/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.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk10/safe003_power.opt.line494.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-e57bdd3-m [2022-10-21 00:28:09,773 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-21 00:28:09,775 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-21 00:28:09,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-21 00:28:09,811 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-21 00:28:09,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-21 00:28:09,812 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-21 00:28:09,813 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-21 00:28:09,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-21 00:28:09,814 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-21 00:28:09,815 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-21 00:28:09,816 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-21 00:28:09,817 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-21 00:28:09,818 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-21 00:28:09,819 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-21 00:28:09,819 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-21 00:28:09,822 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-21 00:28:09,829 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2022-10-21 00:28:09,845 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-21 00:28:09,846 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-21 00:28:09,846 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-21 00:28:09,846 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-21 00:28:09,847 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-21 00:28:09,847 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-21 00:28:09,847 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-21 00:28:09,847 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-21 00:28:09,847 INFO L138 SettingsManager]: * Use SBE=true [2022-10-21 00:28:09,848 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-21 00:28:09,848 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-21 00:28:09,848 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-21 00:28:09,848 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-21 00:28:09,848 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-21 00:28:09,848 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-21 00:28:09,848 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-21 00:28:09,848 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-21 00:28:09,848 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-21 00:28:09,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-21 00:28:09,849 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-21 00:28:09,849 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-21 00:28:09,849 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-21 00:28:09,849 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-21 00:28:09,849 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-21 00:28:09,849 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-21 00:28:09,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-21 00:28:09,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-21 00:28:09,849 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-21 00:28:09,850 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-21 00:28:09,850 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-21 00:28:09,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-21 00:28:09,850 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-21 00:28:09,850 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-21 00:28:09,850 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-21 00:28:09,850 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-21 00:28:09,850 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> BADGER [2022-10-21 00:28:10,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-21 00:28:10,323 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-21 00:28:10,325 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-21 00:28:10,326 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-21 00:28:10,330 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-21 00:28:10,332 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk10/safe003_power.opt.line494.bpl [2022-10-21 00:28:10,333 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chunk10/safe003_power.opt.line494.bpl' [2022-10-21 00:28:10,445 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-21 00:28:10,461 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-10-21 00:28:10,462 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-21 00:28:10,462 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-21 00:28:10,463 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-21 00:28:10,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "safe003_power.opt.line494.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.10 12:28:10" (1/1) ... [2022-10-21 00:28:10,517 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "safe003_power.opt.line494.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.10 12:28:10" (1/1) ... [2022-10-21 00:28:10,528 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-10-21 00:28:10,529 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-21 00:28:10,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-21 00:28:10,531 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-21 00:28:10,531 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-21 00:28:10,536 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "safe003_power.opt.line494.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.10 12:28:10" (1/1) ... [2022-10-21 00:28:10,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "safe003_power.opt.line494.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.10 12:28:10" (1/1) ... [2022-10-21 00:28:10,552 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "safe003_power.opt.line494.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.10 12:28:10" (1/1) ... [2022-10-21 00:28:10,553 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "safe003_power.opt.line494.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.10 12:28:10" (1/1) ... [2022-10-21 00:28:10,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "safe003_power.opt.line494.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.10 12:28:10" (1/1) ... [2022-10-21 00:28:10,586 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "safe003_power.opt.line494.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.10 12:28:10" (1/1) ... [2022-10-21 00:28:10,604 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "safe003_power.opt.line494.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.10 12:28:10" (1/1) ... [2022-10-21 00:28:10,609 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-21 00:28:10,615 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-21 00:28:10,616 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-21 00:28:10,616 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-21 00:28:10,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "safe003_power.opt.line494.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.10 12:28:10" (1/1) ... [2022-10-21 00:28:10,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-21 00:28:10,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-21 00:28:10,641 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) [2022-10-21 00:28:10,661 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 [2022-10-21 00:28:10,679 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-10-21 00:28:10,679 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-10-21 00:28:10,679 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-10-21 00:28:10,679 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-10-21 00:28:10,680 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-10-21 00:28:10,680 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-10-21 00:28:10,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-21 00:28:10,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-21 00:28:10,682 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-21 00:28:10,814 INFO L234 CfgBuilder]: Building ICFG [2022-10-21 00:28:10,816 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-21 00:28:11,592 INFO L275 CfgBuilder]: Performing block encoding [2022-10-21 00:28:11,618 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-21 00:28:11,619 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-21 00:28:11,621 INFO L202 PluginConnector]: Adding new model safe003_power.opt.line494.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 12:28:11 BoogieIcfgContainer [2022-10-21 00:28:11,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-21 00:28:11,623 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-21 00:28:11,623 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-21 00:28:11,625 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-21 00:28:11,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "safe003_power.opt.line494.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.10 12:28:10" (1/2) ... [2022-10-21 00:28:11,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@578d3c0d and model type safe003_power.opt.line494.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 12:28:11, skipping insertion in model container [2022-10-21 00:28:11,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "safe003_power.opt.line494.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 12:28:11" (2/2) ... [2022-10-21 00:28:11,630 INFO L112 eAbstractionObserver]: Analyzing ICFG safe003_power.opt.line494.bpl [2022-10-21 00:28:11,637 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-21 00:28:11,643 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-21 00:28:11,644 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-21 00:28:11,645 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-21 00:28:11,800 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-10-21 00:28:11,862 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-21 00:28:11,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-21 00:28:11,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-21 00:28:11,864 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) [2022-10-21 00:28:11,866 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 [2022-10-21 00:28:11,900 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-21 00:28:11,911 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P1Err0ASSERT_VIOLATIONASSERT ======== [2022-10-21 00:28:11,919 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;@6496f3d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-21 00:28:11,919 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-21 00:28:11,921 WARN L124 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2022-10-21 00:28:11,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-10-21 00:28:11,930 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-21 00:28:11,932 INFO L307 ceAbstractionStarter]: Result for error location P1Err0ASSERT_VIOLATIONASSERT was SAFE (1/5) [2022-10-21 00:28:11,947 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-21 00:28:11,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-21 00:28:11,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-21 00:28:11,949 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) [2022-10-21 00:28:11,951 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 [2022-10-21 00:28:11,955 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-21 00:28:11,956 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-21 00:28:11,956 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;@6496f3d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-21 00:28:11,956 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-21 00:28:53,310 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-21 00:28:53,316 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-21 00:28:53,317 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (2/5) [2022-10-21 00:28:53,328 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-21 00:28:53,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-21 00:28:53,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-21 00:28:53,330 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) [2022-10-21 00:28:53,330 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 [2022-10-21 00:28:53,337 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-21 00:28:53,338 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-21 00:28:53,338 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;@6496f3d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-21 00:28:53,338 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-21 00:28:53,449 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-21 00:28:53,450 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-21 00:28:53,450 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (3/5) [2022-10-21 00:28:53,455 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-21 00:28:53,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-21 00:28:53,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-21 00:28:53,470 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) [2022-10-21 00:28:53,471 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 [2022-10-21 00:28:53,474 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-21 00:28:53,474 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-21 00:28:53,474 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;@6496f3d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-21 00:28:53,475 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-21 00:28:53,478 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-21 00:28:53,478 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-21 00:28:53,479 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (4/5) [2022-10-21 00:28:53,490 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-21 00:28:53,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-21 00:28:53,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-21 00:28:53,500 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) [2022-10-21 00:28:53,502 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 [2022-10-21 00:28:53,504 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-21 00:28:53,504 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P1Err0ASSERT_VIOLATIONASSERT ======== [2022-10-21 00:28:53,505 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;@6496f3d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-21 00:28:53,505 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-21 00:28:53,513 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONASSERT === [P1Err0ASSERT_VIOLATIONASSERT] === [2022-10-21 00:28:53,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-21 00:28:53,520 INFO L85 PathProgramCache]: Analyzing trace with hash -21855462, now seen corresponding path program 1 times [2022-10-21 00:28:53,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-21 00:28:53,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388158924] [2022-10-21 00:28:53,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-21 00:28:53,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-21 00:28:53,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-21 00:28:53,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-21 00:28:53,774 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-21 00:28:53,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388158924] [2022-10-21 00:28:53,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388158924] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-21 00:28:53,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-21 00:28:53,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-21 00:28:53,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117759361] [2022-10-21 00:28:53,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-21 00:28:54,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-21 00:28:54,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-21 00:28:54,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-21 00:28:54,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-21 00:28:54,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 00:28:54,040 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-21 00:28:54,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 111.0) internal successors, (222), 2 states have internal predecessors, (222), 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) [2022-10-21 00:28:54,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 00:28:54,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 00:28:54,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-21 00:28:54,090 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONASSERT === [P1Err0ASSERT_VIOLATIONASSERT] === [2022-10-21 00:28:54,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-21 00:28:54,091 INFO L85 PathProgramCache]: Analyzing trace with hash -75204480, now seen corresponding path program 1 times [2022-10-21 00:28:54,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-21 00:28:54,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779966899] [2022-10-21 00:28:54,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-21 00:28:54,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-21 00:28:54,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-21 00:28:54,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-21 00:28:54,661 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-21 00:28:54,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779966899] [2022-10-21 00:28:54,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779966899] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-21 00:28:54,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-21 00:28:54,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-21 00:28:54,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777721956] [2022-10-21 00:28:54,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-21 00:28:54,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-21 00:28:54,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-21 00:28:54,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-21 00:28:54,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-21 00:28:54,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 00:28:54,668 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-21 00:28:54,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 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) [2022-10-21 00:28:54,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 00:28:54,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 00:28:54,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 00:28:54,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-21 00:28:54,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-21 00:28:54,749 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONASSERT === [P1Err0ASSERT_VIOLATIONASSERT] === [2022-10-21 00:28:54,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-21 00:28:54,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1184164805, now seen corresponding path program 1 times [2022-10-21 00:28:54,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-21 00:28:54,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414230399] [2022-10-21 00:28:54,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-21 00:28:54,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-21 00:28:54,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-21 00:28:54,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-21 00:28:54,907 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-21 00:28:54,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414230399] [2022-10-21 00:28:54,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414230399] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-21 00:28:54,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-21 00:28:54,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-21 00:28:54,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290240943] [2022-10-21 00:28:54,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-21 00:28:54,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-21 00:28:54,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-21 00:28:54,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-21 00:28:54,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-21 00:28:54,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 00:28:54,911 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-21 00:28:54,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 4 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-21 00:28:54,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 00:28:54,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-21 00:28:54,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 00:28:55,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 00:28:55,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-21 00:28:55,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-21 00:28:55,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-21 00:28:55,016 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P1Err0ASSERT_VIOLATIONASSERT === [P1Err0ASSERT_VIOLATIONASSERT] === [2022-10-21 00:28:55,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-21 00:28:55,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1378438662, now seen corresponding path program 1 times [2022-10-21 00:28:55,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-21 00:28:55,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524681645] [2022-10-21 00:28:55,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-21 00:28:55,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-21 00:28:55,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-21 00:28:55,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-21 00:28:55,142 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-21 00:28:55,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524681645] [2022-10-21 00:28:55,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524681645] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-21 00:28:55,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-21 00:28:55,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-21 00:28:55,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480752749] [2022-10-21 00:28:55,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-21 00:28:55,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-21 00:28:55,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-21 00:28:55,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-21 00:28:55,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-21 00:28:55,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 00:28:55,144 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-21 00:28:55,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 46.166666666666664) internal successors, (277), 6 states have internal predecessors, (277), 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) [2022-10-21 00:28:55,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 00:28:55,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-21 00:28:55,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-21 00:28:55,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 00:28:55,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 00:28:55,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-21 00:28:55,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-21 00:28:55,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-21 00:28:55,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-21 00:28:55,308 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P1Err0ASSERT_VIOLATIONASSERT === [P1Err0ASSERT_VIOLATIONASSERT] === [2022-10-21 00:28:55,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-21 00:28:55,308 INFO L85 PathProgramCache]: Analyzing trace with hash -906023826, now seen corresponding path program 1 times [2022-10-21 00:28:55,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-21 00:28:55,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548207379] [2022-10-21 00:28:55,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-21 00:28:55,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-21 00:28:55,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-21 00:28:55,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-21 00:28:55,500 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-21 00:28:55,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548207379] [2022-10-21 00:28:55,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548207379] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-21 00:28:55,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-21 00:28:55,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-21 00:28:55,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981667266] [2022-10-21 00:28:55,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-21 00:28:55,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-21 00:28:55,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-21 00:28:55,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-21 00:28:55,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-21 00:28:55,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 00:28:55,503 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-21 00:28:55,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 52.166666666666664) internal successors, (313), 6 states have internal predecessors, (313), 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) [2022-10-21 00:28:55,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 00:28:55,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-21 00:28:55,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-21 00:28:55,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-21 00:28:55,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 00:28:55,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 00:28:55,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-21 00:28:55,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-21 00:28:55,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-21 00:28:55,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-21 00:28:55,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-21 00:28:55,790 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting P1Err0ASSERT_VIOLATIONASSERT === [P1Err0ASSERT_VIOLATIONASSERT] === [2022-10-21 00:28:55,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-21 00:28:55,790 INFO L85 PathProgramCache]: Analyzing trace with hash 98214734, now seen corresponding path program 1 times [2022-10-21 00:28:55,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-21 00:28:55,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65284443] [2022-10-21 00:28:55,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-21 00:28:55,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-21 00:28:55,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-21 00:28:55,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-21 00:28:55,896 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-21 00:28:55,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65284443] [2022-10-21 00:28:55,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65284443] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-21 00:28:55,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-21 00:28:55,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-21 00:28:55,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398541730] [2022-10-21 00:28:55,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-21 00:28:55,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-21 00:28:55,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-21 00:28:55,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-21 00:28:55,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-21 00:28:55,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 00:28:55,898 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-21 00:28:55,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 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) [2022-10-21 00:28:55,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 00:28:55,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-21 00:28:55,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-21 00:28:55,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-21 00:28:55,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-21 00:28:55,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 00:28:56,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 00:28:56,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-21 00:28:56,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-21 00:28:56,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-21 00:28:56,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-21 00:28:56,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-21 00:28:56,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-21 00:28:56,192 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting P1Err0ASSERT_VIOLATIONASSERT === [P1Err0ASSERT_VIOLATIONASSERT] === [2022-10-21 00:28:56,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-21 00:28:56,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1070195290, now seen corresponding path program 1 times [2022-10-21 00:28:56,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-21 00:28:56,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649487939] [2022-10-21 00:28:56,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-21 00:28:56,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-21 00:28:56,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-21 00:28:56,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-21 00:28:56,309 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-21 00:28:56,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649487939] [2022-10-21 00:28:56,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649487939] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-21 00:28:56,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-21 00:28:56,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-21 00:28:56,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271567622] [2022-10-21 00:28:56,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-21 00:28:56,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-21 00:28:56,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-21 00:28:56,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-21 00:28:56,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-21 00:28:56,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 00:28:56,311 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-21 00:28:56,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.75) internal successors, (323), 4 states have internal predecessors, (323), 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) [2022-10-21 00:28:56,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 00:28:56,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-21 00:28:56,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-21 00:28:56,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-21 00:28:56,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-21 00:28:56,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-21 00:28:56,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 00:28:56,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 00:28:56,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-21 00:28:56,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-21 00:28:56,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-21 00:28:56,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-21 00:28:56,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-21 00:28:56,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-21 00:28:56,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-21 00:28:56,443 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting P1Err0ASSERT_VIOLATIONASSERT === [P1Err0ASSERT_VIOLATIONASSERT] === [2022-10-21 00:28:56,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-21 00:28:56,443 INFO L85 PathProgramCache]: Analyzing trace with hash -397422057, now seen corresponding path program 1 times [2022-10-21 00:28:56,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy BADGER [2022-10-21 00:28:56,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199570520] [2022-10-21 00:28:56,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-21 00:28:56,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-21 00:28:56,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-21 00:28:56,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-21 00:28:56,573 INFO L136 FreeRefinementEngine]: Strategy BADGER found an infeasible trace [2022-10-21 00:28:56,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199570520] [2022-10-21 00:28:56,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199570520] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-21 00:28:56,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-21 00:28:56,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-21 00:28:56,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316599877] [2022-10-21 00:28:56,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-21 00:28:56,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-21 00:28:56,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy BADGER [2022-10-21 00:28:56,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-21 00:28:56,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-21 00:28:56,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-21 00:28:56,576 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-21 00:28:56,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 58.666666666666664) internal successors, (352), 6 states have internal predecessors, (352), 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) [2022-10-21 00:28:56,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-21 00:28:56,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-21 00:28:56,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-21 00:28:56,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-21 00:28:56,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-21 00:28:56,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-21 00:28:56,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-21 00:28:56,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.