/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/safe015_rmo.line713.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-10-04 08:36:54,316 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-04 08:36:54,318 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-04 08:36:54,354 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-04 08:36:54,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-04 08:36:54,356 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-04 08:36:54,360 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-04 08:36:54,362 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-04 08:36:54,362 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-04 08:36:54,366 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-04 08:36:54,366 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-04 08:36:54,368 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-04 08:36:54,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-04 08:36:54,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-04 08:36:54,370 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-04 08:36:54,372 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-04 08:36:54,373 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-04 08:36:54,373 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-04 08:36:54,374 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-04 08:36:54,375 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-04 08:36:54,376 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-04 08:36:54,377 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-04 08:36:54,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-04 08:36:54,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-04 08:36:54,386 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-04 08:36:54,394 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-04 08:36:54,418 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-04 08:36:54,418 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-04 08:36:54,419 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-04 08:36:54,419 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-04 08:36:54,420 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-04 08:36:54,420 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-04 08:36:54,420 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-04 08:36:54,420 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-04 08:36:54,420 INFO L138 SettingsManager]: * Use SBE=true [2022-10-04 08:36:54,420 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-04 08:36:54,421 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-04 08:36:54,421 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-04 08:36:54,421 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-04 08:36:54,421 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-04 08:36:54,422 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-04 08:36:54,422 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-04 08:36:54,422 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-04 08:36:54,422 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-04 08:36:54,422 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-04 08:36:54,422 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-04 08:36:54,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-04 08:36:54,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-04 08:36:54,422 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-04 08:36:54,423 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-04 08:36:54,423 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-04 08:36:54,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-04 08:36:54,423 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-04 08:36:54,424 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-04 08:36:54,424 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-04 08:36:54,424 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-04 08:36:54,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-04 08:36:54,424 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-04 08:36:54,424 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-04 08:36:54,424 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-04 08:36:54,424 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-04 08:36:54,424 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-04 08:36:54,424 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-04 08:36:54,424 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-04 08:36:54,425 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-04 08:36:54,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-04 08:36:54,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-04 08:36:54,615 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-04 08:36:54,616 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-04 08:36:54,617 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-04 08:36:54,618 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/safe015_rmo.line713.bpl [2022-10-04 08:36:54,618 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/safe015_rmo.line713.bpl' [2022-10-04 08:36:54,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-04 08:36:54,670 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-10-04 08:36:54,671 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-04 08:36:54,671 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-04 08:36:54,671 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-04 08:36:54,682 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "safe015_rmo.line713.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 08:36:54" (1/1) ... [2022-10-04 08:36:54,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "safe015_rmo.line713.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 08:36:54" (1/1) ... [2022-10-04 08:36:54,701 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "safe015_rmo.line713.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 08:36:54" (1/1) ... [2022-10-04 08:36:54,701 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "safe015_rmo.line713.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 08:36:54" (1/1) ... [2022-10-04 08:36:54,736 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "safe015_rmo.line713.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 08:36:54" (1/1) ... [2022-10-04 08:36:54,741 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "safe015_rmo.line713.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 08:36:54" (1/1) ... [2022-10-04 08:36:54,745 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "safe015_rmo.line713.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 08:36:54" (1/1) ... [2022-10-04 08:36:54,751 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-04 08:36:54,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-04 08:36:54,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-04 08:36:54,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-04 08:36:54,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "safe015_rmo.line713.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 08:36:54" (1/1) ... [2022-10-04 08:36:54,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-04 08:36:54,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 08:36:54,775 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) [2022-10-04 08:36:54,792 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 [2022-10-04 08:36:54,817 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-10-04 08:36:54,817 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-10-04 08:36:54,817 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-10-04 08:36:54,817 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-10-04 08:36:54,817 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-10-04 08:36:54,817 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-10-04 08:36:54,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-04 08:36:54,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-04 08:36:54,819 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-04 08:36:54,983 INFO L234 CfgBuilder]: Building ICFG [2022-10-04 08:36:54,984 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-04 08:36:55,677 INFO L275 CfgBuilder]: Performing block encoding [2022-10-04 08:36:55,699 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-04 08:36:55,699 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-04 08:36:55,702 INFO L202 PluginConnector]: Adding new model safe015_rmo.line713.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 08:36:55 BoogieIcfgContainer [2022-10-04 08:36:55,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-04 08:36:55,704 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-04 08:36:55,704 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-04 08:36:55,709 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-04 08:36:55,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "safe015_rmo.line713.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 08:36:54" (1/2) ... [2022-10-04 08:36:55,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dfa435 and model type safe015_rmo.line713.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 08:36:55, skipping insertion in model container [2022-10-04 08:36:55,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "safe015_rmo.line713.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 08:36:55" (2/2) ... [2022-10-04 08:36:55,715 INFO L112 eAbstractionObserver]: Analyzing ICFG safe015_rmo.line713.bpl [2022-10-04 08:36:55,725 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-04 08:36:55,732 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-04 08:36:55,733 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-04 08:36:55,733 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-04 08:36:55,919 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-10-04 08:36:55,980 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-04 08:36:55,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-04 08:36:55,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 08:36:55,983 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) [2022-10-04 08:36:55,984 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 [2022-10-04 08:36:56,015 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-04 08:36:56,027 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Err0ASSERT_VIOLATIONASSERT ======== [2022-10-04 08:36:56,033 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;@7767629, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-04 08:36:56,033 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-04 08:36:56,036 WARN L124 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2022-10-04 08:36:56,038 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-10-04 08:36:56,042 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-04 08:36:56,044 INFO L307 ceAbstractionStarter]: Result for error location P2Err0ASSERT_VIOLATIONASSERT was SAFE (1/5) [2022-10-04 08:36:56,058 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-04 08:36:56,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-04 08:36:56,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 08:36:56,060 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) [2022-10-04 08:36:56,061 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 [2022-10-04 08:36:56,064 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-04 08:36:56,064 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-04 08:36:56,065 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;@7767629, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-04 08:36:56,065 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-04 08:36:56,575 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-04 08:36:56,576 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-04 08:36:56,577 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (2/5) [2022-10-04 08:36:56,584 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-04 08:36:56,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-04 08:36:56,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 08:36:56,616 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) [2022-10-04 08:36:56,619 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 [2022-10-04 08:36:56,622 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-04 08:36:56,623 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-04 08:36:56,623 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;@7767629, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-04 08:36:56,623 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-04 08:36:56,628 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-04 08:36:56,628 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-04 08:36:56,629 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (3/5) [2022-10-04 08:36:56,634 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-04 08:36:56,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-04 08:36:56,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 08:36:56,636 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) [2022-10-04 08:36:56,637 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 [2022-10-04 08:36:56,641 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-04 08:36:56,641 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-04 08:36:56,642 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;@7767629, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-04 08:36:56,642 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-04 08:37:12,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-04 08:37:12,334 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-04 08:37:12,335 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (4/5) [2022-10-04 08:37:12,342 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-04 08:37:12,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-04 08:37:12,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 08:37:12,344 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) [2022-10-04 08:37:12,345 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 [2022-10-04 08:37:12,352 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-04 08:37:12,352 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Err0ASSERT_VIOLATIONASSERT ======== [2022-10-04 08:37:12,353 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;@7767629, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-04 08:37:12,353 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-04 08:37:12,450 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONASSERT === [P2Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 08:37:12,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 08:37:12,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1500349810, now seen corresponding path program 1 times [2022-10-04 08:37:12,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 08:37:12,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001710766] [2022-10-04 08:37:12,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 08:37:12,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 08:37:12,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 08:37:13,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 08:37:13,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 08:37:13,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001710766] [2022-10-04 08:37:13,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001710766] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 08:37:13,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 08:37:13,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-04 08:37:13,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375482199] [2022-10-04 08:37:13,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 08:37:13,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-04 08:37:13,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 08:37:13,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-04 08:37:13,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-04 08:37:13,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 08:37:13,181 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 08:37:13,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.0) internal successors, (360), 4 states have internal predecessors, (360), 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) [2022-10-04 08:37:13,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 08:37:13,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:13,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-04 08:37:13,275 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P2Err0ASSERT_VIOLATIONASSERT === [P2Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 08:37:13,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 08:37:13,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1027783759, now seen corresponding path program 1 times [2022-10-04 08:37:13,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 08:37:13,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536716239] [2022-10-04 08:37:13,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 08:37:13,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 08:37:13,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 08:37:13,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 08:37:13,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 08:37:13,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536716239] [2022-10-04 08:37:13,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536716239] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 08:37:13,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 08:37:13,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-04 08:37:13,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714947768] [2022-10-04 08:37:13,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 08:37:13,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-04 08:37:13,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 08:37:13,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-04 08:37:13,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-04 08:37:13,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 08:37:13,495 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 08:37:13,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 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) [2022-10-04 08:37:13,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:13,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 08:37:13,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:13,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:13,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-04 08:37:13,540 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P2Err0ASSERT_VIOLATIONASSERT === [P2Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 08:37:13,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 08:37:13,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1898070127, now seen corresponding path program 1 times [2022-10-04 08:37:13,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 08:37:13,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566024201] [2022-10-04 08:37:13,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 08:37:13,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 08:37:13,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 08:37:13,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 08:37:13,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 08:37:13,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566024201] [2022-10-04 08:37:13,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566024201] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 08:37:13,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 08:37:13,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-04 08:37:13,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107786511] [2022-10-04 08:37:13,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 08:37:13,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-04 08:37:13,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 08:37:13,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-04 08:37:13,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-04 08:37:13,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 08:37:13,714 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 08:37:13,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.5) internal successors, (362), 4 states have internal predecessors, (362), 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) [2022-10-04 08:37:13,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:13,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:13,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 08:37:13,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:13,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:13,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:13,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-04 08:37:13,755 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONASSERT === [P2Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 08:37:13,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 08:37:13,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1686873879, now seen corresponding path program 1 times [2022-10-04 08:37:13,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 08:37:13,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019285351] [2022-10-04 08:37:13,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 08:37:13,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 08:37:13,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 08:37:13,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 08:37:13,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 08:37:13,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019285351] [2022-10-04 08:37:13,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019285351] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 08:37:13,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 08:37:13,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-04 08:37:13,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618886719] [2022-10-04 08:37:13,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 08:37:13,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-04 08:37:13,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 08:37:13,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-04 08:37:13,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-04 08:37:13,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 08:37:13,904 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 08:37:13,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 92.5) internal successors, (370), 4 states have internal predecessors, (370), 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) [2022-10-04 08:37:13,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:13,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:13,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:13,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 08:37:13,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:13,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:13,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:13,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:13,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-04 08:37:13,987 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P2Err0ASSERT_VIOLATIONASSERT === [P2Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 08:37:13,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 08:37:13,988 INFO L85 PathProgramCache]: Analyzing trace with hash 462155531, now seen corresponding path program 1 times [2022-10-04 08:37:13,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 08:37:13,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336673657] [2022-10-04 08:37:13,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 08:37:13,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 08:37:14,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 08:37:14,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 08:37:14,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 08:37:14,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336673657] [2022-10-04 08:37:14,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336673657] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 08:37:14,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 08:37:14,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-04 08:37:14,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438987646] [2022-10-04 08:37:14,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 08:37:14,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-04 08:37:14,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 08:37:14,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-04 08:37:14,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-04 08:37:14,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 08:37:14,148 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 08:37:14,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.25) internal successors, (353), 4 states have internal predecessors, (353), 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) [2022-10-04 08:37:14,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:14,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:14,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:14,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:14,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 08:37:14,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:14,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:14,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:14,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:14,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:14,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-04 08:37:14,197 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting P2Err0ASSERT_VIOLATIONASSERT === [P2Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 08:37:14,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 08:37:14,198 INFO L85 PathProgramCache]: Analyzing trace with hash 691266761, now seen corresponding path program 1 times [2022-10-04 08:37:14,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 08:37:14,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031589605] [2022-10-04 08:37:14,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 08:37:14,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 08:37:14,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 08:37:14,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 08:37:14,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 08:37:14,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031589605] [2022-10-04 08:37:14,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031589605] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 08:37:14,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 08:37:14,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-04 08:37:14,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112279472] [2022-10-04 08:37:14,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 08:37:14,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-04 08:37:14,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 08:37:14,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-04 08:37:14,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-04 08:37:14,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 08:37:14,473 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 08:37:14,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 61.666666666666664) internal successors, (370), 6 states have internal predecessors, (370), 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) [2022-10-04 08:37:14,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:14,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:14,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:14,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:14,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:14,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 08:37:14,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:14,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:14,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:14,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:14,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:14,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 08:37:14,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-04 08:37:14,533 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting P2Err0ASSERT_VIOLATIONASSERT === [P2Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 08:37:14,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 08:37:14,536 INFO L85 PathProgramCache]: Analyzing trace with hash -374517591, now seen corresponding path program 1 times [2022-10-04 08:37:14,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 08:37:14,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812647418] [2022-10-04 08:37:14,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 08:37:14,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 08:37:14,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 08:37:14,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 08:37:14,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 08:37:14,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812647418] [2022-10-04 08:37:14,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812647418] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 08:37:14,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 08:37:14,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-04 08:37:14,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042925845] [2022-10-04 08:37:14,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 08:37:14,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-04 08:37:14,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 08:37:14,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-04 08:37:14,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-10-04 08:37:14,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 08:37:14,789 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 08:37:14,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 52.857142857142854) internal