/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION --traceabstraction.trace.refinement.strategy BADGER -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk27/chl-nzb-file-subst.wvr.line872.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-e57bdd3-m [2022-10-24 17:27:02,886 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-24 17:27:02,892 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-24 17:27:02,917 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-24 17:27:02,918 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-24 17:27:02,921 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-24 17:27:02,923 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-24 17:27:02,928 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-24 17:27:02,932 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-24 17:27:02,937 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-24 17:27:02,937 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-24 17:27:02,938 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-24 17:27:02,938 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-24 17:27:02,939 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-24 17:27:02,939 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-24 17:27:02,940 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-24 17:27:02,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-24 17:27:02,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-24 17:27:02,942 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-24 17:27:02,943 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-24 17:27:02,944 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-24 17:27:02,947 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-24 17:27:02,948 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-24 17:27:02,950 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-24 17:27:02,958 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-24 17:27:02,958 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-24 17:27:02,958 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-24 17:27:02,959 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-24 17:27:02,959 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-24 17:27:02,960 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-24 17:27:02,960 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-24 17:27:02,960 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-24 17:27:02,961 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-24 17:27:02,961 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-24 17:27:02,962 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-24 17:27:02,962 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-24 17:27:02,962 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-24 17:27:02,963 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-24 17:27:02,963 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-24 17:27:02,963 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-24 17:27:02,964 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-24 17:27:02,967 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-24 17:27:02,999 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-24 17:27:02,999 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-24 17:27:03,000 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-24 17:27:03,000 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-24 17:27:03,001 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-24 17:27:03,001 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-24 17:27:03,003 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-24 17:27:03,003 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-24 17:27:03,003 INFO L138 SettingsManager]: * Use SBE=true [2022-10-24 17:27:03,003 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-24 17:27:03,004 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-24 17:27:03,004 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-24 17:27:03,004 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-24 17:27:03,004 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-24 17:27:03,004 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-24 17:27:03,005 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-24 17:27:03,005 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-24 17:27:03,005 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-24 17:27:03,005 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-24 17:27:03,005 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-24 17:27:03,005 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-24 17:27:03,005 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-24 17:27:03,005 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-24 17:27:03,005 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-24 17:27:03,005 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-24 17:27:03,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-24 17:27:03,006 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-24 17:27:03,006 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-24 17:27:03,006 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-24 17:27:03,006 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-24 17:27:03,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-24 17:27:03,006 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-24 17:27:03,006 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-24 17:27:03,006 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-24 17:27:03,006 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-24 17:27:03,007 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-24 17:27:03,007 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-24 17:27:03,007 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-24 17:27:03,007 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> BADGER [2022-10-24 17:27:03,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-24 17:27:03,335 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-24 17:27:03,337 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-24 17:27:03,338 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-24 17:27:03,339 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-24 17:27:03,340 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk27/chl-nzb-file-subst.wvr.line872.bpl [2022-10-24 17:27:03,341 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk27/chl-nzb-file-subst.wvr.line872.bpl' [2022-10-24 17:27:03,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-24 17:27:03,407 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-10-24 17:27:03,408 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-24 17:27:03,408 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-24 17:27:03,408 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-24 17:27:03,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "chl-nzb-file-subst.wvr.line872.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 05:27:03" (1/1) ... [2022-10-24 17:27:03,450 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "chl-nzb-file-subst.wvr.line872.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 05:27:03" (1/1) ... [2022-10-24 17:27:03,457 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-10-24 17:27:03,458 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-24 17:27:03,460 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-24 17:27:03,460 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-24 17:27:03,460 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-24 17:27:03,465 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "chl-nzb-file-subst.wvr.line872.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 05:27:03" (1/1) ... [2022-10-24 17:27:03,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "chl-nzb-file-subst.wvr.line872.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 05:27:03" (1/1) ... [2022-10-24 17:27:03,484 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "chl-nzb-file-subst.wvr.line872.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 05:27:03" (1/1) ... [2022-10-24 17:27:03,485 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "chl-nzb-file-subst.wvr.line872.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 05:27:03" (1/1) ... [2022-10-24 17:27:03,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "chl-nzb-file-subst.wvr.line872.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 05:27:03" (1/1) ... [2022-10-24 17:27:03,519 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "chl-nzb-file-subst.wvr.line872.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 05:27:03" (1/1) ... [2022-10-24 17:27:03,523 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "chl-nzb-file-subst.wvr.line872.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 05:27:03" (1/1) ... [2022-10-24 17:27:03,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-24 17:27:03,537 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-24 17:27:03,537 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-24 17:27:03,537 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-24 17:27:03,541 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "chl-nzb-file-subst.wvr.line872.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 05:27:03" (1/1) ... [2022-10-24 17:27:03,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-24 17:27:03,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 17:27:03,566 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) [2022-10-24 17:27:03,592 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 [2022-10-24 17:27:03,606 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-10-24 17:27:03,606 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-10-24 17:27:03,606 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-10-24 17:27:03,607 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-10-24 17:27:03,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-24 17:27:03,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-24 17:27:03,607 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-10-24 17:27:03,607 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-10-24 17:27:03,609 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-24 17:27:03,762 INFO L234 CfgBuilder]: Building ICFG [2022-10-24 17:27:03,763 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-24 17:27:04,625 INFO L275 CfgBuilder]: Performing block encoding [2022-10-24 17:27:04,660 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-24 17:27:04,661 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-10-24 17:27:04,663 INFO L202 PluginConnector]: Adding new model chl-nzb-file-subst.wvr.line872.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 05:27:04 BoogieIcfgContainer [2022-10-24 17:27:04,663 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-24 17:27:04,665 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-24 17:27:04,665 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-24 17:27:04,667 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-24 17:27:04,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "chl-nzb-file-subst.wvr.line872.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 05:27:03" (1/2) ... [2022-10-24 17:27:04,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30e0b1f0 and model type chl-nzb-file-subst.wvr.line872.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 05:27:04, skipping insertion in model container [2022-10-24 17:27:04,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "chl-nzb-file-subst.wvr.line872.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 05:27:04" (2/2) ... [2022-10-24 17:27:04,669 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-subst.wvr.line872.bpl [2022-10-24 17:27:04,678 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-24 17:27:04,685 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-24 17:27:04,686 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-24 17:27:04,686 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-24 17:27:04,808 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-10-24 17:27:04,859 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-24 17:27:04,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-24 17:27:04,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 17:27:04,861 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) [2022-10-24 17:27:04,862 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 [2022-10-24 17:27:04,917 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-24 17:27:04,922 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-24 17:27:04,927 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;@28aa97c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 17:27:04,927 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-24 17:27:05,035 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-24 17:27:05,041 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-24 17:27:05,045 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (1/5) [2022-10-24 17:27:05,062 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-24 17:27:05,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-24 17:27:05,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 17:27:05,064 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) [2022-10-24 17:27:05,066 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 [2022-10-24 17:27:05,071 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-24 17:27:05,071 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-24 17:27:05,072 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;@28aa97c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 17:27:05,072 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-24 17:27:33,012 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-24 17:27:33,013 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-24 17:27:33,013 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (2/5) [2022-10-24 17:27:33,033 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-24 17:27:33,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-24 17:27:33,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 17:27:33,075 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) [2022-10-24 17:27:33,081 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-24 17:27:33,082 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-24 17:27:33,082 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;@28aa97c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 17:27:33,083 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-24 17:27:33,091 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 [2022-10-24 17:27:33,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-24 17:27:33,263 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-24 17:27:33,263 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (3/5) [2022-10-24 17:27:33,271 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-24 17:27:33,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-24 17:27:33,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 17:27:33,273 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) [2022-10-24 17:27:33,274 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 [2022-10-24 17:27:33,277 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-24 17:27:33,277 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread3Err0ASSERT_VIOLATIONASSERT ======== [2022-10-24 17:27:33,278 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;@28aa97c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 17:27:33,278 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-24 17:27:33,278 WARN L124 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2022-10-24 17:27:33,279 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-10-24 17:27:33,279 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-24 17:27:33,279 INFO L307 ceAbstractionStarter]: Result for error location thread3Err0ASSERT_VIOLATIONASSERT was SAFE (4/5) [2022-10-24 17:27:33,286 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-24 17:27:33,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-24 17:27:33,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 17:27:33,288 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-24 17:27:33,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2022-10-24 17:27:33,292 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-24 17:27:33,293 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread3Err0ASSERT_VIOLATIONASSERT ======== [2022-10-24 17:27:33,293 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;@28aa97c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 17:27:33,293 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-24 17:27:33,368 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread3Err0ASSERT_VIOLATIONASSERT === [thread3Err0ASSERT_VIOLATIONASSERT] === [2022-10-24 17:27:33,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 17:27:33,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1483649861, now seen corresponding path program 1 times [2022-10-24 17:27:33,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 17:27:33,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268984414] [2022-10-24 17:27:33,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 17:27:33,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 17:27:33,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 17:27:33,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-24 17:27:33,931 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 17:27:33,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268984414] [2022-10-24 17:27:33,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268984414] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 17:27:33,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 17:27:33,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-24 17:27:33,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549386055] [2022-10-24 17:27:33,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 17:27:33,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-24 17:27:33,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 17:27:33,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-24 17:27:33,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-24 17:27:33,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:27:33,958 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 17:27:33,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 