java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/programs/regression/bpl/AutomizerBpl-nestedInterpolants.epf -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/GeometricalIntegerCakeWithArray.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-56c9370 [2018-07-23 15:34:39,670 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 15:34:39,672 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 15:34:39,685 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 15:34:39,685 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 15:34:39,686 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 15:34:39,688 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 15:34:39,689 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 15:34:39,691 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 15:34:39,692 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 15:34:39,693 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-07-23 15:34:39,709 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 15:34:39,710 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 15:34:39,710 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 15:34:39,712 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 15:34:39,712 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 15:34:39,713 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 15:34:39,714 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 15:34:39,715 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 15:34:39,715 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-23 15:34:39,718 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/AutomizerBpl-nestedInterpolants.epf [2018-07-23 15:34:39,732 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 15:34:39,732 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 15:34:39,734 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 15:34:39,734 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-23 15:34:39,734 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 15:34:39,735 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-07-23 15:34:39,735 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 15:34:39,735 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 15:34:39,783 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 15:34:39,802 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 15:34:39,808 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 15:34:39,810 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 15:34:39,811 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 15:34:39,811 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/GeometricalIntegerCakeWithArray.bpl [2018-07-23 15:34:39,812 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/GeometricalIntegerCakeWithArray.bpl' [2018-07-23 15:34:39,874 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 15:34:39,876 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 15:34:39,877 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 15:34:39,878 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 15:34:39,878 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 15:34:39,911 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:34:39" (1/1) ... [2018-07-23 15:34:39,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:34:39" (1/1) ... [2018-07-23 15:34:39,929 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:34:39" (1/1) ... [2018-07-23 15:34:39,930 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:34:39" (1/1) ... [2018-07-23 15:34:39,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:34:39" (1/1) ... [2018-07-23 15:34:39,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:34:39" (1/1) ... [2018-07-23 15:34:39,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:34:39" (1/1) ... [2018-07-23 15:34:39,944 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 15:34:39,945 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 15:34:39,945 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 15:34:39,945 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 15:34:39,946 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:34:39" (1/1) ... [2018-07-23 15:34:40,043 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-07-23 15:34:40,043 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 15:34:40,043 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 15:34:40,207 INFO L258 CfgBuilder]: Using library mode [2018-07-23 15:34:40,208 INFO L202 PluginConnector]: Adding new model GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:34:40 BoogieIcfgContainer [2018-07-23 15:34:40,208 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 15:34:40,210 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 15:34:40,210 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 15:34:40,213 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 15:34:40,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:34:39" (1/2) ... [2018-07-23 15:34:40,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f59ef1 and model type GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 03:34:40, skipping insertion in model container [2018-07-23 15:34:40,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:34:40" (2/2) ... [2018-07-23 15:34:40,218 INFO L112 eAbstractionObserver]: Analyzing ICFG GeometricalIntegerCakeWithArray.bpl [2018-07-23 15:34:40,227 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-07-23 15:34:40,235 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-07-23 15:34:40,283 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 15:34:40,283 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 15:34:40,284 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 15:34:40,284 INFO L375 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-07-23 15:34:40,284 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 15:34:40,284 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 15:34:40,284 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 15:34:40,285 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 15:34:40,285 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 15:34:40,300 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2018-07-23 15:34:40,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-07-23 15:34:40,309 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:34:40,310 INFO L353 BasicCegarLoop]: trace histogram [1, 1] [2018-07-23 15:34:40,310 INFO L414 AbstractCegarLoop]: === Iteration 1 === [mainErr0AssertViolationINVARIANTandASSERT, mainErr1AssertViolationASSERT]=== [2018-07-23 15:34:40,316 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-07-23 15:34:40,323 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:34:40,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 15:34:40,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 15:34:40,478 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 15:34:40,478 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-07-23 15:34:40,482 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 15:34:40,494 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 15:34:40,495 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 15:34:40,498 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 3 states. [2018-07-23 15:34:40,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:34:40,579 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2018-07-23 15:34:40,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 15:34:40,581 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2018-07-23 15:34:40,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:34:40,595 INFO L225 Difference]: With dead ends: 15 [2018-07-23 15:34:40,596 INFO L226 Difference]: Without dead ends: 8 [2018-07-23 15:34:40,602 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 15:34:40,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-07-23 15:34:40,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-07-23 15:34:40,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-07-23 15:34:40,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-07-23 15:34:40,649 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 2 [2018-07-23 15:34:40,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:34:40,649 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2018-07-23 15:34:40,650 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 15:34:40,650 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-07-23 15:34:40,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-23 15:34:40,650 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:34:40,651 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-23 15:34:40,651 INFO L414 AbstractCegarLoop]: === Iteration 2 === [mainErr0AssertViolationINVARIANTandASSERT, mainErr1AssertViolationASSERT]=== [2018-07-23 15:34:40,651 INFO L82 PathProgramCache]: Analyzing trace with hash 926592, now seen corresponding path program 1 times [2018-07-23 15:34:40,652 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:34:40,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 15:34:40,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 15:34:40,891 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 15:34:40,891 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-07-23 15:34:40,893 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 15:34:40,893 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 15:34:40,893 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-23 15:34:40,896 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 5 states. [2018-07-23 15:34:40,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:34:40,995 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-07-23 15:34:40,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-23 15:34:40,995 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2018-07-23 15:34:40,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:34:40,996 INFO L225 Difference]: With dead ends: 8 [2018-07-23 15:34:40,999 INFO L226 Difference]: Without dead ends: 7 [2018-07-23 15:34:41,001 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-07-23 15:34:41,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-07-23 15:34:41,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-07-23 15:34:41,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-23 15:34:41,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-23 15:34:41,011 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-07-23 15:34:41,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:34:41,012 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-23 15:34:41,012 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 15:34:41,012 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-23 15:34:41,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-23 15:34:41,013 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:34:41,013 INFO L353 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-07-23 15:34:41,014 INFO L414 AbstractCegarLoop]: === Iteration 3 === [mainErr0AssertViolationINVARIANTandASSERT, mainErr1AssertViolationASSERT]=== [2018-07-23 15:34:41,014 INFO L82 PathProgramCache]: Analyzing trace with hash 890456194, now seen corresponding path program 1 times [2018-07-23 15:34:41,014 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:34:41,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 15:34:41,066 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-07-23 15:34:41,067 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 15:34:41,069 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 15:34:41,070 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 15:34:41,070 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 15:34:41,070 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 15:34:41,071 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 4 states. [2018-07-23 15:34:41,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:34:41,103 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2018-07-23 15:34:41,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 15:34:41,103 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2018-07-23 15:34:41,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:34:41,104 INFO L225 Difference]: With dead ends: 7 [2018-07-23 15:34:41,104 INFO L226 Difference]: Without dead ends: 0 [2018-07-23 15:34:41,106 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 15:34:41,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-23 15:34:41,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-23 15:34:41,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-23 15:34:41,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-23 15:34:41,107 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2018-07-23 15:34:41,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:34:41,108 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-23 15:34:41,108 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 15:34:41,108 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-23 15:34:41,108 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-23 15:34:41,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-23 15:34:41,274 INFO L417 ceAbstractionStarter]: At program point mainErr0AssertViolationINVARIANTandASSERT(line 19) the Hoare annotation is: false [2018-07-23 15:34:41,276 INFO L417 ceAbstractionStarter]: At program point mainErr1AssertViolationASSERT(line 25) the Hoare annotation is: false [2018-07-23 15:34:41,277 INFO L417 ceAbstractionStarter]: At program point L25(line 25) the Hoare annotation is: (let ((.cse0 (div main_init 2)) (.cse1 (select main_m main_cakeLeft))) (and (<= .cse0 .cse1) (or (let ((.cse2 (select main_m main_eat))) (and (<= 0 .cse2) (<= (+ .cse0 .cse2) .cse1))) (= main_cakeLeft main_eat)))) [2018-07-23 15:34:41,277 INFO L424 ceAbstractionStarter]: At program point mainEXIT(lines 8 28) the Hoare annotation is: true [2018-07-23 15:34:41,277 INFO L424 ceAbstractionStarter]: At program point mainENTRY(lines 8 28) the Hoare annotation is: true [2018-07-23 15:34:41,278 INFO L417 ceAbstractionStarter]: At program point L18(lines 18 26) the Hoare annotation is: (or (let ((.cse0 (select main_m main_eat))) (and (<= 0 .cse0) (<= (+ (div main_init 2) .cse0) (select main_m main_cakeLeft)))) (= main_cakeLeft main_eat)) [2018-07-23 15:34:41,278 INFO L417 ceAbstractionStarter]: At program point L18'(lines 18 23) the Hoare annotation is: (or (let ((.cse0 (select main_m main_eat))) (and (<= 0 .cse0) (<= (+ (div main_init 2) .cse0) (select main_m main_cakeLeft)))) (= main_cakeLeft main_eat)) [2018-07-23 15:34:41,278 INFO L424 ceAbstractionStarter]: At program point L24'(lines 8 28) the Hoare annotation is: true [2018-07-23 15:34:41,290 INFO L202 PluginConnector]: Adding new model GeometricalIntegerCakeWithArray.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 03:34:41 BoogieIcfgContainer [2018-07-23 15:34:41,290 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 15:34:41,291 INFO L168 Benchmark]: Toolchain (without parser) took 1416.64 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 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. [2018-07-23 15:34:41,294 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 15:34:41,295 INFO L168 Benchmark]: Boogie Preprocessor took 66.85 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 15:34:41,297 INFO L168 Benchmark]: RCFGBuilder took 263.88 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 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. [2018-07-23 15:34:41,298 INFO L168 Benchmark]: TraceAbstraction took 1080.42 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. [2018-07-23 15:34:41,305 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 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 66.85 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 263.88 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 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 1080.42 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: 19]: loop invariant is valid and assertion always holds For all program executions holds that loop invariant is valid and assertion always holds at this location - PositiveResult [Line: 25]: 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 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: (0 <= m[eat] && init / 2 + m[eat] <= m[cakeLeft]) || cakeLeft == eat - ProcedureContractResult [Line: 8]: Procedure Contract for main Derived contract for procedure main: true - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 2 error locations. SAFE Result, 1.0s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 6 SDtfs, 12 SDslu, 1 SDs, 0 SdLazy, 28 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 13 NumberOfFragments, 76 HoareAnnotationTreeSize, 8 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 104 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 307 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 2/3 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/GeometricalIntegerCakeWithArray.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-07-23_15-34-41-327.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/GeometricalIntegerCakeWithArray.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_15-34-41-327.csv Received shutdown request...