java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 10:48:10,931 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 10:48:10,934 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 10:48:10,951 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 10:48:10,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 10:48:10,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 10:48:10,955 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 10:48:10,958 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 10:48:10,960 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 10:48:10,961 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 10:48:10,964 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 10:48:10,964 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 10:48:10,965 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 10:48:10,967 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 10:48:10,969 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 10:48:10,971 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 10:48:10,978 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 10:48:10,979 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 10:48:10,982 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 10:48:10,987 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 10:48:10,990 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 10:48:10,991 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 10:48:10,993 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 10:48:10,994 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 10:48:10,996 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 10:48:10,996 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 10:48:10,996 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 10:48:10,997 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 10:48:10,997 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 10:48:10,998 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 10:48:10,998 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 10:48:10,999 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 10:48:11,000 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 10:48:11,001 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 10:48:11,002 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 10:48:11,003 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 10:48:11,004 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 10:48:11,004 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 10:48:11,004 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 10:48:11,005 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 10:48:11,006 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 10:48:11,059 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 10:48:11,074 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 10:48:11,078 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 10:48:11,080 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 10:48:11,081 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 10:48:11,082 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl [2019-08-05 10:48:11,082 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl' [2019-08-05 10:48:11,129 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 10:48:11,131 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 10:48:11,132 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 10:48:11,132 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 10:48:11,132 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 10:48:11,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:48:11" (1/1) ... [2019-08-05 10:48:11,162 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:48:11" (1/1) ... [2019-08-05 10:48:11,171 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 10:48:11,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 10:48:11,172 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 10:48:11,172 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 10:48:11,184 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 05.08 10:48:11" (1/1) ... [2019-08-05 10:48:11,184 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 05.08 10:48:11" (1/1) ... [2019-08-05 10:48:11,185 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 05.08 10:48:11" (1/1) ... [2019-08-05 10:48:11,187 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 05.08 10:48:11" (1/1) ... [2019-08-05 10:48:11,192 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 05.08 10:48:11" (1/1) ... [2019-08-05 10:48:11,195 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 05.08 10:48:11" (1/1) ... [2019-08-05 10:48:11,196 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 05.08 10:48:11" (1/1) ... [2019-08-05 10:48:11,202 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 10:48:11,203 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 10:48:11,203 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 10:48:11,203 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 10:48:11,204 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 05.08 10:48:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-08-05 10:48:11,274 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2019-08-05 10:48:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 10:48:11,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 10:48:11,485 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 10:48:11,486 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 10:48:11,487 INFO L202 PluginConnector]: Adding new model ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:48:11 BoogieIcfgContainer [2019-08-05 10:48:11,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 10:48:11,489 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 10:48:11,489 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 10:48:11,492 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 10:48:11,493 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 05.08 10:48:11" (1/2) ... [2019-08-05 10:48:11,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a91dc56 and model type ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 10:48:11, skipping insertion in model container [2019-08-05 10:48:11,494 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 05.08 10:48:11" (2/2) ... [2019-08-05 10:48:11,496 INFO L109 eAbstractionObserver]: Analyzing ICFG ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl [2019-08-05 10:48:11,505 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 10:48:11,514 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 10:48:11,532 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 10:48:11,563 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 10:48:11,564 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 10:48:11,564 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 10:48:11,565 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 10:48:11,565 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 10:48:11,565 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 10:48:11,565 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 10:48:11,565 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 10:48:11,566 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 10:48:11,579 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-08-05 10:48:11,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-05 10:48:11,588 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:48:11,589 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-08-05 10:48:11,591 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:48:11,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:48:11,597 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times [2019-08-05 10:48:11,649 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:48:11,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:48:11,689 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2019-08-05 10:48:11,693 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:48:11,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:48:11,737 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 10:48:11,738 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-05 10:48:11,741 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 10:48:11,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 10:48:11,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 10:48:11,757 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2019-08-05 10:48:11,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:48:11,822 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2019-08-05 10:48:11,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 10:48:11,825 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-08-05 10:48:11,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:48:11,843 INFO L225 Difference]: With dead ends: 7 [2019-08-05 10:48:11,844 INFO L226 Difference]: Without dead ends: 7 [2019-08-05 10:48:11,847 INFO L628 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 [2019-08-05 10:48:11,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-08-05 10:48:11,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-08-05 10:48:11,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-08-05 10:48:11,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-08-05 10:48:11,891 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2019-08-05 10:48:11,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:48:11,892 INFO L475 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-08-05 10:48:11,892 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 10:48:11,892 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-08-05 10:48:11,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-08-05 10:48:11,893 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:48:11,893 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2019-08-05 10:48:11,894 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:48:11,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:48:11,894 INFO L82 PathProgramCache]: Analyzing trace with hash 889591169, now seen corresponding path program 1 times [2019-08-05 10:48:11,895 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:48:11,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:48:11,916 INFO L256 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2019-08-05 10:48:11,918 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:48:12,003 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:48:12,006 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:48:12,006 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2019-08-05 10:48:12,007 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 10:48:12,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 10:48:12,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-08-05 10:48:12,009 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 4 states. [2019-08-05 10:48:12,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:48:12,040 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-08-05 10:48:12,040 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-05 10:48:12,040 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-08-05 10:48:12,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:48:12,041 INFO L225 Difference]: With dead ends: 9 [2019-08-05 10:48:12,041 INFO L226 Difference]: Without dead ends: 9 [2019-08-05 10:48:12,042 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-08-05 10:48:12,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-08-05 10:48:12,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-08-05 10:48:12,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-08-05 10:48:12,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-08-05 10:48:12,045 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2019-08-05 10:48:12,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:48:12,045 INFO L475 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-08-05 10:48:12,045 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 10:48:12,046 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-08-05 10:48:12,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-08-05 10:48:12,046 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:48:12,046 INFO L399 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1] [2019-08-05 10:48:12,047 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:48:12,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:48:12,047 INFO L82 PathProgramCache]: Analyzing trace with hash 198673595, now seen corresponding path program 2 times [2019-08-05 10:48:12,048 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:48:12,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:48:12,082 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjunts are in the unsatisfiable core [2019-08-05 10:48:12,083 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:48:12,137 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:48:12,137 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 10:48:12,138 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-08-05 10:48:12,138 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 10:48:12,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 10:48:12,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 10:48:12,140 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 3 states. [2019-08-05 10:48:12,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:48:12,146 INFO L93 Difference]: Finished difference Result 5 states and 4 transitions. [2019-08-05 10:48:12,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 10:48:12,148 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-08-05 10:48:12,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:48:12,149 INFO L225 Difference]: With dead ends: 5 [2019-08-05 10:48:12,149 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 10:48:12,149 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 10:48:12,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 10:48:12,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 10:48:12,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 10:48:12,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 10:48:12,152 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-08-05 10:48:12,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:48:12,153 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 10:48:12,153 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 10:48:12,154 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 10:48:12,154 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 10:48:12,159 INFO L202 PluginConnector]: Adding new model ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 10:48:12 BoogieIcfgContainer [2019-08-05 10:48:12,159 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 10:48:12,162 INFO L168 Benchmark]: Toolchain (without parser) took 1030.43 ms. Allocated memory is still 140.5 MB. Free memory was 108.7 MB in the beginning and 67.3 MB in the end (delta: 41.4 MB). Peak memory consumption was 41.4 MB. Max. memory is 7.1 GB. [2019-08-05 10:48:12,163 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory is still 109.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 10:48:12,164 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.59 ms. Allocated memory is still 140.5 MB. Free memory was 108.3 MB in the beginning and 106.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-08-05 10:48:12,166 INFO L168 Benchmark]: Boogie Preprocessor took 31.26 ms. Allocated memory is still 140.5 MB. Free memory was 106.6 MB in the beginning and 105.8 MB in the end (delta: 839.1 kB). Peak memory consumption was 839.1 kB. Max. memory is 7.1 GB. [2019-08-05 10:48:12,167 INFO L168 Benchmark]: RCFGBuilder took 284.36 ms. Allocated memory is still 140.5 MB. Free memory was 105.4 MB in the beginning and 95.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-08-05 10:48:12,168 INFO L168 Benchmark]: TraceAbstraction took 670.54 ms. Allocated memory is still 140.5 MB. Free memory was 95.4 MB in the beginning and 67.3 MB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. [2019-08-05 10:48:12,174 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory is still 109.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 39.59 ms. Allocated memory is still 140.5 MB. Free memory was 108.3 MB in the beginning and 106.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.26 ms. Allocated memory is still 140.5 MB. Free memory was 106.6 MB in the beginning and 105.8 MB in the end (delta: 839.1 kB). Peak memory consumption was 839.1 kB. Max. memory is 7.1 GB. * RCFGBuilder took 284.36 ms. Allocated memory is still 140.5 MB. Free memory was 105.4 MB in the beginning and 95.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 670.54 ms. Allocated memory is still 140.5 MB. Free memory was 95.4 MB in the beginning and 67.3 MB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. SAFE Result, 0.6s 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, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s 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: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 163 SizeOfPredicates, 3 NumberOfNonLiveVariables, 135 ConjunctsInSsa, 8 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! Received shutdown request...