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/sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 11:04:08,806 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 11:04:08,810 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 11:04:08,825 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 11:04:08,826 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 11:04:08,827 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 11:04:08,829 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 11:04:08,832 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 11:04:08,835 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 11:04:08,836 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 11:04:08,837 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 11:04:08,839 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 11:04:08,839 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 11:04:08,842 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 11:04:08,844 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 11:04:08,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 11:04:08,853 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 11:04:08,854 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 11:04:08,859 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 11:04:08,861 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 11:04:08,862 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 11:04:08,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 11:04:08,866 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 11:04:08,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 11:04:08,871 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 11:04:08,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 11:04:08,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 11:04:08,875 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 11:04:08,876 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 11:04:08,877 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 11:04:08,877 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 11:04:08,882 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 11:04:08,883 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 11:04:08,883 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 11:04:08,884 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 11:04:08,885 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 11:04:08,886 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 11:04:08,887 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 11:04:08,887 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 11:04:08,888 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 11:04:08,889 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 11:04:08,924 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 11:04:08,937 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 11:04:08,941 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 11:04:08,943 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 11:04:08,944 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 11:04:08,944 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl [2019-08-05 11:04:08,945 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl' [2019-08-05 11:04:09,006 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 11:04:09,008 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 11:04:09,008 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 11:04:09,009 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 11:04:09,009 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 11:04:09,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:04:08" (1/1) ... [2019-08-05 11:04:09,046 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:04:08" (1/1) ... [2019-08-05 11:04:09,063 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 11:04:09,067 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 11:04:09,067 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 11:04:09,067 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 11:04:09,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:04:08" (1/1) ... [2019-08-05 11:04:09,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:04:08" (1/1) ... [2019-08-05 11:04:09,084 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:04:08" (1/1) ... [2019-08-05 11:04:09,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:04:08" (1/1) ... [2019-08-05 11:04:09,094 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:04:08" (1/1) ... [2019-08-05 11:04:09,098 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:04:08" (1/1) ... [2019-08-05 11:04:09,103 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:04:08" (1/1) ... [2019-08-05 11:04:09,111 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 11:04:09,112 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 11:04:09,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 11:04:09,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 11:04:09,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:04:08" (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 11:04:09,192 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2019-08-05 11:04:09,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 11:04:09,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 11:04:09,645 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 11:04:09,646 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 11:04:09,647 INFO L202 PluginConnector]: Adding new model sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:04:09 BoogieIcfgContainer [2019-08-05 11:04:09,647 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 11:04:09,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 11:04:09,650 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 11:04:09,653 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 11:04:09,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:04:08" (1/2) ... [2019-08-05 11:04:09,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ff676a4 and model type sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 11:04:09, skipping insertion in model container [2019-08-05 11:04:09,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:04:09" (2/2) ... [2019-08-05 11:04:09,657 INFO L109 eAbstractionObserver]: Analyzing ICFG sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl [2019-08-05 11:04:09,668 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 11:04:09,675 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 11:04:09,688 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 11:04:09,715 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 11:04:09,716 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 11:04:09,716 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 11:04:09,717 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 11:04:09,717 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 11:04:09,717 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 11:04:09,718 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 11:04:09,718 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 11:04:09,718 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 11:04:09,733 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-08-05 11:04:09,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-05 11:04:09,741 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:04:09,742 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-08-05 11:04:09,745 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:04:09,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:04:09,751 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times [2019-08-05 11:04:09,799 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:04:09,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:04:09,934 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 12 conjunts are in the unsatisfiable core [2019-08-05 11:04:09,942 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:04:10,016 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 11:04:10,017 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:04:10,043 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:04:10,043 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-05 11:04:10,044 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-08-05 11:04:10,156 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:04:10,157 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2019-08-05 11:04:10,158 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:04:10,183 INFO L567 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2019-08-05 11:04:10,184 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-08-05 11:04:10,185 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2019-08-05 11:04:10,245 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 11:04:10,247 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:04:10,247 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-08-05 11:04:10,251 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 11:04:10,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 11:04:10,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-05 11:04:10,266 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2019-08-05 11:04:10,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:04:10,400 INFO L93 Difference]: Finished difference Result 4 states and 4 transitions. [2019-08-05 11:04:10,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-05 11:04:10,402 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-08-05 11:04:10,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:04:10,410 INFO L225 Difference]: With dead ends: 4 [2019-08-05 11:04:10,410 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 11:04:10,413 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-08-05 11:04:10,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 11:04:10,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 11:04:10,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 11:04:10,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 11:04:10,439 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-08-05 11:04:10,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:04:10,440 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 11:04:10,440 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 11:04:10,440 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 11:04:10,440 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 11:04:10,445 INFO L202 PluginConnector]: Adding new model sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 11:04:10 BoogieIcfgContainer [2019-08-05 11:04:10,445 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 11:04:10,447 INFO L168 Benchmark]: Toolchain (without parser) took 1439.49 ms. Allocated memory was 138.9 MB in the beginning and 179.3 MB in the end (delta: 40.4 MB). Free memory was 106.4 MB in the beginning and 143.5 MB in the end (delta: -37.1 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. [2019-08-05 11:04:10,448 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory is still 108.0 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 11:04:10,449 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.39 ms. Allocated memory is still 138.9 MB. Free memory was 106.4 MB in the beginning and 104.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-08-05 11:04:10,450 INFO L168 Benchmark]: Boogie Preprocessor took 44.42 ms. Allocated memory is still 138.9 MB. Free memory was 104.6 MB in the beginning and 102.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-08-05 11:04:10,451 INFO L168 Benchmark]: RCFGBuilder took 535.42 ms. Allocated memory is still 138.9 MB. Free memory was 102.9 MB in the beginning and 85.1 MB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 7.1 GB. [2019-08-05 11:04:10,452 INFO L168 Benchmark]: TraceAbstraction took 795.34 ms. Allocated memory was 138.9 MB in the beginning and 179.3 MB in the end (delta: 40.4 MB). Free memory was 85.1 MB in the beginning and 143.5 MB in the end (delta: -58.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 11:04:10,456 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 0.21 ms. Allocated memory is still 138.9 MB. Free memory is still 108.0 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 55.39 ms. Allocated memory is still 138.9 MB. Free memory was 106.4 MB in the beginning and 104.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 44.42 ms. Allocated memory is still 138.9 MB. Free memory was 104.6 MB in the beginning and 102.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 535.42 ms. Allocated memory is still 138.9 MB. Free memory was 102.9 MB in the beginning and 85.1 MB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 795.34 ms. Allocated memory was 138.9 MB in the beginning and 179.3 MB in the end (delta: 40.4 MB). Free memory was 85.1 MB in the beginning and 143.5 MB in the end (delta: -58.4 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, 6 locations, 1 error locations. SAFE Result, 0.7s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1 SDtfs, 2 SDslu, 0 SDs, 0 SdLazy, 4 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s 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, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 33 SizeOfPredicates, 7 NumberOfNonLiveVariables, 132 ConjunctsInSsa, 12 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...