/usr/bin/java -Xmx7000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.prune.known.deadend.states.from.previous.iterations false -s ../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf --traceabstraction.cegar.restart.behaviour ONLY_ONE_CEGAR -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/fib_unsafe-10.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dynamic-abstractions-e2ee32c-m [2023-09-07 17:44:19,136 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-09-07 17:44:19,193 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2023-09-07 17:44:19,197 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-09-07 17:44:19,198 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-09-07 17:44:19,198 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-09-07 17:44:19,220 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-07 17:44:19,220 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-07 17:44:19,221 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-07 17:44:19,224 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-07 17:44:19,224 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-07 17:44:19,225 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-07 17:44:19,225 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-09-07 17:44:19,226 INFO L153 SettingsManager]: * Use SBE=true [2023-09-07 17:44:19,226 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-07 17:44:19,227 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-07 17:44:19,227 INFO L153 SettingsManager]: * sizeof long=4 [2023-09-07 17:44:19,227 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-07 17:44:19,227 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-09-07 17:44:19,227 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-09-07 17:44:19,227 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-07 17:44:19,228 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-07 17:44:19,228 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-07 17:44:19,228 INFO L153 SettingsManager]: * sizeof long double=12 [2023-09-07 17:44:19,228 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-09-07 17:44:19,228 INFO L153 SettingsManager]: * Use constant arrays=true [2023-09-07 17:44:19,229 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-07 17:44:19,229 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-07 17:44:19,229 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-09-07 17:44:19,229 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-07 17:44:19,230 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-07 17:44:19,230 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-07 17:44:19,230 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-07 17:44:19,230 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2023-09-07 17:44:19,230 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-07 17:44:19,231 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-07 17:44:19,231 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-07 17:44:19,231 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-09-07 17:44:19,231 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-09-07 17:44:19,231 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-07 17:44:19,231 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2023-09-07 17:44:19,231 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONLY_ONE_CEGAR [2023-09-07 17:44:19,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-07 17:44:19,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-07 17:44:19,469 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-07 17:44:19,470 INFO L270 PluginConnector]: Initializing CDTParser... [2023-09-07 17:44:19,471 INFO L274 PluginConnector]: CDTParser initialized [2023-09-07 17:44:19,471 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/fib_unsafe-10.i [2023-09-07 17:44:20,759 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-09-07 17:44:21,095 INFO L384 CDTParser]: Found 1 translation units. [2023-09-07 17:44:21,095 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_unsafe-10.i [2023-09-07 17:44:21,122 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79a6076df/bfe0ef4345fb410fa0c662a2bde757c1/FLAGc71255add [2023-09-07 17:44:21,131 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79a6076df/bfe0ef4345fb410fa0c662a2bde757c1 [2023-09-07 17:44:21,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-07 17:44:21,133 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-09-07 17:44:21,134 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-07 17:44:21,134 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-07 17:44:21,143 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-07 17:44:21,144 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 05:44:21" (1/1) ... [2023-09-07 17:44:21,149 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7804bdd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:44:21, skipping insertion in model container [2023-09-07 17:44:21,149 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 05:44:21" (1/1) ... [2023-09-07 17:44:21,200 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-09-07 17:44:21,568 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_unsafe-10.i[30243,30256] [2023-09-07 17:44:21,585 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-07 17:44:21,606 INFO L202 MainTranslator]: Completed pre-run [2023-09-07 17:44:21,630 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [229] [2023-09-07 17:44:21,632 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [230] [2023-09-07 17:44:21,654 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_unsafe-10.i[30243,30256] [2023-09-07 17:44:21,678 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-07 17:44:21,715 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-07 17:44:21,715 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-07 17:44:21,720 INFO L206 MainTranslator]: Completed translation [2023-09-07 17:44:21,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:44:21 WrapperNode [2023-09-07 17:44:21,720 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-07 17:44:21,721 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-07 17:44:21,721 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-07 17:44:21,721 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-07 17:44:21,725 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:44:21" (1/1) ... [2023-09-07 17:44:21,768 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:44:21" (1/1) ... [2023-09-07 17:44:21,787 INFO L138 Inliner]: procedures = 165, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 76 [2023-09-07 17:44:21,787 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-07 17:44:21,788 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-07 17:44:21,788 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-07 17:44:21,788 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-09-07 17:44:21,808 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:44:21" (1/1) ... [2023-09-07 17:44:21,808 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:44:21" (1/1) ... [2023-09-07 17:44:21,812 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:44:21" (1/1) ... [2023-09-07 17:44:21,813 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:44:21" (1/1) ... [2023-09-07 17:44:21,825 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:44:21" (1/1) ... [2023-09-07 17:44:21,827 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:44:21" (1/1) ... [2023-09-07 17:44:21,828 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:44:21" (1/1) ... [2023-09-07 17:44:21,829 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:44:21" (1/1) ... [2023-09-07 17:44:21,830 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-07 17:44:21,831 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-07 17:44:21,831 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-09-07 17:44:21,831 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-09-07 17:44:21,832 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:44:21" (1/1) ... [2023-09-07 17:44:21,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-07 17:44:21,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 17:44:21,890 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-09-07 17:44:21,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-09-07 17:44:21,952 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-09-07 17:44:21,952 