java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/programs/abstractInterpretation/unclassified/congruence.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 11:15:59,830 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 11:15:59,832 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 11:15:59,843 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 11:15:59,844 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 11:15:59,845 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 11:15:59,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 11:15:59,848 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 11:15:59,850 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 11:15:59,850 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 11:15:59,851 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 11:15:59,852 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 11:15:59,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 11:15:59,853 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 11:15:59,854 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 11:15:59,855 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 11:15:59,856 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 11:15:59,857 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 11:15:59,859 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 11:15:59,861 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 11:15:59,863 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 11:15:59,864 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 11:15:59,865 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 11:15:59,866 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 11:15:59,868 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 11:15:59,868 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 11:15:59,869 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 11:15:59,870 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 11:15:59,870 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 11:15:59,871 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 11:15:59,871 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 11:15:59,872 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 11:15:59,873 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 11:15:59,874 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 11:15:59,875 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 11:15:59,875 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 11:15:59,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 11:15:59,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 11:15:59,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 11:15:59,877 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 11:15:59,877 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 11:15:59,915 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 11:15:59,928 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 11:15:59,933 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 11:15:59,934 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 11:15:59,935 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 11:15:59,936 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/abstractInterpretation/unclassified/congruence.bpl [2019-08-05 11:15:59,936 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/abstractInterpretation/unclassified/congruence.bpl' [2019-08-05 11:15:59,966 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 11:15:59,968 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 11:15:59,968 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 11:15:59,968 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 11:15:59,969 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 11:15:59,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "congruence.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:15:59" (1/1) ... [2019-08-05 11:15:59,991 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "congruence.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:15:59" (1/1) ... [2019-08-05 11:15:59,997 WARN L165 Inliner]: Program contained no entry procedure! [2019-08-05 11:15:59,997 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-08-05 11:15:59,997 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-08-05 11:15:59,999 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 11:16:00,000 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 11:16:00,000 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 11:16:00,000 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 11:16:00,011 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "congruence.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:15:59" (1/1) ... [2019-08-05 11:16:00,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "congruence.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:15:59" (1/1) ... [2019-08-05 11:16:00,011 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "congruence.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:15:59" (1/1) ... [2019-08-05 11:16:00,012 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "congruence.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:15:59" (1/1) ... [2019-08-05 11:16:00,014 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "congruence.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:15:59" (1/1) ... [2019-08-05 11:16:00,015 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "congruence.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:15:59" (1/1) ... [2019-08-05 11:16:00,016 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "congruence.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:15:59" (1/1) ... [2019-08-05 11:16:00,017 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 11:16:00,018 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 11:16:00,018 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 11:16:00,018 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 11:16:00,019 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "congruence.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:15:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-08-05 11:16:00,079 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-08-05 11:16:00,079 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-05 11:16:00,080 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-05 11:16:00,267 INFO L275 CfgBuilder]: Using library mode [2019-08-05 11:16:00,268 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 11:16:00,269 INFO L202 PluginConnector]: Adding new model congruence.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:16:00 BoogieIcfgContainer [2019-08-05 11:16:00,270 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 11:16:00,271 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 11:16:00,272 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 11:16:00,279 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 11:16:00,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "congruence.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:15:59" (1/2) ... [2019-08-05 11:16:00,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b5bcd2c and model type congruence.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 11:16:00, skipping insertion in model container [2019-08-05 11:16:00,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "congruence.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:16:00" (2/2) ... [2019-08-05 11:16:00,283 INFO L109 eAbstractionObserver]: Analyzing ICFG congruence.bpl [2019-08-05 11:16:00,293 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 11:16:00,302 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 11:16:00,321 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 11:16:00,353 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 11:16:00,354 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 11:16:00,355 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 11:16:00,355 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 11:16:00,355 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 11:16:00,356 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 11:16:00,356 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 11:16:00,356 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 11:16:00,357 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 11:16:00,373 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2019-08-05 11:16:00,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-08-05 11:16:00,386 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:16:00,387 INFO L399 BasicCegarLoop]: trace histogram [1, 1] [2019-08-05 11:16:00,395 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:16:00,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:16:00,404 INFO L82 PathProgramCache]: Analyzing trace with hash 962, now seen corresponding path program 1 times [2019-08-05 11:16:00,452 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:16:00,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:16:00,482 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 1 conjunts are in the unsatisfiable core [2019-08-05 11:16:00,485 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:16:00,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 11:16:00,497 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:16:00,497 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-08-05 11:16:00,500 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-08-05 11:16:00,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-08-05 11:16:00,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-08-05 11:16:00,515 INFO L87 Difference]: Start difference. First operand 4 states. Second operand 2 states. [2019-08-05 11:16:00,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:16:00,527 INFO L93 Difference]: Finished difference Result 3 states and 2 transitions. [2019-08-05 11:16:00,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-08-05 11:16:00,529 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 2 [2019-08-05 11:16:00,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:16:00,536 INFO L225 Difference]: With dead ends: 3 [2019-08-05 11:16:00,536 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 11:16:00,538 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-08-05 11:16:00,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 11:16:00,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 11:16:00,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 11:16:00,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 11:16:00,561 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2 [2019-08-05 11:16:00,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:16:00,561 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 11:16:00,561 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-08-05 11:16:00,562 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 11:16:00,562 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 11:16:00,567 INFO L202 PluginConnector]: Adding new model congruence.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 11:16:00 BoogieIcfgContainer [2019-08-05 11:16:00,567 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 11:16:00,570 INFO L168 Benchmark]: Toolchain (without parser) took 601.55 ms. Allocated memory is still 131.6 MB. Free memory was 109.2 MB in the beginning and 81.1 MB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. [2019-08-05 11:16:00,571 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 131.6 MB. Free memory is still 110.0 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 11:16:00,572 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.16 ms. Allocated memory is still 131.6 MB. Free memory was 109.2 MB in the beginning and 107.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-08-05 11:16:00,574 INFO L168 Benchmark]: Boogie Preprocessor took 17.46 ms. Allocated memory is still 131.6 MB. Free memory was 107.5 MB in the beginning and 106.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-08-05 11:16:00,575 INFO L168 Benchmark]: RCFGBuilder took 251.99 ms. Allocated memory is still 131.6 MB. Free memory was 106.2 MB in the beginning and 97.3 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. [2019-08-05 11:16:00,576 INFO L168 Benchmark]: TraceAbstraction took 296.11 ms. Allocated memory is still 131.6 MB. Free memory was 97.3 MB in the beginning and 81.1 MB in the end (delta: 16.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. [2019-08-05 11:16:00,580 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 131.6 MB. Free memory is still 110.0 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 31.16 ms. Allocated memory is still 131.6 MB. Free memory was 109.2 MB in the beginning and 107.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 17.46 ms. Allocated memory is still 131.6 MB. Free memory was 107.5 MB in the beginning and 106.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 251.99 ms. Allocated memory is still 131.6 MB. Free memory was 106.2 MB in the beginning and 97.3 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 296.11 ms. Allocated memory is still 131.6 MB. Free memory was 97.3 MB in the beginning and 81.1 MB in the end (delta: 16.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 locations, 1 error locations. SAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 1 ConstructedInterpolants, 0 QuantifiedInterpolants, 1 SizeOfPredicates, 0 NumberOfNonLiveVariables, 8 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...