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/LoopFree-incorrect.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 10:43:40,250 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 10:43:40,253 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 10:43:40,264 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 10:43:40,265 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 10:43:40,266 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 10:43:40,267 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 10:43:40,269 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 10:43:40,271 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 10:43:40,272 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 10:43:40,273 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 10:43:40,273 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 10:43:40,274 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 10:43:40,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 10:43:40,275 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 10:43:40,277 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 10:43:40,278 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 10:43:40,279 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 10:43:40,280 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 10:43:40,283 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 10:43:40,284 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 10:43:40,286 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 10:43:40,287 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 10:43:40,288 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 10:43:40,291 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 10:43:40,291 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 10:43:40,291 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 10:43:40,292 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 10:43:40,293 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 10:43:40,294 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 10:43:40,294 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 10:43:40,295 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 10:43:40,295 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 10:43:40,296 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 10:43:40,297 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 10:43:40,298 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 10:43:40,298 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 10:43:40,299 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 10:43:40,299 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 10:43:40,300 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 10:43:40,300 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 10:43:40,334 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 10:43:40,350 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 10:43:40,356 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 10:43:40,358 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 10:43:40,359 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 10:43:40,360 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/LoopFree-incorrect.bpl [2019-08-05 10:43:40,360 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/LoopFree-incorrect.bpl' [2019-08-05 10:43:40,396 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 10:43:40,397 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 10:43:40,398 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 10:43:40,398 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 10:43:40,399 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 10:43:40,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "LoopFree-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:43:40" (1/1) ... [2019-08-05 10:43:40,426 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "LoopFree-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:43:40" (1/1) ... [2019-08-05 10:43:40,432 WARN L165 Inliner]: Program contained no entry procedure! [2019-08-05 10:43:40,432 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-08-05 10:43:40,432 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-08-05 10:43:40,434 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 10:43:40,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 10:43:40,435 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 10:43:40,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 10:43:40,449 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "LoopFree-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:43:40" (1/1) ... [2019-08-05 10:43:40,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "LoopFree-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:43:40" (1/1) ... [2019-08-05 10:43:40,450 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "LoopFree-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:43:40" (1/1) ... [2019-08-05 10:43:40,450 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "LoopFree-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:43:40" (1/1) ... [2019-08-05 10:43:40,454 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "LoopFree-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:43:40" (1/1) ... [2019-08-05 10:43:40,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "LoopFree-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:43:40" (1/1) ... [2019-08-05 10:43:40,459 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "LoopFree-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:43:40" (1/1) ... [2019-08-05 10:43:40,461 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 10:43:40,462 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 10:43:40,462 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 10:43:40,462 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 10:43:40,464 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "LoopFree-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:43:40" (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 10:43:40,534 INFO L124 BoogieDeclarations]: Specification and implementation of procedure loopFreeEx given in one single declaration [2019-08-05 10:43:40,535 INFO L130 BoogieDeclarations]: Found specification of procedure loopFreeEx [2019-08-05 10:43:40,535 INFO L138 BoogieDeclarations]: Found implementation of procedure loopFreeEx [2019-08-05 10:43:40,832 INFO L275 CfgBuilder]: Using library mode [2019-08-05 10:43:40,833 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 10:43:40,834 INFO L202 PluginConnector]: Adding new model LoopFree-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:43:40 BoogieIcfgContainer [2019-08-05 10:43:40,834 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 10:43:40,836 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 10:43:40,836 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 10:43:40,839 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 10:43:40,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "LoopFree-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:43:40" (1/2) ... [2019-08-05 10:43:40,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c0805b7 and model type LoopFree-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 10:43:40, skipping insertion in model container [2019-08-05 10:43:40,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "LoopFree-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:43:40" (2/2) ... [2019-08-05 10:43:40,843 INFO L109 eAbstractionObserver]: Analyzing ICFG LoopFree-incorrect.bpl [2019-08-05 10:43:40,852 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 10:43:40,860 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-08-05 10:43:40,876 INFO L252 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-08-05 10:43:40,902 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 10:43:40,903 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 10:43:40,903 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 10:43:40,904 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 10:43:40,904 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 10:43:40,904 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 10:43:40,904 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 10:43:40,904 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 10:43:40,904 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 10:43:40,922 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-08-05 10:43:40,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-05 10:43:40,943 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:43:40,946 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-08-05 10:43:40,952 INFO L418 AbstractCegarLoop]: === Iteration 1 === [loopFreeExErr2ASSERT_VIOLATIONASSERT, loopFreeExErr0ASSERT_VIOLATIONASSERT, loopFreeExErr1ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:43:40,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:43:40,960 INFO L82 PathProgramCache]: Analyzing trace with hash 927166, now seen corresponding path program 1 times [2019-08-05 10:43:41,009 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:43:41,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:43:41,043 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 3 conjunts are in the unsatisfiable core [2019-08-05 10:43:41,047 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:43:41,147 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:43:41,195 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 10:43:41,197 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 10:43:41,198 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-05 10:43:41,202 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 10:43:41,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 10:43:41,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 10:43:41,218 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 3 states. [2019-08-05 10:43:41,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:43:41,310 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2019-08-05 10:43:41,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 10:43:41,312 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-08-05 10:43:41,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:43:41,323 INFO L225 Difference]: With dead ends: 13 [2019-08-05 10:43:41,324 INFO L226 Difference]: Without dead ends: 12 [2019-08-05 10:43:41,326 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 10:43:41,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-08-05 10:43:41,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-08-05 10:43:41,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-08-05 10:43:41,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2019-08-05 10:43:41,358 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 4 [2019-08-05 10:43:41,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:43:41,359 INFO L475 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2019-08-05 10:43:41,359 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 10:43:41,359 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2019-08-05 10:43:41,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-05 10:43:41,359 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:43:41,360 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-08-05 10:43:41,360 INFO L418 AbstractCegarLoop]: === Iteration 2 === [loopFreeExErr2ASSERT_VIOLATIONASSERT, loopFreeExErr0ASSERT_VIOLATIONASSERT, loopFreeExErr1ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:43:41,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:43:41,361 INFO L82 PathProgramCache]: Analyzing trace with hash 928583, now seen corresponding path program 1 times [2019-08-05 10:43:41,362 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:43:41,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-08-05 10:43:41,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-08-05 10:43:41,387 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-08-05 10:43:41,406 INFO L202 PluginConnector]: Adding new model LoopFree-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 10:43:41 BoogieIcfgContainer [2019-08-05 10:43:41,407 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 10:43:41,410 INFO L168 Benchmark]: Toolchain (without parser) took 1011.13 ms. Allocated memory is still 138.4 MB. Free memory was 108.1 MB in the beginning and 71.9 MB in the end (delta: 36.2 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. [2019-08-05 10:43:41,411 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.24 ms. Allocated memory is still 138.4 MB. Free memory was 109.1 MB in the beginning and 108.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-08-05 10:43:41,412 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.59 ms. Allocated memory is still 138.4 MB. Free memory was 107.9 MB in the beginning and 106.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-08-05 10:43:41,414 INFO L168 Benchmark]: Boogie Preprocessor took 26.39 ms. Allocated memory is still 138.4 MB. Free memory was 106.1 MB in the beginning and 105.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 7.1 GB. [2019-08-05 10:43:41,415 INFO L168 Benchmark]: RCFGBuilder took 372.15 ms. Allocated memory is still 138.4 MB. Free memory was 104.8 MB in the beginning and 94.7 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2019-08-05 10:43:41,416 INFO L168 Benchmark]: TraceAbstraction took 571.18 ms. Allocated memory is still 138.4 MB. Free memory was 94.2 MB in the beginning and 71.9 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2019-08-05 10:43:41,420 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 0.24 ms. Allocated memory is still 138.4 MB. Free memory was 109.1 MB in the beginning and 108.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 36.59 ms. Allocated memory is still 138.4 MB. Free memory was 107.9 MB in the beginning and 106.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.39 ms. Allocated memory is still 138.4 MB. Free memory was 106.1 MB in the beginning and 105.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 372.15 ms. Allocated memory is still 138.4 MB. Free memory was 104.8 MB in the beginning and 94.7 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 571.18 ms. Allocated memory is still 138.4 MB. Free memory was 94.2 MB in the beginning and 71.9 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 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: [L13] x := 0; [L14] y := 0; VAL [x=0, y=0] [L21] y := 4; VAL [x=0, y=4] [L22] COND TRUE x >= 0 [L23] x := x + 1; VAL [x=1, y=4] [L24] assert x == 0; VAL [x=1, y=4] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 3 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10 SDtfs, 0 SDslu, 2 SDs, 0 SdLazy, 11 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=1, 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, 0.1s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 21 SizeOfPredicates, 0 NumberOfNonLiveVariables, 13 ConjunctsInSsa, 3 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...