java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr-smtinterpol.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_3.cil.c_20.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-e6fd87c [2018-07-25 14:52:27,459 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-25 14:52:27,461 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-25 14:52:27,482 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-25 14:52:27,482 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-25 14:52:27,484 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-25 14:52:27,487 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-25 14:52:27,490 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-25 14:52:27,494 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-25 14:52:27,495 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-25 14:52:27,504 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-25 14:52:27,504 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-25 14:52:27,505 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-25 14:52:27,506 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-25 14:52:27,507 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-25 14:52:27,508 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-25 14:52:27,509 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-25 14:52:27,511 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-25 14:52:27,513 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-25 14:52:27,515 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-25 14:52:27,516 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-25 14:52:27,517 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-25 14:52:27,520 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-25 14:52:27,520 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-25 14:52:27,520 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-25 14:52:27,521 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-25 14:52:27,522 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-25 14:52:27,523 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-25 14:52:27,524 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-25 14:52:27,525 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-25 14:52:27,525 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-25 14:52:27,526 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-25 14:52:27,529 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr-smtinterpol.epf [2018-07-25 14:52:27,544 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-25 14:52:27,546 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-25 14:52:27,548 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-25 14:52:27,548 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-25 14:52:27,548 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-25 14:52:27,549 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-25 14:52:27,549 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-25 14:52:27,549 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-25 14:52:27,620 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-25 14:52:27,640 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-25 14:52:27,648 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-25 14:52:27,649 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-25 14:52:27,650 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-25 14:52:27,651 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_3.cil.c_20.bpl [2018-07-25 14:52:27,651 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_3.cil.c_20.bpl' [2018-07-25 14:52:27,755 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-25 14:52:27,757 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-07-25 14:52:27,758 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-25 14:52:27,758 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-25 14:52:27,758 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-25 14:52:27,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:27" (1/1) ... [2018-07-25 14:52:27,804 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:27" (1/1) ... [2018-07-25 14:52:27,821 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-25 14:52:27,822 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-25 14:52:27,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-25 14:52:27,823 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-25 14:52:27,836 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:27" (1/1) ... [2018-07-25 14:52:27,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:27" (1/1) ... [2018-07-25 14:52:27,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:27" (1/1) ... [2018-07-25 14:52:27,845 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:27" (1/1) ... [2018-07-25 14:52:27,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:27" (1/1) ... [2018-07-25 14:52:27,874 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:27" (1/1) ... [2018-07-25 14:52:27,880 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:27" (1/1) ... [2018-07-25 14:52:27,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-25 14:52:27,893 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-25 14:52:27,894 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-25 14:52:27,894 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-25 14:52:27,897 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:27" (1/1) ... [2018-07-25 14:52:28,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-25 14:52:28,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-25 14:52:28,534 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-25 14:52:28,535 INFO L202 PluginConnector]: Adding new model s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 02:52:28 BoogieIcfgContainer [2018-07-25 14:52:28,535 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-25 14:52:28,538 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-25 14:52:28,538 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-25 14:52:28,542 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-25 14:52:28,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:27" (1/2) ... [2018-07-25 14:52:28,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61616ec9 and model type s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.07 02:52:28, skipping insertion in model container [2018-07-25 14:52:28,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 02:52:28" (2/2) ... [2018-07-25 14:52:28,549 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_srvr_3.cil.c_20.bpl [2018-07-25 14:52:28,560 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-25 14:52:28,571 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-25 14:52:28,627 