/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.line1801.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-e57bdd3-m [2022-10-24 14:51:29,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-24 14:51:29,450 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-24 14:51:29,470 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-24 14:51:29,470 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-24 14:51:29,471 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-24 14:51:29,472 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-24 14:51:29,473 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-24 14:51:29,476 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-24 14:51:29,477 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-24 14:51:29,477 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-24 14:51:29,478 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-24 14:51:29,478 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-24 14:51:29,479 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-24 14:51:29,480 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-24 14:51:29,480 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-24 14:51:29,481 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-24 14:51:29,481 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-24 14:51:29,482 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-24 14:51:29,484 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-24 14:51:29,484 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-24 14:51:29,491 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-24 14:51:29,492 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-24 14:51:29,494 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-24 14:51:29,500 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-24 14:51:29,501 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-24 14:51:29,501 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-24 14:51:29,501 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-24 14:51:29,502 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-24 14:51:29,502 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-24 14:51:29,502 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-24 14:51:29,503 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-24 14:51:29,503 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-24 14:51:29,504 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-24 14:51:29,504 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-24 14:51:29,505 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-24 14:51:29,505 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-24 14:51:29,505 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-24 14:51:29,505 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-24 14:51:29,506 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-24 14:51:29,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-24 14:51:29,513 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-24 14:51:29,553 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-24 14:51:29,553 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-24 14:51:29,554 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-24 14:51:29,554 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-24 14:51:29,555 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-24 14:51:29,555 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-24 14:51:29,557 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-24 14:51:29,557 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-24 14:51:29,557 INFO L138 SettingsManager]: * Use SBE=true [2022-10-24 14:51:29,557 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-24 14:51:29,558 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-24 14:51:29,558 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-24 14:51:29,558 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-24 14:51:29,558 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-24 14:51:29,558 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-24 14:51:29,559 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-24 14:51:29,559 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-24 14:51:29,559 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-24 14:51:29,559 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-24 14:51:29,559 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-24 14:51:29,559 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-24 14:51:29,559 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-24 14:51:29,559 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-24 14:51:29,560 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-24 14:51:29,560 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-24 14:51:29,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-24 14:51:29,560 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-24 14:51:29,560 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-24 14:51:29,560 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-24 14:51:29,560 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-24 14:51:29,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-24 14:51:29,561 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-24 14:51:29,561 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-24 14:51:29,561 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-24 14:51:29,561 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-24 14:51:29,561 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-24 14:51:29,562 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-24 14:51:29,562 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-24 14:51:29,562 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> BADGER [2022-10-24 14:51:29,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-24 14:51:29,900 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-24 14:51:29,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-24 14:51:29,903 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-24 14:51:29,904 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-24 14:51:29,906 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk26/divinefifo_1w1r.line1801.bpl [2022-10-24 14:51:29,906 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk26/divinefifo_1w1r.line1801.bpl' [2022-10-24 14:51:29,992 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-24 14:51:29,994 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-10-24 14:51:29,995 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-24 14:51:29,995 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-24 14:51:29,995 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-24 14:51:30,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "divinefifo_1w1r.line1801.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:51:29" (1/1) ... [2022-10-24 14:51:30,035 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "divinefifo_1w1r.line1801.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:51:29" (1/1) ... [2022-10-24 14:51:30,055 INFO L138 Inliner]: procedures = 2, calls = 1, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-10-24 14:51:30,056 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-24 14:51:30,061 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-24 14:51:30,061 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-24 14:51:30,061 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-24 14:51:30,067 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "divinefifo_1w1r.line1801.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:51:29" (1/1) ... [2022-10-24 14:51:30,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "divinefifo_1w1r.line1801.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:51:29" (1/1) ... [2022-10-24 14:51:30,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "divinefifo_1w1r.line1801.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:51:29" (1/1) ... [2022-10-24 14:51:30,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "divinefifo_1w1r.line1801.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:51:29" (1/1) ... [2022-10-24 14:51:30,112 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "divinefifo_1w1r.line1801.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:51:29" (1/1) ... [2022-10-24 14:51:30,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "divinefifo_1w1r.line1801.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:51:29" (1/1) ... [2022-10-24 14:51:30,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "divinefifo_1w1r.line1801.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:51:29" (1/1) ... [2022-10-24 14:51:30,130 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-24 14:51:30,131 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-24 14:51:30,131 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-24 14:51:30,131 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-24 14:51:30,132 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "divinefifo_1w1r.line1801.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:51:29" (1/1) ... [2022-10-24 14:51:30,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-24 14:51:30,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 14:51:30,189 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 14:51:30,226 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 14:51:30,272 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2022-10-24 14:51:30,272 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2022-10-24 14:51:30,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-24 14:51:30,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-24 14:51:30,274 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 14:51:30,479 INFO L234 CfgBuilder]: Building ICFG [2022-10-24 14:51:30,480 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-24 14:51:31,449 INFO L275 CfgBuilder]: Performing block encoding [2022-10-24 14:51:31,467 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-24 14:51:31,468 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-24 14:51:31,470 INFO L202 PluginConnector]: Adding new model divinefifo_1w1r.line1801.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:51:31 BoogieIcfgContainer [2022-10-24 14:51:31,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-24 14:51:31,471 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-24 14:51:31,471 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-24 14:51:31,473 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-24 14:51:31,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo_1w1r.line1801.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 02:51:29" (1/2) ... [2022-10-24 14:51:31,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45fa30c0 and model type divinefifo_1w1r.line1801.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:51:31, skipping insertion in model container [2022-10-24 14:51:31,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo_1w1r.line1801.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:51:31" (2/2) ... [2022-10-24 14:51:31,475 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo_1w1r.line1801.bpl [2022-10-24 14:51:31,480 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-24 14:51:31,486 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-24 14:51:31,486 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-24 14:51:31,486 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-24 14:51:31,576 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-10-24 14:51:31,613 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-24 14:51:31,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-24 14:51:31,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-24 14:51:31,628 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 14:51:31,634 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 14:51:31,655 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-24 14:51:31,660 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-10-24 14:51:31,665 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;@9cf4efa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-24 14:51:31,665 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-24 14:51:31,822 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 14:51:31,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 14:51:31,825 INFO L85 PathProgramCache]: Analyzing trace with hash -463959210, now seen corresponding path program 1 times [2022-10-24 14:51:31,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 14:51:31,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42254020] [2022-10-24 14:51:31,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 14:51:31,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 14:51:31,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 14:51:32,242 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 14:51:32,243 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 14:51:32,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42254020] [2022-10-24 14:51:32,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42254020] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 14:51:32,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 14:51:32,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-24 14:51:32,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885733060] [2022-10-24 14:51:32,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 14:51:32,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-24 14:51:32,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 14:51:32,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-24 14:51:32,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-24 14:51:32,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:51:32,288 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 14:51:32,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 199.0) internal successors, (398), 2 states have internal predecessors, (398), 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 14:51:32,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:51:32,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:51:32,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-24 14:51:32,492 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 14:51:32,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 14:51:32,493 INFO L85 PathProgramCache]: Analyzing trace with hash 209777629, now seen corresponding path program 1 times [2022-10-24 14:51:32,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 14:51:32,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515124118] [2022-10-24 14:51:32,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 14:51:32,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 14:51:32,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 14:51:32,616 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 14:51:32,616 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 14:51:32,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515124118] [2022-10-24 14:51:32,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515124118] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-24 14:51:32,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-24 14:51:32,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-24 14:51:32,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985817615] [2022-10-24 14:51:32,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-24 14:51:32,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-24 14:51:32,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 14:51:32,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-24 14:51:32,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-24 14:51:32,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:51:32,619 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 14:51:32,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 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 14:51:32,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:51:32,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:51:33,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:51:33,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-24 14:51:33,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-24 14:51:33,596 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 14:51:33,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 14:51:33,597 INFO L85 PathProgramCache]: Analyzing trace with hash -40226480, now seen corresponding path program 1 times [2022-10-24 14:51:33,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 14:51:33,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135268828] [2022-10-24 14:51:33,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 14:51:33,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 14:51:33,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 14:51:36,824 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 14:51:36,824 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 14:51:36,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135268828] [2022-10-24 14:51:36,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135268828] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-24 14:51:36,825 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-24 14:51:36,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2022-10-24 14:51:36,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372873820] [2022-10-24 14:51:36,825 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-24 14:51:36,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-24 14:51:36,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 14:51:36,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-24 14:51:36,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-24 14:51:36,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:51:36,829 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 14:51:36,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 