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/quantifier/regression/bpl/BugPrenexNormalForm01.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 11:07:02,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 11:07:02,533 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 11:07:02,546 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 11:07:02,546 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 11:07:02,547 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 11:07:02,549 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 11:07:02,551 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 11:07:02,553 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 11:07:02,554 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 11:07:02,555 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 11:07:02,556 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 11:07:02,556 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 11:07:02,557 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 11:07:02,558 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 11:07:02,560 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 11:07:02,561 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 11:07:02,562 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 11:07:02,564 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 11:07:02,567 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 11:07:02,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 11:07:02,571 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 11:07:02,572 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 11:07:02,573 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 11:07:02,576 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 11:07:02,577 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 11:07:02,577 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 11:07:02,578 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 11:07:02,579 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 11:07:02,580 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 11:07:02,580 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 11:07:02,581 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 11:07:02,582 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 11:07:02,583 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 11:07:02,585 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 11:07:02,585 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 11:07:02,586 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 11:07:02,586 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 11:07:02,586 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 11:07:02,588 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 11:07:02,589 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 11:07:02,617 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 11:07:02,638 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 11:07:02,641 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 11:07:02,644 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 11:07:02,645 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 11:07:02,649 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/quantifier/regression/bpl/BugPrenexNormalForm01.bpl [2019-08-05 11:07:02,649 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/quantifier/regression/bpl/BugPrenexNormalForm01.bpl' [2019-08-05 11:07:02,682 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 11:07:02,684 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 11:07:02,685 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 11:07:02,685 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 11:07:02,685 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 11:07:02,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "BugPrenexNormalForm01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:07:02" (1/1) ... [2019-08-05 11:07:02,715 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "BugPrenexNormalForm01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:07:02" (1/1) ... [2019-08-05 11:07:02,725 WARN L165 Inliner]: Program contained no entry procedure! [2019-08-05 11:07:02,726 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-08-05 11:07:02,726 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-08-05 11:07:02,728 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 11:07:02,729 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 11:07:02,729 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 11:07:02,729 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 11:07:02,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "BugPrenexNormalForm01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:07:02" (1/1) ... [2019-08-05 11:07:02,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "BugPrenexNormalForm01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:07:02" (1/1) ... [2019-08-05 11:07:02,741 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "BugPrenexNormalForm01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:07:02" (1/1) ... [2019-08-05 11:07:02,741 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "BugPrenexNormalForm01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:07:02" (1/1) ... [2019-08-05 11:07:02,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "BugPrenexNormalForm01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:07:02" (1/1) ... [2019-08-05 11:07:02,748 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "BugPrenexNormalForm01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:07:02" (1/1) ... [2019-08-05 11:07:02,749 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "BugPrenexNormalForm01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:07:02" (1/1) ... [2019-08-05 11:07:02,750 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 11:07:02,751 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 11:07:02,751 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 11:07:02,751 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 11:07:02,752 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "BugPrenexNormalForm01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:07:02" (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 11:07:02,817 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-05 11:07:02,817 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-05 11:07:02,973 INFO L275 CfgBuilder]: Using library mode [2019-08-05 11:07:02,973 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-08-05 11:07:02,975 INFO L202 PluginConnector]: Adding new model BugPrenexNormalForm01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:07:02 BoogieIcfgContainer [2019-08-05 11:07:02,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 11:07:02,977 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 11:07:02,977 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 11:07:02,980 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 11:07:02,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "BugPrenexNormalForm01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:07:02" (1/2) ... [2019-08-05 