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-25 14:52:28,629 INFO L374 AbstractCegarLoop]: Interprodecural is true [2018-07-25 14:52:28,630 INFO L375 AbstractCegarLoop]: Hoare is true [2018-07-25 14:52:28,630 INFO L376 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-25 14:52:28,630 INFO L377 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-25 14:52:28,631 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-25 14:52:28,631 INFO L379 AbstractCegarLoop]: Difference is false [2018-07-25 14:52:28,631 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-25 14:52:28,632 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-25 14:52:28,654 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-07-25 14:52:28,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-07-25 14:52:28,672 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:52:28,674 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 14:52:28,675 INFO L415 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:52:28,682 INFO L82 PathProgramCache]: Analyzing trace with hash -505433777, now seen corresponding path program 1 times [2018-07-25 14:52:28,690 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:52:29,330 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:52:29,331 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-25 14:52:29,340 INFO L451 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-25 14:52:29,348 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-25 14:52:29,349 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-25 14:52:29,353 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 4 states. [2018-07-25 14:52:29,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:52:29,526 INFO L93 Difference]: Finished difference Result 47 states and 81 transitions. [2018-07-25 14:52:29,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-25 14:52:29,528 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-07-25 14:52:29,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:52:29,552 INFO L225 Difference]: With dead ends: 47 [2018-07-25 14:52:29,552 INFO L226 Difference]: Without dead ends: 44 [2018-07-25 14:52:29,559 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 854 GetRequests, 839 SyntacticMatches, 11 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-25 14:52:29,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-07-25 14:52:29,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-07-25 14:52:29,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-07-25 14:52:29,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 77 transitions. [2018-07-25 14:52:29,630 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 77 transitions. Word has length 15 [2018-07-25 14:52:29,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:52:29,634 INFO L472 AbstractCegarLoop]: Abstraction has 44 states and 77 transitions. [2018-07-25 14:52:29,634 INFO L473 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-25 14:52:29,634 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 77 transitions. [2018-07-25 14:52:29,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-07-25 14:52:29,637 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:52:29,638 INFO L354 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 14:52:29,639 INFO L415 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:52:29,639 INFO L82 PathProgramCache]: Analyzing trace with hash 339867494, now seen corresponding path program 1 times [2018-07-25 14:52:29,640 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:52:30,727 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:52:30,727 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 14:52:30,729 INFO L451 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-25 14:52:30,729 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-25 14:52:30,729 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-07-25 14:52:30,730 INFO L87 Difference]: Start difference. First operand 44 states and 77 transitions. Second operand 6 states. [2018-07-25 14:52:30,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:52:30,922 INFO L93 Difference]: Finished difference Result 60 states and 104 transitions. [2018-07-25 14:52:30,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-25 14:52:30,923 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2018-07-25 14:52:30,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:52:30,925 INFO L225 Difference]: With dead ends: 60 [2018-07-25 14:52:30,926 INFO L226 Difference]: Without dead ends: 58 [2018-07-25 14:52:30,928 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 3162 GetRequests, 3135 SyntacticMatches, 17 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-07-25 14:52:30,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-07-25 14:52:30,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 44. [2018-07-25 14:52:30,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-07-25 14:52:30,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 77 transitions. [2018-07-25 14:52:30,942 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 77 transitions. Word has length 35 [2018-07-25 14:52:30,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:52:30,942 INFO L472 AbstractCegarLoop]: Abstraction has 44 states and 77 transitions. [2018-07-25 14:52:30,943 INFO L473 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-25 14:52:30,943 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 77 transitions. [2018-07-25 14:52:30,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-07-25 14:52:30,944 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:52:30,944 INFO L354 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2018-07-25 14:52:30,945 INFO L415 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:52:30,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1742811576, now seen corresponding path program 1 times [2018-07-25 14:52:30,945 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:52:36,130 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:52:36,130 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 14:52:36,131 INFO L451 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-25 14:52:36,131 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-25 14:52:36,132 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2018-07-25 14:52:36,132 INFO L87 Difference]: Start difference. First operand 44 states and 77 transitions. Second operand 6 states. [2018-07-25 14:52:36,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:52:36,419 INFO L93 Difference]: Finished difference Result 98 states and 173 transitions. [2018-07-25 14:52:36,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-25 14:52:36,420 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2018-07-25 