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/20170304-DifficultPathPrograms/jain_2.i_2.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-04 21:34:59,712 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-04 21:34:59,714 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-04 21:34:59,726 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-04 21:34:59,726 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-04 21:34:59,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-04 21:34:59,730 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-04 21:34:59,732 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-04 21:34:59,735 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-04 21:34:59,736 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-04 21:34:59,743 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-04 21:34:59,744 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-04 21:34:59,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-04 21:34:59,748 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-04 21:34:59,751 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-04 21:34:59,752 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-04 21:34:59,755 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-04 21:34:59,756 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-04 21:34:59,758 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-04 21:34:59,760 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-04 21:34:59,761 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-04 21:34:59,763 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-04 21:34:59,764 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-04 21:34:59,765 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-04 21:34:59,767 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-04 21:34:59,767 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-04 21:34:59,767 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-04 21:34:59,768 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-04 21:34:59,769 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-04 21:34:59,773 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-04 21:34:59,773 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-04 21:34:59,774 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-04 21:34:59,776 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-04 21:34:59,778 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-04 21:34:59,779 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-04 21:34:59,779 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-04 21:34:59,780 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-04 21:34:59,780 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-04 21:34:59,781 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-04 21:34:59,782 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-04 21:34:59,783 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-04 21:34:59,830 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-04 21:34:59,847 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-04 21:34:59,852 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-04 21:34:59,854 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-04 21:34:59,855 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-04 21:34:59,855 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/jain_2.i_2.bpl [2019-08-04 21:34:59,856 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/jain_2.i_2.bpl' [2019-08-04 21:34:59,897 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-04 21:34:59,899 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-04 21:34:59,900 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-04 21:34:59,900 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-04 21:34:59,901 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-04 21:34:59,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "jain_2.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:34:59" (1/1) ... [2019-08-04 21:34:59,928 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "jain_2.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:34:59" (1/1) ... [2019-08-04 21:34:59,938 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-04 21:34:59,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-04 21:34:59,939 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-04 21:34:59,939 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-04 21:34:59,949 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "jain_2.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:34:59" (1/1) ... [2019-08-04 21:34:59,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "jain_2.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:34:59" (1/1) ... [2019-08-04 21:34:59,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "jain_2.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:34:59" (1/1) ... [2019-08-04 21:34:59,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "jain_2.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:34:59" (1/1) ... [2019-08-04 21:34:59,955 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "jain_2.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:34:59" (1/1) ... [2019-08-04 21:34:59,959 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "jain_2.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:34:59" (1/1) ... [2019-08-04 21:34:59,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "jain_2.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:34:59" (1/1) ... [2019-08-04 21:34:59,961 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-04 21:34:59,962 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-04 21:34:59,962 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-04 21:34:59,962 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-04 21:34:59,963 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "jain_2.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:34:59" (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 [2019-08-04 21:35:00,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-04 21:35:00,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-04 21:35:00,187 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-04 21:35:00,187 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-04 21:35:00,188 INFO L202 PluginConnector]: Adding new model jain_2.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.08 09:35:00 BoogieIcfgContainer [2019-08-04 21:35:00,188 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-04 21:35:00,190 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-04 21:35:00,190 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-04 21:35:00,193 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-04 21:35:00,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "jain_2.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:34:59" (1/2) ... [2019-08-04 21:35:00,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7af1841d and model type jain_2.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.08 09:35:00, skipping insertion in model container [2019-08-04 21:35:00,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "jain_2.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.08 09:35:00" (2/2) ... [2019-08-04 21:35:00,196 INFO L109 eAbstractionObserver]: Analyzing ICFG jain_2.i_2.bpl [2019-08-04 21:35:00,205 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-04 21:35:00,212 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-04 21:35:00,225 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-04 21:35:00,250 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-04 21:35:00,251 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-04 21:35:00,251 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-04 21:35:00,251 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-04 21:35:00,251 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-04 21:35:00,252 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-04 21:35:00,252 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-04 21:35:00,252 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-04 21:35:00,252 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-04 21:35:00,266 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-08-04 21:35:00,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-04 21:35:00,274 INFO L391 BasicCegarLoop]: Found error trace [2019-08-04 21:35:00,275 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-08-04 21:35:00,278 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-04 21:35:00,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-04 21:35:00,284 INFO L82 PathProgramCache]: Analyzing trace with hash 925701, now seen corresponding path program 1 times [2019-08-04 21:35:00,327 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-04 21:35:00,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-04 21:35:00,376 WARN L254 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 12 conjunts are in the unsatisfiable core [2019-08-04 21:35:00,380 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-04 21:35:00,451 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:35:00,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-04 21:35:00,580 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-04 21:35:00,581 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-08-04 21:35:00,585 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-04 21:35:00,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-04 21:35:00,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-04 21:35:00,605 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2019-08-04 21:35:00,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-04 21:35:00,708 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2019-08-04 21:35:00,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-04 21:35:00,711 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-08-04 21:35:00,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-04 21:35:00,722 INFO L225 Difference]: With dead ends: 8 [2019-08-04 21:35:00,722 INFO L226 Difference]: Without dead ends: 8 [2019-08-04 21:35:00,724 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-04 21:35:00,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-08-04 21:35:00,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2019-08-04 21:35:00,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-08-04 21:35:00,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-08-04 21:35:00,751 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2019-08-04 21:35:00,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-04 21:35:00,751 INFO L475 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-08-04 21:35:00,752 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-04 21:35:00,752 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-08-04 21:35:00,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-08-04 21:35:00,753 INFO L391 BasicCegarLoop]: Found error trace [2019-08-04 21:35:00,753 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2019-08-04 21:35:00,754 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-04 21:35:00,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-04 21:35:00,754 INFO L82 PathProgramCache]: Analyzing trace with hash 889531649, now seen corresponding path program 1 times [2019-08-04 21:35:00,755 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-04 21:35:00,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-04 21:35:00,787 WARN L254 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 16 conjunts are in the unsatisfiable core [2019-08-04 21:35:00,788 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-04 21:35:00,926 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:35:00,968 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-04 21:35:00,968 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-04 21:35:00,969 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2019-08-04 21:35:00,970 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-08-04 21:35:00,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-08-04 21:35:00,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-08-04 21:35:00,971 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 5 states. [2019-08-04 21:35:13,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-04 21:35:13,134 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2019-08-04 21:35:13,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-08-04 21:35:13,134 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2019-08-04 21:35:13,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-04 21:35:13,135 INFO L225 Difference]: With dead ends: 10 [2019-08-04 21:35:13,135 INFO L226 Difference]: Without dead ends: 10 [2019-08-04 21:35:13,137 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-08-04 21:35:13,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-08-04 21:35:13,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2019-08-04 21:35:13,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-08-04 21:35:13,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-08-04 21:35:13,140 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2019-08-04 21:35:13,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-04 21:35:13,140 INFO L475 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-08-04 21:35:13,140 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-08-04 21:35:13,141 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-08-04 21:35:13,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-08-04 21:35:13,141 INFO L391 BasicCegarLoop]: Found error trace [2019-08-04 21:35:13,141 INFO L399 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1] [2019-08-04 21:35:13,142 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-04 21:35:13,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-04 21:35:13,153 INFO L82 PathProgramCache]: Analyzing trace with hash 141355773, now seen corresponding path program 2 times [2019-08-04 21:35:13,154 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-04 21:35:13,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-04 21:35:13,191 WARN L254 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 20 conjunts are in the unsatisfiable core [2019-08-04 21:35:13,193 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-04 21:35:14,012 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:35:14,053 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-04 21:35:14,053 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-04 21:35:14,054 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-08-04 21:35:14,054 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-08-04 21:35:14,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-08-04 21:35:14,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=17, Unknown=2, NotChecked=0, Total=30 [2019-08-04 21:35:14,055 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 6 states. [2019-08-04 21:35:15,865 WARN L188 SmtUtils]: Spent 1.75 s on a formula simplification that was a NOOP. DAG size: 27 [2019-08-04 21:35:18,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-04 21:35:18,911 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2019-08-04 21:35:18,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-08-04 21:35:18,912 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2019-08-04 21:35:18,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-04 21:35:18,915 INFO L225 Difference]: With dead ends: 7 [2019-08-04 21:35:18,915 INFO L226 Difference]: Without dead ends: 0 [2019-08-04 21:35:18,916 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=21, Invalid=31, Unknown=4, NotChecked=0, Total=56 [2019-08-04 21:35:18,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-04 21:35:18,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-04 21:35:18,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-04 21:35:18,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-04 21:35:18,917 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-08-04 21:35:18,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-04 21:35:18,917 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-04 21:35:18,917 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-08-04 21:35:18,917 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-04 21:35:18,917 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-04 21:35:18,923 INFO L202 PluginConnector]: Adding new model jain_2.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.08 09:35:18 BoogieIcfgContainer [2019-08-04 21:35:18,923 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-04 21:35:18,925 INFO L168 Benchmark]: Toolchain (without parser) took 19025.58 ms. Allocated memory was 137.9 MB in the beginning and 172.5 MB in the end (delta: 34.6 MB). Free memory was 111.1 MB in the beginning and 122.7 MB in the end (delta: -11.6 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. [2019-08-04 21:35:18,927 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 112.3 MB in the beginning and 112.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-04 21:35:18,928 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.34 ms. Allocated memory is still 137.9 MB. Free memory was 110.9 MB in the beginning and 109.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. [2019-08-04 21:35:18,929 INFO L168 Benchmark]: Boogie Preprocessor took 22.01 ms. Allocated memory is still 137.9 MB. Free memory was 109.3 MB in the beginning and 108.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 7.1 GB. [2019-08-04 21:35:18,930 INFO L168 Benchmark]: RCFGBuilder took 226.48 ms. Allocated memory is still 137.9 MB. Free memory was 108.1 MB in the beginning and 99.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-08-04 21:35:18,931 INFO L168 Benchmark]: TraceAbstraction took 18733.22 ms. Allocated memory was 137.9 MB in the beginning and 172.5 MB in the end (delta: 34.6 MB). Free memory was 98.6 MB in the beginning and 122.7 MB in the end (delta: -24.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2019-08-04 21:35:18,936 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 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 112.3 MB in the beginning and 112.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 38.34 ms. Allocated memory is still 137.9 MB. Free memory was 110.9 MB in the beginning and 109.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 22.01 ms. Allocated memory is still 137.9 MB. Free memory was 109.3 MB in the beginning and 108.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 226.48 ms. Allocated memory is still 137.9 MB. Free memory was 108.1 MB in the beginning and 99.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18733.22 ms. Allocated memory was 137.9 MB in the beginning and 172.5 MB in the end (delta: 34.6 MB). Free memory was 98.6 MB in the beginning and 122.7 MB in the end (delta: -24.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 39]: 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, 18.6s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 17.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8 SDtfs, 5 SDslu, 11 SDs, 0 SdLazy, 24 SolverSat, 4 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 12.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 5.2s 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, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 15 ConstructedInterpolants, 6 QuantifiedInterpolants, 895 SizeOfPredicates, 12 NumberOfNonLiveVariables, 78 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/8 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...