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_7.i_2.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 10:21:41,635 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 10:21:41,639 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 10:21:41,654 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 10:21:41,654 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 10:21:41,655 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 10:21:41,657 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 10:21:41,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 10:21:41,662 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 10:21:41,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 10:21:41,666 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 10:21:41,667 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 10:21:41,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 10:21:41,668 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 10:21:41,670 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 10:21:41,677 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 10:21:41,678 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 10:21:41,681 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 10:21:41,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 10:21:41,687 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 10:21:41,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 10:21:41,692 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 10:21:41,693 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 10:21:41,694 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 10:21:41,698 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 10:21:41,698 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 10:21:41,698 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 10:21:41,699 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 10:21:41,700 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 10:21:41,701 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 10:21:41,701 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 10:21:41,704 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 10:21:41,705 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 10:21:41,705 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 10:21:41,708 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 10:21:41,708 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 10:21:41,709 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 10:21:41,710 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 10:21:41,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 10:21:41,711 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 10:21:41,712 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 10:21:41,751 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 10:21:41,764 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 10:21:41,767 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 10:21:41,769 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 10:21:41,769 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 10:21:41,770 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/jain_7.i_2.bpl [2019-08-05 10:21:41,770 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/jain_7.i_2.bpl' [2019-08-05 10:21:41,806 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 10:21:41,807 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 10:21:41,808 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 10:21:41,808 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 10:21:41,808 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 10:21:41,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "jain_7.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:21:41" (1/1) ... [2019-08-05 10:21:41,833 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "jain_7.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:21:41" (1/1) ... [2019-08-05 10:21:41,840 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 10:21:41,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 10:21:41,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 10:21:41,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 10:21:41,852 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "jain_7.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:21:41" (1/1) ... [2019-08-05 10:21:41,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "jain_7.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:21:41" (1/1) ... [2019-08-05 10:21:41,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "jain_7.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:21:41" (1/1) ... [2019-08-05 10:21:41,853 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "jain_7.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:21:41" (1/1) ... [2019-08-05 10:21:41,856 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "jain_7.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:21:41" (1/1) ... [2019-08-05 10:21:41,858 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "jain_7.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:21:41" (1/1) ... [2019-08-05 10:21:41,859 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "jain_7.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:21:41" (1/1) ... [2019-08-05 10:21:41,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 10:21:41,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 10:21:41,861 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 10:21:41,861 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 10:21:41,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "jain_7.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:21:41" (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 10:21:41,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 10:21:41,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 10:21:42,202 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 10:21:42,202 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-05 10:21:42,204 INFO L202 PluginConnector]: Adding new model jain_7.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:21:42 BoogieIcfgContainer [2019-08-05 10:21:42,204 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 10:21:42,205 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 10:21:42,205 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 10:21:42,208 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 10:21:42,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "jain_7.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:21:41" (1/2) ... [2019-08-05 10:21:42,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4745e698 and model type jain_7.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 10:21:42, skipping insertion in model container [2019-08-05 10:21:42,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "jain_7.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:21:42" (2/2) ... [2019-08-05 10:21:42,212 INFO L109 eAbstractionObserver]: Analyzing ICFG jain_7.i_2.bpl [2019-08-05 10:21:42,221 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 10:21:42,229 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 10:21:42,245 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 10:21:42,271 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 10:21:42,272 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 10:21:42,273 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 10:21:42,273 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 10:21:42,273 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 10:21:42,273 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 10:21:42,273 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 10:21:42,274 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 10:21:42,274 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 10:21:42,289 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-08-05 10:21:42,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-05 10:21:42,301 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:21:42,302 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-08-05 10:21:42,308 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:21:42,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:21:42,313 INFO L82 PathProgramCache]: Analyzing trace with hash 925701, now seen corresponding path program 1 times [2019-08-05 10:21:42,364 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:21:42,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:21:42,427 WARN L254 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 16 conjunts are in the unsatisfiable core [2019-08-05 10:21:42,432 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:21:42,551 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:21:54,680 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 10:21:54,683 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 10:21:54,683 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-08-05 10:21:54,686 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 10:21:54,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 10:21:54,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-05 10:21:54,699 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2019-08-05 10:21:54,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:21:54,777 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2019-08-05 10:21:54,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-05 10:21:54,779 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-08-05 10:21:54,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:21:54,796 INFO L225 Difference]: With dead ends: 8 [2019-08-05 10:21:54,797 INFO L226 Difference]: Without dead ends: 8 [2019-08-05 10:21:54,801 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 [2019-08-05 10:21:54,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-08-05 10:21:54,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2019-08-05 10:21:54,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-08-05 10:21:54,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-08-05 10:21:54,843 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2019-08-05 10:21:54,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:21:54,845 INFO L475 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-08-05 10:21:54,845 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 10:21:54,845 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-08-05 10:21:54,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-08-05 10:21:54,846 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:21:54,848 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2019-08-05 10:21:54,848 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:21:54,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:21:54,849 INFO L82 PathProgramCache]: Analyzing trace with hash 889531649, now seen corresponding path program 1 times [2019-08-05 10:21:54,850 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:21:54,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:21:54,914 WARN L254 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 22 conjunts are in the unsatisfiable core [2019-08-05 10:21:54,916 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:21:55,078 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:21:55,116 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 10:21:55,116 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:21:55,116 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2019-08-05 10:21:55,120 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-08-05 10:21:55,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-08-05 10:21:55,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-08-05 10:21:55,123 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 5 states. [2019-08-05 10:21:57,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:21:57,595 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2019-08-05 10:21:57,596 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-08-05 10:21:57,596 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2019-08-05 10:21:57,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:21:57,596 INFO L225 Difference]: With dead ends: 10 [2019-08-05 10:21:57,597 INFO L226 Difference]: Without dead ends: 10 [2019-08-05 10:21:57,598 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 [2019-08-05 10:21:57,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-08-05 10:21:57,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2019-08-05 10:21:57,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-08-05 10:21:57,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-08-05 10:21:57,601 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2019-08-05 10:21:57,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:21:57,601 INFO L475 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-08-05 10:21:57,601 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-08-05 10:21:57,602 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-08-05 10:21:57,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-08-05 10:21:57,602 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:21:57,602 INFO L399 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1] [2019-08-05 10:21:57,603 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:21:57,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:21:57,603 INFO L82 PathProgramCache]: Analyzing trace with hash 141355773, now seen corresponding path program 2 times [2019-08-05 10:21:57,604 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:21:57,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:21:57,652 WARN L254 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 28 conjunts are in the unsatisfiable core [2019-08-05 10:21:57,653 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:22:00,987 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:22:01,091 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:22:01,091 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:22:01,092 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-08-05 10:22:01,092 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-08-05 10:22:01,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-08-05 10:22:01,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=17, Unknown=1, NotChecked=0, Total=30 [2019-08-05 10:22:01,095 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 6 states. [2019-08-05 10:22:20,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:22:20,402 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2019-08-05 10:22:20,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-08-05 10:22:20,402 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2019-08-05 10:22:20,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:22:20,403 INFO L225 Difference]: With dead ends: 12 [2019-08-05 10:22:20,403 INFO L226 Difference]: Without dead ends: 12 [2019-08-05 10:22:20,404 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=22, Invalid=31, Unknown=3, NotChecked=0, Total=56 [2019-08-05 10:22:20,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-08-05 10:22:20,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2019-08-05 10:22:20,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-08-05 10:22:20,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2019-08-05 10:22:20,407 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2019-08-05 10:22:20,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:22:20,407 INFO L475 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2019-08-05 10:22:20,407 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-08-05 10:22:20,407 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-08-05 10:22:20,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-08-05 10:22:20,408 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:22:20,408 INFO L399 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1] [2019-08-05 10:22:20,408 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:22:20,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:22:20,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1596122631, now seen corresponding path program 3 times [2019-08-05 10:22:20,410 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:22:20,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:22:20,462 WARN L254 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 34 conjunts are in the unsatisfiable core [2019-08-05 10:22:20,463 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:22:46,014 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:22:46,125 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 6 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:22:46,129 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:22:46,129 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2019-08-05 10:22:46,130 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-08-05 10:22:46,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-08-05 10:22:46,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=22, Unknown=4, NotChecked=0, Total=42 [2019-08-05 10:22:46,131 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 7 states. [2019-08-05 10:23:56,485 WARN L188 SmtUtils]: Spent 55.52 s on a formula simplification that was a NOOP. DAG size: 46 [2019-08-05 10:25:03,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:25:03,089 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2019-08-05 10:25:03,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-08-05 10:25:03,089 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2019-08-05 10:25:03,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:25:03,091 INFO L225 Difference]: With dead ends: 14 [2019-08-05 10:25:03,091 INFO L226 Difference]: Without dead ends: 14 [2019-08-05 10:25:03,092 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 113.3s TimeCoverageRelationStatistics Valid=34, Invalid=46, Unknown=10, NotChecked=0, Total=90 [2019-08-05 10:25:03,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-08-05 10:25:03,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2019-08-05 10:25:03,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-08-05 10:25:03,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-08-05 10:25:03,096 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2019-08-05 10:25:03,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:25:03,096 INFO L475 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-08-05 10:25:03,096 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-08-05 10:25:03,096 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-08-05 10:25:03,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-08-05 10:25:03,097 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:25:03,097 INFO L399 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1] [2019-08-05 10:25:03,098 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:25:03,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:25:03,098 INFO L82 PathProgramCache]: Analyzing trace with hash -570590731, now seen corresponding path program 4 times [2019-08-05 10:25:03,099 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:25:03,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:25:03,203 WARN L254 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 40 conjunts are in the unsatisfiable core [2019-08-05 10:25:03,208 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:26:15,865 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:26:15,974 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 8 refuted. 12 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:26:15,975 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:26:15,975 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2019-08-05 10:26:15,975 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-08-05 10:26:15,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-08-05 10:26:15,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=27, Unknown=9, NotChecked=0, Total=56 [2019-08-05 10:26:15,976 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 8 states. Received shutdown request... [2019-08-05 10:26:36,234 WARN L196 SmtUtils]: Removed 9 from assertion stack [2019-08-05 10:26:36,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-05 10:26:36,235 WARN L544 AbstractCegarLoop]: Verification canceled [2019-08-05 10:26:36,240 WARN L223 ceAbstractionStarter]: Timeout [2019-08-05 10:26:36,240 INFO L202 PluginConnector]: Adding new model jain_7.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 10:26:36 BoogieIcfgContainer [2019-08-05 10:26:36,240 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 10:26:36,243 INFO L168 Benchmark]: Toolchain (without parser) took 294434.87 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 108.3 MB in the beginning and 106.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 64.9 MB. Max. memory is 7.1 GB. [2019-08-05 10:26:36,244 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 109.6 MB in the beginning and 109.4 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-08-05 10:26:36,245 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.79 ms. Allocated memory is still 140.0 MB. Free memory was 108.1 MB in the beginning and 106.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. [2019-08-05 10:26:36,246 INFO L168 Benchmark]: Boogie Preprocessor took 18.89 ms. Allocated memory is still 140.0 MB. Free memory was 106.5 MB in the beginning and 105.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 7.1 GB. [2019-08-05 10:26:36,247 INFO L168 Benchmark]: RCFGBuilder took 342.91 ms. Allocated memory is still 140.0 MB. Free memory was 105.3 MB in the beginning and 96.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-08-05 10:26:36,248 INFO L168 Benchmark]: TraceAbstraction took 294035.00 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 95.8 MB in the beginning and 106.4 MB in the end (delta: -10.6 MB). Peak memory consumption was 52.3 MB. Max. memory is 7.1 GB. [2019-08-05 10:26:36,252 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 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 109.6 MB in the beginning and 109.4 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 32.79 ms. Allocated memory is still 140.0 MB. Free memory was 108.1 MB in the beginning and 106.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 18.89 ms. Allocated memory is still 140.0 MB. Free memory was 106.5 MB in the beginning and 105.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 342.91 ms. Allocated memory is still 140.0 MB. Free memory was 105.3 MB in the beginning and 96.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 294035.00 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 95.8 MB in the beginning and 106.4 MB in the end (delta: -10.6 MB). Peak memory consumption was 52.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 45]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 45). Cancelled while BasicCegarLoop was constructing difference of abstraction (13states) and FLOYD_HOARE automaton (currently 4 states, 8 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 61 for 15257ms.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. TIMEOUT Result, 293.9s OverallTime, 5 OverallIterations, 5 TraceHistogramMax, 179.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 14 SDtfs, 11 SDslu, 25 SDs, 0 SdLazy, 47 SolverSat, 6 SolverUnsat, 10 SolverUnknown, 0 SolverNotchecked, 69.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 191.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=4, 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, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 114.3s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 35 ConstructedInterpolants, 20 QuantifiedInterpolants, 6058 SizeOfPredicates, 25 NumberOfNonLiveVariables, 215 ConjunctsInSsa, 140 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 0/40 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown