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/all/expr-iff-2.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 11:13:49,764 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 11:13:49,766 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 11:13:49,777 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 11:13:49,778 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 11:13:49,779 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 11:13:49,780 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 11:13:49,782 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 11:13:49,784 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 11:13:49,785 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 11:13:49,786 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 11:13:49,787 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 11:13:49,787 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 11:13:49,788 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 11:13:49,789 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 11:13:49,790 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 11:13:49,791 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 11:13:49,792 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 11:13:49,794 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 11:13:49,796 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 11:13:49,798 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 11:13:49,799 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 11:13:49,801 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 11:13:49,801 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 11:13:49,804 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 11:13:49,804 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 11:13:49,805 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 11:13:49,806 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 11:13:49,806 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 11:13:49,807 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 11:13:49,808 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 11:13:49,809 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 11:13:49,809 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 11:13:49,810 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 11:13:49,811 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 11:13:49,812 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 11:13:49,812 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 11:13:49,813 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 11:13:49,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 11:13:49,814 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 11:13:49,815 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 11:13:49,845 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 11:13:49,858 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 11:13:49,863 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 11:13:49,864 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 11:13:49,865 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 11:13:49,866 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/abstractInterpretation/regression/all/expr-iff-2.bpl [2019-08-05 11:13:49,867 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/abstractInterpretation/regression/all/expr-iff-2.bpl' [2019-08-05 11:13:49,898 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 11:13:49,899 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 11:13:49,900 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 11:13:49,900 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 11:13:49,900 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 11:13:49,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "expr-iff-2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:13:49" (1/1) ... [2019-08-05 11:13:49,925 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "expr-iff-2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:13:49" (1/1) ... [2019-08-05 11:13:49,935 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 11:13:49,936 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 11:13:49,936 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 11:13:49,936 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 11:13:49,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "expr-iff-2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:13:49" (1/1) ... [2019-08-05 11:13:49,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "expr-iff-2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:13:49" (1/1) ... [2019-08-05 11:13:49,948 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "expr-iff-2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:13:49" (1/1) ... [2019-08-05 11:13:49,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "expr-iff-2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:13:49" (1/1) ... [2019-08-05 11:13:49,951 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "expr-iff-2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:13:49" (1/1) ... [2019-08-05 11:13:49,952 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "expr-iff-2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:13:49" (1/1) ... [2019-08-05 11:13:49,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "expr-iff-2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:13:49" (1/1) ... [2019-08-05 11:13:49,954 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 11:13:49,955 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 11:13:49,955 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 11:13:49,955 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 11:13:49,956 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "expr-iff-2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:13:49" (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 11:13:50,027 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2019-08-05 11:13:50,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 11:13:50,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 11:13:50,256 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 11:13:50,256 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 11:13:50,259 INFO L202 PluginConnector]: Adding new model expr-iff-2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:13:50 BoogieIcfgContainer [2019-08-05 11:13:50,259 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 11:13:50,261 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 11:13:50,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 11:13:50,270 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 11:13:50,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "expr-iff-2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:13:49" (1/2) ... [2019-08-05 11:13:50,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd74ed1 and model type expr-iff-2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 11:13:50, skipping insertion in model container [2019-08-05 11:13:50,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "expr-iff-2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:13:50" (2/2) ... [2019-08-05 11:13:50,274 INFO L109 eAbstractionObserver]: Analyzing ICFG expr-iff-2.bpl [2019-08-05 11:13:50,283 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 11:13:50,290 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-08-05 11:13:50,306 INFO L252 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-08-05 11:13:50,332 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 11:13:50,332 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 11:13:50,333 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 11:13:50,333 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 11:13:50,333 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 11:13:50,333 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 11:13:50,333 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 11:13:50,333 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 11:13:50,334 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 11:13:50,348 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-08-05 11:13:50,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-08-05 11:13:50,356 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:13:50,357 INFO L399 BasicCegarLoop]: trace histogram [1, 1] [2019-08-05 11:13:50,359 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:13:50,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:13:50,365 INFO L82 PathProgramCache]: Analyzing trace with hash 962, now seen corresponding path program 1 times [2019-08-05 11:13:50,412 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:13:50,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:13:50,436 INFO L256 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 1 conjunts are in the unsatisfiable core [2019-08-05 11:13:50,439 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:13:50,450 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 11:13:50,453 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:13:50,453 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-08-05 11:13:50,456 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-08-05 11:13:50,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-08-05 11:13:50,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-08-05 11:13:50,470 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 2 states. [2019-08-05 11:13:50,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:13:50,484 INFO L93 Difference]: Finished difference Result 5 states and 4 transitions. [2019-08-05 11:13:50,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-08-05 11:13:50,485 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 2 [2019-08-05 11:13:50,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:13:50,494 INFO L225 Difference]: With dead ends: 5 [2019-08-05 11:13:50,494 INFO L226 Difference]: Without dead ends: 5 [2019-08-05 11:13:50,497 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 11:13:50,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2019-08-05 11:13:50,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2019-08-05 11:13:50,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-08-05 11:13:50,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4 transitions. [2019-08-05 11:13:50,530 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 4 transitions. Word has length 2 [2019-08-05 11:13:50,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:13:50,530 INFO L475 AbstractCegarLoop]: Abstraction has 5 states and 4 transitions. [2019-08-05 11:13:50,531 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-08-05 11:13:50,531 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 4 transitions. [2019-08-05 11:13:50,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-05 11:13:50,531 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:13:50,532 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-08-05 11:13:50,532 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:13:50,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:13:50,533 INFO L82 PathProgramCache]: Analyzing trace with hash 925572, now seen corresponding path program 1 times [2019-08-05 11:13:50,534 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:13:50,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-08-05 11:13:50,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-08-05 11:13:50,562 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-08-05 11:13:50,584 INFO L202 PluginConnector]: Adding new model expr-iff-2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 11:13:50 BoogieIcfgContainer [2019-08-05 11:13:50,584 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 11:13:50,587 INFO L168 Benchmark]: Toolchain (without parser) took 686.88 ms. Allocated memory is still 135.3 MB. Free memory was 111.5 MB in the beginning and 80.6 MB in the end (delta: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 7.1 GB. [2019-08-05 11:13:50,588 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 135.3 MB. Free memory is still 112.4 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 11:13:50,590 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.55 ms. Allocated memory is still 135.3 MB. Free memory was 111.5 MB in the beginning and 109.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-08-05 11:13:50,591 INFO L168 Benchmark]: Boogie Preprocessor took 18.27 ms. Allocated memory is still 135.3 MB. Free memory was 109.7 MB in the beginning and 108.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-08-05 11:13:50,592 INFO L168 Benchmark]: RCFGBuilder took 304.61 ms. Allocated memory is still 135.3 MB. Free memory was 108.4 MB in the beginning and 99.4 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-08-05 11:13:50,593 INFO L168 Benchmark]: TraceAbstraction took 323.54 ms. Allocated memory is still 135.3 MB. Free memory was 99.4 MB in the beginning and 80.6 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. [2019-08-05 11:13:50,599 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 135.3 MB. Free memory is still 112.4 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 35.55 ms. Allocated memory is still 135.3 MB. Free memory was 111.5 MB in the beginning and 109.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 18.27 ms. Allocated memory is still 135.3 MB. Free memory was 109.7 MB in the beginning and 108.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 304.61 ms. Allocated memory is still 135.3 MB. Free memory was 108.4 MB in the beginning and 99.4 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 323.54 ms. Allocated memory is still 135.3 MB. Free memory was 99.4 MB in the beginning and 80.6 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 15]: assertion can be violated assertion can be violated We found a FailurePath: [L8] x := 0; VAL [x=0] [L9] assert true; [L11] assume y >= 0 && y <= 10; VAL [x=0, y=0] [L12] assert true; [L14] assume b == (x == 0 <==> y == 5); VAL [b=false, x=0, y=0] [L15] assert false; VAL [b=false, x=0, y=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 3 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4 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=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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 1 ConstructedInterpolants, 0 QuantifiedInterpolants, 1 SizeOfPredicates, 0 NumberOfNonLiveVariables, 5 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 incorrect! Received shutdown request...