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/toy/errorLocalization/branching/emptyNestedIfs.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 10:43:00,684 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 10:43:00,686 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 10:43:00,697 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 10:43:00,698 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 10:43:00,699 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 10:43:00,700 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 10:43:00,702 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 10:43:00,704 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 10:43:00,705 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 10:43:00,706 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 10:43:00,706 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 10:43:00,706 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 10:43:00,707 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 10:43:00,709 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 10:43:00,710 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 10:43:00,711 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 10:43:00,712 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 10:43:00,713 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 10:43:00,715 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 10:43:00,717 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 10:43:00,718 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 10:43:00,720 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 10:43:00,720 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 10:43:00,723 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 10:43:00,723 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 10:43:00,724 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 10:43:00,725 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 10:43:00,725 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 10:43:00,726 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 10:43:00,726 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 10:43:00,727 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 10:43:00,728 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 10:43:00,729 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 10:43:00,730 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 10:43:00,730 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 10:43:00,731 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 10:43:00,731 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 10:43:00,732 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 10:43:00,733 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 10:43:00,733 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 10:43:00,760 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 10:43:00,773 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 10:43:00,777 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 10:43:00,778 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 10:43:00,779 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 10:43:00,780 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/errorLocalization/branching/emptyNestedIfs.bpl [2019-08-05 10:43:00,780 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/errorLocalization/branching/emptyNestedIfs.bpl' [2019-08-05 10:43:00,812 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 10:43:00,813 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 10:43:00,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 10:43:00,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 10:43:00,815 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 10:43:00,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "emptyNestedIfs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:43:00" (1/1) ... [2019-08-05 10:43:00,841 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "emptyNestedIfs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:43:00" (1/1) ... [2019-08-05 10:43:00,846 WARN L165 Inliner]: Program contained no entry procedure! [2019-08-05 10:43:00,847 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-08-05 10:43:00,847 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-08-05 10:43:00,849 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 10:43:00,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 10:43:00,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 10:43:00,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 10:43:00,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "emptyNestedIfs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:43:00" (1/1) ... [2019-08-05 10:43:00,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "emptyNestedIfs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:43:00" (1/1) ... [2019-08-05 10:43:00,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "emptyNestedIfs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:43:00" (1/1) ... [2019-08-05 10:43:00,863 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "emptyNestedIfs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:43:00" (1/1) ... [2019-08-05 10:43:00,865 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "emptyNestedIfs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:43:00" (1/1) ... [2019-08-05 10:43:00,868 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "emptyNestedIfs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:43:00" (1/1) ... [2019-08-05 10:43:00,869 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "emptyNestedIfs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:43:00" (1/1) ... [2019-08-05 10:43:00,870 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 10:43:00,870 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 10:43:00,870 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 10:43:00,871 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 10:43:00,872 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "emptyNestedIfs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:43:00" (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 10:43:00,941 INFO L124 BoogieDeclarations]: Specification and implementation of procedure foo given in one single declaration [2019-08-05 10:43:00,941 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2019-08-05 10:43:00,942 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2019-08-05 10:43:01,205 INFO L275 CfgBuilder]: Using library mode [2019-08-05 10:43:01,205 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 10:43:01,206 INFO L202 PluginConnector]: Adding new model emptyNestedIfs.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:43:01 BoogieIcfgContainer [2019-08-05 10:43:01,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 10:43:01,208 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 10:43:01,208 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 10:43:01,211 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 10:43:01,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "emptyNestedIfs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:43:00" (1/2) ... [2019-08-05 10:43:01,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4644b097 and model type emptyNestedIfs.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 10:43:01, skipping insertion in model container [2019-08-05 10:43:01,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "emptyNestedIfs.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:43:01" (2/2) ... [2019-08-05 10:43:01,215 INFO L109 eAbstractionObserver]: Analyzing ICFG emptyNestedIfs.bpl [2019-08-05 10:43:01,224 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 10:43:01,232 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 10:43:01,248 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 10:43:01,274 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 10:43:01,275 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 10:43:01,275 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 10:43:01,275 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 10:43:01,275 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 10:43:01,275 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 10:43:01,276 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 10:43:01,276 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 10:43:01,276 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 10:43:01,290 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2019-08-05 10:43:01,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-08-05 10:43:01,298 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:43:01,299 INFO L399 BasicCegarLoop]: trace histogram [1, 1] [2019-08-05 10:43:01,302 INFO L418 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:43:01,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:43:01,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1594, now seen corresponding path program 1 times [2019-08-05 10:43:01,362 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:43:01,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-08-05 10:43:01,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-08-05 10:43:01,416 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-08-05 10:43:01,433 INFO L202 PluginConnector]: Adding new model emptyNestedIfs.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 10:43:01 BoogieIcfgContainer [2019-08-05 10:43:01,434 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 10:43:01,437 INFO L168 Benchmark]: Toolchain (without parser) took 622.32 ms. Allocated memory is still 135.3 MB. Free memory was 112.8 MB in the beginning and 88.5 MB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2019-08-05 10:43:01,438 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 135.3 MB. Free memory is still 113.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 10:43:01,439 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.39 ms. Allocated memory is still 135.3 MB. Free memory was 112.8 MB in the beginning and 110.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-08-05 10:43:01,440 INFO L168 Benchmark]: Boogie Preprocessor took 19.89 ms. Allocated memory is still 135.3 MB. Free memory was 110.7 MB in the beginning and 109.8 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 7.1 GB. [2019-08-05 10:43:01,441 INFO L168 Benchmark]: RCFGBuilder took 336.03 ms. Allocated memory is still 135.3 MB. Free memory was 109.8 MB in the beginning and 100.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-08-05 10:43:01,442 INFO L168 Benchmark]: TraceAbstraction took 226.18 ms. Allocated memory is still 135.3 MB. Free memory was 99.7 MB in the beginning and 88.5 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2019-08-05 10:43:01,447 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 0.21 ms. Allocated memory is still 135.3 MB. Free memory is still 113.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 35.39 ms. Allocated memory is still 135.3 MB. Free memory was 112.8 MB in the beginning and 110.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 19.89 ms. Allocated memory is still 135.3 MB. Free memory was 110.7 MB in the beginning and 109.8 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 7.1 GB. * RCFGBuilder took 336.03 ms. Allocated memory is still 135.3 MB. Free memory was 109.8 MB in the beginning and 100.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 226.18 ms. Allocated memory is still 135.3 MB. Free memory was 99.7 MB in the beginning and 88.5 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 25]: assertion can be violated assertion can be violated We found a FailurePath: [L15] havoc x; [L16] havoc y; [L17] z := 1; [L20] COND FALSE !(x == 1) VAL [x=0, y=0, z=1] [L25] assert z != 1; VAL [x=0, y=0, z=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 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=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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 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...