/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy BADGER --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP -s ../../../trunk/examples/settings/gemcutter/SleepMap-ConcreteSmt-VarAbsGlobalSyntactic.epf --traceabstraction.coinflip.probability.value 90 --traceabstraction.coinflip.random.seed 0 --traceabstraction.coinflip.budget.determination.mode PURE -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2023/min2-max2-sample.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-e57bdd3-m [2022-10-06 04:21:01,895 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2022-10-06 04:21:01,959 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-06 04:21:01,961 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-06 04:21:01,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-06 04:21:01,968 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-06 04:21:01,969 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-06 04:21:01,970 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-06 04:21:01,972 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-06 04:21:01,978 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-06 04:21:01,979 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-06 04:21:01,980 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-06 04:21:01,981 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-06 04:21:01,983 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-06 04:21:01,990 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-06 04:21:02,001 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-06 04:21:02,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-06 04:21:02,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-06 04:21:02,003 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/SleepMap-ConcreteSmt-VarAbsGlobalSyntactic.epf [2022-10-06 04:21:02,053 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-06 04:21:02,054 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-06 04:21:02,054 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-06 04:21:02,054 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-06 04:21:02,056 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-06 04:21:02,056 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-06 04:21:02,058 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-06 04:21:02,058 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-06 04:21:02,058 INFO L138 SettingsManager]: * Use SBE=true [2022-10-06 04:21:02,058 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-06 04:21:02,059 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-06 04:21:02,059 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-06 04:21:02,059 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-06 04:21:02,059 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-06 04:21:02,060 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-06 04:21:02,060 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-06 04:21:02,060 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-06 04:21:02,060 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-06 04:21:02,060 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-06 04:21:02,060 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-06 04:21:02,060 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-06 04:21:02,061 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-06 04:21:02,061 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-06 04:21:02,061 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-06 04:21:02,061 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-06 04:21:02,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-06 04:21:02,061 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-06 04:21:02,062 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-06 04:21:02,062 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-06 04:21:02,062 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-06 04:21:02,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-06 04:21:02,062 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-06 04:21:02,062 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-06 04:21:02,062 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-06 04:21:02,062 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-06 04:21:02,062 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-06 04:21:02,063 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-06 04:21:02,063 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-06 04:21:02,063 INFO L138 SettingsManager]: * Number of independence relations to use for POR=2 [2022-10-06 04:21:02,063 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> BADGER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Coinflip probability value -> 90 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Coinflip random seed -> 0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Coinflip budget determination mode -> PURE [2022-10-06 04:21:02,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-06 04:21:02,413 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-06 04:21:02,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-06 04:21:02,417 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-06 04:21:02,419 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-06 04:21:02,422 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/min2-max2-sample.bpl [2022-10-06 04:21:02,422 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/min2-max2-sample.bpl' [2022-10-06 04:21:02,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-06 04:21:02,452 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-10-06 04:21:02,453 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-06 04:21:02,453 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-06 04:21:02,453 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-06 04:21:02,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.10 04:21:02" (1/1) ... [2022-10-06 04:21:02,478 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.10 04:21:02" (1/1) ... [2022-10-06 04:21:02,484 INFO L138 Inliner]: procedures = 4, calls = 5, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-10-06 04:21:02,486 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-06 04:21:02,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-06 04:21:02,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-06 04:21:02,488 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-06 04:21:02,494 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.10 04:21:02" (1/1) ... [2022-10-06 04:21:02,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.10 04:21:02" (1/1) ... [2022-10-06 04:21:02,495 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.10 04:21:02" (1/1) ... [2022-10-06 04:21:02,496 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.10 04:21:02" (1/1) ... [2022-10-06 04:21:02,498 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.10 04:21:02" (1/1) ... [2022-10-06 04:21:02,503 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.10 04:21:02" (1/1) ... [2022-10-06 04:21:02,504 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.10 04:21:02" (1/1) ... [2022-10-06 04:21:02,505 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-06 04:21:02,506 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-06 04:21:02,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-06 04:21:02,507 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-06 04:21:02,508 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.10 04:21:02" (1/1) ... [2022-10-06 04:21:02,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-06 04:21:02,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-06 04:21:02,536 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) [2022-10-06 04:21:02,546 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 [2022-10-06 04:21:02,578 INFO L124 BoogieDeclarations]: Specification and implementation of procedure computeMax given in one single declaration [2022-10-06 04:21:02,578 INFO L130 BoogieDeclarations]: Found specification of procedure computeMax [2022-10-06 04:21:02,578 INFO L138 BoogieDeclarations]: Found implementation of procedure computeMax [2022-10-06 04:21:02,579 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-10-06 04:21:02,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-06 04:21:02,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-06 04:21:02,580 INFO L124 BoogieDeclarations]: Specification and implementation of procedure sample given in one single declaration [2022-10-06 04:21:02,580 INFO L130 BoogieDeclarations]: Found specification of procedure sample [2022-10-06 04:21:02,581 INFO L138 BoogieDeclarations]: Found implementation of procedure sample [2022-10-06 04:21:02,582 INFO L124 BoogieDeclarations]: Specification and implementation of procedure computeMin given in one single declaration [2022-10-06 04:21:02,582 INFO L130 BoogieDeclarations]: Found specification of procedure computeMin [2022-10-06 04:21:02,582 INFO L138 BoogieDeclarations]: Found implementation of procedure computeMin [2022-10-06 04:21:02,585 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-06 04:21:02,637 INFO L234 CfgBuilder]: Building ICFG [2022-10-06 04:21:02,638 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-06 04:21:02,762 INFO L275 CfgBuilder]: Performing block encoding [2022-10-06 04:21:02,779 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-06 04:21:02,779 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-06 04:21:02,781 INFO L202 PluginConnector]: Adding new model min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 04:21:02 BoogieIcfgContainer [2022-10-06 04:21:02,782 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-06 04:21:02,784 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-06 04:21:02,784 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-06 04:21:02,786 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-06 04:21:02,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.10 04:21:02" (1/2) ... [2022-10-06 04:21:02,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41bd0df7 and model type min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 04:21:02, skipping insertion in model container [2022-10-06 04:21:02,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min2-max2-sample.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 04:21:02" (2/2) ... [2022-10-06 04:21:02,798 INFO L112 eAbstractionObserver]: Analyzing ICFG min2-max2-sample.bpl [2022-10-06 04:21:02,812 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-06 04:21:02,821 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-06 04:21:02,821 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-06 04:21:02,821 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-06 04:21:02,893 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-10-06 04:21:02,970 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-06 04:21:02,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-06 04:21:02,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-06 04:21:02,984 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) [2022-10-06 04:21:02,986 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 [2022-10-06 04:21:03,016 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-06 04:21:03,045 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2022-10-06 04:21:03,045 WARN L162 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2022-10-06 04:21:03,045 WARN L163 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2022-10-06 04:21:03,062 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-10-06 04:21:03,070 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;@6a2da295, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-06 04:21:03,071 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-06 04:21:03,442 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-06 04:21:03,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-06 04:21:03,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1441096400, now seen corresponding path program 1 times [2022-10-06 04:21:03,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-06 04:21:03,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747322410] [2022-10-06 04:21:03,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-06 04:21:03,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-06 04:21:03,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-06 04:21:03,672 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-06 04:21:03,673 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-06 04:21:03,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747322410] [2022-10-06 04:21:03,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747322410] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-06 04:21:03,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-06 04:21:03,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-06 04:21:03,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442649506] [2022-10-06 04:21:03,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-06 04:21:03,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-06 04:21:03,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-06 04:21:03,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-06 04:21:03,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-06 04:21:03,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-06 04:21:03,726 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-06 04:21:03,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2022-10-06 04:21:03,727 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-06 04:21:03,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-06 04:21:03,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-06 04:21:03,894 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-06 04:21:03,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-06 04:21:03,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1945486414, now seen corresponding path program 2 times [2022-10-06 04:21:03,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-06 04:21:03,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948039148] [2022-10-06 04:21:03,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-06 04:21:03,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-06 04:21:03,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-06 04:21:04,147 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 42 proven. 23 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-06 04:21:04,147 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-06 04:21:04,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948039148] [2022-10-06 04:21:04,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948039148] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-06 04:21:04,148 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-06 04:21:04,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2022-10-06 04:21:04,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927147360] [2022-10-06 04:21:04,148 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-06 04:21:04,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-06 04:21:04,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-06 04:21:04,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-06 04:21:04,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-10-06 04:21:04,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-06 04:21:04,152 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-06 04:21:04,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 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) [2022-10-06 04:21:04,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-06 04:21:04,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-06 04:21:04,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-06 04:21:04,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-06 04:21:04,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-06 04:21:04,511 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-06 04:21:04,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-06 04:21:04,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1692548398, now seen corresponding path program 3 times [2022-10-06 04:21:04,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-06 04:21:04,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095769185] [2022-10-06 04:21:04,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-06 04:21:04,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-06 04:21:04,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-06 04:21:04,635 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 27 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-06 04:21:04,636 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-06 04:21:04,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095769185] [2022-10-06 04:21:04,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095769185] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-06 04:21:04,636 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-06 04:21:04,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2022-10-06 04:21:04,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870463281] [2022-10-06 04:21:04,637 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-06 04:21:04,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-06 04:21:04,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-06 04:21:04,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-06 04:21:04,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-10-06 04:21:04,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-06 04:21:04,639 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-06 04:21:04,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 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) [2022-10-06 04:21:04,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-06 04:21:04,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-10-06 04:21:04,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-06 04:21:04,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-06 04:21:04,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-06 04:21:04,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-06 04:21:04,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-06 04:21:04,962 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-06 04:21:04,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-06 04:21:04,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1080112334, now seen corresponding path program 4 times [2022-10-06 04:21:04,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-06 04:21:04,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56096582] [2022-10-06 04:21:04,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-06 04:21:04,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-06 04:21:04,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-06 04:21:05,065 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-06 04:21:05,066 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-06 04:21:05,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56096582] [2022-10-06 04:21:05,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56096582] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-06 04:21:05,075 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-06 04:21:05,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2022-10-06 04:21:05,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973693828] [2022-10-06 04:21:05,075 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-06 04:21:05,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-06 04:21:05,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-06 04:21:05,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-06 04:21:05,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-10-06 04:21:05,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-06 04:21:05,077 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-06 04:21:05,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 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) [2022-10-06 04:21:05,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-06 04:21:05,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-10-06 04:21:05,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-10-06 04:21:05,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-06 04:21:05,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-06 04:21:05,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-06 04:21:05,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-06 04:21:05,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-06 04:21:05,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-06 04:21:05,488 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-06 04:21:05,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-06 04:21:05,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1949802568, now seen corresponding path program 5 times [2022-10-06 04:21:05,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-06 04:21:05,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653555059] [2022-10-06 04:21:05,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-06 04:21:05,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-06 04:21:05,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-06 04:21:05,608 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2022-10-06 04:21:05,609 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-06 04:21:05,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653555059] [2022-10-06 04:21:05,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653555059] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-06 04:21:05,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-06 04:21:05,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-06 04:21:05,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453749805] [2022-10-06 04:21:05,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-06 04:21:05,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-06 04:21:05,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-06 04:21:05,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-06 04:21:05,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-06 04:21:05,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-06 04:21:05,612 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-06 04:21:05,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2022-10-06 04:21:05,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-06 04:21:05,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-10-06 04:21:05,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-10-06 04:21:05,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-06 04:21:05,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-06 04:21:05,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-06 04:21:05,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-06 04:21:05,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-06 04:21:05,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-06 04:21:05,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-06 04:21:05,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-06 04:21:05,705 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-06 04:21:05,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-06 04:21:05,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1127950426, now seen corresponding path program 6 times [2022-10-06 04:21:05,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-06 04:21:05,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430749215] [2022-10-06 04:21:05,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-06 04:21:05,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-06 04:21:05,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-06 04:21:06,002 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 47 proven. 184 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-06 04:21:06,003 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-06 04:21:06,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430749215] [2022-10-06 04:21:06,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430749215] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-06 04:21:06,004 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-06 04:21:06,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2022-10-06 04:21:06,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176933385] [2022-10-06 04:21:06,005 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-06 04:21:06,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-06 04:21:06,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-06 04:21:06,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-06 04:21:06,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2022-10-06 04:21:06,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-06 04:21:06,010 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-06 04:21:06,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.8125) internal successors, (77), 16 states have internal predecessors, (77), 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) [2022-10-06 04:21:06,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-06 04:21:06,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-10-06 04:21:06,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-10-06 04:21:06,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-06 04:21:06,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-06 04:21:06,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-06 04:21:06,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-06 04:21:06,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-06 04:21:06,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-06 04:21:06,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-06 04:21:06,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-06 04:21:06,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-10-06 04:21:06,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-06 04:21:06,460 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-06 04:21:06,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-06 04:21:06,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1825611712, now seen corresponding path program 7 times [2022-10-06 04:21:06,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-06 04:21:06,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096667669] [2022-10-06 04:21:06,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-06 04:21:06,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-06 04:21:06,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-06 04:21:06,776 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 530 proven. 200 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-10-06 04:21:06,777 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-06 04:21:06,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096667669] [2022-10-06 04:21:06,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096667669] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-06 04:21:06,777 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-06 04:21:06,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2022-10-06 04:21:06,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094185013] [2022-10-06 04:21:06,778 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-06 04:21:06,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-06 04:21:06,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-06 04:21:06,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-06 04:21:06,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2022-10-06 04:21:06,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-06 04:21:06,780 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-06 04:21:06,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.111111111111111) internal successors, (92), 18 states have internal predecessors, (92), 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) [2022-10-06 04:21:06,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-06 04:21:06,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-10-06 04:21:06,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-10-06 04:21:06,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-10-06 04:21:06,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-06 04:21:06,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-10-06 04:21:06,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-06 04:21:07,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-06 04:21:07,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-06 04:21:07,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-06 04:21:07,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-06 04:21:07,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-06 04:21:07,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-06 04:21:07,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-06 04:21:07,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-06 04:21:07,369 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-06 04:21:07,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-06 04:21:07,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1587346710, now seen corresponding path program 8 times [2022-10-06 04:21:07,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-06 04:21:07,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114645231] [2022-10-06 04:21:07,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-06 04:21:07,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-06 04:23:43,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat