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_7.cil.c_19.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-e6fd87c [2018-07-25 08:49:53,617 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-25 08:49:53,619 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-25 08:49:53,638 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-25 08:49:53,639 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-25 08:49:53,640 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-25 08:49:53,642 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-25 08:49:53,645 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-25 08:49:53,647 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-25 08:49:53,649 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-25 08:49:53,650 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-25 08:49:53,652 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-25 08:49:53,653 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-25 08:49:53,656 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-25 08:49:53,657 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-25 08:49:53,658 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-25 08:49:53,658 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-25 08:49:53,660 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-25 08:49:53,662 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-25 08:49:53,664 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-25 08:49:53,665 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-25 08:49:53,666 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-25 08:49:53,669 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-25 08:49:53,669 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-25 08:49:53,669 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-25 08:49:53,670 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-25 08:49:53,671 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-25 08:49:53,672 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-25 08:49:53,673 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-25 08:49:53,674 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-25 08:49:53,674 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-25 08:49:53,675 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-25 08:49:53,677 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-nestedInterpolants.epf [2018-07-25 08:49:53,691 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-25 08:49:53,691 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-25 08:49:53,693 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-25 08:49:53,693 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-25 08:49:53,693 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-25 08:49:53,693 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-07-25 08:49:53,694 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-25 08:49:53,694 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-25 08:49:53,737 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-25 08:49:53,755 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-25 08:49:53,763 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-25 08:49:53,765 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-25 08:49:53,766 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-25 08:49:53,767 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_7.cil.c_19.bpl [2018-07-25 08:49:53,767 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_7.cil.c_19.bpl' [2018-07-25 08:49:53,871 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-25 08:49:53,873 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-07-25 08:49:53,874 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-25 08:49:53,874 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-25 08:49:53,874 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-25 08:49:53,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "s3_srvr_7.cil.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:53" (1/1) ... [2018-07-25 08:49:53,912 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "s3_srvr_7.cil.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:53" (1/1) ... [2018-07-25 08:49:53,925 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-25 08:49:53,926 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-25 08:49:53,926 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-25 08:49:53,926 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-25 08:49:53,938 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "s3_srvr_7.cil.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:53" (1/1) ... [2018-07-25 08:49:53,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "s3_srvr_7.cil.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:53" (1/1) ... [2018-07-25 08:49:53,941 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "s3_srvr_7.cil.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:53" (1/1) ... [2018-07-25 08:49:53,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "s3_srvr_7.cil.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:53" (1/1) ... [2018-07-25 08:49:53,949 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "s3_srvr_7.cil.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:53" (1/1) ... [2018-07-25 08:49:53,952 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "s3_srvr_7.cil.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:53" (1/1) ... [2018-07-25 08:49:53,955 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "s3_srvr_7.cil.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:53" (1/1) ... [2018-07-25 08:49:53,959 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-25 08:49:53,960 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-25 08:49:53,960 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-25 08:49:53,960 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-25 08:49:53,961 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "s3_srvr_7.cil.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:53" (1/1) ... [2018-07-25 08:49:54,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-25 08:49:54,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-25 08:49:54,457 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-25 08:49:54,458 INFO L202 PluginConnector]: Adding new model s3_srvr_7.cil.c_19.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 08:49:54 BoogieIcfgContainer [2018-07-25 08:49:54,458 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-25 08:49:54,460 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-25 08:49:54,460 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-25 08:49:54,469 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-25 08:49:54,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "s3_srvr_7.cil.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:53" (1/2) ... [2018-07-25 08:49:54,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e9585c6 and model type s3_srvr_7.cil.c_19.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.07 08:49:54, skipping insertion in model container [2018-07-25 08:49:54,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "s3_srvr_7.cil.c_19.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 08:49:54" (2/2) ... [2018-07-25 08:49:54,479 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_srvr_7.cil.c_19.bpl [2018-07-25 08:49:54,501 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-07-25 08:49:54,510 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-25 08:49:54,553 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-25 08:49:54,554 INFO L374 AbstractCegarLoop]: Interprodecural is true [2018-07-25 08:49:54,554 INFO L375 AbstractCegarLoop]: Hoare is true [2018-07-25 08:49:54,555 INFO L376 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-07-25 08:49:54,555 INFO L377 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-25 08:49:54,555 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-25 08:49:54,555 INFO L379 AbstractCegarLoop]: Difference is false [2018-07-25 08:49:54,555 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-25 08:49:54,556 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-25 08:49:54,568 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2018-07-25 08:49:54,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-25 08:49:54,577 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:49:54,578 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:49:54,580 INFO L415 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:49:54,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1807955439, now seen corresponding path program 1 times [2018-07-25 08:49:54,592 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:49:54,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:49:54,719 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 08:49:54,721 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:49:54,722 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-25 08:49:54,730 INFO L451 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-25 08:49:54,745 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-25 08:49:54,746 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 08:49:54,750 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 3 states. [2018-07-25 08:49:54,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:49:54,824 INFO L93 Difference]: Finished difference Result 21 states and 30 transitions. [2018-07-25 08:49:54,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-25 08:49:54,826 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-07-25 08:49:54,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:49:54,839 INFO L225 Difference]: With dead ends: 21 [2018-07-25 08:49:54,839 INFO L226 Difference]: Without dead ends: 12 [2018-07-25 08:49:54,843 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 08:49:54,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-07-25 08:49:54,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-07-25 08:49:54,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-07-25 08:49:54,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2018-07-25 08:49:54,889 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 15 transitions. Word has length 7 [2018-07-25 08:49:54,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:49:54,889 INFO L472 AbstractCegarLoop]: Abstraction has 12 states and 15 transitions. [2018-07-25 08:49:54,889 INFO L473 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-25 08:49:54,890 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2018-07-25 08:49:54,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-07-25 08:49:54,890 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:49:54,890 INFO L354 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:49:54,891 INFO L415 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:49:54,891 INFO L82 PathProgramCache]: Analyzing trace with hash 1100281751, now seen corresponding path program 1 times [2018-07-25 08:49:54,891 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:49:54,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:49:54,928 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 08:49:54,928 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:49:54,929 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-25 08:49:54,930 INFO L451 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-25 08:49:54,931 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-25 08:49:54,931 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 08:49:54,931 INFO L87 Difference]: Start difference. First operand 12 states and 15 transitions. Second operand 3 states. [2018-07-25 08:49:54,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:49:54,992 INFO L93 Difference]: Finished difference Result 25 states and 33 transitions. [2018-07-25 08:49:54,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-25 08:49:54,993 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-07-25 08:49:54,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:49:54,996 INFO L225 Difference]: With dead ends: 25 [2018-07-25 08:49:54,996 INFO L226 Difference]: Without dead ends: 16 [2018-07-25 08:49:54,998 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 08:49:54,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-07-25 08:49:55,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-07-25 08:49:55,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-07-25 08:49:55,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2018-07-25 08:49:55,009 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 10 [2018-07-25 08:49:55,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:49:55,009 INFO L472 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2018-07-25 08:49:55,009 INFO L473 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-25 08:49:55,010 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2018-07-25 08:49:55,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-07-25 08:49:55,010 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:49:55,010 INFO L354 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:49:55,011 INFO L415 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:49:55,011 INFO L82 PathProgramCache]: Analyzing trace with hash -2082374887, now seen corresponding path program 1 times [2018-07-25 08:49:55,011 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:49:55,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:49:55,070 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-25 08:49:55,071 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:49:55,071 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-25 08:49:55,071 INFO L451 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-25 08:49:55,072 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-25 08:49:55,072 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 08:49:55,072 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 3 states. [2018-07-25 08:49:55,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:49:55,106 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions. [2018-07-25 08:49:55,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-25 08:49:55,107 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-07-25 08:49:55,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:49:55,108 INFO L225 Difference]: With dead ends: 36 [2018-07-25 08:49:55,108 INFO L226 Difference]: Without dead ends: 23 [2018-07-25 08:49:55,109 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 08:49:55,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-07-25 08:49:55,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2018-07-25 08:49:55,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-07-25 08:49:55,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2018-07-25 08:49:55,121 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 14 [2018-07-25 08:49:55,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:49:55,121 INFO L472 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2018-07-25 08:49:55,122 INFO L473 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-25 08:49:55,122 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2018-07-25 08:49:55,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-07-25 08:49:55,123 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:49:55,124 INFO L354 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 08:49:55,124 INFO L415 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:49:55,125 INFO L82 PathProgramCache]: Analyzing trace with hash 471489091, now seen corresponding path program 1 times [2018-07-25 08:49:55,126 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:49:55,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:49:55,190 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-25 08:49:55,190 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-25 08:49:55,190 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2018-07-25 08:49:55,191 INFO L451 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-25 08:49:55,191 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-25 08:49:55,192 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-25 08:49:55,192 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand 4 states. [2018-07-25 08:49:55,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:49:55,278 INFO L93 Difference]: Finished difference Result 49 states and 59 transitions. [2018-07-25 08:49:55,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-25 08:49:55,278 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-07-25 08:49:55,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:49:55,279 INFO L225 Difference]: With dead ends: 49 [2018-07-25 08:49:55,280 INFO L226 Difference]: Without dead ends: 30 [2018-07-25 08:49:55,280 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-25 08:49:55,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-07-25 08:49:55,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2018-07-25 08:49:55,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-07-25 08:49:55,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2018-07-25 08:49:55,295 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 21 [2018-07-25 08:49:55,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:49:55,295 INFO L472 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2018-07-25 08:49:55,296 INFO L473 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-25 08:49:55,296 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2018-07-25 08:49:55,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-07-25 08:49:55,297 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:49:55,297 INFO L354 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2018-07-25 08:49:55,299 INFO L415 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:49:55,300 INFO L82 PathProgramCache]: Analyzing trace with hash -2048264231, now seen corresponding path program 2 times [2018-07-25 08:49:55,300 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:49:55,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:49:55,380 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-07-25 08:49:55,381 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:49:55,381 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-25 08:49:55,381 INFO L451 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-25 08:49:55,382 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-25 08:49:55,382 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-25 08:49:55,383 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand 4 states. [2018-07-25 08:49:55,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:49:55,452 INFO L93 Difference]: Finished difference Result 62 states and 72 transitions. [2018-07-25 08:49:55,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-25 08:49:55,452 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2018-07-25 08:49:55,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:49:55,454 INFO L225 Difference]: With dead ends: 62 [2018-07-25 08:49:55,454 INFO L226 Difference]: Without dead ends: 36 [2018-07-25 08:49:55,455 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-25 08:49:55,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-07-25 08:49:55,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2018-07-25 08:49:55,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-07-25 08:49:55,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2018-07-25 08:49:55,471 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 28 [2018-07-25 08:49:55,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:49:55,472 INFO L472 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2018-07-25 08:49:55,472 INFO L473 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-25 08:49:55,473 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2018-07-25 08:49:55,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-07-25 08:49:55,475 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:49:55,475 INFO L354 BasicCegarLoop]: trace histogram [6, 5, 5, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2018-07-25 08:49:55,475 INFO L415 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:49:55,476 INFO L82 PathProgramCache]: Analyzing trace with hash 1703845991, now seen corresponding path program 1 times [2018-07-25 08:49:55,476 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:49:55,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:49:55,567 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 29 proven. 29 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-25 08:49:55,568 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-25 08:49:55,568 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-07-25 08:49:55,569 INFO L451 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-25 08:49:55,569 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-25 08:49:55,570 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-07-25 08:49:55,570 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand 6 states. [2018-07-25 08:49:55,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:49:55,677 INFO L93 Difference]: Finished difference Result 56 states and 65 transitions. [2018-07-25 08:49:55,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-25 08:49:55,677 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2018-07-25 08:49:55,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:49:55,681 INFO L225 Difference]: With dead ends: 56 [2018-07-25 08:49:55,681 INFO L226 Difference]: Without dead ends: 54 [2018-07-25 08:49:55,682 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-07-25 08:49:55,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-07-25 08:49:55,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2018-07-25 08:49:55,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-07-25 08:49:55,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 60 transitions. [2018-07-25 08:49:55,695 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 60 transitions. Word has length 33 [2018-07-25 08:49:55,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:49:55,698 INFO L472 AbstractCegarLoop]: Abstraction has 52 states and 60 transitions. [2018-07-25 08:49:55,698 INFO L473 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-25 08:49:55,698 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 60 transitions. [2018-07-25 08:49:55,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-07-25 08:49:55,700 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:49:55,700 INFO L354 BasicCegarLoop]: trace histogram [8, 7, 7, 6, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2018-07-25 08:49:55,701 INFO L415 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:49:55,701 INFO L82 PathProgramCache]: Analyzing trace with hash -205689945, now seen corresponding path program 2 times [2018-07-25 08:49:55,701 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:49:55,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:49:55,772 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 91 proven. 17 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-07-25 08:49:55,772 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-25 08:49:55,772 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-07-25 08:49:55,773 INFO L451 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-25 08:49:55,773 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-25 08:49:55,774 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-25 08:49:55,774 INFO L87 Difference]: Start difference. First operand 52 states and 60 transitions. Second operand 5 states. [2018-07-25 08:49:55,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:49:55,832 INFO L93 Difference]: Finished difference Result 102 states and 119 transitions. [2018-07-25 08:49:55,835 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-25 08:49:55,836 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2018-07-25 08:49:55,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:49:55,837 INFO L225 Difference]: With dead ends: 102 [2018-07-25 08:49:55,837 INFO L226 Difference]: Without dead ends: 53 [2018-07-25 08:49:55,839 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-25 08:49:55,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-07-25 08:49:55,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2018-07-25 08:49:55,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-07-25 08:49:55,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 61 transitions. [2018-07-25 08:49:55,855 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 61 transitions. Word has length 47 [2018-07-25 08:49:55,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:49:55,857 INFO L472 AbstractCegarLoop]: Abstraction has 53 states and 61 transitions. [2018-07-25 08:49:55,857 INFO L473 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-25 08:49:55,857 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 61 transitions. [2018-07-25 08:49:55,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-07-25 08:49:55,862 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:49:55,862 INFO L354 BasicCegarLoop]: trace histogram [9, 8, 8, 7, 5, 4, 4, 2, 1, 1, 1, 1, 1] [2018-07-25 08:49:55,863 INFO L415 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:49:55,863 INFO L82 PathProgramCache]: Analyzing trace with hash -1173574567, now seen corresponding path program 3 times [2018-07-25 08:49:55,863 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:49:55,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:49:55,934 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-07-25 08:49:55,935 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:49:55,935 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-25 08:49:55,937 INFO L451 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-25 08:49:55,938 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-25 08:49:55,938 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-25 08:49:55,939 INFO L87 Difference]: Start difference. First operand 53 states and 61 transitions. Second operand 4 states. [2018-07-25 08:49:55,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:49:55,984 INFO L93 Difference]: Finished difference Result 82 states and 93 transitions. [2018-07-25 08:49:55,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-25 08:49:55,985 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2018-07-25 08:49:55,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:49:55,986 INFO L225 Difference]: With dead ends: 82 [2018-07-25 08:49:55,986 INFO L226 Difference]: Without dead ends: 0 [2018-07-25 08:49:55,987 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-25 08:49:55,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-25 08:49:55,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-25 08:49:55,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-25 08:49:55,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-25 08:49:55,990 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 52 [2018-07-25 08:49:55,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:49:55,991 INFO L472 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-25 08:49:55,991 INFO L473 