11:07:02,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@273eb0fc and model type BugPrenexNormalForm01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 11:07:02, skipping insertion in model container [2019-08-05 11:07:02,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "BugPrenexNormalForm01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:07:02" (2/2) ... [2019-08-05 11:07:02,984 INFO L109 eAbstractionObserver]: Analyzing ICFG BugPrenexNormalForm01.bpl [2019-08-05 11:07:02,994 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 11:07:03,002 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 11:07:03,020 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 11:07:03,048 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 11:07:03,049 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 11:07:03,049 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 11:07:03,050 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 11:07:03,050 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 11:07:03,050 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 11:07:03,050 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 11:07:03,050 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 11:07:03,050 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 11:07:03,066 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-08-05 11:07:03,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-05 11:07:03,075 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:07:03,076 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-08-05 11:07:03,079 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:07:03,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:07:03,086 INFO L82 PathProgramCache]: Analyzing trace with hash 928647, now seen corresponding path program 1 times [2019-08-05 11:07:03,145 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:07:03,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:07:03,202 WARN L254 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2019-08-05 11:07:03,208 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:07:03,403 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2019-08-05 11:07:03,405 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:07:03,498 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:07:03,499 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-05 11:07:03,500 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2019-08-05 11:07:03,540 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 11:07:03,544 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:07:03,544 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-08-05 11:07:03,549 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-08-05 11:07:03,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-08-05 11:07:03,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-08-05 11:07:03,563 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 5 states. [2019-08-05 11:07:03,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:07:03,643 INFO L93 Difference]: Finished difference Result 5 states and 6 transitions. [2019-08-05 11:07:03,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-08-05 11:07:03,645 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2019-08-05 11:07:03,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:07:03,652 INFO L225 Difference]: With dead ends: 5 [2019-08-05 11:07:03,653 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 11:07:03,655 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-08-05 11:07:03,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 11:07:03,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 11:07:03,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 11:07:03,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 11:07:03,682 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-08-05 11:07:03,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:07:03,682 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 11:07:03,682 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-08-05 11:07:03,683 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 11:07:03,683 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 11:07:03,689 INFO L202 PluginConnector]: Adding new model BugPrenexNormalForm01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 11:07:03 BoogieIcfgContainer [2019-08-05 11:07:03,689 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 11:07:03,692 INFO L168 Benchmark]: Toolchain (without parser) took 1006.99 ms. Allocated memory is still 139.5 MB. Free memory was 109.1 MB in the beginning and 72.5 MB in the end (delta: 36.6 MB). Peak memory consumption was 36.6 MB. Max. memory is 7.1 GB. [2019-08-05 11:07:03,693 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.36 ms. Allocated memory is still 139.5 MB. Free memory was 110.3 MB in the beginning and 110.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-08-05 11:07:03,694 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.67 ms. Allocated memory is still 139.5 MB. Free memory was 109.1 MB in the beginning and 107.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-08-05 11:07:03,695 INFO L168 Benchmark]: Boogie Preprocessor took 21.18 ms. Allocated memory is still 139.5 MB. Free memory was 107.1 MB in the beginning and 106.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. [2019-08-05 11:07:03,696 INFO L168 Benchmark]: RCFGBuilder took 224.42 ms. Allocated memory is still 139.5 MB. Free memory was 106.0 MB in the beginning and 97.2 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. [2019-08-05 11:07:03,697 INFO L168 Benchmark]: TraceAbstraction took 712.40 ms. Allocated memory is still 139.5 MB. Free memory was 97.0 MB in the beginning and 72.5 MB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2019-08-05 11:07:03,702 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 0.36 ms. Allocated memory is still 139.5 MB. Free memory was 110.3 MB in the beginning and 110.1 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 43.67 ms. Allocated memory is still 139.5 MB. Free memory was 109.1 MB in the beginning and 107.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 21.18 ms. Allocated memory is still 139.5 MB. Free memory was 107.1 MB in the beginning and 106.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 224.42 ms. Allocated memory is still 139.5 MB. Free memory was 106.0 MB in the beginning and 97.2 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 712.40 ms. Allocated memory is still 139.5 MB. Free memory was 97.0 MB in the beginning and 72.5 MB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 25]: 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, 0.6s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3 SDtfs, 5 SDslu, 6 SDs, 0 SdLazy, 7 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 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, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 39 SizeOfPredicates, 2 NumberOfNonLiveVariables, 10 ConjunctsInSsa, 6 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...