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-implies.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 11:12:45,124 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 11:12:45,126 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 11:12:45,138 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 11:12:45,138 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 11:12:45,139 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 11:12:45,140 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 11:12:45,142 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 11:12:45,144 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 11:12:45,145 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 11:12:45,146 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 11:12:45,147 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 11:12:45,147 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 11:12:45,148 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 11:12:45,149 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 11:12:45,150 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 11:12:45,151 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 11:12:45,152 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 11:12:45,154 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 11:12:45,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 11:12:45,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 11:12:45,159 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 11:12:45,160 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 11:12:45,161 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 11:12:45,163 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 11:12:45,164 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 11:12:45,164 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 11:12:45,165 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 11:12:45,165 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 11:12:45,166 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 11:12:45,167 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 11:12:45,167 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 11:12:45,168 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 11:12:45,169 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 11:12:45,170 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 11:12:45,170 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 11:12:45,171 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 11:12:45,171 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 11:12:45,171 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 11:12:45,172 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 11:12:45,173 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 11:12:45,200 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 11:12:45,213 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 11:12:45,216 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 11:12:45,218 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 11:12:45,218 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 11:12:45,219 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/abstractInterpretation/regression/all/expr-implies.bpl [2019-08-05 11:12:45,220 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/abstractInterpretation/regression/all/expr-implies.bpl' [2019-08-05 11:12:45,250 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 11:12:45,252 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 11:12:45,252 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 11:12:45,253 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 11:12:45,253 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 11:12:45,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "expr-implies.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:12:45" (1/1) ... [2019-08-05 11:12:45,278 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "expr-implies.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:12:45" (1/1) ... [2019-08-05 11:12:45,286 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 11:12:45,287 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 11:12:45,287 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 11:12:45,287 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 11:12:45,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "expr-implies.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:12:45" (1/1) ... [2019-08-05 11:12:45,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "expr-implies.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:12:45" (1/1) ... [2019-08-05 11:12:45,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "expr-implies.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:12:45" (1/1) ... [2019-08-05 11:12:45,299 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "expr-implies.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:12:45" (1/1) ... [2019-08-05 11:12:45,301 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "expr-implies.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:12:45" (1/1) ... [2019-08-05 11:12:45,302 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "expr-implies.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:12:45" (1/1) ... [2019-08-05 11:12:45,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "expr-implies.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:12:45" (1/1) ... [2019-08-05 11:12:45,304 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 11:12:45,305 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 11:12:45,305 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 11:12:45,305 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 11:12:45,306 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "expr-implies.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:12:45" (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 11:12:45,370 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2019-08-05 11:12:45,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 11:12:45,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 11:12:45,546 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 11:12:45,546 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 11:12:45,547 INFO L202 PluginConnector]: Adding new model expr-implies.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:12:45 BoogieIcfgContainer [2019-08-05 11:12:45,547 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 11:12:45,549 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 11:12:45,549 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 11:12:45,552 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 11:12:45,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "expr-implies.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:12:45" (1/2) ... [2019-08-05 11:12:45,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d4ffaa4 and model type expr-implies.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 11:12:45, skipping insertion in model container [2019-08-05 11:12:45,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "expr-implies.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:12:45" (2/2) ... [2019-08-05 11:12:45,555 INFO L109 eAbstractionObserver]: Analyzing ICFG expr-implies.bpl [2019-08-05 11:12:45,564 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 11:12:45,572 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-08-05 11:12:45,588 INFO L252 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-08-05 11:12:45,614 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 11:12:45,615 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 11:12:45,615 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 11:12:45,616 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 11:12:45,616 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 11:12:45,616 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 11:12:45,616 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 11:12:45,616 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 11:12:45,617 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 11:12:45,630 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-08-05 11:12:45,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-08-05 11:12:45,639 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:12:45,640 INFO L399 BasicCegarLoop]: trace histogram [1, 1] [2019-08-05 11:12:45,642 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:12:45,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:12:45,648 INFO L82 PathProgramCache]: Analyzing trace with hash 962, now seen corresponding path program 1 times [2019-08-05 11:12:45,700 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:12:45,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:12:45,726 INFO L256 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 1 conjunts are in the unsatisfiable core [2019-08-05 11:12:45,730 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:12:45,740 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 11:12:45,742 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:12:45,742 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-08-05 11:12:45,745 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-08-05 11:12:45,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-08-05 11:12:45,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-08-05 11:12:45,759 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 2 states. [2019-08-05 11:12:45,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:12:45,772 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-08-05 11:12:45,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-08-05 11:12:45,774 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 2 [2019-08-05 11:12:45,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:12:45,785 INFO L225 Difference]: With dead ends: 6 [2019-08-05 11:12:45,785 INFO L226 Difference]: Without dead ends: 6 [2019-08-05 11:12:45,787 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 11:12:45,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2019-08-05 11:12:45,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2019-08-05 11:12:45,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-08-05 11:12:45,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5 transitions. [2019-08-05 11:12:45,817 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 5 transitions. Word has length 2 [2019-08-05 11:12:45,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:12:45,817 INFO L475 AbstractCegarLoop]: Abstraction has 6 states and 5 transitions. [2019-08-05 11:12:45,817 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-08-05 11:12:45,818 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2019-08-05 11:12:45,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-08-05 11:12:45,818 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:12:45,818 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-08-05 11:12:45,819 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:12:45,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:12:45,820 INFO L82 PathProgramCache]: Analyzing trace with hash 28692770, now seen corresponding path program 1 times [2019-08-05 11:12:45,821 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:12:45,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-08-05 11:12:45,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-08-05 11:12:45,846 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-08-05 11:12:45,869 INFO L202 PluginConnector]: Adding new model expr-implies.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 11:12:45 BoogieIcfgContainer [2019-08-05 11:12:45,869 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 11:12:45,872 INFO L168 Benchmark]: Toolchain (without parser) took 619.61 ms. Allocated memory is still 140.5 MB. Free memory was 109.1 MB in the beginning and 78.0 MB in the end (delta: 31.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 7.1 GB. [2019-08-05 11:12:45,874 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 140.5 MB. Free memory was 110.1 MB in the beginning and 109.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-05 11:12:45,875 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.86 ms. Allocated memory is still 140.5 MB. Free memory was 108.9 MB in the beginning and 107.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. [2019-08-05 11:12:45,876 INFO L168 Benchmark]: Boogie Preprocessor took 17.71 ms. Allocated memory is still 140.5 MB. Free memory was 107.3 MB in the beginning and 106.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. [2019-08-05 11:12:45,878 INFO L168 Benchmark]: RCFGBuilder took 242.72 ms. Allocated memory is still 140.5 MB. Free memory was 106.0 MB in the beginning and 97.0 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-08-05 11:12:45,879 INFO L168 Benchmark]: TraceAbstraction took 320.88 ms. Allocated memory is still 140.5 MB. Free memory was 96.7 MB in the beginning and 78.2 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. [2019-08-05 11:12:45,885 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 140.5 MB. Free memory was 110.1 MB in the beginning and 109.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 33.86 ms. Allocated memory is still 140.5 MB. Free memory was 108.9 MB in the beginning and 107.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 17.71 ms. Allocated memory is still 140.5 MB. Free memory was 107.3 MB in the beginning and 106.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 242.72 ms. Allocated memory is still 140.5 MB. Free memory was 106.0 MB in the beginning and 97.0 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 320.88 ms. Allocated memory is still 140.5 MB. Free memory was 96.7 MB in the beginning and 78.2 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 18]: 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] b := false; VAL [b=false, x=0, y=0] [L15] assert true; [L17] assume b ==> y == 20; VAL [b=false, x=0, y=0] [L18] assert false; VAL [b=false, x=0, y=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 4 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5 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=10occurred 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, 7 NumberOfCodeBlocks, 7 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...