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-nestedInterpolants.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_2.BV.c.cil.c_13.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-e6fd87c [2018-07-25 13:29:06,578 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-25 13:29:06,581 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-25 13:29:06,598 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-25 13:29:06,598 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-25 13:29:06,600 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-25 13:29:06,601 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-25 13:29:06,605 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-25 13:29:06,607 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-25 13:29:06,608 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-25 13:29:06,611 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-25 13:29:06,611 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-25 13:29:06,612 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-25 13:29:06,613 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-25 13:29:06,616 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-25 13:29:06,623 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-25 13:29:06,628 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-25 13:29:06,631 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-25 13:29:06,636 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-25 13:29:06,640 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-25 13:29:06,642 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-25 13:29:06,643 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-25 13:29:06,648 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-25 13:29:06,648 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-25 13:29:06,648 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-25 13:29:06,649 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-25 13:29:06,651 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-25 13:29:06,652 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-25 13:29:06,653 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-25 13:29:06,654 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-25 13:29:06,654 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-25 13:29:06,655 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-25 13:29:06,660 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-nestedInterpolants.epf [2018-07-25 13:29:06,673 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-25 13:29:06,674 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-25 13:29:06,678 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-25 13:29:06,679 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-25 13:29:06,679 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-25 13:29:06,679 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-07-25 13:29:06,679 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-25 13:29:06,680 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-25 13:29:06,726 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-25 13:29:06,739 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-25 13:29:06,744 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-25 13:29:06,747 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-25 13:29:06,748 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-25 13:29:06,749 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_2.BV.c.cil.c_13.bpl [2018-07-25 13:29:06,749 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_2.BV.c.cil.c_13.bpl' [2018-07-25 13:29:06,830 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-25 13:29:06,832 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-07-25 13:29:06,833 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-25 13:29:06,833 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-25 13:29:06,833 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-25 13:29:06,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "s3_srvr_2.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:29:06" (1/1) ... [2018-07-25 13:29:06,871 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "s3_srvr_2.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:29:06" (1/1) ... [2018-07-25 13:29:06,878 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-25 13:29:06,879 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-25 13:29:06,880 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-25 13:29:06,880 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-25 13:29:06,891 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "s3_srvr_2.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:29:06" (1/1) ... [2018-07-25 13:29:06,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "s3_srvr_2.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:29:06" (1/1) ... [2018-07-25 13:29:06,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "s3_srvr_2.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:29:06" (1/1) ... [2018-07-25 13:29:06,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "s3_srvr_2.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:29:06" (1/1) ... [2018-07-25 13:29:06,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "s3_srvr_2.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:29:06" (1/1) ... [2018-07-25 13:29:06,907 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "s3_srvr_2.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:29:06" (1/1) ... [2018-07-25 13:29:06,909 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "s3_srvr_2.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:29:06" (1/1) ... [2018-07-25 13:29:06,914 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-25 13:29:06,914 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-25 13:29:06,914 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-25 13:29:06,915 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-25 13:29:06,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "s3_srvr_2.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:29:06" (1/1) ... [2018-07-25 13:29:07,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-25 13:29:07,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-25 13:29:07,430 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-25 13:29:07,431 INFO L202 PluginConnector]: Adding new model s3_srvr_2.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 01:29:07 BoogieIcfgContainer [2018-07-25 13:29:07,431 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-25 13:29:07,433 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-25 13:29:07,433 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-25 13:29:07,436 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-25 13:29:07,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "s3_srvr_2.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:29:06" (1/2) ... [2018-07-25 13:29:07,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40b3928e and model type s3_srvr_2.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.07 01:29:07, skipping insertion in model container [2018-07-25 13:29:07,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "s3_srvr_2.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 01:29:07" (2/2) ... [2018-07-25 13:29:07,441 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_srvr_2.BV.c.cil.c_13.bpl [2018-07-25 13:29:07,452 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-07-25 13:29:07,461 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-25 13:29:07,508 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-25 13:29:07,509 INFO L374 AbstractCegarLoop]: Interprodecural is true [2018-07-25 13:29:07,509 INFO L375 AbstractCegarLoop]: Hoare is true [2018-07-25 13:29:07,509 INFO L376 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-07-25 13:29:07,509 INFO L377 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-25 13:29:07,509 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-25 13:29:07,509 INFO L379 AbstractCegarLoop]: Difference is false [2018-07-25 13:29:07,510 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-25 13:29:07,510 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-25 13:29:07,524 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2018-07-25 13:29:07,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-07-25 13:29:07,533 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:29:07,534 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 13:29:07,535 INFO L415 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:29:07,541 INFO L82 PathProgramCache]: Analyzing trace with hash 212232727, now seen corresponding path program 1 times [2018-07-25 13:29:07,548 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:29:07,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 13:29:07,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 13:29:07,686 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 13:29:07,686 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-25 13:29:07,691 INFO L451 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-25 13:29:07,703 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-25 13:29:07,704 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 13:29:07,706 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 3 states. [2018-07-25 13:29:07,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 13:29:07,784 INFO L93 Difference]: Finished difference Result 26 states and 39 transitions. [2018-07-25 13:29:07,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-25 13:29:07,792 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-07-25 13:29:07,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 13:29:07,807 INFO L225 Difference]: With dead ends: 26 [2018-07-25 13:29:07,807 INFO L226 Difference]: Without dead ends: 16 [2018-07-25 13:29:07,811 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 13:29:07,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-07-25 13:29:07,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-07-25 13:29:07,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-07-25 13:29:07,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 23 transitions. [2018-07-25 13:29:07,863 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 23 transitions. Word has length 8 [2018-07-25 13:29:07,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 13:29:07,863 INFO L472 AbstractCegarLoop]: Abstraction has 16 states and 23 transitions. [2018-07-25 13:29:07,863 INFO L473 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-25 13:29:07,864 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 23 transitions. [2018-07-25 13:29:07,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-07-25 13:29:07,865 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:29:07,865 INFO L354 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 13:29:07,866 INFO L415 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:29:07,866 INFO L82 PathProgramCache]: Analyzing trace with hash -250815121, now seen corresponding path program 1 times [2018-07-25 13:29:07,866 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:29:07,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 13:29:07,959 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 13:29:07,959 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 13:29:07,960 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-25 13:29:07,961 INFO L451 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-25 13:29:07,962 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-25 13:29:07,962 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 13:29:07,962 INFO L87 Difference]: Start difference. First operand 16 states and 23 transitions. Second operand 3 states. [2018-07-25 13:29:08,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 13:29:08,018 INFO L93 Difference]: Finished difference Result 31 states and 45 transitions. [2018-07-25 13:29:08,018 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-25 13:29:08,018 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-07-25 13:29:08,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 13:29:08,023 INFO L225 Difference]: With dead ends: 31 [2018-07-25 13:29:08,024 INFO L226 Difference]: Without dead ends: 29 [2018-07-25 13:29:08,026 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 13:29:08,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-07-25 13:29:08,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-07-25 13:29:08,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-07-25 13:29:08,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 43 transitions. [2018-07-25 13:29:08,034 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 43 transitions. Word has length 11 [2018-07-25 13:29:08,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 13:29:08,035 INFO L472 AbstractCegarLoop]: Abstraction has 29 states and 43 transitions. [2018-07-25 13:29:08,035 INFO L473 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-25 13:29:08,035 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2018-07-25 13:29:08,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-07-25 13:29:08,036 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:29:08,036 INFO L354 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 13:29:08,036 INFO L415 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:29:08,037 INFO L82 PathProgramCache]: Analyzing trace with hash 180957294, now seen corresponding path program 1 times [2018-07-25 13:29:08,037 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:29:08,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 13:29:08,069 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-25 13:29:08,069 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 13:29:08,069 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-25 13:29:08,070 INFO L451 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-25 13:29:08,070 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-25 13:29:08,070 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 13:29:08,071 INFO L87 Difference]: Start difference. First operand 29 states and 43 transitions. Second operand 3 states. [2018-07-25 13:29:08,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 13:29:08,099 INFO L93 Difference]: Finished difference Result 65 states and 97 transitions. [2018-07-25 13:29:08,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-25 13:29:08,100 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-07-25 13:29:08,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 13:29:08,101 INFO L225 Difference]: With dead ends: 65 [2018-07-25 13:29:08,101 INFO L226 Difference]: Without dead ends: 37 [2018-07-25 13:29:08,102 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 13:29:08,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-07-25 13:29:08,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-07-25 13:29:08,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-07-25 13:29:08,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions. [2018-07-25 13:29:08,113 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 51 transitions. Word has length 17 [2018-07-25 13:29:08,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 13:29:08,113 INFO L472 AbstractCegarLoop]: Abstraction has 37 states and 51 transitions. [2018-07-25 13:29:08,113 INFO L473 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-25 13:29:08,113 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2018-07-25 13:29:08,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-07-25 13:29:08,114 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:29:08,115 INFO L354 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 13:29:08,115 INFO L415 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:29:08,115 INFO L82 PathProgramCache]: Analyzing trace with hash -1338834922, now seen corresponding path program 1 times [2018-07-25 13:29:08,115 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:29:08,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 13:29:08,157 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-25 13:29:08,158 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 13:29:08,158 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-25 13:29:08,159 INFO L451 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-25 13:29:08,159 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-25 13:29:08,159 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 13:29:08,160 INFO L87 Difference]: Start difference. First operand 37 states and 51 transitions. Second operand 3 states. [2018-07-25 13:29:08,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 13:29:08,222 INFO L93 Difference]: Finished difference Result 83 states and 117 transitions. [2018-07-25 13:29:08,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-25 13:29:08,222 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2018-07-25 13:29:08,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 13:29:08,226 INFO L225 Difference]: With dead ends: 83 [2018-07-25 13:29:08,226 INFO L226 Difference]: Without dead ends: 47 [2018-07-25 13:29:08,227 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 13:29:08,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-07-25 13:29:08,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 44. [2018-07-25 13:29:08,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-07-25 13:29:08,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 56 transitions. [2018-07-25 13:29:08,244 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 56 transitions. Word has length 20 [2018-07-25 13:29:08,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 13:29:08,245 INFO L472 AbstractCegarLoop]: Abstraction has 44 states and 56 transitions. [2018-07-25 13:29:08,245 INFO L473 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-25 13:29:08,245 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 56 transitions. [2018-07-25 13:29:08,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-07-25 13:29:08,246 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:29:08,247 INFO L354 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 13:29:08,247 INFO L415 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:29:08,247 INFO L82 PathProgramCache]: Analyzing trace with hash -18544326, now seen corresponding path program 1 times [2018-07-25 13:29:08,248 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:29:08,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 13:29:08,299 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 13:29:08,300 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-25 13:29:08,300 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-07-25 13:29:08,301 INFO L451 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-25 13:29:08,301 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-25 13:29:08,301 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-25 13:29:08,302 INFO L87 Difference]: Start difference. First operand 44 states and 56 transitions. Second operand 5 states. [2018-07-25 13:29:08,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 13:29:08,393 INFO L93 Difference]: Finished difference Result 129 states and 166 transitions. [2018-07-25 13:29:08,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-25 13:29:08,394 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2018-07-25 13:29:08,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 13:29:08,399 INFO L225 Difference]: With dead ends: 129 [2018-07-25 13:29:08,399 INFO L226 Difference]: Without dead ends: 86 [2018-07-25 13:29:08,403 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-25 13:29:08,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-07-25 13:29:08,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 67. [2018-07-25 13:29:08,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-07-25 13:29:08,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 83 transitions. [2018-07-25 13:29:08,426 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 83 transitions. Word has length 21 [2018-07-25 13:29:08,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 13:29:08,427 INFO L472 AbstractCegarLoop]: Abstraction has 67 states and 83 transitions. [2018-07-25 13:29:08,427 INFO L473 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-25 13:29:08,427 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 83 transitions. [2018-07-25 13:29:08,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-07-25 13:29:08,428 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:29:08,429 INFO L354 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 13:29:08,429 INFO L415 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:29:08,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1570940154, now seen corresponding path program 1 times [2018-07-25 13:29:08,430 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:29:08,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 13:29:08,467 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-07-25 13:29:08,468 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 13:29:08,468 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-25 13:29:08,468 INFO L451 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-25 13:29:08,469 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-25 13:29:08,469 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 13:29:08,470 INFO L87 Difference]: Start difference. First operand 67 states and 83 transitions. Second operand 3 states. [2018-07-25 13:29:08,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 13:29:08,502 INFO L93 Difference]: Finished difference Result 137 states and 171 transitions. [2018-07-25 13:29:08,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-25 13:29:08,503 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2018-07-25 13:29:08,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 13:29:08,504 INFO L225 Difference]: With dead ends: 137 [2018-07-25 13:29:08,504 INFO L226 Difference]: Without dead ends: 71 [2018-07-25 13:29:08,510 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 13:29:08,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-07-25 13:29:08,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 69. [2018-07-25 13:29:08,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-07-25 13:29:08,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 86 transitions. [2018-07-25 13:29:08,536 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 86 transitions. Word has length 23 [2018-07-25 13:29:08,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 13:29:08,536 INFO L472 AbstractCegarLoop]: Abstraction has 69 states and 86 transitions. [2018-07-25 13:29:08,536 INFO L473 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-25 13:29:08,537 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 86 transitions. [2018-07-25 13:29:08,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-07-25 13:29:08,538 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:29:08,538 INFO L354 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 4, 2, 2, 1, 1, 1, 1, 1, 1] [2018-07-25 13:29:08,539 INFO L415 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:29:08,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1576186804, now seen corresponding path program 1 times [2018-07-25 13:29:08,539 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:29:08,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 13:29:08,585 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2018-07-25 13:29:08,585 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 13:29:08,585 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-25 13:29:08,587 INFO L451 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-25 13:29:08,588 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-25 13:29:08,588 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 13:29:08,588 INFO L87 Difference]: Start difference. First operand 69 states and 86 transitions. Second operand 3 states. [2018-07-25 13:29:08,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 13:29:08,638 INFO L93 Difference]: Finished difference Result 142 states and 178 transitions. [2018-07-25 13:29:08,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-25 13:29:08,639 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2018-07-25 13:29:08,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 13:29:08,640 INFO L225 Difference]: With dead ends: 142 [2018-07-25 13:29:08,641 INFO L226 Difference]: Without dead ends: 71 [2018-07-25 13:29:08,642 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 13:29:08,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-07-25 13:29:08,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2018-07-25 13:29:08,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-07-25 13:29:08,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 84 transitions. [2018-07-25 13:29:08,666 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 84 transitions. Word has length 36 [2018-07-25 13:29:08,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 13:29:08,667 INFO L472 AbstractCegarLoop]: Abstraction has 71 states and 84 transitions. [2018-07-25 13:29:08,667 INFO L473 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-25 13:29:08,668 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 84 transitions. [2018-07-25 13:29:08,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-07-25 13:29:08,670 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:29:08,671 INFO L354 BasicCegarLoop]: trace histogram [8, 7, 7, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2018-07-25 13:29:08,671 INFO L415 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:29:08,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1527084167, now seen corresponding path program 1 times [2018-07-25 13:29:08,672 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:29:08,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 13:29:08,733 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 85 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-07-25 13:29:08,734 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-25 13:29:08,734 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2018-07-25 13:29:08,735 INFO L451 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-25 13:29:08,735 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-25 13:29:08,735 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-25 13:29:08,736 INFO L87 Difference]: Start difference. First operand 71 states and 84 transitions. Second operand 4 states. [2018-07-25 13:29:08,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 13:29:08,825 INFO L93 Difference]: Finished difference Result 145 states and 172 transitions. [2018-07-25 13:29:08,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-25 13:29:08,826 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2018-07-25 13:29:08,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 13:29:08,827 INFO L225 Difference]: With dead ends: 145 [2018-07-25 13:29:08,827 INFO L226 Difference]: Without dead ends: 0 [2018-07-25 13:29:08,829 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-25 13:29:08,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-25 13:29:08,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-25 13:29:08,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-25 13:29:08,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-25 13:29:08,833 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2018-07-25 13:29:08,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 13:29:08,833 INFO L472 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-25 13:29:08,833 INFO L473 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-25 13:29:08,833 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-25 13:29:08,834 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-25 13:29:08,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-25 13:29:08,868 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 13:29:08,875 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 13:29:08,876 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 13:29:08,877 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 13:29:08,880 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 13:29:09,190 INFO L422 ceAbstractionStarter]: For program point L283(lines 283 302) no Hoare annotation was computed. [2018-07-25 13:29:09,194 INFO L418 ceAbstractionStarter]: At program point L275(lines 238 275) the Hoare annotation is: (let ((.cse1 (not (= 8448 ULTIMATE.start_ssl3_accept_~s__state~4))) (.cse2 (<= ULTIMATE.start_ssl3_accept_~blastFlag~4 3)) (.cse0 (not (= 8496 ULTIMATE.start_ssl3_accept_~s__state~4)))) (or (and (= ULTIMATE.start_ssl3_accept_~blastFlag~4 2) .cse0 .cse1) (and (not (= 8656 ULTIMATE.start_ssl3_accept_~s__state~4)) .cse2 .cse0 .cse1) (and (<= 8640 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~4) .cse2 .cse0) (= ULTIMATE.start_ssl3_accept_~blastFlag~4 1))) [2018-07-25 13:29:09,195 INFO L418 ceAbstractionStarter]: At program point L271(lines 271 284) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_accept_~blastFlag~4 3)) (.cse1 (not (= 8496 ULTIMATE.start_ssl3_accept_~s__state~4)))) (or (and (<= 8640 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~4) .cse0 .cse1) (and .cse0 .cse1 (not (= 8448 ULTIMATE.start_ssl3_accept_~s__state~4))) (= ULTIMATE.start_ssl3_accept_~blastFlag~4 1))) [2018-07-25 13:29:09,195 INFO L425 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 2 380) the Hoare annotation is: true [2018-07-25 13:29:09,196 INFO L422 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 2 380) no Hoare annotation was computed. [2018-07-25 13:29:09,196 INFO L418 ceAbstractionStarter]: At program point L251(lines 251 267) the Hoare annotation is: (let ((.cse1 (not (= 8448 ULTIMATE.start_ssl3_accept_~s__state~4))) (.cse2 (<= ULTIMATE.start_ssl3_accept_~blastFlag~4 3)) (.cse0 (not (= 8496 ULTIMATE.start_ssl3_accept_~s__state~4)))) (or (and (= ULTIMATE.start_ssl3_accept_~blastFlag~4 2) .cse0 .cse1) (and (not (= 8656 ULTIMATE.start_ssl3_accept_~s__state~4)) .cse2 .cse0 .cse1) (and (<= 8640 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~4) .cse2 .cse0) (= ULTIMATE.start_ssl3_accept_~blastFlag~4 1))) [2018-07-25 13:29:09,197 INFO L418 ceAbstractionStarter]: At program point L371(lines 371 378) the Hoare annotation is: false [2018-07-25 13:29:09,197 INFO L418 ceAbstractionStarter]: At program point ULTIMATE.startEXIT(lines 2 380) the Hoare annotation is: false [2018-07-25 13:29:09,197 INFO L422 ceAbstractionStarter]: For program point L306(lines 301 325) no Hoare annotation was computed. [2018-07-25 13:29:09,200 INFO L418 ceAbstractionStarter]: At program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 379) the Hoare annotation is: false [2018-07-25 13:29:09,200 INFO L418 ceAbstractionStarter]: At program point L348(lines 348 368) the Hoare annotation is: (and (not (= 8656 ULTIMATE.start_ssl3_accept_~s__state~4)) (<= 8656 ULTIMATE.start_ssl3_accept_~s__state~4) (<= ULTIMATE.start_ssl3_accept_~blastFlag~4 3)) [2018-07-25 13:29:09,201 INFO L418 ceAbstractionStarter]: At program point L377(lines 266 377) the Hoare annotation is: (let ((.cse0 (<= 8656 ULTIMATE.start_ssl3_accept_~s__state~4)) (.cse1 (<= ULTIMATE.start_ssl3_accept_~blastFlag~4 3))) (or (and .cse0 (= ULTIMATE.start_ssl3_accept_~blastFlag~4 2)) (and (<= 8640 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~4) .cse1 (not (= 8496 ULTIMATE.start_ssl3_accept_~s__state~4))) (and (not (= 8656 ULTIMATE.start_ssl3_accept_~s__state~4)) .cse0 .cse1) (= ULTIMATE.start_ssl3_accept_~blastFlag~4 1))) [2018-07-25 13:29:09,201 INFO L422 ceAbstractionStarter]: For program point L340(lines 340 355) no Hoare annotation was computed. [2018-07-25 13:29:09,202 INFO L418 ceAbstractionStarter]: At program point L295(lines 295 314) the Hoare annotation is: (let ((.cse1 (<= ULTIMATE.start_ssl3_accept_~blastFlag~4 3)) (.cse0 (not (= 8496 ULTIMATE.start_ssl3_accept_~s__state~4)))) (or (and (= ULTIMATE.start_ssl3_accept_~blastFlag~4 1) .cse0) (and (<= 8640 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~4) .cse1 .cse0) (and .cse1 .cse0 (not (= 8448 ULTIMATE.start_ssl3_accept_~s__state~4))))) [2018-07-25 13:29:09,204 INFO L422 ceAbstractionStarter]: For program point L357(lines 354 372) no Hoare annotation was computed. [2018-07-25 13:29:09,204 INFO L418 ceAbstractionStarter]: At program point L324(lines 324 341) the Hoare annotation is: (let ((.cse0 (not (= 8496 ULTIMATE.start_ssl3_accept_~s__state~4))) (.cse1 (not (= 8448 ULTIMATE.start_ssl3_accept_~s__state~4)))) (or (and (not (= 8656 ULTIMATE.start_ssl3_accept_~s__state~4)) (not (= 8672 ULTIMATE.start_ssl3_accept_~s__state~4)) .cse0 .cse1) (and (and (<= ULTIMATE.start_ssl3_accept_~blastFlag~4 3) .cse0) .cse1))) [2018-07-25 13:29:09,223 INFO L202 PluginConnector]: Adding new model s3_srvr_2.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.07 01:29:09 BoogieIcfgContainer [2018-07-25 13:29:09,224 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-25 13:29:09,225 INFO L168 Benchmark]: Toolchain (without parser) took 2393.91 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 158.6 MB). Peak memory consumption was 158.6 MB. Max. memory is 7.1 GB. [2018-07-25 13:29:09,228 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.16 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 13:29:09,229 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.09 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 13:29:09,229 INFO L168 Benchmark]: Boogie Preprocessor took 34.42 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 13:29:09,230 INFO L168 Benchmark]: RCFGBuilder took 517.11 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-07-25 13:29:09,233 INFO L168 Benchmark]: TraceAbstraction took 1791.29 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-07-25 13:29:09,244 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 0.16 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 46.09 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 34.42 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 517.11 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1791.29 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 379]: 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 - InvariantResult [Line: 271]: Loop Invariant Derived loop invariant: (((8640 <= ssl3_accept_~s__s3__tmp__next_state___0~4 && ssl3_accept_~blastFlag~4 <= 3) && !(8496 == ssl3_accept_~s__state~4)) || ((ssl3_accept_~blastFlag~4 <= 3 && !(8496 == ssl3_accept_~s__state~4)) && !(8448 == ssl3_accept_~s__state~4))) || ssl3_accept_~blastFlag~4 == 1 - InvariantResult [Line: 324]: Loop Invariant Derived loop invariant: (((!(8656 == ssl3_accept_~s__state~4) && !(8672 == ssl3_accept_~s__state~4)) && !(8496 == ssl3_accept_~s__state~4)) && !(8448 == ssl3_accept_~s__state~4)) || ((ssl3_accept_~blastFlag~4 <= 3 && !(8496 == ssl3_accept_~s__state~4)) && !(8448 == ssl3_accept_~s__state~4)) - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: (((8656 <= ssl3_accept_~s__state~4 && ssl3_accept_~blastFlag~4 == 2) || ((8640 <= ssl3_accept_~s__s3__tmp__next_state___0~4 && ssl3_accept_~blastFlag~4 <= 3) && !(8496 == ssl3_accept_~s__state~4))) || ((!(8656 == ssl3_accept_~s__state~4) && 8656 <= ssl3_accept_~s__state~4) && ssl3_accept_~blastFlag~4 <= 3)) || ssl3_accept_~blastFlag~4 == 1 - InvariantResult [Line: 371]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 251]: Loop Invariant Derived loop invariant: ((((ssl3_accept_~blastFlag~4 == 2 && !(8496 == ssl3_accept_~s__state~4)) && !(8448 == ssl3_accept_~s__state~4)) || (((!(8656 == ssl3_accept_~s__state~4) && ssl3_accept_~blastFlag~4 <= 3) && !(8496 == ssl3_accept_~s__state~4)) && !(8448 == ssl3_accept_~s__state~4))) || ((8640 <= ssl3_accept_~s__s3__tmp__next_state___0~4 && ssl3_accept_~blastFlag~4 <= 3) && !(8496 == ssl3_accept_~s__state~4))) || ssl3_accept_~blastFlag~4 == 1 - InvariantResult [Line: 295]: Loop Invariant Derived loop invariant: ((ssl3_accept_~blastFlag~4 == 1 && !(8496 == ssl3_accept_~s__state~4)) || ((8640 <= ssl3_accept_~s__s3__tmp__next_state___0~4 && ssl3_accept_~blastFlag~4 <= 3) && !(8496 == ssl3_accept_~s__state~4))) || ((ssl3_accept_~blastFlag~4 <= 3 && !(8496 == ssl3_accept_~s__state~4)) && !(8448 == ssl3_accept_~s__state~4)) - InvariantResult [Line: 348]: Loop Invariant Derived loop invariant: (!(8656 == ssl3_accept_~s__state~4) && 8656 <= ssl3_accept_~s__state~4) && ssl3_accept_~blastFlag~4 <= 3 - InvariantResult [Line: 238]: Loop Invariant Derived loop invariant: ((((ssl3_accept_~blastFlag~4 == 2 && !(8496 == ssl3_accept_~s__state~4)) && !(8448 == ssl3_accept_~s__state~4)) || (((!(8656 == ssl3_accept_~s__state~4) && ssl3_accept_~blastFlag~4 <= 3) && !(8496 == ssl3_accept_~s__state~4)) && !(8448 == ssl3_accept_~s__state~4))) || ((8640 <= ssl3_accept_~s__s3__tmp__next_state___0~4 && ssl3_accept_~blastFlag~4 <= 3) && !(8496 == ssl3_accept_~s__state~4))) || ssl3_accept_~blastFlag~4 == 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 1 error locations. SAFE Result, 1.7s OverallTime, 8 OverallIterations, 8 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 98 SDtfs, 37 SDslu, 61 SDs, 0 SdLazy, 137 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred in iteration=7, 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: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 24 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 92 NumberOfFragments, 224 HoareAnnotationTreeSize, 11 FomulaSimplifications, 1667 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 11 FomulaSimplificationsInter, 615 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 179 NumberOfCodeBlocks, 179 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 171 ConstructedInterpolants, 0 QuantifiedInterpolants, 7443 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 246/264 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/s3_srvr_2.BV.c.cil.c_13.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-07-25_13-29-09-280.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/s3_srvr_2.BV.c.cil.c_13.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-25_13-29-09-280.csv Received shutdown request...