176.5) internal successors, (353), 2 states have internal predecessors, (353), 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) [2022-10-24 17:27:33,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:28:36,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:28:36,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-24 17:28:36,148 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread3Err0ASSERT_VIOLATIONASSERT === [thread3Err0ASSERT_VIOLATIONASSERT] === [2022-10-24 17:28:36,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 17:28:36,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1961511372, now seen corresponding path program 1 times [2022-10-24 17:28:36,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 17:28:36,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51087120] [2022-10-24 17:28:36,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 17:28:36,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 17:28:36,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 17:28:36,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-24 17:28:36,387 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 17:28:36,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51087120] [2022-10-24 17:28:36,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51087120] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 17:28:36,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 17:28:36,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-24 17:28:36,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861608917] [2022-10-24 17:28:36,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 17:28:36,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-24 17:28:36,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 17:28:36,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-24 17:28:36,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-24 17:28:36,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:28:36,392 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 17:28:36,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.0) internal successors, (345), 5 states have internal predecessors, (345), 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) [2022-10-24 17:28:36,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:28:36,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:29:10,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:29:10,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-24 17:29:10,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-24 17:29:10,921 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread3Err0ASSERT_VIOLATIONASSERT === [thread3Err0ASSERT_VIOLATIONASSERT] === [2022-10-24 17:29:10,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 17:29:10,922 INFO L85 PathProgramCache]: Analyzing trace with hash 916221374, now seen corresponding path program 1 times [2022-10-24 17:29:10,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 17:29:10,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846328824] [2022-10-24 17:29:10,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 17:29:10,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 17:29:11,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 17:29:11,140 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-24 17:29:11,141 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 17:29:11,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846328824] [2022-10-24 17:29:11,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846328824] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-24 17:29:11,142 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-24 17:29:11,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2022-10-24 17:29:11,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136921755] [2022-10-24 17:29:11,142 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-24 17:29:11,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-24 17:29:11,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 17:29:11,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-24 17:29:11,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-24 17:29:11,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:29:11,144 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 17:29:11,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 54.857142857142854) internal successors, (384), 7 states have internal predecessors, (384), 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) [2022-10-24 17:29:11,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:29:11,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-24 17:29:11,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:29:51,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:29:51,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-24 17:29:51,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-24 17:29:51,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-24 17:29:51,194 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread3Err0ASSERT_VIOLATIONASSERT === [thread3Err0ASSERT_VIOLATIONASSERT] === [2022-10-24 17:29:51,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 17:29:51,195 INFO L85 PathProgramCache]: Analyzing trace with hash 689189812, now seen corresponding path program 2 times [2022-10-24 17:29:51,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 17:29:51,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601472531] [2022-10-24 17:29:51,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 17:29:51,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 17:29:51,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 17:29:51,422 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-24 17:29:51,422 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 17:29:51,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601472531] [2022-10-24 17:29:51,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601472531] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-24 17:29:51,422 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-24 17:29:51,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2022-10-24 17:29:51,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634733490] [2022-10-24 17:29:51,423 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-24 17:29:51,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-24 17:29:51,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 17:29:51,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-24 17:29:51,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-10-24 17:29:51,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:29:51,425 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 17:29:51,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 44.111111111111114) internal successors, (397), 9 states have internal predecessors, (397), 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) [2022-10-24 17:29:51,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:29:51,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-24 17:29:51,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-24 17:29:51,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:30:29,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:30:29,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-24 17:30:29,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-24 17:30:29,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-24 17:30:29,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-24 17:30:29,076 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread3Err0ASSERT_VIOLATIONASSERT === [thread3Err0ASSERT_VIOLATIONASSERT] === [2022-10-24 17:30:29,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 17:30:29,076 INFO L85 PathProgramCache]: Analyzing trace with hash -779593666, now seen corresponding path program 3 times [2022-10-24 17:30:29,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 17:30:29,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118132543] [2022-10-24 17:30:29,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 17:30:29,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 17:30:29,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 17:30:29,243 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-10-24 17:30:29,244 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 17:30:29,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118132543] [2022-10-24 17:30:29,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118132543] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-24 17:30:29,246 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-24 17:30:29,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2022-10-24 17:30:29,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34645154] [2022-10-24 17:30:29,246 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-24 17:30:29,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-24 17:30:29,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 17:30:29,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-24 17:30:29,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-10-24 17:30:29,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:30:29,249 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 17:30:29,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 37.27272727272727) internal successors, (410), 11 states have internal predecessors, (410), 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) [2022-10-24 17:30:29,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:30:29,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-24 17:30:29,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-24 17:30:29,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-10-24 17:30:29,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:31:13,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:31:13,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-24 17:31:13,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-24 17:31:13,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-24 17:31:13,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-24 17:31:13,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-24 17:31:13,291 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread3Err0ASSERT_VIOLATIONASSERT === [thread3Err0ASSERT_VIOLATIONASSERT] === [2022-10-24 17:31:13,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 17:31:13,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1941593804, now seen corresponding path program 4 times [2022-10-24 17:31:13,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 17:31:13,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578616280] [2022-10-24 17:31:13,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 17:31:13,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 17:31:13,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 17:31:13,458 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2022-10-24 17:31:13,458 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 17:31:13,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578616280] [2022-10-24 17:31:13,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578616280] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-24 17:31:13,458 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-24 17:31:13,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2022-10-24 17:31:13,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496734274] [2022-10-24 17:31:13,459 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-24 17:31:13,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-24 17:31:13,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 17:31:13,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-24 17:31:13,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-10-24 17:31:13,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:31:13,462 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 17:31:13,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 32.53846153846154) internal successors, (423), 13 states have internal predecessors, (423), 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) [2022-10-24 17:31:13,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:31:13,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-24 17:31:13,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-24 17:31:13,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-10-24 17:31:13,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-10-24 17:31:13,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:31:54,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:31:54,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-24 17:31:54,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-24 17:31:54,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-24 17:31:54,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-24 17:31:54,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-24 17:31:54,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-24 17:31:54,819 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread3Err0ASSERT_VIOLATIONASSERT === [thread3Err0ASSERT_VIOLATIONASSERT] === [2022-10-24 17:31:54,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 17:31:54,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1351789890, now seen corresponding path program 5 times [2022-10-24 17:31:54,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 17:31:54,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112663984] [2022-10-24 17:31:54,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 17:31:54,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 17:31:54,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 17:31:55,113 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 389 trivial. 0 not checked. [2022-10-24 17:31:55,114 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 17:31:55,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112663984] [2022-10-24 17:31:55,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112663984] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-24 17:31:55,114 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-24 17:31:55,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2022-10-24 17:31:55,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564857551] [2022-10-24 17:31:55,115 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-24 17:31:55,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-24 17:31:55,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 17:31:55,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-24 17:31:55,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-10-24 17:31:55,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:31:55,117 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 17:31:55,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 27.785714285714285) internal successors, (389), 15 states have internal predecessors, (389), 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) [2022-10-24 17:31:55,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:31:55,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-24 17:31:55,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-24 17:31:55,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-10-24 17:31:55,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-10-24 17:31:55,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-10-24 17:31:55,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:33:04,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:33:04,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-24 17:33:04,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-24 17:33:04,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-24 17:33:04,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-24 17:33:04,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-24 17:33:04,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-24 17:33:04,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-24 17:33:04,163 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err0ASSERT_VIOLATIONASSERT === [thread3Err0ASSERT_VIOLATIONASSERT] === [2022-10-24 17:33:04,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 17:33:04,172 INFO L85 PathProgramCache]: Analyzing trace with hash -2037830768, now seen corresponding path program 1 times [2022-10-24 17:33:04,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 17:33:04,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468490572] [2022-10-24 17:33:04,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 17:33:04,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 17:33:04,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 17:33:04,364 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2022-10-24 17:33:04,365 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 17:33:04,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468490572] [2022-10-24 17:33:04,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468490572] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 17:33:04,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 17:33:04,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-24 17:33:04,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223266799] [2022-10-24 17:33:04,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 17:33:04,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-24 17:33:04,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 17:33:04,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-24 17:33:04,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-24 17:33:04,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:33:04,368 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 17:33:04,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 73.71428571428571) internal successors, (516), 7 states have internal predecessors, (516), 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) [2022-10-24 17:33:04,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 17:33:04,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-24 17:33:04,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-24 17:33:04,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-10-24 17:33:04,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-10-24 17:33:04,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-10-24 17:33:04,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-10-24 17:33:04,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.