14:52:36,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:52:36,425 INFO L225 Difference]: With dead ends: 98 [2018-07-25 14:52:36,425 INFO L226 Difference]: Without dead ends: 96 [2018-07-25 14:52:36,428 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 14493 GetRequests, 14446 SyntacticMatches, 32 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2018-07-25 14:52:36,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-07-25 14:52:36,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 89. [2018-07-25 14:52:36,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-07-25 14:52:36,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 159 transitions. [2018-07-25 14:52:36,457 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 159 transitions. Word has length 40 [2018-07-25 14:52:36,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:52:36,458 INFO L472 AbstractCegarLoop]: Abstraction has 89 states and 159 transitions. [2018-07-25 14:52:36,458 INFO L473 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-25 14:52:36,458 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 159 transitions. [2018-07-25 14:52:36,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-07-25 14:52:36,460 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:52:36,460 INFO L354 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 14:52:36,460 INFO L415 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:52:36,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1365476994, now seen corresponding path program 1 times [2018-07-25 14:52:36,461 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:52:52,624 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:52:52,625 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 14:52:52,626 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 14:52:52,626 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 14:52:52,627 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=633, Unknown=0, NotChecked=0, Total=870 [2018-07-25 14:52:52,627 INFO L87 Difference]: Start difference. First operand 89 states and 159 transitions. Second operand 7 states. [2018-07-25 14:52:52,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:52:52,884 INFO L93 Difference]: Finished difference Result 134 states and 238 transitions. [2018-07-25 14:52:52,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-25 14:52:52,885 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48 [2018-07-25 14:52:52,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:52:52,888 INFO L225 Difference]: With dead ends: 134 [2018-07-25 14:52:52,888 INFO L226 Difference]: Without dead ends: 132 [2018-07-25 14:52:52,892 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 33574 GetRequests, 33494 SyntacticMatches, 50 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1090 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=279, Invalid=713, Unknown=0, NotChecked=0, Total=992 [2018-07-25 14:52:52,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2018-07-25 14:52:52,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 81. [2018-07-25 14:52:52,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-07-25 14:52:52,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 145 transitions. [2018-07-25 14:52:52,936 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 145 transitions. Word has length 48 [2018-07-25 14:52:52,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:52:52,937 INFO L472 AbstractCegarLoop]: Abstraction has 81 states and 145 transitions. [2018-07-25 14:52:52,937 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 14:52:52,938 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 145 transitions. [2018-07-25 14:52:52,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-07-25 14:52:52,940 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:52:52,940 INFO L354 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 14:52:52,940 INFO L415 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:52:52,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1043959768, now seen corresponding path program 1 times [2018-07-25 14:52:52,941 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:53:02,711 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:53:02,712 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 14:53:02,713 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 14:53:02,713 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 14:53:02,713 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2018-07-25 14:53:02,714 INFO L87 Difference]: Start difference. First operand 81 states and 145 transitions. Second operand 7 states. [2018-07-25 14:53:02,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:53:02,945 INFO L93 Difference]: Finished difference Result 185 states and 332 transitions. [2018-07-25 14:53:02,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-25 14:53:02,946 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-07-25 14:53:02,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:53:02,948 INFO L225 Difference]: With dead ends: 185 [2018-07-25 14:53:02,948 INFO L226 Difference]: Without dead ends: 183 [2018-07-25 14:53:02,949 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 30237 GetRequests, 30176 SyntacticMatches, 41 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=130, Invalid=332, Unknown=0, NotChecked=0, Total=462 [2018-07-25 14:53:02,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2018-07-25 14:53:03,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 173. [2018-07-25 14:53:03,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2018-07-25 14:53:03,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 313 transitions. [2018-07-25 14:53:03,015 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 313 transitions. Word has length 51 [2018-07-25 14:53:03,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:53:03,015 INFO L472 AbstractCegarLoop]: Abstraction has 173 states and 313 transitions. [2018-07-25 14:53:03,015 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 14:53:03,016 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 313 transitions. [2018-07-25 14:53:03,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-07-25 14:53:03,017 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:53:03,018 INFO L354 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 14:53:03,018 INFO L415 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:53:03,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1888216802, now seen corresponding path program 1 times [2018-07-25 14:53:03,018 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:53:42,994 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:53:42,994 