281.25) internal successors, (1125), 4 states have internal predecessors, (1125), 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 14:51:36,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:51:36,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-24 14:51:36,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:51:38,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:51:38,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-24 14:51:38,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-24 14:51:38,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-24 14:51:38,190 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 14:51:38,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 14:51:38,191 INFO L85 PathProgramCache]: Analyzing trace with hash -2001022125, now seen corresponding path program 2 times [2022-10-24 14:51:38,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 14:51:38,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291877714] [2022-10-24 14:51:38,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 14:51:38,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 14:51:39,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 14:51:47,232 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 14:51:47,233 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 14:51:47,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291877714] [2022-10-24 14:51:47,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291877714] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-24 14:51:47,233 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-24 14:51:47,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2022-10-24 14:51:47,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823405384] [2022-10-24 14:51:47,237 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-24 14:51:47,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-24 14:51:47,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 14:51:47,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-24 14:51:47,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-24 14:51:47,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:51:47,244 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 14:51:47,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 371.0) internal successors, (1855), 5 states have internal predecessors, (1855), 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 14:51:47,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:51:47,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-24 14:51:47,249 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-24 14:51:47,249 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:51:49,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:51:49,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-24 14:51:49,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-24 14:51:49,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-24 14:51:49,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-24 14:51:49,260 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 14:51:49,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 14:51:49,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1329314606, now seen corresponding path program 3 times [2022-10-24 14:51:49,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 14:51:49,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908529310] [2022-10-24 14:51:49,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 14:51:49,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 14:51:51,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 14:52:03,096 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 14:52:03,097 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 14:52:03,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908529310] [2022-10-24 14:52:03,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908529310] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-24 14:52:03,097 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-24 14:52:03,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2022-10-24 14:52:03,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664432556] [2022-10-24 14:52:03,098 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-24 14:52:03,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-24 14:52:03,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 14:52:03,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-24 14:52:03,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-24 14:52:03,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:52:03,103 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 14:52:03,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 430.8333333333333) internal successors, (2585), 6 states have internal predecessors, (2585), 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 14:52:03,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:52:03,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-24 14:52:03,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-24 14:52:03,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-24 14:52:03,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:52:05,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:52:05,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-24 14:52:05,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-24 14:52:05,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-24 14:52:05,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-24 14:52:05,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-24 14:52:05,450 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 14:52:05,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 14:52:05,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1558126301, now seen corresponding path program 4 times [2022-10-24 14:52:05,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 14:52:05,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127728532] [2022-10-24 14:52:05,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 14:52:05,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-24 14:52:08,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-24 14:52:26,199 INFO L134 CoverageAnalysis]: Checked inductivity of 120047 backedges. 274 proven. 92833 refuted. 0 times theorem prover too weak. 26940 trivial. 0 not checked. [2022-10-24 14:52:26,199 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-24 14:52:26,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127728532] [2022-10-24 14:52:26,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127728532] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-24 14:52:26,199 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-24 14:52:26,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2022-10-24 14:52:26,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755305834] [2022-10-24 14:52:26,201 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-24 14:52:26,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-24 14:52:26,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-24 14:52:26,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-24 14:52:26,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-24 14:52:26,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:52:26,211 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-24 14:52:26,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 473.57142857142856) internal successors, (3315), 7 states have internal predecessors, (3315), 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 14:52:26,226 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:52:26,226 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-24 14:52:26,226 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-24 14:52:26,226 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-24 14:52:26,226 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-24 14:52:26,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:52:29,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-24 14:52:29,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-24 14:52:29,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-24 14:52:29,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-24 14:52:29,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-24 14:52:29,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-24 14:52:29,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-24 14:52:29,799 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-24 14:52:29,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-24 14:52:29,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1721115208, now seen corresponding path program 5 times [2022-10-24 14:52:29,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-24 14:52:29,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695165361] [2022-10-24 14:52:29,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-24 14:52:29,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms