/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/stack_longer-1.line425.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-09-30 08:20:10,894 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-30 08:20:10,895 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-30 08:20:10,933 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-30 08:20:10,934 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-30 08:20:10,935 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-30 08:20:10,937 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-30 08:20:10,941 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-30 08:20:10,943 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-30 08:20:10,948 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-30 08:20:10,949 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-30 08:20:10,950 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-30 08:20:10,950 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-30 08:20:10,950 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-30 08:20:10,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-30 08:20:10,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-30 08:20:10,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-30 08:20:10,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-30 08:20:10,954 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-30 08:20:10,955 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-30 08:20:10,955 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-30 08:20:10,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-30 08:20:10,963 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-30 08:20:10,965 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-30 08:20:10,971 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-30 08:20:10,978 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-30 08:20:10,978 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-30 08:20:10,979 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-30 08:20:10,980 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-09-30 08:20:11,006 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-30 08:20:11,006 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-30 08:20:11,007 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-30 08:20:11,007 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-30 08:20:11,007 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-30 08:20:11,007 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-30 08:20:11,008 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-30 08:20:11,008 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-30 08:20:11,008 INFO L138 SettingsManager]: * Use SBE=true [2022-09-30 08:20:11,008 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-30 08:20:11,009 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-30 08:20:11,009 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-30 08:20:11,009 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-30 08:20:11,009 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-30 08:20:11,009 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-30 08:20:11,010 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-30 08:20:11,010 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-30 08:20:11,010 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-30 08:20:11,010 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-30 08:20:11,010 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-30 08:20:11,010 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-30 08:20:11,010 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-30 08:20:11,010 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-30 08:20:11,011 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-30 08:20:11,011 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-30 08:20:11,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-30 08:20:11,012 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-30 08:20:11,012 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-30 08:20:11,012 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-30 08:20:11,012 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-30 08:20:11,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-30 08:20:11,012 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-30 08:20:11,012 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-09-30 08:20:11,012 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-09-30 08:20:11,013 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-30 08:20:11,013 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-09-30 08:20:11,013 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-09-30 08:20:11,013 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-09-30 08:20:11,013 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-30 08:20:11,198 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-30 08:20:11,221 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-30 08:20:11,223 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-30 08:20:11,224 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-30 08:20:11,225 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-30 08:20:11,226 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/stack_longer-1.line425.bpl [2022-09-30 08:20:11,226 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/stack_longer-1.line425.bpl' [2022-09-30 08:20:11,272 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-30 08:20:11,273 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-09-30 08:20:11,274 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-30 08:20:11,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-30 08:20:11,275 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-30 08:20:11,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "stack_longer-1.line425.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:20:11" (1/1) ... [2022-09-30 08:20:11,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "stack_longer-1.line425.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:20:11" (1/1) ... [2022-09-30 08:20:11,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "stack_longer-1.line425.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:20:11" (1/1) ... [2022-09-30 08:20:11,317 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "stack_longer-1.line425.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:20:11" (1/1) ... [2022-09-30 08:20:11,327 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "stack_longer-1.line425.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:20:11" (1/1) ... [2022-09-30 08:20:11,330 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "stack_longer-1.line425.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:20:11" (1/1) ... [2022-09-30 08:20:11,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "stack_longer-1.line425.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:20:11" (1/1) ... [2022-09-30 08:20:11,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-30 08:20:11,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-30 08:20:11,355 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-30 08:20:11,355 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-30 08:20:11,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "stack_longer-1.line425.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:20:11" (1/1) ... [2022-09-30 08:20:11,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-30 08:20:11,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 08:20:11,406 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) [2022-09-30 08:20:11,431 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 [2022-09-30 08:20:11,464 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-09-30 08:20:11,465 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-09-30 08:20:11,465 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-09-30 08:20:11,465 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-09-30 08:20:11,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-30 08:20:11,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-30 08:20:11,466 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-30 08:20:11,649 INFO L234 CfgBuilder]: Building ICFG [2022-09-30 08:20:11,650 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-30 08:20:11,919 INFO L275 CfgBuilder]: Performing block encoding [2022-09-30 08:20:11,929 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-30 08:20:11,929 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-09-30 08:20:11,931 INFO L202 PluginConnector]: Adding new model stack_longer-1.line425.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 08:20:11 BoogieIcfgContainer [2022-09-30 08:20:11,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-30 08:20:11,932 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-30 08:20:11,932 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-30 08:20:11,950 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-30 08:20:11,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "stack_longer-1.line425.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:20:11" (1/2) ... [2022-09-30 08:20:11,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23b2c48 and model type stack_longer-1.line425.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.09 08:20:11, skipping insertion in model container [2022-09-30 08:20:11,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "stack_longer-1.line425.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 08:20:11" (2/2) ... [2022-09-30 08:20:11,954 INFO L112 eAbstractionObserver]: Analyzing ICFG stack_longer-1.line425.bpl [2022-09-30 08:20:11,959 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-30 08:20:11,966 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-30 08:20:11,966 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-09-30 08:20:11,966 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-30 08:20:12,089 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-09-30 08:20:12,131 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-30 08:20:12,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-30 08:20:12,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 08:20:12,152 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) [2022-09-30 08:20:12,154 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 [2022-09-30 08:20:12,175 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-30 08:20:12,180 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-09-30 08:20:12,185 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;@50d91f0b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-30 08:20:12,185 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-30 08:20:12,449 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-09-30 08:20:12,455 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-09-30 08:20:12,457 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (1/4) [2022-09-30 08:20:12,470 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-30 08:20:12,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-30 08:20:12,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 08:20:12,473 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) [2022-09-30 08:20:12,475 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 [2022-09-30 08:20:12,479 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-30 08:20:12,483 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-09-30 08:20:12,483 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;@50d91f0b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-30 08:20:12,484 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-30 08:20:12,487 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-09-30 08:20:12,488 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-09-30 08:20:12,488 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (2/4) [2022-09-30 08:20:12,490 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-30 08:20:12,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-30 08:20:12,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 08:20:12,529 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) [2022-09-30 08:20:12,531 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 [2022-09-30 08:20:12,534 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-30 08:20:12,534 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t2Err0ASSERT_VIOLATIONASSERT ======== [2022-09-30 08:20:12,535 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;@50d91f0b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-30 08:20:12,535 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-30 08:20:12,535 WARN L124 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2022-09-30 08:20:12,535 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-09-30 08:20:12,536 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-09-30 08:20:12,536 INFO L307 ceAbstractionStarter]: Result for error location t2Err0ASSERT_VIOLATIONASSERT was SAFE (3/4) [2022-09-30 08:20:12,538 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-30 08:20:12,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-30 08:20:12,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 08:20:12,541 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) [2022-09-30 08:20:12,542 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 [2022-09-30 08:20:12,545 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-30 08:20:12,546 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t2Err0ASSERT_VIOLATIONASSERT ======== [2022-09-30 08:20:12,546 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;@50d91f0b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-30 08:20:12,546 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-30 08:20:12,884 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t2Err0ASSERT_VIOLATIONASSERT === [t2Err0ASSERT_VIOLATIONASSERT] === [2022-09-30 08:20:12,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-30 08:20:12,888 INFO L85 PathProgramCache]: Analyzing trace with hash -607368197, now seen corresponding path program 1 times [2022-09-30 08:20:12,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-30 08:20:12,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900268584] [2022-09-30 08:20:12,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 08:20:12,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-30 08:20:13,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 08:20:13,164 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-30 08:20:13,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-30 08:20:13,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900268584] [2022-09-30 08:20:13,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900268584] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-30 08:20:13,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-30 08:20:13,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-30 08:20:13,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313244555] [2022-09-30 08:20:13,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-30 08:20:13,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-09-30 08:20:13,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-30 08:20:13,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-09-30 08:20:13,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-09-30 08:20:13,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:13,187 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-30 08:20:13,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 114.5) internal successors, (229), 2 states have internal predecessors, (229), 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) [2022-09-30 08:20:13,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:13,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:13,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-30 08:20:13,340 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2Err0ASSERT_VIOLATIONASSERT === [t2Err0ASSERT_VIOLATIONASSERT] === [2022-09-30 08:20:13,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-30 08:20:13,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1850098017, now seen corresponding path program 1 times [2022-09-30 08:20:13,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-30 08:20:13,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284569203] [2022-09-30 08:20:13,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 08:20:13,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-30 08:20:13,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 08:20:13,715 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-09-30 08:20:13,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-30 08:20:13,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284569203] [2022-09-30 08:20:13,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284569203] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-30 08:20:13,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139895735] [2022-09-30 08:20:13,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 08:20:13,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-30 08:20:13,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 08:20:13,743 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-30 08:20:13,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-09-30 08:20:13,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 08:20:13,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-30 08:20:13,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-30 08:20:13,942 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-30 08:20:13,942 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-30 08:20:13,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139895735] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-30 08:20:13,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-30 08:20:13,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2022-09-30 08:20:13,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496395931] [2022-09-30 08:20:13,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-30 08:20:13,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-30 08:20:13,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-30 08:20:13,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-30 08:20:13,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-09-30 08:20:13,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:13,947 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-30 08:20:13,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 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) [2022-09-30 08:20:13,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:13,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:14,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:14,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-30 08:20:14,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-09-30 08:20:14,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-30 08:20:14,422 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONASSERT === [t2Err0ASSERT_VIOLATIONASSERT] === [2022-09-30 08:20:14,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-30 08:20:14,423 INFO L85 PathProgramCache]: Analyzing trace with hash -319659310, now seen corresponding path program 1 times [2022-09-30 08:20:14,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-30 08:20:14,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046966772] [2022-09-30 08:20:14,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 08:20:14,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-30 08:20:14,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 08:20:14,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-30 08:20:14,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-30 08:20:14,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046966772] [2022-09-30 08:20:14,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046966772] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-30 08:20:14,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-30 08:20:14,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-30 08:20:14,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265770807] [2022-09-30 08:20:14,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-30 08:20:14,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-30 08:20:14,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-30 08:20:14,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-30 08:20:14,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-09-30 08:20:14,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:14,559 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-30 08:20:14,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 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) [2022-09-30 08:20:14,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:14,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-09-30 08:20:14,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:15,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:15,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-30 08:20:15,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:20:15,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-30 08:20:15,087 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err0ASSERT_VIOLATIONASSERT === [t2Err0ASSERT_VIOLATIONASSERT] === [2022-09-30 08:20:15,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-30 08:20:15,088 INFO L85 PathProgramCache]: Analyzing trace with hash 958461280, now seen corresponding path program 1 times [2022-09-30 08:20:15,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-30 08:20:15,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721392500] [2022-09-30 08:20:15,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 08:20:15,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-30 08:20:15,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 08:20:15,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-30 08:20:15,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-30 08:20:15,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721392500] [2022-09-30 08:20:15,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721392500] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-30 08:20:15,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-30 08:20:15,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-09-30 08:20:15,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195422784] [2022-09-30 08:20:15,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-30 08:20:15,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-30 08:20:15,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-30 08:20:15,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-30 08:20:15,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-30 08:20:15,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:15,174 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-30 08:20:15,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 37.666666666666664) internal successors, (226), 6 states have internal predecessors, (226), 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) [2022-09-30 08:20:15,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:15,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-09-30 08:20:15,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:20:15,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:15,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:15,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-30 08:20:15,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:20:15,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:20:15,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-30 08:20:15,638 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err0ASSERT_VIOLATIONASSERT === [t2Err0ASSERT_VIOLATIONASSERT] === [2022-09-30 08:20:15,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-30 08:20:15,639 INFO L85 PathProgramCache]: Analyzing trace with hash -174389112, now seen corresponding path program 2 times [2022-09-30 08:20:15,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-30 08:20:15,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513780312] [2022-09-30 08:20:15,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 08:20:15,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-30 08:20:15,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 08:20:15,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-30 08:20:15,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-30 08:20:15,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513780312] [2022-09-30 08:20:15,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513780312] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-30 08:20:15,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-30 08:20:15,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-30 08:20:15,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054150873] [2022-09-30 08:20:15,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-30 08:20:15,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-30 08:20:15,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-30 08:20:15,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-30 08:20:15,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-30 08:20:15,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:15,721 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-30 08:20:15,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2022-09-30 08:20:15,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:15,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-09-30 08:20:15,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:20:15,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:20:15,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:15,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:15,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-30 08:20:15,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:20:15,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:20:15,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:20:15,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-30 08:20:15,934 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err0ASSERT_VIOLATIONASSERT === [t2Err0ASSERT_VIOLATIONASSERT] === [2022-09-30 08:20:15,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-30 08:20:15,935 INFO L85 PathProgramCache]: Analyzing trace with hash -850850686, now seen corresponding path program 1 times [2022-09-30 08:20:15,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-30 08:20:15,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074992285] [2022-09-30 08:20:15,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 08:20:15,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-30 08:20:15,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 08:20:16,033 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-09-30 08:20:16,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-30 08:20:16,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074992285] [2022-09-30 08:20:16,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074992285] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-30 08:20:16,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-30 08:20:16,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-09-30 08:20:16,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548651466] [2022-09-30 08:20:16,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-30 08:20:16,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-30 08:20:16,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-30 08:20:16,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-30 08:20:16,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-09-30 08:20:16,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:16,036 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-30 08:20:16,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 6 states have internal predecessors, (265), 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) [2022-09-30 08:20:16,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:16,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-09-30 08:20:16,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:20:16,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:20:16,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:20:16,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:16,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:16,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-30 08:20:16,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:20:16,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:20:16,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:20:16,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:20:16,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-30 08:20:16,219 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err0ASSERT_VIOLATIONASSERT === [t2Err0ASSERT_VIOLATIONASSERT] === [2022-09-30 08:20:16,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-30 08:20:16,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1245537807, now seen corresponding path program 1 times [2022-09-30 08:20:16,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-30 08:20:16,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019937696] [2022-09-30 08:20:16,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 08:20:16,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-30 08:20:16,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 08:20:16,539 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-09-30 08:20:16,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-30 08:20:16,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019937696] [2022-09-30 08:20:16,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019937696] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-30 08:20:16,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981111854] [2022-09-30 08:20:16,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 08:20:16,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-30 08:20:16,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 08:20:16,541 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-30 08:20:16,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-09-30 08:20:16,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 08:20:16,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 556 conjuncts, 39 conjunts are in the unsatisfiable core [2022-09-30 08:20:16,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-30 08:20:17,431 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-09-30 08:20:17,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-30 08:20:17,783 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-30 08:20:17,784 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 28 [2022-09-30 08:20:18,374 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-09-30 08:20:18,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981111854] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-30 08:20:18,375 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-30 08:20:18,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 16] total 38 [2022-09-30 08:20:18,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201871972] [2022-09-30 08:20:18,375 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-30 08:20:18,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-09-30 08:20:18,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-30 08:20:18,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-09-30 08:20:18,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1358, Unknown=0, NotChecked=0, Total=1482 [2022-09-30 08:20:18,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:18,377 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-30 08:20:18,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 12.842105263157896) internal successors, (488), 39 states have internal predecessors, (488), 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) [2022-09-30 08:20:18,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:18,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-09-30 08:20:18,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:20:18,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:20:18,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:20:18,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:20:18,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:19,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:19,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:20:19,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:20:19,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:20:19,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:20:19,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:20:19,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-09-30 08:20:19,752 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-09-30 08:20:19,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-30 08:20:19,950 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err0ASSERT_VIOLATIONASSERT === [t2Err0ASSERT_VIOLATIONASSERT] === [2022-09-30 08:20:19,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-30 08:20:19,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1053479239, now seen corresponding path program 1 times [2022-09-30 08:20:19,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-30 08:20:19,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202388530] [2022-09-30 08:20:19,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 08:20:19,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-30 08:20:19,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 08:20:20,138 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 16 proven. 15 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-09-30 08:20:20,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-30 08:20:20,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202388530] [2022-09-30 08:20:20,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202388530] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-30 08:20:20,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [504137389] [2022-09-30 08:20:20,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 08:20:20,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-30 08:20:20,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 08:20:20,140 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-30 08:20:20,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-09-30 08:20:20,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 08:20:20,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 656 conjuncts, 15 conjunts are in the unsatisfiable core [2022-09-30 08:20:20,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-30 08:20:20,587 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 16 proven. 15 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-09-30 08:20:20,587 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-30 08:20:20,875 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 16 proven. 15 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-09-30 08:20:20,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [504137389] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-30 08:20:20,875 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-30 08:20:20,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 8 [2022-09-30 08:20:20,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013636713] [2022-09-30 08:20:20,875 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-30 08:20:20,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-09-30 08:20:20,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-30 08:20:20,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-09-30 08:20:20,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-09-30 08:20:20,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:20,877 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-30 08:20:20,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 35.375) internal successors, (283), 8 states have internal predecessors, (283), 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) [2022-09-30 08:20:20,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:20,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:20:20,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:20:20,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:20:20,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:20:20,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:20:20,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2022-09-30 08:20:20,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:21,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:21,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:20:21,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:20:21,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:20:21,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:20:21,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:20:21,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-09-30 08:20:21,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-09-30 08:20:21,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-09-30 08:20:21,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-30 08:20:21,741 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err0ASSERT_VIOLATIONASSERT === [t2Err0ASSERT_VIOLATIONASSERT] === [2022-09-30 08:20:21,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-30 08:20:21,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1007801312, now seen corresponding path program 1 times [2022-09-30 08:20:21,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-30 08:20:21,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165246840] [2022-09-30 08:20:21,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 08:20:21,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-30 08:20:21,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 08:20:22,130 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-09-30 08:20:22,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-30 08:20:22,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165246840] [2022-09-30 08:20:22,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165246840] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-30 08:20:22,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147461453] [2022-09-30 08:20:22,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 08:20:22,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-30 08:20:22,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 08:20:22,133 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-30 08:20:22,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-09-30 08:20:22,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 08:20:22,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 749 conjuncts, 57 conjunts are in the unsatisfiable core [2022-09-30 08:20:22,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-30 08:20:23,832 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 48 proven. 75 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-09-30 08:20:23,832 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-30 08:20:24,421 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-30 08:20:24,424 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 31 [2022-09-30 08:20:25,159 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 48 proven. 75 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-09-30 08:20:25,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147461453] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-30 08:20:25,161 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-30 08:20:25,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 26, 21] total 63 [2022-09-30 08:20:25,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462061990] [2022-09-30 08:20:25,161 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-30 08:20:25,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-09-30 08:20:25,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-30 08:20:25,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-09-30 08:20:25,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=267, Invalid=3765, Unknown=0, NotChecked=0, Total=4032 [2022-09-30 08:20:25,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:25,167 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-30 08:20:25,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 15.571428571428571) internal successors, (981), 64 states have internal predecessors, (981), 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) [2022-09-30 08:20:25,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:25,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:20:25,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:20:25,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:20:25,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:20:25,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:20:25,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-09-30 08:20:25,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-09-30 08:20:25,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:35,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:35,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:20:35,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:20:35,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:20:35,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:20:35,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:20:35,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-09-30 08:20:35,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-09-30 08:20:35,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2022-09-30 08:20:35,725 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-09-30 08:20:35,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-09-30 08:20:35,925 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t2Err0ASSERT_VIOLATIONASSERT === [t2Err0ASSERT_VIOLATIONASSERT] === [2022-09-30 08:20:35,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-30 08:20:35,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1916693126, now seen corresponding path program 2 times [2022-09-30 08:20:35,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-30 08:20:35,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241618316] [2022-09-30 08:20:35,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 08:20:35,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-30 08:20:36,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 08:20:36,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1522 backedges. 1099 proven. 0 refuted. 0 times theorem prover too weak. 423 trivial. 0 not checked. [2022-09-30 08:20:36,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-30 08:20:36,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241618316] [2022-09-30 08:20:36,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241618316] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-30 08:20:36,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-30 08:20:36,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-30 08:20:36,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153862170] [2022-09-30 08:20:36,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-30 08:20:36,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-30 08:20:36,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-30 08:20:36,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-30 08:20:36,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-30 08:20:36,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:36,257 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-30 08:20:36,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 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) [2022-09-30 08:20:36,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:36,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:20:36,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:20:36,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:20:36,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:20:36,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:20:36,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-09-30 08:20:36,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-09-30 08:20:36,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 148 states. [2022-09-30 08:20:36,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:36,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:36,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:20:36,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:20:36,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:20:36,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:20:36,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:20:36,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-09-30 08:20:36,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-09-30 08:20:36,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 150 states. [2022-09-30 08:20:36,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:20:36,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-09-30 08:20:36,747 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t2Err0ASSERT_VIOLATIONASSERT === [t2Err0ASSERT_VIOLATIONASSERT] === [2022-09-30 08:20:36,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-30 08:20:36,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1367795075, now seen corresponding path program 3 times [2022-09-30 08:20:36,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-30 08:20:36,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587214936] [2022-09-30 08:20:36,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 08:20:36,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-30 08:20:36,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 08:20:37,367 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 0 proven. 464 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2022-09-30 08:20:37,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-30 08:20:37,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587214936] [2022-09-30 08:20:37,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587214936] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-30 08:20:37,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582163005] [2022-09-30 08:20:37,369 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-09-30 08:20:37,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-30 08:20:37,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 08:20:37,370 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-30 08:20:37,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-09-30 08:20:37,571 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-09-30 08:20:37,571 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-30 08:20:37,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 64 conjunts are in the unsatisfiable core [2022-09-30 08:20:37,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-30 08:20:38,565 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 232 proven. 146 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2022-09-30 08:20:38,566 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-30 08:20:39,120 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-30 08:20:39,121 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 31 [2022-09-30 08:20:39,577 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 599 trivial. 0 not checked. [2022-09-30 08:20:39,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582163005] provided 1 perfect and 1 imperfect interpolant sequences [2022-09-30 08:20:39,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-09-30 08:20:39,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [25, 23] total 55 [2022-09-30 08:20:39,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186505442] [2022-09-30 08:20:39,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-30 08:20:39,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-09-30 08:20:39,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-30 08:20:39,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-09-30 08:20:39,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=2850, Unknown=0, NotChecked=0, Total=3080 [2022-09-30 08:20:39,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:39,580 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-30 08:20:39,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 16.894736842105264) internal successors, (321), 20 states have internal predecessors, (321), 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) [2022-09-30 08:20:39,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:39,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:20:39,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:20:39,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:20:39,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:20:39,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:20:39,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-09-30 08:20:39,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-09-30 08:20:39,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 150 states. [2022-09-30 08:20:39,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:20:39,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:58,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:20:58,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:20:58,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:20:58,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:20:58,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:20:58,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:20:58,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-09-30 08:20:58,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-09-30 08:20:58,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 176 states. [2022-09-30 08:20:58,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:20:58,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2022-09-30 08:20:59,001 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-09-30 08:20:59,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-30 08:20:59,184 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t2Err0ASSERT_VIOLATIONASSERT === [t2Err0ASSERT_VIOLATIONASSERT] === [2022-09-30 08:20:59,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-30 08:20:59,184 INFO L85 PathProgramCache]: Analyzing trace with hash 2014437566, now seen corresponding path program 4 times [2022-09-30 08:20:59,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-30 08:20:59,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269318354] [2022-09-30 08:20:59,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 08:20:59,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-30 08:20:59,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 08:21:00,299 INFO L134 CoverageAnalysis]: Checked inductivity of 1517 backedges. 0 proven. 1010 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2022-09-30 08:21:00,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-30 08:21:00,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269318354] [2022-09-30 08:21:00,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269318354] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-30 08:21:00,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468655572] [2022-09-30 08:21:00,300 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-09-30 08:21:00,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-30 08:21:00,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 08:21:00,301 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-30 08:21:00,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-09-30 08:21:00,911 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-09-30 08:21:00,911 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-30 08:21:00,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 1473 conjuncts, 131 conjunts are in the unsatisfiable core [2022-09-30 08:21:00,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-30 08:21:01,452 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-09-30 08:21:01,452 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-09-30 08:21:01,542 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-09-30 08:21:01,746 INFO L356 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-09-30 08:21:01,746 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-09-30 08:21:01,873 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-09-30 08:21:06,825 INFO L134 CoverageAnalysis]: Checked inductivity of 1517 backedges. 40 proven. 650 refuted. 0 times theorem prover too weak. 827 trivial. 0 not checked. [2022-09-30 08:21:06,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-30 08:21:19,544 WARN L233 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-09-30 08:21:24,890 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-30 08:21:24,890 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 111 treesize of output 115 [2022-09-30 08:21:25,222 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-30 08:21:25,223 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 91 treesize of output 361 [2022-09-30 08:21:36,179 INFO L134 CoverageAnalysis]: Checked inductivity of 1517 backedges. 0 proven. 610 refuted. 0 times theorem prover too weak. 907 trivial. 0 not checked. [2022-09-30 08:21:36,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468655572] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-30 08:21:36,179 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-30 08:21:36,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 34, 24] total 86 [2022-09-30 08:21:36,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909088994] [2022-09-30 08:21:36,179 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-30 08:21:36,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2022-09-30 08:21:36,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-30 08:21:36,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2022-09-30 08:21:36,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=480, Invalid=7002, Unknown=0, NotChecked=0, Total=7482 [2022-09-30 08:21:36,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:21:36,183 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-30 08:21:36,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 86 states have (on average 13.127906976744185) internal successors, (1129), 87 states have internal predecessors, (1129), 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) [2022-09-30 08:21:36,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:21:36,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:21:36,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:21:36,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:21:36,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:21:36,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:21:36,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-09-30 08:21:36,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-09-30 08:21:36,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 176 states. [2022-09-30 08:21:36,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:21:36,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. [2022-09-30 08:21:36,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:21:56,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:21:56,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:21:56,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:21:56,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:21:56,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:21:56,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:21:56,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-09-30 08:21:56,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-09-30 08:21:56,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 241 states. [2022-09-30 08:21:56,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:21:56,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 147 states. [2022-09-30 08:21:56,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2022-09-30 08:21:56,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-09-30 08:21:56,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-09-30 08:21:56,911 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t2Err0ASSERT_VIOLATIONASSERT === [t2Err0ASSERT_VIOLATIONASSERT] === [2022-09-30 08:21:56,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-30 08:21:56,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1032338331, now seen corresponding path program 5 times [2022-09-30 08:21:56,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-30 08:21:56,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152238668] [2022-09-30 08:21:56,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 08:21:56,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-30 08:21:57,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 08:21:57,901 INFO L134 CoverageAnalysis]: Checked inductivity of 3431 backedges. 1364 proven. 1527 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2022-09-30 08:21:57,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-30 08:21:57,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152238668] [2022-09-30 08:21:57,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152238668] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-30 08:21:57,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939669198] [2022-09-30 08:21:57,902 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-09-30 08:21:57,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-30 08:21:57,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 08:21:57,903 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-30 08:21:57,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-09-30 08:21:58,706 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2022-09-30 08:21:58,706 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-30 08:21:58,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 1998 conjuncts, 117 conjunts are in the unsatisfiable core [2022-09-30 08:21:58,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-30 08:22:01,921 INFO L134 CoverageAnalysis]: Checked inductivity of 3431 backedges. 644 proven. 1444 refuted. 0 times theorem prover too weak. 1343 trivial. 0 not checked. [2022-09-30 08:22:01,922 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-30 08:22:05,168 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-30 08:22:05,169 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 31 [2022-09-30 08:22:05,516 INFO L134 CoverageAnalysis]: Checked inductivity of 3431 backedges. 728 proven. 1290 refuted. 0 times theorem prover too weak. 1413 trivial. 0 not checked. [2022-09-30 08:22:05,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939669198] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-30 08:22:05,516 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-30 08:22:05,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 26, 20] total 66 [2022-09-30 08:22:05,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394243009] [2022-09-30 08:22:05,517 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-30 08:22:05,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-09-30 08:22:05,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-30 08:22:05,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-09-30 08:22:05,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=204, Invalid=4218, Unknown=0, NotChecked=0, Total=4422 [2022-09-30 08:22:05,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:22:05,520 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-30 08:22:05,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 66 states have (on average 19.28787878787879) internal successors, (1273), 67 states have internal predecessors, (1273), 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) [2022-09-30 08:22:05,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:22:05,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:22:05,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:22:05,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:22:05,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:22:05,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:22:05,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-09-30 08:22:05,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-09-30 08:22:05,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 241 states. [2022-09-30 08:22:05,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:22:05,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 147 states. [2022-09-30 08:22:05,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 190 states. [2022-09-30 08:22:05,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:22:44,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:22:44,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:22:44,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:22:44,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:22:44,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:22:44,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:22:44,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-09-30 08:22:44,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-09-30 08:22:44,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 242 states. [2022-09-30 08:22:44,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:22:44,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 147 states. [2022-09-30 08:22:44,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2022-09-30 08:22:44,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 441 states. [2022-09-30 08:22:45,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-09-30 08:22:45,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-09-30 08:22:45,196 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t2Err0ASSERT_VIOLATIONASSERT === [t2Err0ASSERT_VIOLATIONASSERT] === [2022-09-30 08:22:45,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-30 08:22:45,197 INFO L85 PathProgramCache]: Analyzing trace with hash -868196791, now seen corresponding path program 6 times [2022-09-30 08:22:45,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-30 08:22:45,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971093219] [2022-09-30 08:22:45,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 08:22:45,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-30 08:22:45,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 08:22:46,252 INFO L134 CoverageAnalysis]: Checked inductivity of 8687 backedges. 192 proven. 2640 refuted. 0 times theorem prover too weak. 5855 trivial. 0 not checked. [2022-09-30 08:22:46,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-30 08:22:46,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971093219] [2022-09-30 08:22:46,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971093219] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-30 08:22:46,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134718912] [2022-09-30 08:22:46,252 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-09-30 08:22:46,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-30 08:22:46,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 08:22:46,254 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-30 08:22:46,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-09-30 08:22:46,520 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-09-30 08:22:46,520 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-30 08:22:46,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 52 conjunts are in the unsatisfiable core [2022-09-30 08:22:46,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-30 08:22:51,896 INFO L134 CoverageAnalysis]: Checked inductivity of 8687 backedges. 698 proven. 312 refuted. 0 times theorem prover too weak. 7677 trivial. 0 not checked. [2022-09-30 08:22:51,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-30 08:22:52,441 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-30 08:22:52,441 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 32 [2022-09-30 08:22:58,385 INFO L134 CoverageAnalysis]: Checked inductivity of 8687 backedges. 0 proven. 1010 refuted. 0 times theorem prover too weak. 7677 trivial. 0 not checked. [2022-09-30 08:22:58,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134718912] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-30 08:22:58,385 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-30 08:22:58,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 18, 18] total 45 [2022-09-30 08:22:58,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414816289] [2022-09-30 08:22:58,386 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-30 08:22:58,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-09-30 08:22:58,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-30 08:22:58,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-09-30 08:22:58,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=1834, Unknown=0, NotChecked=0, Total=1980 [2022-09-30 08:22:58,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:22:58,389 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-30 08:22:58,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 23.044444444444444) internal successors, (1037), 45 states have internal predecessors, (1037), 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) [2022-09-30 08:22:58,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:22:58,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:22:58,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:22:58,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:22:58,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:22:58,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:22:58,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-09-30 08:22:58,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-09-30 08:22:58,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 242 states. [2022-09-30 08:22:58,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:22:58,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 147 states. [2022-09-30 08:22:58,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 190 states. [2022-09-30 08:22:58,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 441 states. [2022-09-30 08:22:58,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:23:26,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:23:26,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:23:26,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:23:26,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:23:26,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:23:26,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-30 08:23:26,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-09-30 08:23:26,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-09-30 08:23:26,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 242 states. [2022-09-30 08:23:26,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:23:26,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2022-09-30 08:23:26,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2022-09-30 08:23:26,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 518 states. [2022-09-30 08:23:26,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 238 states. [2022-09-30 08:23:26,583 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-09-30 08:23:26,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-09-30 08:23:26,781 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t2Err0ASSERT_VIOLATIONASSERT === [t2Err0ASSERT_VIOLATIONASSERT] === [2022-09-30 08:23:26,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-30 08:23:26,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1296998643, now seen corresponding path program 1 times [2022-09-30 08:23:26,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-30 08:23:26,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29249027] [2022-09-30 08:23:26,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 08:23:26,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-30 08:23:26,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 08:23:28,728 INFO L134 CoverageAnalysis]: Checked inductivity of 49098 backedges. 1791 proven. 0 refuted. 0 times theorem prover too weak. 47307 trivial. 0 not checked. [2022-09-30 08:23:28,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-30 08:23:28,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29249027] [2022-09-30 08:23:28,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29249027] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-30 08:23:28,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-30 08:23:28,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-30 08:23:28,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905756461] [2022-09-30 08:23:28,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-30 08:23:28,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-30 08:23:28,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-30 08:23:28,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-30 08:23:28,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-30 08:23:28,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:23:28,731 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-30 08:23:28,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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) [2022-09-30 08:23:28,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:23:28,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:23:28,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:23:28,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:23:28,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:23:28,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-09-30 08:23:28,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-09-30 08:23:28,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-09-30 08:23:28,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 242 states. [2022-09-30 08:23:28,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:23:28,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 154 states. [2022-09-30 08:23:28,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 190 states. [2022-09-30 08:23:28,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 518 states. [2022-09-30 08:23:28,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 238 states. [2022-09-30 08:23:28,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:23:32,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:23:32,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:23:32,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:23:32,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:23:32,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:23:32,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-30 08:23:32,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-09-30 08:23:32,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-09-30 08:23:32,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 242 states. [2022-09-30 08:23:32,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:23:32,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2022-09-30 08:23:32,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2022-09-30 08:23:32,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 518 states. [2022-09-30 08:23:32,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 238 states. [2022-09-30 08:23:32,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:23:32,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-09-30 08:23:32,248 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t2Err0ASSERT_VIOLATIONASSERT === [t2Err0ASSERT_VIOLATIONASSERT] === [2022-09-30 08:23:32,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-30 08:23:32,248 INFO L85 PathProgramCache]: Analyzing trace with hash -78357584, now seen corresponding path program 7 times [2022-09-30 08:23:32,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-30 08:23:32,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975268545] [2022-09-30 08:23:32,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 08:23:32,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-30 08:23:32,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 08:23:33,420 INFO L134 CoverageAnalysis]: Checked inductivity of 48035 backedges. 23124 proven. 0 refuted. 0 times theorem prover too weak. 24911 trivial. 0 not checked. [2022-09-30 08:23:33,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-30 08:23:33,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975268545] [2022-09-30 08:23:33,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975268545] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-30 08:23:33,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-30 08:23:33,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-30 08:23:33,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680372350] [2022-09-30 08:23:33,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-30 08:23:33,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-30 08:23:33,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-30 08:23:33,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-30 08:23:33,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-30 08:23:33,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:23:33,424 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-30 08:23:33,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 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) [2022-09-30 08:23:33,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:23:33,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:23:33,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:23:33,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:23:33,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:23:33,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-09-30 08:23:33,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-09-30 08:23:33,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-09-30 08:23:33,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 242 states. [2022-09-30 08:23:33,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:23:33,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 154 states. [2022-09-30 08:23:33,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 190 states. [2022-09-30 08:23:33,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 518 states. [2022-09-30 08:23:33,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 238 states. [2022-09-30 08:23:33,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:23:33,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:23:41,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:23:41,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:23:41,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:23:41,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:23:41,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:23:41,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-30 08:23:41,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-09-30 08:23:41,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-09-30 08:23:41,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 242 states. [2022-09-30 08:23:41,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:23:41,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 170 states. [2022-09-30 08:23:41,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2022-09-30 08:23:41,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 523 states. [2022-09-30 08:23:41,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 241 states. [2022-09-30 08:23:41,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:23:41,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-30 08:23:41,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-09-30 08:23:41,036 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t2Err0ASSERT_VIOLATIONASSERT === [t2Err0ASSERT_VIOLATIONASSERT] === [2022-09-30 08:23:41,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-30 08:23:41,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1228464370, now seen corresponding path program 8 times [2022-09-30 08:23:41,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-30 08:23:41,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260232155] [2022-09-30 08:23:41,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 08:23:41,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-30 08:23:41,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 08:23:44,031 INFO L134 CoverageAnalysis]: Checked inductivity of 48035 backedges. 5956 proven. 19158 refuted. 0 times theorem prover too weak. 22921 trivial. 0 not checked. [2022-09-30 08:23:44,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-30 08:23:44,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260232155] [2022-09-30 08:23:44,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260232155] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-30 08:23:44,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590050707] [2022-09-30 08:23:44,032 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-30 08:23:44,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-30 08:23:44,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 08:23:44,044 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-30 08:23:44,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-09-30 08:23:44,961 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-09-30 08:23:44,962 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-30 08:23:44,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 6311 conjuncts, 126 conjunts are in the unsatisfiable core [2022-09-30 08:23:45,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-30 08:23:51,535 INFO L134 CoverageAnalysis]: Checked inductivity of 48035 backedges. 5978 proven. 17468 refuted. 0 times theorem prover too weak. 24589 trivial. 0 not checked. [2022-09-30 08:23:51,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-30 08:23:54,554 INFO L134 CoverageAnalysis]: Checked inductivity of 48035 backedges. 5978 proven. 17468 refuted. 0 times theorem prover too weak. 24589 trivial. 0 not checked. [2022-09-30 08:23:54,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590050707] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-30 08:23:54,554 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-30 08:23:54,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21, 20] total 57 [2022-09-30 08:23:54,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448206382] [2022-09-30 08:23:54,555 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-30 08:23:54,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2022-09-30 08:23:54,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-30 08:23:54,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2022-09-30 08:23:54,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=315, Invalid=2877, Unknown=0, NotChecked=0, Total=3192 [2022-09-30 08:23:54,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:23:54,564 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-30 08:23:54,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 31.649122807017545) internal successors, (1804), 57 states have internal predecessors, (1804), 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) [2022-09-30 08:23:54,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:23:54,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:23:54,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:23:54,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:23:54,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:23:54,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-09-30 08:23:54,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-09-30 08:23:54,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-09-30 08:23:54,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 242 states. [2022-09-30 08:23:54,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:23:54,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 170 states. [2022-09-30 08:23:54,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 190 states. [2022-09-30 08:23:54,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 523 states. [2022-09-30 08:23:54,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 241 states. [2022-09-30 08:23:54,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:23:54,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-09-30 08:23:54,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:24:05,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:24:05,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:24:05,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:24:05,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:24:05,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:24:05,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-30 08:24:05,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-09-30 08:24:05,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-09-30 08:24:05,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 243 states. [2022-09-30 08:24:05,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:24:05,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 170 states. [2022-09-30 08:24:05,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2022-09-30 08:24:05,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 573 states. [2022-09-30 08:24:05,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 255 states. [2022-09-30 08:24:05,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:24:05,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-30 08:24:05,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-09-30 08:24:05,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-09-30 08:24:05,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-09-30 08:24:05,294 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t2Err0ASSERT_VIOLATIONASSERT === [t2Err0ASSERT_VIOLATIONASSERT] === [2022-09-30 08:24:05,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-30 08:24:05,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1697924266, now seen corresponding path program 9 times [2022-09-30 08:24:05,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-30 08:24:05,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91855239] [2022-09-30 08:24:05,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 08:24:05,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-30 08:24:05,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 08:24:08,228 INFO L134 CoverageAnalysis]: Checked inductivity of 55091 backedges. 11755 proven. 20254 refuted. 0 times theorem prover too weak. 23082 trivial. 0 not checked. [2022-09-30 08:24:08,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-30 08:24:08,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91855239] [2022-09-30 08:24:08,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91855239] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-30 08:24:08,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861594726] [2022-09-30 08:24:08,228 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-09-30 08:24:08,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-30 08:24:08,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 08:24:08,230 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-30 08:24:08,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-09-30 08:24:08,649 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-09-30 08:24:08,650 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-30 08:24:08,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 75 conjunts are in the unsatisfiable core [2022-09-30 08:24:08,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-30 08:24:09,021 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-09-30 08:24:09,021 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-09-30 08:24:09,075 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-09-30 08:24:09,175 INFO L356 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-09-30 08:24:09,175 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-09-30 08:24:09,209 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-09-30 08:24:21,764 INFO L134 CoverageAnalysis]: Checked inductivity of 55091 backedges. 898 proven. 1068 refuted. 0 times theorem prover too weak. 53125 trivial. 0 not checked. [2022-09-30 08:24:21,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-30 08:25:05,010 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-30 08:25:05,010 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 496 treesize of output 490 [2022-09-30 08:25:05,658 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-30 08:25:05,659 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 115 treesize of output 385 [2022-09-30 08:25:11,151 INFO L134 CoverageAnalysis]: Checked inductivity of 55091 backedges. 0 proven. 1966 refuted. 0 times theorem prover too weak. 53125 trivial. 0 not checked. [2022-09-30 08:25:11,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [861594726] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-30 08:25:11,152 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-30 08:25:11,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 30, 28] total 78 [2022-09-30 08:25:11,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432335761] [2022-09-30 08:25:11,153 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-30 08:25:11,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2022-09-30 08:25:11,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-30 08:25:11,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2022-09-30 08:25:11,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=280, Invalid=5726, Unknown=0, NotChecked=0, Total=6006 [2022-09-30 08:25:11,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:25:11,160 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-30 08:25:11,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 17.512820512820515) internal successors, (1366), 78 states have internal predecessors, (1366), 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) [2022-09-30 08:25:11,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:25:11,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:25:11,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:25:11,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:25:11,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:25:11,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-09-30 08:25:11,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-09-30 08:25:11,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-09-30 08:25:11,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 243 states. [2022-09-30 08:25:11,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:25:11,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 170 states. [2022-09-30 08:25:11,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 190 states. [2022-09-30 08:25:11,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 573 states. [2022-09-30 08:25:11,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 255 states. [2022-09-30 08:25:11,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:25:11,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-09-30 08:25:11,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-09-30 08:25:11,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:25:54,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:25:54,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:25:54,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:25:54,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:25:54,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:25:54,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-30 08:25:54,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-09-30 08:25:54,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-09-30 08:25:54,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 243 states. [2022-09-30 08:25:54,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:25:54,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 170 states. [2022-09-30 08:25:54,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2022-09-30 08:25:54,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 628 states. [2022-09-30 08:25:54,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 255 states. [2022-09-30 08:25:54,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:25:54,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-30 08:25:54,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-09-30 08:25:54,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 341 states. [2022-09-30 08:25:54,821 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-09-30 08:25:55,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-30 08:25:55,021 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t2Err0ASSERT_VIOLATIONASSERT === [t2Err0ASSERT_VIOLATIONASSERT] === [2022-09-30 08:25:55,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-30 08:25:55,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1456860740, now seen corresponding path program 10 times [2022-09-30 08:25:55,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-30 08:25:55,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431190058] [2022-09-30 08:25:55,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-30 08:25:55,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-30 08:25:55,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-30 08:25:58,852 INFO L134 CoverageAnalysis]: Checked inductivity of 70443 backedges. 24939 proven. 20395 refuted. 0 times theorem prover too weak. 25109 trivial. 0 not checked. [2022-09-30 08:25:58,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-30 08:25:58,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431190058] [2022-09-30 08:25:58,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431190058] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-30 08:25:58,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293674835] [2022-09-30 08:25:58,852 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-09-30 08:25:58,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-30 08:25:58,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-30 08:25:58,854 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-30 08:25:58,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-09-30 08:25:59,782 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-09-30 08:25:59,783 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-30 08:25:59,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 6661 conjuncts, 126 conjunts are in the unsatisfiable core [2022-09-30 08:25:59,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-30 08:26:07,004 INFO L134 CoverageAnalysis]: Checked inductivity of 70443 backedges. 24955 proven. 18665 refuted. 0 times theorem prover too weak. 26823 trivial. 0 not checked. [2022-09-30 08:26:07,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-30 08:26:10,393 INFO L134 CoverageAnalysis]: Checked inductivity of 70443 backedges. 24955 proven. 18665 refuted. 0 times theorem prover too weak. 26823 trivial. 0 not checked. [2022-09-30 08:26:10,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293674835] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-30 08:26:10,393 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-30 08:26:10,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 23, 23] total 65 [2022-09-30 08:26:10,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621038345] [2022-09-30 08:26:10,394 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-30 08:26:10,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2022-09-30 08:26:10,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-30 08:26:10,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2022-09-30 08:26:10,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=357, Invalid=3803, Unknown=0, NotChecked=0, Total=4160 [2022-09-30 08:26:10,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:26:10,401 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-30 08:26:10,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 30.984615384615385) internal successors, (2014), 65 states have internal predecessors, (2014), 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) [2022-09-30 08:26:10,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-30 08:26:10,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-30 08:26:10,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:26:10,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-30 08:26:10,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:26:10,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-09-30 08:26:10,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-09-30 08:26:10,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-09-30 08:26:10,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 243 states. [2022-09-30 08:26:10,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:26:10,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 170 states. [2022-09-30 08:26:10,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 190 states. [2022-09-30 08:26:10,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 628 states. [2022-09-30 08:26:10,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 255 states. [2022-09-30 08:26:10,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-30 08:26:10,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-09-30 08:26:10,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2022-09-30 08:26:10,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 341 states. [2022-09-30 08:26:10,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.