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-07-25 14:53:42,995 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 14:53:42,995 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 14:53:42,996 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=395, Invalid=1087, Unknown=0, NotChecked=0, Total=1482 [2018-07-25 14:53:43,001 INFO L87 Difference]: Start difference. First operand 173 states and 313 transitions. Second operand 8 states. [2018-07-25 14:53:43,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:53:43,417 INFO L93 Difference]: Finished difference Result 261 states and 470 transitions. [2018-07-25 14:53:43,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-07-25 14:53:43,418 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 59 [2018-07-25 14:53:43,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:53:43,420 INFO L225 Difference]: With dead ends: 261 [2018-07-25 14:53:43,425 INFO L226 Difference]: Without dead ends: 259 [2018-07-25 14:53:43,426 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 67672 GetRequests, 67567 SyntacticMatches, 65 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1927 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=467, Invalid=1255, Unknown=0, NotChecked=0, Total=1722 [2018-07-25 14:53:43,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2018-07-25 14:53:43,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 128. [2018-07-25 14:53:43,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2018-07-25 14:53:43,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 231 transitions. [2018-07-25 14:53:43,500 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 231 transitions. Word has length 59 [2018-07-25 14:53:43,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:53:43,506 INFO L472 AbstractCegarLoop]: Abstraction has 128 states and 231 transitions. [2018-07-25 14:53:43,507 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 14:53:43,507 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 231 transitions. [2018-07-25 14:53:43,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-07-25 14:53:43,509 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:53:43,512 INFO L354 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 14:53:43,512 INFO L415 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:53:43,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1864751960, now seen corresponding path program 1 times [2018-07-25 14:53:43,513 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:54:05,022 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:54:05,023 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-07-25 14:54:05,023 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 14:54:05,024 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 14:54:05,024 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2018-07-25 14:54:05,025 INFO L87 Difference]: Start difference. First operand 128 states and 231 transitions. Second operand 8 states. [2018-07-25 14:54:05,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:54:05,321 INFO L93 Difference]: Finished difference Result 268 states and 484 transitions. [2018-07-25 14:54:05,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-07-25 14:54:05,322 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2018-07-25 14:54:05,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:54:05,324 INFO L225 Difference]: With dead ends: 268 [2018-07-25 14:54:05,324 INFO L226 Difference]: Without dead ends: 266 [2018-07-25 14:54:05,325 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 53211 GetRequests, 53137 SyntacticMatches, 49 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 670 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=194, Invalid=508, Unknown=0, NotChecked=0, Total=702 [2018-07-25 14:54:05,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2018-07-25 14:54:05,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 252. [2018-07-25 14:54:05,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2018-07-25 14:54:05,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 457 transitions. [2018-07-25 14:54:05,399 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 457 transitions. Word has length 61 [2018-07-25 14:54:05,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:54:05,400 INFO L472 AbstractCegarLoop]: Abstraction has 252 states and 457 transitions. [2018-07-25 14:54:05,400 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 14:54:05,400 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 457 transitions. [2018-07-25 14:54:05,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-07-25 14:54:05,401 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:54:05,401 INFO L354 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 14:54:05,402 INFO L415 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:54:05,402 INFO L82 PathProgramCache]: Analyzing trace with hash -240826162, now seen corresponding path program 1 times [2018-07-25 14:54:05,402 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:55:31,834 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:55:31,835 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-07-25 14:55:31,835 INFO L451 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-25 14:55:31,836 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-25 14:55:31,837 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=596, Invalid=1660, Unknown=0, NotChecked=0, Total=2256 [2018-07-25 14:55:31,838 INFO L87 Difference]: Start difference. First operand 252 states and 457 transitions. Second operand 9 states. [2018-07-25 14:55:32,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:55:32,279 INFO L93 Difference]: Finished difference Result 406 states and 735 transitions. [2018-07-25 14:55:32,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-25 14:55:32,279 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2018-07-25 14:55:32,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:55:32,282 INFO L225 Difference]: With dead ends: 406 [2018-07-25 14:55:32,283 INFO L226 Difference]: Without dead ends: 404 [2018-07-25 14:55:32,284 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 117074 GetRequests, 116945 SyntacticMatches, 79 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2944 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=701, Invalid=1951, Unknown=0, NotChecked=0, Total=2652 [2018-07-25 14:55:32,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2018-07-25 14:55:32,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 185. [2018-07-25 14:55:32,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2018-07-25 14:55:32,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 335 transitions. [2018-07-25 14:55:32,349 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 335 transitions. Word has length 69 [2018-07-25 14:55:32,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:55:32,350 INFO L472 AbstractCegarLoop]: Abstraction has 185 states and 335 transitions. [2018-07-25 14:55:32,350 INFO L473 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-25 14:55:32,350 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 335 transitions. [2018-07-25 14:55:32,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-07-25 14:55:32,351 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:55:32,351 INFO L354 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 14:55:32,351 INFO L415 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:55:32,352 INFO L82 PathProgramCache]: Analyzing trace with hash 2078757358, now seen corresponding path program 1 times [2018-07-25 14:55:32,352 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:56:12,200 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:56:12,201 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-07-25 14:56:12,202 INFO L451 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-25 14:56:12,202 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-25 14:56:12,202 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=553, Unknown=0, NotChecked=0, Total=756 [2018-07-25 14:56:12,203 INFO L87 Difference]: Start difference. First operand 185 states and 335 transitions. Second operand 9 states. [2018-07-25 14:56:12,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:56:12,654 INFO L93 Difference]: Finished difference Result 353 states and 640 transitions. [2018-07-25 14:56:12,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-25 14:56:12,655 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2018-07-25 14:56:12,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:56:12,658 INFO L225 Difference]: With dead ends: 353 [2018-07-25 14:56:12,658 INFO L226 Difference]: Without dead ends: 351 [2018-07-25 14:56:12,659 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 83536 GetRequests, 83450 SyntacticMatches, 56 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 910 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2018-07-25 14:56:12,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2018-07-25 14:56:12,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 331. [2018-07-25 14:56:12,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 331 states. [2018-07-25 14:56:12,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 601 transitions. [2018-07-25 14:56:12,777 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 601 transitions. Word has length 70 [2018-07-25 14:56:12,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:56:12,778 INFO L472 AbstractCegarLoop]: Abstraction has 331 states and 601 transitions. [2018-07-25 14:56:12,778 INFO L473 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-25 14:56:12,778 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 601 transitions. [2018-07-25 14:56:12,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-07-25 14:56:12,780 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:56:12,780 INFO L354 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 14:56:12,780 INFO L415 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:56:12,780 INFO L82 PathProgramCache]: Analyzing trace with hash 927770936, now seen corresponding path program 1 times [2018-07-25 14:56:12,781 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy Received shutdown request... [2018-07-25 14:56:56,192 WARN L541 AbstractCegarLoop]: Verification canceled [2018-07-25 14:56:56,196 WARN L202 ceAbstractionStarter]: Timeout [2018-07-25 14:56:56,196 INFO L202 PluginConnector]: Adding new model s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.07 02:56:56 BoogieIcfgContainer [2018-07-25 14:56:56,196 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-25 14:56:56,197 INFO L168 Benchmark]: Toolchain (without parser) took 268441.50 ms. Allocated memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: -45.1 MB). Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 152.8 MB). Peak memory consumption was 107.7 MB. Max. memory is 7.1 GB. [2018-07-25 14:56:56,199 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 14:56:56,200 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 14:56:56,201 INFO L168 Benchmark]: Boogie Preprocessor took 70.43 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 14:56:56,201 INFO L168 Benchmark]: RCFGBuilder took 641.75 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. [2018-07-25 14:56:56,202 INFO L168 Benchmark]: TraceAbstraction took 267658.69 ms. Allocated memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: -45.1 MB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 131.6 MB). Peak memory consumption was 86.6 MB. Max. memory is 7.1 GB. [2018-07-25 14:56:56,206 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 64.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 70.43 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 641.75 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 267658.69 ms. Allocated memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: -45.1 MB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 131.6 MB). Peak memory consumption was 86.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 506]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 506). Cancelled while BasicCegarLoop was analyzing trace of length 79 with TraceHistMax 7, while Pdr was Timeout or canceled while running Pdr. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 1 error locations. TIMEOUT Result, 267.5s OverallTime, 10 OverallIterations, 7 TraceHistogramMax, 2.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 67 SDtfs, 1122 SDslu, 37 SDs, 0 SdLazy, 1006 SolverSat, 1113 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 403813 GetRequests, 403189 SyntacticMatches, 400 SemanticMatches, 224 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8336 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=331occurred in iteration=9, 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: 0.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 466 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 220.5s PdrRuntime, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/s3_srvr_3.cil.c_20.bpl_AutomizerBpl-pdr-smtinterpol.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-07-25_14-56-56-219.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/s3_srvr_3.cil.c_20.bpl_AutomizerBpl-pdr-smtinterpol.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-25_14-56-56-219.csv Completed graceful shutdown