/usr/bin/java -Xmx7000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.prune.known.deadend.states.from.previous.iterations false -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-figure3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dynamic-abstractions-e2ee32c-m [2023-09-07 10:20:23,045 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-09-07 10:20:23,119 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2023-09-07 10:20:23,125 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-09-07 10:20:23,125 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-09-07 10:20:23,126 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-09-07 10:20:23,153 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-07 10:20:23,153 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-07 10:20:23,154 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-07 10:20:23,158 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-07 10:20:23,158 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-07 10:20:23,158 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-07 10:20:23,159 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-09-07 10:20:23,160 INFO L153 SettingsManager]: * Use SBE=true [2023-09-07 10:20:23,160 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-07 10:20:23,160 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-07 10:20:23,161 INFO L153 SettingsManager]: * sizeof long=4 [2023-09-07 10:20:23,161 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-07 10:20:23,161 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-09-07 10:20:23,161 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-09-07 10:20:23,161 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-07 10:20:23,162 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-07 10:20:23,162 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-07 10:20:23,162 INFO L153 SettingsManager]: * sizeof long double=12 [2023-09-07 10:20:23,162 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-09-07 10:20:23,163 INFO L153 SettingsManager]: * Use constant arrays=true [2023-09-07 10:20:23,163 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-07 10:20:23,163 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-07 10:20:23,164 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-09-07 10:20:23,164 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-07 10:20:23,165 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-07 10:20:23,165 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-07 10:20:23,165 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-07 10:20:23,165 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-07 10:20:23,165 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-07 10:20:23,166 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-07 10:20:23,166 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-09-07 10:20:23,166 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-09-07 10:20:23,166 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-07 10:20:23,166 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2023-09-07 10:20:23,166 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2023-09-07 10:20:23,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-07 10:20:23,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-07 10:20:23,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-07 10:20:23,432 INFO L270 PluginConnector]: Initializing CDTParser... [2023-09-07 10:20:23,432 INFO L274 PluginConnector]: CDTParser initialized [2023-09-07 10:20:23,433 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-figure3.wvr.c [2023-09-07 10:20:24,553 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-09-07 10:20:24,742 INFO L384 CDTParser]: Found 1 translation units. [2023-09-07 10:20:24,742 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-figure3.wvr.c [2023-09-07 10:20:24,750 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9b1a7996/e8d12e04456448e79040329c18c8422f/FLAG29fd2644b [2023-09-07 10:20:24,767 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9b1a7996/e8d12e04456448e79040329c18c8422f [2023-09-07 10:20:24,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-07 10:20:24,775 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-09-07 10:20:24,778 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-07 10:20:24,778 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-07 10:20:24,782 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-07 10:20:24,783 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 10:20:24" (1/1) ... [2023-09-07 10:20:24,784 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a0d14ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:20:24, skipping insertion in model container [2023-09-07 10:20:24,784 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 10:20:24" (1/1) ... [2023-09-07 10:20:24,805 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-09-07 10:20:24,961 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-figure3.wvr.c[2121,2134] [2023-09-07 10:20:24,964 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-07 10:20:24,971 INFO L202 MainTranslator]: Completed pre-run [2023-09-07 10:20:24,997 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-figure3.wvr.c[2121,2134] [2023-09-07 10:20:25,002 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-07 10:20:25,011 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-07 10:20:25,012 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-07 10:20:25,018 INFO L206 MainTranslator]: Completed translation [2023-09-07 10:20:25,018 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:20:25 WrapperNode [2023-09-07 10:20:25,018 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-07 10:20:25,019 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-07 10:20:25,019 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-07 10:20:25,019 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-07 10:20:25,025 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:20:25" (1/1) ... [2023-09-07 10:20:25,032 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:20:25" (1/1) ... [2023-09-07 10:20:25,051 INFO L138 Inliner]: procedures = 21, calls = 25, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 75 [2023-09-07 10:20:25,052 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-07 10:20:25,052 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-07 10:20:25,053 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-07 10:20:25,053 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-09-07 10:20:25,059 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:20:25" (1/1) ... [2023-09-07 10:20:25,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:20:25" (1/1) ... [2023-09-07 10:20:25,061 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:20:25" (1/1) ... [2023-09-07 10:20:25,061 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:20:25" (1/1) ... [2023-09-07 10:20:25,064 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:20:25" (1/1) ... [2023-09-07 10:20:25,067 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:20:25" (1/1) ... [2023-09-07 10:20:25,071 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:20:25" (1/1) ... [2023-09-07 10:20:25,072 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:20:25" (1/1) ... [2023-09-07 10:20:25,074 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-07 10:20:25,074 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-07 10:20:25,074 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-09-07 10:20:25,075 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-09-07 10:20:25,075 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:20:25" (1/1) ... [2023-09-07 10:20:25,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-07 10:20:25,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 10:20:25,108 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 10:20:25,117 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 10:20:25,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-07 10:20:25,144 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-09-07 10:20:25,144 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-09-07 10:20:25,144 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-09-07 10:20:25,144 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-09-07 10:20:25,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-07 10:20:25,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-07 10:20:25,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-07 10:20:25,144 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-07 10:20:25,144 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-07 10:20:25,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-07 10:20:25,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-07 10:20:25,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-07 10:20:25,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-07 10:20:25,148 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 10:20:25,236 INFO L236 CfgBuilder]: Building ICFG [2023-09-07 10:20:25,238 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-07 10:20:25,454 INFO L277 CfgBuilder]: Performing block encoding [2023-09-07 10:20:25,475 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-07 10:20:25,475 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-09-07 10:20:25,477 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 10:20:25 BoogieIcfgContainer [2023-09-07 10:20:25,477 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-07 10:20:25,491 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-07 10:20:25,492 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-09-07 10:20:25,495 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-09-07 10:20:25,495 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 10:20:24" (1/3) ... [2023-09-07 10:20:25,496 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72798700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 10:20:25, skipping insertion in model container [2023-09-07 10:20:25,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:20:25" (2/3) ... [2023-09-07 10:20:25,497 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72798700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 10:20:25, skipping insertion in model container [2023-09-07 10:20:25,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 10:20:25" (3/3) ... [2023-09-07 10:20:25,499 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-figure3.wvr.c [2023-09-07 10:20:25,507 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-07 10:20:25,515 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-07 10:20:25,516 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-09-07 10:20:25,516 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-07 10:20:25,596 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-09-07 10:20:25,634 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 10:20:25,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-09-07 10:20:25,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 10:20:25,638 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 10:20:25,641 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 10:20:25,675 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-09-07 10:20:25,680 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2023-09-07 10:20:25,684 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;@300434bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 10:20:25,685 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-07 10:20:25,783 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 10:20:25,790 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 10:20:25,790 INFO L85 PathProgramCache]: Analyzing trace with hash 2009056680, now seen corresponding path program 1 times [2023-09-07 10:20:25,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 10:20:25,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738387186] [2023-09-07 10:20:25,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 10:20:25,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 10:20:25,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 10:20:26,024 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-09-07 10:20:26,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 10:20:26,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738387186] [2023-09-07 10:20:26,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738387186] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 10:20:26,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 10:20:26,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-07 10:20:26,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537027572] [2023-09-07 10:20:26,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 10:20:26,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-09-07 10:20:26,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 10:20:26,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-09-07 10:20:26,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-09-07 10:20:26,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:20:26,052 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 10:20:26,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 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 10:20:26,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:20:26,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:20:26,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-07 10:20:26,083 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 10:20:26,084 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 10:20:26,084 INFO L85 PathProgramCache]: Analyzing trace with hash -838940826, now seen corresponding path program 1 times [2023-09-07 10:20:26,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 10:20:26,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553153199] [2023-09-07 10:20:26,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 10:20:26,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 10:20:26,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 10:20:26,598 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 10:20:26,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 10:20:26,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553153199] [2023-09-07 10:20:26,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553153199] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 10:20:26,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326144745] [2023-09-07 10:20:26,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 10:20:26,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 10:20:26,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 10:20:26,643 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 10:20:26,645 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 10:20:26,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 10:20:26,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 7 conjunts are in the unsatisfiable core [2023-09-07 10:20:26,754 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 10:20:26,854 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 10:20:26,854 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-07 10:20:26,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1326144745] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 10:20:26,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-09-07 10:20:26,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 7 [2023-09-07 10:20:26,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908101615] [2023-09-07 10:20:26,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 10:20:26,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-07 10:20:26,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 10:20:26,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-07 10:20:26,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-09-07 10:20:26,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:20:26,860 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 10:20:26,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 10:20:26,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:20:26,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:20:26,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:20:26,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:20:26,918 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-09-07 10:20:27,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-09-07 10:20:27,116 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 10:20:27,116 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 10:20:27,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1362952979, now seen corresponding path program 2 times [2023-09-07 10:20:27,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 10:20:27,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207182577] [2023-09-07 10:20:27,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 10:20:27,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 10:20:27,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 10:20:27,457 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 10:20:27,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 10:20:27,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207182577] [2023-09-07 10:20:27,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207182577] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 10:20:27,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [677668476] [2023-09-07 10:20:27,458 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-09-07 10:20:27,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 10:20:27,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 10:20:27,459 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 10:20:27,462 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 10:20:27,547 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-09-07 10:20:27,547 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-07 10:20:27,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 14 conjunts are in the unsatisfiable core [2023-09-07 10:20:27,553 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 10:20:27,760 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 10:20:27,761 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 10:20:27,930 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 10:20:27,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [677668476] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 10:20:27,935 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 10:20:27,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2023-09-07 10:20:27,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270325025] [2023-09-07 10:20:27,936 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 10:20:27,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-09-07 10:20:27,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 10:20:27,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-09-07 10:20:27,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2023-09-07 10:20:27,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:20:27,940 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 10:20:27,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.375) internal successors, (102), 16 states have internal predecessors, (102), 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 10:20:27,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:20:27,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:20:27,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:20:28,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:20:28,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:20:28,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-09-07 10:20:28,741 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 10:20:28,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 10:20:28,936 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 10:20:28,936 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 10:20:28,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1268360490, now seen corresponding path program 3 times [2023-09-07 10:20:28,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 10:20:28,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688497629] [2023-09-07 10:20:28,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 10:20:28,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 10:20:28,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 10:20:29,310 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 10:20:29,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 10:20:29,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688497629] [2023-09-07 10:20:29,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688497629] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 10:20:29,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097369549] [2023-09-07 10:20:29,311 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-09-07 10:20:29,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 10:20:29,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 10:20:29,313 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 10:20:29,324 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 10:20:29,419 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-09-07 10:20:29,419 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-07 10:20:29,420 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 22 conjunts are in the unsatisfiable core [2023-09-07 10:20:29,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 10:20:29,601 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 10:20:29,601 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 10:20:29,874 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 10:20:29,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097369549] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 10:20:29,874 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 10:20:29,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 13] total 25 [2023-09-07 10:20:29,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787462616] [2023-09-07 10:20:29,875 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 10:20:29,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-09-07 10:20:29,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 10:20:29,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-09-07 10:20:29,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2023-09-07 10:20:29,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:20:29,877 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 10:20:29,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.0) internal successors, (125), 25 states have internal predecessors, (125), 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 10:20:29,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:20:29,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:20:29,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2023-09-07 10:20:29,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:20:30,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:20:30,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:20:30,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-09-07 10:20:30,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-09-07 10:20:30,670 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-09-07 10:20:30,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 10:20:30,863 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 10:20:30,863 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 10:20:30,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1325983761, now seen corresponding path program 4 times [2023-09-07 10:20:30,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 10:20:30,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761882242] [2023-09-07 10:20:30,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 10:20:30,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 10:20:30,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 10:20:31,350 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 10:20:31,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 10:20:31,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761882242] [2023-09-07 10:20:31,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761882242] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 10:20:31,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227123611] [2023-09-07 10:20:31,351 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-09-07 10:20:31,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 10:20:31,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 10:20:31,353 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 10:20:31,377 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 10:20:31,472 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-09-07 10:20:31,473 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-07 10:20:31,475 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 30 conjunts are in the unsatisfiable core [2023-09-07 10:20:31,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 10:20:31,717 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 10:20:31,717 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 10:20:32,130 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 10:20:32,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227123611] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 10:20:32,131 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 10:20:32,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17, 17] total 32 [2023-09-07 10:20:32,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777536741] [2023-09-07 10:20:32,131 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 10:20:32,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-09-07 10:20:32,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 10:20:32,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-09-07 10:20:32,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=891, Unknown=0, NotChecked=0, Total=992 [2023-09-07 10:20:32,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:20:32,133 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 10:20:32,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.09375) internal successors, (131), 32 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 10:20:32,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:20:32,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:20:32,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2023-09-07 10:20:32,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2023-09-07 10:20:32,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:20:33,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:20:33,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:20:33,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-09-07 10:20:33,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-09-07 10:20:33,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-09-07 10:20:33,872 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-09-07 10:20:34,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 10:20:34,064 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 10:20:34,065 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 10:20:34,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1051915309, now seen corresponding path program 5 times [2023-09-07 10:20:34,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 10:20:34,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403700138] [2023-09-07 10:20:34,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 10:20:34,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 10:20:34,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 10:20:34,922 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 115 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 10:20:34,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 10:20:34,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403700138] [2023-09-07 10:20:34,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403700138] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 10:20:34,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [947366173] [2023-09-07 10:20:34,922 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-09-07 10:20:34,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 10:20:34,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 10:20:34,924 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 10:20:34,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-09-07 10:20:35,129 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2023-09-07 10:20:35,129 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-07 10:20:35,131 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 38 conjunts are in the unsatisfiable core [2023-09-07 10:20:35,134 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 10:20:35,512 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-09-07 10:20:35,512 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 10:20:36,239 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-09-07 10:20:36,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [947366173] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 10:20:36,240 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 10:20:36,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 21, 21] total 52 [2023-09-07 10:20:36,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116055265] [2023-09-07 10:20:36,240 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 10:20:36,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2023-09-07 10:20:36,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 10:20:36,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2023-09-07 10:20:36,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=2422, Unknown=0, NotChecked=0, Total=2652 [2023-09-07 10:20:36,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:20:36,243 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 10:20:36,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 3.5961538461538463) internal successors, (187), 52 states have internal predecessors, (187), 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 10:20:36,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:20:36,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:20:36,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2023-09-07 10:20:36,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2023-09-07 10:20:36,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2023-09-07 10:20:36,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:20:40,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:20:40,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:20:40,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-09-07 10:20:40,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-09-07 10:20:40,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-09-07 10:20:40,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2023-09-07 10:20:40,742 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-09-07 10:20:40,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 10:20:40,941 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 10:20:40,942 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 10:20:40,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1508233146, now seen corresponding path program 6 times [2023-09-07 10:20:40,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 10:20:40,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388605990] [2023-09-07 10:20:40,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 10:20:40,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 10:20:41,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 10:20:42,077 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 0 proven. 270 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 10:20:42,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 10:20:42,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388605990] [2023-09-07 10:20:42,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388605990] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 10:20:42,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463568446] [2023-09-07 10:20:42,078 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-09-07 10:20:42,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 10:20:42,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 10:20:42,079 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 10:20:42,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-09-07 10:20:42,479 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2023-09-07 10:20:42,479 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-07 10:20:42,482 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 54 conjunts are in the unsatisfiable core [2023-09-07 10:20:42,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 10:20:43,120 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-09-07 10:20:43,121 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 10:20:44,392 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-09-07 10:20:44,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463568446] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 10:20:44,392 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 10:20:44,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 29, 29] total 74 [2023-09-07 10:20:44,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796163457] [2023-09-07 10:20:44,393 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 10:20:44,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2023-09-07 10:20:44,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 10:20:44,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2023-09-07 10:20:44,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=391, Invalid=5011, Unknown=0, NotChecked=0, Total=5402 [2023-09-07 10:20:44,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:20:44,397 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 10:20:44,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 74 states have (on average 3.27027027027027) internal successors, (242), 74 states have internal predecessors, (242), 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 10:20:44,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:20:44,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:20:44,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2023-09-07 10:20:44,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2023-09-07 10:20:44,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2023-09-07 10:20:44,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2023-09-07 10:20:44,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:21:04,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:21:04,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:21:04,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-09-07 10:21:04,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-09-07 10:21:04,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-09-07 10:21:04,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2023-09-07 10:21:04,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2023-09-07 10:21:04,512 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-09-07 10:21:04,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 10:21:04,704 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 10:21:04,705 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 10:21:04,705 INFO L85 PathProgramCache]: Analyzing trace with hash 133527439, now seen corresponding path program 7 times [2023-09-07 10:21:04,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 10:21:04,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876514349] [2023-09-07 10:21:04,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 10:21:04,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 10:21:04,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 10:21:06,824 INFO L134 CoverageAnalysis]: Checked inductivity of 658 backedges. 0 proven. 658 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 10:21:06,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 10:21:06,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876514349] [2023-09-07 10:21:06,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876514349] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 10:21:06,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104331898] [2023-09-07 10:21:06,825 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-09-07 10:21:06,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 10:21:06,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 10:21:06,826 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 10:21:06,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-09-07 10:21:06,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 10:21:06,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 78 conjunts are in the unsatisfiable core [2023-09-07 10:21:06,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 10:21:08,059 INFO L134 CoverageAnalysis]: Checked inductivity of 658 backedges. 0 proven. 608 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-09-07 10:21:08,059 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 10:21:10,426 INFO L134 CoverageAnalysis]: Checked inductivity of 658 backedges. 0 proven. 608 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-09-07 10:21:10,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104331898] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 10:21:10,427 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 10:21:10,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 41, 41] total 108 [2023-09-07 10:21:10,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668675572] [2023-09-07 10:21:10,427 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 10:21:10,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 108 states [2023-09-07 10:21:10,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 10:21:10,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2023-09-07 10:21:10,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=720, Invalid=10836, Unknown=0, NotChecked=0, Total=11556 [2023-09-07 10:21:10,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:21:10,433 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 10:21:10,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 108 states, 108 states have (on average 3.0277777777777777) internal successors, (327), 108 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 10:21:10,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:21:10,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:21:10,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2023-09-07 10:21:10,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2023-09-07 10:21:10,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2023-09-07 10:21:10,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2023-09-07 10:21:10,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 99 states. [2023-09-07 10:21:10,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:24:04,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:24:04,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:24:04,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-09-07 10:24:04,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-09-07 10:24:04,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-09-07 10:24:04,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2023-09-07 10:24:04,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2023-09-07 10:24:04,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2023-09-07 10:24:04,453 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-09-07 10:24:04,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-09-07 10:24:04,653 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 10:24:04,653 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 10:24:04,654 INFO L85 PathProgramCache]: Analyzing trace with hash 728905581, now seen corresponding path program 8 times [2023-09-07 10:24:04,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 10:24:04,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562490153] [2023-09-07 10:24:04,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 10:24:04,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 10:24:04,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 10:24:09,046 INFO L134 CoverageAnalysis]: Checked inductivity of 1646 backedges. 0 proven. 1646 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 10:24:09,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 10:24:09,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562490153] [2023-09-07 10:24:09,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562490153] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 10:24:09,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119618004] [2023-09-07 10:24:09,047 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-09-07 10:24:09,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 10:24:09,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 10:24:09,050 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 10:24:09,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-09-07 10:24:09,155 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-09-07 10:24:09,155 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-07 10:24:09,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 118 conjunts are in the unsatisfiable core [2023-09-07 10:24:09,161 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 10:24:11,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1646 backedges. 0 proven. 1506 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2023-09-07 10:24:11,452 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 10:24:16,790 INFO L134 CoverageAnalysis]: Checked inductivity of 1646 backedges. 0 proven. 1506 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2023-09-07 10:24:16,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2119618004] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 10:24:16,791 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 10:24:16,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [76, 61, 61] total 164 [2023-09-07 10:24:16,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123645686] [2023-09-07 10:24:16,791 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 10:24:16,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 164 states [2023-09-07 10:24:16,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 10:24:16,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 164 interpolants. [2023-09-07 10:24:16,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1462, Invalid=25270, Unknown=0, NotChecked=0, Total=26732 [2023-09-07 10:24:16,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:24:16,800 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 10:24:16,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 164 states, 164 states have (on average 2.847560975609756) internal successors, (467), 164 states have internal predecessors, (467), 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 10:24:16,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:24:16,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:24:16,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2023-09-07 10:24:16,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2023-09-07 10:24:16,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2023-09-07 10:24:16,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2023-09-07 10:24:16,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 99 states. [2023-09-07 10:24:16,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 153 states. [2023-09-07 10:24:16,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:28:48,364 WARN L234 SmtUtils]: Spent 8.98s on a formula simplification. DAG size of input: 110 DAG size of output: 27 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-09-07 10:30:56,357 WARN L234 SmtUtils]: Spent 6.52s on a formula simplification. DAG size of input: 103 DAG size of output: 23 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-09-07 10:34:24,645 WARN L234 SmtUtils]: Spent 7.51s on a formula simplification. DAG size of input: 106 DAG size of output: 26 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Received shutdown request... [2023-09-07 10:34:44,539 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-09-07 10:34:44,547 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-09-07 10:34:44,571 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-09-07 10:34:45,509 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-09-07 10:34:45,551 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2023-09-07 10:34:45,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2023-09-07 10:34:45,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 10:34:45,704 WARN L619 AbstractCegarLoop]: Verification canceled: while PredicateComparison was comparing new predicate (quantifier-free) to 248 known predicates. [2023-09-07 10:34:45,706 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-09-07 10:34:45,709 INFO L445 BasicCegarLoop]: Path program histogram: [8, 1] [2023-09-07 10:34:45,710 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was TIMEOUT (1/3) [2023-09-07 10:34:45,711 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-07 10:34:45,711 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-07 10:34:45,713 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.09 10:34:45 BasicIcfg [2023-09-07 10:34:45,713 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-07 10:34:45,713 INFO L158 Benchmark]: Toolchain (without parser) took 860938.73ms. Allocated memory was 155.2MB in the beginning and 348.1MB in the end (delta: 192.9MB). Free memory was 96.5MB in the beginning and 231.2MB in the end (delta: -134.7MB). Peak memory consumption was 58.8MB. Max. memory is 7.0GB. [2023-09-07 10:34:45,713 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 155.2MB. Free memory is still 107.0MB. There was no memory consumed. Max. memory is 7.0GB. [2023-09-07 10:34:45,714 INFO L158 Benchmark]: CACSL2BoogieTranslator took 240.78ms. Allocated memory is still 155.2MB. Free memory was 96.3MB in the beginning and 85.6MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 7.0GB. [2023-09-07 10:34:45,714 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.82ms. Allocated memory is still 155.2MB. Free memory was 85.6MB in the beginning and 83.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 7.0GB. [2023-09-07 10:34:45,714 INFO L158 Benchmark]: Boogie Preprocessor took 21.22ms. Allocated memory is still 155.2MB. Free memory was 83.7MB in the beginning and 82.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 7.0GB. [2023-09-07 10:34:45,714 INFO L158 Benchmark]: RCFGBuilder took 402.89ms. Allocated memory was 155.2MB in the beginning and 241.2MB in the end (delta: 86.0MB). Free memory was 82.4MB in the beginning and 203.2MB in the end (delta: -120.8MB). Peak memory consumption was 13.6MB. Max. memory is 7.0GB. [2023-09-07 10:34:45,715 INFO L158 Benchmark]: TraceAbstraction took 860221.86ms. Allocated memory was 241.2MB in the beginning and 348.1MB in the end (delta: 107.0MB). Free memory was 209.9MB in the beginning and 231.2MB in the end (delta: -21.3MB). Peak memory consumption was 85.3MB. Max. memory is 7.0GB. [2023-09-07 10:34:45,716 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 155.2MB. Free memory is still 107.0MB. There was no memory consumed. Max. memory is 7.0GB. * CACSL2BoogieTranslator took 240.78ms. Allocated memory is still 155.2MB. Free memory was 96.3MB in the beginning and 85.6MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 7.0GB. * Boogie Procedure Inliner took 32.82ms. Allocated memory is still 155.2MB. Free memory was 85.6MB in the beginning and 83.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 7.0GB. * Boogie Preprocessor took 21.22ms. Allocated memory is still 155.2MB. Free memory was 83.7MB in the beginning and 82.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 7.0GB. * RCFGBuilder took 402.89ms. Allocated memory was 155.2MB in the beginning and 241.2MB in the end (delta: 86.0MB). Free memory was 82.4MB in the beginning and 203.2MB in the end (delta: -120.8MB). Peak memory consumption was 13.6MB. Max. memory is 7.0GB. * TraceAbstraction took 860221.86ms. Allocated memory was 241.2MB in the beginning and 348.1MB in the end (delta: 107.0MB). Free memory was 209.9MB in the beginning and 231.2MB in the end (delta: -21.3MB). Peak memory consumption was 85.3MB. Max. memory is 7.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1456, independent: 965, independent conditional: 965, independent unconditional: 0, dependent: 491, dependent conditional: 491, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 969, independent: 965, independent conditional: 965, independent unconditional: 0, dependent: 4, dependent conditional: 4, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 969, independent: 965, independent conditional: 965, independent unconditional: 0, dependent: 4, dependent conditional: 4, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 975, independent: 965, independent conditional: 0, independent unconditional: 965, dependent: 10, dependent conditional: 6, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 975, independent: 965, independent conditional: 0, independent unconditional: 965, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 975, independent: 965, independent conditional: 0, independent unconditional: 965, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 70, independent: 69, independent conditional: 0, independent unconditional: 69, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 70, independent: 69, independent conditional: 0, independent unconditional: 69, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 43, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 975, independent: 896, independent conditional: 0, independent unconditional: 896, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 70, unknown conditional: 0, unknown unconditional: 70] , Statistics on independence cache: Total cache size (in pairs): 70, Positive cache size: 69, Positive conditional cache size: 0, Positive unconditional cache size: 69, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 6, Maximal queried relation: 3, Independence queries for same thread: 487 - TimeoutResultAtElement [Line: 76]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 248 known predicates. - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION with 1 thread instances CFG has 5 procedures, 101 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 860.1s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 8, EmptinessCheckTime: 830.8s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 534, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 25.2s InterpolantComputationTime, 2008 NumberOfCodeBlocks, 2008 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 2885 ConstructedInterpolants, 0 QuantifiedInterpolants, 14327 SizeOfPredicates, 176 NumberOfNonLiveVariables, 2120 ConjunctsInSsa, 361 ConjunctsInUnsatCore, 24 InterpolantComputations, 2 PerfectInterpolantSequences, 424/8328 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown