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/20181010-MemSafetyPathprograms/alternating_list_true-unreach-call_true-valid-memsafety.i_17.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 11:05:54,662 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 11:05:54,664 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 11:05:54,676 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 11:05:54,676 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 11:05:54,677 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 11:05:54,678 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 11:05:54,680 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 11:05:54,682 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 11:05:54,683 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 11:05:54,684 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 11:05:54,684 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 11:05:54,684 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 11:05:54,685 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 11:05:54,686 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 11:05:54,688 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 11:05:54,688 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 11:05:54,689 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 11:05:54,691 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 11:05:54,693 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 11:05:54,695 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 11:05:54,696 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 11:05:54,697 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 11:05:54,698 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 11:05:54,700 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 11:05:54,701 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 11:05:54,701 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 11:05:54,702 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 11:05:54,702 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 11:05:54,703 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 11:05:54,704 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 11:05:54,704 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 11:05:54,705 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 11:05:54,706 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 11:05:54,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 11:05:54,707 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 11:05:54,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 11:05:54,708 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 11:05:54,708 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 11:05:54,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 11:05:54,710 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 11:05:54,755 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 11:05:54,771 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 11:05:54,776 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 11:05:54,777 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 11:05:54,778 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 11:05:54,778 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/alternating_list_true-unreach-call_true-valid-memsafety.i_17.bpl [2019-08-05 11:05:54,779 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/alternating_list_true-unreach-call_true-valid-memsafety.i_17.bpl' [2019-08-05 11:05:54,836 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 11:05:54,837 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 11:05:54,838 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 11:05:54,838 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 11:05:54,839 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 11:05:54,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "alternating_list_true-unreach-call_true-valid-memsafety.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:05:54" (1/1) ... [2019-08-05 11:05:54,870 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "alternating_list_true-unreach-call_true-valid-memsafety.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:05:54" (1/1) ... [2019-08-05 11:05:54,881 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 11:05:54,882 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 11:05:54,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 11:05:54,882 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 11:05:54,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:05:54" (1/1) ... [2019-08-05 11:05:54,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:05:54" (1/1) ... [2019-08-05 11:05:54,900 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:05:54" (1/1) ... [2019-08-05 11:05:54,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:05:54" (1/1) ... [2019-08-05 11:05:54,920 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:05:54" (1/1) ... [2019-08-05 11:05:54,922 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:05:54" (1/1) ... [2019-08-05 11:05:54,924 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:05:54" (1/1) ... [2019-08-05 11:05:54,927 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 11:05:54,928 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 11:05:54,928 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 11:05:54,928 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 11:05:54,929 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "alternating_list_true-unreach-call_true-valid-memsafety.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:05:54" (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 11:05:54,999 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2019-08-05 11:05:54,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 11:05:55,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 11:05:55,372 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 11:05:55,372 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 11:05:55,374 INFO L202 PluginConnector]: Adding new model alternating_list_true-unreach-call_true-valid-memsafety.i_17.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:05:55 BoogieIcfgContainer [2019-08-05 11:05:55,374 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 11:05:55,375 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 11:05:55,376 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 11:05:55,379 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 11:05:55,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "alternating_list_true-unreach-call_true-valid-memsafety.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:05:54" (1/2) ... [2019-08-05 11:05:55,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c894a4a and model type alternating_list_true-unreach-call_true-valid-memsafety.i_17.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 11:05:55, skipping insertion in model container [2019-08-05 11:05:55,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "alternating_list_true-unreach-call_true-valid-memsafety.i_17.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:05:55" (2/2) ... [2019-08-05 11:05:55,383 INFO L109 eAbstractionObserver]: Analyzing ICFG alternating_list_true-unreach-call_true-valid-memsafety.i_17.bpl [2019-08-05 11:05:55,394 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 11:05:55,402 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 11:05:55,422 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 11:05:55,457 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 11:05:55,460 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 11:05:55,461 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 11:05:55,461 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 11:05:55,461 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 11:05:55,461 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 11:05:55,462 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 11:05:55,462 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 11:05:55,462 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 11:05:55,489 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-08-05 11:05:55,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-05 11:05:55,498 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:05:55,499 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-08-05 11:05:55,501 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:05:55,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:05:55,509 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times [2019-08-05 11:05:55,559 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:05:55,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:05:55,637 INFO L256 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 10 conjunts are in the unsatisfiable core [2019-08-05 11:05:55,642 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:05:55,719 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 11:05:55,720 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:05:55,749 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:05:55,749 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-05 11:05:55,750 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-08-05 11:05:55,774 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 11:05:55,776 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:05:55,777 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-05 11:05:55,780 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 11:05:55,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 11:05:55,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 11:05:55,792 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2019-08-05 11:05:55,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:05:55,852 INFO L93 Difference]: Finished difference Result 3 states and 3 transitions. [2019-08-05 11:05:55,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 11:05:55,854 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-08-05 11:05:55,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:05:55,864 INFO L225 Difference]: With dead ends: 3 [2019-08-05 11:05:55,864 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 11:05:55,866 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 11:05:55,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 11:05:55,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 11:05:55,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 11:05:55,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 11:05:55,888 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-08-05 11:05:55,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:05:55,889 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 11:05:55,889 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 11:05:55,889 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 11:05:55,890 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 11:05:55,895 INFO L202 PluginConnector]: Adding new model alternating_list_true-unreach-call_true-valid-memsafety.i_17.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 11:05:55 BoogieIcfgContainer [2019-08-05 11:05:55,895 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 11:05:55,898 INFO L168 Benchmark]: Toolchain (without parser) took 1059.79 ms. Allocated memory is still 134.2 MB. Free memory was 110.0 MB in the beginning and 70.1 MB in the end (delta: 39.9 MB). Peak memory consumption was 39.9 MB. Max. memory is 7.1 GB. [2019-08-05 11:05:55,899 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.25 ms. Allocated memory is still 134.2 MB. Free memory was 111.9 MB in the beginning and 111.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-08-05 11:05:55,900 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.21 ms. Allocated memory is still 134.2 MB. Free memory was 110.0 MB in the beginning and 108.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-08-05 11:05:55,902 INFO L168 Benchmark]: Boogie Preprocessor took 45.50 ms. Allocated memory is still 134.2 MB. Free memory was 108.1 MB in the beginning and 106.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-08-05 11:05:55,905 INFO L168 Benchmark]: RCFGBuilder took 446.33 ms. Allocated memory is still 134.2 MB. Free memory was 106.8 MB in the beginning and 92.3 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. [2019-08-05 11:05:55,906 INFO L168 Benchmark]: TraceAbstraction took 519.95 ms. Allocated memory is still 134.2 MB. Free memory was 91.9 MB in the beginning and 70.1 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2019-08-05 11:05:55,912 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 0.25 ms. Allocated memory is still 134.2 MB. Free memory was 111.9 MB in the beginning and 111.6 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 43.21 ms. Allocated memory is still 134.2 MB. Free memory was 110.0 MB in the beginning and 108.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 45.50 ms. Allocated memory is still 134.2 MB. Free memory was 108.1 MB in the beginning and 106.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 446.33 ms. Allocated memory is still 134.2 MB. Free memory was 106.8 MB in the beginning and 92.3 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 519.95 ms. Allocated memory is still 134.2 MB. Free memory was 91.9 MB in the beginning and 70.1 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 161]: 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, 6 locations, 1 error locations. SAFE Result, 0.4s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 1 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 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, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 33 SizeOfPredicates, 7 NumberOfNonLiveVariables, 69 ConjunctsInSsa, 10 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...