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/BoogiePL/sifa/02-if-else.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 09:53:29,339 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 09:53:29,341 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 09:53:29,356 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 09:53:29,356 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 09:53:29,358 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 09:53:29,359 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 09:53:29,362 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 09:53:29,364 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 09:53:29,366 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 09:53:29,368 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 09:53:29,369 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 09:53:29,369 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 09:53:29,371 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 09:53:29,373 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 09:53:29,375 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 09:53:29,375 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 09:53:29,376 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 09:53:29,378 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 09:53:29,380 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 09:53:29,382 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 09:53:29,383 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 09:53:29,384 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 09:53:29,385 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 09:53:29,387 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 09:53:29,388 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 09:53:29,388 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 09:53:29,389 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 09:53:29,389 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 09:53:29,390 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 09:53:29,390 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 09:53:29,391 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 09:53:29,392 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 09:53:29,393 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 09:53:29,395 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 09:53:29,395 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 09:53:29,396 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 09:53:29,396 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 09:53:29,396 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 09:53:29,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 09:53:29,399 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 09:53:29,433 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 09:53:29,446 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 09:53:29,450 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 09:53:29,451 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 09:53:29,452 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 09:53:29,453 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/BoogiePL/sifa/02-if-else.bpl [2019-08-05 09:53:29,453 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/BoogiePL/sifa/02-if-else.bpl' [2019-08-05 09:53:29,485 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 09:53:29,487 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 09:53:29,488 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 09:53:29,488 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 09:53:29,488 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 09:53:29,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "02-if-else.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:53:29" (1/1) ... [2019-08-05 09:53:29,516 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "02-if-else.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:53:29" (1/1) ... [2019-08-05 09:53:29,522 WARN L165 Inliner]: Program contained no entry procedure! [2019-08-05 09:53:29,522 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-08-05 09:53:29,522 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-08-05 09:53:29,524 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 09:53:29,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 09:53:29,525 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 09:53:29,526 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 09:53:29,537 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "02-if-else.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:53:29" (1/1) ... [2019-08-05 09:53:29,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "02-if-else.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:53:29" (1/1) ... [2019-08-05 09:53:29,538 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "02-if-else.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:53:29" (1/1) ... [2019-08-05 09:53:29,538 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "02-if-else.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:53:29" (1/1) ... [2019-08-05 09:53:29,541 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "02-if-else.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:53:29" (1/1) ... [2019-08-05 09:53:29,543 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "02-if-else.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:53:29" (1/1) ... [2019-08-05 09:53:29,543 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "02-if-else.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:53:29" (1/1) ... [2019-08-05 09:53:29,545 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 09:53:29,545 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 09:53:29,546 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 09:53:29,546 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 09:53:29,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "02-if-else.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:53:29" (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 09:53:29,623 INFO L124 BoogieDeclarations]: Specification and implementation of procedure f given in one single declaration [2019-08-05 09:53:29,624 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-08-05 09:53:29,624 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-08-05 09:53:29,901 INFO L275 CfgBuilder]: Using library mode [2019-08-05 09:53:29,901 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 09:53:29,902 INFO L202 PluginConnector]: Adding new model 02-if-else.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 09:53:29 BoogieIcfgContainer [2019-08-05 09:53:29,902 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 09:53:29,904 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 09:53:29,904 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 09:53:29,907 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 09:53:29,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "02-if-else.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:53:29" (1/2) ... [2019-08-05 09:53:29,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b5d75e and model type 02-if-else.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 09:53:29, skipping insertion in model container [2019-08-05 09:53:29,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "02-if-else.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 09:53:29" (2/2) ... [2019-08-05 09:53:29,910 INFO L109 eAbstractionObserver]: Analyzing ICFG 02-if-else.bpl [2019-08-05 09:53:29,920 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 09:53:29,928 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-08-05 09:53:29,944 INFO L252 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-08-05 09:53:29,970 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 09:53:29,970 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 09:53:29,971 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 09:53:29,971 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 09:53:29,971 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 09:53:29,971 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 09:53:29,971 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 09:53:29,972 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 09:53:29,972 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 09:53:29,987 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-08-05 09:53:29,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-08-05 09:53:29,995 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:53:29,996 INFO L399 BasicCegarLoop]: trace histogram [1, 1] [2019-08-05 09:53:29,999 INFO L418 AbstractCegarLoop]: === Iteration 1 === [fErr1ASSERT_VIOLATIONASSERT, fErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:53:30,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:53:30,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1339, now seen corresponding path program 1 times [2019-08-05 09:53:30,053 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:53:30,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:53:30,082 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 3 conjunts are in the unsatisfiable core [2019-08-05 09:53:30,087 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:53:30,152 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 09:53:30,155 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 09:53:30,155 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-08-05 09:53:30,160 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 09:53:30,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 09:53:30,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 09:53:30,179 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2019-08-05 09:53:30,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:53:30,221 INFO L93 Difference]: Finished difference Result 5 states and 4 transitions. [2019-08-05 09:53:30,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 09:53:30,223 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2019-08-05 09:53:30,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:53:30,235 INFO L225 Difference]: With dead ends: 5 [2019-08-05 09:53:30,235 INFO L226 Difference]: Without dead ends: 4 [2019-08-05 09:53:30,237 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 09:53:30,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states. [2019-08-05 09:53:30,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2019-08-05 09:53:30,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-08-05 09:53:30,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3 transitions. [2019-08-05 09:53:30,272 INFO L78 Accepts]: Start accepts. Automaton has 4 states and 3 transitions. Word has length 2 [2019-08-05 09:53:30,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:53:30,273 INFO L475 AbstractCegarLoop]: Abstraction has 4 states and 3 transitions. [2019-08-05 09:53:30,273 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 09:53:30,273 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 3 transitions. [2019-08-05 09:53:30,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-08-05 09:53:30,274 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:53:30,274 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-08-05 09:53:30,275 INFO L418 AbstractCegarLoop]: === Iteration 2 === [fErr1ASSERT_VIOLATIONASSERT, fErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:53:30,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:53:30,275 INFO L82 PathProgramCache]: Analyzing trace with hash 41548, now seen corresponding path program 1 times [2019-08-05 09:53:30,276 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:53:30,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-08-05 09:53:30,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-08-05 09:53:30,295 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-08-05 09:53:30,315 INFO L202 PluginConnector]: Adding new model 02-if-else.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 09:53:30 BoogieIcfgContainer [2019-08-05 09:53:30,315 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 09:53:30,319 INFO L168 Benchmark]: Toolchain (without parser) took 830.78 ms. Allocated memory is still 133.2 MB. Free memory was 110.9 MB in the beginning and 78.1 MB in the end (delta: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 7.1 GB. [2019-08-05 09:53:30,320 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.24 ms. Allocated memory is still 133.2 MB. Free memory was 111.9 MB in the beginning and 111.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-08-05 09:53:30,322 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.30 ms. Allocated memory is still 133.2 MB. Free memory was 110.6 MB in the beginning and 108.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-08-05 09:53:30,323 INFO L168 Benchmark]: Boogie Preprocessor took 19.73 ms. Allocated memory is still 133.2 MB. Free memory was 108.8 MB in the beginning and 107.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. [2019-08-05 09:53:30,324 INFO L168 Benchmark]: RCFGBuilder took 356.85 ms. Allocated memory is still 133.2 MB. Free memory was 107.7 MB in the beginning and 99.0 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 7.1 GB. [2019-08-05 09:53:30,325 INFO L168 Benchmark]: TraceAbstraction took 412.09 ms. Allocated memory is still 133.2 MB. Free memory was 98.5 MB in the beginning and 78.4 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2019-08-05 09:53:30,329 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 133.2 MB. Free memory was 111.9 MB in the beginning and 111.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 37.30 ms. Allocated memory is still 133.2 MB. Free memory was 110.6 MB in the beginning and 108.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 19.73 ms. Allocated memory is still 133.2 MB. Free memory was 108.8 MB in the beginning and 107.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 356.85 ms. Allocated memory is still 133.2 MB. Free memory was 107.7 MB in the beginning and 99.0 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 412.09 ms. Allocated memory is still 133.2 MB. Free memory was 98.5 MB in the beginning and 78.4 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 10]: assertion can be violated assertion can be violated We found a FailurePath: [L7] i := 1; VAL [i=1] [L9] assert i == 0 || i == 1; VAL [i=1] [L10] assert i == 0; VAL [i=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 2 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1 SDtfs, 3 SDslu, 0 SDs, 0 SdLazy, 3 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred 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, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 1 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 5 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...