/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/chunk26/divinefifo_1w1r.line1829.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-e57bdd3-m [2022-10-24 14:51:50,904 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-24 14:51:50,905 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-24 14:51:50,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-24 14:51:50,927 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-24 14:51:50,928 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-24 14:51:50,929 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-24 14:51:50,930 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-24 14:51:50,931 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-24 14:51:50,931 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-24 14:51:50,932 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-24 14:51:50,933 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-24 14:51:50,933 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-24 14:51:50,934 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-24 14:51:50,934 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-24 14:51:50,935 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-24 14:51:50,935 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-24 14:51:50,936 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-24 14:51:50,937 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-24 14:51:50,938 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-24 14:51:50,939 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-24 14:51:50,941 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-24 14:51:50,942 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-24 14:51:50,942 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-24 14:51:50,944 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-24 14:51:50,945 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-24 14:51:50,945 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-24 14:51:50,945 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-24 14:51:50,946 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-24 14:51:50,946 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-24 14:51:50,946 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-24 14:51:50,947 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-24 14:51:50,948 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-24 14:51:50,948 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-24 14:51:50,949 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-24 14:51:50,949 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-24 14:51:50,949 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-24 14:51:50,950 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-24 14:51:50,950 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-24 14:51:50,950 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-24 14:51:50,951 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-24 14:51:50,957 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-24 14:51:50,982 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-24 14:51:50,982 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-24 14:51:50,982 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-24 14:51:50,982 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-24 14:51:50,983 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-24 14:51:50,983 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-24 14:51:50,984 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-24 14:51:50,984 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-24 14:51:50,984 INFO L138 SettingsManager]: * Use SBE=true [2022-10-24 14:51:50,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-24 14:51:50,984 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-24 14:51:50,984 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-24 14:51:50,984 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-24 14:51:50,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-24 14:51:50,985 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-24 14:51:50,985 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-24 14:51:50,985 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-24 14:51:50,985 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-24 14:51:50,985 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-24 14:51:50,985 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-24 14:51:50,985 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-24 14:51:50,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-24 14:51:50,986 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-24 14:51:50,986 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-24 14:51:50,986 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-24 14:51:50,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-24 14:51:50,986 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-24 14:51:50,986 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-24 14:51:50,987 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-24 14:51:50,987 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-24 14:51:50,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-24 14:51:50,987 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-24 14:51:50,987 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-24 14:51:50,987 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-24 14:51:50,987 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-24 14:51:50,988 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-24 14:51:50,988 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-24 14:51:50,988 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-24 14:51:50,988 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> BADGER [2022-10-24 14:51:51,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-24 14:51:51,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-24 14:51:51,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-24 14:51:51,283 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-24 14:51:51,284 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-24 14:51:51,286 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk26/divinefifo_1w1r.line1829.bpl [2022-10-24 14:51:51,286 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk26/divinefifo_1w1r.line1829.bpl' [2022-10-24 14:51:51,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-24 14:51:51,360 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-10-24 14:51:51,361 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-24 14:51:51,361 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-24 14:51:51,361 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-24 14:51:51,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "divinefifo_1w1r.line1829.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:51:51" (1/1) ... [2022-10-24 14:51:51,403 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "divinefifo_1w1r.line1829.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:51:51" (1/1) ... [2022-10-24 14:51:51,414 INFO L138 Inliner]: procedures = 2, calls = 1, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-10-24 14:51:51,415 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-24 14:51:51,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-24 14:51:51,416 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-24 14:51:51,416 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-24 14:51:51,421 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "divinefifo_1w1r.line1829.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:51:51" (1/1) ... [2022-10-24 14:51:51,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "divinefifo_1w1r.line1829.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:51:51" (1/1) ... [2022-10-24 14:51:51,440 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "divinefifo_1w1r.line1829.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:51:51" (1/1) ... [2022-10-24 14:51:51,441 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "divinefifo_1w1r.line1829.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:51:51" (1/1) ... [2022-10-24 14:51:51,478 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "divinefifo_1w1r.line1829.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:51:51" (1/1) ... [2022-10-24 14:51:51,482 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "divinefifo_1w1r.line1829.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:51:51" (1/1) ... [2022-10-24 14:51:51,485 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "divinefifo_1w1r.line1829.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:51:51" (1/1) ... [2022-10-24 14:51:51,492 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-24 14:51:51,493 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-24 14:51:51,493 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-24 14:51:51,493 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-24 14:51:51,507 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "divinefifo_1w1r.line1829.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:51:51" (1/1) ... [2022-10-24 14:51:51,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-24 14:51:51,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 14:51:51,539 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 14:51:51,558 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 14:51:51,575 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2022-10-24 14:51:51,575 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2022-10-24 14:51:51,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-24 14:51:51,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-24 14:51:51,577 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 14:51:51,713 INFO L234 CfgBuilder]: Building ICFG [2022-10-24 14:51:51,715 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-24 14:51:52,559 INFO L275 CfgBuilder]: Performing block encoding [2022-10-24 14:51:52,573 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-24 14:51:52,573 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-24 14:51:52,575 INFO L202 PluginConnector]: Adding new model divinefifo_1w1r.line1829.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:51:52 BoogieIcfgContainer [2022-10-24 14:51:52,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-24 14:51:52,577 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-24 14:51:52,577 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-24 14:51:52,579 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-24 14:51:52,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo_1w1r.line1829.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:51:51" (1/2) ... [2022-10-24 14:51:52,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ec8df7a and model type divinefifo_1w1r.line1829.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:51:52, skipping insertion in model container [2022-10-24 14:51:52,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo_1w1r.line1829.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:51:52" (2/2) ... [2022-10-24 14:51:52,581 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo_1w1r.line1829.bpl [2022-10-24 14:51:52,586 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-24 14:51:52,591 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-24 14:51:52,591 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-24 14:51:52,591 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-24 14:51:52,680 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-10-24 14:51:52,716 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-24 14:51:52,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-24 14:51:52,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 14:51:52,718 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 14:51:52,733 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 14:51:52,744 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-24 14:51:52,749 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-10-24 14:51:52,753 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;@7909d89b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 14:51:52,753 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-24 14:51:52,962 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 14:51:52,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 14:51:52,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1427951570, now seen corresponding path program 1 times [2022-10-24 14:51:52,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 14:51:52,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334595033] [2022-10-24 14:51:52,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 14:51:52,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 14:51:53,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 14:51:53,332 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 14:51:53,332 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 14:51:53,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334595033] [2022-10-24 14:51:53,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334595033] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 14:51:53,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 14:51:53,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-24 14:51:53,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173217363] [2022-10-24 14:51:53,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 14:51:53,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-24 14:51:53,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 14:51:53,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-24 14:51:53,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-24 14:51:53,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:51:53,380 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 14:51:53,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 208.5) internal successors, (417), 2 states have internal predecessors, (417), 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 14:51:53,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:51:53,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:51:53,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-24 14:51:53,577 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 14:51:53,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 14:51:53,578 INFO L85 PathProgramCache]: Analyzing trace with hash -795505377, now seen corresponding path program 1 times [2022-10-24 14:51:53,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 14:51:53,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85041349] [2022-10-24 14:51:53,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 14:51:53,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 14:51:53,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 14:51:53,711 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 14:51:53,712 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 14:51:53,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85041349] [2022-10-24 14:51:53,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85041349] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 14:51:53,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 14:51:53,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-24 14:51:53,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366571836] [2022-10-24 14:51:53,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 14:51:53,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-24 14:51:53,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 14:51:53,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-24 14:51:53,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-24 14:51:53,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:51:53,715 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 14:51:53,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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 14:51:53,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:51:53,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:51:54,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:51:54,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-24 14:51:54,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-24 14:51:54,739 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 14:51:54,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 14:51:54,740 INFO L85 PathProgramCache]: Analyzing trace with hash 526192284, now seen corresponding path program 1 times [2022-10-24 14:51:54,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 14:51:54,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141476373] [2022-10-24 14:51:54,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 14:51:54,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 14:51:55,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 14:51:57,205 INFO L134 CoverageAnalysis]: Checked inductivity of 9782 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 9780 trivial. 0 not checked. [2022-10-24 14:51:57,206 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 14:51:57,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141476373] [2022-10-24 14:51:57,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141476373] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-24 14:51:57,207 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-24 14:51:57,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2022-10-24 14:51:57,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930340856] [2022-10-24 14:51:57,208 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-24 14:51:57,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-24 14:51:57,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 14:51:57,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-24 14:51:57,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-24 14:51:57,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:51:57,214 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 14:51:57,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 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 14:51:57,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:51:57,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-24 14:51:57,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:51:58,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:51:58,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-24 14:51:58,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-24 14:51:58,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-24 14:51:58,880 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 14:51:58,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 14:51:58,881 INFO L85 PathProgramCache]: Analyzing trace with hash -453691347, now seen corresponding path program 2 times [2022-10-24 14:51:58,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 14:51:58,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043905588] [2022-10-24 14:51:58,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 14:51:58,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 14:52:00,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 14:52:09,096 INFO L134 CoverageAnalysis]: Checked inductivity of 37348 backedges. 63 proven. 19945 refuted. 0 times theorem prover too weak. 17340 trivial. 0 not checked. [2022-10-24 14:52:09,096 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 14:52:09,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043905588] [2022-10-24 14:52:09,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043905588] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-24 14:52:09,097 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-24 14:52:09,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2022-10-24 14:52:09,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561426601] [2022-10-24 14:52:09,100 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-24 14:52:09,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-24 14:52:09,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 14:52:09,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-24 14:52:09,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-24 14:52:09,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:52:09,108 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 14:52:09,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 374.8) internal successors, (1874), 5 states have internal predecessors, (1874), 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 14:52:09,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:52:09,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-24 14:52:09,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-24 14:52:09,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:52:11,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:52:11,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-24 14:52:11,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-24 14:52:11,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-24 14:52:11,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-24 14:52:11,433 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 14:52:11,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 14:52:11,435 INFO L85 PathProgramCache]: Analyzing trace with hash -484191942, now seen corresponding path program 3 times [2022-10-24 14:52:11,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 14:52:11,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042768306] [2022-10-24 14:52:11,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 14:52:11,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 14:52:13,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 14:52:25,775 INFO L134 CoverageAnalysis]: Checked inductivity of 76038 backedges. 169 proven. 52904 refuted. 0 times theorem prover too weak. 22965 trivial. 0 not checked. [2022-10-24 14:52:25,776 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 14:52:25,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042768306] [2022-10-24 14:52:25,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042768306] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-24 14:52:25,776 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-24 14:52:25,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2022-10-24 14:52:25,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594723759] [2022-10-24 14:52:25,777 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-24 14:52:25,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-24 14:52:25,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 14:52:25,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-24 14:52:25,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-24 14:52:25,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:52:25,782 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 14:52:25,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 434.0) internal successors, (2604), 6 states have internal predecessors, (2604), 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 14:52:25,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:52:25,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-24 14:52:25,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-24 14:52:25,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-24 14:52:25,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:52:28,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:52:28,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-24 14:52:28,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-24 14:52:28,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-24 14:52:28,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-24 14:52:28,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-24 14:52:28,300 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 14:52:28,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 14:52:28,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1318368613, now seen corresponding path program 4 times [2022-10-24 14:52:28,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 14:52:28,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369831937] [2022-10-24 14:52:28,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 14:52:28,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 14:52:31,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat