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 [2019-08-05 10:26:00,894 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 10:26:00,896 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 10:26:00,907 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 10:26:00,908 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 10:26:00,909 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 10:26:00,910 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 10:26:00,912 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 10:26:00,913 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 10:26:00,914 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 10:26:00,915 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 10:26:00,916 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 10:26:00,916 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 10:26:00,917 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 10:26:00,920 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 10:26:00,922 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 10:26:00,922 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 10:26:00,923 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 10:26:00,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 10:26:00,930 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 10:26:00,933 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 10:26:00,934 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 10:26:00,935 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 10:26:00,938 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 10:26:00,940 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 10:26:00,941 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 10:26:00,941 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 10:26:00,942 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 10:26:00,942 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 10:26:00,943 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 10:26:00,943 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 10:26:00,944 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 10:26:00,945 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 10:26:00,946 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 10:26:00,946 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 10:26:00,947 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 10:26:00,947 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 10:26:00,948 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 10:26:00,948 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 10:26:00,949 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 10:26:00,949 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 10:26:00,993 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 10:26:01,007 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 10:26:01,010 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 10:26:01,012 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 10:26:01,012 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 10:26:01,013 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/jain_2.i_2.bpl [2019-08-05 10:26:01,013 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/jain_2.i_2.bpl' [2019-08-05 10:26:01,052 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 10:26:01,054 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 10:26:01,054 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 10:26:01,055 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 10:26:01,055 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 10:26:01,072 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 05.08 10:26:01" (1/1) ... [2019-08-05 10:26:01,081 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 05.08 10:26:01" (1/1) ... [2019-08-05 10:26:01,090 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 10:26:01,091 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 10:26:01,091 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 10:26:01,092 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 10:26:01,103 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 05.08 10:26:01" (1/1) ... [2019-08-05 10:26:01,103 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 05.08 10:26:01" (1/1) ... [2019-08-05 10:26:01,104 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 05.08 10:26:01" (1/1) ... [2019-08-05 10:26:01,104 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 05.08 10:26:01" (1/1) ... [2019-08-05 10:26:01,110 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 05.08 10:26:01" (1/1) ... [2019-08-05 10:26:01,111 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 05.08 10:26:01" (1/1) ... [2019-08-05 10:26:01,113 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 05.08 10:26:01" (1/1) ... [2019-08-05 10:26:01,114 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 10:26:01,115 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 10:26:01,115 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 10:26:01,115 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 10:26:01,117 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "jain_2.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:26:01" (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 10:26:01,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 10:26:01,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 10:26:01,341 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 10:26:01,342 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-05 10:26:01,343 INFO L202 PluginConnector]: Adding new model jain_2.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:26:01 BoogieIcfgContainer [2019-08-05 10:26:01,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 10:26:01,345 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 10:26:01,345 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 10:26:01,348 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 10:26:01,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "jain_2.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:26:01" (1/2) ... [2019-08-05 10:26:01,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3979c353 and model type jain_2.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 10:26:01, skipping insertion in model container [2019-08-05 10:26:01,350 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 05.08 10:26:01" (2/2) ... [2019-08-05 10:26:01,352 INFO L109 eAbstractionObserver]: Analyzing ICFG jain_2.i_2.bpl [2019-08-05 10:26:01,361 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 10:26:01,368 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 10:26:01,384 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 10:26:01,410 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 10:26:01,411 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 10:26:01,411 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 10:26:01,411 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 10:26:01,412 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 10:26:01,412 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 10:26:01,412 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 10:26:01,412 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 10:26:01,412 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 10:26:01,426 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-08-05 10:26:01,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-05 10:26:01,434 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:26:01,435 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-08-05 10:26:01,437 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:26:01,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:26:01,443 INFO L82 PathProgramCache]: Analyzing trace with hash 925701, now seen corresponding path program 1 times [2019-08-05 10:26:01,488 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:26:01,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:26:01,542 WARN L254 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 12 conjunts are in the unsatisfiable core [2019-08-05 10:26:01,546 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:26:01,614 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:26:01,726 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 10:26:01,729 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 10:26:01,729 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-08-05 10:26:01,735 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 10:26:01,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 10:26:01,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-05 10:26:01,749 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2019-08-05 10:26:01,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:26:01,817 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2019-08-05 10:26:01,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-05 10:26:01,820 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-08-05 10:26:01,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:26:01,830 INFO L225 Difference]: With dead ends: 8 [2019-08-05 10:26:01,830 INFO L226 Difference]: Without dead ends: 8 [2019-08-05 10:26:01,832 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 10:26:01,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-08-05 10:26:01,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2019-08-05 10:26:01,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-08-05 10:26:01,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-08-05 10:26:01,864 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2019-08-05 10:26:01,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:26:01,864 INFO L475 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-08-05 10:26:01,864 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 10:26:01,865 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-08-05 10:26:01,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-08-05 10:26:01,865 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:26:01,865 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2019-08-05 10:26:01,866 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:26:01,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:26:01,867 INFO L82 PathProgramCache]: Analyzing trace with hash 889531649, now seen corresponding path program 1 times [2019-08-05 10:26:01,868 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:26:01,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:26:01,898 WARN L254 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 16 conjunts are in the unsatisfiable core [2019-08-05 10:26:01,899 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:26:02,037 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:26:02,083 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 10:26:02,083 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:26:02,084 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2019-08-05 10:26:02,085 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-08-05 10:26:02,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-08-05 10:26:02,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-08-05 10:26:02,087 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 5 states. [2019-08-05 10:26:14,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:26:14,335 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2019-08-05 10:26:14,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-08-05 10:26:14,336 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2019-08-05 10:26:14,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:26:14,337 INFO L225 Difference]: With dead ends: 10 [2019-08-05 10:26:14,337 INFO L226 Difference]: Without dead ends: 10 [2019-08-05 10:26:14,338 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 10:26:14,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-08-05 10:26:14,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2019-08-05 10:26:14,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-08-05 10:26:14,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-08-05 10:26:14,341 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2019-08-05 10:26:14,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:26:14,342 INFO L475 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-08-05 10:26:14,342 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-08-05 10:26:14,342 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-08-05 10:26:14,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-08-05 10:26:14,343 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:26:14,356 INFO L399 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1] [2019-08-05 10:26:14,359 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:26:14,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:26:14,360 INFO L82 PathProgramCache]: Analyzing trace with hash 141355773, now seen corresponding path program 2 times [2019-08-05 10:26:14,361 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:26:14,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:26:14,424 WARN L254 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 20 conjunts are in the unsatisfiable core [2019-08-05 10:26:14,425 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:26:15,306 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:26:15,382 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 10:26:15,382 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:26:15,382 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-08-05 10:26:15,383 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-08-05 10:26:15,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-08-05 10:26:15,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=17, Unknown=2, NotChecked=0, Total=30 [2019-08-05 10:26:15,384 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 6 states. [2019-08-05 10:26:16,470 WARN L188 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 27 [2019-08-05 10:26:29,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:26:29,388 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2019-08-05 10:26:29,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-08-05 10:26:29,389 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2019-08-05 10:26:29,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:26:29,390 INFO L225 Difference]: With dead ends: 7 [2019-08-05 10:26:29,390 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 10:26:29,390 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=21, Invalid=31, Unknown=4, NotChecked=0, Total=56 [2019-08-05 10:26:29,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 10:26:29,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 10:26:29,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 10:26:29,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 10:26:29,391 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-08-05 10:26:29,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:26:29,392 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 10:26:29,392 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-08-05 10:26:29,392 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 10:26:29,392 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 10:26:29,398 INFO L202 PluginConnector]: Adding new model jain_2.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 10:26:29 BoogieIcfgContainer [2019-08-05 10:26:29,398 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 10:26:29,400 INFO L168 Benchmark]: Toolchain (without parser) took 28346.17 ms. Allocated memory was 135.3 MB in the beginning and 167.8 MB in the end (delta: 32.5 MB). Free memory was 111.5 MB in the beginning and 120.1 MB in the end (delta: -8.7 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2019-08-05 10:26:29,401 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 135.3 MB. Free memory was 112.7 MB in the beginning and 112.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-08-05 10:26:29,402 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.55 ms. Allocated memory is still 135.3 MB. Free memory was 111.3 MB in the beginning and 109.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. [2019-08-05 10:26:29,403 INFO L168 Benchmark]: Boogie Preprocessor took 23.06 ms. Allocated memory is still 135.3 MB. Free memory was 109.7 MB in the beginning and 108.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 7.1 GB. [2019-08-05 10:26:29,404 INFO L168 Benchmark]: RCFGBuilder took 228.66 ms. Allocated memory is still 135.3 MB. Free memory was 108.5 MB in the beginning and 99.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-08-05 10:26:29,406 INFO L168 Benchmark]: TraceAbstraction took 28053.07 ms. Allocated memory was 135.3 MB in the beginning and 167.8 MB in the end (delta: 32.5 MB). Free memory was 99.0 MB in the beginning and 120.1 MB in the end (delta: -21.1 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2019-08-05 10:26:29,410 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 135.3 MB. Free memory was 112.7 MB in the beginning and 112.5 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 36.55 ms. Allocated memory is still 135.3 MB. Free memory was 111.3 MB in the beginning and 109.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 23.06 ms. Allocated memory is still 135.3 MB. Free memory was 109.7 MB in the beginning and 108.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 228.66 ms. Allocated memory is still 135.3 MB. Free memory was 108.5 MB in the beginning and 99.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 28053.07 ms. Allocated memory was 135.3 MB in the beginning and 167.8 MB in the end (delta: 32.5 MB). Free memory was 99.0 MB in the beginning and 120.1 MB in the end (delta: -21.1 MB). Peak memory consumption was 11.4 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, 27.9s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 26.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8 SDtfs, 5 SDslu, 11 SDs, 0 SdLazy, 24 SolverSat, 4 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 24.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s 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...