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/regression/open/int/recursive-Collatz.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 11:09:29,516 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 11:09:29,518 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 11:09:29,530 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 11:09:29,531 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 11:09:29,532 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 11:09:29,533 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 11:09:29,535 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 11:09:29,537 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 11:09:29,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 11:09:29,539 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 11:09:29,539 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 11:09:29,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 11:09:29,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 11:09:29,544 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 11:09:29,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 11:09:29,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 11:09:29,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 11:09:29,551 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 11:09:29,555 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 11:09:29,560 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 11:09:29,561 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 11:09:29,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 11:09:29,564 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 11:09:29,566 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 11:09:29,567 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 11:09:29,567 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 11:09:29,568 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 11:09:29,568 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 11:09:29,572 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 11:09:29,572 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 11:09:29,573 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 11:09:29,574 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 11:09:29,576 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 11:09:29,578 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 11:09:29,578 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 11:09:29,579 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 11:09:29,580 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 11:09:29,580 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 11:09:29,581 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 11:09:29,582 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 11:09:29,634 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 11:09:29,655 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 11:09:29,659 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 11:09:29,661 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 11:09:29,662 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 11:09:29,663 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/abstractInterpretation/regression/open/int/recursive-Collatz.bpl [2019-08-05 11:09:29,663 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/abstractInterpretation/regression/open/int/recursive-Collatz.bpl' [2019-08-05 11:09:29,700 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 11:09:29,701 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 11:09:29,702 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 11:09:29,702 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 11:09:29,702 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 11:09:29,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "recursive-Collatz.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:09:29" (1/1) ... [2019-08-05 11:09:29,732 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "recursive-Collatz.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:09:29" (1/1) ... [2019-08-05 11:09:29,740 WARN L165 Inliner]: Program contained no entry procedure! [2019-08-05 11:09:29,740 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-08-05 11:09:29,740 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-08-05 11:09:29,742 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 11:09:29,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 11:09:29,744 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 11:09:29,744 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 11:09:29,756 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "recursive-Collatz.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:09:29" (1/1) ... [2019-08-05 11:09:29,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "recursive-Collatz.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:09:29" (1/1) ... [2019-08-05 11:09:29,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "recursive-Collatz.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:09:29" (1/1) ... [2019-08-05 11:09:29,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "recursive-Collatz.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:09:29" (1/1) ... [2019-08-05 11:09:29,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "recursive-Collatz.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:09:29" (1/1) ... [2019-08-05 11:09:29,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "recursive-Collatz.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:09:29" (1/1) ... [2019-08-05 11:09:29,765 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "recursive-Collatz.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:09:29" (1/1) ... [2019-08-05 11:09:29,766 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 11:09:29,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 11:09:29,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 11:09:29,767 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 11:09:29,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "recursive-Collatz.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:09:29" (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 11:09:29,837 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Collatz given in one single declaration [2019-08-05 11:09:29,837 INFO L130 BoogieDeclarations]: Found specification of procedure Collatz [2019-08-05 11:09:29,837 INFO L138 BoogieDeclarations]: Found implementation of procedure Collatz [2019-08-05 11:09:29,991 INFO L275 CfgBuilder]: Using library mode [2019-08-05 11:09:29,991 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 11:09:29,992 INFO L202 PluginConnector]: Adding new model recursive-Collatz.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:09:29 BoogieIcfgContainer [2019-08-05 11:09:29,992 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 11:09:29,994 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 11:09:29,994 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 11:09:29,997 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 11:09:29,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "recursive-Collatz.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:09:29" (1/2) ... [2019-08-05 11:09:29,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6967655c and model type recursive-Collatz.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 11:09:29, skipping insertion in model container [2019-08-05 11:09:29,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "recursive-Collatz.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:09:29" (2/2) ... [2019-08-05 11:09:30,001 INFO L109 eAbstractionObserver]: Analyzing ICFG recursive-Collatz.bpl [2019-08-05 11:09:30,011 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 11:09:30,018 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 11:09:30,035 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 11:09:30,067 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 11:09:30,068 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 11:09:30,068 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 11:09:30,068 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 11:09:30,068 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 11:09:30,068 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 11:09:30,068 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 11:09:30,069 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 11:09:30,069 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 11:09:30,084 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-08-05 11:09:30,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-08-05 11:09:30,099 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:09:30,100 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-08-05 11:09:30,102 INFO L418 AbstractCegarLoop]: === Iteration 1 === [CollatzErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:09:30,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:09:30,108 INFO L82 PathProgramCache]: Analyzing trace with hash 296055347, now seen corresponding path program 1 times [2019-08-05 11:09:30,148 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:09:30,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-08-05 11:09:30,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-08-05 11:09:30,219 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-08-05 11:09:30,238 INFO L202 PluginConnector]: Adding new model recursive-Collatz.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 11:09:30 BoogieIcfgContainer [2019-08-05 11:09:30,238 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 11:09:30,241 INFO L168 Benchmark]: Toolchain (without parser) took 539.04 ms. Allocated memory is still 134.2 MB. Free memory was 109.4 MB in the beginning and 85.7 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. [2019-08-05 11:09:30,242 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 134.2 MB. Free memory is still 110.2 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 11:09:30,244 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.15 ms. Allocated memory is still 134.2 MB. Free memory was 109.4 MB in the beginning and 107.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-08-05 11:09:30,245 INFO L168 Benchmark]: Boogie Preprocessor took 23.29 ms. Allocated memory is still 134.2 MB. Free memory was 107.2 MB in the beginning and 106.4 MB in the end (delta: 872.4 kB). Peak memory consumption was 872.4 kB. Max. memory is 7.1 GB. [2019-08-05 11:09:30,247 INFO L168 Benchmark]: RCFGBuilder took 225.63 ms. Allocated memory is still 134.2 MB. Free memory was 106.4 MB in the beginning and 97.6 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 7.1 GB. [2019-08-05 11:09:30,248 INFO L168 Benchmark]: TraceAbstraction took 244.47 ms. Allocated memory is still 134.2 MB. Free memory was 97.2 MB in the beginning and 85.7 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2019-08-05 11:09:30,256 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 0.22 ms. Allocated memory is still 134.2 MB. Free memory is still 110.2 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 41.15 ms. Allocated memory is still 134.2 MB. Free memory was 109.4 MB in the beginning and 107.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 23.29 ms. Allocated memory is still 134.2 MB. Free memory was 107.2 MB in the beginning and 106.4 MB in the end (delta: 872.4 kB). Peak memory consumption was 872.4 kB. Max. memory is 7.1 GB. * RCFGBuilder took 225.63 ms. Allocated memory is still 134.2 MB. Free memory was 106.4 MB in the beginning and 97.6 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 244.47 ms. Allocated memory is still 134.2 MB. Free memory was 97.2 MB in the beginning and 85.7 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 24]: assertion can be violated assertion can be violated We found a FailurePath: [L14] COND FALSE !(x == 1) VAL [x=2] [L18] COND TRUE x % 2 == 0 VAL [x=2] [L19] CALL call res := Collatz(x / 2); VAL [x=1] [L14] COND TRUE x == 1 [L15] res := 1; VAL [res=1, x=1] [L19] RET call res := Collatz(x / 2); VAL [res=1, x=2] [L24] assert 2 / 2 == 0; VAL [res=1, x=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...