java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/Pdr/AutomizerBpl-nestedInterpolants.epf -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/INT_add_vs_inc.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ff8eab6 [2018-09-26 08:21:58,468 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 08:21:58,471 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 08:21:58,489 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-09-26 08:21:58,532 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-nestedInterpolants.epf [2018-09-26 08:21:58,542 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 08:21:58,543 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 08:21:58,544 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-26 08:21:58,544 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-09-26 08:21:58,547 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 08:21:58,547 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-09-26 08:21:58,547 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-09-26 08:21:58,547 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 08:21:58,600 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 08:21:58,616 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 08:21:58,623 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 08:21:58,624 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 08:21:58,625 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 08:21:58,626 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/INT_add_vs_inc.bpl [2018-09-26 08:21:58,626 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/INT_add_vs_inc.bpl' [2018-09-26 08:21:58,669 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 08:21:58,672 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 08:21:58,673 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 08:21:58,673 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 08:21:58,674 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 08:21:58,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:21:58" (1/1) ... [2018-09-26 08:21:58,707 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:21:58" (1/1) ... [2018-09-26 08:21:58,711 WARN L165 Inliner]: Program contained no entry procedure! [2018-09-26 08:21:58,712 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-09-26 08:21:58,712 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-09-26 08:21:58,714 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 08:21:58,715 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 08:21:58,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 08:21:58,715 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 08:21:58,726 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:21:58" (1/1) ... [2018-09-26 08:21:58,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:21:58" (1/1) ... [2018-09-26 08:21:58,727 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:21:58" (1/1) ... [2018-09-26 08:21:58,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:21:58" (1/1) ... [2018-09-26 08:21:58,729 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:21:58" (1/1) ... [2018-09-26 08:21:58,734 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:21:58" (1/1) ... [2018-09-26 08:21:58,735 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:21:58" (1/1) ... [2018-09-26 08:21:58,736 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 08:21:58,736 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 08:21:58,736 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 08:21:58,737 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 08:21:58,738 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:21:58" (1/1) ... [2018-09-26 08:21:58,817 INFO L124 BoogieDeclarations]: Specification and implementation of procedure add given in one single declaration [2018-09-26 08:21:58,818 INFO L130 BoogieDeclarations]: Found specification of procedure add [2018-09-26 08:21:58,818 INFO L138 BoogieDeclarations]: Found implementation of procedure add [2018-09-26 08:21:58,952 INFO L343 CfgBuilder]: Using library mode [2018-09-26 08:21:58,953 INFO L202 PluginConnector]: Adding new model INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 08:21:58 BoogieIcfgContainer [2018-09-26 08:21:58,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 08:21:58,955 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 08:21:58,955 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 08:21:58,959 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 08:21:58,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:21:58" (1/2) ... [2018-09-26 08:21:58,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bfd3711 and model type INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 08:21:58, skipping insertion in model container [2018-09-26 08:21:58,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 08:21:58" (2/2) ... [2018-09-26 08:21:58,964 INFO L112 eAbstractionObserver]: Analyzing ICFG INT_add_vs_inc.bpl [2018-09-26 08:21:58,975 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-09-26 08:21:58,988 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-26 08:21:59,043 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 08:21:59,044 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 08:21:59,044 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 08:21:59,044 INFO L383 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-09-26 08:21:59,045 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 08:21:59,045 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 08:21:59,045 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 08:21:59,045 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 08:21:59,046 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 08:21:59,062 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2018-09-26 08:21:59,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-09-26 08:21:59,071 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:21:59,073 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-09-26 08:21:59,074 INFO L423 AbstractCegarLoop]: === Iteration 1 === [addErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:21:59,080 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:21:59,081 INFO L82 PathProgramCache]: Analyzing trace with hash 29984, now seen corresponding path program 1 times [2018-09-26 08:21:59,088 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:21:59,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 08:21:59,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 08:21:59,262 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 08:21:59,263 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-26 08:21:59,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-26 08:21:59,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-26 08:21:59,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-26 08:21:59,299 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 4 states. [2018-09-26 08:21:59,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:21:59,382 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2018-09-26 08:21:59,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-26 08:21:59,384 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2018-09-26 08:21:59,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:21:59,395 INFO L225 Difference]: With dead ends: 9 [2018-09-26 08:21:59,396 INFO L226 Difference]: Without dead ends: 5 [2018-09-26 08:21:59,400 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-09-26 08:21:59,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2018-09-26 08:21:59,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2018-09-26 08:21:59,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-09-26 08:21:59,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2018-09-26 08:21:59,445 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2018-09-26 08:21:59,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:21:59,445 INFO L480 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2018-09-26 08:21:59,445 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-26 08:21:59,446 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2018-09-26 08:21:59,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-26 08:21:59,446 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:21:59,446 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-09-26 08:21:59,447 INFO L423 AbstractCegarLoop]: === Iteration 2 === [addErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:21:59,447 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:21:59,447 INFO L82 PathProgramCache]: Analyzing trace with hash 927558, now seen corresponding path program 1 times [2018-09-26 08:21:59,447 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:21:59,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 08:21:59,531 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 08:21:59,532 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-09-26 08:21:59,532 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-09-26 08:21:59,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-26 08:21:59,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-26 08:21:59,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-09-26 08:21:59,535 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 5 states. [2018-09-26 08:21:59,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:21:59,597 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-09-26 08:21:59,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-26 08:21:59,597 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2018-09-26 08:21:59,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:21:59,598 INFO L225 Difference]: With dead ends: 8 [2018-09-26 08:21:59,598 INFO L226 Difference]: Without dead ends: 6 [2018-09-26 08:21:59,599 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-26 08:21:59,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2018-09-26 08:21:59,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-09-26 08:21:59,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-09-26 08:21:59,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-09-26 08:21:59,603 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2018-09-26 08:21:59,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:21:59,604 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2018-09-26 08:21:59,604 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-26 08:21:59,604 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2018-09-26 08:21:59,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-09-26 08:21:59,605 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:21:59,605 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2018-09-26 08:21:59,605 INFO L423 AbstractCegarLoop]: === Iteration 3 === [addErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:21:59,606 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:21:59,606 INFO L82 PathProgramCache]: Analyzing trace with hash 28752352, now seen corresponding path program 2 times [2018-09-26 08:21:59,606 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:21:59,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 08:21:59,717 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 08:21:59,717 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-09-26 08:21:59,719 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2018-09-26 08:21:59,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-26 08:21:59,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-26 08:21:59,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-26 08:21:59,721 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 6 states. [2018-09-26 08:21:59,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:21:59,856 INFO L93 Difference]: Finished difference Result 6 states and 6 transitions. [2018-09-26 08:21:59,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-26 08:21:59,856 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2018-09-26 08:21:59,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:21:59,857 INFO L225 Difference]: With dead ends: 6 [2018-09-26 08:21:59,857 INFO L226 Difference]: Without dead ends: 0 [2018-09-26 08:21:59,858 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-26 08:21:59,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-26 08:21:59,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-26 08:21:59,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-26 08:21:59,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-26 08:21:59,859 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2018-09-26 08:21:59,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:21:59,859 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-26 08:21:59,859 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-26 08:21:59,859 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-26 08:21:59,860 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-26 08:21:59,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-26 08:21:59,907 INFO L429 ceAbstractionStarter]: At program point addEXIT(lines 8 24) the Hoare annotation is: true [2018-09-26 08:21:59,908 INFO L422 ceAbstractionStarter]: At program point L17-1(lines 17 21) the Hoare annotation is: (let ((.cse0 (+ add_x add_y0)) (.cse1 (+ add_y add_result))) (and (<= add_result .cse0) (<= .cse1 .cse0) (<= .cse0 .cse1))) [2018-09-26 08:21:59,908 INFO L422 ceAbstractionStarter]: At program point L23(line 23) the Hoare annotation is: (let ((.cse0 (+ add_x add_y0))) (and (<= add_result .cse0) (<= .cse0 add_result))) [2018-09-26 08:21:59,909 INFO L422 ceAbstractionStarter]: At program point addErr0ASSERT_VIOLATIONASSERT(line 23) the Hoare annotation is: false [2018-09-26 08:21:59,909 INFO L429 ceAbstractionStarter]: At program point addENTRY(lines 8 24) the Hoare annotation is: true [2018-09-26 08:21:59,909 INFO L426 ceAbstractionStarter]: For program point addFINAL(lines 8 24) no Hoare annotation was computed. [2018-09-26 08:21:59,922 INFO L202 PluginConnector]: Adding new model INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.09 08:21:59 BoogieIcfgContainer [2018-09-26 08:21:59,922 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-26 08:21:59,923 INFO L168 Benchmark]: Toolchain (without parser) took 1253.21 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-09-26 08:21:59,925 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 08:21:59,926 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.17 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 08:21:59,927 INFO L168 Benchmark]: Boogie Preprocessor took 21.07 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 08:21:59,928 INFO L168 Benchmark]: RCFGBuilder took 217.35 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-26 08:21:59,929 INFO L168 Benchmark]: TraceAbstraction took 967.25 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-26 08:21:59,935 INFO L336 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 0.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 41.17 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 21.07 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 217.35 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 967.25 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 23]: 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 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (result <= x + y0 && y + result <= x + y0) && x + y0 <= y + result - ProcedureContractResult [Line: 8]: Procedure Contract for add Derived contract for procedure add: true - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. SAFE Result, 0.8s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5 SDtfs, 6 SDslu, 1 SDs, 0 SdLazy, 27 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=2, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 34 HoareAnnotationTreeSize, 5 FomulaSimplifications, 68 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 29 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 381 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/INT_add_vs_inc.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-26_08-21-59-954.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/INT_add_vs_inc.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-26_08-21-59-954.csv Received shutdown request...