/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION --traceabstraction.trace.refinement.strategy BADGER -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk03/safe025_rmo.line736.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-e57bdd3-m [2022-10-19 20:43:26,657 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-19 20:43:26,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-19 20:43:26,694 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-19 20:43:26,694 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-19 20:43:26,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-19 20:43:26,701 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-19 20:43:26,707 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-19 20:43:26,712 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-19 20:43:26,713 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-19 20:43:26,714 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-19 20:43:26,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-19 20:43:26,715 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-19 20:43:26,716 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-19 20:43:26,717 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-19 20:43:26,718 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-19 20:43:26,718 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-19 20:43:26,719 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-19 20:43:26,720 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-19 20:43:26,722 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-19 20:43:26,723 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-19 20:43:26,729 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-19 20:43:26,731 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-19 20:43:26,733 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-19 20:43:26,742 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-19 20:43:26,742 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-19 20:43:26,742 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-19 20:43:26,743 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-19 20:43:26,744 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-19 20:43:26,744 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-19 20:43:26,744 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-19 20:43:26,745 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-19 20:43:26,746 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-19 20:43:26,746 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-19 20:43:26,747 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-19 20:43:26,747 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-19 20:43:26,748 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-19 20:43:26,748 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-19 20:43:26,748 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-19 20:43:26,749 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-19 20:43:26,750 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-19 20:43:26,754 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-19 20:43:26,802 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-19 20:43:26,803 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-19 20:43:26,803 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-19 20:43:26,803 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-19 20:43:26,805 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-19 20:43:26,805 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-19 20:43:26,807 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-19 20:43:26,807 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-19 20:43:26,807 INFO L138 SettingsManager]: * Use SBE=true [2022-10-19 20:43:26,807 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-19 20:43:26,808 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-19 20:43:26,808 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-19 20:43:26,808 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-19 20:43:26,808 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-19 20:43:26,808 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-19 20:43:26,809 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-19 20:43:26,809 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-19 20:43:26,809 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-19 20:43:26,809 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-19 20:43:26,809 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-19 20:43:26,809 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-19 20:43:26,809 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-19 20:43:26,809 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-19 20:43:26,810 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-19 20:43:26,810 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-19 20:43:26,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-19 20:43:26,810 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-19 20:43:26,810 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-19 20:43:26,810 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-19 20:43:26,811 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-19 20:43:26,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-19 20:43:26,811 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-19 20:43:26,811 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-19 20:43:26,811 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-19 20:43:26,811 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-19 20:43:26,812 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-19 20:43:26,812 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-19 20:43:26,812 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-19 20:43:26,812 INFO L138 SettingsManager]: * Independence relation used for POR in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> BADGER [2022-10-19 20:43:27,140 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-19 20:43:27,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-19 20:43:27,171 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-19 20:43:27,172 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-19 20:43:27,173 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-19 20:43:27,175 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk03/safe025_rmo.line736.bpl [2022-10-19 20:43:27,175 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk03/safe025_rmo.line736.bpl' [2022-10-19 20:43:27,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-19 20:43:27,257 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-10-19 20:43:27,258 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-19 20:43:27,258 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-19 20:43:27,258 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-19 20:43:27,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "safe025_rmo.line736.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.10 08:43:27" (1/1) ... [2022-10-19 20:43:27,292 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "safe025_rmo.line736.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.10 08:43:27" (1/1) ... [2022-10-19 20:43:27,309 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-10-19 20:43:27,310 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-19 20:43:27,311 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-19 20:43:27,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-19 20:43:27,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-19 20:43:27,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "safe025_rmo.line736.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.10 08:43:27" (1/1) ... [2022-10-19 20:43:27,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "safe025_rmo.line736.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.10 08:43:27" (1/1) ... [2022-10-19 20:43:27,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "safe025_rmo.line736.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.10 08:43:27" (1/1) ... [2022-10-19 20:43:27,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "safe025_rmo.line736.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.10 08:43:27" (1/1) ... [2022-10-19 20:43:27,368 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "safe025_rmo.line736.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.10 08:43:27" (1/1) ... [2022-10-19 20:43:27,374 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "safe025_rmo.line736.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.10 08:43:27" (1/1) ... [2022-10-19 20:43:27,395 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "safe025_rmo.line736.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.10 08:43:27" (1/1) ... [2022-10-19 20:43:27,417 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-19 20:43:27,418 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-19 20:43:27,418 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-19 20:43:27,418 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-19 20:43:27,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "safe025_rmo.line736.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.10 08:43:27" (1/1) ... [2022-10-19 20:43:27,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-19 20:43:27,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-19 20:43:27,456 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) [2022-10-19 20:43:27,488 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 [2022-10-19 20:43:27,501 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-10-19 20:43:27,501 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-10-19 20:43:27,501 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-10-19 20:43:27,502 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-10-19 20:43:27,502 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-10-19 20:43:27,502 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-10-19 20:43:27,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-19 20:43:27,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-19 20:43:27,505 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-19 20:43:27,719 INFO L234 CfgBuilder]: Building ICFG [2022-10-19 20:43:27,721 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-19 20:43:28,560 INFO L275 CfgBuilder]: Performing block encoding [2022-10-19 20:43:28,598 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-19 20:43:28,599 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-19 20:43:28,604 INFO L202 PluginConnector]: Adding new model safe025_rmo.line736.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 08:43:28 BoogieIcfgContainer [2022-10-19 20:43:28,605 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-19 20:43:28,611 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-19 20:43:28,611 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-19 20:43:28,614 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-19 20:43:28,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "safe025_rmo.line736.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.10 08:43:27" (1/2) ... [2022-10-19 20:43:28,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cfee9bf and model type safe025_rmo.line736.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 08:43:28, skipping insertion in model container [2022-10-19 20:43:28,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "safe025_rmo.line736.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 08:43:28" (2/2) ... [2022-10-19 20:43:28,619 INFO L112 eAbstractionObserver]: Analyzing ICFG safe025_rmo.line736.bpl [2022-10-19 20:43:28,627 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-19 20:43:28,633 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-19 20:43:28,633 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-19 20:43:28,633 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-19 20:43:28,839 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-10-19 20:43:28,914 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-19 20:43:28,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-19 20:43:28,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-19 20:43:28,920 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) [2022-10-19 20:43:28,922 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 [2022-10-19 20:43:28,956 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-19 20:43:28,972 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Err0ASSERT_VIOLATIONASSERT ======== [2022-10-19 20:43:28,978 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;@526f790e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-19 20:43:28,979 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-19 20:43:28,981 WARN L124 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2022-10-19 20:43:28,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-10-19 20:43:28,988 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-19 20:43:28,991 INFO L307 ceAbstractionStarter]: Result for error location P2Err0ASSERT_VIOLATIONASSERT was SAFE (1/5) [2022-10-19 20:43:29,013 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-19 20:43:29,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-19 20:43:29,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-19 20:43:29,016 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-19 20:43:29,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2022-10-19 20:43:29,021 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-19 20:43:29,022 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-19 20:43:29,023 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;@526f790e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-19 20:43:29,023 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-19 20:43:47,965 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-19 20:43:47,972 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-19 20:43:47,976 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (2/5) [2022-10-19 20:43:48,007 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-19 20:43:48,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-19 20:43:48,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-19 20:43:48,022 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-19 20:43:48,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2022-10-19 20:43:48,032 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-19 20:43:48,032 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-19 20:43:48,033 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;@526f790e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-19 20:43:48,033 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-19 20:43:48,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-19 20:43:48,043 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-19 20:43:48,044 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (3/5) [2022-10-19 20:43:48,056 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-19 20:43:48,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-19 20:43:48,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-19 20:43:48,058 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-19 20:43:48,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2022-10-19 20:43:48,065 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-19 20:43:48,066 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-19 20:43:48,067 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;@526f790e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-19 20:43:48,067 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-19 20:43:48,364 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-19 20:43:48,365 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-19 20:43:48,366 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (4/5) [2022-10-19 20:43:48,375 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-19 20:43:48,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-19 20:43:48,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-19 20:43:48,383 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-19 20:43:48,393 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-19 20:43:48,394 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Err0ASSERT_VIOLATIONASSERT ======== [2022-10-19 20:43:48,394 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;@526f790e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-19 20:43:48,394 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-19 20:43:48,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2022-10-19 20:43:48,511 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONASSERT === [P2Err0ASSERT_VIOLATIONASSERT] === [2022-10-19 20:43:48,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-19 20:43:48,516 INFO L85 PathProgramCache]: Analyzing trace with hash 335256422, now seen corresponding path program 1 times [2022-10-19 20:43:48,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-19 20:43:48,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462484207] [2022-10-19 20:43:48,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-19 20:43:48,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-19 20:43:49,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-19 20:43:49,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-19 20:43:49,633 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-19 20:43:49,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462484207] [2022-10-19 20:43:49,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462484207] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-19 20:43:49,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-19 20:43:49,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-19 20:43:49,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776370549] [2022-10-19 20:43:49,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-19 20:43:49,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-19 20:43:49,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-19 20:43:49,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-19 20:43:49,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-19 20:43:49,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-19 20:43:49,683 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-19 20:43:49,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 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) [2022-10-19 20:43:49,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-19 20:43:49,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-19 20:43:49,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-19 20:43:49,793 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P2Err0ASSERT_VIOLATIONASSERT === [P2Err0ASSERT_VIOLATIONASSERT] === [2022-10-19 20:43:49,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-19 20:43:49,794 INFO L85 PathProgramCache]: Analyzing trace with hash 785165961, now seen corresponding path program 1 times [2022-10-19 20:43:49,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-19 20:43:49,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324237328] [2022-10-19 20:43:49,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-19 20:43:49,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-19 20:43:49,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-19 20:43:50,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-19 20:43:50,105 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-19 20:43:50,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324237328] [2022-10-19 20:43:50,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324237328] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-19 20:43:50,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-19 20:43:50,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-19 20:43:50,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950961113] [2022-10-19 20:43:50,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-19 20:43:50,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-19 20:43:50,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-19 20:43:50,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-19 20:43:50,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-19 20:43:50,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-19 20:43:50,112 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-19 20:43:50,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 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) [2022-10-19 20:43:50,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-19 20:43:50,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-19 20:43:50,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-19 20:43:50,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-19 20:43:50,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-19 20:43:50,149 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P2Err0ASSERT_VIOLATIONASSERT === [P2Err0ASSERT_VIOLATIONASSERT] === [2022-10-19 20:43:50,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-19 20:43:50,154 INFO L85 PathProgramCache]: Analyzing trace with hash 2095829609, now seen corresponding path program 1 times [2022-10-19 20:43:50,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-19 20:43:50,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050190141] [2022-10-19 20:43:50,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-19 20:43:50,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-19 20:43:50,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-19 20:43:50,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-19 20:43:50,375 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-19 20:43:50,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050190141] [2022-10-19 20:43:50,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050190141] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-19 20:43:50,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-19 20:43:50,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-19 20:43:50,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556254730] [2022-10-19 20:43:50,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-19 20:43:50,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-19 20:43:50,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-19 20:43:50,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-19 20:43:50,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-19 20:43:50,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-19 20:43:50,378 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-19 20:43:50,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 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) [2022-10-19 20:43:50,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-19 20:43:50,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-19 20:43:50,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-19 20:43:50,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-19 20:43:50,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-19 20:43:50,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-19 20:43:50,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-19 20:43:50,427 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONASSERT === [P2Err0ASSERT_VIOLATIONASSERT] === [2022-10-19 20:43:50,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-19 20:43:50,427 INFO L85 PathProgramCache]: Analyzing trace with hash -923360063, now seen corresponding path program 1 times [2022-10-19 20:43:50,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-19 20:43:50,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340515696] [2022-10-19 20:43:50,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-19 20:43:50,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-19 20:43:50,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-19 20:43:50,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-19 20:43:50,591 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-19 20:43:50,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340515696] [2022-10-19 20:43:50,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340515696] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-19 20:43:50,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-19 20:43:50,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-19 20:43:50,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674473549] [2022-10-19 20:43:50,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-19 20:43:50,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-19 20:43:50,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-19 20:43:50,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-19 20:43:50,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-19 20:43:50,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-19 20:43:50,593 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-19 20:43:50,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 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) [2022-10-19 20:43:50,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-19 20:43:50,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-19 20:43:50,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-19 20:43:50,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-19 20:43:50,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-19 20:43:50,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-19 20:43:50,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-19 20:43:50,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-19 20:43:50,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-19 20:43:50,689 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P2Err0ASSERT_VIOLATIONASSERT === [P2Err0ASSERT_VIOLATIONASSERT] === [2022-10-19 20:43:50,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-19 20:43:50,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1634629775, now seen corresponding path program 1 times [2022-10-19 20:43:50,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-19 20:43:50,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169374363] [2022-10-19 20:43:50,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-19 20:43:50,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-19 20:43:50,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-19 20:43:50,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-19 20:43:50,948 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-19 20:43:50,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169374363] [2022-10-19 20:43:50,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169374363] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-19 20:43:50,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-19 20:43:50,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-19 20:43:50,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107156035] [2022-10-19 20:43:50,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-19 20:43:50,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-19 20:43:50,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-19 20:43:50,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-19 20:43:50,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-19 20:43:50,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-19 20:43:50,954 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-19 20:43:50,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 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) [2022-10-19 20:43:50,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-19 20:43:50,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-19 20:43:50,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-19 20:43:50,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-19 20:43:50,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-19 20:43:51,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-19 20:43:51,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-19 20:43:51,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-19 20:43:51,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-19 20:43:51,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-19 20:43:51,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-19 20:43:51,036 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting P2Err0ASSERT_VIOLATIONASSERT === [P2Err0ASSERT_VIOLATIONASSERT] === [2022-10-19 20:43:51,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-19 20:43:51,037 INFO L85 PathProgramCache]: Analyzing trace with hash -383723359, now seen corresponding path program 1 times [2022-10-19 20:43:51,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-19 20:43:51,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484982053] [2022-10-19 20:43:51,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-19 20:43:51,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-19 20:43:51,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-19 20:43:51,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-19 20:43:51,489 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-19 20:43:51,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484982053] [2022-10-19 20:43:51,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484982053] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-19 20:43:51,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-19 20:43:51,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-19 20:43:51,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918287652] [2022-10-19 20:43:51,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-19 20:43:51,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-19 20:43:51,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-19 20:43:51,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-19 20:43:51,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-10-19 20:43:51,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-19 20:43:51,492 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-19 20:43:51,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 47.625) internal successors, (381), 8 states have internal predecessors, (381), 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) [2022-10-19 20:43:51,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-19 20:43:51,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-19 20:43:51,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-19 20:43:51,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-19 20:43:51,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-19 20:43:51,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-19 20:43:51,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-19 20:43:51,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-19 20:43:51,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-19 20:43:51,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-19 20:43:51,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-19 20:43:51,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-19 20:43:51,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-19 20:43:51,616 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting P2Err0ASSERT_VIOLATIONASSERT === [P2Err0ASSERT_VIOLATIONASSERT] === [2022-10-19 20:43:51,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-19 20:43:51,617 INFO L85 PathProgramCache]: Analyzing trace with hash 86830209, now seen corresponding path program 1 times [2022-10-19 20:43:51,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-19 20:43:51,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043342169] [2022-10-19 20:43:51,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-19 20:43:51,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-19 20:43:51,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-19 20:43:52,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-19 20:43:52,280 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-19 20:43:52,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043342169] [2022-10-19 20:43:52,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043342169] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-19 20:43:52,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-19 20:43:52,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-19 20:43:52,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522774064] [2022-10-19 20:43:52,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-19 20:43:52,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-19 20:43:52,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-19 20:43:52,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-19 20:43:52,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-10-19 20:43:52,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-19 20:43:52,284 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-19 20:43:52,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 42.333333333333336) internal successors, (381), 10 states have internal predecessors, (381), 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) [2022-10-19 20:43:52,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-19 20:43:52,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-19 20:43:52,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-19 20:43:52,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-19 20:43:52,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-19 20:43:52,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-19 20:43:52,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.