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/ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-56c9370 [2018-07-23 15:19:06,913 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 15:19:06,915 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 15:19:06,933 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 15:19:06,933 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 15:19:06,934 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 15:19:06,936 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 15:19:06,939 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 15:19:06,941 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 15:19:06,950 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 15:19:06,951 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 15:19:06,951 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 15:19:06,952 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 15:19:06,953 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 15:19:06,954 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 15:19:06,956 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 15:19:06,957 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 15:19:06,962 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 15:19:06,967 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 15:19:06,968 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 15:19:06,972 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 15:19:06,975 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 15:19:06,977 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 15:19:06,978 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 15:19:06,978 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 15:19:06,982 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 15:19:06,983 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 15:19:06,985 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 15:19:06,985 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 15:19:06,988 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 15:19:06,988 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 15:19:06,989 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-23 15:19:06,992 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 15:19:07,015 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 15:19:07,016 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 15:19:07,018 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 15:19:07,018 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-23 15:19:07,018 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 15:19:07,019 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-07-23 15:19:07,019 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 15:19:07,019 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 15:19:07,086 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 15:19:07,098 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 15:19:07,102 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 15:19:07,104 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 15:19:07,105 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 15:19:07,105 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl [2018-07-23 15:19:07,106 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl' [2018-07-23 15:19:07,164 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 15:19:07,165 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 15:19:07,166 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 15:19:07,166 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 15:19:07,167 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 15:19:07,194 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:19:07" (1/1) ... [2018-07-23 15:19:07,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:19:07" (1/1) ... [2018-07-23 15:19:07,206 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:19:07" (1/1) ... [2018-07-23 15:19:07,207 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:19:07" (1/1) ... [2018-07-23 15:19:07,210 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:19:07" (1/1) ... [2018-07-23 15:19:07,212 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:19:07" (1/1) ... [2018-07-23 15:19:07,213 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:19:07" (1/1) ... [2018-07-23 15:19:07,215 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 15:19:07,216 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 15:19:07,216 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 15:19:07,216 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 15:19:07,217 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:19:07" (1/1) ... [2018-07-23 15:19:07,293 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-07-23 15:19:07,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 15:19:07,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 15:19:07,428 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 15:19:07,429 INFO L202 PluginConnector]: Adding new model ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:19:07 BoogieIcfgContainer [2018-07-23 15:19:07,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 15:19:07,430 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 15:19:07,431 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 15:19:07,434 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 15:19:07,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:19:07" (1/2) ... [2018-07-23 15:19:07,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30b63599 and model type ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 03:19:07, skipping insertion in model container [2018-07-23 15:19:07,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:19:07" (2/2) ... [2018-07-23 15:19:07,438 INFO L112 eAbstractionObserver]: Analyzing ICFG ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl [2018-07-23 15:19:07,448 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-07-23 15:19:07,458 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 15:19:07,511 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 15:19:07,512 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 15:19:07,513 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 15:19:07,513 INFO L375 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-07-23 15:19:07,513 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 15:19:07,513 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 15:19:07,513 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 15:19:07,514 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 15:19:07,514 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 15:19:07,530 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-23 15:19:07,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-23 15:19:07,543 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:19:07,545 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-23 15:19:07,545 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:19:07,553 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times [2018-07-23 15:19:07,560 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:19:07,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 15:19:07,669 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 15:19:07,676 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 15:19:07,677 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-23 15:19:07,682 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 15:19:07,701 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 15:19:07,702 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 15:19:07,705 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2018-07-23 15:19:07,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:19:07,735 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-07-23 15:19:07,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 15:19:07,737 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-07-23 15:19:07,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:19:07,749 INFO L225 Difference]: With dead ends: 10 [2018-07-23 15:19:07,750 INFO L226 Difference]: Without dead ends: 7 [2018-07-23 15:19:07,753 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 15:19:07,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-07-23 15:19:07,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-07-23 15:19:07,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-23 15:19:07,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-23 15:19:07,793 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-07-23 15:19:07,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:19:07,794 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-23 15:19:07,794 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 15:19:07,794 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-23 15:19:07,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-23 15:19:07,795 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:19:07,795 INFO L353 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-07-23 15:19:07,796 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:19:07,796 INFO L82 PathProgramCache]: Analyzing trace with hash 889591169, now seen corresponding path program 1 times [2018-07-23 15:19:07,796 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:19:07,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 15:19:07,867 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 15:19:07,867 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 15:19:07,868 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-07-23 15:19:07,870 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 15:19:07,870 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 15:19:07,870 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 15:19:07,871 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 4 states. [2018-07-23 15:19:07,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:19:07,898 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-07-23 15:19:07,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 15:19:07,899 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2018-07-23 15:19:07,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:19:07,900 INFO L225 Difference]: With dead ends: 11 [2018-07-23 15:19:07,900 INFO L226 Difference]: Without dead ends: 9 [2018-07-23 15:19:07,901 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 15:19:07,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-07-23 15:19:07,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-07-23 15:19:07,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-07-23 15:19:07,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-07-23 15:19:07,905 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2018-07-23 15:19:07,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:19:07,906 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-07-23 15:19:07,906 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 15:19:07,906 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-07-23 15:19:07,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-07-23 15:19:07,907 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:19:07,907 INFO L353 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1] [2018-07-23 15:19:07,907 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:19:07,908 INFO L82 PathProgramCache]: Analyzing trace with hash 198673595, now seen corresponding path program 2 times [2018-07-23 15:19:07,908 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:19:07,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 15:19:07,935 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 15:19:07,936 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 15:19:07,936 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 15:19:07,936 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 15:19:07,937 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 15:19:07,937 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 15:19:07,937 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 3 states. [2018-07-23 15:19:07,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:19:07,943 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2018-07-23 15:19:07,943 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 15:19:07,944 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-07-23 15:19:07,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:19:07,944 INFO L225 Difference]: With dead ends: 9 [2018-07-23 15:19:07,944 INFO L226 Difference]: Without dead ends: 0 [2018-07-23 15:19:07,945 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 15:19:07,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-23 15:19:07,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-23 15:19:07,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-23 15:19:07,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-23 15:19:07,946 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2018-07-23 15:19:07,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:19:07,947 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-23 15:19:07,947 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 15:19:07,947 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-23 15:19:07,947 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-23 15:19:07,952 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-23 15:19:08,013 INFO L417 ceAbstractionStarter]: At program point ULTIMATE.startErr0AssertViolationASSERT(line 60) the Hoare annotation is: false [2018-07-23 15:19:08,013 INFO L417 ceAbstractionStarter]: At program point L47(lines 47 59) the Hoare annotation is: false [2018-07-23 15:19:08,014 INFO L417 ceAbstractionStarter]: At program point L58(lines 32 58) the Hoare annotation is: (or (<= ULTIMATE.start_main_~a~5 0) (and (<= 2 ULTIMATE.start_main_~i~5) (<= ULTIMATE.start_main_~a~5 1))) [2018-07-23 15:19:08,014 INFO L417 ceAbstractionStarter]: At program point L35(lines 35 48) the Hoare annotation is: (or (<= ULTIMATE.start_main_~a~5 0) (and (<= 2 ULTIMATE.start_main_~i~5) (<= ULTIMATE.start_main_~a~5 1))) [2018-07-23 15:19:08,015 INFO L424 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 61) the Hoare annotation is: true [2018-07-23 15:19:08,015 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 61) no Hoare annotation was computed. [2018-07-23 15:19:08,015 INFO L417 ceAbstractionStarter]: At program point ULTIMATE.startEXIT(lines 1 61) the Hoare annotation is: false [2018-07-23 15:19:08,028 INFO L202 PluginConnector]: Adding new model ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 03:19:08 BoogieIcfgContainer [2018-07-23 15:19:08,031 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 15:19:08,032 INFO L168 Benchmark]: Toolchain (without parser) took 867.40 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-07-23 15:19:08,034 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 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. [2018-07-23 15:19:08,035 INFO L168 Benchmark]: Boogie Preprocessor took 48.91 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. [2018-07-23 15:19:08,037 INFO L168 Benchmark]: RCFGBuilder took 213.84 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. [2018-07-23 15:19:08,038 INFO L168 Benchmark]: TraceAbstraction took 600.39 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-07-23 15:19:08,044 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 0.19 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 48.91 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 213.84 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 600.39 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 60]: 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: 35]: Loop Invariant Derived loop invariant: main_~a~5 <= 0 || (2 <= main_~i~5 && main_~a~5 <= 1) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: main_~a~5 <= 0 || (2 <= main_~i~5 && main_~a~5 <= 1) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: false - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. SAFE Result, 0.5s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12 SDtfs, 0 SDslu, 7 SDs, 0 SdLazy, 9 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 26 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 163 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 6/8 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/ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-07-23_15-19-08-064.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_15-19-08-064.csv Received shutdown request...