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/eq/20_multilayer_of_array_access.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 11:11:01,320 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 11:11:01,322 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 11:11:01,335 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 11:11:01,335 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 11:11:01,337 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 11:11:01,338 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 11:11:01,340 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 11:11:01,342 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 11:11:01,343 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 11:11:01,344 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 11:11:01,344 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 11:11:01,344 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 11:11:01,345 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 11:11:01,347 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 11:11:01,348 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 11:11:01,349 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 11:11:01,350 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 11:11:01,352 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 11:11:01,354 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 11:11:01,356 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 11:11:01,357 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 11:11:01,358 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 11:11:01,359 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 11:11:01,362 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 11:11:01,362 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 11:11:01,362 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 11:11:01,364 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 11:11:01,364 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 11:11:01,365 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 11:11:01,365 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 11:11:01,366 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 11:11:01,367 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 11:11:01,368 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 11:11:01,369 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 11:11:01,369 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 11:11:01,370 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 11:11:01,370 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 11:11:01,371 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 11:11:01,372 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 11:11:01,372 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 11:11:01,401 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 11:11:01,415 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 11:11:01,419 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 11:11:01,421 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 11:11:01,422 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 11:11:01,422 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/abstractInterpretation/regression/eq/20_multilayer_of_array_access.bpl [2019-08-05 11:11:01,423 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/abstractInterpretation/regression/eq/20_multilayer_of_array_access.bpl' [2019-08-05 11:11:01,460 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 11:11:01,462 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 11:11:01,463 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 11:11:01,463 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 11:11:01,463 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 11:11:01,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "20_multilayer_of_array_access.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:11:01" (1/1) ... [2019-08-05 11:11:01,491 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "20_multilayer_of_array_access.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:11:01" (1/1) ... [2019-08-05 11:11:01,499 WARN L165 Inliner]: Program contained no entry procedure! [2019-08-05 11:11:01,500 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-08-05 11:11:01,500 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-08-05 11:11:01,502 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 11:11:01,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 11:11:01,503 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 11:11:01,503 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 11:11:01,516 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "20_multilayer_of_array_access.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:11:01" (1/1) ... [2019-08-05 11:11:01,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "20_multilayer_of_array_access.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:11:01" (1/1) ... [2019-08-05 11:11:01,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "20_multilayer_of_array_access.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:11:01" (1/1) ... [2019-08-05 11:11:01,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "20_multilayer_of_array_access.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:11:01" (1/1) ... [2019-08-05 11:11:01,521 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "20_multilayer_of_array_access.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:11:01" (1/1) ... [2019-08-05 11:11:01,527 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "20_multilayer_of_array_access.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:11:01" (1/1) ... [2019-08-05 11:11:01,528 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "20_multilayer_of_array_access.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:11:01" (1/1) ... [2019-08-05 11:11:01,529 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 11:11:01,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 11:11:01,530 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 11:11:01,530 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 11:11:01,531 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "20_multilayer_of_array_access.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:11:01" (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 11:11:01,603 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Easy given in one single declaration [2019-08-05 11:11:01,603 INFO L130 BoogieDeclarations]: Found specification of procedure Easy [2019-08-05 11:11:01,604 INFO L138 BoogieDeclarations]: Found implementation of procedure Easy [2019-08-05 11:11:01,812 INFO L275 CfgBuilder]: Using library mode [2019-08-05 11:11:01,813 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 11:11:01,814 INFO L202 PluginConnector]: Adding new model 20_multilayer_of_array_access.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:11:01 BoogieIcfgContainer [2019-08-05 11:11:01,815 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 11:11:01,820 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 11:11:01,820 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 11:11:01,824 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 11:11:01,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "20_multilayer_of_array_access.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:11:01" (1/2) ... [2019-08-05 11:11:01,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31b357c9 and model type 20_multilayer_of_array_access.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 11:11:01, skipping insertion in model container [2019-08-05 11:11:01,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "20_multilayer_of_array_access.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:11:01" (2/2) ... [2019-08-05 11:11:01,827 INFO L109 eAbstractionObserver]: Analyzing ICFG 20_multilayer_of_array_access.bpl [2019-08-05 11:11:01,838 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 11:11:01,848 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 11:11:01,865 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 11:11:01,896 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 11:11:01,897 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 11:11:01,897 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 11:11:01,897 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 11:11:01,897 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 11:11:01,897 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 11:11:01,897 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 11:11:01,898 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 11:11:01,898 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 11:11:01,912 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2019-08-05 11:11:01,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-08-05 11:11:01,919 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:11:01,920 INFO L399 BasicCegarLoop]: trace histogram [1, 1] [2019-08-05 11:11:01,923 INFO L418 AbstractCegarLoop]: === Iteration 1 === [EasyErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:11:01,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:11:01,931 INFO L82 PathProgramCache]: Analyzing trace with hash 962, now seen corresponding path program 1 times [2019-08-05 11:11:01,976 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:11:02,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:11:02,009 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2019-08-05 11:11:02,012 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:11:02,091 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-08-05 11:11:02,092 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:11:02,114 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:11:02,114 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-05 11:11:02,115 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-08-05 11:11:02,170 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 11:11:02,173 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:11:02,173 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-08-05 11:11:02,178 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 11:11:02,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 11:11:02,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 11:11:02,191 INFO L87 Difference]: Start difference. First operand 4 states. Second operand 3 states. [2019-08-05 11:11:02,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:11:02,211 INFO L93 Difference]: Finished difference Result 3 states and 2 transitions. [2019-08-05 11:11:02,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 11:11:02,213 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2019-08-05 11:11:02,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:11:02,219 INFO L225 Difference]: With dead ends: 3 [2019-08-05 11:11:02,219 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 11:11:02,221 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 11:11:02,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 11:11:02,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 11:11:02,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 11:11:02,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 11:11:02,246 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2 [2019-08-05 11:11:02,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:11:02,246 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 11:11:02,246 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 11:11:02,247 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 11:11:02,247 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 11:11:02,252 INFO L202 PluginConnector]: Adding new model 20_multilayer_of_array_access.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 11:11:02 BoogieIcfgContainer [2019-08-05 11:11:02,252 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 11:11:02,257 INFO L168 Benchmark]: Toolchain (without parser) took 792.69 ms. Allocated memory is still 140.0 MB. Free memory was 108.5 MB in the beginning and 76.0 MB in the end (delta: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 7.1 GB. [2019-08-05 11:11:02,258 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.26 ms. Allocated memory is still 140.0 MB. Free memory was 109.7 MB in the beginning and 109.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-05 11:11:02,261 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.94 ms. Allocated memory is still 140.0 MB. Free memory was 108.5 MB in the beginning and 106.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-08-05 11:11:02,262 INFO L168 Benchmark]: Boogie Preprocessor took 26.54 ms. Allocated memory is still 140.0 MB. Free memory was 106.6 MB in the beginning and 105.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. [2019-08-05 11:11:02,263 INFO L168 Benchmark]: RCFGBuilder took 285.13 ms. Allocated memory is still 140.0 MB. Free memory was 105.5 MB in the beginning and 96.7 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. [2019-08-05 11:11:02,264 INFO L168 Benchmark]: TraceAbstraction took 433.10 ms. Allocated memory is still 140.0 MB. Free memory was 96.5 MB in the beginning and 76.0 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-08-05 11:11:02,270 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 0.26 ms. Allocated memory is still 140.0 MB. Free memory was 109.7 MB in the beginning and 109.5 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 39.94 ms. Allocated memory is still 140.0 MB. Free memory was 108.5 MB in the beginning and 106.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.54 ms. Allocated memory is still 140.0 MB. Free memory was 106.6 MB in the beginning and 105.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 285.13 ms. Allocated memory is still 140.0 MB. Free memory was 105.5 MB in the beginning and 96.7 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 433.10 ms. Allocated memory is still 140.0 MB. Free memory was 96.5 MB in the beginning and 76.0 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 locations, 1 error locations. SAFE Result, 0.3s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1 SDtfs, 1 SDslu, 0 SDs, 0 SdLazy, 1 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=4occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 1 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 6 ConjunctsInSsa, 2 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 correct! Received shutdown request...