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/20170319-ConjunctivePathPrograms/num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-56c9370 [2018-07-23 15:19:46,779 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 15:19:46,781 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 15:19:46,793 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 15:19:46,794 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 15:19:46,795 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 15:19:46,796 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 15:19:46,798 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 15:19:46,800 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 15:19:46,801 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 15:19:46,802 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 15:19:46,802 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 15:19:46,803 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 15:19:46,804 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 15:19:46,805 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 15:19:46,806 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 15:19:46,807 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 15:19:46,808 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 15:19:46,810 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 15:19:46,812 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 15:19:46,813 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 15:19:46,815 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 15:19:46,817 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-23 15:19:46,826 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 15:19:46,847 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 15:19:46,848 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 15:19:46,849 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 15:19:46,850 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-23 15:19:46,850 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 15:19:46,850 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-07-23 15:19:46,854 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 15:19:46,854 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 15:19:46,917 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 15:19:46,930 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 15:19:46,934 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 15:19:46,936 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 15:19:46,937 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 15:19:46,937 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl [2018-07-23 15:19:46,938 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl' [2018-07-23 15:19:46,991 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 15:19:46,993 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 15:19:46,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 15:19:46,994 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 15:19:46,994 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 15:19:47,023 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:19:46" (1/1) ... [2018-07-23 15:19:47,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:19:46" (1/1) ... [2018-07-23 15:19:47,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:19:46" (1/1) ... [2018-07-23 15:19:47,036 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:19:46" (1/1) ... [2018-07-23 15:19:47,039 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:19:46" (1/1) ... [2018-07-23 15:19:47,041 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:19:46" (1/1) ... [2018-07-23 15:19:47,042 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:19:46" (1/1) ... [2018-07-23 15:19:47,044 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 15:19:47,045 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 15:19:47,046 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 15:19:47,046 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 15:19:47,047 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:19:46" (1/1) ... [2018-07-23 15:19:47,136 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-07-23 15:19:47,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 15:19:47,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 15:19:47,323 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 15:19:47,324 INFO L202 PluginConnector]: Adding new model num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:19:47 BoogieIcfgContainer [2018-07-23 15:19:47,324 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 15:19:47,325 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 15:19:47,325 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 15:19:47,330 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 15:19:47,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:19:46" (1/2) ... [2018-07-23 15:19:47,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14f2a4b7 and model type num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 03:19:47, skipping insertion in model container [2018-07-23 15:19:47,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:19:47" (2/2) ... [2018-07-23 15:19:47,336 INFO L112 eAbstractionObserver]: Analyzing ICFG num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl [2018-07-23 15:19:47,347 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-07-23 15:19:47,356 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 15:19:47,412 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 15:19:47,413 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 15:19:47,413 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 15:19:47,413 INFO L375 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-07-23 15:19:47,414 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 15:19:47,414 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 15:19:47,414 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 15:19:47,414 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 15:19:47,415 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 15:19:47,427 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2018-07-23 15:19:47,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-07-23 15:19:47,437 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:19:47,438 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-07-23 15:19:47,439 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:19:47,445 INFO L82 PathProgramCache]: Analyzing trace with hash 29955, now seen corresponding path program 1 times [2018-07-23 15:19:47,451 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:19:47,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 15:19:47,519 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 15:19:47,522 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 15:19:47,522 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-23 15:19:47,527 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 15:19:47,540 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 15:19:47,541 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 15:19:47,543 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 3 states. [2018-07-23 15:19:47,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:19:47,575 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2018-07-23 15:19:47,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 15:19:47,577 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-07-23 15:19:47,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:19:47,588 INFO L225 Difference]: With dead ends: 8 [2018-07-23 15:19:47,589 INFO L226 Difference]: Without dead ends: 5 [2018-07-23 15:19:47,592 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 15:19:47,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2018-07-23 15:19:47,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2018-07-23 15:19:47,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-07-23 15:19:47,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2018-07-23 15:19:47,629 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2018-07-23 15:19:47,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:19:47,630 INFO L471 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2018-07-23 15:19:47,630 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 15:19:47,630 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2018-07-23 15:19:47,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-23 15:19:47,631 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:19:47,631 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-23 15:19:47,631 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:19:47,632 INFO L82 PathProgramCache]: Analyzing trace with hash 930412, now seen corresponding path program 1 times [2018-07-23 15:19:47,632 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:19:47,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 15:19:47,661 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 15:19:47,662 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 15:19:47,662 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-07-23 15:19:47,664 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 15:19:47,664 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 15:19:47,664 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 15:19:47,665 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 4 states. [2018-07-23 15:19:47,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:19:47,690 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-07-23 15:19:47,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 15:19:47,691 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-07-23 15:19:47,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:19:47,691 INFO L225 Difference]: With dead ends: 8 [2018-07-23 15:19:47,692 INFO L226 Difference]: Without dead ends: 6 [2018-07-23 15:19:47,695 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 15:19:47,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2018-07-23 15:19:47,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-07-23 15:19:47,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-07-23 15:19:47,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-07-23 15:19:47,702 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2018-07-23 15:19:47,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:19:47,702 INFO L471 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2018-07-23 15:19:47,702 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 15:19:47,703 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2018-07-23 15:19:47,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-07-23 15:19:47,703 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:19:47,703 INFO L353 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2018-07-23 15:19:47,704 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:19:47,704 INFO L82 PathProgramCache]: Analyzing trace with hash 28844579, now seen corresponding path program 2 times [2018-07-23 15:19:47,704 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:19:47,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 15:19:47,749 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 15:19:47,749 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 15:19:47,750 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2018-07-23 15:19:47,750 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 15:19:47,750 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 15:19:47,750 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-23 15:19:47,751 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 5 states. [2018-07-23 15:19:47,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:19:47,784 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2018-07-23 15:19:47,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-23 15:19:47,785 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2018-07-23 15:19:47,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:19:47,785 INFO L225 Difference]: With dead ends: 9 [2018-07-23 15:19:47,785 INFO L226 Difference]: Without dead ends: 7 [2018-07-23 15:19:47,786 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-23 15:19:47,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-07-23 15:19:47,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-07-23 15:19:47,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-23 15:19:47,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-23 15:19:47,791 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2018-07-23 15:19:47,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:19:47,791 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-23 15:19:47,791 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 15:19:47,791 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-23 15:19:47,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-23 15:19:47,792 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:19:47,793 INFO L353 BasicCegarLoop]: trace histogram [3, 1, 1, 1] [2018-07-23 15:19:47,793 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:19:47,793 INFO L82 PathProgramCache]: Analyzing trace with hash 894183756, now seen corresponding path program 3 times [2018-07-23 15:19:47,793 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:19:47,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 15:19:47,880 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 15:19:47,880 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 15:19:47,880 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-07-23 15:19:47,881 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 15:19:47,881 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 15:19:47,881 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-07-23 15:19:47,882 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 6 states. [2018-07-23 15:19:47,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:19:47,916 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2018-07-23 15:19:47,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-23 15:19:47,916 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2018-07-23 15:19:47,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:19:47,917 INFO L225 Difference]: With dead ends: 10 [2018-07-23 15:19:47,918 INFO L226 Difference]: Without dead ends: 8 [2018-07-23 15:19:47,919 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-07-23 15:19:47,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-07-23 15:19:47,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-07-23 15:19:47,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-07-23 15:19:47,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-07-23 15:19:47,923 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2018-07-23 15:19:47,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:19:47,924 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2018-07-23 15:19:47,924 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 15:19:47,924 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-07-23 15:19:47,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-23 15:19:47,925 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:19:47,925 INFO L353 BasicCegarLoop]: trace histogram [4, 1, 1, 1] [2018-07-23 15:19:47,925 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:19:47,925 INFO L82 PathProgramCache]: Analyzing trace with hash 1949894467, now seen corresponding path program 4 times [2018-07-23 15:19:47,926 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:19:47,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 15:19:47,990 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 15:19:47,991 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 15:19:47,991 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-07-23 15:19:47,991 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 15:19:47,992 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 15:19:47,992 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-07-23 15:19:47,992 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 7 states. [2018-07-23 15:19:48,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:19:48,009 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-07-23 15:19:48,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 15:19:48,010 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 7 [2018-07-23 15:19:48,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:19:48,011 INFO L225 Difference]: With dead ends: 11 [2018-07-23 15:19:48,011 INFO L226 Difference]: Without dead ends: 9 [2018-07-23 15:19:48,012 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-07-23 15:19:48,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-07-23 15:19:48,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-07-23 15:19:48,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-07-23 15:19:48,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-07-23 15:19:48,015 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-07-23 15:19:48,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:19:48,015 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-07-23 15:19:48,015 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 15:19:48,015 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-07-23 15:19:48,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-07-23 15:19:48,016 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:19:48,016 INFO L353 BasicCegarLoop]: trace histogram [5, 1, 1, 1] [2018-07-23 15:19:48,016 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:19:48,017 INFO L82 PathProgramCache]: Analyzing trace with hash 317188140, now seen corresponding path program 5 times [2018-07-23 15:19:48,017 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:19:48,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 15:19:48,063 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 15:19:48,063 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 15:19:48,063 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-07-23 15:19:48,064 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-23 15:19:48,064 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-23 15:19:48,064 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-07-23 15:19:48,065 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 8 states. [2018-07-23 15:19:48,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:19:48,082 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2018-07-23 15:19:48,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-23 15:19:48,082 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 8 [2018-07-23 15:19:48,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:19:48,083 INFO L225 Difference]: With dead ends: 12 [2018-07-23 15:19:48,083 INFO L226 Difference]: Without dead ends: 10 [2018-07-23 15:19:48,084 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-07-23 15:19:48,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-07-23 15:19:48,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-07-23 15:19:48,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-07-23 15:19:48,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-07-23 15:19:48,089 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2018-07-23 15:19:48,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:19:48,090 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2018-07-23 15:19:48,090 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-23 15:19:48,090 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2018-07-23 15:19:48,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-07-23 15:19:48,090 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:19:48,091 INFO L353 BasicCegarLoop]: trace histogram [6, 1, 1, 1] [2018-07-23 15:19:48,091 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:19:48,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1242899555, now seen corresponding path program 6 times [2018-07-23 15:19:48,091 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:19:48,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 15:19:48,160 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 15:19:48,161 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 15:19:48,161 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-07-23 15:19:48,161 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-23 15:19:48,162 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-23 15:19:48,162 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-07-23 15:19:48,163 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 9 states. [2018-07-23 15:19:48,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:19:48,179 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2018-07-23 15:19:48,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-23 15:19:48,180 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 9 [2018-07-23 15:19:48,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:19:48,181 INFO L225 Difference]: With dead ends: 13 [2018-07-23 15:19:48,181 INFO L226 Difference]: Without dead ends: 11 [2018-07-23 15:19:48,182 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-07-23 15:19:48,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-07-23 15:19:48,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-07-23 15:19:48,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-07-23 15:19:48,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-07-23 15:19:48,185 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2018-07-23 15:19:48,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:19:48,186 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2018-07-23 15:19:48,186 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-23 15:19:48,186 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-07-23 15:19:48,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-07-23 15:19:48,187 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:19:48,187 INFO L353 BasicCegarLoop]: trace histogram [7, 1, 1, 1] [2018-07-23 15:19:48,187 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:19:48,187 INFO L82 PathProgramCache]: Analyzing trace with hash -124817652, now seen corresponding path program 7 times [2018-07-23 15:19:48,187 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:19:48,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 15:19:48,236 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 15:19:48,237 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 15:19:48,237 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-07-23 15:19:48,237 INFO L450 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-07-23 15:19:48,238 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-07-23 15:19:48,238 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-07-23 15:19:48,238 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 10 states. [2018-07-23 15:19:48,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:19:48,260 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2018-07-23 15:19:48,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-23 15:19:48,260 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 10 [2018-07-23 15:19:48,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:19:48,261 INFO L225 Difference]: With dead ends: 14 [2018-07-23 15:19:48,263 INFO L226 Difference]: Without dead ends: 12 [2018-07-23 15:19:48,264 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-07-23 15:19:48,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-07-23 15:19:48,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-07-23 15:19:48,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-07-23 15:19:48,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-07-23 15:19:48,272 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-07-23 15:19:48,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:19:48,272 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-07-23 15:19:48,273 INFO L472 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-07-23 15:19:48,273 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-07-23 15:19:48,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-07-23 15:19:48,273 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:19:48,273 INFO L353 BasicCegarLoop]: trace histogram [8, 1, 1, 1] [2018-07-23 15:19:48,274 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:19:48,274 INFO L82 PathProgramCache]: Analyzing trace with hash 425621891, now seen corresponding path program 8 times [2018-07-23 15:19:48,276 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:19:48,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-07-23 15:19:48,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-07-23 15:19:48,385 INFO L419 BasicCegarLoop]: Counterexample might be feasible [2018-07-23 15:19:48,429 INFO L202 PluginConnector]: Adding new model num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 03:19:48 BoogieIcfgContainer [2018-07-23 15:19:48,430 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 15:19:48,431 INFO L168 Benchmark]: Toolchain (without parser) took 1439.26 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: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2018-07-23 15:19:48,435 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 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 15:19:48,436 INFO L168 Benchmark]: Boogie Preprocessor took 51.33 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 15:19:48,437 INFO L168 Benchmark]: RCFGBuilder took 278.75 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-23 15:19:48,438 INFO L168 Benchmark]: TraceAbstraction took 1104.63 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 15:19:48,445 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 0.23 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 51.33 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 278.75 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1104.63 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 46]: assertion can be violated assertion can be violated We found a FailurePath: [L14] havoc main_#res; [L15] havoc main_~bit~5, main_~c~4, main_~x~4, main_~y~4, main_~i~5; [L16] havoc main_~x~4; [L17] havoc main_~y~4; [L18] havoc main_~c~4; [L19] main_~x~4 := 37; [L20] main_~y~4 := 0; [L21] main_~c~4 := 0; VAL [main_~c~4=0, main_~x~4=37, main_~y~4=0] [L36] assume 0 <= main_~c~4 && main_~c~4 < 8; [L37] havoc main_~i~5; [L38] havoc main_~bit~5; [L39] assume 256 + 256 <= main_~bit~5 && !(main_~bit~5 % 256 == 0); [L40] assume (0 <= main_~y~4 && main_~y~4 < 256) && main_~i~5 < -256; [L41] main_~y~4 := main_~i~5 % 256 + main_~y~4; [L42] assume 0 <= main_~c~4 && main_~c~4 < 256; [L43] main_~c~4 := main_~c~4 + 1; VAL [main_~bit~5=767, main_~c~4=1, main_~i~5=-512, main_~x~4=37, main_~y~4=0] [L36] assume 0 <= main_~c~4 && main_~c~4 < 8; [L37] havoc main_~i~5; [L38] havoc main_~bit~5; [L39] assume 256 + 256 <= main_~bit~5 && !(main_~bit~5 % 256 == 0); [L40] assume (0 <= main_~y~4 && main_~y~4 < 256) && main_~i~5 < -256; [L41] main_~y~4 := main_~i~5 % 256 + main_~y~4; [L42] assume 0 <= main_~c~4 && main_~c~4 < 256; [L43] main_~c~4 := main_~c~4 + 1; VAL [main_~bit~5=767, main_~c~4=2, main_~i~5=-512, main_~x~4=37, main_~y~4=0] [L36] assume 0 <= main_~c~4 && main_~c~4 < 8; [L37] havoc main_~i~5; [L38] havoc main_~bit~5; [L39] assume 256 + 256 <= main_~bit~5 && !(main_~bit~5 % 256 == 0); [L40] assume (0 <= main_~y~4 && main_~y~4 < 256) && main_~i~5 < -256; [L41] main_~y~4 := main_~i~5 % 256 + main_~y~4; [L42] assume 0 <= main_~c~4 && main_~c~4 < 256; [L43] main_~c~4 := main_~c~4 + 1; VAL [main_~bit~5=767, main_~c~4=3, main_~i~5=-512, main_~x~4=37, main_~y~4=0] [L36] assume 0 <= main_~c~4 && main_~c~4 < 8; [L37] havoc main_~i~5; [L38] havoc main_~bit~5; [L39] assume 256 + 256 <= main_~bit~5 && !(main_~bit~5 % 256 == 0); [L40] assume (0 <= main_~y~4 && main_~y~4 < 256) && main_~i~5 < -256; [L41] main_~y~4 := main_~i~5 % 256 + main_~y~4; [L42] assume 0 <= main_~c~4 && main_~c~4 < 256; [L43] main_~c~4 := main_~c~4 + 1; VAL [main_~bit~5=767, main_~c~4=4, main_~i~5=-512, main_~x~4=37, main_~y~4=0] [L36] assume 0 <= main_~c~4 && main_~c~4 < 8; [L37] havoc main_~i~5; [L38] havoc main_~bit~5; [L39] assume 256 + 256 <= main_~bit~5 && !(main_~bit~5 % 256 == 0); [L40] assume (0 <= main_~y~4 && main_~y~4 < 256) && main_~i~5 < -256; [L41] main_~y~4 := main_~i~5 % 256 + main_~y~4; [L42] assume 0 <= main_~c~4 && main_~c~4 < 256; [L43] main_~c~4 := main_~c~4 + 1; VAL [main_~bit~5=767, main_~c~4=5, main_~i~5=-512, main_~x~4=37, main_~y~4=0] [L36] assume 0 <= main_~c~4 && main_~c~4 < 8; [L37] havoc main_~i~5; [L38] havoc main_~bit~5; [L39] assume 256 + 256 <= main_~bit~5 && !(main_~bit~5 % 256 == 0); [L40] assume (0 <= main_~y~4 && main_~y~4 < 256) && main_~i~5 < -256; [L41] main_~y~4 := main_~i~5 % 256 + main_~y~4; [L42] assume 0 <= main_~c~4 && main_~c~4 < 256; [L43] main_~c~4 := main_~c~4 + 1; VAL [main_~bit~5=767, main_~c~4=6, main_~i~5=-512, main_~x~4=37, main_~y~4=0] [L36] assume 0 <= main_~c~4 && main_~c~4 < 8; [L37] havoc main_~i~5; [L38] havoc main_~bit~5; [L39] assume 256 + 256 <= main_~bit~5 && !(main_~bit~5 % 256 == 0); [L40] assume (0 <= main_~y~4 && main_~y~4 < 256) && main_~i~5 < -256; [L41] main_~y~4 := main_~i~5 % 256 + main_~y~4; [L42] assume 0 <= main_~c~4 && main_~c~4 < 256; [L43] main_~c~4 := main_~c~4 + 1; VAL [main_~bit~5=767, main_~c~4=7, main_~i~5=-512, main_~x~4=37, main_~y~4=0] [L36] assume 0 <= main_~c~4 && main_~c~4 < 8; [L37] havoc main_~i~5; [L38] havoc main_~bit~5; [L39] assume 256 + 256 <= main_~bit~5 && !(main_~bit~5 % 256 == 0); [L40] assume (0 <= main_~y~4 && main_~y~4 < 256) && main_~i~5 < -256; [L41] main_~y~4 := main_~i~5 % 256 + main_~y~4; [L42] assume 0 <= main_~c~4 && main_~c~4 < 256; [L43] main_~c~4 := main_~c~4 + 1; VAL [main_~bit~5=767, main_~c~4=8, main_~i~5=-512, main_~x~4=37, main_~y~4=0] [L28] assume !(main_~c~4 < 8) && main_~c~4 < 256; [L29] assume (((main_~y~4 < 256 && 0 <= main_~y~4) && 0 <= main_~x~4) && main_~x~4 < 256) && !(main_~x~4 == main_~y~4); [L30] __VERIFIER_assert_#in~cond := 0; [L31] havoc __VERIFIER_assert_~cond; [L32] __VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; [L33] assume __VERIFIER_assert_~cond == 0; VAL [__VERIFIER_assert_#in~cond=0, __VERIFIER_assert_~cond=0, main_~bit~5=767, main_~c~4=8, main_~i~5=-512, main_~x~4=37, main_~y~4=0] [L46] assert false; VAL [__VERIFIER_assert_#in~cond=0, __VERIFIER_assert_~cond=0, main_~bit~5=767, main_~c~4=8, main_~i~5=-512, main_~x~4=37, main_~y~4=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. UNSAFE Result, 1.0s OverallTime, 9 OverallIterations, 8 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 24 SDtfs, 0 SDslu, 36 SDs, 0 SdLazy, 80 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=8, 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, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 764 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 1 PerfectInterpolantSequences, 0/84 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-07-23_15-19-48-469.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_15-19-48-469.csv Received shutdown request...