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_44.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 11:00:29,901 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 11:00:29,903 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 11:00:29,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 11:00:29,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 11:00:29,921 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 11:00:29,923 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 11:00:29,924 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 11:00:29,926 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 11:00:29,927 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 11:00:29,928 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 11:00:29,928 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 11:00:29,929 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 11:00:29,930 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 11:00:29,931 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 11:00:29,932 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 11:00:29,933 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 11:00:29,934 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 11:00:29,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 11:00:29,938 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 11:00:29,939 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 11:00:29,940 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 11:00:29,942 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 11:00:29,942 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 11:00:29,945 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 11:00:29,945 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 11:00:29,946 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 11:00:29,947 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 11:00:29,947 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 11:00:29,948 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 11:00:29,948 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 11:00:29,949 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 11:00:29,950 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 11:00:29,951 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 11:00:29,952 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 11:00:29,952 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 11:00:29,953 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 11:00:29,953 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 11:00:29,953 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 11:00:29,954 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 11:00:29,955 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 11:00:29,984 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 11:00:30,002 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 11:00:30,006 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 11:00:30,007 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 11:00:30,008 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 11:00:30,010 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/alternating_list_true-unreach-call_true-valid-memsafety.i_44.bpl [2019-08-05 11:00:30,010 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/alternating_list_true-unreach-call_true-valid-memsafety.i_44.bpl' [2019-08-05 11:00:30,080 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 11:00:30,082 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 11:00:30,082 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 11:00:30,083 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 11:00:30,083 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 11:00:30,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "alternating_list_true-unreach-call_true-valid-memsafety.i_44.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:00:30" (1/1) ... [2019-08-05 11:00:30,124 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "alternating_list_true-unreach-call_true-valid-memsafety.i_44.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:00:30" (1/1) ... [2019-08-05 11:00:30,136 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 11:00:30,137 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 11:00:30,137 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 11:00:30,137 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 11:00:30,149 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_44.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:00:30" (1/1) ... [2019-08-05 11:00:30,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_44.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:00:30" (1/1) ... [2019-08-05 11:00:30,156 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_44.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:00:30" (1/1) ... [2019-08-05 11:00:30,157 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_44.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:00:30" (1/1) ... [2019-08-05 11:00:30,177 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_44.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:00:30" (1/1) ... [2019-08-05 11:00:30,181 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_44.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:00:30" (1/1) ... [2019-08-05 11:00:30,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_44.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:00:30" (1/1) ... [2019-08-05 11:00:30,191 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 11:00:30,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 11:00:30,192 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 11:00:30,192 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 11:00:30,198 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "alternating_list_true-unreach-call_true-valid-memsafety.i_44.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:00:30" (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 11:00:30,266 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2019-08-05 11:00:30,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 11:00:30,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 11:00:30,901 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 11:00:30,902 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 11:00:30,903 INFO L202 PluginConnector]: Adding new model alternating_list_true-unreach-call_true-valid-memsafety.i_44.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:00:30 BoogieIcfgContainer [2019-08-05 11:00:30,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 11:00:30,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 11:00:30,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 11:00:30,910 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 11:00:30,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "alternating_list_true-unreach-call_true-valid-memsafety.i_44.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:00:30" (1/2) ... [2019-08-05 11:00:30,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e5530e2 and model type alternating_list_true-unreach-call_true-valid-memsafety.i_44.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 11:00:30, skipping insertion in model container [2019-08-05 11:00:30,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "alternating_list_true-unreach-call_true-valid-memsafety.i_44.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:00:30" (2/2) ... [2019-08-05 11:00:30,914 INFO L109 eAbstractionObserver]: Analyzing ICFG alternating_list_true-unreach-call_true-valid-memsafety.i_44.bpl [2019-08-05 11:00:30,924 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 11:00:30,934 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 11:00:30,951 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 11:00:30,978 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 11:00:30,979 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 11:00:30,979 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 11:00:30,979 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 11:00:30,979 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 11:00:30,979 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 11:00:30,980 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 11:00:30,980 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 11:00:30,980 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 11:00:30,994 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-08-05 11:00:31,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-08-05 11:00:31,002 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:00:31,003 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-08-05 11:00:31,006 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:00:31,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:00:31,012 INFO L82 PathProgramCache]: Analyzing trace with hash 889539725, now seen corresponding path program 1 times [2019-08-05 11:00:31,061 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:00:31,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:00:31,129 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 1 conjunts are in the unsatisfiable core [2019-08-05 11:00:31,137 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:00:31,152 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 11:00:31,155 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:00:31,155 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-05 11:00:31,159 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-08-05 11:00:31,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-08-05 11:00:31,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-08-05 11:00:31,173 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 2 states. [2019-08-05 11:00:31,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:00:31,186 INFO L93 Difference]: Finished difference Result 5 states and 6 transitions. [2019-08-05 11:00:31,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-08-05 11:00:31,187 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2019-08-05 11:00:31,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:00:31,194 INFO L225 Difference]: With dead ends: 5 [2019-08-05 11:00:31,195 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 11:00:31,197 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-08-05 11:00:31,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 11:00:31,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 11:00:31,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 11:00:31,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 11:00:31,223 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2019-08-05 11:00:31,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:00:31,224 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 11:00:31,224 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-08-05 11:00:31,224 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 11:00:31,225 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 11:00:31,230 INFO L202 PluginConnector]: Adding new model alternating_list_true-unreach-call_true-valid-memsafety.i_44.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 11:00:31 BoogieIcfgContainer [2019-08-05 11:00:31,230 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 11:00:31,233 INFO L168 Benchmark]: Toolchain (without parser) took 1150.35 ms. Allocated memory is still 134.7 MB. Free memory was 110.3 MB in the beginning and 64.2 MB in the end (delta: 46.1 MB). Peak memory consumption was 46.1 MB. Max. memory is 7.1 GB. [2019-08-05 11:00:31,235 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.25 ms. Allocated memory is still 134.7 MB. Free memory was 112.3 MB in the beginning and 112.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-05 11:00:31,236 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.81 ms. Allocated memory is still 134.7 MB. Free memory was 110.1 MB in the beginning and 108.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-08-05 11:00:31,237 INFO L168 Benchmark]: Boogie Preprocessor took 54.41 ms. Allocated memory is still 134.7 MB. Free memory was 108.3 MB in the beginning and 106.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. [2019-08-05 11:00:31,238 INFO L168 Benchmark]: RCFGBuilder took 712.16 ms. Allocated memory is still 134.7 MB. Free memory was 106.8 MB in the beginning and 82.1 MB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2019-08-05 11:00:31,239 INFO L168 Benchmark]: TraceAbstraction took 325.39 ms. Allocated memory is still 134.7 MB. Free memory was 81.9 MB in the beginning and 64.2 MB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 7.1 GB. [2019-08-05 11:00:31,244 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 134.7 MB. Free memory was 112.3 MB in the beginning and 112.1 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 53.81 ms. Allocated memory is still 134.7 MB. Free memory was 110.1 MB in the beginning and 108.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 54.41 ms. Allocated memory is still 134.7 MB. Free memory was 108.3 MB in the beginning and 106.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 712.16 ms. Allocated memory is still 134.7 MB. Free memory was 106.8 MB in the beginning and 82.1 MB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 325.39 ms. Allocated memory is still 134.7 MB. Free memory was 81.9 MB in the beginning and 64.2 MB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 244]: 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, 8 locations, 1 error locations. SAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred 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, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 25 SizeOfPredicates, 0 NumberOfNonLiveVariables, 77 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...