/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chl-nzb-file-symm.wvr.line124.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-09-29 20:54:57,930 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-29 20:54:57,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-29 20:54:57,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-29 20:54:57,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-29 20:54:57,951 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-29 20:54:57,952 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-29 20:54:57,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-29 20:54:57,955 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-29 20:54:57,955 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-29 20:54:57,956 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-29 20:54:57,956 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-29 20:54:57,957 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-29 20:54:57,957 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-29 20:54:57,958 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-29 20:54:57,959 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-29 20:54:57,959 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-29 20:54:57,960 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-29 20:54:57,961 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-29 20:54:57,962 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-29 20:54:57,963 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-29 20:54:57,966 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-29 20:54:57,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-29 20:54:57,968 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-29 20:54:57,970 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-29 20:54:57,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-29 20:54:57,975 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-29 20:54:57,976 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-29 20:54:57,988 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-09-29 20:54:58,014 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-29 20:54:58,014 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-29 20:54:58,014 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-29 20:54:58,014 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-29 20:54:58,020 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-29 20:54:58,020 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-29 20:54:58,021 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-29 20:54:58,021 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-29 20:54:58,021 INFO L138 SettingsManager]: * Use SBE=true [2022-09-29 20:54:58,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-29 20:54:58,022 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-29 20:54:58,022 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-29 20:54:58,022 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-29 20:54:58,022 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-29 20:54:58,022 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-29 20:54:58,022 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-29 20:54:58,022 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-29 20:54:58,022 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-29 20:54:58,023 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-29 20:54:58,023 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-29 20:54:58,023 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-29 20:54:58,023 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-29 20:54:58,023 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-29 20:54:58,024 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-29 20:54:58,024 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-29 20:54:58,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-29 20:54:58,024 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-29 20:54:58,024 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-29 20:54:58,024 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-29 20:54:58,025 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-29 20:54:58,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-29 20:54:58,025 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-29 20:54:58,025 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-09-29 20:54:58,025 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-09-29 20:54:58,025 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-29 20:54:58,025 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-09-29 20:54:58,025 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-09-29 20:54:58,025 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-09-29 20:54:58,025 INFO L138 SettingsManager]: * Independence relation used for POR in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-29 20:54:58,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-29 20:54:58,197 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-29 20:54:58,200 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-29 20:54:58,200 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-29 20:54:58,202 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-29 20:54:58,203 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chl-nzb-file-symm.wvr.line124.bpl [2022-09-29 20:54:58,203 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chl-nzb-file-symm.wvr.line124.bpl' [2022-09-29 20:54:58,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-29 20:54:58,246 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-09-29 20:54:58,247 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-29 20:54:58,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-29 20:54:58,247 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-29 20:54:58,258 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "chl-nzb-file-symm.wvr.line124.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 08:54:58" (1/1) ... [2022-09-29 20:54:58,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "chl-nzb-file-symm.wvr.line124.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 08:54:58" (1/1) ... [2022-09-29 20:54:58,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "chl-nzb-file-symm.wvr.line124.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 08:54:58" (1/1) ... [2022-09-29 20:54:58,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "chl-nzb-file-symm.wvr.line124.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 08:54:58" (1/1) ... [2022-09-29 20:54:58,305 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "chl-nzb-file-symm.wvr.line124.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 08:54:58" (1/1) ... [2022-09-29 20:54:58,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "chl-nzb-file-symm.wvr.line124.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 08:54:58" (1/1) ... [2022-09-29 20:54:58,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "chl-nzb-file-symm.wvr.line124.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 08:54:58" (1/1) ... [2022-09-29 20:54:58,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-29 20:54:58,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-29 20:54:58,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-29 20:54:58,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-29 20:54:58,333 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "chl-nzb-file-symm.wvr.line124.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 08:54:58" (1/1) ... [2022-09-29 20:54:58,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-29 20:54:58,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 20:54:58,357 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) [2022-09-29 20:54:58,372 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 [2022-09-29 20:54:58,400 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-29 20:54:58,401 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-29 20:54:58,401 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-29 20:54:58,401 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-29 20:54:58,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-29 20:54:58,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-29 20:54:58,403 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-29 20:54:58,506 INFO L234 CfgBuilder]: Building ICFG [2022-09-29 20:54:58,507 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-29 20:54:59,074 INFO L275 CfgBuilder]: Performing block encoding [2022-09-29 20:54:59,090 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-29 20:54:59,090 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-09-29 20:54:59,093 INFO L202 PluginConnector]: Adding new model chl-nzb-file-symm.wvr.line124.