successors, (370), 8 states have internal predecessors, (370), 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) [2022-10-04 08:37:14,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:14,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:14,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:14,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:14,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:14,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 08:37:14,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 08:37:15,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:15,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:15,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:15,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:15,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:15,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 08:37:15,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 08:37:15,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-04 08:37:15,025 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting P2Err0ASSERT_VIOLATIONASSERT === [P2Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 08:37:15,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 08:37:15,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1443721008, now seen corresponding path program 1 times [2022-10-04 08:37:15,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 08:37:15,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668496662] [2022-10-04 08:37:15,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 08:37:15,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 08:37:15,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 08:37:15,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 08:37:15,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 08:37:15,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668496662] [2022-10-04 08:37:15,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668496662] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 08:37:15,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 08:37:15,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-04 08:37:15,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99818268] [2022-10-04 08:37:15,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 08:37:15,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-04 08:37:15,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 08:37:15,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-04 08:37:15,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-04 08:37:15,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 08:37:15,261 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 08:37:15,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 77.71428571428571) internal successors, (544), 7 states have internal predecessors, (544), 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) [2022-10-04 08:37:15,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:15,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:15,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:15,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:15,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:15,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 08:37:15,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 08:37:15,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 08:37:15,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:15,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:15,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:15,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:15,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:15,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 08:37:15,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 08:37:15,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-04 08:37:15,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-04 08:37:15,364 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting P2Err0ASSERT_VIOLATIONASSERT === [P2Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 08:37:15,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 08:37:15,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1490708817, now seen corresponding path program 1 times [2022-10-04 08:37:15,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 08:37:15,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799183509] [2022-10-04 08:37:15,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 08:37:15,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 08:37:15,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 08:37:15,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 08:37:15,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 08:37:15,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799183509] [2022-10-04 08:37:15,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799183509] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 08:37:15,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 08:37:15,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-04 08:37:15,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817603415] [2022-10-04 08:37:15,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 08:37:15,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-04 08:37:15,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 08:37:15,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-04 08:37:15,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-04 08:37:15,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 08:37:15,579 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 08:37:15,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 107.2) internal successors, (536), 5 states have internal predecessors, (536), 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) [2022-10-04 08:37:15,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:15,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:15,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:15,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:15,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:15,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 08:37:15,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 08:37:15,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-04 08:37:15,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 08:37:15,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:15,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:15,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:15,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:15,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:15,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 08:37:15,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 08:37:15,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-04 08:37:15,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:15,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-04 08:37:15,652 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting P2Err0ASSERT_VIOLATIONASSERT === [P2Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 08:37:15,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 08:37:15,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1344066696, now seen corresponding path program 1 times [2022-10-04 08:37:15,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 08:37:15,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923887637] [2022-10-04 08:37:15,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 08:37:15,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 08:37:15,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 08:37:15,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 08:37:15,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 08:37:15,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923887637] [2022-10-04 08:37:15,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923887637] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 08:37:15,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 08:37:15,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-04 08:37:15,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201994196] [2022-10-04 08:37:15,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 08:37:15,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-04 08:37:15,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 08:37:15,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-04 08:37:15,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-04 08:37:15,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 08:37:15,859 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 08:37:15,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 107.6) internal successors, (538), 5 states have internal predecessors, (538), 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) [2022-10-04 08:37:15,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:15,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:15,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:15,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:15,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:15,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 08:37:15,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 08:37:15,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-04 08:37:15,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:15,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 08:37:15,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:15,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:15,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:15,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:15,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:15,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 08:37:15,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 08:37:15,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-04 08:37:15,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:15,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:15,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-04 08:37:15,926 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting P2Err0ASSERT_VIOLATIONASSERT === [P2Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 08:37:15,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 08:37:15,926 INFO L85 PathProgramCache]: Analyzing trace with hash 651579537, now seen corresponding path program 1 times [2022-10-04 08:37:15,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 08:37:15,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497725659] [2022-10-04 08:37:15,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 08:37:15,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 08:37:15,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 08:37:16,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 08:37:16,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 08:37:16,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497725659] [2022-10-04 08:37:16,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497725659] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 08:37:16,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 08:37:16,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-04 08:37:16,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451754838] [2022-10-04 08:37:16,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 08:37:16,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-04 08:37:16,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 08:37:16,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-04 08:37:16,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-04 08:37:16,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 08:37:16,068 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 08:37:16,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 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) [2022-10-04 08:37:16,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:16,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:16,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:16,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:16,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:16,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 08:37:16,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 08:37:16,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-04 08:37:16,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:16,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:16,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 08:37:16,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:16,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:16,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:16,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:16,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:16,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 08:37:16,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 08:37:16,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-04 08:37:16,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:16,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:16,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:16,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-04 08:37:16,105 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting P2Err0ASSERT_VIOLATIONASSERT === [P2Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 08:37:16,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 08:37:16,105 INFO L85 PathProgramCache]: Analyzing trace with hash -381306117, now seen corresponding path program 1 times [2022-10-04 08:37:16,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 08:37:16,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716847609] [2022-10-04 08:37:16,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 08:37:16,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 08:37:16,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 08:37:16,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 08:37:16,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 08:37:16,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716847609] [2022-10-04 08:37:16,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716847609] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 08:37:16,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 08:37:16,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-04 08:37:16,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132665439] [2022-10-04 08:37:16,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 08:37:16,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-04 08:37:16,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 08:37:16,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-04 08:37:16,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-04 08:37:16,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 08:37:16,242 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 08:37:16,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 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) [2022-10-04 08:37:16,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:16,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:16,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:16,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:16,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:16,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 08:37:16,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 08:37:16,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-04 08:37:16,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:16,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:16,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:16,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 08:37:16,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:16,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:16,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:16,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:16,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:16,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 08:37:16,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 08:37:16,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-04 08:37:16,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:16,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:16,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:16,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:16,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-04 08:37:16,266 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting P2Err0ASSERT_VIOLATIONASSERT === [P2Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 08:37:16,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 08:37:16,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1759118533, now seen corresponding path program 1 times [2022-10-04 08:37:16,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 08:37:16,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285765035] [2022-10-04 08:37:16,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 08:37:16,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 08:37:16,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 08:37:16,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 08:37:16,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 08:37:16,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285765035] [2022-10-04 08:37:16,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285765035] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 08:37:16,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 08:37:16,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-04 08:37:16,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039935556] [2022-10-04 08:37:16,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 08:37:16,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-04 08:37:16,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 08:37:16,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-04 08:37:16,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-04 08:37:16,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 08:37:16,378 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 08:37:16,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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) [2022-10-04 08:37:16,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:16,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:16,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:16,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:16,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:16,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 08:37:16,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 08:37:16,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-04 08:37:16,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:16,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:16,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:16,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:16,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 08:37:16,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:16,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:16,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:16,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:16,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:16,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 08:37:16,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 08:37:16,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-04 08:37:16,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:16,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:16,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:16,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:16,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:16,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-04 08:37:16,467 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting P2Err0ASSERT_VIOLATIONASSERT === [P2Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 08:37:16,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 08:37:16,468 INFO L85 PathProgramCache]: Analyzing trace with hash 720696156, now seen corresponding path program 1 times [2022-10-04 08:37:16,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 08:37:16,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119085828] [2022-10-04 08:37:16,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 08:37:16,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 08:37:16,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 08:37:16,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 08:37:16,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 08:37:16,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119085828] [2022-10-04 08:37:16,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119085828] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 08:37:16,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 08:37:16,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-04 08:37:16,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147581971] [2022-10-04 08:37:16,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 08:37:16,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-04 08:37:16,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 08:37:16,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-04 08:37:16,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-04 08:37:16,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 08:37:16,738 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 08:37:16,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 77.71428571428571) internal successors, (544), 7 states have internal predecessors, (544), 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) [2022-10-04 08:37:16,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:16,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:16,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:16,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:16,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:16,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 08:37:16,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 08:37:16,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-04 08:37:16,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:16,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:16,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:16,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:16,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:16,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 08:37:16,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:16,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:16,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:16,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:16,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:16,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 08:37:16,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 08:37:16,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-04 08:37:16,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:16,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:16,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:16,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:16,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:16,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-04 08:37:16,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-04 08:37:16,879 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting P2Err0ASSERT_VIOLATIONASSERT === [P2Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 08:37:16,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 08:37:16,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1689646271, now seen corresponding path program 1 times [2022-10-04 08:37:16,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 08:37:16,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130563408] [2022-10-04 08:37:16,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 08:37:16,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 08:37:16,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 08:37:17,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 08:37:17,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 08:37:17,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130563408] [2022-10-04 08:37:17,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130563408] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 08:37:17,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 08:37:17,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-04 08:37:17,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937007837] [2022-10-04 08:37:17,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 08:37:17,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-04 08:37:17,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 08:37:17,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-04 08:37:17,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-04 08:37:17,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 08:37:17,043 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 08:37:17,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 89.66666666666667) internal successors, (538), 6 states have internal predecessors, (538), 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) [2022-10-04 08:37:17,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:17,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:17,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:17,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:17,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:17,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 08:37:17,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 08:37:17,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-04 08:37:17,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:17,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:17,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:17,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:17,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:17,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-04 08:37:17,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 08:37:17,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:17,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:17,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:17,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:17,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:17,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 08:37:17,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 08:37:17,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-04 08:37:17,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:17,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:17,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:17,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:17,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:17,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-04 08:37:17,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 08:37:17,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-04 08:37:17,137 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting P2Err0ASSERT_VIOLATIONASSERT === [P2Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 08:37:17,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 08:37:17,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1946569840, now seen corresponding path program 1 times [2022-10-04 08:37:17,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 08:37:17,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721275458] [2022-10-04 08:37:17,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 08:37:17,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 08:37:17,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 08:37:17,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 08:37:17,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 08:37:17,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721275458] [2022-10-04 08:37:17,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721275458] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 08:37:17,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 08:37:17,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-04 08:37:17,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020088699] [2022-10-04 08:37:17,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 08:37:17,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-04 08:37:17,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 08:37:17,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-04 08:37:17,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-10-04 08:37:17,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 08:37:17,325 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 08:37:17,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 68.0) internal successors, (544), 8 states have internal predecessors, (544), 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) [2022-10-04 08:37:17,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:17,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:17,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:17,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:17,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 08:37:17,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 08:37:17,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 08:37:17,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-04 08:37:17,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:17,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:17,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:17,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 08:37:17,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-04 08:37:17,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-04 08:37:17,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 08:37:17,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.