step.in.por LOOP -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/29_conditionals_vs.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-218013a [2023-05-04 19:37:19,309 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2023-05-04 19:37:19,395 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-05-04 19:37:19,396 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-05-04 19:37:19,396 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-05-04 19:37:19,397 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-04 19:37:19,430 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-04 19:37:19,430 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-04 19:37:19,431 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-04 19:37:19,431 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-04 19:37:19,432 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-04 19:37:19,432 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-04 19:37:19,433 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-04 19:37:19,433 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-04 19:37:19,433 INFO L138 SettingsManager]: * Use SBE=true [2023-05-04 19:37:19,433 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-04 19:37:19,434 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-04 19:37:19,434 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-04 19:37:19,434 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-04 19:37:19,434 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-04 19:37:19,434 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-04 19:37:19,434 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-04 19:37:19,434 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-04 19:37:19,435 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-04 19:37:19,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-04 19:37:19,435 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-04 19:37:19,435 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-04 19:37:19,435 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-04 19:37:19,435 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-04 19:37:19,435 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-04 19:37:19,435 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-04 19:37:19,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 19:37:19,436 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-04 19:37:19,436 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-04 19:37:19,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-04 19:37:19,436 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-04 19:37:19,436 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-04 19:37:19,436 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-04 19:37:19,436 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-04 19:37:19,437 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-04 19:37:19,437 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-04 19:37:19,437 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-04 19:37:19,437 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Considered threads and their maximal amount of steps -> X Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Defines what statements are considered a step in POR -> LOOP [2023-05-04 19:37:19,666 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-04 19:37:19,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-04 19:37:19,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-04 19:37:19,698 INFO L271 PluginConnector]: Initializing CDTParser... [2023-05-04 19:37:19,698 INFO L275 PluginConnector]: CDTParser initialized [2023-05-04 19:37:19,699 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/29_conditionals_vs.i [2023-05-04 19:37:19,756 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a8a0c45c/b1ef7616d4a94c9482a483eea7e590b0/FLAG1e7fdc3da [2023-05-04 19:37:20,285 INFO L306 CDTParser]: Found 1 translation units. [2023-05-04 19:37:20,285 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/29_conditionals_vs.i [2023-05-04 19:37:20,303 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a8a0c45c/b1ef7616d4a94c9482a483eea7e590b0/FLAG1e7fdc3da [2023-05-04 19:37:20,727 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a8a0c45c/b1ef7616d4a94c9482a483eea7e590b0 [2023-05-04 19:37:20,730 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-04 19:37:20,732 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-05-04 19:37:20,733 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-05-04 19:37:20,733 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-05-04 19:37:20,736 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-05-04 19:37:20,736 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 07:37:20" (1/1) ... [2023-05-04 19:37:20,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@290ba1c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:37:20, skipping insertion in model container [2023-05-04 19:37:20,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 07:37:20" (1/1) ... [2023-05-04 19:37:20,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-05-04 19:37:20,785 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-05-04 19:37:21,043 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/29_conditionals_vs.i[30422,30435] [2023-05-04 19:37:21,050 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 19:37:21,056 INFO L203 MainTranslator]: Completed pre-run [2023-05-04 19:37:21,090 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/29_conditionals_vs.i[30422,30435] [2023-05-04 19:37:21,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 19:37:21,119 INFO L208 MainTranslator]: Completed translation [2023-05-04 19:37:21,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:37:21 WrapperNode [2023-05-04 19:37:21,120 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-05-04 19:37:21,120 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-04 19:37:21,121 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-04 19:37:21,121 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-04 19:37:21,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:37:21" (1/1) ... [2023-05-04 19:37:21,154 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:37:21" (1/1) ... [2023-05-04 19:37:21,176 INFO L138 Inliner]: procedures = 170, calls = 14, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 59 [2023-05-04 19:37:21,176 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-04 19:37:21,177 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-04 19:37:21,177 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-04 19:37:21,177 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-04 19:37:21,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:37:21" (1/1) ... [2023-05-04 19:37:21,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:37:21" (1/1) ... [2023-05-04 19:37:21,189 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:37:21" (1/1) ... [2023-05-04 19:37:21,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:37:21" (1/1) ... [2023-05-04 19:37:21,203 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:37:21" (1/1) ... [2023-05-04 19:37:21,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:37:21" (1/1) ... [2023-05-04 19:37:21,207 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:37:21" (1/1) ... [2023-05-04 19:37:21,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:37:21" (1/1) ... [2023-05-04 19:37:21,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-04 19:37:21,219 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-04 19:37:21,219 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-04 19:37:21,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-04 19:37:21,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:37:21" (1/1) ... [2023-05-04 19:37:21,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 19:37:21,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 19:37:21,250 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 19:37:21,265 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 19:37:21,297 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-05-04 19:37:21,297 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-05-04 19:37:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-05-04 19:37:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-05-04 19:37:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-05-04 19:37:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-05-04 19:37:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-05-04 19:37:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-04 19:37:21,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-04 19:37:21,300 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 19:37:21,393 INFO L235 CfgBuilder]: Building ICFG [2023-05-04 19:37:21,395 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-04 19:37:21,569 INFO L276 CfgBuilder]: Performing block encoding [2023-05-04 19:37:21,615 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-04 19:37:21,615 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-05-04 19:37:21,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 07:37:21 BoogieIcfgContainer [2023-05-04 19:37:21,618 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-04 19:37:21,621 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-04 19:37:21,621 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-04 19:37:21,624 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-04 19:37:21,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.05 07:37:20" (1/3) ... [2023-05-04 19:37:21,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19fe9d02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 07:37:21, skipping insertion in model container [2023-05-04 19:37:21,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:37:21" (2/3) ... [2023-05-04 19:37:21,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19fe9d02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 07:37:21, skipping insertion in model container [2023-05-04 19:37:21,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 07:37:21" (3/3) ... [2023-05-04 19:37:21,626 INFO L112 eAbstractionObserver]: Analyzing ICFG 29_conditionals_vs.i [2023-05-04 19:37:21,633 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-04 19:37:21,643 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-04 19:37:21,643 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-05-04 19:37:21,643 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-04 19:37:21,707 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-05-04 19:37:21,757 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 19:37:21,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 19:37:21,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 19:37:21,765 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 19:37:21,784 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 19:37:21,800 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 19:37:21,820 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ======== [2023-05-04 19:37:21,828 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;@2fb45b49, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 19:37:21,828 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-04 19:37:21,992 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 19:37:21,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 19:37:21,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1422106254, now seen corresponding path program 1 times [2023-05-04 19:37:22,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 19:37:22,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399132320] [2023-05-04 19:37:22,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 19:37:22,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 19:37:22,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 19:37:22,269 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 19:37:22,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 19:37:22,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399132320] [2023-05-04 19:37:22,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399132320] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 19:37:22,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 19:37:22,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 19:37:22,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696313192] [2023-05-04 19:37:22,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 19:37:22,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 19:37:22,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 19:37:22,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 19:37:22,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 19:37:22,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:22,300 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 19:37:22,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 19:37:22,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:22,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:22,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-05-04 19:37:22,377 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 19:37:22,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 19:37:22,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1422105231, now seen corresponding path program 1 times [2023-05-04 19:37:22,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 19:37:22,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347174280] [2023-05-04 19:37:22,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 19:37:22,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 19:37:22,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 19:37:22,508 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 19:37:22,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 19:37:22,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347174280] [2023-05-04 19:37:22,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347174280] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 19:37:22,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 19:37:22,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 19:37:22,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083433182] [2023-05-04 19:37:22,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 19:37:22,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 19:37:22,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 19:37:22,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 19:37:22,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 19:37:22,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:22,512 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 19:37:22,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 19:37:22,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:22,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:22,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:22,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:22,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-05-04 19:37:22,584 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 19:37:22,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 19:37:22,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1421152942, now seen corresponding path program 1 times [2023-05-04 19:37:22,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 19:37:22,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237969765] [2023-05-04 19:37:22,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 19:37:22,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 19:37:22,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 19:37:22,681 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 19:37:22,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 19:37:22,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237969765] [2023-05-04 19:37:22,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237969765] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 19:37:22,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 19:37:22,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 19:37:22,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414024195] [2023-05-04 19:37:22,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 19:37:22,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 19:37:22,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 19:37:22,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 19:37:22,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 19:37:22,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:22,687 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 19:37:22,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 19:37:22,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:22,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:22,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:22,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:22,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:22,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:22,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-05-04 19:37:22,730 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 19:37:22,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 19:37:22,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1421151919, now seen corresponding path program 1 times [2023-05-04 19:37:22,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 19:37:22,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362696007] [2023-05-04 19:37:22,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 19:37:22,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 19:37:22,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 19:37:22,781 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 19:37:22,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 19:37:22,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362696007] [2023-05-04 19:37:22,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362696007] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 19:37:22,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 19:37:22,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 19:37:22,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145215662] [2023-05-04 19:37:22,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 19:37:22,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 19:37:22,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 19:37:22,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 19:37:22,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 19:37:22,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:22,784 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 19:37:22,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 19:37:22,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:22,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:22,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:22,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:22,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:22,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:22,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:22,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:22,853 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-05-04 19:37:22,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-05-04 19:37:22,863 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-05-04 19:37:22,864 INFO L307 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork0 was SAFE (1/2) [2023-05-04 19:37:22,868 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 19:37:22,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 19:37:22,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 19:37:22,873 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 19:37:22,909 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 19:37:22,911 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 19:37:22,912 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-04 19:37:22,913 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;@2fb45b49, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 19:37:22,913 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-04 19:37:22,994 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 19:37:22,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 19:37:22,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1125966199, now seen corresponding path program 1 times [2023-05-04 19:37:22,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 19:37:22,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255566023] [2023-05-04 19:37:22,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 19:37:22,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 19:37:23,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 19:37:23,031 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 19:37:23,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 19:37:23,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255566023] [2023-05-04 19:37:23,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255566023] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 19:37:23,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 19:37:23,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-05-04 19:37:23,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973830935] [2023-05-04 19:37:23,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 19:37:23,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-05-04 19:37:23,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 19:37:23,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-05-04 19:37:23,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-05-04 19:37:23,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:23,035 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 19:37:23,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 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 19:37:23,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:23,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:23,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-05-04 19:37:23,050 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 19:37:23,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 19:37:23,051 INFO L85 PathProgramCache]: Analyzing trace with hash 4369674, now seen corresponding path program 1 times [2023-05-04 19:37:23,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 19:37:23,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505938367] [2023-05-04 19:37:23,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 19:37:23,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 19:37:23,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 19:37:23,086 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 19:37:23,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 19:37:23,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505938367] [2023-05-04 19:37:23,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505938367] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 19:37:23,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 19:37:23,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 19:37:23,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495203014] [2023-05-04 19:37:23,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 19:37:23,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 19:37:23,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 19:37:23,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 19:37:23,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 19:37:23,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:23,089 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 19:37:23,089 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) [2023-05-04 19:37:23,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:23,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:23,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:23,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:23,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-05-04 19:37:23,110 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 19:37:23,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 19:37:23,110 INFO L85 PathProgramCache]: Analyzing trace with hash 2145750280, now seen corresponding path program 1 times [2023-05-04 19:37:23,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 19:37:23,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227687590] [2023-05-04 19:37:23,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 19:37:23,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 19:37:23,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-05-04 19:37:23,133 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-05-04 19:37:23,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-05-04 19:37:23,166 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-05-04 19:37:23,167 INFO L359 BasicCegarLoop]: Counterexample is feasible [2023-05-04 19:37:23,167 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-05-04 19:37:23,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-05-04 19:37:23,173 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-05-04 19:37:23,174 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (2/2) [2023-05-04 19:37:23,174 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-05-04 19:37:23,174 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-05-04 19:37:23,194 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-05-04 19:37:23,196 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 19:37:23,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 19:37:23,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 19:37:23,205 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 19:37:23,208 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 19:37:23,209 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 19:37:23,210 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-04 19:37:23,210 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;@2fb45b49, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 19:37:23,211 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-04 19:37:23,331 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 19:37:23,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 19:37:23,332 INFO L85 PathProgramCache]: Analyzing trace with hash -2106784718, now seen corresponding path program 1 times [2023-05-04 19:37:23,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 19:37:23,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220151708] [2023-05-04 19:37:23,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 19:37:23,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 19:37:23,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 19:37:23,399 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-05-04 19:37:23,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 19:37:23,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220151708] [2023-05-04 19:37:23,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220151708] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 19:37:23,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 19:37:23,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 19:37:23,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701861954] [2023-05-04 19:37:23,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 19:37:23,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 19:37:23,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 19:37:23,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 19:37:23,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 19:37:23,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:23,403 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 19:37:23,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 19:37:23,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:23,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:23,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-05-04 19:37:23,455 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 19:37:23,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 19:37:23,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1048703980, now seen corresponding path program 1 times [2023-05-04 19:37:23,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 19:37:23,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467523660] [2023-05-04 19:37:23,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 19:37:23,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 19:37:23,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-05-04 19:37:23,489 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-05-04 19:37:23,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-05-04 19:37:23,528 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-05-04 19:37:23,528 INFO L359 BasicCegarLoop]: Counterexample is feasible [2023-05-04 19:37:23,528 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-05-04 19:37:23,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-05-04 19:37:23,531 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2023-05-04 19:37:23,532 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (1/3) [2023-05-04 19:37:23,532 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-05-04 19:37:23,532 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-05-04 19:37:23,564 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-05-04 19:37:23,576 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 19:37:23,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 19:37:23,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 19:37:23,578 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) [2023-05-04 19:37:23,584 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 19:37:23,585 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread3of3ForFork0 ======== [2023-05-04 19:37:23,586 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;@2fb45b49, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 19:37:23,586 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-04 19:37:23,603 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 [2023-05-04 19:37:23,760 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 19:37:23,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 19:37:23,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1559753109, now seen corresponding path program 1 times [2023-05-04 19:37:23,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 19:37:23,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345890412] [2023-05-04 19:37:23,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 19:37:23,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 19:37:23,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 19:37:23,818 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-05-04 19:37:23,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 19:37:23,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345890412] [2023-05-04 19:37:23,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345890412] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 19:37:23,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 19:37:23,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 19:37:23,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738319355] [2023-05-04 19:37:23,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 19:37:23,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 19:37:23,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 19:37:23,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 19:37:23,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 19:37:23,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:23,820 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 19:37:23,821 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 19:37:23,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:23,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:23,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-05-04 19:37:23,873 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 19:37:23,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 19:37:23,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1820371341, now seen corresponding path program 1 times [2023-05-04 19:37:23,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 19:37:23,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615221144] [2023-05-04 19:37:23,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 19:37:23,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 19:37:23,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 19:37:23,937 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 19:37:23,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 19:37:23,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615221144] [2023-05-04 19:37:23,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615221144] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 19:37:23,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 19:37:23,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 19:37:23,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059491071] [2023-05-04 19:37:23,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 19:37:23,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 19:37:23,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 19:37:23,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 19:37:23,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 19:37:23,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:23,940 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 19:37:23,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 19:37:23,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:23,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:23,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:23,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:23,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-05-04 19:37:23,966 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 19:37:23,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 19:37:23,966 INFO L85 PathProgramCache]: Analyzing trace with hash 151879852, now seen corresponding path program 1 times [2023-05-04 19:37:23,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 19:37:23,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089567097] [2023-05-04 19:37:23,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 19:37:23,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 19:37:23,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 19:37:24,048 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-05-04 19:37:24,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 19:37:24,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089567097] [2023-05-04 19:37:24,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089567097] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 19:37:24,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 19:37:24,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 19:37:24,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072660891] [2023-05-04 19:37:24,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 19:37:24,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 19:37:24,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 19:37:24,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 19:37:24,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 19:37:24,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:24,051 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 19:37:24,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 19:37:24,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:24,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:24,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:24,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:24,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:24,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:24,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-05-04 19:37:24,081 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 19:37:24,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 19:37:24,083 INFO L85 PathProgramCache]: Analyzing trace with hash 151878829, now seen corresponding path program 1 times [2023-05-04 19:37:24,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 19:37:24,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295154082] [2023-05-04 19:37:24,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 19:37:24,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 19:37:24,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 19:37:24,132 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-05-04 19:37:24,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 19:37:24,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295154082] [2023-05-04 19:37:24,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295154082] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 19:37:24,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 19:37:24,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 19:37:24,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624924654] [2023-05-04 19:37:24,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 19:37:24,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 19:37:24,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 19:37:24,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 19:37:24,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 19:37:24,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:24,135 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 19:37:24,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 19:37:24,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:24,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:24,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:24,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:24,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:24,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:24,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:24,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:24,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-05-04 19:37:24,165 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 19:37:24,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 19:37:24,166 INFO L85 PathProgramCache]: Analyzing trace with hash 150926540, now seen corresponding path program 1 times [2023-05-04 19:37:24,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 19:37:24,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388729541] [2023-05-04 19:37:24,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 19:37:24,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 19:37:24,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 19:37:24,235 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-05-04 19:37:24,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 19:37:24,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388729541] [2023-05-04 19:37:24,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388729541] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 19:37:24,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 19:37:24,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 19:37:24,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502624218] [2023-05-04 19:37:24,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 19:37:24,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 19:37:24,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 19:37:24,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 19:37:24,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 19:37:24,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:24,237 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 19:37:24,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 19:37:24,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:24,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:24,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:24,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:24,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:24,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:24,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:24,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:24,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:24,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:24,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-05-04 19:37:24,265 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 19:37:24,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 19:37:24,265 INFO L85 PathProgramCache]: Analyzing trace with hash 150925517, now seen corresponding path program 1 times [2023-05-04 19:37:24,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 19:37:24,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348547674] [2023-05-04 19:37:24,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 19:37:24,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 19:37:24,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 19:37:24,301 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-05-04 19:37:24,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 19:37:24,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348547674] [2023-05-04 19:37:24,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348547674] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 19:37:24,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 19:37:24,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 19:37:24,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901554471] [2023-05-04 19:37:24,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 19:37:24,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 19:37:24,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 19:37:24,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 19:37:24,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 19:37:24,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:24,304 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 19:37:24,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 19:37:24,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:24,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:24,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:24,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:24,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:24,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:36,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:36,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:36,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:36,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:36,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:36,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:36,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-05-04 19:37:36,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-05-04 19:37:36,985 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-05-04 19:37:36,985 INFO L307 ceAbstractionStarter]: Result for error location thr1Thread3of3ForFork0 was SAFE (1/4) [2023-05-04 19:37:36,987 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 19:37:36,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 19:37:36,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 19:37:36,991 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-05-04 19:37:36,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2023-05-04 19:37:36,996 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 19:37:36,997 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-04 19:37:36,997 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;@2fb45b49, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 19:37:36,997 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-04 19:37:37,114 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 19:37:37,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 19:37:37,115 INFO L85 PathProgramCache]: Analyzing trace with hash -157874391, now seen corresponding path program 1 times [2023-05-04 19:37:37,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 19:37:37,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371645735] [2023-05-04 19:37:37,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 19:37:37,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 19:37:37,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 19:37:37,150 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-05-04 19:37:37,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 19:37:37,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371645735] [2023-05-04 19:37:37,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371645735] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 19:37:37,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 19:37:37,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 19:37:37,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89154797] [2023-05-04 19:37:37,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 19:37:37,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 19:37:37,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 19:37:37,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 19:37:37,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 19:37:37,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:37,154 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 19:37:37,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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) [2023-05-04 19:37:37,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:37,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:37,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-05-04 19:37:37,185 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 19:37:37,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 19:37:37,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1029558855, now seen corresponding path program 1 times [2023-05-04 19:37:37,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 19:37:37,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581836253] [2023-05-04 19:37:37,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 19:37:37,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 19:37:37,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 19:37:37,228 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-05-04 19:37:37,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 19:37:37,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581836253] [2023-05-04 19:37:37,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581836253] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 19:37:37,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 19:37:37,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 19:37:37,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451889192] [2023-05-04 19:37:37,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 19:37:37,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 19:37:37,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 19:37:37,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 19:37:37,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 19:37:37,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:37,230 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 19:37:37,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 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 19:37:37,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:37,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:37,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:37,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:37,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-05-04 19:37:37,249 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 19:37:37,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 19:37:37,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1094159880, now seen corresponding path program 1 times [2023-05-04 19:37:37,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 19:37:37,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819052196] [2023-05-04 19:37:37,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 19:37:37,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 19:37:37,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-05-04 19:37:37,288 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-05-04 19:37:37,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-05-04 19:37:37,324 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-05-04 19:37:37,324 INFO L359 BasicCegarLoop]: Counterexample is feasible [2023-05-04 19:37:37,324 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-05-04 19:37:37,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-05-04 19:37:37,326 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-05-04 19:37:37,326 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (2/4) [2023-05-04 19:37:37,326 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-05-04 19:37:37,326 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-05-04 19:37:37,367 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-05-04 19:37:37,370 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 19:37:37,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 19:37:37,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 19:37:37,375 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) [2023-05-04 19:37:37,378 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 19:37:37,379 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread3of4ForFork0 ======== [2023-05-04 19:37:37,380 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;@2fb45b49, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 19:37:37,380 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-04 19:37:37,397 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 [2023-05-04 19:37:37,580 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 19:37:37,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 19:37:37,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1284593487, now seen corresponding path program 1 times [2023-05-04 19:37:37,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 19:37:37,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619389267] [2023-05-04 19:37:37,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 19:37:37,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 19:37:37,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 19:37:37,629 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-05-04 19:37:37,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 19:37:37,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619389267] [2023-05-04 19:37:37,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619389267] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 19:37:37,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 19:37:37,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 19:37:37,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251299354] [2023-05-04 19:37:37,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 19:37:37,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 19:37:37,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 19:37:37,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 19:37:37,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 19:37:37,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:37,632 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 19:37:37,632 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 19:37:37,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:37,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:37,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-05-04 19:37:37,655 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 19:37:37,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 19:37:37,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1936703822, now seen corresponding path program 1 times [2023-05-04 19:37:37,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 19:37:37,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934968699] [2023-05-04 19:37:37,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 19:37:37,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 19:37:37,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 19:37:37,688 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-05-04 19:37:37,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 19:37:37,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934968699] [2023-05-04 19:37:37,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934968699] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 19:37:37,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 19:37:37,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 19:37:37,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621988572] [2023-05-04 19:37:37,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 19:37:37,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 19:37:37,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 19:37:37,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 19:37:37,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 19:37:37,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:37,690 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 19:37:37,690 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 19:37:37,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:37,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:37,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:37,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:37,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-05-04 19:37:37,737 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 19:37:37,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 19:37:37,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1419263756, now seen corresponding path program 1 times [2023-05-04 19:37:37,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 19:37:37,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999259798] [2023-05-04 19:37:37,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 19:37:37,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 19:37:37,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 19:37:37,773 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-05-04 19:37:37,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 19:37:37,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999259798] [2023-05-04 19:37:37,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999259798] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 19:37:37,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 19:37:37,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 19:37:37,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197768559] [2023-05-04 19:37:37,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 19:37:37,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 19:37:37,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 19:37:37,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 19:37:37,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 19:37:37,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:37,775 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 19:37:37,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 19:37:37,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:37,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:37,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:38,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:38,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:38,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:38,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-05-04 19:37:38,034 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 19:37:38,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 19:37:38,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1419264779, now seen corresponding path program 1 times [2023-05-04 19:37:38,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 19:37:38,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523177669] [2023-05-04 19:37:38,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 19:37:38,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 19:37:38,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 19:37:38,112 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-05-04 19:37:38,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 19:37:38,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523177669] [2023-05-04 19:37:38,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523177669] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 19:37:38,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 19:37:38,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-05-04 19:37:38,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660732374] [2023-05-04 19:37:38,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 19:37:38,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-05-04 19:37:38,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 19:37:38,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-05-04 19:37:38,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-05-04 19:37:38,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:38,115 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 19:37:38,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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 19:37:38,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:38,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:38,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:38,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:38,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:38,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:38,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:38,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 19:37:38,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-05-04 19:37:38,189 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 19:37:38,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 19:37:38,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1420217068, now seen corresponding path program 1 times [2023-05-04 19:37:38,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 19:37:38,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112835809] [2023-05-04 19:37:38,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 19:37:38,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 19:37:38,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 19:37:38,232 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-05-04 19:37:38,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 19:37:38,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112835809] [2023-05-04 19:37:38,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112835809] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 19:37:38,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 19:37:38,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 19:37:38,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377505226] [2023-05-04 19:37:38,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 19:37:38,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 19:37:38,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 19:37:38,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 19:37:38,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 19:37:38,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:38,236 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 19:37:38,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 19:37:38,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:38,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:38,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:38,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 19:37:38,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:38,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:38,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:38,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:38,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 19:37:38,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:38,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-05-04 19:37:38,303 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 19:37:38,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 19:37:38,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1420218091, now seen corresponding path program 1 times [2023-05-04 19:37:38,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 19:37:38,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530034024] [2023-05-04 19:37:38,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 19:37:38,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 19:37:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 19:37:38,364 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-05-04 19:37:38,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 19:37:38,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530034024] [2023-05-04 19:37:38,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530034024] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 19:37:38,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 19:37:38,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 19:37:38,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124450365] [2023-05-04 19:37:38,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 19:37:38,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 19:37:38,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 19:37:38,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 19:37:38,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 19:37:38,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 19:37:38,367 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 19:37:38,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 19:37:38,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:38,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:38,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:38,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 19:37:38,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 19:37:38,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.