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 08:54:59 BoogieIcfgContainer [2022-09-29 20:54:59,093 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-29 20:54:59,094 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-29 20:54:59,094 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-29 20:54:59,111 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-29 20:54:59,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "chl-nzb-file-symm.wvr.line124.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 08:54:58" (1/2) ... [2022-09-29 20:54:59,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e03886d and model type chl-nzb-file-symm.wvr.line124.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.09 08:54:59, skipping insertion in model container [2022-09-29 20:54:59,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "chl-nzb-file-symm.wvr.line124.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 08:54:59" (2/2) ... [2022-09-29 20:54:59,117 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-symm.wvr.line124.bpl [2022-09-29 20:54:59,123 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-29 20:54:59,130 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-29 20:54:59,131 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-09-29 20:54:59,132 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-29 20:54:59,306 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-09-29 20:54:59,355 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-29 20:54:59,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-29 20:54:59,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 20:54:59,357 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) [2022-09-29 20:54:59,358 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 [2022-09-29 20:54:59,381 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-29 20:54:59,386 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread1Err0ASSERT_VIOLATIONASSERT ======== [2022-09-29 20:54:59,391 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;@7b620259, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-29 20:54:59,391 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-29 20:54:59,393 WARN L124 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2022-09-29 20:54:59,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-09-29 20:54:59,398 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-09-29 20:54:59,400 INFO L307 ceAbstractionStarter]: Result for error location thread1Err0ASSERT_VIOLATIONASSERT was SAFE (1/4) [2022-09-29 20:54:59,408 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-29 20:54:59,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-29 20:54:59,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 20:54:59,410 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-09-29 20:54:59,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2022-09-29 20:54:59,419 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-29 20:54:59,419 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-09-29 20:54:59,420 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;@7b620259, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-29 20:54:59,420 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-29 20:54:59,477 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-09-29 20:54:59,478 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-09-29 20:54:59,478 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (2/4) [2022-09-29 20:54:59,484 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-29 20:54:59,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-29 20:54:59,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 20:54:59,516 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-09-29 20:54:59,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2022-09-29 20:54:59,523 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-29 20:54:59,523 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-09-29 20:54:59,524 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;@7b620259, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-29 20:54:59,524 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-29 20:54:59,962 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-09-29 20:54:59,963 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-09-29 20:54:59,964 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (3/4) [2022-09-29 20:54:59,973 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-29 20:54:59,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-29 20:54:59,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 20:54:59,974 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-09-29 20:54:59,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2022-09-29 20:54:59,978 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-29 20:54:59,978 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread1Err0ASSERT_VIOLATIONASSERT ======== [2022-09-29 20:54:59,979 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;@7b620259, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-29 20:54:59,979 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-29 20:55:00,027 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 20:55:00,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 20:55:00,032 INFO L85 PathProgramCache]: Analyzing trace with hash 595981315, now seen corresponding path program 1 times [2022-09-29 20:55:00,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 20:55:00,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251536980] [2022-09-29 20:55:00,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 20:55:00,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 20:55:00,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 20:55:00,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 20:55:00,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 20:55:00,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251536980] [2022-09-29 20:55:00,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251536980] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 20:55:00,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 20:55:00,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-29 20:55:00,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016694797] [2022-09-29 20:55:00,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 20:55:00,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-09-29 20:55:00,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 20:55:00,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-09-29 20:55:00,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-09-29 20:55:00,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:00,282 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 20:55:00,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 107.0) internal successors, (214), 2 states have internal predecessors, (214), 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) [2022-09-29 20:55:00,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:00,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:00,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-29 20:55:00,681 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 20:55:00,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 20:55:00,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1652142904, now seen corresponding path program 1 times [2022-09-29 20:55:00,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 20:55:00,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469631197] [2022-09-29 20:55:00,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 20:55:00,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 20:55:00,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 20:55:00,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 20:55:00,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 20:55:00,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469631197] [2022-09-29 20:55:00,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469631197] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 20:55:00,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 20:55:00,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-29 20:55:00,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739278470] [2022-09-29 20:55:00,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 20:55:00,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-29 20:55:00,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 