/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/chunk08/safe012_rmo.oepc.line963.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-e57bdd3-m [2022-10-20 19:31:10,295 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-20 19:31:10,297 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-20 19:31:10,328 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-20 19:31:10,329 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-20 19:31:10,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-20 19:31:10,334 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-20 19:31:10,337 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-20 19:31:10,341 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-20 19:31:10,345 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-20 19:31:10,345 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-20 19:31:10,347 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-20 19:31:10,347 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-20 19:31:10,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-20 19:31:10,350 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-20 19:31:10,351 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-20 19:31:10,351 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-20 19:31:10,352 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-20 19:31:10,354 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-20 19:31:10,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-20 19:31:10,360 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-20 19:31:10,361 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-20 19:31:10,361 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-20 19:31:10,363 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-20 19:31:10,368 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-20 19:31:10,368 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-20 19:31:10,369 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-20 19:31:10,370 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-20 19:31:10,370 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-20 19:31:10,372 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-20 19:31:10,372 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-20 19:31:10,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-20 19:31:10,374 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-20 19:31:10,374 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-20 19:31:10,375 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-20 19:31:10,375 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-20 19:31:10,375 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-20 19:31:10,376 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-20 19:31:10,376 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-20 19:31:10,376 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-20 19:31:10,377 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-20 19:31:10,377 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-20 19:31:10,407 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-20 19:31:10,407 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-20 19:31:10,408 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-20 19:31:10,408 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-20 19:31:10,409 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-20 19:31:10,409 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-20 19:31:10,410 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-20 19:31:10,411 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-20 19:31:10,411 INFO L138 SettingsManager]: * Use SBE=true [2022-10-20 19:31:10,411 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-20 19:31:10,412 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-20 19:31:10,412 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-20 19:31:10,412 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-20 19:31:10,412 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-20 19:31:10,412 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-20 19:31:10,412 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-20 19:31:10,412 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-20 19:31:10,413 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-20 19:31:10,413 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-20 19:31:10,413 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-20 19:31:10,413 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-20 19:31:10,413 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-20 19:31:10,413 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-20 19:31:10,413 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-20 19:31:10,413 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-20 19:31:10,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-20 19:31:10,414 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-20 19:31:10,414 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-20 19:31:10,414 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-20 19:31:10,414 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-20 19:31:10,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-20 19:31:10,414 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-20 19:31:10,415 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-20 19:31:10,415 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-20 19:31:10,415 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-20 19:31:10,415 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-20 19:31:10,415 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-20 19:31:10,415 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-20 19:31:10,415 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> BADGER [2022-10-20 19:31:10,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-20 19:31:10,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-20 19:31:10,735 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-20 19:31:10,736 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-20 19:31:10,737 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-20 19:31:10,738 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk08/safe012_rmo.oepc.line963.bpl [2022-10-20 19:31:10,738 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk08/safe012_rmo.oepc.line963.bpl' [2022-10-20 19:31:10,784 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-20 19:31:10,785 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-10-20 19:31:10,786 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-20 19:31:10,786 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-20 19:31:10,786 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-20 19:31:10,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "safe012_rmo.oepc.line963.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 07:31:10" (1/1) ... [2022-10-20 19:31:10,807 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "safe012_rmo.oepc.line963.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 07:31:10" (1/1) ... [2022-10-20 19:31:10,813 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-10-20 19:31:10,814 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-20 19:31:10,815 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-20 19:31:10,815 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-20 19:31:10,815 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-20 19:31:10,821 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "safe012_rmo.oepc.line963.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 07:31:10" (1/1) ... [2022-10-20 19:31:10,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "safe012_rmo.oepc.line963.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 07:31:10" (1/1) ... [2022-10-20 19:31:10,826 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "safe012_rmo.oepc.line963.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 07:31:10" (1/1) ... [2022-10-20 19:31:10,826 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "safe012_rmo.oepc.line963.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 07:31:10" (1/1) ... [2022-10-20 19:31:10,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "safe012_rmo.oepc.line963.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 07:31:10" (1/1) ... [2022-10-20 19:31:10,843 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "safe012_rmo.oepc.line963.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 07:31:10" (1/1) ... [2022-10-20 19:31:10,845 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "safe012_rmo.oepc.line963.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 07:31:10" (1/1) ... [2022-10-20 19:31:10,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-20 19:31:10,850 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-20 19:31:10,850 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-20 19:31:10,850 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-20 19:31:10,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "safe012_rmo.oepc.line963.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 07:31:10" (1/1) ... [2022-10-20 19:31:10,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-20 19:31:10,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-20 19:31:10,872 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) [2022-10-20 19:31:10,879 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 [2022-10-20 19:31:10,918 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-10-20 19:31:10,918 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-10-20 19:31:10,919 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-10-20 19:31:10,919 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-10-20 19:31:10,919 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-10-20 19:31:10,919 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-10-20 19:31:10,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-20 19:31:10,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-20 19:31:10,920 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-20 19:31:11,023 INFO L234 CfgBuilder]: Building ICFG [2022-10-20 19:31:11,025 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-20 19:31:11,546 INFO L275 CfgBuilder]: Performing block encoding [2022-10-20 19:31:11,564 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-20 19:31:11,581 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-20 19:31:11,584 INFO L202 PluginConnector]: Adding new model safe012_rmo.oepc.line963.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 07:31:11 BoogieIcfgContainer [2022-10-20 19:31:11,584 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-20 19:31:11,586 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-20 19:31:11,586 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-20 19:31:11,588 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-20 19:31:11,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "safe012_rmo.oepc.line963.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.10 07:31:10" (1/2) ... [2022-10-20 19:31:11,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f109783 and model type safe012_rmo.oepc.line963.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 07:31:11, skipping insertion in model container [2022-10-20 19:31:11,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "safe012_rmo.oepc.line963.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 07:31:11" (2/2) ... [2022-10-20 19:31:11,590 INFO L112 eAbstractionObserver]: Analyzing ICFG safe012_rmo.oepc.line963.bpl [2022-10-20 19:31:11,599 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-20 19:31:11,606 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-20 19:31:11,607 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-20 19:31:11,607 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-20 19:31:11,734 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-10-20 19:31:11,785 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-20 19:31:11,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-20 19:31:11,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-20 19:31:11,787 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) [2022-10-20 19:31:11,800 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 [2022-10-20 19:31:11,830 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-20 19:31:11,836 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-10-20 19:31:11,841 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;@434fee98, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-20 19:31:11,841 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-20 19:31:12,011 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-20 19:31:12,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-20 19:31:12,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1051793230, now seen corresponding path program 1 times [2022-10-20 19:31:12,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-20 19:31:12,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323620125] [2022-10-20 19:31:12,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-20 19:31:12,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-20 19:31:12,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-20 19:31:12,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-20 19:31:12,302 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-20 19:31:12,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323620125] [2022-10-20 19:31:12,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323620125] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-20 19:31:12,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-20 19:31:12,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-20 19:31:12,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286247024] [2022-10-20 19:31:12,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-20 19:31:12,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-20 19:31:12,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-20 19:31:12,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-20 19:31:12,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-20 19:31:12,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 19:31:12,403 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-20 19:31:12,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 105.5) internal successors, (211), 2 states have internal predecessors, (211), 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) [2022-10-20 19:31:12,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-20 19:31:26,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 19:31:26,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-20 19:31:26,424 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-20 19:31:26,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-20 19:31:26,425 INFO L85 PathProgramCache]: Analyzing trace with hash -7184614, now seen corresponding path program 1 times [2022-10-20 19:31:26,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-20 19:31:26,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384542765] [2022-10-20 19:31:26,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-20 19:31:26,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-20 19:31:26,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-20 19:31:26,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-20 19:31:26,626 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-20 19:31:26,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384542765] [2022-10-20 19:31:26,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384542765] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-20 19:31:26,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-20 19:31:26,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-20 19:31:26,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991096491] [2022-10-20 19:31:26,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-20 19:31:26,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-20 19:31:26,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-20 19:31:26,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-20 19:31:26,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-20 19:31:26,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 19:31:26,631 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-20 19:31:26,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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) [2022-10-20 19:31:26,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-20 19:31:26,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-20 19:31:34,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 19:31:34,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-20 19:31:34,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-20 19:31:34,109 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-20 19:31:34,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-20 19:31:34,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1962730336, now seen corresponding path program 1 times [2022-10-20 19:31:34,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-20 19:31:34,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819669125] [2022-10-20 19:31:34,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-20 19:31:34,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-20 19:31:34,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-20 19:31:34,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-20 19:31:34,230 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-20 19:31:34,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819669125] [2022-10-20 19:31:34,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819669125] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-20 19:31:34,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-20 19:31:34,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-20 19:31:34,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121053349] [2022-10-20 19:31:34,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-20 19:31:34,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-20 19:31:34,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-20 19:31:34,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-20 19:31:34,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-20 19:31:34,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 19:31:34,233 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-20 19:31:34,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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) [2022-10-20 19:31:34,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-20 19:31:34,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-20 19:31:34,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-20 19:31:41,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 19:31:41,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-20 19:31:41,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-20 19:31:41,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-20 19:31:41,448 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-20 19:31:41,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-20 19:31:41,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1180368328, now seen corresponding path program 1 times [2022-10-20 19:31:41,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-20 19:31:41,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670424409] [2022-10-20 19:31:41,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-20 19:31:41,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-20 19:31:41,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-20 19:31:41,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-20 19:31:41,541 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-20 19:31:41,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670424409] [2022-10-20 19:31:41,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670424409] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-20 19:31:41,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-20 19:31:41,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-20 19:31:41,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28684747] [2022-10-20 19:31:41,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-20 19:31:41,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-20 19:31:41,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-20 19:31:41,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-20 19:31:41,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-20 19:31:41,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 19:31:41,554 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-20 19:31:41,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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) [2022-10-20 19:31:41,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-20 19:31:41,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-20 19:31:41,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-20 19:31:41,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-20 19:31:48,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 19:31:48,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-20 19:31:48,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-20 19:31:48,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-20 19:31:48,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-20 19:31:48,353 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-20 19:31:48,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-20 19:31:48,353 INFO L85 PathProgramCache]: Analyzing trace with hash -623319333, now seen corresponding path program 1 times [2022-10-20 19:31:48,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-20 19:31:48,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374283367] [2022-10-20 19:31:48,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-20 19:31:48,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-20 19:31:48,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-20 19:31:48,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-20 19:31:48,592 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-20 19:31:48,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374283367] [2022-10-20 19:31:48,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374283367] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-20 19:31:48,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-20 19:31:48,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-20 19:31:48,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001606616] [2022-10-20 19:31:48,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-20 19:31:48,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-20 19:31:48,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-20 19:31:48,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-20 19:31:48,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-20 19:31:48,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 19:31:48,594 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-20 19:31:48,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 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) [2022-10-20 19:31:48,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-20 19:31:48,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-20 19:31:48,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-20 19:31:48,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-20 19:31:48,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-20 19:31:56,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 19:31:56,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-20 19:31:56,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-20 19:31:56,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-20 19:31:56,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-20 19:31:56,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-20 19:31:56,386 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-20 19:31:56,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-20 19:31:56,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1536658789, now seen corresponding path program 2 times [2022-10-20 19:31:56,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-20 19:31:56,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894720612] [2022-10-20 19:31:56,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-20 19:31:56,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-20 19:31:56,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-20 19:31:56,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-20 19:31:56,554 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-20 19:31:56,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894720612] [2022-10-20 19:31:56,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894720612] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-20 19:31:56,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-20 19:31:56,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-20 19:31:56,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237639727] [2022-10-20 19:31:56,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-20 19:31:56,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-20 19:31:56,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-20 19:31:56,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-20 19:31:56,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-20 19:31:56,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 19:31:56,557 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-20 19:31:56,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 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) [2022-10-20 19:31:56,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-20 19:31:56,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-20 19:31:56,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-20 19:31:56,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-20 19:31:56,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-20 19:31:56,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-20 19:32:04,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 19:32:04,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-20 19:32:04,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-20 19:32:04,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-20 19:32:04,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-20 19:32:04,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-20 19:32:04,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-20 19:32:04,036 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-20 19:32:04,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-20 19:32:04,037 INFO L85 PathProgramCache]: Analyzing trace with hash -567719858, now seen corresponding path program 1 times [2022-10-20 19:32:04,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-20 19:32:04,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632159319] [2022-10-20 19:32:04,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-20 19:32:04,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-20 19:32:04,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-20 19:32:04,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-20 19:32:04,505 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-20 19:32:04,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632159319] [2022-10-20 19:32:04,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632159319] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-20 19:32:04,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-20 19:32:04,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-20 19:32:04,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075048684] [2022-10-20 19:32:04,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-20 19:32:04,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-20 19:32:04,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-20 19:32:04,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-20 19:32:04,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-20 19:32:04,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 19:32:04,511 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-20 19:32:04,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 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) [2022-10-20 19:32:04,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-20 19:32:04,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-20 19:32:04,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-20 19:32:04,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-20 19:32:04,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-20 19:32:04,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-20 19:32:04,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-20 19:32:11,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 19:32:11,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-20 19:32:11,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-20 19:32:11,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-20 19:32:11,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-20 19:32:11,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-20 19:32:11,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-20 19:32:11,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-20 19:32:11,754 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-20 19:32:11,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-20 19:32:11,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1936167230, now seen corresponding path program 1 times [2022-10-20 19:32:11,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-20 19:32:11,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442189001] [2022-10-20 19:32:11,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-20 19:32:11,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-20 19:32:11,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-20 19:32:11,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-20 19:32:11,981 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-20 19:32:11,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442189001] [2022-10-20 19:32:11,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442189001] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-20 19:32:11,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-20 19:32:11,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-20 19:32:11,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891806055] [2022-10-20 19:32:11,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-20 19:32:11,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-20 19:32:11,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-20 19:32:11,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-20 19:32:11,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-20 19:32:11,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 19:32:11,984 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-20 19:32:11,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 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) [2022-10-20 19:32:11,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-20 19:32:11,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-20 19:32:11,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-20 19:32:11,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-20 19:32:11,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-20 19:32:11,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-20 19:32:11,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-20 19:32:11,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-20 19:35:04,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 19:35:04,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-20 19:35:04,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-20 19:35:04,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-20 19:35:04,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-20 19:35:04,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-20 19:35:04,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-20 19:35:04,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-20 19:35:04,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-20 19:35:04,904 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-20 19:35:04,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-20 19:35:04,904 INFO L85 PathProgramCache]: Analyzing trace with hash -855951594, now seen corresponding path program 1 times [2022-10-20 19:35:04,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-20 19:35:04,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103721157] [2022-10-20 19:35:04,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-20 19:35:04,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-20 19:35:04,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-20 19:35:05,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-20 19:35:05,241 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-20 19:35:05,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103721157] [2022-10-20 19:35:05,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103721157] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-20 19:35:05,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-20 19:35:05,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-20 19:35:05,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772620141] [2022-10-20 19:35:05,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-20 19:35:05,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-20 19:35:05,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-20 19:35:05,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-20 19:35:05,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-20 19:35:05,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-20 19:35:05,244 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-20 19:35:05,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.666666666666664) internal successors, (334), 6 states have internal predecessors, (334), 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) [2022-10-20 19:35:05,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-20 19:35:05,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-20 19:35:05,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-20 19:35:05,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-20 19:35:05,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-20 19:35:05,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-20 19:35:05,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-20 19:35:05,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-10-20 19:35:05,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.