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/Arrays/Arrays09.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 11:06:08,682 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 11:06:08,689 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 11:06:08,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 11:06:08,704 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 11:06:08,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 11:06:08,707 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 11:06:08,709 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 11:06:08,712 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 11:06:08,713 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 11:06:08,719 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 11:06:08,719 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 11:06:08,720 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 11:06:08,723 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 11:06:08,724 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 11:06:08,729 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 11:06:08,730 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 11:06:08,730 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 11:06:08,732 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 11:06:08,735 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 11:06:08,737 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 11:06:08,738 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 11:06:08,739 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 11:06:08,740 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 11:06:08,744 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-05 11:06:08,752 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 11:06:08,753 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 11:06:08,754 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 11:06:08,755 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 11:06:08,757 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 11:06:08,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 11:06:08,758 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 11:06:08,758 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 11:06:08,759 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 11:06:08,759 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 11:06:08,762 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 11:06:08,793 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 11:06:08,806 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 11:06:08,809 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 11:06:08,811 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 11:06:08,812 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 11:06:08,812 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/quantifier/Arrays/Arrays09.bpl [2019-08-05 11:06:08,813 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/quantifier/Arrays/Arrays09.bpl' [2019-08-05 11:06:08,847 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 11:06:08,849 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 11:06:08,849 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 11:06:08,850 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 11:06:08,850 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 11:06:08,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "Arrays09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:06:08" (1/1) ... [2019-08-05 11:06:08,876 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "Arrays09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:06:08" (1/1) ... [2019-08-05 11:06:08,881 WARN L165 Inliner]: Program contained no entry procedure! [2019-08-05 11:06:08,882 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-08-05 11:06:08,882 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-08-05 11:06:08,884 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 11:06:08,885 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 11:06:08,885 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 11:06:08,885 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 11:06:08,895 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Arrays09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:06:08" (1/1) ... [2019-08-05 11:06:08,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Arrays09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:06:08" (1/1) ... [2019-08-05 11:06:08,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Arrays09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:06:08" (1/1) ... [2019-08-05 11:06:08,897 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Arrays09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:06:08" (1/1) ... [2019-08-05 11:06:08,900 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Arrays09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:06:08" (1/1) ... [2019-08-05 11:06:08,904 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Arrays09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:06:08" (1/1) ... [2019-08-05 11:06:08,905 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Arrays09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:06:08" (1/1) ... [2019-08-05 11:06:08,906 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 11:06:08,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 11:06:08,907 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 11:06:08,907 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 11:06:08,908 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Arrays09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:06:08" (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 11:06:08,972 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-05 11:06:08,973 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-05 11:06:09,273 INFO L275 CfgBuilder]: Using library mode [2019-08-05 11:06:09,274 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 11:06:09,275 INFO L202 PluginConnector]: Adding new model Arrays09.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:06:09 BoogieIcfgContainer [2019-08-05 11:06:09,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 11:06:09,276 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 11:06:09,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 11:06:09,279 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 11:06:09,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Arrays09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:06:08" (1/2) ... [2019-08-05 11:06:09,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ce9e2ee and model type Arrays09.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 11:06:09, skipping insertion in model container [2019-08-05 11:06:09,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Arrays09.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:06:09" (2/2) ... [2019-08-05 11:06:09,283 INFO L109 eAbstractionObserver]: Analyzing ICFG Arrays09.bpl [2019-08-05 11:06:09,292 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 11:06:09,300 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-08-05 11:06:09,314 INFO L252 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-08-05 11:06:09,337 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 11:06:09,338 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 11:06:09,338 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 11:06:09,338 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 11:06:09,339 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 11:06:09,339 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 11:06:09,339 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 11:06:09,339 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 11:06:09,339 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 11:06:09,352 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2019-08-05 11:06:09,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-08-05 11:06:09,359 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:06:09,360 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-08-05 11:06:09,363 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT, mainErr1ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:06:09,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:06:09,369 INFO L82 PathProgramCache]: Analyzing trace with hash 29920, now seen corresponding path program 1 times [2019-08-05 11:06:09,414 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:06:09,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:06:09,456 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-08-05 11:06:09,460 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:06:09,932 WARN L188 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 29 [2019-08-05 11:06:09,933 INFO L341 Elim1Store]: treesize reduction 30, result has 61.0 percent of original size [2019-08-05 11:06:09,934 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 18 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 21 treesize of output 52 [2019-08-05 11:06:09,935 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:06:10,189 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 30 [2019-08-05 11:06:10,190 INFO L567 ElimStorePlain]: treesize reduction 10, result has 81.8 percent of original size [2019-08-05 11:06:10,191 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:06:10,192 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:06:10,194 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:06:10,196 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:06:10,201 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 11:06:10,202 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:45 [2019-08-05 11:06:10,203 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:06:10,203 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:06:10,205 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:06:10,206 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:06:10,320 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:06:10,321 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:06:10,323 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:06:10,324 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:06:10,375 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 11:06:10,377 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:06:10,377 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-08-05 11:06:10,381 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 11:06:10,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 11:06:10,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 11:06:10,408 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2019-08-05 11:06:10,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:06:10,543 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-08-05 11:06:10,543 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 11:06:10,545 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-08-05 11:06:10,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:06:10,555 INFO L225 Difference]: With dead ends: 9 [2019-08-05 11:06:10,556 INFO L226 Difference]: Without dead ends: 8 [2019-08-05 11:06:10,558 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 11:06:10,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-08-05 11:06:10,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-08-05 11:06:10,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-08-05 11:06:10,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-08-05 11:06:10,591 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 3 [2019-08-05 11:06:10,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:06:10,592 INFO L475 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-08-05 11:06:10,592 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 11:06:10,592 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-08-05 11:06:10,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-08-05 11:06:10,593 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:06:10,593 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2019-08-05 11:06:10,593 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT, mainErr1ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:06:10,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:06:10,594 INFO L82 PathProgramCache]: Analyzing trace with hash 28754210, now seen corresponding path program 1 times [2019-08-05 11:06:10,595 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:06:10,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:06:10,615 WARN L254 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 7 conjunts are in the unsatisfiable core [2019-08-05 11:06:10,616 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:06:10,642 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:06:10,650 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:06:10,675 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:06:10,683 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:06:10,687 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 22 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2019-08-05 11:06:10,687 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:06:10,726 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:06:10,727 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 11:06:10,728 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:28, output treesize:32 [2019-08-05 11:06:10,889 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 11:06:10,889 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 11:06:10,889 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2019-08-05 11:06:10,891 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 11:06:10,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 11:06:10,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-05 11:06:10,892 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 4 states. [2019-08-05 11:06:11,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:06:11,063 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2019-08-05 11:06:11,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-05 11:06:11,064 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-08-05 11:06:11,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:06:11,065 INFO L225 Difference]: With dead ends: 10 [2019-08-05 11:06:11,065 INFO L226 Difference]: Without dead ends: 10 [2019-08-05 11:06:11,066 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-05 11:06:11,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-08-05 11:06:11,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-08-05 11:06:11,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-08-05 11:06:11,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-08-05 11:06:11,068 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2019-08-05 11:06:11,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:06:11,069 INFO L475 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2019-08-05 11:06:11,069 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 11:06:11,069 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-08-05 11:06:11,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-08-05 11:06:11,070 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:06:11,070 INFO L399 BasicCegarLoop]: trace histogram [3, 2, 1, 1] [2019-08-05 11:06:11,070 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONASSERT, mainErr1ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:06:11,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:06:11,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1862993124, now seen corresponding path program 2 times [2019-08-05 11:06:11,072 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:06:11,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:06:11,099 WARN L254 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 9 conjunts are in the unsatisfiable core [2019-08-05 11:06:11,100 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:06:11,127 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:06:11,129 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:06:11,131 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:06:11,134 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:06:11,141 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 22 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2019-08-05 11:06:11,141 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:06:11,175 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:06:11,176 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 11:06:11,176 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:28, output treesize:32 [2019-08-05 11:06:11,378 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 11:06:11,378 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 11:06:11,378 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2019-08-05 11:06:11,379 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-08-05 11:06:11,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-08-05 11:06:11,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-08-05 11:06:11,379 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 5 states. [2019-08-05 11:06:11,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:06:11,485 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2019-08-05 11:06:11,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-08-05 11:06:11,486 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-08-05 11:06:11,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:06:11,487 INFO L225 Difference]: With dead ends: 12 [2019-08-05 11:06:11,487 INFO L226 Difference]: Without dead ends: 12 [2019-08-05 11:06:11,488 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-08-05 11:06:11,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-08-05 11:06:11,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-08-05 11:06:11,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-08-05 11:06:11,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-08-05 11:06:11,491 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 7 [2019-08-05 11:06:11,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:06:11,491 INFO L475 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-08-05 11:06:11,491 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-08-05 11:06:11,492 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-08-05 11:06:11,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-08-05 11:06:11,492 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:06:11,492 INFO L399 BasicCegarLoop]: trace histogram [4, 3, 1, 1] [2019-08-05 11:06:11,493 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONASSERT, mainErr1ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:06:11,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:06:11,493 INFO L82 PathProgramCache]: Analyzing trace with hash -664969178, now seen corresponding path program 3 times [2019-08-05 11:06:11,494 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:06:11,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:06:11,514 WARN L254 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 11 conjunts are in the unsatisfiable core [2019-08-05 11:06:11,515 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:06:11,535 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:06:11,543 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:06:11,546 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:06:11,554 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:06:11,561 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 22 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2019-08-05 11:06:11,561 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:06:11,618 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:06:11,620 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 11:06:11,621 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:28, output treesize:32 [2019-08-05 11:06:11,813 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2019-08-05 11:06:12,021 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 11:06:12,021 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 11:06:12,022 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2019-08-05 11:06:12,022 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-08-05 11:06:12,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-08-05 11:06:12,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-08-05 11:06:12,023 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 6 states. [2019-08-05 11:06:12,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:06:12,132 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2019-08-05 11:06:12,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-08-05 11:06:12,133 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2019-08-05 11:06:12,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:06:12,134 INFO L225 Difference]: With dead ends: 14 [2019-08-05 11:06:12,134 INFO L226 Difference]: Without dead ends: 14 [2019-08-05 11:06:12,134 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-08-05 11:06:12,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-08-05 11:06:12,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-08-05 11:06:12,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-08-05 11:06:12,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2019-08-05 11:06:12,137 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 9 [2019-08-05 11:06:12,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:06:12,138 INFO L475 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2019-08-05 11:06:12,138 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-08-05 11:06:12,138 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2019-08-05 11:06:12,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-08-05 11:06:12,139 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:06:12,139 INFO L399 BasicCegarLoop]: trace histogram [5, 4, 1, 1] [2019-08-05 11:06:12,139 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONASSERT, mainErr1ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:06:12,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:06:12,139 INFO L82 PathProgramCache]: Analyzing trace with hash 914748136, now seen corresponding path program 4 times [2019-08-05 11:06:12,140 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:06:12,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:06:12,169 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 10 conjunts are in the unsatisfiable core [2019-08-05 11:06:12,170 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:06:12,196 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 19 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2019-08-05 11:06:12,196 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:06:12,289 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:06:12,290 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-05 11:06:12,290 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:25, output treesize:29 [2019-08-05 11:06:12,620 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2019-08-05 11:06:12,622 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 11:06:12,622 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:06:12,622 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-08-05 11:06:12,623 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-08-05 11:06:12,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-08-05 11:06:12,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-08-05 11:06:12,624 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 8 states. [2019-08-05 11:06:12,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:06:12,703 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2019-08-05 11:06:12,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-08-05 11:06:12,704 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-08-05 11:06:12,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:06:12,705 INFO L225 Difference]: With dead ends: 12 [2019-08-05 11:06:12,705 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 11:06:12,706 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-08-05 11:06:12,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 11:06:12,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 11:06:12,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 11:06:12,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 11:06:12,707 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-08-05 11:06:12,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:06:12,708 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 11:06:12,708 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-08-05 11:06:12,708 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 11:06:12,708 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 11:06:12,712 INFO L202 PluginConnector]: Adding new model Arrays09.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 11:06:12 BoogieIcfgContainer [2019-08-05 11:06:12,712 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 11:06:12,713 INFO L168 Benchmark]: Toolchain (without parser) took 3865.17 ms. Allocated memory was 134.7 MB in the beginning and 197.7 MB in the end (delta: 62.9 MB). Free memory was 111.1 MB in the beginning and 175.5 MB in the end (delta: -64.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 11:06:12,714 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 134.7 MB. Free memory is still 112.0 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 11:06:12,715 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.11 ms. Allocated memory is still 134.7 MB. Free memory was 111.1 MB in the beginning and 109.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-08-05 11:06:12,716 INFO L168 Benchmark]: Boogie Preprocessor took 21.61 ms. Allocated memory is still 134.7 MB. Free memory was 109.0 MB in the beginning and 107.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-08-05 11:06:12,717 INFO L168 Benchmark]: RCFGBuilder took 367.95 ms. Allocated memory is still 134.7 MB. Free memory was 107.8 MB in the beginning and 98.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-08-05 11:06:12,718 INFO L168 Benchmark]: TraceAbstraction took 3435.89 ms. Allocated memory was 134.7 MB in the beginning and 197.7 MB in the end (delta: 62.9 MB). Free memory was 97.9 MB in the beginning and 175.5 MB in the end (delta: -77.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 11:06:12,722 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 134.7 MB. Free memory is still 112.0 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 35.11 ms. Allocated memory is still 134.7 MB. Free memory was 111.1 MB in the beginning and 109.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 21.61 ms. Allocated memory is still 134.7 MB. Free memory was 109.0 MB in the beginning and 107.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 367.95 ms. Allocated memory is still 134.7 MB. Free memory was 107.8 MB in the beginning and 98.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3435.89 ms. Allocated memory was 134.7 MB in the beginning and 197.7 MB in the end (delta: 62.9 MB). Free memory was 97.9 MB in the beginning and 175.5 MB in the end (delta: -77.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 26]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 29]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 2 error locations. SAFE Result, 3.3s OverallTime, 5 OverallIterations, 5 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 18 SDtfs, 2 SDslu, 0 SDs, 0 SdLazy, 132 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=4, 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 30 ConstructedInterpolants, 20 QuantifiedInterpolants, 7502 SizeOfPredicates, 5 NumberOfNonLiveVariables, 85 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 20/40 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...