20:55:00,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-29 20:55:00,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-09-29 20:55:00,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:00,880 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 20:55:00,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.6) internal successors, (208), 5 states have internal predecessors, (208), 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) [2022-09-29 20:55:00,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:00,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:01,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:01,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:55:01,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-29 20:55:01,112 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 20:55:01,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 20:55:01,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1394609000, now seen corresponding path program 1 times [2022-09-29 20:55:01,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 20:55:01,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679382073] [2022-09-29 20:55:01,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 20:55:01,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 20:55:01,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 20:55:01,283 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-29 20:55:01,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 20:55:01,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679382073] [2022-09-29 20:55:01,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679382073] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 20:55:01,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109103712] [2022-09-29 20:55:01,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 20:55:01,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 20:55:01,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 20:55:01,317 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) [2022-09-29 20:55:01,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-09-29 20:55:01,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 20:55:01,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 6 conjunts are in the unsatisfiable core [2022-09-29 20:55:01,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 20:55:01,598 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-29 20:55:01,602 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-29 20:55:01,694 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-29 20:55:01,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109103712] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-29 20:55:01,695 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-29 20:55:01,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-09-29 20:55:01,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260097702] [2022-09-29 20:55:01,695 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-29 20:55:01,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-09-29 20:55:01,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 20:55:01,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-09-29 20:55:01,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-09-29 20:55:01,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:01,699 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 20:55:01,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 19.666666666666668) internal successors, (295), 15 states have internal predecessors, (295), 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) [2022-09-29 20:55:01,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:01,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:55:01,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:02,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:02,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:55:02,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:55:02,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-09-29 20:55:02,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 20:55:02,222 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 20:55:02,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 20:55:02,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1437538600, now seen corresponding path program 2 times [2022-09-29 20:55:02,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 20:55:02,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830072746] [2022-09-29 20:55:02,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 20:55:02,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 20:55:02,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 20:55:02,392 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-09-29 20:55:02,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 20:55:02,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830072746] [2022-09-29 20:55:02,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830072746] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 20:55:02,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669356476] [2022-09-29 20:55:02,394 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-29 20:55:02,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 20:55:02,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 20:55:02,396 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) [2022-09-29 20:55:02,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-09-29 20:55:02,512 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-29 20:55:02,512 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-29 20:55:02,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 43 conjunts are in the unsatisfiable core [2022-09-29 20:55:02,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 20:55:02,589 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-09-29 20:55:02,632 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-09-29 20:55:02,996 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-09-29 20:55:02,997 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-09-29 20:55:03,050 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-09-29 20:55:03,302 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-09-29 20:55:03,302 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-29 20:55:03,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669356476] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 20:55:03,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-29 20:55:03,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [11] total 25 [2022-09-29 20:55:03,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087500783] [2022-09-29 20:55:03,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 20:55:03,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-09-29 20:55:03,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 20:55:03,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-09-29 20:55:03,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2022-09-29 20:55:03,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:03,307 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 20:55:03,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 13.764705882352942) internal successors, (234), 18 states have internal predecessors, (234), 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) [2022-09-29 20:55:03,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:03,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:55:03,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:55:03,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:04,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:04,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:55:04,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:55:04,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-09-29 20:55:04,688 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-09-29 20:55:04,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 20:55:04,886 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 20:55:04,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 20:55:04,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1451063624, now seen corresponding path program 1 times [2022-09-29 20:55:04,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 20:55:04,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479005040] [2022-09-29 20:55:04,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 20:55:04,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 20:55:04,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 20:55:05,042 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-09-29 20:55:05,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 20:55:05,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479005040] [2022-09-29 20:55:05,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479005040] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 20:55:05,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554098841] [2022-09-29 20:55:05,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 20:55:05,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 20:55:05,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 20:55:05,048 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) [2022-09-29 20:55:05,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-09-29 20:55:05,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 20:55:05,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 10 conjunts are in the unsatisfiable core [2022-09-29 20:55:05,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 20:55:05,352 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-09-29 20:55:05,352 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-29 20:55:05,470 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-09-29 20:55:05,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554098841] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-29 20:55:05,471 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-29 20:55:05,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-09-29 20:55:05,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26786110] [2022-09-29 20:55:05,472 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-29 20:55:05,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-29 20:55:05,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 20:55:05,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-29 20:55:05,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-09-29 20:55:05,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:05,474 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 20:55:05,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 21.318181818181817) internal successors, (469), 22 states have internal predecessors, (469), 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) [2022-09-29 20:55:05,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:05,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:55:05,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:55:05,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-09-29 20:55:05,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:05,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:05,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:55:05,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:55:05,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-09-29 20:55:05,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-09-29 20:55:06,017 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-09-29 20:55:06,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 20:55:06,212 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 20:55:06,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 20:55:06,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1109207944, now seen corresponding path program 2 times [2022-09-29 20:55:06,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 20:55:06,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751610081] [2022-09-29 20:55:06,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 20:55:06,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 20:55:06,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 20:55:06,384 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-09-29 20:55:06,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 20:55:06,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751610081] [2022-09-29 20:55:06,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751610081] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 20:55:06,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 20:55:06,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-29 20:55:06,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786737289] [2022-09-29 20:55:06,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 20:55:06,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-29 20:55:06,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 20:55:06,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-29 20:55:06,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-09-29 20:55:06,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:06,388 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 20:55:06,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.285714285714285) internal successors, (366), 7 states have internal predecessors, (366), 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) [2022-09-29 20:55:06,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:06,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:55:06,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:55:06,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-09-29 20:55:06,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-09-29 20:55:06,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:06,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:06,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:55:06,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:55:06,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-09-29 20:55:06,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-09-29 20:55:06,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:55:06,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-29 20:55:06,680 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 20:55:06,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 20:55:06,684 INFO L85 PathProgramCache]: Analyzing trace with hash -884406576, now seen corresponding path program 1 times [2022-09-29 20:55:06,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 20:55:06,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419574033] [2022-09-29 20:55:06,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 20:55:06,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 20:55:06,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 20:55:06,792 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-09-29 20:55:06,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 20:55:06,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419574033] [2022-09-29 20:55:06,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419574033] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 20:55:06,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 20:55:06,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-29 20:55:06,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806433318] [2022-09-29 20:55:06,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 20:55:06,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-29 20:55:06,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 20:55:06,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-29 20:55:06,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-09-29 20:55:06,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:06,795 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 20:55:06,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 20:55:06,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:06,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:55:06,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:55:06,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-09-29 20:55:06,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-09-29 20:55:06,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:55:06,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:07,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:07,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:55:07,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:55:07,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-09-29 20:55:07,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-09-29 20:55:07,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:55:07,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:55:07,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-29 20:55:07,007 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 20:55:07,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 20:55:07,007 INFO L85 PathProgramCache]: Analyzing trace with hash -628045192, now seen corresponding path program 1 times [2022-09-29 20:55:07,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 20:55:07,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814001019] [2022-09-29 20:55:07,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 20:55:07,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 20:55:07,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 20:55:07,166 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-09-29 20:55:07,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 20:55:07,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814001019] [2022-09-29 20:55:07,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814001019] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 20:55:07,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 20:55:07,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-29 20:55:07,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987817478] [2022-09-29 20:55:07,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 20:55:07,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-29 20:55:07,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 20:55:07,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-29 20:55:07,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-09-29 20:55:07,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:07,169 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 20:55:07,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 49.714285714285715) internal successors, (348), 7 states have internal predecessors, (348), 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) [2022-09-29 20:55:07,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:07,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:55:07,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:55:07,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-09-29 20:55:07,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-09-29 20:55:07,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:55:07,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:55:07,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:07,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:07,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:55:07,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:55:07,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-09-29 20:55:07,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-09-29 20:55:07,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:55:07,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:55:07,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-29 20:55:07,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-09-29 20:55:07,380 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 20:55:07,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 20:55:07,381 INFO L85 PathProgramCache]: Analyzing trace with hash -215404336, now seen corresponding path program 1 times [2022-09-29 20:55:07,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 20:55:07,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893824211] [2022-09-29 20:55:07,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 20:55:07,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 20:55:07,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 20:55:07,465 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-09-29 20:55:07,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 20:55:07,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893824211] [2022-09-29 20:55:07,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893824211] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 20:55:07,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 20:55:07,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-29 20:55:07,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451147785] [2022-09-29 20:55:07,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 20:55:07,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-29 20:55:07,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 20:55:07,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-29 20:55:07,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-09-29 20:55:07,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:07,471 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 20:55:07,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.8) internal successors, (339), 5 states have internal predecessors, (339), 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) [2022-09-29 20:55:07,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:07,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:55:07,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:55:07,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-09-29 20:55:07,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-09-29 20:55:07,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:55:07,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:55:07,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-29 20:55:07,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:07,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:07,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:55:07,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:55:07,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-09-29 20:55:07,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-09-29 20:55:07,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:55:07,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:55:07,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-29 20:55:07,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:55:07,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-09-29 20:55:07,698 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 20:55:07,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 20:55:07,698 INFO L85 PathProgramCache]: Analyzing trace with hash -272927239, now seen corresponding path program 1 times [2022-09-29 20:55:07,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 20:55:07,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226747187] [2022-09-29 20:55:07,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 20:55:07,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 20:55:07,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 20:55:08,142 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2022-09-29 20:55:08,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 20:55:08,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226747187] [2022-09-29 20:55:08,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226747187] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 20:55:08,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [305395212] [2022-09-29 20:55:08,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 20:55:08,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 20:55:08,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 20:55:08,144 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) [2022-09-29 20:55:08,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-09-29 20:55:08,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 20:55:08,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 18 conjunts are in the unsatisfiable core [2022-09-29 20:55:08,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 20:55:08,544 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-09-29 20:55:08,544 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-29 20:55:08,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [305395212] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 20:55:08,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-29 20:55:08,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [23] total 32 [2022-09-29 20:55:08,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148886859] [2022-09-29 20:55:08,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 20:55:08,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-09-29 20:55:08,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 20:55:08,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-09-29 20:55:08,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=916, Unknown=0, NotChecked=0, Total=992 [2022-09-29 20:55:08,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:08,547 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 20:55:08,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 33.0) internal successors, (330), 10 states have internal predecessors, (330), 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) [2022-09-29 20:55:08,548 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:08,548 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:55:08,548 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:55:08,548 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-09-29 20:55:08,548 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-09-29 20:55:08,548 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:55:08,548 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:55:08,548 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-29 20:55:08,548 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:55:08,548 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:16,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:16,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:55:16,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:55:16,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-09-29 20:55:16,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-09-29 20:55:16,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:55:16,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:55:16,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:55:16,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:55:16,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-29 20:55:16,645 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-09-29 20:55:16,827 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,SelfDestructingSolverStorable9 [2022-09-29 20:55:16,828 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 20:55:16,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 20:55:16,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1709709464, now seen corresponding path program 1 times [2022-09-29 20:55:16,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 20:55:16,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638118051] [2022-09-29 20:55:16,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 20:55:16,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 20:55:16,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 20:55:17,492 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2022-09-29 20:55:17,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 20:55:17,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638118051] [2022-09-29 20:55:17,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638118051] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 20:55:17,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608050966] [2022-09-29 20:55:17,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 20:55:17,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 20:55:17,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 20:55:17,495 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) [2022-09-29 20:55:17,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-09-29 20:55:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 20:55:17,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 879 conjuncts, 46 conjunts are in the unsatisfiable core [2022-09-29 20:55:17,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 20:55:18,349 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2022-09-29 20:55:18,422 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-09-29 20:55:18,422 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-29 20:55:18,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608050966] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 20:55:18,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-29 20:55:18,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [23] total 40 [2022-09-29 20:55:18,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131459236] [2022-09-29 20:55:18,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 20:55:18,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-09-29 20:55:18,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 20:55:18,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-09-29 20:55:18,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1443, Unknown=0, NotChecked=0, Total=1560 [2022-09-29 20:55:18,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:18,425 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 20:55:18,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 20.333333333333332) internal successors, (366), 18 states have internal predecessors, (366), 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) [2022-09-29 20:55:18,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:18,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:55:18,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:55:18,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2022-09-29 20:55:18,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-09-29 20:55:18,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:55:18,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:55:18,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:55:18,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:55:18,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-09-29 20:55:18,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:28,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:55:28,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:55:28,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:55:28,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-09-29 20:55:28,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-09-29 20:55:28,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:55:28,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:55:28,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:55:28,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:55:28,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-29 20:55:28,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-09-29 20:55:28,132 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-09-29 20:55:28,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 20:55:28,313 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 20:55:28,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 20:55:28,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1318010433, now seen corresponding path program 1 times [2022-09-29 20:55:28,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 20:55:28,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28823724] [2022-09-29 20:55:28,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 20:55:28,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 20:55:28,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 20:55:28,760 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2022-09-29 20:55:28,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 20:55:28,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28823724] [2022-09-29 20:55:28,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28823724] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 20:55:28,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861125848] [2022-09-29 20:55:28,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 20:55:28,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 20:55:28,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 20:55:28,762 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-29 20:55:28,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-09-29 20:55:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 20:55:28,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 900 conjuncts, 49 conjunts are in the unsatisfiable core [2022-09-29 20:55:28,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 20:55:28,956 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-09-29 20:55:29,007 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-09-29 20:55:29,526 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-09-29 20:55:29,527 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-09-29 20:55:29,547 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-09-29 20:55:30,421 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-09-29 20:55:30,421 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-29 20:55:37,274 WARN L233 SmtUtils]: Spent 6.02s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-09-29 20:55:43,358 WARN L233 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-09-29 20:55:49,522 WARN L233 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-09-29 20:55:55,579 WARN L233 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-09-29 20:56:01,628 WARN L233 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-09-29 20:56:08,081 WARN L233 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-09-29 20:56:14,145 WARN L233 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-09-29 20:56:14,348 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-09-29 20:56:14,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1861125848] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-29 20:56:14,348 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-29 20:56:14,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 19, 19] total 52 [2022-09-29 20:56:14,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156708239] [2022-09-29 20:56:14,349 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-29 20:56:14,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-09-29 20:56:14,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 20:56:14,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-09-29 20:56:14,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=2575, Unknown=0, NotChecked=0, Total=2756 [2022-09-29 20:56:14,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:56:14,352 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 20:56:14,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 52 states have (on average 14.192307692307692) internal successors, (738), 53 states have internal predecessors, (738), 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) [2022-09-29 20:56:14,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:56:14,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:56:14,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:56:14,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2022-09-29 20:56:14,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-09-29 20:56:14,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:56:14,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:56:14,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:56:14,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:56:14,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-09-29 20:56:14,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-09-29 20:56:14,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:56:36,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:56:36,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:56:36,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:56:36,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-09-29 20:56:36,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-09-29 20:56:36,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:56:36,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:56:36,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:56:36,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:56:36,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-29 20:56:36,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-09-29 20:56:36,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-09-29 20:56:36,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-09-29 20:56:36,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-09-29 20:56:36,967 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 20:56:36,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 20:56:36,967 INFO L85 PathProgramCache]: Analyzing trace with hash -764804959, now seen corresponding path program 2 times [2022-09-29 20:56:36,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 20:56:36,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370474858] [2022-09-29 20:56:36,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 20:56:36,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 20:56:37,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 20:56:37,716 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 4 proven. 441 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2022-09-29 20:56:37,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 20:56:37,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370474858] [2022-09-29 20:56:37,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370474858] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 20:56:37,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668084544] [2022-09-29 20:56:37,717 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-29 20:56:37,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 20:56:37,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 20:56:37,718 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-29 20:56:37,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-09-29 20:56:37,934 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-09-29 20:56:37,934 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-29 20:56:37,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 1342 conjuncts, 55 conjunts are in the unsatisfiable core [2022-09-29 20:56:37,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 20:56:37,972 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-09-29 20:56:38,031 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-09-29 20:56:38,504 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-09-29 20:56:38,505 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-09-29 20:56:38,523 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-09-29 20:56:40,515 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 0 proven. 429 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-09-29 20:56:40,516 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-29 20:56:48,146 WARN L233 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-09-29 20:56:54,228 WARN L233 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-09-29 20:57:00,395 WARN L233 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-09-29 20:57:06,457 WARN L233 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-09-29 20:57:12,521 WARN L233 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-09-29 20:57:18,952 WARN L233 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-09-29 20:57:25,016 WARN L233 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-09-29 20:57:25,250 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 0 proven. 429 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-09-29 20:57:25,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [668084544] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-29 20:57:25,251 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-29 20:57:25,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 23, 23] total 67 [2022-09-29 20:57:25,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812692849] [2022-09-29 20:57:25,252 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-29 20:57:25,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2022-09-29 20:57:25,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 20:57:25,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2022-09-29 20:57:25,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=4283, Unknown=0, NotChecked=0, Total=4556 [2022-09-29 20:57:25,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:57:25,256 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 20:57:25,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 67 states have (on average 24.313432835820894) internal successors, (1629), 68 states have internal predecessors, (1629), 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) [2022-09-29 20:57:25,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:57:25,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:57:25,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:57:25,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2022-09-29 20:57:25,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-09-29 20:57:25,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:57:25,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:57:25,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:57:25,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:57:25,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-09-29 20:57:25,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-09-29 20:57:25,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-09-29 20:57:25,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:58:09,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:58:09,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:58:09,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:58:09,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-09-29 20:58:09,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-09-29 20:58:09,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:58:09,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:58:09,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:58:09,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:58:09,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-29 20:58:09,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-09-29 20:58:09,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-09-29 20:58:09,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-09-29 20:58:09,429 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-09-29 20:58:09,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-09-29 20:58:09,613 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 20:58:09,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 20:58:09,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1895850753, now seen corresponding path program 3 times [2022-09-29 20:58:09,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 20:58:09,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333805824] [2022-09-29 20:58:09,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 20:58:09,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 20:58:09,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 20:58:10,228 INFO L134 CoverageAnalysis]: Checked inductivity of 1645 backedges. 812 proven. 563 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-09-29 20:58:10,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 20:58:10,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333805824] [2022-09-29 20:58:10,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333805824] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 20:58:10,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1036457715] [2022-09-29 20:58:10,229 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-09-29 20:58:10,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 20:58:10,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 20:58:10,230 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-29 20:58:10,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-09-29 20:58:10,408 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-09-29 20:58:10,408 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-29 20:58:10,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 42 conjunts are in the unsatisfiable core [2022-09-29 20:58:10,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 20:58:11,327 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2022-09-29 20:58:11,380 INFO L134 CoverageAnalysis]: Checked inductivity of 1645 backedges. 511 proven. 32 refuted. 0 times theorem prover too weak. 1102 trivial. 0 not checked. [2022-09-29 20:58:11,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-29 20:58:11,590 INFO L356 Elim1Store]: treesize reduction 4, result has 69.2 percent of original size [2022-09-29 20:58:11,590 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 21 [2022-09-29 20:58:11,638 INFO L134 CoverageAnalysis]: Checked inductivity of 1645 backedges. 543 proven. 0 refuted. 0 times theorem prover too weak. 1102 trivial. 0 not checked. [2022-09-29 20:58:11,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1036457715] provided 1 perfect and 1 imperfect interpolant sequences [2022-09-29 20:58:11,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-09-29 20:58:11,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [15, 17] total 35 [2022-09-29 20:58:11,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433199768] [2022-09-29 20:58:11,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 20:58:11,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-29 20:58:11,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 20:58:11,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-29 20:58:11,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=1095, Unknown=0, NotChecked=0, Total=1190 [2022-09-29 20:58:11,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:58:11,643 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 20:58:11,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 45.36363636363637) internal successors, (499), 11 states have internal predecessors, (499), 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) [2022-09-29 20:58:11,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:58:11,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:58:11,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:58:11,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2022-09-29 20:58:11,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-09-29 20:58:11,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:58:11,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:58:11,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:58:11,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:58:11,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-09-29 20:58:11,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-09-29 20:58:11,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-09-29 20:58:11,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-09-29 20:58:11,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:58:57,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:58:57,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:58:57,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:58:57,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-09-29 20:58:57,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-09-29 20:58:57,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:58:57,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:58:57,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:58:57,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:58:57,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-29 20:58:57,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-09-29 20:58:57,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-09-29 20:58:57,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-09-29 20:58:57,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-09-29 20:58:57,838 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-09-29 20:58:58,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-09-29 20:58:58,036 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 20:58:58,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 20:58:58,036 INFO L85 PathProgramCache]: Analyzing trace with hash 753726145, now seen corresponding path program 1 times [2022-09-29 20:58:58,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 20:58:58,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343230934] [2022-09-29 20:58:58,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 20:58:58,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 20:58:58,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 20:58:58,192 INFO L134 CoverageAnalysis]: Checked inductivity of 1555 backedges. 692 proven. 0 refuted. 0 times theorem prover too weak. 863 trivial. 0 not checked. [2022-09-29 20:58:58,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 20:58:58,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343230934] [2022-09-29 20:58:58,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343230934] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 20:58:58,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 20:58:58,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-29 20:58:58,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622376845] [2022-09-29 20:58:58,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 20:58:58,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-29 20:58:58,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 20:58:58,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-29 20:58:58,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-09-29 20:58:58,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:58:58,194 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 20:58:58,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 101.6) internal successors, (508), 5 states have internal predecessors, (508), 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) [2022-09-29 20:58:58,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:58:58,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:58:58,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:58:58,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2022-09-29 20:58:58,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-09-29 20:58:58,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:58:58,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:58:58,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:58:58,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:58:58,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-09-29 20:58:58,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-09-29 20:58:58,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-09-29 20:58:58,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-09-29 20:58:58,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-09-29 20:58:58,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.