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_43.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 11:00:07,277 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 11:00:07,280 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 11:00:07,296 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 11:00:07,296 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 11:00:07,298 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 11:00:07,299 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 11:00:07,302 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 11:00:07,304 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 11:00:07,305 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 11:00:07,308 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 11:00:07,308 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 11:00:07,309 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 11:00:07,310 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 11:00:07,311 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 11:00:07,312 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 11:00:07,313 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 11:00:07,314 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 11:00:07,316 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 11:00:07,318 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 11:00:07,320 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 11:00:07,321 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 11:00:07,323 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 11:00:07,324 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 11:00:07,328 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 11:00:07,328 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 11:00:07,329 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 11:00:07,331 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 11:00:07,331 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 11:00:07,332 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 11:00:07,332 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 11:00:07,333 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 11:00:07,336 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 11:00:07,337 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 11:00:07,340 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 11:00:07,340 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 11:00:07,341 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 11:00:07,341 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 11:00:07,342 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 11:00:07,343 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 11:00:07,346 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 11:00:07,380 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 11:00:07,401 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 11:00:07,405 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 11:00:07,407 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 11:00:07,408 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 11:00:07,408 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/alternating_list_true-unreach-call_true-valid-memsafety.i_43.bpl [2019-08-05 11:00:07,409 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/alternating_list_true-unreach-call_true-valid-memsafety.i_43.bpl' [2019-08-05 11:00:07,481 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 11:00:07,483 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 11:00:07,483 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 11:00:07,484 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 11:00:07,484 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 11:00:07,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "alternating_list_true-unreach-call_true-valid-memsafety.i_43.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:00:07" (1/1) ... [2019-08-05 11:00:07,529 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "alternating_list_true-unreach-call_true-valid-memsafety.i_43.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:00:07" (1/1) ... [2019-08-05 11:00:07,542 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 11:00:07,543 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 11:00:07,543 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 11:00:07,543 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 11:00:07,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_43.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:00:07" (1/1) ... [2019-08-05 11:00:07,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_43.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:00:07" (1/1) ... [2019-08-05 11:00:07,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_43.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:00:07" (1/1) ... [2019-08-05 11:00:07,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_43.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:00:07" (1/1) ... [2019-08-05 11:00:07,578 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_43.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:00:07" (1/1) ... [2019-08-05 11:00:07,585 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_43.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:00:07" (1/1) ... [2019-08-05 11:00:07,587 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_43.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:00:07" (1/1) ... [2019-08-05 11:00:07,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 11:00:07,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 11:00:07,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 11:00:07,599 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 11:00:07,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "alternating_list_true-unreach-call_true-valid-memsafety.i_43.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:00:07" (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 11:00:07,674 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2019-08-05 11:00:07,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 11:00:07,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 11:00:08,229 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 11:00:08,230 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 11:00:08,231 INFO L202 PluginConnector]: Adding new model alternating_list_true-unreach-call_true-valid-memsafety.i_43.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:00:08 BoogieIcfgContainer [2019-08-05 11:00:08,231 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 11:00:08,233 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 11:00:08,233 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 11:00:08,236 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 11:00:08,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "alternating_list_true-unreach-call_true-valid-memsafety.i_43.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:00:07" (1/2) ... [2019-08-05 11:00:08,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@683e7298 and model type alternating_list_true-unreach-call_true-valid-memsafety.i_43.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 11:00:08, skipping insertion in model container [2019-08-05 11:00:08,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "alternating_list_true-unreach-call_true-valid-memsafety.i_43.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:00:08" (2/2) ... [2019-08-05 11:00:08,240 INFO L109 eAbstractionObserver]: Analyzing ICFG alternating_list_true-unreach-call_true-valid-memsafety.i_43.bpl [2019-08-05 11:00:08,250 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 11:00:08,257 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 11:00:08,272 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 11:00:08,298 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 11:00:08,298 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 11:00:08,298 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 11:00:08,299 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 11:00:08,299 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 11:00:08,299 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 11:00:08,299 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 11:00:08,299 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 11:00:08,300 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 11:00:08,313 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-08-05 11:00:08,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-08-05 11:00:08,321 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:00:08,322 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-08-05 11:00:08,325 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:00:08,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:00:08,331 INFO L82 PathProgramCache]: Analyzing trace with hash 889539725, now seen corresponding path program 1 times [2019-08-05 11:00:08,379 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:00:08,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:00:08,507 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 16 conjunts are in the unsatisfiable core [2019-08-05 11:00:08,513 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:00:08,783 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2019-08-05 11:00:08,784 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:00:08,785 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 61 [2019-08-05 11:00:08,786 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:00:08,789 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:00:09,011 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 16 [2019-08-05 11:00:09,013 INFO L567 ElimStorePlain]: treesize reduction 29, result has 46.3 percent of original size [2019-08-05 11:00:09,013 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-05 11:00:09,014 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:24, output treesize:25 [2019-08-05 11:00:09,067 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 11:00:09,069 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:00:09,069 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-05 11:00:09,073 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 11:00:09,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 11:00:09,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 11:00:09,089 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 3 states. [2019-08-05 11:00:09,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:00:09,190 INFO L93 Difference]: Finished difference Result 6 states and 7 transitions. [2019-08-05 11:00:09,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 11:00:09,192 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-08-05 11:00:09,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:00:09,200 INFO L225 Difference]: With dead ends: 6 [2019-08-05 11:00:09,200 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 11:00:09,202 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 11:00:09,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 11:00:09,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 11:00:09,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 11:00:09,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 11:00:09,229 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2019-08-05 11:00:09,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:00:09,229 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 11:00:09,229 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 11:00:09,229 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 11:00:09,230 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 11:00:09,235 INFO L202 PluginConnector]: Adding new model alternating_list_true-unreach-call_true-valid-memsafety.i_43.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 11:00:09 BoogieIcfgContainer [2019-08-05 11:00:09,235 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 11:00:09,237 INFO L168 Benchmark]: Toolchain (without parser) took 1754.17 ms. Allocated memory was 134.2 MB in the beginning and 169.9 MB in the end (delta: 35.7 MB). Free memory was 111.0 MB in the beginning and 133.3 MB in the end (delta: -22.3 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. [2019-08-05 11:00:09,239 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 134.2 MB. Free memory was 113.0 MB in the beginning and 112.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-08-05 11:00:09,240 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.95 ms. Allocated memory is still 134.2 MB. Free memory was 111.0 MB in the beginning and 109.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-08-05 11:00:09,241 INFO L168 Benchmark]: Boogie Preprocessor took 55.22 ms. Allocated memory is still 134.2 MB. Free memory was 109.0 MB in the beginning and 107.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. [2019-08-05 11:00:09,242 INFO L168 Benchmark]: RCFGBuilder took 633.01 ms. Allocated memory is still 134.2 MB. Free memory was 107.4 MB in the beginning and 83.1 MB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2019-08-05 11:00:09,243 INFO L168 Benchmark]: TraceAbstraction took 1002.48 ms. Allocated memory was 134.2 MB in the beginning and 169.9 MB in the end (delta: 35.7 MB). Free memory was 82.9 MB in the beginning and 133.3 MB in the end (delta: -50.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 11:00:09,247 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 0.23 ms. Allocated memory is still 134.2 MB. Free memory was 113.0 MB in the beginning and 112.8 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 58.95 ms. Allocated memory is still 134.2 MB. Free memory was 111.0 MB in the beginning and 109.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 55.22 ms. Allocated memory is still 134.2 MB. Free memory was 109.0 MB in the beginning and 107.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 633.01 ms. Allocated memory is still 134.2 MB. Free memory was 107.4 MB in the beginning and 83.1 MB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1002.48 ms. Allocated memory was 134.2 MB in the beginning and 169.9 MB in the end (delta: 35.7 MB). Free memory was 82.9 MB in the beginning and 133.3 MB in the end (delta: -50.4 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 242]: 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, 0.9s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2 SDtfs, 1 SDslu, 0 SDs, 0 SdLazy, 6 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 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, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 505 SizeOfPredicates, 9 NumberOfNonLiveVariables, 108 ConjunctsInSsa, 16 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...