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-09-07 17:44:21,952 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-09-07 17:44:21,953 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-09-07 17:44:21,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-07 17:44:21,953 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-07 17:44:21,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-07 17:44:21,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-07 17:44:21,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-07 17:44:21,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-07 17:44:21,953 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-07 17:44:21,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-07 17:44:21,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-07 17:44:21,954 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-07 17:44:22,142 INFO L236 CfgBuilder]: Building ICFG [2023-09-07 17:44:22,144 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-07 17:44:22,362 INFO L277 CfgBuilder]: Performing block encoding [2023-09-07 17:44:22,370 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-07 17:44:22,370 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-09-07 17:44:22,371 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 05:44:22 BoogieIcfgContainer [2023-09-07 17:44:22,372 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-07 17:44:22,373 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-07 17:44:22,373 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-09-07 17:44:22,376 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-09-07 17:44:22,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 05:44:21" (1/3) ... [2023-09-07 17:44:22,376 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dfb99b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 05:44:22, skipping insertion in model container [2023-09-07 17:44:22,377 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 05:44:21" (2/3) ... [2023-09-07 17:44:22,377 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dfb99b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 05:44:22, skipping insertion in model container [2023-09-07 17:44:22,378 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 05:44:22" (3/3) ... [2023-09-07 17:44:22,378 INFO L112 eAbstractionObserver]: Analyzing ICFG fib_unsafe-10.i [2023-09-07 17:44:22,395 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-07 17:44:22,414 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-07 17:44:22,414 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-09-07 17:44:22,414 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-07 17:44:22,510 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-09-07 17:44:22,601 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 17:44:22,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-09-07 17:44:22,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 17:44:22,605 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-09-07 17:44:22,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-09-07 17:44:22,635 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-09-07 17:44:22,656 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-07 17:44:22,661 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;@3ae3f659, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 17:44:22,661 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2023-09-07 17:44:23,343 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-07 17:44:23,348 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 17:44:23,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1875915451, now seen corresponding path program 1 times [2023-09-07 17:44:23,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 17:44:23,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097908988] [2023-09-07 17:44:23,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 17:44:23,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 17:44:23,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 17:44:23,655 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 17:44:23,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 17:44:23,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097908988] [2023-09-07 17:44:23,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097908988] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 17:44:23,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318011910] [2023-09-07 17:44:23,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 17:44:23,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 17:44:23,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 17:44:23,706 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 17:44:23,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-09-07 17:44:23,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 17:44:23,783 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 4 conjunts are in the unsatisfiable core [2023-09-07 17:44:23,788 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 17:44:23,873 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 17:44:23,873 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 17:44:23,909 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 17:44:23,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318011910] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 17:44:23,910 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 17:44:23,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-09-07 17:44:23,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952161696] [2023-09-07 17:44:23,912 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 17:44:23,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-07 17:44:23,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 17:44:23,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-07 17:44:23,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-09-07 17:44:23,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 17:44:23,938 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 17:44:23,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 17:44:23,939 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2023-09-07 17:44:24,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-09-07 17:44:24,044 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-09-07 17:44:24,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-09-07 17:44:24,224 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-07 17:44:24,226 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 17:44:24,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1053492738, now seen corresponding path program 2 times [2023-09-07 17:44:24,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 17:44:24,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712412206] [2023-09-07 17:44:24,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 17:44:24,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 17:44:24,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 17:44:24,535 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 17:44:24,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 17:44:24,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712412206] [2023-09-07 17:44:24,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712412206] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 17:44:24,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447580471] [2023-09-07 17:44:24,536 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-09-07 17:44:24,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 17:44:24,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 17:44:24,540 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 17:44:24,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-09-07 17:44:24,609 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-09-07 17:44:24,609 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-07 17:44:24,610 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 10 conjunts are in the unsatisfiable core [2023-09-07 17:44:24,612 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 17:44:24,659 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 17:44:24,659 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 17:44:24,775 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 17:44:24,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447580471] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 17:44:24,775 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 17:44:24,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2023-09-07 17:44:24,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945262991] [2023-09-07 17:44:24,775 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 17:44:24,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-09-07 17:44:24,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 17:44:24,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-09-07 17:44:24,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2023-09-07 17:44:24,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 17:44:24,778 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 17:44:24,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.2727272727272725) internal successors, (116), 22 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 17:44:24,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-09-07 17:44:24,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2023-09-07 17:44:24,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-09-07 17:44:24,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-09-07 17:44:24,989 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-09-07 17:44:25,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 17:44:25,175 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-07 17:44:25,175 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 17:44:25,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1358851614, now seen corresponding path program 3 times [2023-09-07 17:44:25,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 17:44:25,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506825816] [2023-09-07 17:44:25,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 17:44:25,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 17:44:25,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 17:44:25,551 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 17:44:25,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 17:44:25,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506825816] [2023-09-07 17:44:25,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506825816] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 17:44:25,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1631046310] [2023-09-07 17:44:25,551 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-09-07 17:44:25,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 17:44:25,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 17:44:25,569 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 17:44:25,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-09-07 17:44:25,654 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-09-07 17:44:25,654 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-07 17:44:25,655 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 22 conjunts are in the unsatisfiable core [2023-09-07 17:44:25,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 17:44:25,763 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 17:44:25,764 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 17:44:26,206 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 17:44:26,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1631046310] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 17:44:26,207 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 17:44:26,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 46 [2023-09-07 17:44:26,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977532889] [2023-09-07 17:44:26,207 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 17:44:26,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-09-07 17:44:26,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 17:44:26,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-09-07 17:44:26,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=552, Invalid=1518, Unknown=0, NotChecked=0, Total=2070 [2023-09-07 17:44:26,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 17:44:26,210 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 17:44:26,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 4.3478260869565215) internal successors, (200), 46 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 17:44:26,210 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-09-07 17:44:26,210 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-09-07 17:44:26,210 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer Found a loop, use abstraction hammer [2023-09-07 17:44:26,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-09-07 17:44:26,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-09-07 17:44:26,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-09-07 17:44:26,989 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-09-07 17:44:27,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 17:44:27,169 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-07 17:44:27,169 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 17:44:27,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1940267426, now seen corresponding path program 4 times [2023-09-07 17:44:27,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 17:44:27,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819224028] [2023-09-07 17:44:27,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 17:44:27,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 17:44:27,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 17:44:30,787 INFO L134 CoverageAnalysis]: Checked inductivity of 1639 backedges. 0 proven. 1639 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 17:44:30,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 17:44:30,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819224028] [2023-09-07 17:44:30,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819224028] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 17:44:30,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333851465] [2023-09-07 17:44:30,788 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-09-07 17:44:30,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 17:44:30,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 17:44:30,793 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 17:44:30,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-09-07 17:44:30,911 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-09-07 17:44:30,911 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-07 17:44:30,913 INFO L262 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 75 conjunts are in the unsatisfiable core [2023-09-07 17:44:30,917 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 17:44:37,256 INFO L134 CoverageAnalysis]: Checked inductivity of 1639 backedges. 1370 proven. 269 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 17:44:37,256 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 17:44:45,086 INFO L134 CoverageAnalysis]: Checked inductivity of 1639 backedges. 0 proven. 1639 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 17:44:45,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333851465] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 17:44:45,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 17:44:45,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [75, 75, 75] total 217 [2023-09-07 17:44:45,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896497550] [2023-09-07 17:44:45,087 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 17:44:45,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 217 states [2023-09-07 17:44:45,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 17:44:45,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 217 interpolants. [2023-09-07 17:44:45,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2697, Invalid=44175, Unknown=0, NotChecked=0, Total=46872 [2023-09-07 17:44:45,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 17:44:45,100 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 17:44:45,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 217 states, 217 states have (on average 2.7004608294930876) internal successors, (586), 217 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 17:44:45,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-09-07 17:44:45,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-09-07 17:44:45,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2023-09-07 17:44:45,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Found a loop, use abstraction hammer