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-25 08:49:55,991 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-25 08:49:55,991 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-25 08:49:55,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-25 08:49:56,197 INFO L422 ceAbstractionStarter]: For program point L382(lines 377 392) no Hoare annotation was computed. [2018-07-25 08:49:56,200 INFO L418 ceAbstractionStarter]: At program point L337(lines 337 348) the Hoare annotation is: (or (and (= ULTIMATE.start_ssl3_accept_~blastFlag~5 2) (= ULTIMATE.start_ssl3_accept_~s__state~5 8656)) (and (= ULTIMATE.start_ssl3_accept_~blastFlag~5 3) (= ULTIMATE.start_ssl3_accept_~s__state~5 8672)) (and (not (= ULTIMATE.start_ssl3_accept_~blastFlag~5 5)) (= ULTIMATE.start_ssl3_accept_~s__state~5 8640))) [2018-07-25 08:49:56,204 INFO L418 ceAbstractionStarter]: At program point L271(lines 271 287) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_accept_~blastFlag~5 5)))) (or (and (= ULTIMATE.start_ssl3_accept_~s__state~5 8448) .cse0 (= 8640 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~5)) (and (= ULTIMATE.start_ssl3_accept_~blastFlag~5 2) (= ULTIMATE.start_ssl3_accept_~s__state~5 8656)) (and .cse0 (= ULTIMATE.start_ssl3_accept_~s__state~5 8464)) (and (= ULTIMATE.start_ssl3_accept_~blastFlag~5 3) (= ULTIMATE.start_ssl3_accept_~s__state~5 8672)) (and .cse0 (= ULTIMATE.start_ssl3_accept_~s__state~5 8640)) (and (= ULTIMATE.start_ssl3_accept_~s__state~5 8496) .cse0))) [2018-07-25 08:49:56,204 INFO L422 ceAbstractionStarter]: For program point L391(lines 388 398) no Hoare annotation was computed. [2018-07-25 08:49:56,209 INFO L418 ceAbstractionStarter]: At program point L354(lines 351 364) the Hoare annotation is: (or (and (= ULTIMATE.start_ssl3_accept_~blastFlag~5 2) (= ULTIMATE.start_ssl3_accept_~s__state~5 8656)) (and (= ULTIMATE.start_ssl3_accept_~blastFlag~5 3) (= ULTIMATE.start_ssl3_accept_~s__state~5 8672))) [2018-07-25 08:49:56,210 INFO L418 ceAbstractionStarter]: At program point L321(lines 321 329) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_accept_~blastFlag~5 5)))) (or (and (= ULTIMATE.start_ssl3_accept_~s__state~5 8448) .cse0 (= 8640 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~5)) (and (= ULTIMATE.start_ssl3_accept_~blastFlag~5 2) (= ULTIMATE.start_ssl3_accept_~s__state~5 8656)) (and (= ULTIMATE.start_ssl3_accept_~blastFlag~5 3) (= ULTIMATE.start_ssl3_accept_~s__state~5 8672)) (and .cse0 (= ULTIMATE.start_ssl3_accept_~s__state~5 8640)))) [2018-07-25 08:49:56,210 INFO L425 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 405) the Hoare annotation is: true [2018-07-25 08:49:56,210 INFO L422 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 405) no Hoare annotation was computed. [2018-07-25 08:49:56,212 INFO L418 ceAbstractionStarter]: At program point L404(lines 286 404) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_accept_~blastFlag~5 5)))) (or (and (= ULTIMATE.start_ssl3_accept_~s__state~5 8448) .cse0 (= 8640 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~5)) (and (= ULTIMATE.start_ssl3_accept_~blastFlag~5 2) (= ULTIMATE.start_ssl3_accept_~s__state~5 8656)) (and (= ULTIMATE.start_ssl3_accept_~blastFlag~5 3) (= ULTIMATE.start_ssl3_accept_~s__state~5 8672)) (and .cse0 (= ULTIMATE.start_ssl3_accept_~s__state~5 8640)) (and (= ULTIMATE.start_ssl3_accept_~s__state~5 8496) .cse0))) [2018-07-25 08:49:56,212 INFO L422 ceAbstractionStarter]: For program point L371(lines 371 389) no Hoare annotation was computed. [2018-07-25 08:49:56,212 INFO L422 ceAbstractionStarter]: For program point L363(lines 363 378) no Hoare annotation was computed. [2018-07-25 08:49:56,212 INFO L422 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 405) no Hoare annotation was computed. [2018-07-25 08:49:56,214 INFO L418 ceAbstractionStarter]: At program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 353) the Hoare annotation is: false [2018-07-25 08:49:56,214 INFO L418 ceAbstractionStarter]: At program point L347(lines 347 352) the Hoare annotation is: false [2018-07-25 08:49:56,215 INFO L418 ceAbstractionStarter]: At program point L295(lines 258 295) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_accept_~blastFlag~5 5)))) (or (and (= ULTIMATE.start_ssl3_accept_~s__state~5 8448) .cse0 (= 8640 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~5)) (and (= ULTIMATE.start_ssl3_accept_~blastFlag~5 2) (= ULTIMATE.start_ssl3_accept_~s__state~5 8656)) (and .cse0 (= ULTIMATE.start_ssl3_accept_~s__state~5 8464)) (and (= ULTIMATE.start_ssl3_accept_~blastFlag~5 3) (= ULTIMATE.start_ssl3_accept_~s__state~5 8672)) (and .cse0 (= ULTIMATE.start_ssl3_accept_~s__state~5 8640)) (and (= ULTIMATE.start_ssl3_accept_~s__state~5 8496) .cse0))) [2018-07-25 08:49:56,218 INFO L418 ceAbstractionStarter]: At program point L291(lines 291 310) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_accept_~blastFlag~5 5)))) (or (and (= ULTIMATE.start_ssl3_accept_~s__state~5 8448) .cse0 (= 8640 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~5)) (and (= ULTIMATE.start_ssl3_accept_~blastFlag~5 2) (= ULTIMATE.start_ssl3_accept_~s__state~5 8656)) (and (= ULTIMATE.start_ssl3_accept_~blastFlag~5 3) (= ULTIMATE.start_ssl3_accept_~s__state~5 8672)) (and .cse0 (= ULTIMATE.start_ssl3_accept_~s__state~5 8640)) (and (= ULTIMATE.start_ssl3_accept_~s__state~5 8496) .cse0))) [2018-07-25 08:49:56,243 INFO L202 PluginConnector]: Adding new model s3_srvr_7.cil.c_19.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.07 08:49:56 BoogieIcfgContainer [2018-07-25 08:49:56,243 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-25 08:49:56,244 INFO L168 Benchmark]: Toolchain (without parser) took 2372.75 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 169.1 MB). Peak memory consumption was 169.1 MB. Max. memory is 7.1 GB. [2018-07-25 08:49:56,248 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 08:49:56,249 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.83 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 08:49:56,250 INFO L168 Benchmark]: Boogie Preprocessor took 33.36 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 08:49:56,250 INFO L168 Benchmark]: RCFGBuilder took 498.95 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-07-25 08:49:56,251 INFO L168 Benchmark]: TraceAbstraction took 1783.63 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-07-25 08:49:56,256 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.83 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.36 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 498.95 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1783.63 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 353]: 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: ((((((ssl3_accept_~s__state~5 == 8448 && !(ssl3_accept_~blastFlag~5 == 5)) && 8640 == ssl3_accept_~s__s3__tmp__next_state___0~5) || (ssl3_accept_~blastFlag~5 == 2 && ssl3_accept_~s__state~5 == 8656)) || (!(ssl3_accept_~blastFlag~5 == 5) && ssl3_accept_~s__state~5 == 8464)) || (ssl3_accept_~blastFlag~5 == 3 && ssl3_accept_~s__state~5 == 8672)) || (!(ssl3_accept_~blastFlag~5 == 5) && ssl3_accept_~s__state~5 == 8640)) || (ssl3_accept_~s__state~5 == 8496 && !(ssl3_accept_~blastFlag~5 == 5)) - InvariantResult [Line: 286]: Loop Invariant Derived loop invariant: (((((ssl3_accept_~s__state~5 == 8448 && !(ssl3_accept_~blastFlag~5 == 5)) && 8640 == ssl3_accept_~s__s3__tmp__next_state___0~5) || (ssl3_accept_~blastFlag~5 == 2 && ssl3_accept_~s__state~5 == 8656)) || (ssl3_accept_~blastFlag~5 == 3 && ssl3_accept_~s__state~5 == 8672)) || (!(ssl3_accept_~blastFlag~5 == 5) && ssl3_accept_~s__state~5 == 8640)) || (ssl3_accept_~s__state~5 == 8496 && !(ssl3_accept_~blastFlag~5 == 5)) - InvariantResult [Line: 351]: Loop Invariant Derived loop invariant: (ssl3_accept_~blastFlag~5 == 2 && ssl3_accept_~s__state~5 == 8656) || (ssl3_accept_~blastFlag~5 == 3 && ssl3_accept_~s__state~5 == 8672) - InvariantResult [Line: 258]: Loop Invariant Derived loop invariant: ((((((ssl3_accept_~s__state~5 == 8448 && !(ssl3_accept_~blastFlag~5 == 5)) && 8640 == ssl3_accept_~s__s3__tmp__next_state___0~5) || (ssl3_accept_~blastFlag~5 == 2 && ssl3_accept_~s__state~5 == 8656)) || (!(ssl3_accept_~blastFlag~5 == 5) && ssl3_accept_~s__state~5 == 8464)) || (ssl3_accept_~blastFlag~5 == 3 && ssl3_accept_~s__state~5 == 8672)) || (!(ssl3_accept_~blastFlag~5 == 5) && ssl3_accept_~s__state~5 == 8640)) || (ssl3_accept_~s__state~5 == 8496 && !(ssl3_accept_~blastFlag~5 == 5)) - InvariantResult [Line: 321]: Loop Invariant Derived loop invariant: ((((ssl3_accept_~s__state~5 == 8448 && !(ssl3_accept_~blastFlag~5 == 5)) && 8640 == ssl3_accept_~s__s3__tmp__next_state___0~5) || (ssl3_accept_~blastFlag~5 == 2 && ssl3_accept_~s__state~5 == 8656)) || (ssl3_accept_~blastFlag~5 == 3 && ssl3_accept_~s__state~5 == 8672)) || (!(ssl3_accept_~blastFlag~5 == 5) && ssl3_accept_~s__state~5 == 8640) - InvariantResult [Line: 337]: Loop Invariant Derived loop invariant: ((ssl3_accept_~blastFlag~5 == 2 && ssl3_accept_~s__state~5 == 8656) || (ssl3_accept_~blastFlag~5 == 3 && ssl3_accept_~s__state~5 == 8672)) || (!(ssl3_accept_~blastFlag~5 == 5) && ssl3_accept_~s__state~5 == 8640) - InvariantResult [Line: 347]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 291]: Loop Invariant Derived loop invariant: (((((ssl3_accept_~s__state~5 == 8448 && !(ssl3_accept_~blastFlag~5 == 5)) && 8640 == ssl3_accept_~s__s3__tmp__next_state___0~5) || (ssl3_accept_~blastFlag~5 == 2 && ssl3_accept_~s__state~5 == 8656)) || (ssl3_accept_~blastFlag~5 == 3 && ssl3_accept_~s__state~5 == 8672)) || (!(ssl3_accept_~blastFlag~5 == 5) && ssl3_accept_~s__state~5 == 8640)) || (ssl3_accept_~s__state~5 == 8496 && !(ssl3_accept_~blastFlag~5 == 5)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 1 error locations. SAFE Result, 1.6s OverallTime, 8 OverallIterations, 9 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 83 SDtfs, 21 SDslu, 40 SDs, 0 SdLazy, 234 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred 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, 6 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 41 NumberOfFragments, 259 HoareAnnotationTreeSize, 10 FomulaSimplifications, 98 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 221 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 212 NumberOfCodeBlocks, 212 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 204 ConstructedInterpolants, 0 QuantifiedInterpolants, 16585 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 371/423 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_7.cil.c_19.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-07-25_08-49-56-273.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/s3_srvr_7.cil.c_19.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-25_08-49-56-273.csv Received shutdown request...