/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 15 --traceabstraction.coinflip.random.seed 0 --traceabstraction.coinflip.budget.determination.mode FALLBACK -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2023/min-max-sample-abs-nonatomic.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-e57bdd3-m [2022-10-10 16:47:13,298 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-10 16:47:13,300 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-10 16:47:13,334 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-10 16:47:13,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-10 16:47:13,354 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-10 16:47:13,355 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-10 16:47:13,358 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-10 16:47:13,359 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-10 16:47:13,359 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-10 16:47:13,361 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-10 16:47:13,368 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-10 16:47:13,369 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-10 16:47:13,370 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-10 16:47:13,371 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-10 16:47:13,373 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-10 16:47:13,380 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-10 16:47:13,387 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-10 16:47:13,388 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-10 16:47:13,388 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-10 16:47:13,391 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/SleepMap-ConcreteSmt-VarAbsGlobalSyntactic.epf [2022-10-10 16:47:13,439 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-10 16:47:13,439 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-10 16:47:13,440 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-10 16:47:13,440 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-10 16:47:13,441 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-10 16:47:13,441 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-10 16:47:13,443 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-10 16:47:13,443 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-10 16:47:13,443 INFO L138 SettingsManager]: * Use SBE=true [2022-10-10 16:47:13,443 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-10 16:47:13,444 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-10 16:47:13,444 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-10 16:47:13,444 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-10 16:47:13,444 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-10 16:47:13,444 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-10 16:47:13,444 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-10 16:47:13,444 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-10 16:47:13,444 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-10 16:47:13,444 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-10 16:47:13,445 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-10 16:47:13,445 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-10 16:47:13,445 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-10 16:47:13,445 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-10 16:47:13,445 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-10 16:47:13,445 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-10 16:47:13,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-10 16:47:13,446 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-10 16:47:13,446 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-10 16:47:13,446 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-10 16:47:13,446 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-10 16:47:13,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-10 16:47:13,446 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-10 16:47:13,446 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-10 16:47:13,446 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-10 16:47:13,446 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-10 16:47:13,447 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-10 16:47:13,447 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-10 16:47:13,447 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-10 16:47:13,447 INFO L138 SettingsManager]: * Number of independence relations to use for POR=2 [2022-10-10 16:47:13,447 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> BADGER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Coinflip probability value -> 15 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Coinflip random seed -> 0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Coinflip budget determination mode -> FALLBACK [2022-10-10 16:47:13,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-10 16:47:13,741 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-10 16:47:13,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-10 16:47:13,749 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-10 16:47:13,751 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-10 16:47:13,752 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/min-max-sample-abs-nonatomic.bpl [2022-10-10 16:47:13,753 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/min-max-sample-abs-nonatomic.bpl' [2022-10-10 16:47:13,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-10 16:47:13,774 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-10-10 16:47:13,774 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-10 16:47:13,774 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-10 16:47:13,774 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-10 16:47:13,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-max-sample-abs-nonatomic.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:47:13" (1/1) ... [2022-10-10 16:47:13,788 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-max-sample-abs-nonatomic.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:47:13" (1/1) ... [2022-10-10 16:47:13,792 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-10-10 16:47:13,793 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-10 16:47:13,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-10 16:47:13,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-10 16:47:13,794 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-10 16:47:13,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-max-sample-abs-nonatomic.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:47:13" (1/1) ... [2022-10-10 16:47:13,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-max-sample-abs-nonatomic.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:47:13" (1/1) ... [2022-10-10 16:47:13,800 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-max-sample-abs-nonatomic.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:47:13" (1/1) ... [2022-10-10 16:47:13,800 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-max-sample-abs-nonatomic.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:47:13" (1/1) ... [2022-10-10 16:47:13,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-max-sample-abs-nonatomic.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:47:13" (1/1) ... [2022-10-10 16:47:13,804 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-max-sample-abs-nonatomic.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:47:13" (1/1) ... [2022-10-10 16:47:13,805 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-max-sample-abs-nonatomic.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:47:13" (1/1) ... [2022-10-10 16:47:13,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-10 16:47:13,807 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-10 16:47:13,807 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-10 16:47:13,807 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-10 16:47:13,808 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-max-sample-abs-nonatomic.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:47:13" (1/1) ... [2022-10-10 16:47:13,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-10 16:47:13,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-10 16:47:13,841 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) [2022-10-10 16:47:13,849 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 [2022-10-10 16:47:13,871 INFO L124 BoogieDeclarations]: Specification and implementation of procedure computeMax given in one single declaration [2022-10-10 16:47:13,871 INFO L130 BoogieDeclarations]: Found specification of procedure computeMax [2022-10-10 16:47:13,871 INFO L138 BoogieDeclarations]: Found implementation of procedure computeMax [2022-10-10 16:47:13,871 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-10-10 16:47:13,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-10 16:47:13,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-10 16:47:13,872 INFO L124 BoogieDeclarations]: Specification and implementation of procedure sample given in one single declaration [2022-10-10 16:47:13,872 INFO L130 BoogieDeclarations]: Found specification of procedure sample [2022-10-10 16:47:13,872 INFO L138 BoogieDeclarations]: Found implementation of procedure sample [2022-10-10 16:47:13,872 INFO L124 BoogieDeclarations]: Specification and implementation of procedure mapAbs given in one single declaration [2022-10-10 16:47:13,872 INFO L130 BoogieDeclarations]: Found specification of procedure mapAbs [2022-10-10 16:47:13,872 INFO L138 BoogieDeclarations]: Found implementation of procedure mapAbs [2022-10-10 16:47:13,872 INFO L124 BoogieDeclarations]: Specification and implementation of procedure computeMin given in one single declaration [2022-10-10 16:47:13,872 INFO L130 BoogieDeclarations]: Found specification of procedure computeMin [2022-10-10 16:47:13,872 INFO L138 BoogieDeclarations]: Found implementation of procedure computeMin [2022-10-10 16:47:13,873 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-10 16:47:13,908 INFO L234 CfgBuilder]: Building ICFG [2022-10-10 16:47:13,909 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-10 16:47:14,037 INFO L275 CfgBuilder]: Performing block encoding [2022-10-10 16:47:14,042 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-10 16:47:14,042 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-10 16:47:14,044 INFO L202 PluginConnector]: Adding new model min-max-sample-abs-nonatomic.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 04:47:14 BoogieIcfgContainer [2022-10-10 16:47:14,044 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-10 16:47:14,045 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-10 16:47:14,045 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-10 16:47:14,047 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-10 16:47:14,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-sample-abs-nonatomic.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 04:47:13" (1/2) ... [2022-10-10 16:47:14,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25a0be10 and model type min-max-sample-abs-nonatomic.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 04:47:14, skipping insertion in model container [2022-10-10 16:47:14,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-sample-abs-nonatomic.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 04:47:14" (2/2) ... [2022-10-10 16:47:14,049 INFO L112 eAbstractionObserver]: Analyzing ICFG min-max-sample-abs-nonatomic.bpl [2022-10-10 16:47:14,083 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-10 16:47:14,090 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-10 16:47:14,090 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-10 16:47:14,090 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-10 16:47:14,223 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-10-10 16:47:14,265 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-10 16:47:14,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-10 16:47:14,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-10 16:47:14,302 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) [2022-10-10 16:47:14,337 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 [2022-10-10 16:47:14,346 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-10 16:47:14,370 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2022-10-10 16:47:14,370 WARN L162 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2022-10-10 16:47:14,370 WARN L163 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2022-10-10 16:47:14,385 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-10-10 16:47:14,393 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;@214806e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-10 16:47:14,393 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-10 16:47:14,934 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-10 16:47:14,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-10 16:47:14,939 INFO L85 PathProgramCache]: Analyzing trace with hash 818726503, now seen corresponding path program 1 times [2022-10-10 16:47:14,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-10 16:47:14,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026287822] [2022-10-10 16:47:14,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-10 16:47:14,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-10 16:47:15,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-10 16:47:15,836 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-10 16:47:15,836 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-10 16:47:15,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026287822] [2022-10-10 16:47:15,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026287822] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-10 16:47:15,838 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-10 16:47:15,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2022-10-10 16:47:15,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996391448] [2022-10-10 16:47:15,840 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-10 16:47:15,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-10-10 16:47:15,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-10 16:47:15,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-10-10 16:47:15,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-10-10 16:47:15,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-10 16:47:15,865 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-10 16:47:15,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.25) internal successors, (45), 21 states have internal predecessors, (45), 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) [2022-10-10 16:47:15,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-10 16:47:17,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-10-10 16:47:17,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-10 16:47:17,876 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-10 16:47:17,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-10 16:47:17,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1376536335, now seen corresponding path program 1 times [2022-10-10 16:47:17,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-10 16:47:17,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953300890] [2022-10-10 16:47:17,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-10 16:47:17,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-10 16:47:17,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-10 16:47:18,048 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 41 proven. 48 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-10-10 16:47:18,049 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-10 16:47:18,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953300890] [2022-10-10 16:47:18,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953300890] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-10 16:47:18,049 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-10 16:47:18,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2022-10-10 16:47:18,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744233806] [2022-10-10 16:47:18,049 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-10 16:47:18,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-10 16:47:18,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-10 16:47:18,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-10 16:47:18,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-10 16:47:18,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-10 16:47:18,053 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-10 16:47:18,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 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) [2022-10-10 16:47:18,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-10-10 16:47:18,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-10 16:47:18,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-10-10 16:47:18,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-10 16:47:18,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-10 16:47:18,936 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-10 16:47:18,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-10 16:47:18,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1345776460, now seen corresponding path program 2 times [2022-10-10 16:47:18,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-10 16:47:18,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856323190] [2022-10-10 16:47:18,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-10 16:47:18,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-10 16:47:18,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-10 16:47:19,121 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 68 proven. 178 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-10 16:47:19,121 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-10 16:47:19,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856323190] [2022-10-10 16:47:19,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856323190] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-10 16:47:19,121 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-10 16:47:19,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2022-10-10 16:47:19,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855820598] [2022-10-10 16:47:19,122 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-10 16:47:19,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-10 16:47:19,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-10 16:47:19,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-10 16:47:19,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-10-10 16:47:19,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-10 16:47:19,123 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-10 16:47:19,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.416666666666667) internal successors, (77), 12 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) [2022-10-10 16:47:19,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-10-10 16:47:19,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-10-10 16:47:19,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-10 16:47:20,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-10-10 16:47:20,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-10 16:47:20,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-10 16:47:20,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-10 16:47:20,693 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-10 16:47:20,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-10 16:47:20,693 INFO L85 PathProgramCache]: Analyzing trace with hash -57118186, now seen corresponding path program 3 times [2022-10-10 16:47:20,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-10 16:47:20,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394024957] [2022-10-10 16:47:20,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-10 16:47:20,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-10 16:47:20,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-10 16:47:20,862 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 312 proven. 129 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-10-10 16:47:20,864 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-10 16:47:20,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394024957] [2022-10-10 16:47:20,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394024957] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-10 16:47:20,865 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-10 16:47:20,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2022-10-10 16:47:20,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778958774] [2022-10-10 16:47:20,865 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-10 16:47:20,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-10 16:47:20,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-10 16:47:20,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-10 16:47:20,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-10-10 16:47:20,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-10 16:47:20,866 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-10 16:47:20,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 12 states have internal predecessors, (81), 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) [2022-10-10 16:47:20,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-10-10 16:47:20,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-10-10 16:47:20,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-10-10 16:47:20,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-10 16:47:28,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-10-10 16:47:28,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-10 16:47:28,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-10 16:47:28,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-10 16:47:28,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-10 16:47:28,456 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-10 16:47:28,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-10 16:47:28,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1622364184, now seen corresponding path program 4 times [2022-10-10 16:47:28,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-10 16:47:28,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112293181] [2022-10-10 16:47:28,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-10 16:47:28,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-10 16:47:28,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-10 16:47:29,306 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 21 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-10 16:47:29,306 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-10 16:47:29,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112293181] [2022-10-10 16:47:29,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112293181] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-10 16:47:29,307 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-10 16:47:29,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2022-10-10 16:47:29,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437299785] [2022-10-10 16:47:29,307 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-10 16:47:29,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-10-10 16:47:29,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-10 16:47:29,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-10-10 16:47:29,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=1200, Unknown=0, NotChecked=0, Total=1332 [2022-10-10 16:47:29,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-10 16:47:29,309 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-10 16:47:29,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 1.8333333333333333) internal successors, (66), 37 states have internal predecessors, (66), 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) [2022-10-10 16:47:29,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-10-10 16:47:29,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-10-10 16:47:29,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-10-10 16:47:29,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-10-10 16:47:29,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-10 16:48:14,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-10-10 16:48:14,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-10 16:48:14,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-10 16:48:14,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-10 16:48:14,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2022-10-10 16:48:14,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-10 16:48:14,916 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-10 16:48:14,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-10 16:48:14,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1873955134, now seen corresponding path program 5 times [2022-10-10 16:48:14,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-10 16:48:14,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173361161] [2022-10-10 16:48:14,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-10 16:48:14,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-10 16:48:14,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-10 16:48:15,180 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 99 proven. 406 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-10 16:48:15,180 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-10 16:48:15,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173361161] [2022-10-10 16:48:15,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173361161] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-10 16:48:15,181 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-10 16:48:15,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2022-10-10 16:48:15,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827627940] [2022-10-10 16:48:15,181 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-10 16:48:15,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-10-10 16:48:15,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-10 16:48:15,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-10-10 16:48:15,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=395, Unknown=0, NotChecked=0, Total=506 [2022-10-10 16:48:15,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-10 16:48:15,182 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-10 16:48:15,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.6521739130434785) internal successors, (107), 23 states have internal predecessors, (107), 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) [2022-10-10 16:48:15,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-10-10 16:48:15,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-10-10 16:48:15,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-10-10 16:48:15,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-10-10 16:48:15,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 192 states. [2022-10-10 16:48:15,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.